Gang form

Details Gang form Gang form

1985-11-14

1987-09-22

Hoag, Willard E.

Static molds

Uniting preform with molding material

Including means other than mold surface to support preform

249 93, 249 99, 249112, 249120, 249123, 249126, 249145, 249155, 249176, 249 50, 2642979, B28B 722

Patent

active

046950311

ABSTRACT:
A gang form in which a single or a plurality of precast concrete beams will be molded at one time, the gang form comprising a first and two second vertical walls, the first wall being a straight wall, the two second walls spaced apart one from another extend transversely away from the first wall while having an end abutting the first wall, a tier or tiers of precast concrete beams being molded by placing fluid concrete into a mold compartment comprising the top surface of either a starter slab or a previously precast beam, a longitudinal segmental strip of a vertical surface of the first wall or the vertical surface of a previously constructed tier and an individual mold side member, which side member is restrained by restraint means placed exterior of said mold compartment, the restraint means allowing the individual mold side member to be adjusted vertically while also being adjusted horizontally at various distances apart from a face of the first wall, the precast concrete beams while molded in their mold compartment are in an unnatural first arrangement with the natural sides of the beams being superimposed one upon another, in the first arrangement the natural top and bottom of the beams are molded against one or the other of a vertical face of the first wall or against the individual mold side member, the vertical faces of the first wall and the interior face of the individual mold side member being so constructed to imprint either a plain smooth surface or a special corrugated surface to the natural top and bottom surfaces of the precast concrete beams when being molded in their unnatural first arrangement.

REFERENCES:
patent: 1460197 (1923-06-01), George
patent: 1580518 (1926-04-01), Martine
patent: 1655725 (1928-01-01), Crozier
patent: 1744702 (1930-01-01), Leeder
patent: 2458155 (1949-01-01), Fraser
patent: 2499532 (1950-03-01), Shearer
patent: 2516318 (1950-07-01), Hawes
patent: 2611944 (1952-09-01), Bailey
patent: 2723437 (1955-11-01), Ghormley et al.
patent: 3618181 (1971-11-01), Veale
patent: 4141532 (1979-02-01), Wall
patent: 4290991 (1981-09-01), Thim

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