B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
74/65, 197/77
B41J 1/60 (2006.01) B41J 7/58 (2006.01) B41J 19/20 (2006.01) B41J 23/14 (2006.01) F16H 25/14 (2006.01)
Patent
CA 1061272
BALL AND GROOVE MOTION CONVERTING APPARATUS AND TYPEWRITER SELECTION APPARATUS EMBODYING SAME Abstract of the Disclosure A selection mechanism is disclosed which greatly simplifies the selection controls for a single element typewriter and thereby adapts it for inexpensive manufacture and reliable operation. A single continuous groove in the cylindrical periphery of a rotating shaft provides a universal surface similar to a cam surface to translate a follower member in a coaxial direction with respect to the rotating shaft and thus provide a linear movement which may be controlled in displacement and thus provide a defined or controlled input which in turn may be converted to a rotary motion for the typehead. The follower block is prevented from traversing any further than that distance which is desired and the follower is relieved by a spring bias member to allow it to ride out of the groove and thus allow the follower block to only traverse as far as permitted for a particular character selection.
254967
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