Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1978-12-04
1980-12-30
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
B24B 3106
Patent
active
042415454
ABSTRACT:
A workpiece separating and unloading device is disclosed for use with vibratory finishing machines of the type comprising a generally circular or annular finishing bowl; the device comprises a generally horizontally disposed workpiece separating screening assembly and a dam or weir which is movably supported so as to be positionable above the level of the finishing media and workpieces within the bowl during a normal finishing operation and being selectively movable to a downward or lower position extending generally transversely of the path of movement of the workpieces and media within the bowl to cause the media-workpiece mixture to be moved onto the upper surface of the separator screen whereby the workpieces are conveyed to some predetermined destination and the finishing media drops downwardly through the separator screen back into the interior of the finishing bowl; the dam or weir is mounted upon a pivot arm which is secured within the central enclosure or dome of the finishing bowl and is pivotable about a generally horizontally disposed axis and concomitantly rotatable about its longitudinal axis as the weir is moved between the aforementioned upper and lower positions.
REFERENCES:
patent: 3893266 (1975-07-01), Anderson
patent: 4001979 (1977-01-01), Elkins
patent: 4034520 (1977-07-01), Balz
patent: 4042181 (1977-08-01), Hubert
Anderson Gordon H.
Johnson Steven R.
King-Seeley Thermos Co.
Whitehead Harold D.
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