Motor drive device for a long film

Details Motor drive device for a long film Motor drive device for a long film

1980-12-03

1983-05-31

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

354212, G03B 104

Patent

active

043857353

ABSTRACT:
A motor drive device for a long film which is provided with a take-up shaft having a coupling portion at one end thereof and an extraneously operable take-up knob at the other end thereof and in which the engagement and disengagement between the spool shaft in a film magazine and the coupling portion is made possible by axial sliding movement of the take-up shaft and film take-up is effected by rotating the take-up shaft by a motor has a biasing member for normally biasing the take-up shaft in a direction in which the coupling portion engages the spool shaft.

REFERENCES:
patent: Re26181 (1967-04-01), Harvey et al.
patent: 1201002 (1916-10-01), Treadaway et al.
patent: 1501677 (1924-07-01), McMahon
patent: 2581691 (1952-01-01), Moomaw et al.
patent: 3491957 (1970-01-01), Sawada et al.
patent: 3651747 (1972-03-01), Kimura
patent: 3679148 (1972-07-01), Daitoku et al.
patent: 3783762 (1974-01-01), Sugimori
patent: 4145011 (1979-03-01), Date

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