| 摘要 |
<p>The cine projector has an internal film reel and an external film reel at the rear of the projector, together with a function control for selectively rotating either reel for forward film transport, backwards film transport or film re-winding. The control shaft is associated with a pinion which is integral with a ratchet support. The ratchet pin abuts one or more projections of the internal film reel for drinving this in the forwards direction, or for engaging in an opening of a pulley wheel, for rotating the external film reel during backwards film transport and film re-winding. The pinion, the ratchet support, the internal film reel and the pulley wheel are mounted on a common shaft.</p> |
