Hysteresis clutch for film winding

Details Hysteresis clutch for film winding Hysteresis clutch for film winding

1974-09-27

1976-01-27

McCarthy, Edward J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

B65H 1904

Patent

active

039348334

ABSTRACT:
This invention relates to a permanent magnet hysteresis clutch means to transmit torque from a driving mandrel to a film strip winding bobbin or core, and more particularly to a plurality of hysteresis clutch means which are arranged in spaced array to simultaneously transmit torque to a plurality of film winding bobbins where the bobbins are of varying widths.

REFERENCES:
patent: 1236965 (1917-08-01), Miller
patent: 2310153 (1943-02-01), Rosenfarb
patent: 2746691 (1956-05-01), Hood
patent: 3622096 (1971-11-01), Young
patent: 3712554 (1973-01-01), Lorenzini

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