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Патент USA US2387554

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Oct. 23, 1945.
Filed Aug. 24, 1938
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Oct. 23, 1945.
Filed Aug. 24, 1938
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.Oct. 23, 1945.
Filed Aug. 24, 1938
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0d. 23, 1945.
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Patented Oct. 23, 1945
Kurt Aurbach, Bleleield, Germany; vested in the
Allen Property Custodian
Application August 24, 1938. Serial No. 226,468
In Germany August 27, 1937
10 Claims. (Cl. 235-27)
The invention relates to improvements in book- ,
keeping machines and is primarily concerned
with machines having two balance mechanisms
Fig. 2 is a vertical section through the special
keyboard on the line 2-2 of Fig. 1;
Fig. 3 is a similar vertical section on the line
3-3 of Fig. 1, showing a portion of the blocking
upon which double entry accounts can be com
puted. Double entry bookkeeping operations may
comprise a sequence of steps consisting in en
tering old balances of an account and a contra
account, posting the debits and credits of the
account and the contra-account, and taking the
new balances of the account and the contra
front elevation of the special keyboard and part
of its blocking mechanism;
Fig. 4 is a vertical section similar to Fig. 3 on
the line 4-4 of Fig. 1;
Figs. 5a and 5b are two parts of a laterally ex
panded perspective view of the blocking mecha
According to the present invention the book
nism unit;
keeping machine is so constructed that under
Fig. 5c is a side elevation of a part of the
the control of setting means it is possible to
blocking mechanism;
carry out bookkeeping sequences consisting of a 15
Figs. 6-8 are, respectively, vertical sections on
varying number of operations on one and the
same machine. More specifically, the machine
can be operated to carry out a sequence in
which the old balance, the debits and credits,
the lines 6-6, 1-1, 8-8, of Fig. 1, each showing
a portion of the blocking mechanism unit;
Figs. 9 and 10 are, respectively, vertical sec
tions on the lines 9—-9 and ill-l0 of Fig. In;
and the new balance of a single account are 20
Fig. 11 is a vertical section on the line li-il
entered; or a sequence in which the old balance,
of Fig. la, showing a portion of the blocking
the debits and credits, and the new balance of
mechanism unit;
both an account and a contra-account are en
Fig. 12 shows the controlling and engaging
tered, the posting of the debits and credits to
mechanisms for one set of totalizers;
both the account and the contra-account being 25 Fig. 13 is a sectional view of the adjusting
executed in a single machine operation.
mechanism for the tctalizers;
In accordance with another feature of the in
Fig. 14 is a sectional view of the engaging
vention in making entries of the old balance,
mechanism for one of balance mechanisms;
debits and credits, and new balance in a single
Fig. 15 is a side view, with parts in section, of
account, only a single setting means for the 30 a portion of the mechanism shown in Fig. 14;
debits and credits is set, while for sequences in
Fig. 16 is a sectional view of the adjusting
which the old balance, the debits and credits, and I mechanism for the balance mechanism;
the new balance are entered in both an account
Fig. 1''! is a sectional view of a portion of the
and a contra-account, a plurality of setting
mechanism shown in Fig. 16;
means‘ for the debits and credits may be set for
Fig. 18 is a cross section through the whole
a single machine operation.
mechanism and shows the differential actuating
In accordance with another feature of the in
mechanism for the key bank and totalizer mech
vention all the blocking devices are mounted in
anisms A—-H and balance mechanisms I, 11.
a special carriage, and can be set into the ma
The machine has two balance mechanisms I and
chine as a unit, occupying the same space be 40 II (Figs. 14, 16 and 18).; also eight totalizers E
hind the special keys which the totalizers 0c
for the old balance postings, namely, two for
cupy behind the amount keys.
each of the old debit balances and the old credit
While the improvements, which are now to be
balances, corresponding respectively to the bal
described in detail with reference to one illus
ance mechanisms I and II, and a similar group
trative embodiment of the invention shown in 45 for entries in the account and contra-account,
the drawings, were developed as a part of a book
composed of two each for the old debit balance
keeping machine for double-entry accounting,
and the old credit balance, corresponding, respec
tively, to the balance mechanisms I and II.
The setting and blocking mechanism shown in
There are, in addition, 22 totalizers A, B for
the drawings of this application is part of a 50 the debit posting, 22 totalizers C, D for the
machine whose printing mechanism is shown in
credit postings, a collective totalizer F for all
my copending application Serial No. 226,467, to
debit and credit postings together, a totalizer G
they are not all restricted to such machines.
which reference is made for a more complete
for cancellations and a totalizer H for corrective
disclosure of those parts of the machine.
Figs. 1 and 1a. are two parts of a developed 55
The selection of these totalizers and balance
mechanisms is performed by keys, which are ar
ranged in key banks i-l, as shown in Figs. 1 and
ing teeth. The plates 89' are positioned between
lugs ‘l5’, ‘it’, on bars 14', and are thus shifted
The balance mechanisms I and II are se
up and down by movement of these bars. The
lected for engagement with a differential mech
relation of the horizontal slot in bar 69' to the
upper edge of plate 68' is such that when the
anism 2i’ (Figs. 14 and 18) by the keys 8, 9, i0,
plate 69' is in its upper position the rack bars
ii of bank 6 (Figs. 6, '7. and 8) and keys l2, I3
ii’ are all held at the level of the top of plate 68',
of bank '|._ The totalizers E for the old balance
while in the lower position of plate 69'_ those
entries, the totalizers G and H for the cancella
rack bars d’ which are above the notches in plate
tions and corrective entries, and the collective
totalizer F for all debit and credit postings are 10 68' are permitted to drop into these notches.
The action is made positive by the teeth on the
selected for engagement with the differential
upper part ‘iii’ of the plate 69’. The longitu_
mechanism by the keys ill-24 in bank 5 (Fig. 13).
dinal movement of slide 3!’ enables the notches
The selection of the 44 totalizers A, B, C. D for
in bar 68' and teeth on bar 69' to be brought
the debit and credit postings is performed by
keys 25-28 in banks I-? (Fig, 13). The keys 8, 15 into registry with any desired set of rack bars
6' constituting one totalizer of the group. The
9, l0 and i I also set the machine for operating
other rack bars are held up into engagement with
the balance mechanisms either additively or
Elsie locking bars It’ by the upper edge of plate
subtractively, the keys I2 and I3 (Figs. 9-11) set
the machine for resetting the balance mecha
nisms I and II, the key 29 sets the machine for 20 Rotatably but non-shiftably mounted on the
slides 3!’ are shafts 29'. These shafts have ?xed
taking a sub-total from the totalizers of the
upon them, at intervals corresponding to the de
banks l-5, and the key 30 sets the machine for
nominational spacing of the totalizer rack bars,
resetting the totalizers of the banks I-5.
arms 30'. The arms on one shaft 29' are adapt
The totalizer mechanism, shown in Fig. 18, is
the same as that described in Jacob Patent No. 25 ed to be positioned by the longitudinal move
ment of slide 3!’ opposite the ends of the rack
2,029,776. In this application the same reference
bars 4' constituting one totalizer. Mechanism is
numerals with a prime mark are used for corre
provided to swing the arms 30' to the left to
sponding parts. Each group of totalizers com
move the rack bars 4' constituting the selected
prises a series of storage members, in the form
of rack bars 4' and a series of pinions l3’ ro 30 totalizer to the extreme left position represented
by the rack bars of the groups B and D in Fig.
