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Патент USA US2114608

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April 19, 1938.
E. ROSS
2,114,608
TALKING MOTION PICTURE APPARATUS
Filed March 22, 1954
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INVENTOR
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_April 19, 1938.
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E4 ROSS
2,114,608
TALKING MOTION PICTURE APPARATUS
Filed ,March 22, 1934
17 Sheets-Sheet 2
INVENTOR
EQNEST Poss
BY
ATTORNEY
April 19, 1938.
E; Ross
2,114,608
TALKING MOTION PICTURE APPARATUS
Filed March 22, 1934
17 Sheets-Sheet 3
.
INVENTOR
EPNEST Poss
ATTORNEY
April 19, 1938.
2,114,608
E. Ross
TALKING MOTION PICTURE APPARATUS
Filed March 22, 1934
17 Sheets-Sheet 4
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INVENTOR
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ATTORNEY
April 19, 1938.
2,1 14,608
E. ROSS
TALKING MOTION PICTURE APPARATUS
17 Sheets-Sheet 5
Filed March 22, 1934
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April 19, 1938.
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TALKING MOTION PICTURE APPARATUS
Filed March 22, 1934
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ATTORNEY
April 19, 1938.
E. ROSS
2,114,608
TALKING MOTION PICTURE APPARATUS
Filed March 22, 1954
1'? Sheets-Sheet 7
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INVENTOR
EQ/vEaT Poss
' BY
ATTORNEY
April 19, 1938.
2,1 14,608
E. ROSS
TALKING MOTION PICTURE APPARATUS
Filed March 22, 1934
17 Sheets-Shaw; 8
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INVENTOR
EPA/EST Poss
BY pVfW
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April 19, 1938.
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2,114,608
TALKING MOTION PICTURE APPARATUS
Filed March 22, 1934
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April 19, 1938.
E. ROSS
2,114,608
TALKING MOTION PICTURE APPARATUS
Filed March 22, 1954
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17 Sheets-Sheet 10
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INVENTOR
EPNEST Poss
ATTORNEY
April 19, 1938.
2,1 14,608
E. Ross
TALKING MOTION PICTURE APPARATUS
1'7 Sheets-Sheet 11
Filed March 22, 1934‘
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INVEHTOR
' ERNEST Poss
BY
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ATTORNEY
April 19, 1938.
E, Ross
2,114,608
TALKING MOTION PICTURE APPARATUS
Filed March 22, 1934
17 Sheets-Sheet 12
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INVENTOR
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BY
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April 19, 1938.
2,1 14,608
E. ROSS
TALKING MOTION PICTURE APPARATUS
Filed March 22, 1934
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Filed March 22, 1934
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INVENTOR
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BY
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April 19, 1938.
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2,114,608
TALKING MOTION PICTURE APPARATUS
Filed March 22, 1934
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ATTORNEY
April 19, 1938.
2,114,608
E. ROSS
TALKING MOTION PICTURE APPARATUS
Filed March 22, 1954
17 Sheets-Sheet l6
INVENTOR
EPNEST Poss
BY
ATTO R N EY
April 19, 1938.
2,1 14,608
E. ROSS
TALKING MOTION PICTURE APPARATUS
Filed March 22, 1934
17 Sheets-Sheet l7
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2,114,608
Patented Apr. 19, 1938
UNITED “STATES PATENT OFFICE
2,114,608
TALKING MOTION PICTURE APPARATUS ‘
Ernest Ross, Richmond Hill, N. Y., assignor to
United Research Corporation, Long Island City,
N. Y., a corporationjof Delaware
‘
Application March 22, 1934, Serial No. 716,808
9 Claims. (Cl. 88—16.2)
This invention relates to a combination sound
and motion picture projector apparatus, speci?
‘cally designed to run standard sixteen millimeter
or other narrow width ?lm carrying both the
5 pictures and a sound-on-film record track, for
the production of talking or other sound-accom
panied motion pictures in the home and for edu
cational or industrial sound picture projection
generally.
absence of ?lm at a particular point in the ap
paratus.
