E - Fixed Constructions – 02 – D
Patent
E - Fixed Constructions
02
D
61/5.5
E02D 15/00 (2006.01)
Patent
CA 1234994
UNDERWATER TRENCHING MACHINE ABSTRACT OF THE DISCLOSURE There is described a machine for underwater trenching for pipelines in which a sled comprising two pipe loops arranged in vertical planes at opposite sides of the pipeline and interconnected by transverse pipes is supported on and guided for movement along the pipeline by rubber-faced rollers. High pressure water is supplied to the loops through connection nozzles in the front vertical runs of the loops break up the soil in the face of the trench. Nozzles of water jet pumps suck soil from the trench through the forwardly facing inlets, adjacent the bottom of the sled, of two eductor tubes carried by the loops at opposite sides of the pipeline, and discharge it through discharge outlets, directed respectively outwardly sideways and mainly rearwardly of the sled, The water and soil discharge produces a reaction which propels the sled forwards.
485424
Carstens Daniel K.
Ridout & Maybee Llp
LandOfFree
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