B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
197/94
B41J 32/00 (2006.01) B41J 33/52 (2006.01)
Patent
CA 1134769
RIBBON CARTRIDGE INCLUDING HUB BRAKE Abstract of the Disclosure A ribbon cassette or cartridge comprising a housing having a hub element supporting a core having a ribbon wound thereon, such as a typewriter or printer ribbon, and adapted to releasably engage said core for rotation thereon. The hub element comprises at least two portions, at least one portion being fixed to the housing of said cassette or cartridge, and at least one or other portion which is attached for movement between locking position, in which it makes frictional engage- ment with the ribbon core to substantially prevent rotation of said core on said hub element, and release position in which it is moved out of frictional engagement with said ribbon core to permit rotation of said core on said hub element. The moveable hub portion comprises an arm which extends there- from beyond the outer circumference of the wound ribbon and which is adapted to be engaged by the free end of the ribbon, during unwinding thereof, to move said other hub portion to release position to release the frictional engagement between the hub and core when tension is applied to withdraw said ribbon from said core.
382619
Canada Carbon And Ribbon Company Limited
Smart & Biggar
LandOfFree
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