E - Fixed Constructions – 04 – G
Patent
E - Fixed Constructions
04
G
72/70
E04G 11/36 (2006.01)
Patent
CA 2039085
ADJUSTABLE CONCRETE FORMWORK SYSTEM ABSTRACT OF THE DISCLOSURE This invention pertains to a novel adjustable formwork system which can be used in the manufacture of a wide range of structurally efficient cross-sectional shaped concrete beams, columns and structures. A cast-in-place concrete beam form comprising: (a) at least two spatially oriented upper sleeves, with an upper web located on one side of the two sleeves, and extending therebetween; (b) at least two spatially oriented lower sleeves, with a lower web located on one side of the two sleeves, and extending therebetween; and (c) at least two members, each member connecting telescopically the respective upper sleeve with the respective lower sleeve, said telescoping members enabling the two upper sleeves to be raised or lowered relative to the two lower sleeves.
Channel Form Systems Inc.
Oyen Wiggs Green & Mutala
Sandwith Stanley R.
LandOfFree
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