Breakback form tie

Details Breakback form tie Breakback form tie

1976-03-15

1977-10-18

Husar, Francis S.

Static molds

Miscellaneous mold adjuncts

In situ construction engineering or building type

249 41, 249217, E04G 1708

Patent

active

040542580

ABSTRACT:
A breakback form tie for constructing wallforms to contour concrete in which the form tie has at the end portions thereof engaging means for interfacing with brackets, an enlarged cross section positioned inwardly of the engaging means, plug means preferably in the configuration of truncated conical members positioned between the engaging means and the enlarged cross section with the enlarged, base portion of the conical members oriented outwad from the center of the tie, and a frangible section to facilitate breakback positioned inwardly of the enlarged cross section in order that the end portions of the tie may be severed at the frangible section and the severed section of the tie and plug means concurrently removed from a concrete wall formed around the tie.

REFERENCES:
patent: 2370174 (1945-02-01), Kinninger
patent: 2501412 (1950-03-01), Schaefer
patent: 3430913 (1969-03-01), Johnson
patent: 3430914 (1969-03-01), Clasen et al.
patent: 3490730 (1970-01-01), Gates, Jr.
patent: 3741516 (1973-06-01), Rugger
patent: 3801061 (1974-04-01), Holt

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