US Patent: 822,437
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| Photographic Developing Apparatus
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Patentee:
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| George Eastman (exact or similar names) - Rochester, Monroe County, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 10, 1904 |
| Granted: |
Jun. 05, 1906 |
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Patent Pictures:
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Joel Havens
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Description: |
| Abstract:
My present invention relates to photographic developing apparatus in which photographic film may be developed or toned by m 5 the usual chemical agents or solutions which are caused to flow continuously into engagement therewith during the developing operation by suitable mechanical devices; and my invention has for its object to provide an apparatus in which a plurality of developing machines or receptacles may be arranged and operated either together or separately by a single operating device.
Claim:
A photographic developing apparatus comprising a closed receptacle adapted to contain a sensitized film and a developing agent, a reservoir supported above the receptacle a supply-pipe leading thereto and means for controlling the passage of liquid therethrough. |
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