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Патент USA US2045549

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J1me 23, 1936.
A. E. FREEDMAN ET AL
2,045,549
CONTINUOUS FILM PRINTING MACHINE
Filed Jan. 25, 1952 _
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CONTINUOUS FILM PRINTING MACHINE
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Patented June 23, 1936
2,045,549
UNITED STATES PATENT OFFICE
2,045,549
CONTINUOUS FILM PRINTING MACHINE
Alan E. Freedman and August Zimmermann, New
York, N. Y., assignors to De Luxe Laboratories,
Inc._. New York, N. Y.
Application January 25, 1932, Serial No. 588,670
16 Claims.
This invention relates to continuous ?lm print
ing machines as may be used in printing a posi
tive ?lm from negatives, or more speci?cally, to
improvements in printing machines permitting
(A
the printing of a positive ?lm simultaneously from
separate sound and picture negatives in either a
forward or a reverse sense and for the printing of
full frame pictures.
In the production of sound moving pictures, the
10 sound accompanying the scene may be recorded
on the same ?lm from a composite negative from
which the positive may be printed in the usual
way using separate picture and sound printing
lights. However, this method has many disad
vantages. Greater flexibility, and more accurate
results can be obtained by recording the sound
and photographing the picture on separate ?lms.
Printing the positive was then accomplished by
running the positive stock through a printer with
20 the sound negative and then through another
printer with the picture negative which neces
sarily involved double the time and labor in pro
ducing a positive ?lm.
It is, therefore, an object of this invention to
25 provide a continuous printer, compact in struc
ture, that will print a positive ?lm from separate
sound and picture negatives passing through the
printer in either a forward or reverse sense. After
passing through the printer in one sense, the
30 sound and picture negative, in this instance, can
be removed from the take-up position and placed
into the feed positions ready for a second run
without rewinding and in which case the negative
?lm travel will be in the reverse sense.
A further object of this invention is to provide
a printer that is capable in addition to the print
ing of a positive ?lm simultaneously from sepa
rate sound and picture negatives, of printing a
positive ?lm from a full frame picture negative.
40
It is also an object of this invention to provide
0: Cl
visual means for indicating the sense of ?lm travel
in the printing of sound and pictures or the print
ing only of full frame pictures.
Other objects and advantages relate to details
of the printer structure, the arrangement and
relation of the parts thereof, all as will be appar
ent from the following description, taken in con
nection with the accompanying drawings in
which:——
Figure 1 is an elevation view of an embodi
ment of our invention.
Figure 2 is a plan view of the printer shown in
Figure 1.
Figures 3 is a sectional View taken through line
3--3 of Figure 2.
(Cl. 95--'75)
Figure 4 is an enlarged elevation view showing
the ?lm feed apparatus, printing aperture and
?lm positions for printing the picture portion of a
?lm.
Figure 5 is an enlarged elevation view showing 5
the ?lm feed and printing apparatus and the ?lm
positions for printing the sound record portion of
a ?lm.
Figure 6 is a sectional view taken through line
6—6 of Figure 4.
Figure 7 is a sectional view taken through line
1-1 of Figure 9.
'
Figure 8 is a sectional view taken through line
8—8 of Figure 7.
'
Figure 9 is a sectional view taken through line 15
9—9 of Figure 7.
Figure 10 is a sectional view taken through line
l0—l0 of Figure 9.
Figure 11 is a sectional view taken through line
HM-II of Figure 5.
20
Figure 12 is a sectional view taken through line
l2—l2 of Figure 11.
Figure 13 is a sectional view taken through line
I 3—l3 of Figure 12.
Figure 14 is a sectional view taken through line
I4—l4 of Figure 2.
Figure 15 is a sectional view taken through line
l5—l5 of Figure 14.
Figure 16 is an elevation view of the control as
sembly.
30
Figure 17 is a sectional view taken through line
l'l_l1 of Figure 16.
Figure 18 is a longitudinal section view of the
signal box taken through line l8-I8 of Figure 1.
Figure 19 is a transverse section view of the
signal box through line l9—l9 of Figure 1.
Figure 20 is a plan View partly in section, of the
electrical switching apparatus, as viewed in the
plane of line 211-20 of Figure 4.
Figure 21 is a sectional view taken through line
2l-2l of Figure 20.
Figure 22 is a sectional view taken through line
22—22 of Figure 21.
Figure 23 is a diagrammatic view of the elec
45
trical switching circuit.
In the drawings, like characters of reference
will be used to indicate like parts.
In Figure 1, I designates a pedestal upon which
the printing machine is mounted. On top of
pedestal I is positioned a lamp chamber 2 for
housing a printing light 3. In the forward exten
sion 4 of the framework secured to chamber 2, is
a cylindrical chamber designated at 5, preferably
bored horizontally in a forward and rearward 55
2
2,045,549
direction and communicating radially with cham
ber 2 by means of a passageway 6.
