发明授权
- 专利标题: Precast railroad tie and tie plate
- 专利标题(中): 预制铁路和铁板
-
申请号: US31656772申请日: 1972-12-19
-
公开(公告)号: US3834620A公开(公告)日: 1974-09-10
- 发明人: BARLETT J
- 申请人: BARLETT J
- 专利权人: J Barlett
- 当前专利权人: J Barlett
- 优先权: US31656772 1972-12-19
- 主分类号: E01B3/32
- IPC分类号: E01B3/32 ; E01B3/40 ; E01B9/36 ; E01B2/00 ; E01B9/00 ; E01B9/40
摘要:
A reenforced precast concrete railroad tie having rail supporting and anchoring plates integrally molded thereinto. The rail plates in one form have a pair of L-shaped anchor and reenforcing rods welded to each of the gage and field sides of the tie plate, with portions of the rods having substantial longitudinal length to supplement other reenforcing rods molded longitudinally within the tie. The tie plate is further provided on its generally planar underside with either a welded on or integrally formed fixed threaded nut depending between each pair of the L-shaped rods at the gage and field sides to accomodate complementally threaded bolts cooperating with rail clip fasteners, the bolts passing through tie-plate-formed apertures correspondingly aligned with the threaded opening in the nuts. In another form the L-shaped rods are replaced by inverted T ot pi shaped rods. A novel apparatus subassembly and related method utilizing presently conventional components and techniques in a novelly improved manner is also contemplated herein.