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Патент USA US2133743

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Oct. 18, 1938.
Q, w, GiTHENs 51- AL
2,133,743
MOTION PICTURE CAMERA
Filed Jan. 28, 1937
INVENTORS
‘650265 ms/vos
orra w. a/mews
[VEKETTM Poem?
'
BY
“ ‘3%;4115
NEY
ATT
Patented 0a. 1a, 1933
2,133,743
UNITED STATES PATENT OFFICE
. 2,133,743
MOTION PICTURE CAMERA
-0tto W. Githens and George Kende, New York,
and Everett M. Porter, Brooklyn, N. Y., as
signors, by mesne assignments, to Universal
Camera Corporation, New York, N. Y., a cor
poration of Delaware
Application January 28, 1937, Serial No. 122,688
9 Claims. (Cl. 242-55)
Referring now in detail to‘ the drawing, there
This invention relates to motion picture cam
eras. More particularly, it relates to improve
ments in the‘ construction of motion picture cam
era spools and spool chambers.
5
.
is shown a motion picture camera Iii, the mecha-v
nisms of which are housed in a three-part light-g _
I proof casing comprising the parts ||, i2 and I8,
I
One of the objects of our invention is to provide
in a motion picture camera of the character de
scribed an improved construction of the ?lm
spool chamber whereby the spools are readily ac
more fully shown and described in our co~pend- 3 .
cessible for removal and replacement.
Another object of our invention is to provide,
tioned co-pending application is designed so that
in combination with a camera of the character
a unit in the casing part II, the ?lm feeding and
described, a ?lm take-up spool of novel construc
tion, and improved means for driving said spool
shutter mechanism as fully ‘described in our co
ing application Serial No. 128,728 ?led March 3,
1937 for Motion picture camera.
The casing as described in our above-men
the motor and driving mechanisms are housed as m
pending application Serial No. 121,488, ?led Jan‘
uary 21, 1937, for Motion picture camera is
' housed in the casing part‘ it, while the casing .15
15 take-up spool.
. 1
part |2 provides a light-proof ?lm spool cham
Still another object of our invention is to pro
vide a novel ?lm spool and mounting therefor ber I! in which are housed the ?lm take-off spool
l6 and the ?lm take-up spool H. The ?lm spools
which is ‘simple, yet rugged in construction,
i6 and i1 are'made of suitable rigid material,
which is easy to assemble, which is relatively in
20 expensive to manufacture, and which at the same such as light metal, and comprise a pair of par- 39
allel annular disks II and I! (see Figs. 4 and 5)
time operates with a high degree of emciency.
,
Other objects of this invention will in part be interconnected in spaced relationship in any suit
to obtain uniform winding of the film on the
obvious and<in part-hereinafter pointed out.
,
The invention accordingly consists in the fea
25 tures of construction, combinations of elements,
and arrangement of parts which will be exem
pli?ed in the construction hereinafter described,
and of which the scope of application will be in
.
30
dicated in the following claims.
A
‘
>
I
Certain features shown and described but not
claimed in this application are described and
claimed in applicants’ co-pending applications,
Serial No. 121,488, ?led January 21, 1937; Serial
No. 128,728, ?led March 3, 1937; and Serial No.
35 135,410, ?led April 7, 1937, for Motion picture
camera.
>
,
In the accompanying drawing, in which is
diameter than the disk II, for reasons which will
become apparent as the description proceeds.
The disk I! is provided with a centrally disposed ’
relatively small aperture 2|,. while the disk I. is 39
provided with a relatively large aperture 22 in
alignment with the aperture 2|. The spool il
containing a roll of ?lm F is freely mounted on a
?xed shaft 25 which is ?xed to a wall 26 of‘the
motor and driving unit,v (see Fig. 2) and is 'pro- 35
vided with an enlarged shoulder 21 adjacent said
Fig. 1 is a side elevational view of a motion pic
ture camera embodying our invention, with por
tions broken away disclosing the ?lm spool cham
ber and the ?lm spools in operative position;
Fig. 2 is an end view, partly sectional, of. the
pered portion 29. The aperture 22 of the spool It
is designed to freely receive *the shaft 25 while
the aperture 2| is adapted to receive there
this invention,
.