Opposite passageway 6 in chamber 5 is located
the picture printing aperture 1 formed by a cir
cumferential channel cut through the wall of
framework 4, as shown at II in Figures Ll and '7.
a pin 52, a small roller 53 adapted to operate
along the inner edges of the V-shaped perfora
spaced peripherally toothed wheels 9 mounted on
tion 5!.
a spindle I9, is co-axially disposed within chamber
From Figure 9, it is apparent that when shifting
plate 50 in the position shown by the full lines, or 0
passageway B. The channel at I I is made slightly
wider than the width of the positive and negative
?lms so as to allow the same to pass over the
bottom thereof and assume the curvature of
wheels 9 while passing aperture 1.
‘The ?lm guide plates l2 on either side of aper
ture ‘l are placed tangentially to sprocket wheels
9 in the bottom of channel I! to guide the ?lms
properly to the driving sprocket. The width of
aperture 1 is determined, in this instance, by
means of two shutter members 8.
As previously pointed out in the objects of this
invention, the printer is adapted to handle nega
25 tive ?lms passing in front of the printing aper
tures in either sense; that is to say, forwardly
from beginning to end or in the reverse sense from
the end to the beginning. The sense of move
ment of the negative will then determine near
30 which edge of the ?lm the sound record is located.
In printing the picture portion, the sound rec
ord portion must be masked from the picture
printing light in order to prevent fogging. How
ever, since the printer is adapted to handle ?lms
CO 01 in either sense, the sound record portion will shift
position A, one roller 53 will be located in the apex
of perforation 5! while the other will be at the
extremity of one leg thereof. In this position of
shifting plate 56, mask 4| will be down or in a
position to properly mask aperture 7 and mask 40 ‘ LI
will be in the raised position, Now, if it is desired
to reverse the positions of masks 40 and 4|, shift
ing plate 59 is moved to the dotted position B and
consequently the roller associated with bar 33 will
carry mask {is down and the roller associated with °
bar 39 will bring mask 4! up. Perforation 5! may
be extended parallel to the direction of movement
of plate 59, as shown at 54, so that plate 59 may be
withdrawn farther than the full line position, or
to position C, thereby allowing mask 48 to remain ’ -
in the raised position and also raising mask 4|
adapting aperture l’ for the printing of a positive
from a picture negative not provided with a sound
track portion.
A cover plate 55 is provided to maintain shift- ?
ing plate 553 in position and also to protect the
shifting mechanism from dust and other foreign
matter. The usual aperture gate l3 having its
inner surface concaved to conform with the curva- I
ture of the ?lm passing over sprocket wheels 9 is “
provided to maintain the ?lms in proper engage
from one side to the other in accordance with the
sense of negative ?lm movement, making it neces
sary to provide a mask adjacent the inner edge of
ment with the sprocket teeth.
each sprocket wheel 9, only one of which will be
pivot at E5 so as to permit it to swing away from
effective at a time.
This mask arrangement and
its operating mechanism is shown in Figures 6
to ,10.
Upper shutter member 8 may be provided with
downwardly projecting ?anges Bl’, as shown in
Figure 8, each of which has a narrow and com
paratively deep channel 45 adapted to receive slid
ing bars 38 and 39. On the lower ends of these
bars and integral therewith, are located respec
tively, masking members 49 and 4 i, the widths of
which in a direction parallel to the spindle ii! are
substantially equal to the width of the sound track
portion of the ?lm. The ends of masks 4E} and 4!
are shaped to conform with the cross section of
aperture 1 between shutter members 8 at the
periphery of sprocket wheels 9 so that as either
mask is in operative position, that particular por
tion of the aperture will be completely blocked
against the passage of the printing light.
The lower sides of bars 38 and 39 are provided
with two spaced notches 42 and 43 adapted to
engage successively, spring-pressed dog 44 pivoted
in channel 45 by means of a pin 46 whereby the
masks are held in either the lowered or raised
position.
Obviously, to accomplish the desired
65 result, mask 40 must be down when mask 41 is
up, or vice versa.
In order to provide a simple shifting mechanism
for these members, bars 38 and 39 have been ex
tended through openings in the upper wall of
70 frame 4 and. are provided with hooked ends so as
to engage a clevis 47 pinned to sliding members
75
On the upper surface of slide members 48 near
the clevis connected end is secured, by means of
A ?lm drive sprocket comprising two axially
5 and axially aligned so that the space between
wheels 9 is in registration with aperture 1 and
60
above, operatively positioned in a recess in guard
member 49 is located a shifting plate 50, in this
instance provided with a V-shaped perforation 5|.
Aperture gate i3
is preferably mounted on arm I4 which is free to
aperture 1 to allow the threading of the ?lm over ’
sprocket wheels 9.
Positioned above chamber 2 is a second lamp
chamber l6 housing a printing light I’! for print
ing the sound record from a separate sound neg
ative. Opposite lamp I’! in the side of chamber
56 is an opening it communicating with a tapered
tubular connecting member H! which terminates
at casing 29. Member Hi and casing 20 may be
joined, as shown, by means of a threaded nipple
2i. Casing 20 at its opposite end may be pro 50
vided with a cylindrical chamber 22, the ends of
which are closed by ?anged sprocket wheels 23
in co-axial relation therewith and axially spaced
on a spindle 24 as shown in Figures 11 and 12.
