US Patent: 317,049
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| Roller Holder for Photographic Films
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Patentees:
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| William H. Walker (exact or similar names) - Rochester, Monroe County, NY |
| George Eastman (exact or similar names) - Rochester, Monroe County, NY |
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Patent Dates:
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| Applied: |
Aug. 08, 1884 |
| Granted: |
May 05, 1885 |
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Patent Pictures:
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Joel Havens
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Description: |
| The Eastman Dry-Plate & Film Co. was the predecessor to the Eastman Kodak Co.
Abstract:
Our present invention relates to an improved apparatus for exposing sensitive photographic films in the camera, which apparatus is fully described in the accompanying specification and the novel features.
Claim:
The combination, in an apparatus for exposing sensitive flexible photographic films, of two parallel rollers for operating the film, one of which is provided with a brake or friction device, while the other has applied to it a spring, which maintains the film in tension. |
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