Earth working – With drive means for tool or cleaner – Vibrating tool
Patent
1976-10-15
1978-07-25
Crowder, Clifford D.
Earth working
With drive means for tool or cleaner
Vibrating tool
172413, 172477, 172699, 37DIG18, E02F 518
Patent
active
041024036
ABSTRACT:
A crawler tractor is connected to a cable, pipe and line laying machine with a hitch assembly. The hitch assembly has a transverse drawbar secured to forwardly directed side members. The side members being pivotally mounted to the side frames of the tractor are raised and lowered with a pair of double acting hydraulic cylinders. The machine has a frame attached to the drawbar. An annular resilient and flexible member pivotally mounts a body on the frame. An attitude control cylinder connected to the frame and body adjusts the angular position of the body and a plow standard connected to the body. Plow standard is connected to the body with link and connecting members. On forward movement of the tractor, the plow standard is moved through the soil to form a slit trench for the cable, pipe or line. The connecting members are mounted on a crank shaft rotated by a hydraulic motor to provide the standard with an orbital movement. A wheel assembly having legs pivotally mounted to the body is controlled with a pair of double acting hydraulic cylinders to regulate the ground working depth of the standard.
REFERENCES:
patent: 3232358 (1966-02-01), Heiberg
patent: 3336082 (1967-08-01), Bodine, Jr.
patent: 3613803 (1971-10-01), Payne
patent: 3657831 (1972-04-01), Kant
patent: 3685591 (1972-08-01), Ulrich et al.
patent: 3746100 (1973-07-01), Hall et al.
patent: 3757869 (1973-09-01), Gagne
patent: 3935712 (1976-02-01), Erickson et al.
patent: 3952810 (1976-04-01), Ulrich
Crowder Clifford D.
Vibra-King, Inc.
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