Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1977-03-29
1978-02-21
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51313, 222161, B24B 3100
Patent
active
040744663
ABSTRACT:
A vibratory finishing machine has an elongated tub including a longitudinally extending wall closed at opposite ends. A discharge passage is provided through one of the tub ends and communicates with a discharge spout having an inclined U-shaped terminal edge. A flexible closure is draped over the discharge spout and engages the terminal edge to retain workpieces and media in the tub. An adjustable weight arrangement is provided on the closure for selectively controlling the closing force operative between the closure and the terminal edge. Workpieces and media in the discharge spout bear against the closure and bias the closure in an opening direction. When the opening force imposed by the workpieces and media exceeds the closing force applied by the weight arrangement, the closure opens to discharge workpieces and media from the tub.
REFERENCES:
patent: 1991126 (1935-02-01), Stevenson
patent: 2161230 (1939-06-01), Nelson
patent: 3337997 (1967-08-01), Rampe
patent: 3685213 (1972-08-01), Rampe
patent: 3694968 (1972-10-01), Isaacson
Rampe Research
Whitehead Harold D.
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