US1361767A - Holder for photographic films - Google Patents

Description

W. A. LEITER.

HOLDER FOR PHOTOGRAPHIC FILMS.

AP'PucATlou man FEB. 9. 1920.

1,361,767, Patented Dec. 7, 1920,

Elammutoz Max #gzzz attorney UNITED STA S PATENT OFFICE.

WILLIS A. LEITER, 0F SPRINGFIELD, OHIO.

HOLDER FOR PHOTOGRAPHIC FILMS.

Application filed February 9, 1920.

To all 0.0 110m it an 0 1 concern Be it known that I, VILLIIS A. Lnirnn, a citizen of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Holders for Photographic Films, of which the following is a specification.

This invention relates to improvements in holders for photographic films during the developing of the same.

The object of my invention is to provide a. holder of the character referred to which will be simple in its construction and effective for the purpose for which it is designed; a further and more specific object being to provide a holder in which the film may be readily inserted and clamped therein, as well as readily and easily removed.

In the accompanying drawings,

Fig. 1 is a front view of a holder embodying my improvements, partly broken away.

Fig. 2 is an inverted section on the line 2-2 of Fig. 1.

Fig. 3 is a view partly in section showing a modification.

Referring to the drawings, 1 and 2 represent the respective ends of the holding frame and 3 and 1 the respective sides thereof, preferably formed of sheet metal. The ends may be of L-shape, as shown at 1, or of partial U-shape, as shown at 2, while the respective sides are bent to a rectangular shape in cross section having one of the inner corners thereof, in this case the forward inner corner, open as indicated at 5. The sides and ends may be secured together by soldering, brazing or in any other suitable way to form a rigid frame structure.

Journaled in the end walls of each of the side pieces is a tubular rock- shaft 6 and 7, provided with a handle portion 8, bent inwardly at right angles thereto but any other suitable form of handle may be employed. Each rock shaft is provided with a plurality of cleats 9, preferably three in number, projecting laterally therefrom. Located on one of the walls of each of the .side pieces, in the present case the forward wall, is a strip 10 of metal, soldered or otherwise secured thereto, and having an out-turned outer edge 10, the said strips and their bent edges forming a guideway for the film which is shown at 11 in Fig. 2. The forward edge of the end piece 1 coincides with the forward edges of the inner walls of the side Specification of Letters Patent.

Patented Dec. 7. 1921),

Serial No. 357,113.

pieces, as shown in Fig. 2, which leaves sufficient space for the film to he slipped in at one end of the frame, while the forward portion of the end piece 2 will project flush with the forward surface of the side frames 4i so as to form a stop or abutment for the end of the film at that end of the frame.

In operation, the film is slipped into the frame so as to rest upon the strips 10 between their out-turned edges 10", the rock shafts being then in the position shown in F ig. 1 so that the cleats 9 will be out of the path of the film as it is inserted. By manipulating the handles 8 after the film has been inserted, the shafts may be rocked so as to throw the cleats 9 to the clamping position shown in F ig. 2 so as to firmly clamp the edges of the film to the strips 10.

By this construction it will be seen that a very simple and efficient holder for films is provided by which the film may be readily inserted and clamped to position for convenient handling during the developing process.

In Fig. 3 I have shown a modification of the device which is especially intended for holding one end of a film roll. In this case, a hollow rectangular-shaped body 12 is provided, similar in construction to one of the side pieces, 3 or 4. A rock shaft 13 is journaled in the end thereof, provided with a handle portion 14 and a series of cleats 16.

The frame is formed with a longitudinallyextending opening so that one end of the film roll may be inserted beneath the rock shaft, which may be then rocked to cause the cleats to clamp the film. Vith the use of such a device the other end of the film is suitably weighted so that it can be readily handled during the development thereof.

Having thus described my invention, I claim 1. In a holding device for films, a supporting structure, a rotatable member located in said structure, clamping projections on said rotatable member, and means for rocking said member to cause said projections to clamp a film to the walls of said structure.

2. In a holding device for films, a supporting structure, a rotatable clamping member located in said structure, and means for rocking said member to clamp a film to the walls of said structure.

3. In a holding device for films, a frame and a pair of oppositely arranged rotatable clamping members supported by the walls of said frame, together with means for rotating the same.

4:. In a holding device for films, a frame, a pair of oppositely arranged rotatable members supported by the walls of said frame, together with means for rotating the same, and clamping devices for a film located on said rotatable members.

5. In a holding device for films, a frame of rectangular form, a pair of rotatable clamping members supported at the sides of said frame, a guideway for a film extending along the sides of said frame, and means for rotating said clamping members to clamp the film upon said guideways.

6. In a holding device for films, a frame of rectangular form, a pair of rock shafts supported at the sides of said frame, a series of cleats upon said rock shafts, a guideway or support for a film extending along the sides of said frame, and means for rocking said shafts to cause said cleats to clamp the film upon said guideway.

7. In a holding device for films, a frame of rectangular form having tubular-shaped side pieces each having a longitudinally-extending opening at its inner portion, and a rotatable member supported in each of said side pieces having clamping projections together with means for rotating said members to clamp the film between said projections and the walls of said side pieces.

8. In a holding device for films, a frame of rectangular form, the sides of said frame being chambered and formed with a longitudinal slit, rotatable clamping members located in the sides of said frame, and means for rotating said members to cause the same to clamp a film against the walls of said sides.

In testimony whereof, I have hereunto set my hand this 3rd day of February, 1920.

WILLIS A. LEITER.

\Vitness:

CHAS. 1. TVVELOH.

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