Railway diamond crossing

Details Railway diamond crossing Railway diamond crossing

1996-10-16

1998-08-25

Le, Mark T.

Railway switches and signals

Crossings, frogs, and mates

Crossings

E01B 700

Patent

active

057975655

ABSTRACT:
A railway crossing, sometimes referred to as a diamond crossing, has four substantially identical crossing beams which have cutouts made for a wide range of crossing angles. At least two separate base plates are cut to fit the required crossing angle and positioned beneath the crossing beams. Each crossing beam has a flangeway groove extending along at least a portion of the beam length and each beam has integral rail shaped ends for connection to a standard rail section. The crossing beams have top cutouts and bottom cutouts that intersect and are set for a predetermined crossing angle. Boltless locator pins prevent horizontal movement of the top and bottom beams on the plates, and elastic fasteners hold the top and bottom beams to the plates to restrict vertical movement between the top and bottom beams and the plates.

REFERENCES:
patent: 75429 (1868-06-01), Chapin
patent: 178140 (1876-05-01), Gray et al.
patent: 182599 (1876-09-01), Pierce
patent: 198393 (1877-12-01), Johnston
patent: 218632 (1879-08-01), Jefferey
patent: 359116 (1887-03-01), Wharton
patent: 950287 (1910-02-01), Havard
patent: 1703716 (1929-02-01), Botto
patent: 1743924 (1930-01-01), Kopp
patent: 1811129 (1931-06-01), Hesskew et al.
patent: 2132008 (1938-10-01), Asselin
patent: 2539529 (1951-01-01), Asselin

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