Power rotary cutting blade with retractable cutting knives

Details Power rotary cutting blade with retractable cutting knives Power rotary cutting blade with retractable cutting knives

1979-02-07

1981-03-31

Hirsch, Paul J.

Harvesters

Motorized harvester

Having motor on ground-supported carrier

56295, A01D 35262, A01D 5518

Patent

active

042585368

ABSTRACT:
A rotary lawn mower comprises a chassis, a prime mover mounted on the chassis, and a rotating member operatively connected with the prime mover for rotation within the chassis and having a peripheral edge. A cutting blade is movably secured to the rotating member for movement between a retracted position in which the cutting blade is positioned inwardly of the peripheral edge and an extended position in which the cutting blade extends outwardly beyond the peripheral edge. A control mechanism is connected to the chassis and movable axially of the axis of rotation of the rotating member for moving the cutting blade between the retracted and extended positions.

REFERENCES:
patent: 2529870 (1950-11-01), Golasky
patent: 2939264 (1960-06-01), Kontis
patent: 2953888 (1960-09-01), Phillips et al.
patent: 3133398 (1964-05-01), Tatum
patent: 3184907 (1965-05-01), Harloff
patent: 3320733 (1967-05-01), Kirk
patent: 3563015 (1971-02-01), Renfroe
patent: 3621642 (1971-11-01), Leake, Jr.
patent: 3690051 (1972-09-01), Wood
patent: 3715874 (1973-02-01), Goserud
patent: 3738092 (1973-06-01), Spear
patent: 3762138 (1973-10-01), Michael
patent: 3888072 (1975-06-01), Templeton
patent: 3949541 (1976-04-01), Henry
patent: 4114354 (1978-09-01), Morris

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