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George Frederick Restall
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Individual
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Individual
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Publication of GB189902757ApublicationCriticalpatent/GB189902757A/en
2757. Restall, G. F. Feb. 7. Jointing-apparatus; stopping- pipes.-For drain and other pipes, rubber discs a and b, sliding on a spindle c and attached to plungers n and o working in fixed cylinders r and s, form between them a chamber h in which cement is placed. As the apparatus is drawn through the pipe, fluid pressure is supplied through cocks l and m and ports t, u, v and w to the cylinders r and s, to bring the discs a and b nearer together, and thus force the cement into the joints &c.
GB189902757D1899-02-071899-02-07Improved Apparatus for Jointing and Repairing Drain and other Pipes.
ExpiredGB189902757A
(en)
Adjustable flange gasket for piping flange, has recess or chamfer at outer circulating area whereby separate tapered ring or O-ring is inserted into recess