Dismiss
The InnovationQ application will be updated on Sunday, May 31st from 10am-noon ET. You may experience brief service interruptions during that time.
Browse Prior Art Database

Dog Clutch without Backcheck Mechanism

IP.com Disclosure Number: IPCOM000052568D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11

Publishing Venue

IBM

Related People

Authors:
Eskew [+details]

Abstract

The backchecking of dog clutches requires space and parts which may be in conflict with space limitations in typewriters. This clutching arrangement and cam/follower combination eliminates the need for complex backchecking assemblies. Dog clutches may be backchecked without the addition of a backcheck pawl and ratchet. When keylever 10 is depressed, latch 12 is rotated by means of link 14 which releases clutch ring 16 by a means that will be described below in more detail.