Lift system for front-mounted implements for lawn and garden tra

Excavating – Snow or ice removing or grooming by portable device – With specific means to facilitate connection to – or...

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172817, E01H 504

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active

048255700

ABSTRACT:
A front-mounted snowblower is pivotally attached to a midmount location at the underside of a tractor frame by a pair of lift arms that extend between the tractor front wheel. A rockshaft is pivotally attached to the snowblower at a location forwardly of the tractor and is linked to brackets carried by the tractor axle. The rockshaft includes a transversely offset arm to which the forward end of a lift link is coupled, the rear end of the lift link being coupled to a lift handle located beside the tractor operator station and secured to the outer end of a support bracket fixed to rear end portions of the lift arms. The mounting of the handle to the bracket releases the handle from the bracket upon the handle being swung forwardly beyond a normal working range thereby permitting the implement lift arms to be moved between the tractor front wheels during attachment and detachment operations.

REFERENCES:
patent: 1776878 (1930-09-01), Alwin
patent: 1788879 (1931-01-01), Lile et al.
patent: 1957771 (1934-05-01), Gettelman
patent: 2006761 (1935-07-01), Frink
patent: 2131872 (1938-10-01), Galpin
patent: 2171830 (1939-09-01), Hayes
patent: 2426410 (1947-08-01), Owen
patent: 3440739 (1969-04-01), Manke
patent: 3588147 (1971-06-01), Ewters
patent: 3721025 (1973-03-01), Orr
patent: 3815687 (1974-06-01), Federspiel
John Deere 110 Series Lawn and Garden Tractor Operator's Manual (Om-M40832), pp. 8, 11 and 49, dated 8/1964.
John Deere 32 Snow Thrower for 60 Lawn Tractor Operator's Manual (OM-M41687), pp. 8, 9 and 13, dated 2/1966.
John Deere 37A Snow Thrower Operator's Manual (OM-M81431), Issue F6, pp. 4, 8, 9, 13 and 14, dated 6/1966.

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