Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1982-02-26
1984-06-05
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
74 87, B24B 3106
Patent
active
044520166
ABSTRACT:
A vibrating finishing apparatus including an annular tub mounted upon a spring support is disclosed. A drive shaft extends upwardly through the center opening of the tub and is interconnected to the inner wall of the tub. A reversible motor selectively rotates the shaft in either of two directions. The shaft carries a lower eccentric weight and an upper eccentric weight assembly which are offset to create a vibratory movement. The upper weight assembly automatically shifts the angular offset between its center of gravity and that of the lower eccentric weight when the direction of shaft rotation is changed. The upper weight assembly includes a cylindrical housing with two internal baffles at an angle to one another defining a weight chamber partially filled with steel ball weights.
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patent: 3844071 (1974-10-01), Barlett
Rosemont Industries, Inc.
Whitehead Harold D.
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