Harvesters – Cutting – Rotating-cutting-disk type
Patent
1984-09-17
1986-05-20
Swiatek, Robert P.
Harvesters
Cutting
Rotating-cutting-disk type
56 167, 301 44R, A01D 7528, B60B 1500
Patent
active
045892520
ABSTRACT:
Ground penetrating discs for selective attachment to wheels of a lawn mower to increase safe operation of such lawn mowers on embankments in which the ground engaging discs are selectively secured in engagement over the hub and tread of one or more of the lawn mower wheels and which include a plurality of outwardly extending ground penetrating points which are spaced around the periphery of the discs and which penetrate the earth's surface during operation of the lawn mower and prevent lateral slippage of the lawn mower as a lawn mower traverses a sloped surface.
REFERENCES:
patent: 590734 (1897-09-01), Cross
patent: 870548 (1907-11-01), Dentzeau
patent: 1118390 (1914-11-01), Bajar
patent: 1419350 (1922-06-01), Beers
patent: 2598851 (1952-06-01), Spevak
Albright Penrose Lucas
Swiatek Robert P.
Tarnoff David L.
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