USRE20595E

USRE20595E - Film magazine

Info

Publication number: USRE20595E
Authority: US
Publication date: 1937-12-21

Description

N. BOUVENG Re. 20,595 FILM MAGAZINE Dec. 21; 1937.

Original Filed March 28, 1951 2 Sheets-Sheet 1 BY mar 5174;. OR ww N. BOUVENG Re. 20,595

FILM MAGAZ INE Original Filed March 28, 1931 2 ShetsSheet 2 600M909- INVENTOR.

BY WXW- ATT RNEY.

- ratus and more possible for the operator to named Dec. 21, 1937 v j UNITED STATES HL MAGAZINE Nils Bouveng, Elgo,

assignments, to Jersey City, N. 1.,

Sweden, Eastman a corporation of New Jersey assignor, by mesne Kodak Company,

Original No. 1,984,111, dated December 11, 1934, Serial No. 526,027, March 28, 1931. Application for T 122,415

9 Claims.

to motion picture appaparticularly to a reversible film magazine for motion picture cameras.

In making two series of pictures width of film, the film is' passed through the camera exposing one-half of its width and then This invention relates It is an object of-this invention to provide a film spooling systemsuch that it will be imoperatively place the spooling system in the camera in other than the correct position.

Another object of this invention is to provide a film magazine having two spools or film cores adapted to carry the film which is loaded by the supplierand not opened until in the hands of the Processor.

ins's in which:

Fig. 1 is a side view of an open camera adapted to receive the magazine of this invention;

Fig. 2 is a side view of a magazine embodying this invention with one wall removed;

' mg. 3 is a rear elevation in section of the magazine illustrated in Fig. 2 with the film removed;

Fig. 4 is a side view of a modification of the magazine of this invention; and

Fig. 5 is a front elevation of the magazine shown in Fig. 4. l

In Fig. 1 is shown a camera/of a well known type and only such parts are shown as are deemed necessary to a complete understanding of this invention.

'As illustrated, the camera comprising a cas-' ing ll, one side of which is removable and is not the partition .l|. line, the film is adapted topass .over a sprocket l2, pass between curved gate members l3 and I4 through which it is drawn by, a suitable pulldown claw |5 and again over the sprocket [2,

on a single reissue January 26, 1937, Serial No.

The film is held against the sprocket l2 by the rollers I6 carried on the sliding supports IT.

Extending through the partition H is a shaft i8 adapted to drive the take-up core as hereinafter described. The sprocket l2, the pull-down claw l5 and the shaft l8 are adapted to be driven simultaneously by suitable mechanism not shown. Suitable .means for positioning a. magazine in the camera may be provided such as depressing a portion IQ of the partition I! to of the magazine, al-

though it is to be understood that any other magazine positioning means may be provided.

The magazine illustrated in Figs. 2 and 3 comprises a casing 20 provided with a. wall 2| which may be removed for loading and unloading purposes. Suitably mounted in the magazine are two

film cores

22 and 23 adapted to hold the film. These cores may be provided with suitable flanges for holding the film in proper position, but it is preferred to form indentations 24 in the casing 20 and cover 2| to accomplish this result. The core 22 is mounted for free rotation in the magazine and is provided with a slot 25 or other suitable drivable means available through the casing 20 to be connected with the shaft id for driving the core 22. The core 23 is likewise mounted for free rotation and is a similar slot 26 which is available through the cover 2| for connection with the shaft iii of the camera. One edge of the magazine is with suitable film openings 21 and 28 rendered light tight by means of a black velvet lining or any other suitable means well known in this art. In loading themagazine' the cover 2| is removed as in Fig. 2 and a film 29 is secured to and wound around the core 22. 'I'heloose end 01' the film 29 is then opening 21 and into the opening 28, and frictionally secured to the core 23 by insertion in the s1ot30 as is well replaced and need not be removed until it is desired to remove the film for processing. When it is desired to insert the magazine in the camera, the portion of the film appearing outside the magazine between the openings 21 and 28 is pulled out from the core 22 to form a'loop of sufiicient size to thread over the sprocket i2 and through the gate members I3 and II. The magazine is now placed in the camera so that the core 23 becomes the indicated. The film throughthe camera provided with threaded out through the take-up core, that v comp width through a half-width gate or otherwise, as is well known. It is now desirable to expose the remaining half width of the film and to ach this the film is unthreaded and the magazine is reversed, that is, the magazine is removed and replaced in the camera so that the slot connects with the shaft l8 and the core 22 becomes the take-up core. The film is again threaded through the sprocket l2 and the gate members." and I4 and upon operation of the camera the remaining exposed. The end oi the film secured to the core 23 is of normal widthand permits the entire length oi film to pass through the camera and be wound upon the core 22 from which it can not again be passed through .the camera. without first removing the cover is instructed not to do.

