Demand drive component

Details Demand drive component Demand drive component

1980-10-27

1982-09-21

Christian, Leonard D.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

Including details of roll or mount

242209, B65H 1720

Patent

active

043502784

ABSTRACT:
A drive puck for use as a component in a demand drive system is disclosed herein in which a film roller is resiliently centered on a rotating drive shaft so that the tension of a film strip carried thereon selectively causes engagement of the film roller with the drive puck. The puck is secured to the drive shaft so as to rotate therewith and is provided with an external tread which projects into a lateral cavity of the film roller so as to engage with the underside of the film roller in response to the resilient centering movement of the film roller.

REFERENCES:
patent: 3253758 (1966-05-01), Horiuchi
patent: 3441463 (1969-04-01), Buck
patent: 4215827 (1980-08-01), Roberts et al.

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