The outside diameter of the cylindrical portion "7
of casing 29 is made substantially equal to the
base diameter of sprocket wheels 23 in order to
provide nearly frictionless movement of the ?lms
over the casing.
Two narrow radial printing
apertures 25 and 2B are provided in wall 2'! adja
cent the inner edge of sprocket wheels 23. Wall
2'! is e?ective in masking the picture portion of
the positive as the positive ?lm and the negative
sound ?lm move over sprocket wheels 23 past
The fact that two apertures J
are here provided, will permit the printing of a
apertures 25 and 26.
sound negative passing the apertures in either a
forward or a reversed sense.
It is, of course, to be understood that the sense
of movement of the sound negative will determine 7
near which edge of the ?lm the sound record is
located. A reversal of sense will shift the record
48. Sliding members 48 may be operatively
mounted in a guide member 49 secured to frame 4,
to the opposite edge.
as shown in Figure 10.
to provide a shifting mask for closing one of the
Transversely to sliding members 48 and directly
It is, therefore, necessary
sound printing apertures during the printing proc
"2,045,549
ess. For this purpose, mask 28 is provided in
the form of a concentric semi-cylindrical mem
ber having overturned edges to slidably engage a.
tongue andv groove arrangement along the edges
of wall 21.
Mask 28 may be shifted from side to side, as
shown in the dotted positions of Figure 11, by
means of an actuating lever 29 extending through
a slot opening in the lower portion of casing 20
10 and pivoted at this point by a screw 30. A brack
et 3| centrally secured to mask 28 and provided
~with a clevis and pin arrangement 32, serves as a
coupling means between the mask and actuating
lever 29.
It is self-evident from the drawings that the
bent con?guration of lever 29 within chamber 22
is necessary to clear sprocket wheel spindle 24.
The externally projecting end of lever 29 may be
pivoted through the medium of a spring toggle
arrangement to shifting arm 33 adapted to be
shifted from side to side.
It will be noted that lever 29 is pivoted by
3
in passageway l8. Adjacent plate 70 and secured
to coupling member [9 is provided a shutter mech
anism controlling the quantity of printing light
comprising two movable shutter members ‘H and
12 positioned in guide channels 14 and 15 and
threaded upon an adjusting screw 13. Adjust
ing screw 13 may be provided with a right-hand
ed screw thread for shutter ‘H and a left-handed
thread for shutter 12 whereby the distance be
tween shutter members may be adjusted by turn
ing screw 13 in either direction as desired.
In order to equalize the quantity of light fall
ing on apertures 25 and 26, an auxiliary shutter
member 16 is provided within casing 20 pivoted in
the center on an inwardly projecting boss 11.
The right hand side of shutter 16, as shown in
Figure 13, has an inclined surface 18. A spring
88 secured to the upper wall 8| at one end and to
shutter 16 at the other, rotates the shutter so
that portion 18 is in contact with the beveled point
of an adjusting screw 19.
By adjusting the screw '19 in or out, shutter 16
means of a thumb screw 34 to a slidably internally
will be rocked about its pivot so as to balance the
mounted block 35. Coil spring 36 applies a force
against lever 29 in line therewith, as long as the
latter is in the central position, as shown in ‘Figure
light directed toward the respective apertures 25
11.
Now, as soon as shifting arm 33 is moved to
either side, lever 29 will be forced out of its cen
tral position and urged by the action of spring
36 to the limit of its movement as determined
by the sidewise limit of movement of mask 28.
The end of arm 29 may be slotted at its pivotal
point with screw 34 so that arms 29 and 33 may
be quickly dis-engaged by forcing screw 34 against
the tension of spring 36 until the body of the
screw clears the end of the lever.
Shifting arm
33, in this instance, may be secured to shifting
plate 59, as shown in Figure 9, so as to effect the
simultaneous shifting of masks 4D and 4| with
that of mask 28. A sound aperturegate 58 is
provided for maintaining the negative sound ?lm
and the positive in close contact with sprocket
wheel 23.
.
Aperture gate 58 may be resiliently mounted on
a fogging head 59, as shown, the latter being
provided with chambers 60 and 6| in which are
housed fogging lights 62 and 63 respectively.
Aperture gate 58 is provided with two passages
64 and 65 respectively, in alignment with aper
tures 26 and 25. Passages 64 and 65 are con~
nected by passages 66 and 61 with light chambers
69 and BI .
'
It is now clear that the positive sound track
portion may be fogged by the energization of
either lamps 62 or 63 as conditions demand, for
the purpose of obviating a certain portion of the
sound record.
Lamps 62 and 63 may be controlled in any
well-known way as, for instance, by a switch as
00 shown at 68 actuated by a notch placed in the edge
of the negative sound ?lm. The selection of the
proper lamp so as to fog the proper portion of
the positive, may be accomplished by the use of
a selector switch I60 having a switch-actuating
arm [6| which may be associated with shifting
arm 33 whereby the selection of the proper masks
for both sound and picture will also make the
proper fogging lamp circuit connection.
Fogging head 59 may be provided with light
passages 69 leading from the light chambers 60
and 6! to the exterior and which may be covered
with colored glass so as to give the operator an
indication that the fogging lamps are in operative
condition. The printing light for the sound ?lm
is preferably diffused by a diffusing plate 10 placed
and 26.
