Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1977-11-21
1979-09-04
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51 65, B24B 702
Patent
active
041663420
ABSTRACT:
A machine with separate motion on two axes for toroidal polishing and gring of mirrors. The axes are at 90.degree. to each other and the amplitude of motion in each direction is independently adjustable. A portion of this machine can be modified to serve as an adapter unit that fits on standard polishing machines and can be removed leaving the standard machines able to function in the normal way. A gimbal assembly and stablizer bar are used to prevent twisting between a lens and a polishing surface.
REFERENCES:
patent: 974880 (1910-11-01), Hammett
patent: 2020312 (1935-11-01), Holman
patent: 2278314 (1942-03-01), Houchin
patent: 3782042 (1974-01-01), Strasbaugh
patent: 3875702 (1975-04-01), Yacos
Butler John D.
Shaffer Joseph J.
Pritchard K. G.
Sciascia R. S.
Skeer W. Thom
The United States of America as represented by the Secretary of
Whitehead Harold D.
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