tatably mounted on shafts.i2' supported on the
18. Each shaft 29' has ?xed to it a broad pinion
side walls 3'. The rack bars 6' are supported on
31' which meshes with teeth 38' on a bar 39'
a stationary frame i’ in a way which permits
guided for vertical movement by a rod 4!’ en
horizontal sliding movement as well as tilting
movement in a vertical plane. For this purpose 35 gaging in a slot 68' of the bar, and by a lever
£35’ pivoted at 4M’ to the side wall 3’ and articu
the rack bars are guided by rods 1’ passing
lated by a pin 63' to thelower end of the bar 39'.
through slots 6' in the rack bars. The rack bars
6' are arranged in the usual way, with the bars
of the same denomination of all the totalizers
of the group side by side. The pinions it’ are
sufficiently broad to engage all the rack bars of
one denomination of one entire group. The rack
bars Al’ have at their left ends 8' two series of
teeth on their upper and lower edges respec
tively. The upper set of teeth is for engage
The lever d5’ carries a roller M9" adapted to en
gage a cam groove (not shown) in a cam wheel
illl' ?xed on main shaft 98’.
Each shaft l2’ carrying pinions i3’ is mount
ed in a carriage 2%’ (Fig. 12) guided for hori
zontal sliding movement in slots 26a’ in the side
walls 3'. The carriages 26' can be moved by
mechanism to bev described presently to ‘bring
gears M’ ?xed to pinions it’ into engagement
with teeth 26’ of differential rack bars 2!’. The
i0’, while the lower set of teeth is for engage
teeth ill’ on the opposite side of rack bars 2!’
ment with the pinion i3’. The rack bars can be
tilted about the rods 7' to shift them from en 50 mesh with segments H8’ mounted on a shaft
ment with a tongue ii’ on a stationary tie bar
gagement with the locking bars ill’ to the pinions
t3’, and vice versa. The shifting is accomplished
H9’ and differentially controlled by keys H911’.
A brief description of the operation of the
by means of vertical bars ‘ill’ swung on arms l8’,
‘l9’, pivotally supported on rods 80' carried on
the side walls 3'. Thebars ‘Ill’ are shifted up
and down by a cam mechanism fully disclosed in
the said Jacob patent and which will not be de
totalizers by the differential mechanism will now
be given, but for a full description reference is
made to the said Jacob patent.
In the position of rest of the machine the rack
bars at’ are in various positions corresponding to
the totals which they represent and are engaged
scribed in detail here. Arrangement is made to
tilt simultaneously, by means of the bars ‘iii’, the
individual rack bars él’ of each denomination
which constitute one totalizer. For this purpose
there is mounted on the bottom of the frame i’
a slide 3i’, which can be shifted longitudinally
0n the frame i' by a mechanism to be described
presently. At the face of the slide 3i’ toward
the front of the machine is ?xed a plate 68’
with the locking bars ill’, the plates 69' being
in their upper positions. The carriages 25’ are
in their right end positions and gears I8’ are out
of mesh with the teeth 26'. At the beginning of
the operation, after the totalizer has been se
lected by longitudinal movement of slide 3!’,
through the operation of a mechanism to be de
scribed presently. the bars ‘M’ are moved down
and the selected rack bars G’ are tilted out of
which has notches spaced at the proper inter-l
engagement with looking bar it’ and into en
vals to let down the rack bars ii’ of each de
gagement with pinions it’. The bar 39’ is now
nomination of a single totalizer. At the front
of the plates 68' is a plate 69' mounted so as to 70 lifted and arms 38' swung to the left, coming
into engagement with the ends of the rack bars
have a short vertical movement. The plate 59'
at various points dependent upon the individual
has a horizontal slot through which the rack
bars (3' extend and on the upper portion ‘l3’ above ' positions of the rack bars and moving the lat
ter to their extreme left positions. The pinions
this slot there are at spaced intervals, opposite
the notches in the bar 68', downwardly project 76 i3’, which are in zero position at the start of
the operation, are turned counterclockwise by
amounts corresponding to the movements or the
individual rack bars engaged with them. At the
end'of this movement the rack bars 4’ are swung
up into engagement with the locking bars I0’.
Meanwhile the differential rack bars 2|’ have
been moved idly to the upper limit oi their move
ment by the segments I8’. The totalizer engag
ing mechanism to be described presently is now
brought into operation and shifts the carriages
26' to the left, bringing the gears I4’ of pinions
I3’ into mesh with the teeth 20'. The segments
3 .
pair oi’ locking levers HI’ and sliding plates M3’
for each group of totalizers, ‘each being operated
by the bars I29’ in the manner described, when
prepared by shifting from the full line position
of Fig. 12 to the dotted line position.
The devices for carrying out individual post
ing operations in an orderly fashion are only de
scribed insofar as they are essential to the op
erations of posting to the account and the con
10 tra-account.
If a series of entries is to be carried out on
I8’ are now turned in clockwise direction by
the machine, which consists of the old balance,
4' are then tilted down again into engagement
with pinions l3’. Resetting rack bars I8’ are
the bank 5. In addition, the machine releasing
keys 5!, id, and iI are locked when the (key I5
is depressed, the keys 8, I 8, II are locked when
the key is is depressed, the keys 8, 9, H are
locked when the key ll’ is depressed, and the .
keys 8, S, and iii are locked when the key it
is depressed. A blocking of the debit and credit
totaliser banks i-d does not occur, because even
if one of these keys has been pressed during the
one or more debits or credits, and the new bal
amounts dependent upon the setting of keys
I I9a’, these movements being added on the pin 15 once, after setting up the corresponding amount
in the amount setting ?eld 3|, one of the keys
ions I3’ to thevalues ?rst transferred to the pin
I5-l8 for the “old balance” is pressed, which
ions. At the end of the differential movement
brings into effect a mutual locking device (not
the carriages 26’ are moved to the right, disen
shown), preventing depression'of another key in
gaging gears M’ from teeth 20’. The rack bars
thereupon moved upward by driving means (not
shown) and the sets of teeth ltd’ on the right
hand edge of these rack. bars engage special
parts of the pinions E3’ to turn said iolnions
clockwise into zero position. These movements
are transmitted to the rack bars it’, which are
thus set into new positions corresponding to the
total of the amount previously stored in them
and the amount added.