While providing for the operations before men
tioned, another object of ‘the invention is to
mount the ?lm supply and take-up reels adjacent 5
to each other whereby they may be conveniently
handled by the operator. This is accomplished
by arranging for the entrance and exit of the ?lm
with respect to the apparatus at closely adja
cent points, the hand-operated device referred to 10
The invention further relates to the provision
of an arrangement for automatically threading - above being positioned outside of or remote from
the sound and picture ?lm through the picture“ that portion of the apparatus between the points
projector and the sound reproducer and to the of entrance and exit of the ?lm.
A further object of the invention is to reverse
coordination therewith of an arrangement for
the ?lm through‘ the apparatus in order that 16
controlling
the
application
of
electrical
power
to
16
the apparatus and to the further coordination any desired picturev‘on the ?lm may be brought
with the self-threading feature and the power back in front of the projector for projection as a
still picture or for repetition as a motion picture.
circuit control of an arrangement for automati
The invention provides for an improved con
cally disconnecting the power circuit in the
absence of ?lm in the apparatus, due either to struction and arrangement of the component 20
parts, including the ?lm picture projector mecha
20 breakage of the ?lm or to all of the ?lm being
nism and the film sound record advancing and
on the take-up reel.
The self-threading feature involves the use of translating mechanism, within a single housing
?lm guiding members and loop formers which unit which may be assembled with other com
ponent units to form a compact multiple-unit 25
are movable in one position to accomplish self
25
threading, and into another position to permit sound-picture projector chassis, readily portable
10
sound reproduction and picture projection.
' An object of the invention is to put the ?lm
guiding members and loop formers de?nitely
30 under the control of the operator whereby he
may at will adjust the apparatus to the thread
ing position or to the running position;
This is accomplished by providing ?lm guid
ing members and loop formers under control of
35 a single hand-operated device which may be
moved at will by the operator to adjust the ?lm
guiding members and loop formers to the thread
ing position or to the running position.
Another object of the invention is to conjoin
40 the operation of the ?lm guiding members and
the loop formers with the application of electrical
power to the motor which drives the ?lm through
the apparatus and to the light source or sources
therefor.
This is accomplished by providing
45 means under control of the hand-operated device
or adapted to be inserted in a cabinet or other
enclosure of such dimensions as to be unob
trusive.
For further objects of the invention reference 30
may be made to the drawings wherein:
Fig. 1 illustrates a front view of the projector
mechanism and sound system housing or com
partment, with the cover plate removed.
Fig. 2 shows a front view of the assembled
multiple-unit chassis comprising the projector
mechanism and sound-system housing, the lamp
housing, and the reel holder, the cover plates be
ing removed from the projector and sound sys
tem housing and the lamp housing.
Fig. 3 is a sectional view of the assembled
multiple-unit chassis taken along the line X-X
of Fig. 2.
Fig, 4 is a front view, partly in section, of the
projector and sound system housing showing the 45
movable ?lm guiding and channel forming mem
bers in the automatic threading position.
Fig. 5 is a front view of the projector and.
Another object of the invention is to an matically disconnect electrical power from the - sound system housing of Fig. 4, but with the
50 apparatus in the absence of ?lm in the apparatus movable ?lm guiding members adjusted to the
or in the event of breakage of the ?lm. This is running position ready for picture and sound
referred to above for controlling the power
switch.
'
I
accomplished by providing an automatic stop
switch under control of the hand-operated de
vice referred to above, the hand-operated device
55
preparing the stop switch for operation upon the
projection.
~
-
.
Fig. 6 is a front view, partly in section, of the
projector and sound system housing showing an
alternative sound system to that of Figs. 1. 4 and
N
arraeos
portlandisadaptedtoberotatedbythedriving
; 5,/and with the movable ?lm
adjusted to the automatic threading position.
‘Fig. 'i shows the movable ?lm guiding “mem
‘
‘me the alternative sound
system of
motor during both automatic threading and pro- > .,
jection. A spring-pressed shoe 0 is arranged to ,
6‘ guide the ?lm to, and to retain the ?lm against
‘adjusted-to the running position.
Fig. 8 is_,.a front view. partly in section, of the
- projector and sound system housing illustrating
-' a. second alternative sound system to those of
Figs. 1, (‘and 5 with the ?lm guiding members
10 adjusted to the automatic threading position.
