Quick-release attachment for core body in concrete casting formw

Details Quick-release attachment for core body in concrete casting formw Quick-release attachment for core body in concrete casting formw

1981-10-05

1983-05-17

Parrish, John

Static molds

Core

Including means for attaching core to a support

249180, 249183, 249184, B28B 704

Patent

active

043836755

ABSTRACT:
A quick-release bayonet-type attachment between a core body and a plank of a concrete casting formwork, the core body being of oblong arcuate outline and holding in a central groove the eye portion of an anchor member, the bayonet-type attachment including a bayonet lock plate embedded in the core body and a cooperating threaded rod with a bayonet lock head. The lock plate and the cooperating head have non-circular cross sections, the lock plate being accessible through an upper bore portion of matching cross section, the bore portion below the lock plate having flexible walls and a rotationally offset non-circular cross section.

REFERENCES:
patent: 4263249 (1981-04-01), Mayumi
patent: 4296909 (1981-10-01), Haeussler

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