Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1990-03-23
1991-05-21
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51103TF, 414412, 453 63, B24B 712, B24B 518, G07D 900, B65F 302
Patent
active
050163973
ABSTRACT:
An apparatus for removing wrappers from coin rolls comprises a cascade type vibrating feeder bowl for aligning wrapped coin rolls and feeding them serially to the upper end of a coin roll chute that slopes downwardly to a lower end. A pair of contra-rotatable abrasive discs overlie and partially straddle the chute at a predetermined location along its length and a vibrating separator for separating loose coins from their torn wrappers underlies the lower end of the chute. In use, wrapped coin rolls are fed to the chute and are directed thereby to the abrasive discs. The abrasive discs, then, bear against the rolls within the chute to tear away their paper wrappers whereupon the resulting loose coins and torn wrappers fall into the separator where the coins are separated from their torn wrappers for collection.
REFERENCES:
patent: 990909 (1911-05-01), Sattley
patent: 2166171 (1939-07-01), McBean
patent: 2887702 (1955-05-01), Freitag
patent: 3534422 (1968-11-01), Carpenter et al.
patent: 4038746 (1977-08-01), Bromley
patent: 4633995 (1986-01-01), Hamada
patent: 4822235 (1989-04-01), Hipp
Schmidt Frederick R.
Watson Bruce P.
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