H - Electricity – 04 – L
Patent
H - Electricity
04
L
197/30
H04L 17/18 (2006.01) B41J 25/02 (2006.01) B41J 29/02 (2006.01)
Patent
CA 1114321
ABSTRACT OF THE DISCLOSURE An electric typewriter of the type having individual type elements for each character has attached thereto a system for controlling the actuation of the type elements and the control functions of the typewriter by digital signals. The digital signals may emanate from a remote central pro- cessing unit or other device. The control system is an attachment to the typewriter which does not interfere with the normal manual operation of the typewriter. The control system is mounted in a housing which is placed under the typewriter in predetermined alignment with the key lever actuation means and employs an electromagnetic actuator to set a condition for a mechanical actuator for each key lever. A mechanical actuator initiates a key stroke if the electro- magnetic actuator is positioned in an ON position and does not initiate a key stroke if the electromagnetic actuator is in the OFF condition. The electromagnetic actuator does not supply power for the key stroke operation but merely sets a condition for the mechanical actuator which initiates a key stroke through the typewriter key power drive to operate and print a character.
331787
Eggins Douglas W.
Wernsing William O.
LandOfFree
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