Device for locking on their driving shafts kinematographic film spools

Abstract

Abstract 600,158. Kinematograph apparatus. DEBRIE, A. L. V. C. Sept. 28, 1945, No. 25285. Convention date, July 30, 1943. [Class 97 (i)] A device for securing a kinematograph spool to its spindle includes key-like members which can be retracted, within the shaft to allow the spool to be placed in position and then be moved radially outwards and axially to retain one of the spool flanges against a stop provided on the spindle. In the form shown, the keylike members are the bent-out portions 8, 8<1> at the ends of a U-shaped spring 7 inserted in the hollow spindle 1. A member 13, with knurled head 17 is screw-threaded into the end of the spindle and as it is screwed in its coned end 15 forces the ends of the spring apart, the portions 8, 8<1> emerging through slots. The annular end face 14 of the screw then forces the spring 7 inwardly against the spring 10 until the portions 9, 9<1> engage the spool 2 and bring its flange against the flange 3 on the spindle. The portion 4 of the spindle is squared. The ends 18, 18<1> of the spring 7 prevent complete withdrawal of the screw 13. In another embodiment, two cams, pivoted together, are contained within the spindle and normally retracted within the spindle, but can be pivoted outwardly and axially by a cone-ended screw as described above.

Inventors

No inventors recorded.

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