The engagement of the totalizers with the dif~
entry oi’ an old balance, a transmission of the
amount set to the selected debit or credit total
izer does not occur‘
ferential mechanism, that is, the engagement of
the gears it’ with the teeth ill’ oi’ differential
advancement of the corresponding item coun
rack bars ii’, is accomplished by a mechanism
fully described in the said Jacob Patent No. 35 ter. By depression of the corresponding un~
blocked key in bank ii the machine is released
2,029,776. Fig. 12 of this application shows the
for operation and the old balance is entered in
part of this mechanism at one end of the total
the corresponding old balance totalizer E, as well
izer groups, the other end being the same, ex
as in the corresponding side (plus or minus‘) of
cept that it does not include the cam and pit
man. At both ends the carriage it’ is ?tted with 40 the balance mechanism I or II. also, the proper
columns of several record sheets are selected and
pins i213’ protruding from the portion of the car»
printed, as will be described in part herein and
riage 25’ guided in slots 26a’. These pins are
more fully in my copending application Serial
normally received in notches iota’ of locking
No. sass-er.
levers I2l’ pivotally mounted on studs izd’ on
The posting or‘ the debits or credits is carried
the side walls 3’. Each locking lever E26’ car~
out by ?rst setting up the amount in the amount
ries a sliding plate 823’ having a groove to re“
setting ?eld, then-pressing one of the debit or
ceive supporting pins 922’ projecting from the
credit totalizer keys in the banks Ml, then releas~
locking lever til’. fl'ach locking lever 122i’ has
an arm idle to which is pivotally connected a
link 58, operated, in a manner to be described
presently, by the keyboard. By means of the
links 55 the locking levers Hi’ can be raised to
transfer the pins 628’ from the notches idea’ to
notches its’ in sliding plates lie’. The sliding
ing the machine for operation by pressing the
proper key 3-H in the bani: 6. During this ‘ma
chine operation the debit or credit item of an ac»
count is transmitted to the corresponding debit
or credit totalizer A-D, as well as to the proper
side of the balance mechanism I or II. Also, the
corresponding columns of several record sheets
plates I23’ are provided‘with slots l2?’ cooper
' are selected and
printed. Since there is no block
ating with pins its’ on plates are. The plates
ing means between the banks of keys 6-5 and the
I29’ are pivoted at their lower ends by studs
bank 5, the debit or credit totalizer key which has
536’ on two three=armed levers H32’. The levers
been pressed becomes inoperative, if a key in the
E32’ are secured to a shaft i3il' journalled in-the
side walls 3’. A connecting rod H9’ connects 60 bank 5 has also been pressed, while the depressed
key in the bank 5 controls the operation of the
the levers I32’ with the two-armed levers 533' by
In such a case, accordingly, the ma
means of studs 531i’ and I38’. The said levers
chine either enters an old balance, a cancellation,
E33’ are ?xed to a shaft l3!’ journalled in the
or a corrective amount.
side walls ii’. The downwardly directed arm of
If by mistake a key in the debit banks i or 2,
each lever I 33’ carries a stud 535’ with a guid
as well as a key in credit banks 3 or d has been
ing element I35’, which engages in a slot at the
pressed, the machine will carry out, in a man
end of the corresponding plate W9’. A pitman
to be described presently, a posting operation
M3’, which is pivotally connected to one of the
including, insofar as the debits and credits are
levers I32’ by a stud I44’ is guided at its oppo
70 concerned, a posting to the account and to the
site end on main shaft 98' and carries an anti
contra-account. In such a case the releasing keys
friction roller M2’ engaging in the cam race
8-4 I in bank 6 are free for operation.
Ill’ of pitman cam I 40’. By means of the mech
In order to determine the new balance of an
anism above described the plates I29’ and the
pins I28’ are moved horizontally. There is a 75 account, which may be positive or negative, it is
only necessary to press either of the releasing keys
i2 or 13, whereby the corresponding balance
mechanism is reset to zero and the total is printedv
in a corresponding column of the record sheet.
a detailed description of the
mechanical devices for carrying out these opera»
The old balance of an account, which cus
tomarily precedes a series of entries, is intro
_ There will follow
crank lever is connected 9. bar 69 having two
shoulders 6G and ti, which cooperate with two
pins t2 and 83, which are ?xed respectively to two
toothed levers 5Q and 65 (Fig.5). The thrust bar
89 is controlled by the keys i5, l6, l9, and 2t and
a thrust bar 39a. (Fig. 5) similarly controlled by
keys ll, i8, 2i, and 22, acts in the same way
through a bell crank lever 68a and shouldered
bar 59a upon pins t2 and 63. The toothed levers
duced by setting the corresponding amount in the
6d and 65 are rockably mounted respectively upon
amount setting ?eld 3i and pressing one of the 10 shafts 66 and 6?. The shafts $6 and 61 are
keys lE-i?, for instance the key [5. Mecha
mounted in two side plates 68 of the blocking unit.
nism is provided to block all of the keys of bank
To the lever 65 is connected, by a pin 69, a, link
6, except the key é corresponding to key i5. For
‘it, whose lower end is connected at ll to the
this purpose a slide 38 (Figs. 1 and 2) is mounted
adjacent the key bank 5, which is pushed down
ward by depression of the key l5. A thrust bar
39 connected to slide 38 is provided with two '
?ngers (it, which straddle a ?nger 6! (Fig. 3) of
arm ‘12 of a bail ‘E3. The bail 73 is rockably sup
ported upon a shaft ‘Hi, which is also mounted in
the side walls 68. The ball 73 extends beyond
the right-hand side wall 68 and has at its right
‘ hand end an arm ‘Mia, to which is secured a pin
id. The pin 75 is connected to a link 76, whose
end at guided upon a shaft (it and is connected
other end is articulated to an arm ‘ll of a bell
a thrust bar (i2.
The thrust bar 62 has a forked
with a slide (35 located beside the key bank 6. This
slide has lugs 65a adapted to block pins 46 on keys
crank lever id. The bell crank lever '58 is rock
ably supported on a pin 19 secured to a thrust
‘3, iii, and M, when moved downward by the de
bar 88. The lower forked end of thrust bar 8b
pression of key i5, or to block pins 58 of keys 8,
is guided upon a pin 229 ?xed upon a side plate
it, i i when moved upward by depression of key 1 8. 25 85, while its upper end is connected to an arm
In the case under consideration the keys 2, iii
328 of a. bail 32?, for a purpose to be described
and ii are blocked.
presently. A bent-over end 78a of bell crank lever
A blocking mechanism 38b, 39b, (lib; (55b (Fig.
l8 coacts with a ?nger SI of a bar 82. A fork 83
1) similar to the one just described is provided be
of bar 82 is guided upon a rod 84, which is
tween the keys ll and i8 and the keys ii-i i, which 30 -mounted in the side walls 88 and 85. A notch 86
blocks the keys @, e, il when the key ii is pushed,
and the keys 8, 9, it when the key it is pushed.
This mechanism will not be explained in detail,
in view of its similarity to the one just described.
