Abstract: A railroad sleeper (1) for fixation of at least a pair of rails (2,2?) of a railroad network is disclosed, including a contact surface (3), wherein each rail of the pair of rails (2,2?) is fixed spaced apart from each other, the railroad sleeper (1) being configured by including a hollow sector (4) delimited by association of the contact surface (3) with the anchorage walls (5,5?), thus establishing a free portion (17) adjacent to the anchorage walls (5,5?) and opposite the contact surface (3). An embodiment in which the hollow sector (4) of the railroad sleeper is delimited by a support surface and the process of manufacturing a railroad sleeper is also disclosed.
Type:
Grant
Filed:
June 3, 2020
Date of Patent:
May 16, 2023
Assignee:
Braskem S.A.
Inventors:
Guilherme Longa Nose, Daniel Wenzer Trevizan, Luiz Francisco Muniz da Silva, Jorge Luis Goudene Spada, Claudio Pereira da Silva Zamith, Walter Vidon Junior, Renato Teixeira Vargas
Abstract: A railroad communication tie for use in a railway track system is positionable in ballast. The tie includes an elongated unitary steel channel body having a web and a pair of sidewalls formed integral with opposite edges of the web. The channel body has a pair of opposed ends. A flared spade is formed integral with each end of the body. The flared spade has a communications conduit aperture. An elongated communications conduit is movably mounted in the communications conduit apertures and said conduit is free to move relative to the spades.
Abstract: A steel railroad sleeper of inverted channel section whose open ends can selectively be closed by end plates detachably connected one to open end of the sleeper and whose sides incline downwardly and outwardly from the upper rail supporting surface of the sleeper, the sleeper being produced by cold forming strip steel. The sleeper may be produced by cold pressing or cold rolling and the end plates may also be produced by cold forming steel strip. In one embodiment the sleeper has a waisted section of reduced width. This waisted section may be positioned generally midway along the length of the sleeper. The central section of the sleeper interior may be filled with a material to prevent the ingress of ballast to this central region.
Abstract: An improved unitary steel tie which is positionable in ballast of a railway track system includes an elongated channel body. The channel body includes an elongated web and a pair of sidewalls formed integral with opposite edges of the web. The channel body has a pair of opposed ends. An integral rail seat is adjacent to each of the opposed ends. Each rail seat is formed on the web and is adapted for connecting a rail to the web. An indentation is formed in each sidewall adjacent to each end of the body. The indentations at each end are opposed to each other forming a reduced section between the sidewalls at each end of the body to restrict movement of ballast toward the respective end and along the length of the body between the sidewalls. An apex is formed in the web above each reduced section and each apex is substantially the same height as the other apex. The apexes are the high points of the web. A flared spade is formed integral with each end of the body.