Tool power system usable as substitute for vehicle propulsion

Details Tool power system usable as substitute for vehicle propulsion Tool power system usable as substitute for vehicle propulsion

1974-08-23

1976-07-20

Purser, Ernest R.

Tool driving or impacting

With vehicle support for drive

Movement of vehicle causes tool advance

37DIG17, 172114, 173 27, E02F 502

Patent

active

039701549

ABSTRACT:
The ditcher is provided with two engines. The first engine powers the hydraulic system which rotates the digging wheel. The second engine powers the hydraulic system which actuates the wheel lifting cylinders, the conveyor system and the track driving means. The two hydraulic systems are selectively interconnected so that, in the event that the second engine fails, the first engine can be used to actuate the wheel lifting cylinders and track driving means. As a result, the ditcher's wheel can be lifted to the travelling position and the tracks driven to move the ditcher off the pipe line right-of-way and enable it to return to a base camp for repairs.

REFERENCES:
patent: 375076 (1973-08-01), Eaton
patent: 2829724 (1958-04-01), Burns et al.
patent: 3690395 (1972-09-01), Spiller et al.
patent: 3796462 (1974-03-01), Staab

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