The above description has dealt generally and
speci?cally with the apparatus units for expos
ing the positive ?lm to both the picture and sound
negatives. The arrangements of these units with
respect to each other and the associated appara
tus, as ?lm feed and guide equipment is of great
importance. In order to provide a compact
structure, the picture printing is operated in one
plane and the sound printing is accomplished in
an adjacent plane.
Since all views showing the relative positions
of the apparatus units are similar with respect
to arrangement, we can simply designate these
two' planes as the near and the far plane. Se
cured to pedestal I and frame member 4 is, in
40
this instance, a tubular framework 82 upon which
are mounted the reel ?anges and reel spindles for
holding the feed and take-up reels of the posi
tive stock and the picture and the sound nega
tives.
On the upper cross frame member 82 is mount
ed in the far plane, stock reel flange 83 and the
picture negative reel ?ange 84. In the near
plane is the reel ?ange 85 for the sound negative.
On the vertical frame member 82 in the near plane I; O
is mounted the take-up stock reel ?ange 86. On
the lower horizontal frame member 82 is mounted
in the near plane the sound negative take-up reel
?ange 81, and on the same member in the far
plane, the picture negative take-up ?ange 83. ,
The reel ?anges are all provided with reel spin
dles and reel guards of well-known construction
and need no further explanation.
The various feed and take-up sprockets, as
well as the take-up reels are driven by a train of
gears located within gear case 89 mounted, as
shown, on frame 4.
In Figure 3, 99 is the main
driving gear mounted on shaft 9! which extends
through both sides of gear case 89 having mounted
on the rear side a driving pulley 92 which may be
connected by a belt I29 to pulley I30 or‘ a driving
motor I3| mounted on a bracket I32 secured to
the side of frame 2.
On the front side of the gear case in the far
plane, is mounted on shaft 9| a pull sprocket 93
for feeding out the positive stock and the negative
picture ?lm, and in the near plane is positioned a
feed sprocket 23 which is the sound picture ex
posure sprocket. In mesh with gear 90 is an
idler gear 94 which meshes with gear 95 mounted
2,045,549
4
on shaft 96 extending to the front side of gear
case 89 and having mounted thereon in the near
plane a pull sprocket 91 for feeding out the neg
the negative ?lms are traveling through the
printer in the forward sense. The next word may
be “Backward” indicating that the negative ?lms
ative sound ?lm. A second idler gear 98 is pro
vided meshing with main driving gear 96 and
gear 99 mounted on sprocket shaft I0 to which
are secured sprocket wheels 9. Meshing with
are moving through the printer in a reverse sense
and the lower signal may be “Disc” or some sim
gear 99 is a smaller gear I60 mounted on shaft
is being printed.
Details of signal box I62 are shown in Figures
18 and 19. -A face plate I63 is provided having
three elongated apertures through which the sig
I6I extending to the rear of casing 89 and hav
10 ing mount-ed thereon the take-up reel driving
pulley I62.
Gear I63 is in mesh with gear I66 and is, in
turn, mounted on shaft I84 extending to the
front side of gear case 89 through the far plane
and into the near plane and upon which is mount
ed in the far plane, take-up sprocket H3 and in
the near plane, take-up sprocket I65 for driving
respectively the positive ?lm and the sound and
ilar indication meaning that the sound printing
is discontinued and that a full picture frame ?lm
nal indications above~rnentioned are made vis
ible. A ruby-colored glass plate I64 may be po
sitioned adjacent face plate I63 to prevent the
emanation of any light rays other than red. 81%—
nal letters may be stenciled in a suitable metal
plate I65 which is positioned directly in rear of
glass plate I64 so as to have each signal word or
picture negatives to their respective destinations
symbol in alignment with its respective aperture
to be hereafter explained.
in the face plate.
The interior of signal box IE2 is divided into
The printing of the positive picture portion
from a negative picture ?lm, is illustrated in Fig
ure 4. This printing process takes place in the
far plane. A positive ?lm I66 and the picture
negative I61 are placed in overlying relation and
feed from their respective reels from positions
83 and 84 through guide rollers I68, I69 and III]
over pull sprocket 93.
The ?lms now pass sep
arately through suitable tensioning devices indi
cated at III to guide rollers II2 onto driving
sprocket 6 past the exposure aperture 1 and
through take-up sprocket H3. The negative
picture ?lm I61 passes over guide roller I I4 onto
its take-up reel at 68. The positive ?lm I06, how
ever, upon leaving guide roller II4 moves over
from the far plane to the near plan-e and travels
upward to guide roller I I5 located on fogging head
56 Where it picks up the negative sound ?lm I I6,
as shown in Figure 5.
Negative sound ?lm H6 is fed from its reel at
40
85 to pull sprocket 91 aided by guide rollers H1
and I I8 from which it passes onto the sound ex
posure sprocket 23. The positive ?lm I66, after
passing guide rollers I I9 and I26 on fogging head
55, joins the negative sound ?lm I I6 and the two
three compartments by longitudinally extending
partition walls I66 and I61. Each compartment
is provided with a signal lamp, as indicated at
I69, I16 and HI, mounted in a suitable socket
I68. Indicating lamps I69, I16 and HI are con
trolled by switch 51 actuated by an actuating
arm 56 secured to shifting arm 33 by means of
a connecting link I12.
