Escapement mechanism for typewriters

Details Escapement mechanism for typewriters Escapement mechanism for typewriters

B - Operations, Transporting

41

J

197/99

B41J 19/20 (2006.01) B41J 19/50 (2006.01)

Patent

CA 1089792

ESCAPEMENT MECHANISM FOR TYPEWRITERS Abstract of the Disclosure Disclosed is a mechanism for replacing the non-escape- ment magnet normally utilized to inhibit escapement during certain machine functions on a typewriter. A detent arm is connected to the normal pawl knock-off arm so that upon the print shaft rotating and effecting, by a cam thereon, movement of associated linkage and motion of the knock-off arm to disengage the pawl from the ratchet wheel, the detent arm associated with the knock-off arm detents the ratchet wheel and inhibits escapement thereof until the linkage and knock-off arm returns to its normal position by rotation of the print shaft. Thus, if the escapement magnet coil is not energized, the pawl associated with the magnet will return to its normal position and the ratchet wheel will, because of the detent of the member associated with the knock-off arm, be inhibited from motion.

293023

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