Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1988-01-22
1988-12-13
Mathews, A. A.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
354322, 307 64, G03D 313
Patent
active
047914432
ABSTRACT:
A photographic film processor having a controller and a drive motor for conveying exposed film from a spool and along a film path through a series of process stations is disclosed. The photographic processor includes: a main power supply and an auxiliary power supply for the processor; a selector switch normally operable to apply main power to the processor and alternatively operable to apply auxiliary power to the processor in the event of an interruption in main power; and a film cutter mechanism including a guillotine blade reciprocable relative to a stationary shear block in the film path, a latch to hold the blade in a ready position, a trip lever responsive to an unwound film spool being pulled against it to release the latch and blade, and a spring to drive the blade through a cutting stroke for cutting the spool from the film, whereby the processor is powered, in the event of an interruption of main power, to finish processing any film which is already in process.
REFERENCES:
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Blackman Robert J.
Foley Walter D.
Brandt Jeffrey L.
Eastman Kodak Company
Mathews A. A.
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