Browse Prior Art Database

Key Lever

IP.com Disclosure Number: IPCOM000096879D
Original Publication Date: 1962-Jan-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Blumenstetter, R: AUTHOR [+3]

Abstract

The typewriter keylever can be depressed, beyond a pressure point, to a second level. It is used in power driven typewriters to achieve single or repeat impact operations.

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Key Lever

The typewriter keylever can be depressed, beyond a pressure point, to a second level. It is used in power driven typewriters to achieve single or repeat impact operations.

In recess 101 of keylever 2, an initially tensioned pressure spring 103 is held between two lugs. In its inoperative position keylever 2 is pulled against stop 106 by return spring 104 which is hooked into guide comb 33. For operation the keylever is normally depressed until pressure spring 103, which projects on both sides of keylever 2, seats on the bent portion 33a of the guide comb. In addition the lever can be depressed, against the force of pressure spring 103, to a second level until keylever 2 hits against the end 33b of the slot in guide comb 33.

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