Boring or penetrating the earth – Boring without earth removal – Drive point detached from shaft to form cased bore or with...
Patent
1974-12-02
1976-05-11
Taylor, Dennis L.
Boring or penetrating the earth
Boring without earth removal
Drive point detached from shaft to form cased bore or with...
61 721, 173 24, E21B 1102
Patent
active
039556328
ABSTRACT:
Pipe laying apparatus wherein pipe drawing means are fixed to one end of a pipe and serve to pull a pipe through the ground as the pipe is rotated. The pipe is supported from a track, and a carriage movable along the track includes means for rotating the pipe. The pipe drawing means includes a gimlet to provide a hole substantially the same size as the pipe, and a propeller carried by the gimlet provides forward motion of the gimlet.
REFERENCES:
patent: 740521 (1903-10-01), Brown
patent: 1932068 (1933-10-01), Englebright et al.
patent: 1993366 (1935-03-01), Englebright
patent: 2165666 (1939-07-01), Tilly
patent: 2639931 (1953-05-01), Kandle
patent: 2823898 (1958-02-01), Bankston
McGhee Harce
Sapp Richard S.
Middleton James B.
Taylor Dennis L.
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