Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Patent
1980-01-07
1981-09-15
Purser, Ernest R.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
By means advancing along terrain and guiding pipe or cable...
405180, F16L 102
Patent
active
042894247
ABSTRACT:
Apparatus for laying conduit, cable and the like, most advantageously in a trench, features a hopper embodied in a frame adapted to be placed within a trench and loaded with gravel or other embedment material. The construction and placement of the hopper provides for discharge therefrom of the embedment material as the frame is moved the length of the trench, the discharge being to the bottom and at one end of the frame and to a level metered by a readily adjustable control blade. A feed tube extended through the frame and the hopper, to position within the body of the embedment material introduced therein, is provided with a mount enabling its substantially universal adjustment. This feed tube serves to guide and discharge the conduit, cable or the like to be laid simultaneously with the discharge of the embedment material and within and at a predetermined level with respect thereto. The frame per se embodies means for a finish shaping and conditioning of the trench as it is moved while the feed tube serves to provide a firming and compacting action on the embedment material over which it is drawn and to form a nest for the article being laid which facilitates a precise positioning of such article in a substantially straight line path.
REFERENCES:
patent: 259248 (1882-06-01), Wasson
patent: 332126 (1885-12-01), White
patent: 3849998 (1974-11-01), Thacker
patent: 3874182 (1975-04-01), Potter et al.
patent: 4028902 (1977-06-01), Coursen et al.
Rue Marvin E.
Shefbuch Robert J.
Bloom Jerome P.
Purser Ernest R.
Rue Marvin E.
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