Spool, cartridge and method for fastening a photographic film

Details Spool, cartridge and method for fastening a photographic film Spool, cartridge and method for fastening a photographic film

G - Physics

03

B

95/72, 242/61.01

G03B 17/26 (2006.01) G03B 17/30 (2006.01)

Patent

CA 1319291

Spool, Cartridge and Method for Fastening a Photographic Film ABSTRACT OF THE DISCLOSURE In a photographic cartridge, the photographic film, - comprising a full-width main portion and a reduced- width leader portion formed at one end of the film it- self -, is wound up on a winding-up spool according to a method including the steps of: - introducing the leader portion into a longitudinal slit formed in the spool, - making an end region of the leader portion provided with hooking holes to hook to hooking means pro- vided in the slit, - winding up the film on the spool, characterized by the fact of producing a transversal region of relative weakness in the leader portion, near the main portion of the film.

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