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Gimbaled Magnetic Hand Scanning Probe

IP.com Disclosure Number: IPCOM000078798D
Original Publication Date: 1973-Mar-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 57K

Publishing Venue

IBM

Related People

Hickox, TA: AUTHOR [+2]

Abstract

This probe structure 10 affords 15 degrees of tilt in all directions, while maintaining light pressure contact with a magnetic record.

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Gimbaled Magnetic Hand Scanning Probe

This probe structure 10 affords 15 degrees of tilt in all directions, while maintaining light pressure contact with a magnetic record.

The probe 10 has an upper barrel 12 generally tubular at the bottom and preferably tapered at the top, not shown, to an elongated cone providing balance in the hand of an operator. A barrel extension 14 is undercut at the upper end to fit snuggly in the lower end of the barrel 12. The lower extremity of the extension 14 is rounded for minimum contact with a nosepiece 16, generally ballshaped, and having the lower extremity undercut and rounded for minimum contact with the record. The nosepiece 16 is bored for receiving a cylindrical nonmagnetic carrier 18 and a magnetic transducer 20 mounted in the carrier. A light compression spring 26 is captured in the base for urging the carrier and transducer downward. A slot 22 is milled across the carrier 18 into which a pin 24 is arranged, to limit the downward travel of the carrier 18 and transducer 20, so that the transducer just protrudes slightly below the rim of the nosepiece 16.

A link 28 and a light tension spring 30, anchored by a bar 32 resting in notches in the upper end of a tubular member 34, is provided to urge the nosepiece 16 against the end of the extension 14 in all positions of the nosepiece
16. A spacer 36 is held in slots in the nosepiece 14 by wedges 38, 39, shown here as being of transparent material for clarity. This construction...