At the same time depression of the key i5 con
ditions means to e?ect the engagement'of the cor
of bar 82 engages over the upper end of a lever
‘Mt rockably mounted upon a pin 15!. The pin
liii is ?xed in a bell crank lever Bl, which is rock
ably mounted upon the casing wall 5% by means
of a pin 88. A fork 9d of lever Bl engages over a
pin 89 ofea/ lever 9 l , which in each machine opera
responding old balance totalizer, which is to be
tion is rocked ?rst clockwise and then counter
come effective during the machine operation.
clockwise, by driving means not shown. The
For this purpose a slide til (Figs. 1 and 4) beside 40 lower end of lever ‘M6 engages in a recess ‘Hi3 of
the key bank 5 is moved in clockwise direction by
an upturned lug 7432 of a slide 739. The clock
the pin (ii on key l5. This slide iscoupled to a
wise rocking of lever 9|, which swings bell crank
thrust bar (it, which bears a pin 59 engaging in a
lever Bl in counterclockwise direction, also turns
slot El of a bail'EZ. The thrust bar it is yield
the lever ‘M6 in clockwise direction on its pin‘ ‘85!,
ingly coupled to the ball 52 by a spring 53, one
because the end of lever ‘Hi6 engaging in the notch
end of which is attached to the pin 5d and the
86 is held fast by the bar 82. Consequently the
other to a pin 56 on the bail 52. The ball 52 has
lever ‘M8, whose lower end ‘M3 engages in the fork
an ‘arm 65 to which is connected the link 55 that
‘M2, moves the slide 139, with the result that the
serves to couple the carriage 26’ to the totalizer
printing mechanisms are positioned for printing
engaging mechanism.
in the old balance columns of all the record sheets,
The mechanism for selecting the individual
through a mechanism described in my said co
totalizers within each group is shown particularly
pending application Serial No. 226,467.
in “Fig. 13. The keys id-zli and 25-28 repre
Following the depression of key it, the un
sented in this ?gure control a, differential mecha_
blocked releasing key 8 (Fig. 6) is pressed. This
nism mounted on shaft M9’, which need not be
key has, in addition to its machine releasing func
described in detail. To a plate 59' differentially ' tion, the functions of determining whether the
controlled by the keys are pivotally attached links
balance mechanism is to be operated positively or
Mill-Ede’. The opposite ends of these links are
negatively, and selecting the proper balance
connected at 53' to arms 52’ of spirally slotted
mechanism for engagement. For these purposes
cam members 50' ?xed upon shafts 5!’. The
there is provided beside the key bank 6 a slide 92
slots of cams 56’ receive pins £58’ of collars éll' 60 (Fig. 6), having oppositely inclined shoulders 92a
?xed to shafts (38'. The shafts (16' are thus
and 92b for coaction with the respective pins (iii
shifted axially during the machine operation and
of keys 8 and 9. The slide is moved oppositely
being ?xed to the sliding frames 3!’, as seen in
by these pins, the pin of key 8 moving it upward.
Fig. 18, serve to slide the frames 3!’ for selecting
A thrust bar 93 is coupled to a slide 92 and is con
the totalizer to be operated, as previously de 65 nected by a pin ed to a bail 95 rockably supported '
upon a rod 95 mounted between the side walls
As shown in my copending application Serial
58. To an arm 97 of bail 95 is connected a link
No. 226,467 the machine has a printing mecha
98, whose lower end is coupled by a pin 99 to a
nism for printing the old balances, debits, credits,
bail we. The bail tail is rockably mounted on a
and new balances in separate columns of several 70 rod 841 and has ?xed to it a. pin i®i which en
record sheets. The selection of the old balance
gages in a slot m2 of a. rod lbs. The rod W3 is
column for printing is one of the functions of
connected to a bell crank lever IBIS, which is
keys (15-22. For this purpose the thrust bar 39
loosely rockable upon a shaft m5. To the other
(Figs. 2 and 3) acts upon a bell crank lever 58
arm of the lever lid is connected a link we, which
rockably mounted upon a shaft El. To this bell 75
is articulated at its opposite end to a lever I08
secured to a shaft I01. This shaft serves for
lateral displacement of the balance mechanism,
according to whether the latter is to be operated
for positive or negative registration of an amount.
A lever H23 (Fig. 16) ?xed to shaft I01, rotates a
plate H04 by means of parts H24, H25, H21 and
‘ I I28. The plate H04 is rotatably mounted by pin
H30 on rod H3I and controls the movement of
rod II3I, caused by the differential mechanism
H05, “05a acting on plate H04. The movement
of rod H3I is transmitted through parts H33, i I34
the machine. ‘Hie releasing shaft stands under
the pull of a spring (not shown) and swings in
clockwise direction when the lever H9 is released
_ by the square pin Hi.
The debits and credits of an account are posted
by ?rst setting the amount in the setting- ?eld nu
meral key board 3i (Figs. 1 and 1a) and then
pushing one of the keys 25-23 (Figs. 1 and 1a)
in the key banks i-t, for instance, a key' 20 in
the key bank 2. Since this key is a debittotalizer
key, the amount is to be negatively entered in the
balance mechanism.
By pushing a key 26 a
to cause a lateral movement of balance mecha
blocking device, which need not be described, be
nism I from debit to credit position, or in the re
tween the key banks i and 3 becomes e?ective, So
verse direction. The balance mechanism consists 15 that in the key bank 5, whose keys 25 are also
essentially of adding wheels 339 (Figs. 14, 16 and
debit totalizer keys, no key can be pushed. A
17), which are ?xed to zero setting wheels 340 and
subtracting wheels 34 I. The latter are connected
similar blocking device is arranged between the
key banks 3 and d.
to the adding wheels 339 by pinions 342, 343. The
The key 28 in the special key bank ‘2, upon de
adding and subtracting wheels 339, 340 are freely 20 pression, operates through the parts i3'4, I35, I36
revoluble upon axles 344, 345. In adding opera
tions the adding wheels 339 engage the rack bars
2|’, while in subtracting operations the subtract
(Figs. 1, 1a and 4) to condition the correspond
ing debit totalizer for engagement with its
di?erential racks, as has already been described
ing wheels 3“ engage the rack bars. In zero
for conditoning the Old Balance totalizer for en
setting operations the zero setting wheels 340 en 25 gagement with its di?erential racks. The bails
gagethe Zero setting rack bars I0’, so that the
H46, I41, I43 and H49 (Figs. l and 1a.) for condi
amount in the balance mechanism is transmitted
tioning the engagement of the debits and credits
through the subtracting wheels 34I to the rack
bars 2 i '.
totalizers, correspond with the ball 52.
These bails control mechanisms such as shown
in Fig. 12, to shift the totalizer pinions I3’ of each
group of totalizers into and out of engagement
with their corresponding di?erential racks or
adapted to act upon an arm H 0 of a toothed
members ill’.
sector III. The toothed sector i ii is supported
The adjusting mechanism for the series of debit
upon a rod I I2 and meshes with a toothed sector 35 and credit totalizers A—D corresponds with that
H3 rockably mounted upon rod 84. An arm lid
heretofore described in connection with the total
of toothed sector H3 stands in contact with the
izers E-H.
pin 99. The two arms H0 and H4 oi’ toothed
The depression of a key in either of the banks
sectors l H and H3 are connected by a spring i W,
i, 2 also releases a blocking device for the release
which pulls them into contact, respectively, with
key 9 of bank 55, while depression of a key in either
the pins M9 and 99. A second arm l 65 of toothed
of banks 3st releases a blocking device for the
sector H3 carries a rod H3 which is coupled to
release key 8. For this purpose there are
a lever H1 secured to a shaft MB. This shaft
mounted beside the key banks (1 and 2 slides E135,
serves for coupling the balance mechanism with
corresponding to the slide d3 oi’ the key bank 5.
