Light-tight cassette

Claim 1

A light-tight cassette for holding a roll of light-sensitive photographic material comprising: an extruded generally square tubular body portion, which is of resilient material, said body being open at both of its ends and having adjacent one corner a slit extending the entire axial dimension thereof, the edges of said slit having integral tongues projecting in generally parallel relation inwardly of said corner, to define a narrow egress opening for passage of said material out of the cassette, a shaped end cap for closing each such open end of said body portion, said cap having uniformly spaced outer and interior flanges extending around its periphery to form a channel engaging the end margins of said body portion periphery to compress the same to render said cassette light-tight at said open end when the cap is in position, said interior flange having inwardly projecting extensions along at least the corner portions thereof substantially past the interior limits of the outer flange, one of said corner extensions being interrupted to receive the end portion of said inwardly projecting tongues therebetween, said cap having an inwardly projecting hub for rotatably supporting the roll of photographic material, the axial dimension of said hub exceeding the axial dimension of said channel, and strips of compressible material which are fitted to the mutually facing surfaces of said tongues which form said egress opening, thereby to render said cassette light-tight also over its length when said cap is in position.