E - Fixed Constructions – 04 – G
Patent
E - Fixed Constructions
04
G
72/72
E04G 9/00 (2006.01) E04G 11/08 (2006.01)
Patent
CA 1239805
ABSTRACT What is proposed is an inwardly articulated form assembly for forming concrete core-wall structures having a rectangular shape in which a primary form structure having fixed seamless corners is presented to the wet concrete; after the concrete has set, a secondary support structure which effects a compound movement when activated by a lever assembly connected thereto causes the primary form to articulate inwardly in a progressively centripetal movement towards the interior of the core-shaft about vertically extending double hinged seams in the wall faces of the primary form near respective corners thereof.
479714
Harsco Corporation
Macrae & Co.
LandOfFree
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