Shure Brothers Incorporated

Allen R Groh

Lawrence R Happ

Joseph D Kehl

Frank J Karlov

A phonograph stylus protection mechanism includes a protective zone defining member and a stylus deflector. The deflector moves the stylus to the protective zone during lateral deflection of the stylus to prevent stylus and record damage.

Stylus protection mechanism

A magnetic stereo phonograph pick-up cartridge is disclosed. An elongated stylus and an attached permanent magnet are resiliently supported by a molded rubber bearing block which surrounds the magnet and engages under compression with the inner side-walls of a stylus housing sleeve. The molded block is shaped to also serve as a cantilevered inertial damping member which is held in mechanical contact with the magnet. The bearing portion of the block is fabricated from a first material exhibiting high compliance and the inertial damping portion of the block is fabricated from a second material exhibiting high damping characteristics, especially in the high audio frequency range.

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Buffalo Grove, IL, United States of America

Allen R Groh