Railways: surface track – Roadbed – Street crossing
Patent
1981-01-27
1983-11-15
Reese, Randolph
Railways: surface track
Roadbed
Street crossing
238287, 238304, E01C 904
Patent
active
044151209
ABSTRACT:
A device for sleepers for railway tracks, which sleepers (6) are adapted to support a number of rails (5) which are situated in a crossover point with an adjacent roadway. The device includes an element (28) with an underside which is adapted to rest, preferably via an intermediate layer (38), against the top of the sleeper (6) which may be planar. A groove (24) is adapted to form a support for the foot (22) of the rail (5). A first heel (33) is on the one side of said groove (24) for the rail foot (22). At the opposite side of said groove (24) in relation to the first heel (33) is another heel (31) with a cylindrical top opposite the underside of the element, the axis of which top extends substantially parallel to the rail (5). Positions (29, 30) are included for clamping devices (25, 26) to secure the rail and the element to the sleeper (6). The first heel (33 ) is adapted to be placed inside the rail (5) in a railway track and is adapted to form, with its top, a support for the one edge of a slab (9), the other edge of which extends to the other rail (5) belonging to the railway track and to be supported by a corresponding heel on a corresponding element. The other heel (31) is adapted to be situated outside the rail (5) and to form a support for an edge, provided with a corresponding cylindrical recess (32), on another slab (8), the other edge of which extends to the edge of the roadway so that the cylindrical heel forms a pivot bearing for the slab on displacements in height occurring between the edge of the roadway and the sleeper (6).
REFERENCES:
patent: 1812707 (1931-06-01), Nagel
patent: 2008946 (1935-07-01), Cooper
patent: 2076019 (1937-04-01), Fifield
patent: 4155507 (1979-05-01), Chierici et al.
patent: 4236670 (1980-12-01), Limmergard et al.
patent: 4289273 (1981-09-01), Schmidt
A. Betong AB
Reese Randolph
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