PERMANENT WAY Russian patent published in 1997 - IPC

FIELD: rail transport; tram tracks on bearing sectional reinforced concrete members. SUBSTANCE: permanent way has two underrail bases each containing outer side lower web 2, inner longitudinal cutout 3 with longitudinal recesses 4 uniformly arranged lengthwise along cutout 3 and opening into the latter. Semities 5 are placed in recesses 4 and rails are secured on semities. Covering plates 7 are installed between rails from inner side. Each plate is made U-shaped in vertical cross section and is provided with two side brackets resting on projections of underrail base 1 between recesses 4 for semities 5 and adjoining the heads of rails 6 from inner side. Vertical ribs are lowered into inner longitudinal cutoff 3 of underrail base 1, thus closing U-shaped cross recesses 4. Holes provided in brackets from bottom side serve to fix semities 5 in vertical position. Cantilevers of L-shaped side members 12 are joined with rail heads from outer side. Vertical support ribs 13 of cantilevers rest on outer side lower web 2 of underrail base 1. EFFECT: improved quality of permanent way. 3 dwg