Railways: surface track – Electrical connections – Combined rail joint or support
Patent
1979-02-26
1981-07-14
Reese, Randolph A.
Railways: surface track
Electrical connections
Combined rail joint or support
E01B 2300
Patent
active
042782031
ABSTRACT:
An antiskid traction device of the type which is engaged under a vehicle wheel to provide traction thereto when stuck in a rut. This traction device is characterized by being constructed to prevent sinking thereof into the snow or mud under the wheel, and to prevent throwing thereof by the wheel. This traction device comprises sections articulated one to another end to end, including a resilient tongue section adapted to act as a runner or ski under the vehicle wheel, by an intermediate section or portion engaging in the rut to provide traction therein, and by a traction section formed of expanded metal made wider than the tire to bear on the opposite sides of the rut thus minimizing sinking of the traction device. The expanded metal has nodal points selectively bent upward and downward to produce traction projections and wheel guide projections at the top and cleats at the bottom.
REFERENCES:
patent: 1075377 (1913-10-01), Phillips
patent: 1863316 (1932-06-01), Webster, Jr.
patent: 2443319 (1948-06-01), Mack
patent: 3786989 (1974-01-01), Haynes
patent: 3910491 (1975-10-01), Ducharme
patent: 4210280 (1980-07-01), Reisner
patent: 4230269 (1980-10-01), Uchanski
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