Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1987-10-28
1989-05-16
Jillions, John M.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
206409, 354275, 242 5553, G03B 1726
Patent
active
048303054
ABSTRACT:
In a room-light load cassette, a web of photographic material is wound on a reel core, and the core is rotatably supported, by means of two core hubs, in hub seats provided in two opposite cassette end walls of a light-tight casing. Each of the hubs which are firmly mounted in the core, comprise a hollow sleeve part which is supported in the respective hub seat. In order to secure the web roll of photographic material in the cassette against unwinding during shipping and storage, a core lock comprising a locking member is provided in one of the end caps. The locking member bears an external gear and is connected via connecting means breakable at a desired rupturing zone, with the hub seat of the respective end cap. The teeth of the external locking member gear engage an internal gear in a sleeve part being part of the corresponding core hub, and prevent the core from rotating as long as the connecting means, preferably in the form of small stays, between the locking member and the hub seat remain unbroken.
REFERENCES:
patent: 2905405 (1959-09-01), Burton et al.
patent: 3612424 (1971-10-01), Friedel
patent: 3613876 (1971-10-01), Kohler et al.
patent: 3613880 (1971-10-01), Perrin
patent: 3784001 (1974-01-01), Bushnell et al.
patent: 4034929 (1977-07-01), Ebner, Jr.
patent: 4272035 (1981-06-01), Sherman et al.
patent: 4291802 (1981-09-01), Buelens
patent: 4403845 (1983-09-01), Buelens et al.
patent: 4597658 (1986-07-01), Buelens et al.
patent: 4671409 (1987-06-01), Espy
Research Disclosure, 4244, No. 16352 (11/77).
Gervais Fernand
Guggi Markus
Ciba-Geigy AG
Falber Harry
Jillions John M.
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