| 摘要 |
<p>It is known to use the leading edge of a film strip to guide the strip through processing apparatus. However, this leading edge may be damaged as the film is loaded into and unloaded out of a camera. Described herein is a film unloading device in which a curved guillotine blade (240) is used to provide a newly cut leading edge by which a film strip can be guided through processing apparatus. The guillotine blade (240) is reciprocated between a rest and an operative position by a motor which operates in one direction only. The blade (240) is mounted on a rotating drum (250) by means of a crank pin (258), the drum being rotated through 180 DEG , in the direction indicated by arrow 252, to move the blade (240) from its rest to its operative position and then through a further 180 DEG to move the blade (240) back to its rest position. <IMAGE></p> |