It will be seen from the above that I have provided a film magazine which must, from necessity, be so placed in the camera that the second passage of film through the camera cannot expose the same half width of the film that was exposed during its first passage-through the camera. For convenience, a suitable legend may be placed on the/magazine to indicate to the oper-.

ator the position in which the magazine should first be inserted in the camera.

One modification of this invention is illustrated in Fig. 4 as comprising a magazine similar to the one above described but in which the feed-' the gate members 33 and in the magazine structure.

ing sprocket

32 and 34 are incorporated The camera structure maybe readily alteredto accommodate this magazine by positioning the pull-down mechanism so that the claw will properly cooperate with the film in the gate members 33 and 3l,-'which members may be straight as shown. or may be curved if desired. In addition, the camera should have a drive shalt, not shown, but similar to shait i8 suitably' located to connect with the drivable means or slots 35 provided at each end-of the sprocket 32. It is to be noted that the

cores

22 and 23 are symmetrically disposed relative to the sprocket 32 and the

gate members

33 and 34 so that the sprocket 32 will be drivably connected to its shaft for both positions of the magazine, that is, when the core 22 is in take-up position, as well as when the core 23 is in take-up position.

Those skilled in the art will readily understandthat the size and location of the picture may be determined by the camera aperture in a well-known manner. For the purpose of this invention the camera aperture preferably is one half the width of the film'between the perforations, and is of a height equal. to the eflective stroke of the pulldown mechanism. With the aperture and lens of the camera. properly positioned, it isrreadily apparent-that only one half width of the film one exposure.

In practice this modified magazine is loaded by the supplier and the customer receives it with the bulk oi thefilm on the core 22, the lead of will be exposed by any the film being threaded over the sprocket 32 and between the

gate members

33 and 3|. and secured to the core 23. The customer places the magazine in the camera with the core 23 in takeup position and exposes-one-hali width of the film. The magazine is now removed and placed in thecamera in reversed pomtion so that the core 22 becomes the take-up coreand the film is again passed through the camera to expose the remaining half width of film. The came a half width of the film is- 2l, which the operator picture area.

some

is operated until all of the film is wound on the take-up core 22 and, therefore, cannot be passed through the camera again without removing the cover 2i and retreading the film, which operation the customer has been warned not to do. The magazine is now returned to the processor who removes the film and reloads the magazine with raw film whereupon it is ready to be sold to another customer.

, In Fig. 5 I have illustrated one arrangement of the exposure window 42 and the pull-down slots 43 and 44 for the magazine shown in Fig. 4. It will be noted that the slots 3 and H are symmetrically disposed about the window 42 so as to occupy the same position in the camera for both positions of the magazine. Gate member 33 is provided with an exposure window 33'. The slots 43 and 44 are of sumcient length to uncover at leasttwo perforations of the film. It will be obvious that it a two claw pull-down is to be used, two slots may be provided in the casing.

A mask for determining the size of the picture area should be mounted on the camera behind only two pictures .are to be taken on the normal- While two embodiments of this invention have been described in detail to comply with the requirements of the statutes, it is to be understood that it is not limited to the exact arrangements described inasmuch as, in -view of the disclosure.

obvious modifications will readily-suggest them-' selves, to those familiar with this art without departing from the spirit of this invention or the scope of the claims herein.

What I claim as new and Letters Patent of the United States, is:

1. A reversible motion picture film magazine comprising a light-tight casing with opposite par.- allel fiat walls, two parallel film cores rotatably mounted within said casing, one wall having an opening axially of one core and the other having an opening axially of the other core; each core having a clutch member within the casing op-' posite and engageable through the respective opening and a sprocket also mounted entirely within the casing parallel to the cores and having clutch elements at each end and openings in both side walls axially of the sprocket, whereby the magazine is free from protruding parts and may be utilized in inverted positions,

2. 'A magazine for motion picture apparatus comprising a casing having "a wall with an exposure window and having opposite parallel walls,

each of the parallel walls having a single opendesire to be secure by 5 ing, two parallel film cores rotatably mounted within said casing each 01 said cores v one end opposite the corresponding opening, whereby they may be alternately engaged by a driving element to wind film from either to the other, said first named wall having two slots diametrically symmetrical with respect to the center of the exposure window, whereby the magazine may be completely inverted between two positions and be capable in each position of cooperating with the same film engaging claw Qperating through one slot and the same driving "element operating through one opening.