Switch 51 comprises contacts I13, I14 and I15 30
mounted on a suitable insulating block I16 and
which may be respectively connected to lamps
I69, I16 and HI. Contact ?ngers I11, I18 and
E19, insulatingly mounted at one end as shown,
to the frame of switch 51, are adapted to make “
contact respectively with, but are normally out
of contact with contacts I13, I14 and I15. These
contact ?ngers may be stamped from a single
piece of springmetal so as to provide a connect
ing base integral therewith which may be con
nected to a suitable source of potential for light
ing the signal lamps.
Lamps I69, I10 and I1I may have a common
return circuit to a source of energizing potential.
The successive engagement of the control ?ngers
are exposed by the sound printing light through
with their respective contacts, is accomplished by
plungers I80 extending through the wall of switch
either apertures 25 or 26. Films I66 and I I6 then
continue over guide rollers IZI to tensioning de
tacting with each contact ?nger.
pass in overlying relation over sprocket 23 and
vices IZZ onto take-up sprocket I65 guided by
rollers I23 and I24, and then to their respective
take-up reels at 86 and 81.
The take-up reels may be driven from pulley
I02 by means of a belt I25 passing over the re
spective reel pulleys I26, I21 and I28.
Thus it is
seen that the printing of a positive ?lm from sep
arate sound and picture negatives is accomplished
in one continuous operation through the printing
machine. The negative sound and picture ?lms
on the wind-up reels, after passing through the
printer, are immediately ready for the next run
casing 51 and have an insulated head I8I con
The portion
of plunger I86 extending to the exterior of switch .
casing 51 is adapted to engage a cam surface
I82 provided on switch lever 56, the latter being
pivoted at one end to the switch casing as shown
at I83. ‘Now, as the shifting arm 33 is moved
in order to place shifting plate 50 into one of ,
the three positions, say position A, switch arm
56 connected to arm 33 will be rotated about
pivot I83 and cause surface I82 to engage with
plunger I86 which is pressed inwardly against
the feed positions without rewinding.
contact ?nger I18 which, in turn, engages con
tact I14 to close the circuit to energize signal
lamp I10. Consequently, the shifting of arm
33 into positions B and C will respectively close
The sound track portion will, of course, be re
versed, but this condition is met in the printer, as
and HI.
with a new positive ?lm and may be placed in
previously described, by providing sliding masks
so that the negative ?lms may be run through in
either sense.
In order to give the operator of the printer an
T O indication of the sense of ?lm travel, a signal box
I62 is mounted on lamp chamber 2.
The face of
the signal box may be provided with three words
or other suitable indicia symbolical of the print
ing operation as, for instance, the upper signal
consists of the word “Forward” indicating that
the circuits to respectively energize lamps I69
As previously pointed out, the select-ion of the
proper fogging light for obviating desired por
tions of the sound record, is accomplished simul
taneously with the shifting of arm 33 to which is
connected actuating arm I6I of selector switch
I60. The wiring diagram of signal lamps I69,
I16 and HI and fogging lamps 62 and 63 is
shown in Figure 23 for the masks in position A.
Wires I84 and I85 may be connected to a suit
able source of potential for energizing the signal
23045545
lamps, as well as the fogging lamps. In position
maintains, by virtue of the anchoring stud’s po
A, current will flow from the source through wire
I 85, contact I14, lamp I10 and return through
wire I84.
The energization of lamp I10 indicates in sig
sition, control lever I33 in either the “on” or
“01f” position.
Another feature in connection with the control
nal box I62 that the masks in the sound and
picture printing apertures are set for the nega
tive ?lms to pass through the printer in the back
ward sense. At the same time, selector switch
I60 will be in position to make the energization
of fogging lamp 62 possible. Lamp 62, of course,
will not be energized until switch 68 is closed
system is the lock-out mechanism controlled by
the position of the sound and picture aperture
gates 53 and I3 respectively.
As previously described, sound aperture gate 58
is mounted on fogging head 59 which, in turn,
is hinged to lever I55 and pivoted to gear case 89 10
so that it is free to swing toward and away from
mined position along the edge of the sound nega
sprocket 23 which enables the positive and the
negative sound ?lms to be threaded into place.
The picture aperture gate is similarly construct
tive.
ed, as previously pointed out.
by the action of a notch placed in a predeter
15
5
Similarly, in position B, signal lamp I69
will be energized and fogging lamp 63 will be con
nected in circuit.
The energization of signal lamp I69 will give
a visual signal in the signal box that thermasks
20 are set for the negative ?lms to pass through
the printer in a forward sense.
_
the machine until both gates are closed, a lock
out system is provided which comprises a con 20
In like manner
necting rod I56 connecting fogging head 59 and
in position C, all connections to fogging lamps
arm I5, and a second rod I51 leading from arm
l5 to control shaft I34. The lower end of rod
I51 is supported in a radial guide I58 secured to
62 and B3 are broken and signal lamp I1l is
energized, indicating that the masks are in a
25 position to print a positive ?lm from a full pic
ture frame negative.