Fig. 9 shows the arrangement of Fig. 8, but
with the ?lm guiding members adjusted to the
and on. the feed sprocket 5 with the ?lm sprocket
‘ holes properly engaged with the sprocket teeth. ,
- The stationary‘ loop-forming member ‘I .is
?xedly mounted on the support 2 adjacent the,_
feed sprocket I and, in cooperation with the mov
able member 0 (in the threading position), serves 10
toguidethe?lminachannelfromthefeed~
sprocket! to and through the picture gate 9 dis
posedand mounted in the casing 3), when the
Fig. 10 is a rear view of the projector mecha
pressure pad l0 is,released from the picture gate.
16 nism and sound system housing as illustrated in
Immediately adjacent, but below the picture
Fig. 1, showing the cam, link and lever actuating gate 9, and mounted and journalled on the sup
mechanism adjusted to the threading position, port 2, is the motor-driven rotary presser cam II
whereby the ?lm guiding members are main
which serves to intermittently advance the ?lm
tained in the relation illustrated in Fig. 4.
by and through the picture gate. The rotary
Fig. 11 shows the arrangement of Fig. 10, but presser cam Ii maybe of the general form dis-.
running position.
‘
-
with the cam, link and lever actuating mecha
nism so adjusted as to position the ?lm guiding
members in the running position, as illustrated
in Fig. 5.
25
.
Fig. 12 is a rear view of'the assembled multiple
Iunit chassis illustrated in Fig. 2.
Fig. 13 is a sectional view of the projector and
sound system housing and the lamp housing,
taken along the line Y-—Y‘of Fig. 2, and showing
the electric driving motor and the- driving con
nections.
‘
d
-
Fig. 14 is a vertical mid-sectional view, of the
lamp housing.
‘
Fig. 15 shows in unfolded section the manner
‘ of rotatably mounting the ?lm drum of the sound
system, illustrated in Figs. 1, 4 and 5.
Fig. 16 illustrates the manner in which the pro
jector lens is adjustably mounted for focusing.
Fig. 1'7 is a side view of the framing plate assembly.
‘
Fig. 18 is a front view of the framing plate
assembly showing the adjustable‘ multi-aperture
plate for the picture gate.
Fig. 19 shows the multiple-unit
chassis
mounted in a cabinet ready for sound and picture
projection.
Fig. 20 shows in further detail the control
mechanism of Figs. 10 and 11 and is a perspective
view, with certain parts broken away or omitted,
of the various switching mechanisms operated
by the control knob.
Fig. 21 is a perspective view of a mercury switch
in an adjusted position different from that shown
in Fig. 20.
Fig. 22 is a schematic circuit diagram showing
the circuit connections for the motor, projection
lamp, and for the switching devices of Figs. 20
and 21.
‘
Referring now to Fig. 1, the entire picture pro
jection mechanism and the mechanical portion
of the sound system are mounted within a com
partment or housing A comprising ‘a centrally
_ located vertical plate or support 2 provided at
its sides and ends with\a casing 3 having an ex
tended surface, as shown in Fig. 3. The casing
3 may be separate or it may be integrally formed
with the support 2 if desired, for example, in the
form 01' a casting. Thus, the support 2 and the
casing 3 form a partial enclosure, open at front
70 and rear, for the mechanism hereinafter de
scribed.
At the upper left-hand portion of the compart
ment or casing A, a guide roller 4 is arranged
adjacent the lead-in feed sprocket 5. The feed
75 sprocket 5 is mounted and journalled on the sup
closed in Hadley Patent No. 1,334,450, and so
designed with an undercut portion i 2 as to enable
ready stripping or guiding of the ?lm therefrom.
Immediately adjacent the rotary presser cam
Ii, and mounted and journalled ior rotation on 25
the support ,2, is the motor-driven intermediate
sprocket it, the function of which is to con
tinuously take-up ?lm from the rotating cam II
and to continuously feed the film to the sound
on-?lm record resolving and translating system
(the sound system). The sprocket i3 is provided
with a spring-pressed shoe H which insures
smooth operation by ?rmly pressing the ?lm onto
the sprocket in such a way as to prevent chatter
ing of the ?lm as the sprocket teeth engage the
?lm sprocket holes. An extending tongue por
tion of the shoe l4 cooperates with the rotary
presser cam ll, particularly the undercut portion
i2, to guide the ?lm to the intermediate sprocket
l3 in the threading operation and to strip the
?lm from the cam ii, during projection.
