Apparatus for drilling and inserting a horizontal pipe

Details Apparatus for drilling and inserting a horizontal pipe Apparatus for drilling and inserting a horizontal pipe

1984-08-13

1985-09-03

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Rotary cutter head with advance direction coincident or...

166 62, 166122, E21B 300

Patent

active

045388580

ABSTRACT:
A horizontal earth boring machine is disclosed of the type in which a carriage supports an engine rotatably connected to an auger, and a push ring. The carriage is movable along a set of tracks between a forward position and a rearward position. Hydraulic means power the carriage between its forward and rearward positions. In one version, the auger and push ring are connected by a universal joint to the engine so that a pair of hydraulic cylinders can raise the push ring and planetary gear reduction unit to an adjusted position above the track in order to accommodate any vertical misalignment of the push ring as it is pushing pipe through a horizontal hole drilled by the auger.
In another version, the carriage is pivotal right to left to accommodate misalignment of the push ring.

REFERENCES:
patent: 3610345 (1971-10-01), Richmond
patent: 3682261 (1972-08-01), Bird
patent: 3886999 (1975-06-01), Appleman
patent: 3912024 (1975-10-01), Richmond et al.

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