Apparatus for fabrication of concrete brick

Details Apparatus for fabrication of concrete brick Apparatus for fabrication of concrete brick

1988-06-03

1989-09-26

Hoag, Willard

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For press shaping surface

425413, 425421, 425423, 425431, 425456, B28B 2112, B28B 2114

Patent

active

048696609

ABSTRACT:
Apparatus for making a concrete brick, the brick having at least one visible surface having a texture similar to that of natural stone. The brick may be made by filling a mold with concrete, vibrating the mold, and using a descending plunger to compress the concrete in the filled mold. At least one interior surface of the mold has a textured surface used to form the texture in the brick. Following compression of the concrete, a movable sidewall of the mold is moved laterally away from the brick a distance sufficient for the textured surface of the mold wall to clear the textured surface of the brick when the mold is raised. With the plunger remaining in place, the mold is raised, following which the plunger is raised.

REFERENCES:
patent: 799754 (1905-09-01), Petrie
patent: 1564490 (1925-12-01), Parkhurst
patent: 1776999 (1930-09-01), Jensen
patent: 2038205 (1936-04-01), Case
patent: 3013321 (1961-12-01), McElroy
patent: 3277551 (1966-10-01), Sekiguchi
patent: 4063866 (1977-12-01), Lurbiecki

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