BRIDGING FOR RAILROAD CROSSING AND METHOD OF BRIDGING CONSTRUCTION (VERSIONS) Russian patent published in 2003 - IPC

FIELD: transport construction; designed for construction of railroad bridgings in points of motor road and railroad crossings. SUBSTANCE: bridging has blocks of elastomer laid in longitudinal direction relative to track on both sides of rail track and in interrail space with formation of surface at level of upper edge of rails for movement of wheel transport across rail track. Said blocks are provided with projections directed in same longitudinal direction and holes which are used for block connection. Novelty consists in that said blocks include main blocks laid in pairs on one another, and connecting blocks. Said projection are made on main blocks of each pair. Pairs of main blocks are located with intervals to which protrudes opposite to each other projections of neighboring pairs. Holes are made in connecting blocks which are located in said intervals so that embrace said projections and in this way connect upper and lower main blocks in pair and neighboring pairs with each other. Novelty in one version of method consists in that accuracy of shape of side surfaces of formed products is ensures by thick-walled plates of equipment of required rigidity, and accuracy of shape of upper and/or lower surfaces of formed products with simultaneous heating of molded vulcanized mixture are ensured by rigid heating plates of equipment through upper and/or thin-walled plates of low rigidity, respectively. Novelty in other version, consists in that accuracy of shape of side surfaces of molded products is ensured by thick-walled plates of equipment of required rigidity, and product is molded from top and/or from bottom directly by heating plates of equipment. EFFECT: increased operate reliability and facilitate manufacture, and economical efficiency of manufacture of bridging of railroad crossings due to its design and offered versions. 7 cl, 12 dwg, 2 ex