the di?erential members. A lever 4089 (Fig. 1e)
These slides are moved upwardly by the pins 534
?xed on shaft H8 acts upon a three-armed lever
of the keys 25 or ‘26 and each is coupled to a
l03l, whose arm I092 meshes with a notch 4093
thrust rod 536 (Figs. 1 and 4). Each thrust rod
of a crank lever i094 rotatably mounted on a
533 is connected to a link till, whose fork Q33
shaft 50%. The crank lever M94 is connected
engages a pin 539 of a bail idll. The ball 840 is
with the plates l09'I/98 by a link i030. The
rockably mounted upon shaft 11% and has an arm
plates i09‘I/90 are rotatably mounted by pin i039
i4l bearing a pin M2 upon which are hung two
on a rod M00 and cooperate with an arm H53
blocking bars M3 and are. The blocking bar 653
fixed on shaft H03. The rod H00 is supported
(Fig, 5a) is shifted by operation of a key of the
by arms Hts/0'! and, driven by arm H02 which
banks 9 and 2; the blocking bar 2'5'5 by a key of
engages plate i098 for downward movement, or r the banks at and d. The blocking bar M3 has a
The engagement of the balance mechanism and
adding racks 2 I ' is effected by the following link
age. Upon the bar 98 (Fig. 6) is fixed a pin I09,
pin HOE for upward movement, acts through
parts 4508/09 to shift the balance mechanism I
in one or the other direction.
recess M4 open at one side and below this a block
ing face M5. This blocking bar is moved down
ward a short distance by depression of any one
One of the functions of the keys 3-H is to re=
of the keys of the banks i and 2. The blocking
lease the machine for operation. For this pur- till ‘bar 2'75 is shaped similarly to the blocking bar
pose there is mounted beside the key bank 6 a
H43, having a recess 275a and adjoining block
slide I20 (Fig. 7) having cams I200; to be en
ing face 213. The bar 215 is ?xed to a pin 234
gaged by the pins 46 of the keys. The slide I23
mounted on a bell crank lever 273, which is rock
is connected with a thrust rod I H which bears a
ably supported on shaft 66. A pin M2 on the up
pin l 22 over which is engaged one end of a spring 65 wardly extending arm of bell crank lever 213l en
423. The opposite end of the spring is engaged
gages in the fork 2H of an arm m of a bail Hi.
by a hook M4 mounted in the frame of the key
The bail 24i is rockably mounted on shaft 338
bank 6. The thrust rod i2i engages over a pin
and its two upwardly extending arms are respec
I25 of a bail i228, which carries a square pin I27
tively engaged by the forked ends of the two
and is rockably mounted upon a shaft I 28. With 70 thrust bars 240. These thrust bars are connected
the square pin 52? cooperates a lever I29 rock~
to bars 239 (Fig. 4) actuated by slides 238
ably mounted upon shaft 96 and having an arm
mounted beside the key banks 3 and 4. The slides
i30 connected to a‘link I3I. The link MI is
238 are moved upwardly on depression of any
connected to a lever I32, rigidly secured to the
of the keys in these banks, by the pins 23'! of the
releasing shaft i33 which causes the release of 75 keys. This motion shifts the blocking bar 215
upward for a short distance. The bars Elli and
M3 are independently movable in vertical direc
tion, due to the pin and slot connections between
them, but are both sustained against horizontal
movement by the pins 276 and M2.
Coacting with the blocking bars M3 and 275
(Fig. 5c) is a pin lit, (Fig. 50), which is sup
(Fig. 7) from the lever lid, in the manner previ
ously described.
The keys it and ll release operations for en
tries in balance mechanism 11, being coordinated
with keys ll and ill for this purpose in the same
way as keys 8 and 8 are coordinated with keys
l6 and if).
Depression of either key 8 or key 9 e?'ects the
portedandpositionedby two links ill and H2 piv
engagement of the corresponding side of the
otally connected together by it. In any machine
operation in which no key has been depressed in 10 balance mechanism with the di?erential mech
m in the manner previously described. For
any of the rows except 9-5, the pin H3 is posi
instance, by pushing the release key 9 the slide
tively moved by the actuation of one of the re
92 (Fig. 6) is pushed in counterclockwise direc
leasing keys 8, 9, along one of two de?nite paths,
and through the parts til, dd, 95, 98, 9553, ldll
which are different for each key, but both of
the pin MM is moved in the slot m2. There is no
which cross the plane of the blocking faces M5
displacement of the balance mechanism, al
and 27%. The position of the blocking bars i023
though it is a debit posting, because the balance
and 2% determines which of the keys 8, 9 can
mechanism returns to subtraction position after
be pushed to release the machine. The link l‘ll
each machine operation. On the other hand, the
is connected to the forwardly extending arm lid
pin 99 acts upon the arm lid of toothed sector
of a bell crank lever ltd rockably mounted upon
H8, whereby the latter is swung in clockwise
a shaft ltd. The upwardly extending arm of
direction and moves with it the rod l it. Through
this bell crank lever bears a pin it‘? engaging in
the lever lll shaft lid is turned in counter
the fork ldll of an arm ltd projecting downward
clockwise direction and thereby the balance
from the ball 95. This ball, as previously de
mechanism is shifted into engagement with the
scribed. is rocked either clockwise or counter 25 differential members.
clockwise by depression of the key 8 or the key
For the selection of the proper column of the
9 (Fig. 6). This rocking movement shifts the
record sheet the bail ldll (Fig. 5) is provided
pin l‘lti upward or downward for a short distance,
with an arm ltll, which has ?xed to it a pin
through the connections described. The block 30 ldl. The pin ltl projects into a slot left of a
ing faces M5 and 27d of the blocking bars M3
pawl n58, which is rockably mounted upon a
and ‘Ella are somewhat staggered. In the normal
pin I56 ?xed to a lever l5?) rockably supported
position of these blocking bars the pin H3 is
on a shaft ‘ll'l. Upon pin ltd there is also pro
moved upward to the level of recess 275a by de
vided a thrust bar I56 having a slot it? which
pression of the releasing key @, but is opposed to 35 embraces the pin l5l. The thrust bar ltd has a
the blocking face Md. The operation of one of
bent-over arm ltd which coacts with a ?nger
the keys of the banks l and 2 moves the block
ltd of a bar ltd. A notch it! of bar ltll en
ing bar M3 downward till its recess M6 is in align
gages the upper. end of a lever ‘PM, which cor
ment with the recess 2750:. thus leaving the pin
responds to the lever i416 and has a similar e?ect,
l‘ld free to be moved rearward, in a manner to
but with this difference, that through the parts
be described presently. On the other hand, if
‘H62, 7368, ‘E3? the debits column of the record sheet
the pin ill? is moved downward by depression or‘
is selected. The bent-over arm ltd coacts at the
the releasing key 8, it comes below the blocking
same time with a ?nger M52 of a bar ltd having
face i135, but is still opposed by the blocking face
a socket ltd engaging over the top of a lever
2%. Movement upward of the blocking bar 2% (i5 W9. By the bar ltd, the lever ‘lit, and the parts
by depression of one of the keys of the banks
‘ll‘l, W8 and lit, the type wheel for the special
8 and (3 removes the blocking face 276 from in
sign (not shown) is moved into printing posi
tion, as disclosed in my aforesaid copending ap
front of the pin lid. The pin H3 is forced to
plication Serial No. 226,467.
