E - Fixed Constructions – 21 – D
Patent
E - Fixed Constructions
21
D
61/92
E21D 20/00 (2006.01) E02D 5/80 (2006.01) E02D 7/22 (2006.01) E21B 15/00 (2006.01) E21B 19/08 (2006.01)
Patent
CA 1338064
Auger-type ground anchors for guy wires or the like are installed using a relatively simple apparatus including a frame mounted on a flat bed truck, a slide in the frame carrying an elongated mast for rotation between an inclined storage position and a vertical use position, a carriage movably mounted on the mast, a hydraulic cylinder in the mast for moving the carriage vertically, a motor on the carriage for rotating a chuck, so that an anchor or extension attached to the anchor can simultaneously be rotated and pressed downwardly, and a bracket on the carriage for attachment to the anchor using a chain following installation thereof, whereby lifting force can be applied to the carriage and consequently to the anchor to determine whether the latter is firmly installed.
586397
Vanstone Jack
LandOfFree
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