Stabilizing means for an underground pipe installer device

Details Stabilizing means for an underground pipe installer device Stabilizing means for an underground pipe installer device

1979-08-20

1981-01-27

Taylor, Dennis L.

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

Repair, replacement, or improvement

175220, 405272, E02F 510

Patent

active

042472229

ABSTRACT:
A stabilizer structure for an underground pipe installer device comprised of a pair of adjustable, oppositely, outwardly extending stabilizing abutments, fixed to the rear end portion of an underground pipe installer device. A compound scissors linkage is pivotally mounted relative to an upstanding post fixed to the rear end portion of the installer device, with upper and lower pairs of links thereof being mounted between fixed pivots respectively carried by the post and abutments, and an intermediate pair of links connecting between fixed pivots at outer ends, carried by the respective abutments, and pivots at their respective inner ends carried by a traveling nut, threaded on an elongated screw rod, anchored in a vertical attitude between the three pairs of links, for rotational operation to selectively move the pair of abutments inwardly or outwardly relative to each other.

REFERENCES:
patent: 1639731 (1927-08-01), Humiston
patent: 2274431 (1942-02-01), Renner
patent: 2482367 (1949-09-01), Rarers
patent: 2796738 (1957-06-01), Moore
patent: 2971582 (1961-02-01), Marsh
patent: 3263430 (1966-08-01), Bryan
patent: 3477762 (1969-11-01), Frenyo et al.
patent: 3486572 (1969-12-01), Hamilton et al.
patent: 3653716 (1972-04-01), Hattrup
patent: 3861748 (1975-01-01), Cass

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