45 camera illustrated in Fig. 1;
‘
Fig. 3 is an enlarged detail side-view of the ?lm '
spools shown in Fig. 1;
Fig. 4 is an end view of the film spool shown in
Fig. 3;
so
.
wound thereon between the spaced disks II and 25
It. The disk I8 is preferably slightly larger in
wall 28. The shoulder 21 serves as a seat for said
spool I8 and also to space the same from the wall
26. The shaft 25 is provided at its upper end
thereof with a portion 28 of reduced diameter, 44y
which is interconnected to the shaft 2! by a ta
shown one of the various possible embodiments of
4,0
able manner by a hollow shaft 20 of usual ?lm
spool construction and adapted to have a ‘film
'
Q
,
Fig. 5 is a cross-sectional view taken substan
tially on the line 5-5 of Fig.3;
Fig. 6 is an enlarged detail side view of the
mounting means for- the ?lm take-up spool; and
Fig. 7 is a cross-sectional view taken substan
li tlallyontheline 'I-‘I ofFlg. 6.
' through the shaft portion 28.
4s
The above described construction of the aper
tures 2| and 22 and the shaft 25 are designed to
facilitate the'quick mounting of the ?lm spools.
The ?lm F is adapted to be unwound from they
take-oil’ spool l8 and, after passing through the 50
film passageway, to be wound up on the take-up
spool II.
The shaft ll (see Fig. 7) upon which the spool
I1 is adapted to’ be mounted, is similar in con
struction to the shaft 2i, having a portion 3| as
2
2,188,743
thereof of reduced ‘diameter, interconnected by drawing, to permit easy grasping of the ?lm
a tapered portion 32. The shaft 30, however, is spools for removal and replacement.
It will thus be seen that there is provided a
journalled inithe wall 26 for rotation and is
adapted to be driven by a frictional drive mecha
nism of a design, such as is fully shown and de
device in which the several objects of this in
vention are achieved, and‘ which is well adapted
to meet the conditions of ‘practical use.
As various possible embodiments might be
made of the above invention, and as various
changes might be made in the embodiments above
set forth, it is to be understood that all matter 10
herein set forth or shown in the accompanying
_ drawing is to be interpreted» as illustrative and
scribed in our said co-pending application Serial
No. 135,410, ?led April '7, 1937. The apertures
2| and 22 of the spool II are designed to freely
>10
receive the shaft portions 3i and 30, respectively,
similar to the mounting of the take-01f spool It.
To cause uniform rotation of the spool I‘! with
the shaft 30, we have provided the following construction:
'
‘
.
-
not in a limiting sense.
Having thus described our invention, we claimQ
15 an annular plate or disk 35, adapted to serve as as new and desire to secure by Letters Patent: 15
1. In a camera, a ?lm spool comprising a pair
a seat for the spool I‘! and being spaced from'
the wall 26, a distance substantially equal to the of spaced parallel interconnected disks, one of
Fixed to the shaft 30 for rotation therewith, is
shoulder 21 so that when mounted on the shafts
25 and 30 the ?lm spools I6 and I7 will be in
proper alignment for the travel of the ?lm. The
disk 35 may be attached to the shaft 3i! by any
suitable attaching means, such as for example,
providing the shaft 30 with a slightly-enlarged
portion 36, the upper shoulder of which is ?at
tened over the top surface of the disk 35. The
disk 35 may be provided with a centrally disposed
recessed portion 38 su?lcient to clear the prongs
39 used -in assembling the disks I8 and I9 and
the member 20 of the spool II. To retain the
?lm spool H in rotatable relationshipv with the
disk 35, there are provided spaced projections 40,
extending outwardly from the periphery of the
*_disk 35, and upwardly with respect to the ?at
said disks being provided with a plurality of sym- -
metrically disposed notches adjacent the periph-'-v
erythereof, the portions adjacent the periphery 20
of said disk between said notches being turned
slightly upw‘ardly, a rotatably mounted shaft, a
plate ?xed to said shaft for rotation therewith,
the plane of said plate being substantially at
right angles to the axis of said shaft, said spool
being freely received on said shaft and adapted
to rest on said plate, said plate being provided
with a‘ plurality of projections adjacent the pe
riphery thereof adapted to be received in said
notches for causing rotation of said spool with 30
said shaft, said projections being turned slightly
upwardly to facilitate interlocking of said notches
and said projections, said notches being greater
surface of the said disk.35. The projections '40 in number than said projections whereby to fa‘
‘are designed to ?t into correspondingly spaced ' cilitate' the registering of said notches and said 35
notches 4| extending inwardly from the periph
ery of the disk I9 of the spool I1 to thus hold
the spool I1 and the disk 35 in interlocked rela
tionship. To aid in properlyholding the spool
I‘! on the disk 35 the peripheral portions 42 of
the disk I9 between the‘notches 4| are turned
projections.
