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Патент USA US2284884

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June 2, 1942.
Filed Sept. 25, 1959
. 2 Sheets-Sheet 1
Karl MQ'H'S vl'aborg
June 2, 1942.
Filed Sept. 25, 19:59,
~ /6
2 Sheets-Sheet 2'
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Kar! Ma++s Vl'a berg
Patented June 2, 1942
Karl Matts-Vigborg, Stockholm, Sweden, assignor
to Kooperativa Fiirbundet Fiirening U. P. A.,
Stockholm, Sweden
Application September 25, 1939, Serial No. 296,379
In Sweden August 31, 1938
2 Claims.
(Cl. 235-437)
The present invention relates to a device in
cash registers, bookkeeping and calculating ma—
chines of the kind provided with amount or
i2 rigidly united with the frame of the machine,
said member strives through the action of a spring
54‘ extending between said pin H and a pin l3
?gure key banks and one or more salesmen’s or
on the member to assume the position shown in
transaction key bank. One object of the inven Ci Figures 3 and 6. In the plate l2 there are fur
tion is to produce a simple and reliable device
ther secured cylinder or Yale locks I5. To the
for locking by means of a removable key the
inner ends of the locking cylinders l6 there are
depressable keys of each salesman’s or transac
?xed pins or projections l1. When the mem
bers 8 and the locking cylinders l8 assume their
tion key bank.
Another object is, in a device of this kind, to
provide means for preventing locking of the keys
oi a key bank, as long as any key in said bank
is depressed.
Still another object is to produce a cash regis
positions shown in Figures 3 and 6, in which po
sitions the keys cooperating with the locks can
be removed, each of the pins ll rests against one
ter of this type in which the key bank locks and .
the zeroizing lock are arranged for selective op
eration, so that the zeroizing mechanism can
function only when the key banks are locked
and vice versa.
56 is rotated in the direction indicated by an ar
edge E8 of a recess i9 made in the respective
member. A rocking outwards of the respective
plate 4 is thus impossible, unless the respective
locking cylinder i6 is brought out of locking
When this is to take place the locking cylinder
One embodiment of the invention is illustrated 20 row in Figure 3. The pin ll will now cooperate
on the accompanying drawings, in which
with the edge 20 of the recess it, said edge serv—
Fig. l is a front view and
ing as cam or guide surface, the respective mem
Fig. 2 is a side view of a device according to the
Figures 3, 1i and 5 show details of the device
assuming various positions and
Figures 6 and 7 show on a larger scale sec
tions on the lines VI—VI and VII-VII in
Figures 3 and 4 respectively.
Figure 8 is a detail view of the interlock slide. 7
On the drawings the salesmen’s or transaction
key bank I is provided with eight keys 2 divided
into two groups, the keys of the group 3A being
intended for actuation by one salesman and the
form a rocking movement away from the key
shanks and ?nally reach the inactive position
shown in Figures 4 and 7. In this position the
pin H on the locking cylinder will prevent the
member 8 from being returned to the initial posi
tion by the spring (4. The keys may now, with
out being prevented by the rail 4, be depressed,
and Figure '7 shows how the pin 6 of a depressed
key has passed the free edge of the plate 4.
salesman. In order to give each salesman a pos
The retaining of the keys in the depressed posi
sibility of locking his keys, 1. e. to prevent a de
tion is provided for by the common locking rail
pression of the same, it has been arranged as
22, only visible in Figures 6 and 7.
In order that a salesman shall not be able to
Along each of the key groups 3A, 3B there 40 lock his keys before all keys have resumed their
extends a plate 4, one edge of which is turnable
inactive initial positions the member 8 has a
around a shaft 5 mounted in the key bank
striking surface 2|, positioned relatively to the
(Figures 6 and 7). The free edge of the plate 4
turning centre [6 of the locking cylinder in such
may thus be rocked away from and towards the
a way that the pin H, as is shown in Figure 5,
respective key shanks, the latter being provided 45 strikes against said surface before the locking
with pins or projections 6. These pins are
cylinder has reached the position that allows re
adapted to cooperate with the free edge of the
moval of the key. In this position the spring I4
plate 4, when the same assumes its position
is prevented from returning the member 8 and
shown in Figure 6 i. e. rocked towards the key
the plate 4 to their initial positions, since the
shanks, and to prevent a depression of the keys. 50 plate 4 abuts against the pin 6 of the depressed
To enable a locking of the plate 4 in this key
key 2, as indicated with dot-dashed lines in
Figure 7.
locking position there is formed a projection 1
on the plate, which projection enters a slot 9 in a
In the embodiment shown on the drawings
member 8. The latter is provided with a notch
there is between the two locks serving for lock~~
l0 entered by a pin II, which is ?xed'to a plate 55 ing the salesmen’s or transaction keys at third
keys of the group 3B for actuation by another
ber being thereby against the action of the spring
id displaced in the direction indicated by an
arrow in Figure 6. At the displacement of the
member 8 the corresponding plate 4 will also per
lock 23, by means of which a member ‘24 united
with the zeroizing device of the machine may be
actuated. Since, for several reasons, the sales
be able to enter amounts on another salesman’s
keys. It is, however, of no less importance that
the salesmen shall not be able to lock their keys
men’s or transaction keys should be locked dur
until all keys have returned to their inactive posi
ing the zeroizing, said device is constructed in 5 tions and that the person performing the zeroiz
such a Way that it is impossible to insert a key
ing shall not have any possibility of actuating the
into the lock 23 before the keys have been re
moved from the locks l5, i. e. before the keys 2
salesmen’s or the transaction keys.
