发明名称 CONCRETE BEAM FORMS
摘要 Apparatus for forming concrete beams integrally with concrete floors comprising an elongated beam form with bottom and side walls and with flanges extending outwardly from the top of the side walls. A pair of rods projected upwardly through holes in opposite flanges, are tied by a steel strap to prevent spreading of the side walls when concrete is poured into the form. After the concrete sets, the rods are pulled out, the form stripped, and the strap left in place. The elongated beam forms have end portions, where the lower walls are stepped down and the side walls stepped outwardly, and a pair of aligned beam forms is joined by an adjustment form section which lies within the stepped end portions of the beam forms.
申请公布号 US3792830(A) 申请公布日期 1974.02.19
申请号 USD3792830 申请日期 1972.07.21
申请人 LA MESA IND INC,US 发明人 DASHEW S,US;WILLS A,US
分类号 E04G13/02;E04G13/04;(IPC1-7):E04G11/42 主分类号 E04G13/02
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