A system to provide automatic movement of advance to the charcoals of arco flashlights for cinematographic and similar projection (Machine-translation by Google Translate, not legally binding)

摘要

System for providing automatic advance movement to the cores of the arc flashlights for cinematographic projection and the like, consisting essentially of coupling to the usual mechanism of advance of the trolleys made up of a spindle provided with a double threading in the opposite direction one or more ratchet wheels actuated by two triggers provided with the appropriate swinging movement thanks to the action of a cam or eccentric which is activated in turn by the rotation of an axis that through appropriate transmissions receives a movement from one of the moving elements of the projector itself or by an independent motor. (Machine-translation by Google Translate, not legally binding)