Browse Prior Art Database

Integral Emitter and Handwheel

IP.com Disclosure Number: IPCOM000074323D
Original Publication Date: 1971-Apr-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Lagergren, RE: AUTHOR [+3]

Abstract

The wheel 10, in conjunction with a reluctance probe 12, provides a timing signal; and the wheel is smooth on its outer surfaces so as to function as a handwheel.

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Integral Emitter and Handwheel

The wheel 10, in conjunction with a reluctance probe 12, provides a timing signal; and the wheel is smooth on its outer surfaces so as to function as a handwheel.

The wheel 10 is formed by a spur gear 14 which has plastic facings 16 and 18 molded onto its sides. The plastic is molded between teeth 14a of gear 14, so that the outer surfaces of teeth 14a and the plastic molded therebetween form a substantially smooth outer surface of wheel 10. Wheel 10 is mounted within a machine frame 20, and wheel 10 protrudes only partially from the frame. Probe 12 is mounted in frame 20 and is disposed adjacent the outer surface of wheel
10. As teeth 14a pass probe 12 they generate a pulsed timing signal in probe
12. The plastic not only provides the facings 16 and 18 for additional gripping surface, but it covers the sharp edges of teeth 14a by being disposed within the spaces between the teeth for safe operation. Access to the handwheel is provided from the open side of frame 20. A timing belt pulley 22 is molded integral with facings 16 and 18, and belt 24 meshes with pulley 22 for driving the pulley and handwheel-emitter combination.

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