公开(公告)号：GB190415802A

公开(公告)日：1905-02-02

申请号：GB190415802D

申请日：1904-07-15

Applicant: STONE MARTIN JUDSON ,  FENWICK EDWARD TAYLOR

Inventor： STONE MARTIN JUDSON ,  FENWICK EDWARD TAYLOR

Abstract: 15,802. Stone, M. J., and Fenwick, E. T. July 15. Conduits.-For the purpose of securing together conduit sections, their contiguous surfaces are formed with registering undercut grooves 2 for receiving double - headed dowel pins or keys 3, Fig. 3, or cement or other suitable material. The grooves are obstructed at a short distance from the ends of the sections, so as to prevent the dowel pins from being pushed too far back therein in the act of aligning two sections of conduit placed end to end, by suitable projections which may be formed either by pressing material from the body of the conduit or by fixing separate pieces in the grooves. By arranging the grooves at the corners of the sections, four sections of conduit may be held together by a single fourheaded dowel pin.