Apparatus for laying a pipe line

Details Apparatus for laying a pipe line Apparatus for laying a pipe line

1977-04-27

1978-06-13

Shapiro, Jacob

61 85, 61105, E21D 512

Patent

active

040941523

ABSTRACT:
Pipe-laying apparatus employs an advanceable shield with a set of elongate cutter planks supported for longitudinal displacement by a frame. Rams interconnect the planks and the frame and enable the shield to advance to form an open trench. Behind the shield is an open stabilizing frame connected with further adjusting rams to the frame of the drive shield. The frame serves to receive a pipe section which is to be aligned and connected to a previously-installed pipe section to extend the pipe line. A set of long follow-up planks are pivotably connected to the cutter planks and lie between the open frame and the trench walls. The follow-up planks extend over a distance equal to two or three times the length of the open frame and of the individual pipe sections to form a protection zone behind the open frame

REFERENCES:
patent: 3543522 (1970-12-01), Torti
patent: 3994139 (1976-11-01), Folk

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