execute a movement toward the blocking bars M8
The thrust bar its has a second bent-over arm
and 275 each time either of the releasing keys
2% which coacts with a ?nger it? on the lower
8 or Q is operated. For this purpose the bail l26,
(Figs. 5a and 5b) which is rocked in clockwise v side of a bar 268. This bar has a notch 25S em
gaging the upper end of a lever lll'l rockably
direction (Fig. 'l) by depression of a key of the
mounted on pin 'ldl. The lever ‘Hill acts upon a
bank ll, as previously described, has an arm l‘l'd
(Fig. 5a) to which is connected a link lit, the 55 slide ‘Md to cause the printing mechanism to
print in the credit columns of the record sheets,
lower end of which is articulated to a bail l‘l'l
rockably mounted upon a shaft l‘ltl. An arm lid
of bail ill carries a pawl ltll, which acts upon
a pin ldl of a lever its rockably supported on
shaft “it. The lever i852 has ?xed to it a pin ltd
in a manner similar to the other levers of the
group. The arm 26% also coacts with a ?nger
ld?a on the lower side of bar ltd, to control the
setting of the special type wheel. As‘ previously
explained, the bail ltd rocks in clockwise direc
tion for engaging the addition side of the bal~=
which carries a double pawl ltd, lllt, whose arm
l8?) acts upon a pin it? of a lever ill-‘.1 rockably
ance mechanism with the di?erential mecha
mounted on shaft lt‘l. The upper end of this
nism, and in counterblockwise direction for en
lever is articulated to the previously mentioned
link H2, at the rear end of which the pin W3 is 65 gaging the subtraction side. correspondingly,
the arm 265 is engaged with the ?nger 2H for
?xed. Through this mechanism the pin W3 is
credit entries and the arm H58 with ?nger E59 for
forced to move toward the blocking bars i413 and
debit entries.
275 whenever any key of the bank 6 is pushed.
When a key in. the special key bank 5 is
Thus only the key 8 which moves the pin lid
downward can be operated when a key of banks '30 pressed at the same time as a key in one of the
banks l-(l, the operation of the machine is con
8 or £3 has been set, and only the key 9 which
trolled by the key in the bank 5. Accordingly,
moves the pin H3 upward can be operated when
the mechanism for selecting the debit or credit
a key of banks l or 2 has been set. Depression of
column of the record sheets is disabled. For this
either the key 8 or the key d releases the machine
purpose, the link i553 which has a notch E52 nor
operation by withdrawing the square pin 327
mally engaging pin it! is connected by a pin
account and the centres-account are carried out
in the following manner;
The entry oi’ the old balance is Performed in
153a and a link l53b to the arm 14a of the ball
13. By this linkage rocking of the ball 13 in
clockwise direction, which occurs when any key
such a booking operation in the some way as
of the bank 5 is pressed, disconnects the link 5 described in the preview part of this speci?ca=
I53 from the pin IN and the rocking of ball M0
is without effect upon the thrust bar “6.
When the new balance of a bookkeeping op=
eration is to be drawn, the key it is pressed.
ance oi’ the account is first entered in one ma“
chine operation and then the old balance of the
upon a cam we of a slide I90, whose cam l9l
28, disposed, respectively, in the adding totalizer
tion, with the single di?crence that the old bal
contra-account in another machine operation.
This new balance may be eitherpositive or nega
A change in the procedure in posting to an
tive. ‘By depression 01’ this key the correspond
account and a contra-account or an account
ing side (plus or minus) of balance mechanism
owner occurs only in the posting of the debits
I is placed opposite the di?erential members
and credits, because in this case in‘ one and the
and the machine is set for total taking.
same machine operation both the account and
The total taking mechanism for the balance 15 the contra-account of the account owner are to
mechanism is described in the German Patent
be posted. Consequently in posting debits and
606,799 on page 3, line 78 to page 4, line 42.
credits there must be pressed one of the keys
The key I2 also acts by its pin l38 (Fig. 9).
25 or 26 and in addition one of the keys 2'! or
coacts with pin I92 of key It. By this device 20 key banks i or 2 and 3 or 5.
operation of key l3 appertaining to balance
Drawing a new balance of an account and a
mechanism II is prevented, while conversely by
contra-account is carried out in the same way as
depression of key l3 the key M is locked against
described in the previous part of this speci?ca~
tion with reference to drawing the new balance
A setting of key l2 also acts to select the proper
or a single account, with the sole difference that
column of the record sheet. For this purpose a
?rst the new balance of the account is drawn
slide I93 (Fig. 10) is mounted beside the key
and then the new balance or the contra-account.
bank '1 so as to be movable in counterclockwise
For better understanding of the present in
direction by the action of pin its or key it.
vention there will be more fully described debit
A nose I94 O11 slide H93 acts upon a lever i95, 30 and credit postings in which the account and
which has fixed to it an arm its connected to
the contra-account are simultaneously posted in
one machine operation.
a link I91. The other end of the link is articu
lated to a lever l98, which is rigidly listed to a
Operations of the machine in which an ac»
shaft I99 (Fig. 11). Upon the shaftv 899 there
count and a contra-account are simultaneously
posted are set up by pushing both a key in one
is also fixed a lever too, to which is connected
0. link 2M. The opposite end of this link is con
of the banks l or 2 and a key in one or“ the
banks 3 or t.
nected to a bell crank lever 20? rockably mounted
on shaft 66. A pin 2% ?xed to lever tilt’ (Fig. 5)
Depression of a key 26 or 2t of the key banks
projects into a fork 20E of a bail ?lth. This bail
l or a causes the selection of the corresponding
is rockably mounted upon shaft 659 and extends 40 debit totalizer in the manner previously den
scribed, while depression of a key 2'3 or 28 of
to the extreme right end of Fig. 5, where its
arm 206 is connected to a thrust bar 2t? guided
the key banks 8 or t causes the selection or the
by fork 2B8 upon pin ‘Edit. This pin is lined to
corresponding credit totaliaer.
the side wall 85. A lateral arm ‘2MB of thrust bar
20] coacts with a ?nger tilt of a bar EH2. A
recess M3 of the bar 20% engages over the upper
end of a lever 2%, which corresponds to the levers
1“, “M3 and ‘M9 and has a similar effect, only
with the di?erence that through the parts ‘ltd,
143, ‘its, it selects the new balance column of
the record sheet for printing.
By the operation of key it the release of the
machine is e?ected through parts‘ ltd-its (Figs.
10 and Ill). The shaft tilt has fixed to it a lever
284, which is rocked in clockwise direction by
depression of the key it, thereby pulling for
By mechanism to be presently described, the
setting of these two keys causes each of the re=
leasing keys 8 or to be effective for engaging
both balance mechanisms 1 and H, but for one
posite operation, that is, one positive and one
negative. That is to say, the key 8 sets the bat
. , ance mechanism i 101‘ positive operation and the
balance mechanism H for negative operation;
while the key has the reverse effect. Key it
has the same effect as key 8, while key it] has
the same effect as key
Since the blocking
mechanism its,
973 (Fig. do) would prevent
releasing of the machine when both debit and
credit keys in the banks l-il have been set, this
ward a link 2515, which has a slot lit at its rear
blocking mechanism is disabled and another one
end engaging over a pin til on bail 628. Clocin
is brought into play. The switching of the blocln
wise rocking of the bail 926 causes the release
mechanisms is performed by the previously
of the machine, in the manner previously de
double pawl
ltti, which is shifted
out of engagement with the pin Bill by the set“
A blocking device (not shown) may be pro
ting of a key in the banks i or ii and a key in
vided to block the keys t-ll when one of the
the banks 3 or t. The mechanism for this pur
keys it or as is pushed, while depression of the
keys 29 or so would set the machine for taking b5 pose will be described presently. When the pawl.
