Concrete form component

Details Concrete form component Concrete form component

1979-03-07

1980-05-06

Schulz, William E.

Static molds

Core

Of resilient material capable of flexure to aid removal of...

249153, 249179, F16M 1114

Patent

active

042013615

ABSTRACT:
The invention relates to a formwork component for use in concrete construction for the formation of a recess in a wall or ceiling, the component comprising a hollow body defining a central axis, the body having a resilient wall and at least one spreader mechanism adapted to adjust the shape of the hollow body to vary its cross-sectional dimensions. In a first aspect the resilient wall includes at least one section bendable about an axis substantially co-planar with the central axis. The spreader mechanism may include at least one movable spreader component adapted to act on the resilient wall as a hinged lever.

REFERENCES:
patent: 2623261 (1952-12-01), Semararo
patent: 3074140 (1963-01-01), Balcomb et al.

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