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Electrical Trip Mechanism for Solenoid Driven Keyboard

IP.com Disclosure Number: IPCOM000085678D
Original Publication Date: 1976-May-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Schmidt, JA: AUTHOR

Abstract

An electrical feedback signal is generated to logically define the time when the solenoid which drives the keyboard of a printer is energized.

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Electrical Trip Mechanism for Solenoid Driven Keyboard

An electrical feedback signal is generated to logically define the time when the solenoid which drives the keyboard of a printer is energized.

The mechanism includes a small permanent magnet 11 which is mounted to the lower front surface of cycle bail latch 13 and reed switch 15 mounted to the bottom of clutch latch bracket 17. Each time any interposer 19 is dropped into the ball tube, not shown, cycle bail latch 13 and cycle bail 21 rotate clockwise into the clutch latch bracket stop 17, closing reed switch 15 and completing the signal circuit. Cycle bail latch 13 remains against bracket stop 17 until the solenoid, not shown, drives the interposer 19.

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