Apparatus and method for moving film

Photography – With film drive – Mechanical detail

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Details

G03B 118

Patent

active

056406371

ABSTRACT:
An apparatus including a camera body adapted to receive a thrust film cartridge, a thrust spindle for engagedly receiving a thrust cartridge spool, a take-up spool, and a mechanism for simultaneously driving both the thrust spindle and the take-up spool in an advance direction such that a surface speed of the take-up spool is faster than a surface speed of film being thrust from the thrust cartridge. A first one-way clutch is operatively positioned between a drive mechanism and the thrust spindle, and a second one-way clutch is operatively positioned between the drive mechanism and the take-up spool. A rewind spindle engagedly receives the thrust cartridge spool, and a rewind mechanism drives the rewind spindle in a rewind direction. A third clutch is operatively positioned between the rewind knob and the rewind spindle.

REFERENCES:
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patent: 5353078 (1994-10-01), Aoshima
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patent: 5437416 (1995-08-01), Ezawa et al.

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