Stylus manufacturing apparatus and method

Details Stylus manufacturing apparatus and method Stylus manufacturing apparatus and method

1983-03-23

1985-01-01

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51209R, 51281R, 51325, 369 71, 369277, B24B 4900

Patent

active

044909454

ABSTRACT:
A keel-tipped stylus for playback of video information from a disc record is formed on a lapping disc having a spiral signal track on the land between a spiral lapping groove. The respective pitches of the signal track and groove are different whereby the signal track and lapping groove cross each other. A playback stylus riding in the groove will detect a signal from the track to monitor the lapping process.

REFERENCES:
patent: 528273 (1894-10-01), Lioret
patent: 915936 (1909-03-01), Cheney
patent: 1303074 (1919-05-01), Leake
patent: 3842194 (1974-10-01), Clemens
patent: 4104832 (1978-08-01), Keizer
patent: 4328646 (1982-05-01), Kaganowicz
patent: 4369604 (1983-01-01), Kaganowicz

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