Device to secure an underground pipe installer in a trench

Details Device to secure an underground pipe installer in a trench Device to secure an underground pipe installer in a trench

1980-05-12

1981-06-23

Taylor, Dennis L.

Hydraulic and earth engineering

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

Repair, replacement, or improvement

175 62, 254 29R, 405154, F16L 102

Patent

active

042747589

ABSTRACT:
A pair of elongated abutment members are provided in a parallel arrangement outwardly of respective sides of an underground pipe installer device, and a link arrangement connects the abutment members to the respective sides in a manner whereby the spacing between the members may be forcibly expanded by utilizing the drive forces of the pipe installer by interconnecting an underground hole forming rod, conventionally engaged in the installer to the link arrangement during a forward drive operation thereof. A pair of screw shafts connect between the installer device and the linkage in a manner whereby lock nuts, when engaged on the screw shafts, serve to lock the abutment members in their expanded positions. Removal of the lock nuts relieves the expansion forces and permits the abutment members to be moved oppositely inwardly toward the installer device.

REFERENCES:
patent: 2167500 (1939-07-01), Dornfeld et al.
patent: 2196260 (1940-04-01), Gatto
patent: 2482367 (1949-09-01), Ravers
patent: 2879101 (1959-03-01), Daroci
patent: 3263430 (1966-08-01), Bryan
patent: 3477762 (1969-11-01), Frenyo et al.
patent: 4106634 (1978-08-01), Becker

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