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Remote control bifurcated typewriter keyboard (Universal input matrix switch)

  • US 3,990,565 A
  • Filed: 08/14/1974
  • Issued: 11/09/1976
  • Est. Priority Date: 08/14/1974
  • Status: Expired due to Term
First Claim
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1. An articulated typewriter having a body containing a printing mechanism in combination with a bifurcated keyboard disposed externally relative to the said body;

  • including means operatively connecting the keyboard and the printing mechanism electrically for operating the printing mechanism from the keyboard, wherein the printing mechanism includes a plurality of lever linkages, each terminating in a printing head, further including a series of solenoid operators, wherein each lever linkage is actuated by an associated solenoid operator to cause the printing head to move to its printing position, said keyboard comprising two units each having a set of buttons, wherein each set corresponds to the buttons normally actuated by a person'"'"'s left and right hand, said buttons coacting with said means to energize selectively each solenoid operator, wherein, each keyboard unit is used to energize respective selected solenoid operators, wherein, each keyboard unit is universally adjustable relative to the body, including an optical system mounted in said body and wherein the printing mechanism includes a printing roller mounted in the body, said system focusing on the portion of the roller being instantly used to receive printing from the head and transmitting a magnified view of the typed material to the operator of the keyboard units, wherein the keyboard units include a pair of similar brackets mounted on a front end of the body in spaced relationship symmetrical relative to the central axis of the body, said bracket being axially extensible and including a universal joint for rotating the unit about axis both normal and parallel to the longitudinal axis of the bracket whereby the units can assume horizontally adjacent positions and vertically adjacent positions, wherein the roller is mounted on a carrier vertically adjustable relative to the body further including a solenoid actuated mover in engagement with said carrier, said mover being actuated by said means when each said button is operated causing lowering of the rollers as the printing head is activated to printing position.

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