Apparatus for and a method of laying a pipe line

Details Apparatus for and a method of laying a pipe line Apparatus for and a method of laying a pipe line

1976-05-17

1977-08-30

Shapiro, Jacob

61 85, 61105, E21D 512, F16L 100

Patent

active

040445658

ABSTRACT:
Apparatus for, and a method of, laying a pipe line utilizes an advanceable drive shield composed of parallel displaceable cutter planks supported by a frame to excavate an open trench. Behind the shield is a receptacle which is closed to the trench and receives individual pipe sections for extending the pipe line through an opening in the receptacle. Some of the cutter planks and the receptacle are provided with gripping devices selectively operable to engage the trench walls to anchor the respective components against shifting forces. The receptacle is connected with the frame for movement therewith or for independent movement. A roller bed which can be raised or lowered or tilted in a universal manner is provided in the receptacle to receive the pipe section lowered into the receptacle. The frame also has an adjustable bulkhead at its front end which can be partly opened to allow material at the working face of the trench to enter the shield for subsequent removal.

REFERENCES:
patent: 2757515 (1956-08-01), Wilbur et al.
patent: 3831388 (1974-08-01), Wells
patent: 3916629 (1975-11-01), Thompson
patent: 3967454 (1976-07-01), Barnes

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