Hollow sleeper
AssigneeSchwihag AG
InventorsRoland Buda, Frank Meyer
Life of this patent
Estimating the term…
Abstract
In the case of a hollow sleeper (1) for adjusting devices of switch blades of railway points, movable common crossings or cable crossings in any desired sections of track and points, formed as an upwardly open hollow sleeper profile with a planar sleeper underside (2), for fitting in a track skeleton, wherein the cross-sectional width and height are made to match a normal concrete, wooden or steel sleeper, the positional stability on ballast can be improved if the sleeper underside (2) of the hollow sleeper (1) is formed with at least one sunken, downwardly open chamber (5).
Claims6
A hollow cast sleeper for actuating elements of switch blades, movable frogs, or cable crossings in track and switch sections, the sleeper comprising
- an upwardly open hollow cast sleeper profile with a planar sleeper lower face engageable in a track bed, having at least one recessed downwardly open cavity, and having a peripheral, annular and downwardly projecting wall or frame that borders the cavity;
- and
- an elastic or semielastic plate acting as a sleeper footing and fitting in the cavity.
Dependencies are inferred from the claim text.