E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
72/92
E04B 5/32 (2006.01) E04B 1/00 (2006.01) E04B 5/48 (2006.01)
Patent
CA 1138217
- 1 - Abstract of the Disclosure In order in a floor drainage trough installation sub- stantially to prevent gaps between the upper edge portions of the side walls of the floor drainage trough and the body of concrete in which the trough is set, such gaps resulting from shrinkage of the concrete as the body of concrete is cured, strips of woven glass fiber material are provided in the upper edge portions of the side walls of the trough during the molding thereof, with closely spaced loops of the glass fiber material of which the strips are formed being coated with the plastics material of which the trough is formed during the molding of the trough and outwardly projecting under the influence of the inherent resiliency thereof by removing the trough from the mold prior to the plastics material becoming fully set. The loops are securely embedded in the body of concrete, so that during the curing of the body of concrete the shrinkage thereof causes slight splaying apart of the upper edge portions of the side walls of the trough, thereby preventing formation of the above- mentioned gaps.
367267
Richardson John K. D.
Ridout & Maybee Llp
LandOfFree
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