US1306580A - Holder for cameras - Google Patents

Description

W. G. CRAMER.

HOLDER FOR CAMERAS.

APPLICATION FILED APR. 30, 191B.

1 ,306,580. Patented June 10, 1919.

amen V60 z WALTER o. oRA vrER, or CINCINNATI, c1110.

HOLDER FOB. CAMERAS.

r m lati nl i t a r n Patented June 10,1919.

Application filed April 30, 1918. Serial N 0. 231,689.

To all whom it may concern:

Be it known that I, WALTER G. CRAMER, of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Holders for Cameras; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to cameras, and particularly to such as use a continuous fihn wound upon spools. The object of my invention is to provide a simple and improved means for holding the spools in the camera which means will permit of ready removal of a filled spool after the film has been exposed.

In the drawings, Figure 1 is a view in perspective of the inner frame or shadow box of a camera showing my improvements.

Fig. 2 is a sectional view. Fig. 3 is a top plan view of the shadow box with the spool turning key removed.

My improved spool holding means is shown in the drawings as applied to an inner frame or shadow box having a top, front and bottom, 1, 2 and 3, respectively, formed from a single piece of metal, and sides 4 likewise formed from a single piece of metal and secured to the top and bottom by tangs 5'. The sides 4 are arranged on converging lines toward the front of the box and the space outside each side and between the top 1 and bottom 3 forms a pocket 6 for the fihn spool.

As is well known in the art of photography where pictures are taken upon a continuous film two spools are required. The spool with the fresh film is placed upon one side and the film drawn therefrom and around the shadow box to a second spool upon which it is wound as'portions of the film are exposed. These film spools must be securely but detachably held in the pockets 6 free to rotate. The means on the bottom of the shadow box serving to hold the spools is a spring arm 10 which is of T-form, secured to the shadow box at 12. The branches 13, 14of the spring arm extend across the bottom 3 near the front of the shadow box and in such position that studs 15 located near the ends of the branches will project through apertures 16 of the box and form bearin s for the film spools. The extreme ends 1 of the branches 13, 14: are slightly flared so as to provide a ready gripping point for lifting the branch so as to disengage the spool. The opposite ends of the spools are held by a key 20 and a leaf spring 21, respectively. The leaf spring is secured at one end to the frame and at its other end has a stud 22 similar to the studs .of the branches 13 for engaging the spool and forming the complementary bearing. In order that the spool with which the key is to engage after the shadow box is placed in the outer case, which I have designated A, shall not get out of alinement, I strike up a lip 23 from the top which tends to steady the spool.

It will be seen that I have provided a simple means for holding the spools in position. After a film has been wholly exposed and it is ready to be taken from the camera, it is only necessary to pull out the key and to then lift the branch 13 from engagement with the opposite end of the spool, the complementary branch 14: acting as a pivot. Then when a new film is to be introduced the branch 14 is raised with the branch 13 acting as a pivot so as to permit change of the spool to the opposite side. When the new film has been brought into engagement with the empty spool the shadow box is then inserted in the outer case and the key is forced into engagement with the spool, remaining in such inward position without any danger of accidental displacement but with no restraint against turning movement.

I claim as my invention:

1. In a camera, spool holding means including an arm secured 'to thecamera frame and having branches for engaging the ends of two spools, and means for supporting the opposite end of one of said spools, in combination with means for engaging the opposite end of the other of said spools.

2. In a camera, a spool holding means including a spring arm of T-form, the leg of said arm being secured to the camera frame, and the branches respectively engaging the ends of two spools, and an arm for engaging the opposite end of one of said spools, in combination with means for engaging the opposite end of the other of said spools.

3. In a camera, spool holding means in ed to project through the camerabox and to,

respectively engage the ends of two spools,

and means for supporting the opposite; end

Copies of this patent may be obtained for of said spools, in combination with means for. engaging'the opposite end of the other of said spools.

In testimony whereof I have signed the 10 specification.

I WALTER G. ORAMER.

five dents each, by addressing the Gommissioner of Patents,

Washington; If. 01

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