Abstract: A cassette (10) has a tubular web core (12) onto which is wound a web (14) of photosensitive material to form a web roll. The web roll is housed within a substantially rectangular jacket (16) which has an exit slot (20) extending substantially from one side edge of the jacket (16) through which the web (14) may be drawn from the cassette (10). Moreover, cassette (10) comprises a pair of end caps (22) having tubular hub members (25) insertable into opposite ends of tubular core opening (39) defined by sleeve portion (38) of tubular web core (12) for rotatably supporting tubular web core (12). In the preferred embodiment, each hub member (25) has at least one flexible lock (44) at the free end thereof such that when the flexible lock (44) rotatably engages core grooves (36), separation of the end caps (22) from the jacket (16) is prevented.

Abstract: A method of preventing clockspringing of a web wound inside a cassette (10) having a tubular web core (12) onto which is wound a web (14) of photosensitive material to form a web roll. The web roll is housed within a substantially rectangular jacket (16) which has a exit slot (20) extending substantially from one side edge of the jacket (16) through which the web (14) may be drawn from the cassette (10). Moreover, cassette (10) comprises a pair of end caps (22) having tubular hub members (25) insertable over opposite ends of tubular core opening (39) defined by sleeve portion (38) of tubular web core (12) for rotatably supporting tubular web core (12). In the preferred embodiment, each hub member (25) has at least one flexible lock (44) at the free end thereof such that when the flexible lock (44) rotatably engages core grooves (36), separation of the end caps (22) from the jacket (16) is prevented.

Abstract: An improved light-tight web cassette 10 is disclosed for holding and dispensing a roll of photosensitive web material. The web cassette 10 comprises a tubular core 12 onto which a roll of web 14 material is wound. A jacket 16 surrounds the web roll and is provided with side edges 18. A pair of end caps 22 is provided, each end cap 22 having a central openings 28 and a peripheral recess 24 for receiving the end edges 18 of the jacket 16 in light-tight relation. A core plug 34 is provided for each end cap 22 which is adapted, when pressed through the central opening 28 into the tubular core 16 to an assembled position, to press and hold the end edges 18 of the jacket 16 into the recesses 24 of the end caps 22 in light-tight relation. Core plugs 34, moreover, holds the end caps 22 against the end of core 12.

Abstract: A cassette for wound web material has an anti-clockspringing mechanism for securing the web against movement during storage and shipment. The roll of web material is mounted on a tubular core (12) arranged to rotate with the roll of material within the cassette (10).The cassette (10) has a jacket (16), end caps (22), and core plugs (34) for securing the end caps (22) onto end edges (18) of the jacket cassette (10). Each of the end caps (22) has a plurality of radially extending spaced apart stop (32). The anti-clockspringing mechanism comprises an arm (56) on the core plug (34) movable between a core-blocking position in which the arm (56) extends into a space between two adjacent ribs (32) and is retained therebetween for preventing rotation of the web roll, and a core-unblocking position on which the arm (56) is disengaged from the ribs (32) for allowing web rotation.

Abstract: A light-tight cassette, and method of making same, for enclosing and dispensing a roll of photosensitive web material. The cassette comprises a folded fiberboard housing having a plurality of housing wall portions with oppositely projecting lateral edges which define opposite sides of the housing. The plurality includes two planar wall portions that extend perpendicularly to each other to respective ends thereof which are disposed in spaced alignment to provide an opening between them. Two extruded plastic light-locking members are attached to those wall portion ends, respectively, one such member extending across the opening toward the other member to form a web exit passageway therebetween. The one member includes a resiliently flexible, inwardly projecting cantilever portion that is biased toward an opposing portion of the other member, both such portions having light-locking material thereon.

Abstract: A light-tight cassette, and method of making same, for enclosing and dispensing a roll of photosensitive web material. The cassette comprises a folded fiberboard housing having a plurality of housing wall portions with oppositely projecting lateral edges which define opposite sides of the housing. The plurality includes two planar wall portions that extend perpendicularly to each other to respective ends thereof which are disposed in spaced alignment to provide an opening between them. Two extruded plastic light-locking members are attached to those wall portion ends, respectively, one such member extending across the opening toward the other member to form a web exit passageway therebetween. The one member includes a resiliently flexible, inwardly projecting cantilever portion that is biased toward an opposing portion of the other member, both such portions having light-locking material thereon.