Implements or apparatus for applying pushing or pulling force – Pipe or rod jack – Tie rod tensioner
Patent
1983-09-23
1985-11-26
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Pipe or rod jack
Tie rod tensioner
E21B 900
Patent
active
045550905
ABSTRACT:
The main elements of the fence post driving and pulling apparatus include a frame, a track, a traveling slide, means for mounting the frame on a tractor, means for selectively securing a fence post to the traveling slide, and means for driving the traveling slide. The frame mounts to a tractor and the track is formed in the frame. The traveling slide is disposed for substantially vertical displacement within the track as driven by a hydraulic cylinder which is connected between the frame and the traveling slide. The hydraulic cylinder is actuated by the hydraulic power system available on the tractor upon which the device is mounted. A first clamp surface projecting from the traveling slide and an adjacent cam clamp surface presented by a cam which is rotatably connected to the traveling slide provide means for selectively securing the fence post to the traveling slide. A fence post is brought into place upon the face of the traveling slide between the first clamp surface and the cam clamp surface. Rotating the cam closes the gap between the cam clamp surface and the first clamp surface, thereby securely gripping the fence post to the traveling slide. Actuation of the hydraulic cylinder then lowers or raises the fence post with the traveling slide to drive or pull the fence post into and out of engagement with the ground.
REFERENCES:
patent: 1127708 (1915-02-01), Wilber
patent: 1327673 (1920-01-01), Heckman
patent: 2096320 (1937-10-01), Coleman
patent: 2376676 (1945-05-01), Ferguson
patent: 2634092 (1953-04-01), Lindquist
patent: 2681789 (1954-06-01), Nichols
patent: 2685430 (1954-08-01), Henke
patent: 2742258 (1956-04-01), Rosasco
patent: 2901215 (1959-08-01), Jones
patent: 2940267 (1960-06-01), Shaver
patent: 2967044 (1961-01-01), Corcreham et al.
patent: 3002744 (1961-10-01), Phillips et al.
patent: 3059905 (1962-10-01), Tompkins
patent: 3073571 (1963-01-01), Wunsch
patent: 3129924 (1964-04-01), Froh
patent: 3726506 (1973-04-01), Vanderwoal et al.
patent: 3789894 (1974-02-01), Adams
patent: 3834668 (1974-09-01), Casey
patent: 4183511 (1980-01-01), Marek
patent: 4256286 (1981-03-01), Jodgins
patent: 4317560 (1982-03-01), Troyer
patent: 4368873 (1983-01-01), Perry
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