Apparatus for manufacture of precast concrete building units

Details Apparatus for manufacture of precast concrete building units Apparatus for manufacture of precast concrete building units

1991-06-07

1993-04-27

Woo, Jay H.

Static molds

In situ construction engineering type or building type-mold...

Forming building structure

249 99, 249101, 249144, 249152, 249155, B28B 722

Patent

active

052059430

ABSTRACT:
A U-shaped, half-room precast concrete building unit is molded in an open box-like framework having four L-shaped corner assemblies, facing pairs of horizontal legs of which are respectively joined by laterally-extending telescoping spacers, and facing pairs of vertical legs of which are respectively each joined by two laterally-spaced longitudinally-extending plates. Inserts having alternating voids and blocks are placed longitudinally between the vertical leg pairs to form complementary block and void patterns on the molded unit juncture edges. Retainers having projections are placed over the top edges of the plates to form complementary tongue and groove portions. Relative dimensions of the molded unit are selectable through adjustment of the relative positionings of the corner assemblies.

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