Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1981-05-11
1984-02-21
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51 7, B24B 3106
Patent
active
044321686
ABSTRACT:
A vibratory finishing machine includes a supporting frame, a processing tub, and a tub vibrating mechanism interposed between the frame and the tub. Workpieces and finishing media are introduced into the tub for processing, are vibrated to effect a finishing action, and are discharged from the tub through a discharge opening. The discharge opening is selectively opened and closed by a door structure which is not mounted on the tub for vibratory movement therewith as is conventional, but which is, instead, supported independently of the tub so that the tub vibrates relative to the door during finishing operations. The door is biased toward its closed position and is provided with a power-operated mechanism for moving it toward its open position. In the event of power failure, the biased door will move toward its closed position to prevent workpieces and finishing media from emptying from the tub.
REFERENCES:
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patent: 3906680 (1975-09-01), Rampe
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Burge David A.
Rampe Research
Whitehead Harold D.
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