Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1984-12-06
1986-09-09
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51426, 51410, B24C 304
Patent
active
046101136
ABSTRACT:
The invention relates to a dry cleaning box for removing mill scale, slag, welding wastes, oxidations etc. from metal surfaces. A problem to be resolved is that different materials require different cleaning materials, whereby e.g. the cleaning of light metal casting must be effected with glass sand and the cleaning of steel with steel grit. According to the invention, this problem is resolved by the parallel use of different cleaning materials in a single machine. A box solution according to the invention comprises two ejector guns (1a, 2a), one (1a) of them passing the glass sand from the bottom part (1) of a cyclone to the surface to be cleaned. The other gun (2a), assisted by an additional ejector (2) mounted on the bottom part of a cone, passes the steel grit to the surface of a workpiece to be cleaned for cleaning hard pieces of e.g. steel or cast iron. In both operations, dusts travel along a duct (3) into the cyclone and further along a duct (4) to dust microfilters (5) in the bottom section of the machine from which dusts are shaken into a bin (6) and further to litter.
REFERENCES:
patent: 3631631 (1972-01-01), Greenstein
patent: 3858360 (1975-01-01), Piet
patent: 4067150 (1978-01-01), Merrigan
"Empire World of Impact Finishing"; catalog #780; pp. 24, 31; Empire Abrasive Equipment Corporation, Jun. 21, 1979.
Rose Robert A.
Schmidt Frederick R.
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