| 摘要 |
1,217,368. Cinematographic control devices. TEVERAMA S.A. March 22, 1968 [March 24, 1967], No.14087/68. Heading G2E. The stopping, or reversal of the winding direction, of a cine projector is automatically controlled by means of two spaced independently movable contacts 4, 5 which sense and simultaneously enter a longitudinal slat 3 in the end of film 1, the spacing of the contacts being such that only one contact at a time may enter the film perforations 2, the control circuit being completed, through plate 7, only when slat 3 reaches the contacts. |
