发明名称 Composite core for intersection of tramway with grooved rails - has non-aligned rail ends welded together and bolted to cast durable steel core
摘要 <p>The composite heart piece (5) is for use in the intersections of permanent way railway lines, and is esp. applicable to urban tramway rails with grooved heads. The two rails may be formed by joining two rails (1, 2 and 3, 4) constituting non-aligned legs of the intersection, and the two constituent rails may be of the opposite hand i.e. the grooves (6, 6') are on the opposite sides. The rails are connected by welding the webs together with the interior base flanges cut away and are bolted to the core (5). The core may replace the heads of the rails in the intersection zone to provide a hard-wearing surface.</p>
申请公布号 FR2396833(A1) 申请公布日期 1979.02.02
申请号 FR19770021595 申请日期 1977.07.08
申请人 DIETRICH ET CIE SA DE 发明人
分类号 E01B7/12;(IPC1-7):01B7/12 主分类号 E01B7/12
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