E - Fixed Constructions – 01 – C
Patent
E - Fixed Constructions
01
C
61/29, 61/4.5
E01C 19/00 (2006.01) B29C 63/00 (2006.01) B29C 63/04 (2006.01) E02B 3/12 (2006.01) E02B 5/02 (2006.01) E02B 13/00 (2006.01)
Patent
CA 1318138
METHOD AND APPARATUS FOR FORMING A CONTINUOUS PLASTIC SHEET Abstract of the Disclosure A method of lining an irrigation canal with a sheet of fiber- reinforced plastic includes the steps of depositing a layer of resin and fiber on a web of flexible carrier material, partially curing the resin prior to laying thesheet in the canal, and then laying the sheet in the canal while the resin is flexible enough to conform to the shape of the canal. The final curing of the resin takes place after the sheet is placed in the canal. A predetermined-shape wrinkle is induced in the carrier web before it is laid into the canal to assist in conforming the sheet to the canal shape without causing randomly placed wrinkle so that the sheet is smooth in the canal. An apparatus is disclosed thatforms the sheet and is propelled so that it travels along the length of the canal, fabricating a continuous sheet as it travels. In one embodiment the carrier is aflexible but nonelastic material like kraft paper, coated on one side with wax or other film to prevent saturation by the resin.
550871
Ives Frank E.
Smart & Biggar
LandOfFree
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