Contour belt grinding device

Details Contour belt grinding device Contour belt grinding device

1977-06-22

1979-03-27

Godici, N. P.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51141, 51144, B24B 2106, B24B 2116

Patent

active

041458460

ABSTRACT:
A propeller grinding device and method employs two endless grinding belts which are transported past a grinding station to finish the front and back surfaces. A propeller blank is inserted between the belts and the belts are distorted by platens, each of which includes a plurality of independent platen vanes. Two cams selectively bear upon two camming surfaces of the vanes and move the vanes into desired positions corresponding to the surface contours to be formed on the front and back surfaces of the propeller blades. The cams are rotated as the blade is moved. They also may be moved along the camming surfaces. Additionally, the cams and platens may be moved parallel to the direction of cam rotation with respect to the belts. SU

REFERENCES:
patent: 572812 (1896-12-01), Longden
patent: 736939 (1903-08-01), Cole
patent: 1134508 (1915-04-01), Blevney
patent: 1175332 (1916-03-01), Aubrey
patent: 2426764 (1947-09-01), Czarnecki
patent: 2722787 (1955-11-01), Hallewell
patent: 3552067 (1971-01-01), Przygocki

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