685 is moved out of the range of pin tell, the
sub-totals and end-totals from the totalizers and
pawl B86 is moved into the range of a pin
would block the keys ill-i3.
a lever 283 rockably mounted on shaft lit. The
In contrast to a sequence of operations in
upper end of lever 283 has ?xed to it a pin ‘2843
which entries are made of an old balance, one or
70 which stands opposite two blocking arms 285 and
more debits or credits, and the new balance of
286 extending from the respective blocking bars
a single account, a series of entries consisting
“3 and 2m. In order to free the pin 28132 the
of an old balance of an account and a contra=~
blocking arm ttil‘must be moved downward by
account, debits and credits of the account and
depression of a pin in. one of the banks l or 2'
the contra-account, and the new balance of the 76 and the blocking arm 2% must be moved upward
by depression of a key in one of the banksuse8 orthe4.
For switching the double pawl Hi5,
up or down will engage the balance mechanism II
with the dl?erential members, through the link
r58. Downward movement of the bar 268 will
arm 886 is connected by a pin Elli to a link 2851,
select the addition side of the balance mechanism
the upper end of which is articulated to an arm
II, by pulling rod 25a to the right, while upward
at the left end of a ball 2%. At the right end
movement of the bar 245 will simply cause the
of this bail, near the right-hand side wall til is
pin 268 to move to the left in slot 2%, leaving
an arm provided with a fork Z'lt engaging a pin
the balance mechanism H in position for engage
2?? on a bar 22$. This bar is supported by an
ment of the subtraction side.
arm 22s of a bail 226, rockably mounted on shaft
For the joint engagement of the balance
l28.— The aball
at its
to left
the end
an arm ex=
mechanism II and balance mechanism I the bar
265 is coupled to the bar 98 which controls the
tending arm of a bell crank lever 22!]. This bell
mechanism I and is controlled by the
crank lever is supported upon a pin 22l project
keys 8 and 9. For this purpose there is suspended
ing from an arm kid of a ball 2H3, integral with
ball Mill. The downwardly extending arm of hell 15 from the pin we on .bar 99 a link 23%, at the
lower end of which is a pin 235. The pin 233 on
crank lever 22s is connected by a link 2G6 and
the bar 2415 has suspended from it a latch 232
pin 26% with a downwardly extending arm 262 of
whose lower forked end 233 stands opposite the
bail 2M. As previously described the bail Mt is
pin 23-5. This latch is connected by a link 28E
rocked in clockwise direction by depression of a
to an arm sec of a bail 228 rockably mounted
key in either of the key banks l or 2 and bail
upon a rod ‘229. The other arm 22? of the ball
526i is rocked in the same direction by depression
is connected to the bar 22%, to which the move
or‘ a key in either of the key banks 3 or d. The
ments of the pin 222‘ on bell crank lever 22d are
two movements thus imparted to the pin 222 of
imparted through bail 2241. The combined
hell crank lever 22% are su?icient to bring the
movements of pin 222 caused by depression of
pawl £85 below the pin ltl' and to move the pawl
a key in rows l or 2 and a key in rows 3 or G is
R86 down to the level of pin 282.
to bring the latch fork 23!} into engage»
While the depression of a single key in the
ment with the pin
with the result that the
banks l-Ll determines which of the releasing keys
mechanism for controlling the balance mecha
or a may be operated, the depression of a debit
key and a credit key in the banks l-?l leaves both 30 nism II is operated simultaneously with that for
controlling the balance mechanism 1'. It will be
releasing keys is and 9 free for operation. Thus
noted that these controlling mechanisms are so
the selection of these keys will be dependent upon
related that when the addition side of the balance
the account of the account owner; that is to say,
mechanism I is selected the subtraction side of
if this account is to be charged the releasing
key 9 is pressed, while if it is to be credited the 35 the balance mechanism II is selected, and vice
releasing key 3 is pressed.
nected by a link 252 to an arm 2E5 ?xed to a
shaft 253, which serves for selection of the proper
side (plus or minus) of the balance mechanism It‘.
bail lid in clockwise direction; whereby its arm
W5 acts upon the link lit (Figs. 5 and 7).
In certain cases the plus or minus side of the
The mechanism for rendering the releasing
balance mechanism 11 and its engagement with
keys l3 and t individually capable of coupling
the di?erential members can be performed
both balance mechanisms I and II with the slider
directly by pressing one of the keys it or ill,
entlal mechanism is as follows:
whose pins Alt act upon a slide 2% coupled by a
For selecting the subtraction or addition side
bar 266 and bell crank lever 2'65 with the bar 285.
of the balance mechanism ll‘ and for coupling
By pressing the releasing key t the printing
the same with the differential mechanism, there
mechanisms are set to print in the credits column
are provided mechanisms similar to those for the
of the record sheets for the account in the man
selection and engagement of the balance mecha
ner previously described. As described in my co
nism I previously described with reference to
pending application Serial No. 226,467 the print
Figs. 6 and 5. Referring now to Figs. 8 and 5,
ing mechanism prints in the debits column of
there is rockably mounted upon the rod G718 a
the contra-account and the credits column of
bell crank lever 26?, the upwardly extending arm
of which bears a pin 2% engaging in a slot 239 50 the account simultaneously, or in the credits
column of the contra-account and the debits
at the right-hand end of a link
The leit=
column of the account.
hand and of this link is connected to a bell crank
_ The release or the machine operation by press»
lever 2st rockably mounted upon the shaft use.
mg the releasing key 8 takes place through the
The other arm of the bell crank lever 255 is con“
This selection is made through mechanism simi
lar to that previously described for the balance
parts 66, Hit, i211, i325 (Fig. '7), which turn the
Through the parts ill, H9, 1186, H33, H85,‘ H36
the lever 283 can be swung in clockwise direction,
mechanism 1. Returning to the bell crank lever 60 because, as previously described, the arms 285
and 286 of locking bars Midland 275 have ‘been
26?, its horizontally extending arm pivotally en
moved out of the range of pins 28% by the setting
gages a pin 2% fixed to a bar 2435. The pin 2%
of the debit and credit keys. Simultaneously the
stands isover
in mesh
an arm
with26Ea toothed
of a toothed
2st rock
square pin l2'l (Figs. 5 and 7) releases the lever
lZQ, so that under the pull of a spring (not
ably mounted upon a rod 25W. The sector 2% is
the releasing shaft lSt is rocked in clock
connected by a link 2258 to an arm 259 rigidly
wise direction.
