| 摘要 |
To enable the joining together of two adjacent pipe lengths with adjacent ends curving with substantially the same sense, e.g. one in a trench 5 and the other from a reel 4, the end of one of the pipe lengths is rotated about its axis until it curves in substantially the opposite sense to the curve of the adjacent end of the other pipe length. Initially, the pipe end from the reel is laid on the ground and rotates 90‹ to lie in a horizontal curve by its own weight. A two part pipe clamp sleeve 10 is attached near its end and is raised by a strop 12 affixed to the sleeve 10 opposite to the curve inside. This rotates the pipe a further 90‹ to curve downwardly for easier joining to the other pipe. The clamp parts are hinged and can have interior rings for different pipe sizes. |
