F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 21/06 (2006.01)
Patent
CA 2489093
A pipe coupling (11) comprises a tubular casing (12) and a sealing gasket (13), which fit over the ends of the pipes to be coupled. The casing (12) is formed from a strip of rolled steel into a cylindrical shape, with a longitudinal gap (14). The free ends of the strip, which forms the casing, are bent outwardly to form radially projecting flange (15) along opposite edges of the longitudinal gap (14). The outer ends of the flanges (15) are bent back at right angles to form stiffening flanges (16) along the longitudinal outer edges of the flanges (15). A bridging member (18) fits inside the casing so as to span the longitudinal gap. Tensioning screw bolts (25) pass through reinforcing plate~s (20) and the flange (15). A hexagonal nut (34) is threaded onto the end of each screw bolt. The nuts fit into the channel but are prevented from turning. The heads (35) of the bolts have a hexagonal recess to take an Allen key so that they can be tightened to clamp the coupling around the pipe ends.
L'invention porte sur un raccord pour tubes (11) comprenant une enveloppe tubulaire (12) et un joint d'étanchéité (13), qui s'adapte aux extrémités des tubes à réunir. L'enveloppe (12) est faite d'une bande de tôle d'acier cylindrique présentant une fente longitudinale (14). Les extrémités libres de la bande formant l'enveloppe sont courbées vers l'extérieur de manière à former des flasques radiaux (16) le long des bords opposés de la fente (14). Les extrémités extérieures des flasques (15) sont recourbées à angle droit pour former des raidisseurs le long de leur bord longitudinal extérieur. Un élément passerelle (18) intérieur à l'enveloppe relie les bords de la fente (14) et des boulons tenseurs (25) traversent des plaques (20) de renfort et les flasques (15). Des écrous hexagonaux (34) se vissant sur l'extrémité de chacun des boulons, et s'adaptant au canal sont empêchés de tourner. Les têtes (35) des boulons présentent des cavités pour clef hexagonale permettant de les visser pour serrer le raccord autour des tubes.
Taylor Neil John Thornton
Webb Ian Richard
Ridout & Maybee Llp
Taylor Kerr (couplings) Limited
LandOfFree
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