Workpiece engaging apparatus in grinding machines

Details Workpiece engaging apparatus in grinding machines Workpiece engaging apparatus in grinding machines

1984-08-08

1985-12-31

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51 52HB, 51 95GH, 409 15, B24B 4916

Patent

active

045612161

ABSTRACT:
An apparatus for bringing a rotary grinding tool into mesh with a workpiece while minimizing a grinding resistance by the workpiece when the workpiece is to be ground by the rotary grinding tool. An electric power detector is associated with the rotary tool and a sensor is associated with the workpiece. A gate is opened by a peak current detected by the power detector when the workpiece and the grinding tool engage each other and a pulse signal from the sensor, engaging a clutch to connect the workpiece directly to a drive source in response to a signal supplied upon elapse of a prescribed interval of time through a delay circuit.

REFERENCES:
patent: 2374258 (1945-04-01), Davenport
patent: 2642702 (1953-06-01), Staples

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