3. In a magazine for motion picture apparatus. the combination with a pair of film cores, of

and axially of said openings,

having a drivable means in window in the magazine, slots in symmetrically arranged about magazine walls enclosing said cores, an exposure said magazine adapted to receive film positioning means and said window, a sprocket for moving a film towards and away from said window, drivable means for said sprocket adapted to cooperate with driving means of the motionpicture apparatus through either wall of said magazine and drivable means for each core adapted to cooperate alternately with a single driving means of said apparatus.

4. A reversible magazine for motion picture apparatus comprising side wallsand an edge wail, cores mounted between said walls, one core having a driving means at one end and the other core having a driving means at the otherend, a filmstrip with perforated edges wound on and attached to the cores, the edge wall having an exposure gate and slots symmetrically located with respect to the gate, one being in line with one edge of the gate and on one side thereof and the other being in line with the other edge of the gate and on the other side thereof, and means to guide the film from one core to'the other, past said gate and slots with, the perforations of one edge behind one slot and the perforations of the other edge behind the other slot.

5. A reversible motion picture film magazine -comprising a casing and film supporting means therein, and means to guide film in a definite path in either direction along said path, one wall of the casing having an exposure gate along the path of the film and having also two slots, one on one side of the gate opposite the path of one edge of the film and the other on the other side of the gate symmetrically opposite the first with respect to the gate and opposite the path of the other edge of the film.

6. A reversible magazine for motion picture apparatus comprising a'relatively thin casing having opposed side walls and a narrow peripheral wall connecting the edges of the side walls, cores rotatably mounted between the side walls, a strip of film wound upon and connected at its ends to the two cores and having uniformly spaced perforaticns along its edges, said peripheral wall havin'g an exposure gate therein, means for guiding and supporting a portion of the film at said gate,

two slots of greater length than the distance between consecutive apertures in the film, one slot being on one side of the gate and in-registry with one edge of the film and the other slot being symmetrically opposite to the first with respect to the gate and in registry with the other edge of the film 7. A reversible magazine for use in a motion picture camera and comprising a light-tight casing having side walls and a peripheral wall connecting the edges of the side walls each side wall ing reversed positions film strip provided having a single opening therein, a pair of spaced cores rotatably mounted between the walls axially of the respective openings and entirely within the casing, the end of each core opposite the respective opening having a clutch element thereon adapted to be engaged through the opening, the peripheral wall having an exposure gate therein and slots symmetrically positioned on each side or said exposure gate and in line with opposite edges of said gate, whereby the magazine may be used in either of two inverted positions in a camera having a clutch element adapted to engage the cores alternatively and having a pull-down claw adapted to operate in the slots alternatively to advance 'filmthrough the magazine.

8. A reversible magazine for motion picture apparatus comprising side walls and an edge wall, coresmounted between said side walls, one core having a driving means at one end and the other said film strip and the other slot being in line,

with the perforations along the other edge of said film strip, and said edge wall with respect to said slots being symmetrically apertured for alternative co-operation with an exposure opening in said motion picture apparatus respectively durof said magazine therein whereby oppositely extending longitudinal series oi images on the film strip may be alternately exposed.

9. A reversible magazine for motion picture apparatus comprising side walls and an edge wall, cores mounted between said side walls, one core" having a driving means at one end and the other core having a driving means at the other end, a with perforated edges, wound on said cores and extending therebetween, a gate plate along the inside of said edge wall, and means for guiding the intermediate portion of said film strip along said gate plate, said edge wall and said gate plate each beingprovided with a pair of slots, one slot being in line with the perforations along one edge oi! said film strip and the other slot being in line with the perforations along the other edge of said film strip, and said edge wall and gate plate with respect to said slots each being symmetrically apertured for alternative cooperation with an exposure opening in said motion picture apparatus respectively during reversed positions .of said magazine therein whereby oppositely extending longitudinal series of images on NILS BOU'VENG.