Several embodiments are, of course, possible
have been locked. ' For this purpose there is pro
within the scope of the invention and the device
vided a slide 25 behind the locks l5 and the lock 10 may advantageously be modi?ed in order to cor
23. This slide is provided with a guide‘ slot 26
respond to various demands in various machines
and three semicircular openings 21, 28 and 29
without giving up the idea upon which the in
(Figure 8), said openings being positioned in
vention is based.
such a way that, when the slide assumes the po
Having now described my invention, what I
sition shown in Figure 1, the keys corresponding 15 claim as new and desire to secure by Letters
to the locks 15 may be inserted far enough to
Patent is:
enable a turning of the locking cylinders. The
1. In a cash register including at least one
inner end portions of the keys then enter the re
'salesman’s or transaction key bank having a plu—
rality of depressible keys, a rockable member
cesses 21, 29 of the rai1'25, the shape of said re
cesses allowing a turning of the respective keys.
hinged on an axis parallel to said key bank, said
member having an edge portion extending along
The recess 28, on the other hand, is, when the
slide 25 assumes the position shown in Figure 1,
said key bank and being rockable into and out of
the path of a portion of each key in said key
located beneath the key-hole of the lock 23.
The key to said lock cannot, therefore, be in
bank, resilient means urging said member into a
serted far enough to enable a turning of the
locking cylinder. Thus, no zeroizing can be ef
fected when the portions assume the positions
shown in Figure 1.
If, however, the keys are removed from the
locks .15, it will be possible to move the slide 25 1
from the position shown in Figure l and upwards
until the guide pin 30 in the guide slot ‘12$ strikes
against one end of said guide slot. The slide
then assumes such position that the recess 28 al
lows an insertion of the key into the lock 23 far
enough to allow a turning of the locking cylinder.
When the slide 25 assumes this position it is,
however, impossible to insert any of the keys of
the locks is to the necessary extent.
In order to prevent a zeroizing of the totalizers
key locking position in which its edge projects
into the path of said key portions, a locking de
vice to be operated by a removable key, and a re
ciprocable link connected with said member and
positively cooperating with a movable portion of
said locking device to rock said member into a
position in whichrsaid keys are freed for depres
sion when said locking device is unlocked and to
prevent locking of said locking device when said
rockable member is not in its key locking position,
each key including a portion disposed in the path‘
or" a portion of said rockable member when said key
is depressed, whereby said rockable member cannot
be restored to its key locking position and said
locking device cannot be locked as long as any
key in said key bank is depressed,
of the machine, unless the person performing
said operation has ?rst made it possible to ob
2. In a cash register including at least one
salesman’s or transaction key bank having a plu
serve the totalizer or totalizers, the slide 25 is
rality of depressible keys, an elongated plate
provided with a projection 31 serving as a ?nger
rockable about an axis parallel to its longitudinal
edges and to said key bank into and out of a key
Said projection 31 is of such shape that,
when the slide 25 assumes the position shown in
locking position, resilient means urging said plate .
Figures 1 and 2, the projection will be located
a cover 33 covering the totalizer or totalizers, said
cover being preferably hinged and lockable. The
into its key locking position, each'key having a
shank carrying a projection adapted to cooperate
with a longitudinal edge of said plate to prevent
depression of the key when said plate is in its
key locking position and with one of the plate
slide 25 cannot, consequently, be displaced from
its position shown in Figures 1 and 2 until the
plate to its key locking position while said key
between the edges that are formed by a station
' ary portion
of the casing of the machine and
surfaces when an effort is made to return the
cover 33 has been opened and the tctalizer or
totalizers have been made visible.
is depressed, a locking device to be operated by a
removable key, and a reciprocable link connected
As will be clear from the above the invention
with said member and positively cooperating with
does not only offer a simply constructed, space
a movable portion of said locking device to‘ rock
saving and reliable locking device for the sales
said plate into a position in which said keys are
men’s or the transaction keys, but the present
freed for depression when said locking device is
device prevents also such false and injurious op 60 unlocked and to prevent locking of said locking
erations as are caused in earlier machines, often
device when said plate is not in its key locking
only due to lacking attention, in which machines
position, whereby said locking device cannot be
looked as long as any key in said key bank is
there is no mechanical devices at all for prevent
ing such false operations. Especially in cash
registers that are used by several salesmen it is of 65
special importance that one salesman shall not
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