Automatic grinding method and apparatus for wood working

Details Automatic grinding method and apparatus for wood working Automatic grinding method and apparatus for wood working

1975-05-22

1976-06-15

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

511345R, 5116587, B24B 700

Patent

active

039628310

ABSTRACT:
An automatic grinding apparatus for wood working comprising means for maintaining substantially constant the contact pressure between a grinding wheel and a material to be ground and the peripheral speed thereof irrespective of abrasion of the grinding wheel. The means for maintaining the contact force constant comprises a grinding wheel swinging means and a grinding wheel compensating means. The former includes a swing arm pivotally mounted on a slider for swinging movement and carrying rotatably a grinding wheel shaft at the free end, and a cylinder means for swinging the swing arm toward and away from the material. The latter includes a means for detecting the angular displacement of the swing arm due to abrasion of the grinding wheel and a slider moving means for advancing the slider toward the material until the swing arm restores to its initial angular position. The means for maintaining the peripheral speed of the grinding wheel constant includes a self-adjusting pulley at the driven side which is so designed that change in the distance between both drive and driven shafts due to the forward movement of the slider causes decrease in the effective diameter of the pulley to increase the speed of the grinding wheel.

REFERENCES:
patent: 1694437 (1928-12-01), Bottger
patent: 1995382 (1935-03-01), Fenton
patent: 3222823 (1965-12-01), Seidel
patent: 3768350 (1973-10-01), Coulter

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