E - Fixed Constructions – 04 – C
Patent
E - Fixed Constructions
04
C
72/76
E04C 5/16 (2006.01) E04G 17/07 (2006.01)
Patent
CA 1099530
SNAP-TIE ABSTRACT OF THE DISCLOSURE A tie bar for use in positioning forms into which a suitable material such as concrete may be poured comprises a metal bar having a central portion and two end portions. The end portions are intended to be broken away from the central portion at a stress concentrating notch after the concrete has set. A pair of moulded members are moulded directly to the central portion of the bar each of which moulded members comprises at least two flanges extending outwardly from the bar and spaced apart to accommodate a reinforcing rod. The tie is also fitted with two conical spacers which extend axially outwardly from the moulded members and which are conical having the largest diameter facing axially outward to support the form and prevent inward movement of the forms. In one preferred embodiment of the invention the conical spacers are separate from the moulded members. In a second preferred embodiment the conical spacers are integral with the moulded members. The moulded members serve to locate the forms during the pouring stage and to maintain spacing of reinforcing rods within the concrete and after pouring serve to virtually eliminate water passage through the concrete wall along the central portion of the tie. In an embodiment for use with relatively thin walls the moulded members have a single outwardly extending flange and the reinforcing rod may be located by positioning the reinforcing rod against the single flange and the body portion of moulded member.
326983
Acrow-Richmond Limited
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
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