Machine element or mechanism – Power take-off – With independent change speed gearing
Patent
1980-05-06
1983-07-05
Dorner, Kenneth
Machine element or mechanism
Power take-off
With independent change speed gearing
74606R, 74342, 172125, F16H 3700, F16H 322, F16H 5702
Patent
active
043911544
ABSTRACT:
An improved digging machine for operation with the power takeoff of a tractor wherein the digging machine includes a gearbox that permits the machine to operate at different speeds independent of the tractor speed in order to accommodate varying ground conditions while maintaining constant sod width. The gearbox includes first and second gear shafts, with the first gear shaft being driven by the power takeoff and transmitting its motion to the second gear shaft through respective first and second gear sets, with the second gear shaft driving at least one hoe-driving shaft. The corresponding gears of the first and second gear sets are selectively engageable to provide plural speed settings, thereby permitting variation of the frequency of the hoe strokes within a wide range. The gearbox is movably orientable on the frame of the digging machine in a vertical plane about the longitudinal axis of the frame in order to accommodate tractors having power takeoffs disposed at different heights.
REFERENCES:
patent: 810634 (1906-01-01), Flather
patent: 1475455 (1923-11-01), Skinner et al.
patent: 2051694 (1936-08-01), Fishleigh
patent: 2821868 (1958-02-01), Gregory
patent: 2957529 (1960-10-01), Kaller
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