Browse Prior Art Database

Keyboard Lock Mechanism

IP.com Disclosure Number: IPCOM000093038D
Original Publication Date: 1967-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Davidge, RV: AUTHOR

Abstract

A mechanical keyboard 1, like that described in IBM Customer Engineering Instruction Manual Form Part No. 241 -5032-2, published January, 1966 by International Business Machines Corporation, Armonk, New York, is locked through ball interlock 2. Shift keylever 3 is returned to lower case position to avoid typing errors during remote input operation.

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Keyboard Lock Mechanism

A mechanical keyboard 1, like that described in IBM Customer Engineering Instruction Manual Form Part No. 241 -5032-2, published January, 1966 by International Business Machines Corporation, Armonk, New York, is locked through ball interlock 2. Shift keylever 3 is returned to lower case position to avoid typing errors during remote input operation.

Remote input operation is identified by actuation of solenoid 4 which pivots links 5 and 6 clockwise. Link 5 rotates, locking bell crank 7 counterclockwise, bringing control finger 8 into the ball interlock 2. Link 6 acts against pin 9 to pivot shift latch 10 counter-clockwise off of latching surface 11. Thus, when the machine is under the control of a remote data source, its operation is not confused by an erroneous manual key entry and it is free to respond to shift data as received.

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