Cartridge with removable take-up sub-cartridge

Details Cartridge with removable take-up sub-cartridge Cartridge with removable take-up sub-cartridge

1974-05-28

1976-05-11

Christian, Leonard D.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

242 56R, 352 72, G03B 104, G11B 1532, G11B 2304

Patent

active

039557790

ABSTRACT:
A cartridge primarily for microfilm, or cassette, contains a supply reel and a sub-cartridge take-up means. Suitable guides in the cartridge or cassette automatically thread film from the supply reel past a cutter and into the sub-cartridge. To remove exposed film before the supply reel is exhausted, the cutter is operated, and the sub-cartridge is removed and replaced. The nature of the cutter and threader depends upon costs and convenience. At one extreme, they may be hand operated devices and at the other extreme automatic or a remotely controllable device.

REFERENCES:
patent: 2298574 (1942-10-01), Lockhart
patent: 2661164 (1953-12-01), Badmaieff
patent: 2911161 (1959-11-01), Proctor
patent: 3499376 (1970-03-01), Swift
patent: 3691921 (1972-09-01), Isbell
patent: 3783763 (1974-01-01), Whitely et al.

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