Manual film retrieval

Details Manual film retrieval Manual film retrieval

1977-01-10

1978-05-16

Haroian, Harry N.

Advancing material of indeterminate length

By intermittent material-mover

Manual material-mover

226108, 226143, 226154, 353 95, 353122, B65H 1726, G03B 2100

Patent

active

040894509

ABSTRACT:
Apparatus whereby a filmstrip operator can conveniently reestablish the engagement between a sprocket and an overdriven filmstrip in a filmstrip projector. The projector operator manipulates a thumb wheel to cause a roller to come into contact with a surface portion of the filmstrip, and to cause the roller to rotate thereby causing longitudinal displacement of the filmstrip in a film track. The trailing edge of the filmstrip is displaced towards the sprocket to facilitate reengagement of the filmstrip with the sprocket.

REFERENCES:
patent: 1553906 (1925-09-01), Marette
patent: 2941737 (1960-06-01), Jones

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