As shown in Fig. 1, and also. in Fig. 4, the end
of shoe vl4 extends into and between the flanges
of presser cam ll so that it will effectively strip
the ?lm and guide it on its intended path.
45
The sound-on-?lm record resolving and trans
lating system includes the following mechanical
parts, all of which are mounted on the support 2:
The drum i5, which is ball bearing mounted as
illustrated in Fig. 15; the sound drum shoe it
provided with two light apertures or sound gates
I ‘I ‘(as illustrated in Fig. 15), through which the
exciter lamp rays may be focused on the sound
on-?lm record in the course of its passage thereby
while in driving contact on drum II.
‘
Immediately adjacent the drum II, there are
arranged two stationary guide rollers it and II
which, in conjunction with the spring-pressed
roller 20, serve to apply tension to the ?lm in its
passage over the rotating drum as driven by the
?lm. This is accomplished by the cooperative
continuous ?lm-feeding action of the inter
mediate sprocket l3 and the continuous?lm take
up action of the take-up sprocket 2!. As in the
case of the feed sprocket 5 and the intermediate
sprocket ii, the take-up sprocket 2| is mounted
and journalled on the support 2 and is driven by
the motor shown in Fig. 13.
,
As will be observed, the take-up sprocket 2i is
mounted adjacent the drum is and is provided 70
with a spring-pressed shoe 22 to insure a smooth
and positive take-up of the ?lm.
By means of a bracket 23 mounted on the
support 2, a journal is provided for the spring
pressed tension roller frame 24 carrying the 15
3
9,114,608
nalled for free rotation of the supply reel in
roller 20. The tension roller frame 23 also pro
the reel holder, while the shaft 5| is adapted to
vides a movable member in the nature of an
receive the take-up reel and is rotated 'by the
motor driving the projector mechanism.
Fig. 3 shows the manner in which the pro
jector and sound system housing A, the lamp
housing B, and the reel holder C, may be as
sembled and secured together. It also illustrates
extending tongue 25 integral therewith which,
in cooperation with the movable guide shoe 28,
forms a threading channel for the ?lm from
the sound system and drum I! to the take-up
sprocket 2|. as will be more fully described in
connection with Figs. 4 and 5. ‘
the manner in which the intermittent. shutter
60 is rotatabiy mounted and journalled on the 10
After the ?lm has passed the take-up sprocket
10 2|, it is fed to the driven take-up reel, not shown,
through the gii'iding member 21 and over the
roller 23.
The proper framing adjustment of the ?lm
casing 3 of the projector and sound system
housing A in the space between it and the lamp
housing B.
To the end that the intermittent projector
pictures in the picture gate 9 is, accomplished,
way the picture is displaced as observed on the
light shutter 60 and a ?re shutter 6| may be 15
located between the housings A and B, the lamp
housing casting is so shaped and formed as to
screen. Upon rotation of the shaft 29, the inter
mediate sprocket I3 is displaced so that its rela->
tive operating relation or position with respect
Fig. 2 at 31’.
The manner in which the pressure pad III, 20
16 during projection, by manually rotating the shaft
29 in the proper direction, depending ‘on the
have the proper con?guration, as illustrated in
which is normally spring-pressed against the
to the cam II is changed or altered. This causes
the ?lm to be slightly advanced or retarded
lengthwise thereof so as to bring the successive
?lm on the bearing surfaces of the framing plate
sound system housing A is shown assembled as
a multiple-unit chassis with a lamp housing B
and a reel holder C, the lamp housing B being
secured to one side of the housing A and the
reel holder 0 being secured to the other side
containing the picture gate 9, may be released
therefrom for automatic ?lm threading, is illus
trated in Fig. 3. The spring-pressed pressure 25
pad shifter ?nger 62 is pinioned at 63 so that,
in its normal position, it permits the pressure
pad .Hi to contact with and frictionally hold
the ?lm in the picture gate. To the end that
the pressure pad may be released, a shifter pin 30
64, mounted on and at right angles to the con
trol shaft 65, moves the ?nger 62 inwardly when
the mechanism is adjusted to the threading po
sition. Thus, the movement of the pin 64 serves
to hold thepressure pad Hi from its normal 35
position against the ?lm in the picture gate. ,
thereof.
