Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1981-11-27
1987-11-24
Whitehead, Harold D.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
511314, B24B 3704
Patent
active
047079487
ABSTRACT:
Described is a technique and associated fixture for lapping magnetic recording heads in a group such that each head is mounted on a "free floating" part in the fixture, being biased for lapping only by the weight of this part and being individually removable during lapping mode; and also characterized by capability for pivoting the fixture to change the lap-angle of all such heads in common to a new constant prescribed angle, the parts also being selectibly kept non-rotatable in the fixture.
REFERENCES:
patent: 426671 (1890-04-01), Macbeth
patent: 1467992 (1923-09-01), Becker
patent: 2634558 (1953-04-01), Wolfskill
patent: 2722089 (1955-11-01), Boettcher
patent: 2979868 (1961-04-01), Emeis
patent: 2983086 (1961-05-01), Chapelle
patent: 3867797 (1975-02-01), Meier
Fuchs Otto
Schindler Abbott M.
Cass Nathan
McCormack John J.
Peterson Kevin R.
Unisys Corp.
Whitehead Harold D.
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