Electricity: transmission to vehicles – Conductors – Third rail
Patent
1988-03-21
1989-06-20
Cherry, Johnny D.
Electricity: transmission to vehicles
Conductors
Third rail
238 10E, B60M 130
Patent
active
048411043
ABSTRACT:
An electric toy train track comprises a metal center rail on the base of which electrical insulating material has been extruded prior to roll-forming of the metal to the transverse shape for the rail. The center rail comprises in transverse cross section a horizontal base, an upright centrally supported on the base and a generally circular annular portion atop the upright that forms the top of the rail. The base has a bottom, sides, and a top. The electrical insulation is disposed in covering relation to the bottom and sides of the base and at least a portion of the top of the base immediately contiguous each side. The insulation is disposed on the base as two separate and discrete zones, one zone to one side of the upright and the other zone to the other side of the upright. The zones of insulation are separated at the bottom of the base by a gap that is disposed directly below the upright. The power rail is part of a toy train track that comprises parallel rails to each side of the power rail and metal cross ties which hold the three rails in assembly. The rails lie across the tops of the cross ties. Tabs on the cross ties hold the rails against the tops of the cross ties. The insulation on the power rail insulates the power rail from the cross ties.
REFERENCES:
patent: 526963 (1894-10-01), Cattori
patent: 600564 (1898-03-01), Walkins
patent: 889559 (1908-06-01), Tomlinson
patent: 2633301 (1953-03-01), Esch
patent: 3806672 (1974-04-01), Landis
Cherry Johnny D.
Hoge Gary C.
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