Abstract: In a camera, a take-up spool clutch assembly (34) is provided with delayed engagement by disposing a clutch spring (32) between a take-up spool (10) and a drive gear (30). The clutch spring (32) engages a lug (46) on a hub portion (40) of the take-up spool (10) with a second end (64) to drive the take-up spool (10) in the take-up direction (36) when the drive gear (30) engages a first end (60) of the clutch spring (32). Before the take-up spool (10) can rotate in the take-up direction (36) after being rotated in the rewind direction (37), the drive gear (30) must complete substantially one revolution to re-engage the second end (64) of the clutch spring (32) into driving engagement with the lug (46). The time interval consumed by the single revolution of the drive gear spool (30) is sufficient to allow a planetary clutch (90) to disengage a rewind gear (97) and engage a thrust gear (96) with a supply spool (79).

Abstract: Disclosed is a camera with a motorized film transport for advancing a filmstrip out of and back into a film cassette and with an alternative manual film rewind to be used in case of a malfunction of the motorized film transport resulting from a film jam, for example.

Abstract: A takeup spool drive for motorized camera film winding mechanisms and the like has a clutch mechanism with simplified components including a driver, a driven member such as a pinion gear and a takeup spool. The driver has lugs that drive the pinion gear in both directions with lash. Fingers on flexing arms of the driver engage internal teeth of the takeup spool to drive it in a forward film takeup direction. The fingers are disengaged by lash takeup in the reverse direction that causes inward flexing of the arms and allows free running of the spool. In addition to selective engaging and declutching drive of the takeup spool, the mechanism fingers re-engage the internal teeth upon momentary forward rotation for lash takeup and thereby lock the free running takeup spool when the motor is stationary after a winding movement, such as when the film registers in a film gate.

Abstract: A film metering mechanism has parallel pawl and blade elements with apertures that align in the beam of an infrared detector to slow down a camera drive motor when a pawl tooth senses a perforation during film advance, prior to reaching a drive motor stopping point. The pawl has a cutout with upper longitudinal and ramp surfaces that engage a fixed pin. The blade has a stepped surface that shifts contact between two pawl pins in correspondence with the relative location of the cutout surfaces and the fixed pin.