Metal working – Method of mechanical manufacture – With separating – localizing – or eliminating of as-cast...
Patent
1979-07-23
1981-01-27
Goolkasian, John T.
Metal working
Method of mechanical manufacture
With separating, localizing, or eliminating of as-cast...
152208, 301 44T, 301 46, 301 49, 301 51, B60C 2700
Patent
active
042466911
ABSTRACT:
The traction device of the invention is for use with a vehicle wheel supported by lugs and having a tire. The traction device has a base with openings for the reception of at least two but less than all, the lugs for supporting the base. A plurality of spaced radial arms are supported by the base with each having an end adapted to extend beyond the outer periphery of the tire and protrude into an icy surface. Each of said ends is adapted to lie in a vertical plane adjacent to the outer side wall of the tire. The end of each arm may advantageously be free to move in and out while being spring biased outwardly, be threadably attached to the arm for movement inwardly and outwardly, or be pivotally connected to the arm for movement into and out of an operative position. The said ends may extend different distances beyond the outer periphery of the tire. Preferably, the base is secured on less than all of the lugs and has a bearing recess accommodating a nut on a lug to which the base is not secured.
REFERENCES:
patent: 2443406 (1948-06-01), Thompson
patent: 2598851 (1952-06-01), Spevak
patent: 2709115 (1955-05-01), Nisser
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patent: 3911985 (1975-10-01), Fletcher
patent: 3935891 (1976-02-01), McCloud et al.
patent: 4089359 (1978-05-01), Jones
Dawson Robert A.
Goolkasian John T.
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