Apparatus for molding layered concrete slabs

Details Apparatus for molding layered concrete slabs Apparatus for molding layered concrete slabs

1974-05-28

1976-05-11

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

264157, 425260, B28B 116, B28B 1302

Patent

active

039559076

ABSTRACT:
Apparatus for depositing different sized aggregate in separate portions of a mold to produce a molded concrete slab or block having three adjacent layers arranged with vertical interfaces.

REFERENCES:
patent: 1594310 (1926-07-01), Long et al.
patent: 1616547 (1927-02-01), Pontoppidan
patent: 1768922 (1930-07-01), Oliver
patent: 2124759 (1938-07-01), Bradbyer
patent: 2552090 (1951-05-01), Eusner
patent: 3416676 (1968-12-01), Nolin
patent: 3425105 (1969-02-01), Gulde
patent: 3426112 (1969-02-01), Taylor-Smith
Anon., Stephens-Adamson Co., Catalog No. 25 (Aurora, Ill.), 1916, pp. 272, 274 & 275.

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