2. In a camera, a rotatably mounted shaft, a '
circular plate ?xed to said shaft for rotation
therewith, said plate being provided with at least
three outwardly and upwardly extending periph
eral projections, and a ?lm spool adapted to be
down slightly, such as for example, a distance . received on said shaft and overlying said plate,
on the nature of ?ve-thousandths of an inch.
If desired, the number of suitably spaced notches
4| in the disk l9 may exceed the number of pro
jections 48 on the disk 35 to more readily mount
. the ?lm spool I‘I.
After the ?lm ‘spools l5 and I‘! have been prop
erly mounted in the ?lm spool chamber I5 in the
manner above described, they are retained in
proper position in the said chamber I5 by means
of the wall I 211 of the casing part I2, the inner
surface of which may be provided with recessed
areas 50 adapted to freely receive therein the
shaft portions 28 and 3| which project through
the apertures 2| in the spools I6 and II, as clearly
shown in Fig. 2. The amount of clearance for
permitting movement of the spools I5 and I1
between the walls 26 and I20. of the ?lm spool
chamber I5 is designed to be less than the dis
said ?lm spool comprising a wall provided with
peripheral means adapted to cooperate with at
least one of said projections for causing rotation 45
of said spool.
‘
,
l
3. For use in a- camera ‘having a rotatably
mounted plate provided .with a plurality of pe- '
ripheral projections, a ?lm spool comprising a
pair' of spaced parallel interconnected disks, one 50
of - said disks being adapted to rest upon said
plate and provided with peripheral -means co
operating with at least one of said projections for
causing rotation of said spool with said plate.
4. For use in a camera having a rotatably 55
mounted circular plate provided with a plurality
of peripheral projections, a ?lm spool comprising
a pair of spaced parallel interconnected disks,
one of said disks being substantially of the same
diameter as said plate and being adapted to rest
tance of the upwardly projecting portions III so *‘upon said plate and provided with peripheral
means cooperating with at least one of said
that the ?lm spool I‘I will be prevented from be
coming. disengaged from the disk 35 while'the projections for causing rotation of said spool with‘
- camera is in use.
From the above-described construction it is
‘ also seen that we have provided a novel arrange
ment for housing» and mounting the ?lm spools
- I6 and I‘! so that the said spools are conveniently
said plate.
-_
>
_
.5. A ?lm spool adapted for‘. use in a camera
having a rotatably mounted plate provided with
a peripheral projection, said spool comprising a
pair of spaced interconnected parallel walls, atv
least one peripheral '"notch in one of saidwalls,
70 times. Heretofore, ?lm spools have generally said notch being adapted to receive therein said 70
been sunken into a well portion of the camera_ plate projection whereby the driving force of said
casing, making it extremely inaccessible and'i?é spool will be applied at the periphery thereof.
6. A ?lm spool adapted for use in a camera
convenient to get at. In the present invention,
it is merely necessary to remove the casing part‘ having a rotatably mounted circular plate pro
II, shown partly broken away in Fig. 2 of' the vided with a plurality of spaced peripheral pro- 75
accessible for removal and replacement‘at all
smm
3
jections, said spool'comprising a ?at wall pro- ‘ provided with at least one peripheral notch, said
vided with a plurality of peripheral notches notch being adapted to receive therein one 0!
adapted to receive therein said projections, said plate projections for causing rotation 0! said
whereby the driving force of said spool will be spool with said plate.
' applied at the periphery thereof.
7. In a camera, a rotatably mounted shaft, a
circular plate ?xed to said shaft for rotation
therewith, said plate being provided with a plu
rality of spaced peripheral projections and a iilm
spool me‘iy rotatable on said shaft and compris~
inga wall having peripheral means adapted to
9. For use in a motion picture camera having a
rotatably mounted plate provided with a plurality
of peripheral projections, wherein said plate is
adapted to be driven by a motor, a iilm spool.
comprising a pair of spaced parallel intercon
nected disks, the diameter of said disks being sub 10
stantially greater than the said space between
cooperate with said projections tor‘ peripherally‘ said disks, one of said disks being adapted to
rest upon said plate, said last named disk being
driving said spool.
I. For use in a motion picture camera having provided with at least ‘one peripheral notch, said
notch being adapted to receive therein one of said 15
a rotatably mounted plate provided with a plu
rality or peripheral projections. wherein said plate
isadsptedtobedrivenbyamotonarllmspool
comprising a pair of spaced parallel intercon
nected disks, one of said dishbeingadaptedto
mrestuponsaidplatasaidhstnameddiskbeins
plate projections for causing rotation of said
spool with said plate.
OTTO W. GITHENB.
GEORGE KENDE.
EVERETT M. PORTER.
9o
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