AUTOMATISCHE AUFZUGSVORRICHTUNG FUER EINE KAMERA

摘要

The film is wound on immediately after an exposure has been made, and the mechanism is then latched in position until the next exposure has been made. then the latch is released magnetically for the film to be wound on again. Jamming of latches can often be attributed to the motor holding the mechanism too firmly at the end of its travel. To avoid this, the film is first over-wound, and then the electric motor short-circuited with a diode, so that no resistance is offered to the elastic recoil the overwinding induces. This recoil ensures that the latch will not bind.