Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Patent
1997-03-27
1999-11-02
Bagnell, David
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
By means advancing along terrain and guiding pipe or cable...
405174, 37367, F16L 102
Patent
active
059758040
ABSTRACT:
A tile plow includes a horizontal beam and a shoe extending downwardly from the beam. The beam and shoe are supported on a rear wheel assembly, and a front linkage assembly. The beam and shoe are movable between a raised transport position and a lowered plowing position. The position of the rear wheel assembly and front linkage assembly is controlled by a slave hydraulic system for simultaneously raising and lowering the tile plow. A secondary hydraulic outlet adjusts the rear hydraulic cylinders relative to the front hydraulic cylinders. When the tile plow is laying a tile line, the rear wheels are positioned substantially behind the shoe.
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Johnson Drainage Plows Advertisement, Farm Equipment Guide. Hurricane Side-Arm Advertisement. (undated).
Bagnell David
Bockman Enterprises, Inc.
Lagman Frederick L.
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