fastened on shaft its. This shaft effects the en
If several postings are to be made to the same
gagement of the balance mechanism 11 with the
totalizer in succession, it is desirable to
di?erential members, through mechanism similar
to that previously described with reference to 70 retain the set totalizer keys 25-28 in their de
pressed position. For this purpose repeat keys
the balance mechanism 1. The sector 256 has a
32 (Figs. 1 and la) are provided, which prevent
rearwardly extending arm 255 connected by a
release of the depressed setting members
spring 252 to the arm 2M of sector 2%. The
25-28 at the end of a machine operation. Since
arm 255
to the
is held
bar 2115.
by the
spring against
of the bar
a pin
either 75 the setting members 25-28 may also remain "\
depressed position during “old balance” machine
operations and “new balance” machine operations,
precautions are taken to prevent the selection and
engagement of the corresponding debit or credit
totalizer in these operations, as well as the selec
tion of the debit and credit columns of the record
If both a key 26 and a key 28 are in their de
pressed positions, the pin 222 in bell crank lever
220 (Fig. 5) as previously described, is lowered by
two partial movements, whereby through bar 293
the pin 289 is brought in front of the ?nger 2?“.
Consequently neither the release key ‘29 nor the
sheets for printing, the setting of the special sign
release key 30 can be pressed. If only a key 26 is
for printing, and the advancement of the corre
depressed, or if only a key 28 is depressed, the pin
sponding item counters. The mechanisms for
289 is brought by the single partial movement op
suppressing the control of the debit and credit 10 posite notch 292, permitting depression of key 29
keys over the selection of the columns of the rec
or key 30. If only a key in bank 5 is depressed
ord sheets to be printed upon and the setting of
bar 293 is raised to bring notch 292 opposite pin
the special sign for printing have already been
289, but if a key 26, or a key 28, or both are de
explained. The mechanism for controlling the
pressed, the pin 289 moves down opposite ?nger
advancement of the item counter forms no part 15 29I and keys 29 and 30 are blocked. The effect
of the present invention.
is the same if a key of the bank 5 is depressed si»
In drawing a sub-total or an end-total by
multaneously with a key 26 or a, key 28.
means of keys 29 or 30, there may always be de
The pawl I80 (Fig. 5) which acts upon the re
pressed only one of the keys I 4-28, particularly
leasing mechanism in the registration of debits
one of the keys 25-28. For this purpose, a de
and credits is brought out of the range of pin
vice is provided which prevents the release of the
I8I, in registering old balances, in drawing new
machine when more than one of these keys is de
balances, and in drawing sub-totals or end-totals.
pressed. As previously described, a pin 222 (Fig.
For this purpose there is fixed to the pawl I80 a
5a) of the bell crank lever 220 drops for a cer
pin 3I0 which extends through slots 309 in each
tain distance upon depression of a key 26. Upon
of three bars 306, 30?, 308. The bar 306 is piv
the pin 222 is hung a bar 281, the lower end of
oted to an arm 33l at the left end of bail 333,
which is in the form of a fork 288. To this fork
which, as previously described, is rocked by op
288 is ?xed\a pin 289 which coacts with two fingers
eration of either of the keys 29 or 33. The bar
290 and 29I and an intermediate notch 292 of a
301 is connected to the pin 203 of hell crank lever
locking bar 293. The locking bar 293 is supported 30 202, which, as previously described, is rocked by
upon an arm 294 of a bail 295, which is under the
control of key bank 5 (keys I4-24) through a bar
296 (Figs. 4 and 5a). The bail is rockably
mounted upon rod 96. The bar 293 is connected to
either of the keys t2 or I3. The bar 308 is piv
otally connected to an arm 334 at the left end of
a bail 335 rockably mounted on shaft 971. A fork
339 at the right end of this bail engages pin 63,
an arm 291 mounted by its hub 298 upon a shaft 35 which is raised each time a key of the bank 3 is
299. By pressing a key 29 or 30 (Fig. 7), through
the parts I20, I2I, I25, I26, E15, I13, I17 (Figs.
5a and 51)), an arm 300 riveted to the bail H1 is
swung in clockwise direction. To the arm 300 is
operated, through mechanism previously de
Thus in each of these three kinds of
operations the ‘pawl I30 is disengaged and the
blocking mechanism associated with it is made
connected a bar 30I which bears on its upper end 40 inoperative.
a fork 302. With the fork 302 coacts a pin 303
The blocking assembly is inserted in the book
riveted to a bell crank lever 305. The latter is
keeping machine, which is mounted between the
rockably mounted upon shaft 299 and bears a pin
casing walls 596 of the machine frame. The ar
305 which engages in the fork 283 of bar 287.
rangement is such that the blocking assembly is
Since this blocking mechanism is only to be eifec 45 inserted beside the groups of totalizers oi the
tive on operations controlled by the keys 29, 30,
provision is made for disabling it during the other
operations of the machine. The fork 302 has an
opening 302a which normally allows the pin 303
bookkeeping machine and directly behind the set
ting ?eld consisting of the key banks I-Ii.
I claim:
1. In a bookkeeping machine, a pair of pre_
to slip out of the fork as the latter moves down 50 liminary setting members, a pair of secondary
ward when the bail ill is rocked in clockwise
setting members, a feeler, impelling means op
direction, as it is on each operation of a machine
erated differently by the respectve secondary set
ting members to impel said feeler along different
pin 303 there is provided on the bar 30l a pin 330
paths of movement, blocking means normally
connected by a link 33H to a bail 327i rockably 55 blocking both of said paths of movement and
mounted upon shaft I92. The bail 323 has at its
means whereby said blocking means are shifted
middle an arm 323 provided with a pin 325 en
by the respective preliminary setting members to
releasing key. To couple the fork 392 with the
gaging a fork 333 of a bell crank lever 323 rock
unblock said paths of movement of said feeler
ably mounted on shaft 299. A horizontally ex
tending arm of this bell crank lever straddles a 60
2. In a bookkeeping machine, a pair of pre
pin 323 mounted on one arm of a bail 332 rock
liminary setting members, a pair of secondary
ably mounted on shaft 37. A link 322 connects
setting members, a feeler, impelling means op
the pin 323 to one arm of a bell crank lever 32f
erated di?erently by the respective secondary set
rockably mounted on shaft 90. The other arm of
ting members to impel said feeler along different
this bell crank lever is connected by a link 329 65 paths of movement, blocking means normally
(Figs. 5 and 5a), similar to the link 93, to a slide
blocking both of said paths of movement, means
3I9 (Fig. 1) moved upward by either of the keys
29 or 30. This motion, through the mechanism
described, rocks the bar 39I to engage the over
hanging lip of fork 302 over the pin 303, so that 70
the latter will be moved downward by the rocking
of bail I‘I'I. By means of the described mecha
nism, when-a key 29 or 30 has been punched, the
whereby said blocking means are shifted by the
respective preliminary setting members to un
block said paths of movement of said feeler al
ternatively, a second feeler, impelling means op
erated by either of said secondary setting mem
bers to impel said second feeler along a certain
path, a second blocking means normally block
pin 289, lowered by depression of a key 26 or 28,
ing said path, means whereby the joint operation
is pressed into the notch 292 of bar 293.
75 of both of said preliminary setting members
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