Railways: surface track – Electrical connections – Combined rail joint or support
Patent
1980-07-11
1981-11-17
Watson, Robert C.
Railways: surface track
Electrical connections
Combined rail joint or support
254 1, E01B 2300
Patent
active
043007228
ABSTRACT:
A traction mat to aid vehicle wheels for driving out of ice, snow, mud or sand and the like that is an elongated unitary stamped metal structure which is generally rectangular and having a forward inwardly tapered end portion with the mat including a plurality of upwardly extending flanges disposed at 90.degree. with respect to the planer surface and a plurality of downwardly projecting V-shaped gripping lugs. The mat outer side edges are formed with trough shaped ribs for stiffening and the upwardly extending flanges and downwardly shaped gripping lugs are provided with structurally formed ribbing to increase the rigidity for placement and use in a variety of terrains.
REFERENCES:
patent: 1574729 (1926-02-01), Foster
patent: 3025002 (1962-03-01), Kunz
patent: 3357639 (1967-12-01), Peterson
patent: 3878988 (1975-04-01), Blais
patent: 3910491 (1975-10-01), Ducharme
patent: 3917227 (1975-11-01), West
patent: 4034961 (1977-07-01), Breen
Vision Metal Fabricators Corporation
Watson Robert C.
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