Process for producing slabs from poured concrete

Details Process for producing slabs from poured concrete Process for producing slabs from poured concrete

1975-08-28

1978-01-10

Pavelko, Thomas P.

Plastic and nonmetallic article shaping or treating: processes

Treatment of material by vibrating, jarring, or agitating...

249120, 249129, 249171, 264297, B28B 108

Patent

active

040679411

ABSTRACT:
A series of mold cavities are made up of side plates which are pivoted on vertical offset hinges and each is movable one toward the other to define the mold cavities into which concrete is poured to form the slab. Certain of the vertical side walls have integrally related lateral wall elements which separate the side walls and complete the enclosure for the mold cavity. After the slabs have hardened, the side walls are forced apart by prying them at their upper corners causing each in turn to pivot on its respective axis and thereby opening the individual mold cavity and allowing withdrawal of the hardened slab therein.

REFERENCES:
patent: 1314018 (1919-08-01), Pipe
patent: 1642247 (1927-09-01), Krause
patent: 1760282 (1930-05-01), Pedersen
patent: 2560781 (1951-07-01), Schoaf
patent: 2983983 (1961-05-01), Mayer

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