15
Starting the printing operation with either ap
erture gate open, would very likely destroy the
?lms. Then, in order to prevent the starting of
rods I38 and I93, the former connecting with
bearing I36 and is provided with a bayonet point
adapted to ?t into a detent I59 located in control
shaft I34.
Detent I59 is positioned so that rod I51 is in
registration therewith as control lever I33 is in
the “off” position. Under these conditions, rod
I51 is free to move downwardly also allowing rod
I 56 downward movement thereby permitting ap
erture gates I3 and 55 to be withdrawn. It is,
therefore, readily seen that when either or both
arm I40 pivoted on spindle I42 secured to bracket
I44 mounted on motor support bracket I32. Arm
aperture gates are open, rod I51 will lock control 35
shaft I34 in the “off” position.
The printing machine is put into operation by
. means of a control lever I 33 secured to the end
of control shaft I34 journaled in bearing I36
located in a projecting portion of pedestal I.
On the opposite end of control shaft I34 is
secured a crank arm I35. Journaled to crank
arm I3 by means of a crank pin I31, are control
I49 is provided with a belt-tightening idler pulley
This construction also prevents aperture gates
I4I adapted to engage belt I29 as arm I40 is
urged downward due to a counterclockwise rota
I3 and 58 from being open while the machine is
in motion since in the “on” position of lever I33,
detent I59 is rotated out of registration with the
40 tion of control shaft I34.
A stationary idler pulley I43 may also be used
end of rod I51, as shown in the dotted position
on spindle I42 to provide more belt contact sur
face on motor pulley I30. Thus it is seen that
of Figure 17.
the mechanical mechanism is put into motion by
tightening driving belt I29 which transmits the
motion of motor I3l to driving pulley 92.
Uniform motion may be secured of all sprockets
ticular embodiment of our invention as being il
lustrative thereof, we do not wish to limit our
selves to. details of the precise structure shown
or to the arrangement of the various parts there
of, as many changes and modi?cations may be
by means of a ?y wheel I45 mounted on shaft
9I adjacent driving pulley 92.
The inertia of
50 ?y wheel I45, however, will cause the sprockets
to continue to rotate after the driving motor I3I
is uncoupled by loosening belt I29.
In order to bring the mechanism to rest quick
ly, a breaking mechanism is provided comprising
a brake shoe I46 acting on the rim of fly wheel
I45 and actuated by means of a brake lever I41
pivoted intermediate its ends at I48 to gear case
89. One end of brake lever I41 may be secured
to brake shoe I46 and the other end connected to
60 control rod I39. Rod I39 may be provided with
a spring-tcnsioning device I49 effective in thrust
as control lever I33 is turned to the off position
releasing the driving belt tension and, at the
same time, forcing brake shoe I46 against the
65 rim of ?y wheel I45.
Rod 138 may also be provided with a certain
amount of ?exibility by spring-tensioning ar
rangement, as shown at I50, Figures 3, 14 and 15
which becomes effective in tension. The struc
70 tures I49 and I50 being well-known, need no
further explanation.
Support bearing I36 may be provided with
stops I5I and I52 for limiting the movement of
control shaft I34. I A coil spring, I53 suspended
from crank pin I31 to an anchoring stud I54
_ Although We have shown and described a par
45
made without departing from the spirit and scope -
of the appended claims.
We claim:
50
‘ l. A continuous ?lm printing machine compris
mg a base, a frame including a cylindrical por
tion having a circumferentially positioned expo
sure aperture therein, a picture exposure sprocket
comprising peripherally toothed wheels axially
spaced the width of said aperture and co-axially
mounted within said cylindrical frame portion,
means for moving a negative film having a picture
record thereon and a positive in overlying rela
tion over said exposure sprocket, means for expos
ing said ?lm through said aperture, means for
alternately masking a portion of said aperture
adjacent the inner edge of said sprocket wheels,
a cylindrical open end casing having two circum
ferentially positioned exposure apertures extend~
ing from said frame, a sound exposure sprocket
comprising peripherally toothed wheels axially
spaced and positioned co-axially in the ends of
said casing, means for moving a negative ?lm hav 70
ing a sound record thereon and said positive ?lm
in overlying relation over said sprocket, means
for exposing said last-named ?lms through either ‘
one of said apertures, means for masking either
of said apertures and means for simultaneously
6
2,045,549
controlling said picture aperture and said sound
ative picture ?lm and a positive ?lm are adapted
aperture-masking means.
to move in overlying relation and two laterally
spaced sound exposure apertures past which are
subsequently adapted to move, a negative sound
2. A continuous ?lm printing machine compris
ing a base, a frame including a cylindrical por
tion having a circumferentially positioned expo
sure aperture therein, a picture exposure sprocket
comprising peripherally toothed wheels axially
spaced the width of said aperture and co-axially
mounted within said cylindrical frame portion,
10 means for moving a negative ?lm having a picture
record thereon and a positive in overlying rela
tion over said exposure sprocket, means for ex
posing said ?lm through said aperture, means for
alternately masking a portion of said aperture
15 adjacent the inner edge of said sprocket Wheels,
a cylindrical open end casing having two circum
ferentially positioned exposure apertures extend~
ing from said frame, a sound exposure sprocket
comprising peripherally toothed Wheels axially
20 spaced and positioned co-axially in the ends of
said casing, means i or moving a negative ?lm hav
ing a sound record thereon and said positive ?lm
in overlying relation over said sprocket, means
for exposing said last-named ?lms through either
one of said apertures, means for masking either
of said apertures, and means for simultaneously
controlling said picture and said sound aperture
masking means.
