Machine for extruding hollow cored concrete sections

Details Machine for extruding hollow cored concrete sections Machine for extruding hollow cored concrete sections

1981-01-02

1982-05-18

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Building forms or construction engineering type mold with...

Including mold charging means

425224, 425376R, 425432, 425449, 425580, B28B 2108, B28B 2114, B28B 2142, B28B 2152

Patent

active

043302424

ABSTRACT:
A machine for extruding hollow cored concrete sections, wherein concrete forced into a travelling mold by augers and trailing mandrels form a cored concrete slab, wherein the mold is provided with a vibrating top plate assembly having forward and trailing sections, the forward section having a greater amplitude of vibration than the trailing section so as to minimize amplitude to vibration transferred to the concrete in the afterpart of the mold.

REFERENCES:
patent: 3143781 (1964-08-01), Kalns
patent: 3877860 (1975-04-01), Putti
patent: 3989230 (1976-11-01), Martens
patent: 3994639 (1976-11-01), Hewitt

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