Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – Cartridge system
Patent
1993-07-15
1995-10-31
Jillions, John M.
Winding, tensioning, or guiding
Unwinding and rewinding a machine convertible information...
Cartridge system
2425871, G03B 1726
Patent
active
054622409
ABSTRACT:
A photographic film cassette assembling method includes the steps of joining shell halves together by ultrasonic welding, to form a cassette shell, while accommodating a spool in the cassette shell. A film connection sheet is secured to the spool before the spool is mounted in the cassette shell. A free end of the film connection sheet is placed outside the cassette shell through a film passage mouth of the cassette shell. A strip of a photographic film is connected to the spool by attaching a trailing end of the photographic film to the free end of the film connection sheet and wound about the spool by rotating the spool. The photographic film may be directly secured to a spool having an engaging member formed therein and a film guide member formed integrally therewith. A free end or free ends of the guide member protrude slightly from the film passage mouth to the outside of the cassette shell. The trailing end of the photographic film is guided along the film guide member into the cassette shell toward the engaging member of the spool, thereby to bring the end of the photographic film into engagement with the engaging member.
REFERENCES:
patent: 2616634 (1952-11-01), Melkon
patent: 2662696 (1953-12-01), Nerwin
patent: 2719679 (1955-10-01), Nerwin et al.
patent: 3003712 (1961-10-01), Dalton
patent: 3640480 (1972-02-01), Schleich
patent: 4166588 (1979-09-01), Krehbiel et al.
patent: 4733777 (1988-03-01), Geyte et al.
patent: 4834306 (1989-05-01), Robertson et al.
patent: 4955555 (1990-09-01), Pierson et al.
Esaki Toshiro
Sato Susumu
Shimizu Makoto
Suzuki Mituru
Takahashi Kohichi
Fuji Photo Film Co. , Ltd.
Jillions John M.
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