Surface grinding machine

Details Surface grinding machine Surface grinding machine

1979-06-20

1981-06-09

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

5116577, 5116586, B24B 702

Patent

active

042716373

ABSTRACT:
A surface grinding machine is provided which comprises a head, a grinding wheel supported by the head, and a reciprocable bench for receiving and supporting a work piece. A toothed belt has opposite ends thereof fixed to the bench for effecting reciprocation thereof. The belt is guided by guide rollers mounted on the machine frame which deflect the belt to a drive pinion, which is driven by means of a thyristor-controlled reversible permanent magnetic field servomotor. The servomotor is controlled by a single control switch arranged approximately in the middle of the path of travel of the bench. The control switch operates a contactless trigger element which is connected to the servomotor.

REFERENCES:
patent: 2340096 (1944-01-01), Woodbury et al.
patent: 2370701 (1945-03-01), Woodbury
patent: 2416861 (1947-03-01), Woodbury
patent: 2997815 (1961-08-01), Guinn
patent: 3073072 (1963-01-01), Selby
patent: 3149439 (1964-09-01), Beattie et al.
patent: 3247733 (1966-04-01), Davis
patent: 3803770 (1974-04-01), Abraham, Jr.
patent: 3938016 (1976-02-01), Lange et al.

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