3. In a continuous ?lm printing machine hav
ing a picture exposure aperture past which a neg
ative picture ?lm and a positive ?lm are adapted
to move in overlying relation and two laterally
spaced sound exposure apertures past which are
subsequently adapted to move, a negative sound
35 ?lm and said positive ?lm in overlying relation,
means for alternately masking portions of said
picture exposure aperture, means for alternate
ly masking said sound exposure apertures, means
for simultaneously controlling said sound and said
picture aperture masking means, and means con
trolled by said last-named means for indicating
the position of said masking means.
4. In a continuous ?lm printing machine hav
ing a picture exposure aperture past which a neg
45 ative picture ?lm and a positive ?lm are adapted
to move in overlying relation and two laterally
spaced sound exposure apertures past which are
subsequently adapted to move, a negative sound
?lm and said positive ?lm in overlying relation,
?lm and said positive ?lm in overlying relation,
means for masking a narrow portion adjacent
either edge of said picture exposure aperture,
means for masking said sound exposure aper
tures, control means for alternately actuating said
picture aperture masking means and for render 10
ing said picture aperture masking means ineffec
tive, additional control means actuated simul
taneously with said ?rst-named control means for
alternately actuating said sound aperture mask
ing means, signal lamps for indicating said mask 15
ing positions, and means actuated by said control
means for controlling said signal lamps.
'7. In a continuous ?lm printing machine hav
ing a picture exposure aperture past which a
negative picture ?lm and a positive ?lm are 20
adapted to move in overlying relation and two
laterally spaced sound exposure apertures past
which are subsequently adapted to move, a neg
ative sound ?lm and said positive ?lm in overly
ing relation, means for masking a narrow por 25
tion adjacent either edge of said picture ex
posure aperture, means for masking said sound
exposure apertures, control means for alter
nately actuating said picture aperture masking
means and for rendering said picture aperture 30
masking means ineffective, additional control
means actuated simultaneously with said ?rst
named control means for alternately actuating
said sound aperture masking means, signal lamps
for indicating said masking positions, means
actuated by said control means for controlling
said signal lamps, means for alternately fogging
portions of said positive ?lm underlying said
sound printing apertures, and means controlled
by said mask actuating control means for ren
tions of said positive ?lm underlying a masked
sound printing aperture.
8. In a continuous ?lm printing machine hav
ing a picture exposure aperture past which a 45
negative picture ?lm and a positive ?lm are
adapted to move in overlying relation and two
laterally spaced sound exposure apertures past
which are subsequently adapted to move, a neg
means for alternately masking a narrow portion
ative sound ?lm and said positive ?lm in overly
adjacent either edge of said picture exposure ap
erture, means for alternately masking said sound
ing relation, means for masking a narrow por
exposure apertures, means for simultaneously con
trolling said sound and said picture aperture
55 masking means, and means controlled by said last
named means for indicating the position of said
masking means.
5. In a continuous ?lm printing machine hav
ing a picture exposure aperture past which a neg
60 ative picture ?lm and a positive ?lm are adapted
to move in overlying relation and two laterally
spaced sound exposure apertures past which are
subsequently adapted to move, a negative sound
?lm and said positive ?lm in overlying relation,
65 means for alternately masking a narrow portion
adjacent either edge of said picture exposure ap
erture, means for alternately masking said sound
exposure apertures, means for simultaneously
controlling said sound and said picture aperture
70 masking means, signal lamps for indicating said
masking positions, and means actuated by said
last-named means for controlling said signal
lamps.
6. In a continuous ?lm printing machine hav
75 ing a picture exposure aperture past which a neg
40
dering said fogging means inoperative for por
tion adjacent either edge of said picture exposure
aperture, means for masking said sound exposure
apertures, control means for alternately ac
tuating said picture aperture masking means 55
and for rendering said picture aperture masking
means ineffective, and additional control means
actuated simultaneously with said ?rst-named
control means for alternately actuating said
60
sound aperture masking means.
9. In a continuous ?lm printing machine, a
picture exposure aperture past which a negative
picture ?lm and a positive ?lm are adapted to
move in overlying relation, two laterally spaced
sound exposure apertures laterally o?set with 65
respect to said picture exposure aperture past
which are subsequently adapted to move a neg
ative sound ?lm and said positive ?lm in over
lying relation, means for alternately masking
portions of said picture exposure aperture, means 70
for alternately masking said sound exposure
apertures, and means for simultaneously control
ling said sound and said picture aperture mask
ing means.
