Method and an apparatus for pushing pipes along a pipe line

F - Mech Eng,Light,Heat,Weapons – 16 – L

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254/148

F16L 55/16 (2006.01) E21B 19/086 (2006.01) F16L 1/028 (2006.01)

Patent

CA 1303602

Abstract An apparatus for pushing forward pipes along a pipe line section is arranged to be brought down into a manhole connected to the pipe line section, and includes a pushing piston (20,26) exerting a pushing force on a pipe (8,12) with support of a holding-up device (2,18). The pushing piston (20) at its leading end carries rods (27) extending essentially to the rear end of the pushing piston and there carry a pressure abutment (28) for bringing the pipe with it during the forward pushing movement of the piston, said rods (27) aiding in supporting the pipe (8). (Figure 1)

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