Cinematograph film transport mechanisms

Cinematograph film mechanism for a cinematograph projector including a projector mechanism for transporting film through a projection gate and a film take-up mechanism for spooling the projected film thereafter, the said projector mechanism and said take-up mechanism being independently driven by projector and take-up electric motors, in which the two motors are sequentially energized by sequentially operating electrical switch means, the take-up motor being a torque motor, the take-up motor supply circuit including a gradually decreasing electrical power-limiting temperature-sensitive resistor having a falling resistance characteristic with temperature rise due to electrical energy current-flow therein and is electric current series-connected in the take-up motor supply circuit, the sequentially operating switch means comprising a first switch means for energizing the take-up motor before energization of the projector motor and by way of the power-limiting element, and second switch means for subsequently energizing the projector motor and for excluding from electrical circuit the take-up motor power-limiting resistor, and where the sequentially operating switch means further comprises a manually operated START switch connected to actuate a first relay for closing the said first switch, to energize the said take-up motor, and connected to energize an electrical delay relay for delayed closing of the said second switch, to energize the said projector motor, and for delayed closing of a third switch for short-circuiting of the said temperature-sensitive series resistor.