Method of making concrete pipe

Details Method of making concrete pipe Method of making concrete pipe

1975-09-22

1977-08-02

Pavelko, Thomas P.

Plastic and nonmetallic article shaping or treating: processes

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

By reciprocating or vibrating mold

264336, B28B 108

Patent

active

040396428

ABSTRACT:
A method for forming large concrete pipes of no-slump concrete and in which the inner and outer concrete molds are horizontally disposed and the annular space therebetween is filled with no-slump concrete through a longitudinal opening in the outer mold. The inner mold is withdrawn axially in generally horizontal direction from the outer mold immediately after the pour has been made. The outer mold together with the wet pipe therein can then be immediately swung to a vertical position so the pipe on its end pallet can set on support legs and the outer mold is then immediately axially stripped upwardly from the finished pipe.

REFERENCES:
patent: 2356852 (1944-08-01), Hutchinson
patent: 2404464 (1946-07-01), Sewell

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