Externally driveable cassette for photosensitive web material, w

Cutting – With means to guide moving work – Adapted to permit maneuvering of work at tool zone

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Details

396445, 83650, B26D 100

Patent

active

058650849

ABSTRACT:
A cassette (10) for photosensitive web material includes a hollow housing (12) having a peripheral wall (16); an exit slit (42) extending through the peripheral wall; a device (20), located within the housing, for rotatably supporting a roll (22, 24) of web material; a mechanism (32, 38), located within the housing, for engaging a lead end (26) of a web material to drive the web material through the exit slit; a knife blade (134, 136) having a cutting edge (138) extended at an acute angle to the exit slit; a recess (132) for slidably mounting the blade for movement between a first position in which the exit slit is open, and a second position in which both the web material has been cut by the cutting edge and the exit slit has been closed by the blade to prevent entry of light into the housing through the exit slit; and a knife bed (142, 144) fixedly mounted on the housing, the blade being in sliding engagement with the knife bed, whereby the blade and the knife bed cooperate to scissor the web material as the blade moves to the second position, thereby cutting the web material and leaving a cut end of the web material inside the housing behind the exit slit closed by the blade.

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