US1198758A - Means for preventing fire in moving-ficture apparatus. - Google Patents

Description

L. L. PH!LLIPS.

MEANS 03 PREVENTING FIRE m movms PICTURE APPARATUS.

APPLICATION HLED SEPT. 4. I915.

Patentvdse 'at. 19, 1916.

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LEWIS L. PHILLIPS, 0F MINEOLA, NEW YORK.

MEANS FOR PREVENTING FIRE IN MOVING-IICTURE APPARATUS.

I '0 all whom it may concern i Be it known that I, LEWIS L. PnILLIPs, a citizen of the United States, and residing at Mineola, Long Island, in the county of Nassau and State of New York, have in-' the, object of the invention is to provide improved lmeans for the prevention of such fires, said means being automatic in operation, and with this and other objects in view the invention consists in means or apparatus of the class specified, constructed and operated as hereinafter described and claimed.

The invention is fully disclosed in the followingspecification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are dcsignated by suitable reference characters in each of the views, and in which Figure l is a sectional view of a part of a moving picture apparatus involving my invention; Figj 2 a view at right angles to that of Fig. l and showing only details of the construction and on an enlarged scale; and, Fig. 3 a section on the line 3 3 of Fig. 1 on an enlarged scale.

In the amompanying drawing, reference being made to Fig. 1 particularly, I have shown a part of a moving picture apparatus involving a top magazine a and a bottom magazine b in which the film reels 0 and (l are mounted, and the magazines a and b are connected, as shown, by a vertical casing 0 involving front and back plates c and 6 having light apertures c and 0".

Adjacent to the back plate a and at the front thereof and adj aeent to the top thereof is mounted the usual film roller f below which and below the light aperture 0* is another film roller f below which is a third film roller f, all this being of the usual eonstructlon, and the tilm g which is wound on one of the reels a d and adapted to be rewound onto the other s passed through an aperture a 1n the bottom of the top maga- Specification of Letters Patent.

Patented Sept. 19, 1916.

Application filed September 4, 1915. Serial No. 48,953.

zine a backwardly and around the roller f down to and around the roller f, after which a loop of slack g is formed in said film, after which said film is passed backwardly and around the roller f and down into the magazine I; Where it is connected with the reel (1.

Pivoted to the top of the magazine 6 is a gate it adapted to swing horizontally, and the pivotal point of which is shown at b in Fig. 3, and all this construction is also old and well known and the gate b may be of any desired form and may be pivoted or hinged in any desired manner.

I have also shown at z the light discharge tube of an ordinary projector and, in the practice of my invention, I secure to the top of the bottom magazine I) a telescopic standard j, comprisi a bottom part 3' pivoted to the top b 052%13 bottom magazine at 0'', and a vertically movable top part j having a forwardly directed arm 9', and the top part j of the standard j may be adjustably secured to the bottom part j by a set screw y.

Placed on the top of the magazine 75 back of the back plate 0 of the casing; e is a plate In provided at its ends with raised ears k in which is mounted a rock shaft in provided atom: and with an arm m and at the opposite end with a crank m on which is mounted a roller m, and the back plate 6 of the easing e is provided at the bottom thereof with an aperture 0 through which the crank in operates.

The outer end of the plate In is provided with an' arc-shaped stop plate is in connection with which the arm m operates to limit the rotation of the shaft 112- and the crank m with its roller m operates within the gate h as well as through the rear casing plate e Mounted in the top of the standard below the arm j is a horizontal rod 11 on w ich is secured a plate 11. which is preferably round as indicated in dotted lines in Fig. 2, and the rod n is provided at one end with an arm n which extends at right angles thereto and a cord or wire 0 is connected with the arm m and with the arm m After the film has been passed around or in connection with the rollers f, and f, as hereinbefore described, it is passed back of the roller m, as shown in Fig. l. and con nected with the reel 0'.

The full line position of the various parts, as shown in F ig. 1, is he position said parts occupy when the apparatus is in use, and it is a well-known fact that in the use of ap paratus of this class the film, if broken is usually broken below the roller f and the hot rays of light from the projector tube 11 striking the film ignites it and thus starts a fire due to the fact that said film is usually made out of highly combustible material. \Vith my improvement, however, if the film should be broken, as above described, the crank m and its roller m will at once drop into the position shown in dotted lines in Fig. l, and the plate n which operates as a shield would also drop into the position shown in dotted lines in Fig. 1, and the rays of light will be cut oil and the film 1] would not be ignited. In this operation, the arm n of the rod it also is thrown into the position shown in dotted lines in Fig. 1, as is the arm m of the shaft m. and it will be observed that the arm m is outside of the casing 6, while the crank arm m in its normal position is inside of said casing.

It will be understood that my invention is not limited to the exact details of the construction herein shown and described. The

main idea being the provision of the shield device which in the event of the breaking of the film is automatically thrown into position to cut off the rays of light from the projector; and various changes in and modifications of the construction herein described may be made, within the scope of the appended claims, without departing from the spirit of my invention or sacrificing its advantages.

Ha vin fully described my invention, what I ciiim as new and desire to secure by Letters Patent, is

1. In a moving picture apparatus, the combination with a shield located between theprojector and the film, of a roller against which the film bears. and mechanical means permanently connecting said roller with said shield, whereby the film, through said roller and connecting means, normally serves to support the shield in inoperative position and the breaking of the film will release said roller and permit the shield to move into operative position.

2. In a moving picture apparatus, the combination with a pivoted support carry ing a shield which is located between the projector and the film, of a roller against which the film bears, and mechanical means permanently connecting said roller with said shield support whereby the film, through said roller and connecting means, normally serves to support the shield in inoperative position and the breaking of the film will release said roller and permit the shield to drop into operative position.

3. In a moving picture apparatus, the combination with a ivoted support carrying a shield which is located between the projector and the film, of a rock shaft provided with a roller against which the film bears, and mechanical means permanently connecting said rock shaft and said support, whereby the film through said roller, rock shaft and connecting means, normally serves to support the shield in inoperative position and the breaking of the film will release said roller and permit the shield to move into operative position.

4. In a moving picture apparatus, the combination with a standard, of a rod pivotally mounted therein and provided with an arm, a shield secured to said rod and located between the projector and the film, a rock shaft Provided with a roller against which the film bears, an arm provided on said rock shaft, and means connecting the rock shaft arm and rod arm, whereby said film normally serves to support said shield in inoperative position and the breaking of the film will re ease said shaft to permit said shield to pa into operative position.

In testimon that I claim the foregoing as my invention Lhave signed my name in presence of the subscribingwitnesses this 3rd day of September, 1915.

LEWIS L. PHILLIPS.

Witnesses:

C. MULREANY, H. E. THOMSON.

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