Railroad highway crossing

Details Railroad highway crossing Railroad highway crossing

1993-06-15

1995-12-12

Le, Mark T.

Railway switches and signals

Grade-crossing track protection

246113, 238 8, B61L 2900

Patent

active

054742668

ABSTRACT:
Sections of a highway crossing over the rail road are raised completely clear of the rail road to form a barrier preventing automobile traffic from entering the rail road when a train is at or nearing the crossing. When the train has passed, the barrier sections are lowered, reforming the grade crossing so that automobile traffic may cross the rail road at near grade. The ends of each barrier transverse to the centerline of the roadway are shaped and positioned so that a continuous surface is formed when the barrier sections are in the lowered position, partly resting on the rail road or nearby supports, allowing automobiles to continue over the rail road by means of driving on the upper surfaces of the lowered barriers, with only small gaps at the joints where the sections adjoin each other or meet the approach roadway.

REFERENCES:
patent: 1412327 (1922-04-01), Abt
patent: 1680821 (1928-08-01), Strauss
patent: 2999137 (1961-09-01), Prokopik
patent: 4004765 (1977-01-01), Barlow
patent: 4169296 (1979-10-01), Wipkink et al.

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