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Browse Prior Art Database

Drive

IP.com Disclosure Number: IPCOM000094648D
Original Publication Date: 1965-Apr-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Lyon, JL: AUTHOR

Abstract

The mechanism selectively positions and detents a member at any one of four positions in either positive or negative directions from a home position. Such is effected by rotational movement of clutch 1 through tape 2 attached to member drive rod 3.

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Drive

The mechanism selectively positions and detents a member at any one of four positions in either positive or negative directions from a home position. Such is effected by rotational movement of clutch 1 through tape 2 attached to member drive rod 3.

Linkage couples detent 4 with clutch pushrod 5 so that, in the home position, 1 is disengaged when 4 is engaged with 3. However, in any other position, 1 remains continuously engaged even when 4 is engaged.

To move the member 3 from the home position, air pressure is removed from the detent cylinder to retract 4 and 5. Spring biasing causes sliding clutch dog 6 to engage one-tooth ratchet 7. This is then servo driven in the required direction to a selected stop position. Air pressure is again applied to engage 4, but 5 cannot disengage the clutch. This is because the high contacting portion of the clutch slide 8 has been rotated away from the pushrod 45 degrees, 90 degrees, 135 degrees, or 180 degrees in one direction or the other.

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