10. In a continuous ?lm printing machine, av 75
2,045,549
picture exposure aperture past which a negative
picture ?lm and a positive ?lm are adapted to
move in overlying relation, two laterally spaced
sound exposure apertures laterally offset with
respect to said picture exposure aperture past
which are subsequently adapted to move a neg
ative sound ?lm and said positive ?lm in over
lying relation, means for alternately masking
portions of said picture exposure aperture, means
for alternately masking said sound exposure
apertures, means for simultaneously controlling
said sound and said picture aperture masking
means, and means controlled by said last-named
means for indicating the position of said mask
15 ing means.
11. In a continuous ?lm printing machine,
means for printing a picture negative on to a"
positive ?lm including a picture exposure aper
ture, means for subsequently printing a sound
20 negative on to said positive ?lm including two
laterally spaced sound exposure apertures, said
sound printing means being displaced laterally
with respect to said picture printing means,
means for shifting said positive ?lm edgeWise
25 during the interval between printings, means
for alternately masking portions of said picture
exposure aperture, means for alternately mask
ing said sound exposure apertures, and means
for simultaneously controlling said picture and
30 said sound masking means.
12. In a continuous ?lm printing machine,
means for printing a picture negative on to a
positive ?lm including a picture exposure aper
ture, means for subsequently printing a sound
35 negative on to said positive ?lm including two
laterally spaced sound exposure apertures, said
sound printing means being displaced laterally
with respect to said picture printing means,
means for shifting said positive ?lm edgewise
during the interval between printings, means for
alternately masking portions of said picture ex
posure aperture, means for alternately masking
said sound exposure apertures, means for simul
taneously controlling said picture and said sound
45 masking means, and means for indicating the
position of said masking means.
-
13. In a continuous ?lm printing machine,
means for printing a picture negative on to a
positive ?lm including a picture exposure aper
ture, means for subsequently printing a sound
negative on to said positive ?lm including two
laterally spaced sound exposure apertures, said
sound printing means being displaced laterally
with respect to said picture printing means,
55 means for shifting said positive ?lm edgewise
during the interval between printings, a masking
member positioned adjacent either side of said
picture exposure aperture movable at will into
and out of operative position, a sliding mecha
60 nism for controlling the position of said mask
ing members, a sound aperture masking mem—
ber slidably adapted to alternately cover said
sound exposure apertures, an actuating lever
therefor, and a mechanical linkage between said
65 sliding mechanism and said actuating lever for
simultaneously controlling the positions of said
picture exposure masks and said sound exposure
masks.
14. In a continuous ?lm printing machine,
means for printing a picture negative on to a
positive ?lm including a picture exposure aper
ture, means for subsequently printing a sound
negative on to said positive ?lm including two
laterally spaced sound exposure apertures, said
sound printing means being displaced laterally
with respect to said picture printing means,
means for shifting said positive ?lm edgewise
during the interval between printings, a masking 10
member positioned adjacent either side of said
picture exposure aperture movable at will into
and out of operative position, a sliding mecha
nism for controlling the position of said masking
members, a sound aperture masking member 15
slidably adapted to alternately cover said sound
exposure apertures, an actuating lever therefor,
a mechanical linkage between said sliding mech
anism and said actuating lever for simultaneous
ly controlling the positions of said picture ex 20
posure masks and said sound exposure masks,
and an electrically energized system including
a switch controlled by said mechanical linkage
for indicating the position of said masks.
15. In a continuous ?lm printing machine hav 25
ing a picture exposure aperture past which a
negative picture ?lm and a positive ?lm are
adapted to move in overlying relation and two
laterally spaced sound exposure apertures past
which are subsequently adapted to move, a neg 30
ative sound ?lm and said positive ?lm in over
lying relation, a masking member positioned
adjacent either side of said picture exposure
aperture movable at will into and out of opera
tive position, a sliding mechanism for control 35
ling the position of said masking members, a
sound aperture masking member slidably adapt
ed to alternately cover said sound exposure aper
tures, an actuating lever therefor, and a me
chanical linkage between said sliding mecha
nism and said actuating lever for simultaneously
controlling the positions of said picture exposure
masks and said sound exposure masks.
16. In a continuous ?lm printing machine hav
ing a picture exposure aperture past which a
negative picture ?lm and a positive ?lm are
adapted to move in overlying relation and two
laterally spaced sound exposure apertures past
which are subsequently adapted to move, a neg
ative sound ?lm and said positive ?lm in overly
ing relation, a masking member positioned adja
cent either side of said picture exposure aperture
movable at will into and out of operative posi
tion, a sliding mechanism for controlling the
position of said masking members, a sound aper 55
ture masking member slidably adapted to alter
nately cover said sound exposure apertures, an
actuating lever therefor, a mechanical linkage
between said sliding mechanism and said actuat
ing lever for simultaneously controlling the posi 60
tions of said picture exposure masks and said
sound exposure masks, and an electrically en~
ergized system including a switch controlled by
said mechanical linkage for indicating the posi
tion of said masks.
65
ALAN E. FREEDMAN.
AUGUST ZIMMERMANN.
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