In the lamp housing B there is shown the
projector incandescent ?lament lamp or light
source 30, the condenser lens and mounting 3|
and the re?ector and mounting 32.
described by reference to Figs. 4 and 5. Refer
ring ?rst to Fig. 4, the control knob and key
‘I0 will be considered as having been turned 40
and adjusted to the threading position, as indi
?lm picture frames into proper registration with,
and in, the picture gate 9.
The rotatable shaft I proves a means for man
ually adjusting the projector lens mounting dur
ing projection, so as to secure proper focus of
the pictures on the screen, as more fully ex
plained in connection with Fig. 16.
Referring now to Fig. 2, the projector and
The automatic threading operation will be
cated. In this way, by means of a cam and link
A dividing member 33 (which may be inte
speak, in a small compartment of its own within
the lamp housing B for the purpose of localizing
the heat radiated by the projector lamp 30.
Below the bracket 36 is arranged the exciter
and lever connections, which will be described
more in detail in connection with Figs. 10 and
11, the slidably mounted curved guide member 46
8 is lower in position adjacent the ?xed curved
member ‘I, so that the tip 8' serves to guide the
end of the ?lm emerging from the feed sprocket
5 through the ?lm guiding channel (in the form
of a loop) between the members ‘I and 8. Thus, 50
the ?lm is guided from the feed sprocket 5 to,
and then ,through, the picture gate 9, the pres
sure pad I0 having been released therefrom as
lamp 33 mounted in a form of socket and con
tact’ 33 so that the light rays thereof may be
As the ?lm is being continuously fed from the 55
grally cast) is provided in the lamp housing B
having an opening 34, through which the pro
jector lamp 30 may be inserted in a suitable
socket 35. The socket 35 is mounted on the
bracket 36 which in turn is supported from the
casing 31 of the lamp housing B. Thus, the
projector lamp light source 30 is isolated, so to
explained in connection with Fig. 3.
feed sprocket 5, it is guided, after it leaves the
picture gate 8, around the rotary presser cam
II, by means of the ?xed curved guiding mem
ber ‘II, to the intermediate sprocket l3. The
spring-pressed shoe ll, cooperating with the in
termediate sprocket l3, serves ?rst to guide the
end of the ?lm onto the sprocket l3, and to
engage the ?lm sprocket holes with the sprocket
teeth thereof, and to direct it upon emerging
therefrom. As the ?lm leaves the intermediate
sprocket l3, it is driven through the ?xed guid
ing channel 12, over the roller l8, around the
sound drum l5, being guided by the ?xed drum
the screw 49, which engages a threaded por
tion of the optical system frame. Thus, the shoe l6. Thereafter, it is guided to the take-up
sprocket 2| by the ?xed guiding member ‘I3 co 70
70 enclosed optical system may be adjusted 'to pro
ject rays of light from the exciter lamp 38,‘ operating with the movable guide shoe 26 and
through either one of the sound gate apertures the‘extending tongue 25 of the tension roller
directed to and through an enclosed optical sys
tem consisting of the lens and mounting 40, a
cylindrical mirror ll, and a lens and mounting
32, extending into the projector and sound sys
tem housing A through a slot 43 in the casing B.
The exciter lamp 33, its socket connection 39,
and the enclosed optical system comprising the
members 43, ll and 42, are all supported on
the sound optical system frame 44 which is slid
ably mounted ‘on two shafts l5 and 46. The
sound optical system frame 44 is thus arranged
for horizontal displacement upon adjustment of
l‘I shown in Fig. 15.
.
The reel holder C is provided with two shafts
75 SI and BI. The shaft 50 is mounted and jour
frame, as shown.
Thereafter,v the ?lm passes to the takeup
sprocket 2|, which engages the sprocket holes 75
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