Typewriting machines – Key-board or key lever-actuating mechanism – Including mechanism for activating keys
Patent
1982-08-24
1984-09-04
Wright, Jr., Ernest T.
Typewriting machines
Key-board or key lever-actuating mechanism
Including mechanism for activating keys
400 62, 400474, 400478, B41J 508
Patent
active
044694610
ABSTRACT:
A low profile keyboard actuator for a typewriter in which L-shaped levers are pivotally mounted on a transverse shaft mounted immediately in front of the typewriter. The levers have generally horizontal arms of various lengths, the ends of which contact the keys of the various rows of the keyboard. The levers have depending arms of uniform length and are resiliently biased to depress the keys. A common operating bar bearing against the depending arms cyclically permits the levers to depress the keys and then restores the levers to the original position where no key is depressed; however, depression of all but a selected key is inhibited by a plurality of vertically superposed, transversely shiftable, binary-coded slides having teeth which bear against all depending arms except that one corresponding to the selected key. An electric keyboard mounted above the horizontal arms provides signals which shift the slides and actuate the common operating bar to permit depression of a corresponding key of the typewriter. These signals are alternatively provided from a data source for automatic operation of the typewriter.
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Savin Corporation
Wright, Jr. Ernest T.
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