Typewriter cartridge lock-down

Details Typewriter cartridge lock-down Typewriter cartridge lock-down

B - Operations, Transporting

41

J

197/106

B41J 35/22 (2006.01) B41J 32/00 (2006.01) B41J 35/28 (2006.01)

Patent

CA 1141322

TYPEWRITER CARTRIDGE LOCK-DOWN Abstract of the Disclosure In a typewriter, a ribbon is contained within a cart- ridge which is in turn placed upon the ribbon mechanism support of the typewriter. The cartridge is maintained rigidly clamped to the support but readily releasable by means of operator actuation of a release lever. The cartridge may either be a single cartridge or may be stacked such as where two cartridges are utilized together, one containing a print ribbon, the other containing, for example, a correction ribbon. The cartridge containing the print ribbon is provided with a bottom plate or surface which is formed to define an aperture therein for the admission of a clamping member attached to the support. The clamping member is inserted into the aperture and then caused to rotate about its axis a part turn at which point the clamping member engages an inclined surface on the interior of the cartridge causing the cartridge to be wedged downward against the support. In so wedging, the hold down mechanism is capable of retaining the cartridge in a fixed position to oscillate with the support. LE9-78-026

363533

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