Railways: surface track – Electrical connections – Combined rail joint or support
Patent
1979-08-23
1981-05-05
Reese, Randolph A.
Railways: surface track
Electrical connections
Combined rail joint or support
E01B 2300
Patent
active
042653991
ABSTRACT:
A heavy duty anti-skid device of the type that can be folded into a compact unit for storage comprising a series of three open framed sections with each section being parallel-sided and comprised of angle iron mesh having four edges in welded assembly with the parallel-sided angle iron on each of the sections providing tire gripping areas. Links are pivotally secured at opposite ends to the sections for joining the sections together and for enabling the sections to be folded at the areas of the links so the open framed sections can be positioned in end-to-end relation for co-action with a vehicle wheel to assist in extraction of the wheel from an immobilized position and with the open-framed sections being pivotal at their connections with the links for disposition of the sections in superimposed folded relatively flat relation with respect to one another for ease of storage. U-shaped handles are provided for at least one section with each handle having opposite ends secured with one side of parallel sided section to aid in transporting the device and also serving the resist relative lateral movement and disengagement of the vehicle tire from the anti-skid device.
REFERENCES:
patent: 1218767 (1917-03-01), Heginbottom
patent: 1335546 (1920-03-01), Bardon
patent: 3289939 (1966-12-01), Martinov
patent: 3512613 (1970-05-01), Peterson
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