Hydraulically operated gang mower trailer

Harvesters – Gang – Rotating cutting reel

Patent

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Details

56 119, A01D 7530, A01D 6900

Patent

active

045704252

ABSTRACT:
A hydraulically operated gang mower trailer which is connectable to a tractor having a source of pressurized hydraulic fluid for actuating cylinders to raise and lower the mowers. The trailer has a tow bar assembly which permits connection to tractors at varying vertical heights. The trailer has a frame and reel mounting which minimizes the weight carried by the tractor. A stacked set of lever operated hydraulic spool valves which control the flow of pressurized hydraulic fluid to the hydraulic cylinders for lifting and lowering the mowers can be easily moved from tractor to the trailer by disconnecting a minimum number of hydraulic hoses.

REFERENCES:
patent: 2920434 (1960-01-01), Ingram
patent: 3511033 (1970-05-01), Strasel
patent: 3563011 (1971-02-01), Bramley et al.
patent: 3774380 (1973-11-01), Ancellin
patent: 3808778 (1974-05-01), Hoffmeyer et al.
patent: 3832835 (1974-09-01), Hall et al.
patent: 3918240 (1976-11-01), Haffner et al.
patent: 3992858 (1976-11-01), Hubbard et al.
patent: 4106272 (1978-08-01), Peterson et al.

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