Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1981-12-01
1984-01-17
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264308, 264310, 264DIG57, B28B 116
Patent
active
044263457
ABSTRACT:
A process for forming a baluster constructed from aggregates and a binder includes depositing on a core, preferably of metal, which is subjected to a rotary movement about its axis at a speed of not more than two revolutions per second, a first layer of concrete to obtain a cylindrical mass which is joined to the core and which is compacted by the action of a knife which strikes the surface of rotation, towards which there is driven or pushed the concrete which, once dimensionally stabilized in a presetting operation, is subjected to a second operation in which there is deposited a second layer of concrete having a finer granulometry. The knife has a shape which is the negative of that which is to be given to the piece with the mass being compacted by the action of the knife. Plural successive layers with a finer granulometry and a richer proportion may be supplied until the contemplated shape and dimensions are reached. The body is subjected, after presetting, to complementary ornamental operations by conventional means.
REFERENCES:
patent: 1244608 (1917-10-01), Hicks
patent: 2696353 (1954-12-01), Vessels
Housel James C.
Woo Jay H.
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