Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1977-10-03
1979-02-06
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
511345R, 5116592, B24B 4916
Patent
active
041376773
ABSTRACT:
A constant horsepower drive system for a grinding wheel includes a first motor and associated control for rotating the wheel at a constant peripheral or surface speed and a second motor and associated control for providing linear relative motion between the wheel and a workpiece. Constant horsepower operation below the rated or base speed of the first motor is achieved by controlling the relative position of the wheel and the workpiece through the operation of the second motor. The control of the second motor is effected by the development of a correction signal which is a function of the quotient of a signal value representing the desired wheel surface speed divided by a second signal representing the counter electromotive force of the first motor.
REFERENCES:
patent: 3178861 (1965-04-01), Milas
patent: 3264788 (1966-08-01), Coes
patent: 3798846 (1974-03-01), Smith
patent: 3935677 (1976-02-01), Swiatlowski
patent: 4014142 (1977-03-01), Coes
General Electric Company
Renner Arnold E.
Whitehead Harold D.
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