Brushing – scrubbing – and general cleaning – Machines – Scraping
Patent
1975-01-29
1978-05-16
Hornsby, Harvey C.
Brushing, scrubbing, and general cleaning
Machines
Scraping
164 5, 34 20, C10B 4304
Patent
active
040890813
ABSTRACT:
Apparatus for purifying foundry sand which involves the passage of sand through layers of steel wool supported on perforated discs mounted on a vertical shaft in a standpipe. Perforations in the sides of the standpipe permit air to be blown through the sand as it drops down through the steel wool. The vertical shaft supporting the discs and steel wool is vibrated to cause the sand to move through and past the packs of steel wool.
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Shell Mold Job Shop by Robert H. Herrman, "Foundry" Magazine, pp. 78-83, Feb. 1956.
Hornsby Harvey C.
Pous Robert
Striker Michael J.
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