Harvesters – Gang – Rotating cutting reel
Patent
1975-12-01
1976-11-23
Eskovitz, J.N.
Harvesters
Gang
Rotating cutting reel
56 109, 56 119, A01D 3524
Patent
active
039928586
ABSTRACT:
A hydraulic system for controlling a gang of lawn mowers including a hydraulic pump and a multi-section valve and hydraulic motors driving the mowers. Hydraulic cylinders are also included in the system, for raising and lowering the mowers, and a check valve is connected with the cylinders for controlling the lowering of the mowers. The main valve is arranged with a plurality of spools which control the aforementioned functions and with the spools being set by means of a single handle so that the operator can perform the aforementioned functions through maneuvering the single handle for each set of hydraulic motors and cylinders. A hydraulic flow restrictor is included in the system for reversing the motors at a speed slower than the forward motor speed, for a slower reverse rotation of the mowers, such as for back-lapping of the mowers.
REFERENCES:
patent: 3563011 (1971-02-01), Bramley et al.
patent: 3918240 (1975-11-01), Haffner et al.
Ecker Frank Allen
Haffner Donald Gene
Hubbard Glenn Richard
Jacoby Harold John
Saiia Anthony Joseph
Eskovitz J.N.
Hansmann Arthur J.
Jacobsen Manufacturing Company
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