GB190718187A - A New or Improved Means for Signalling the Approach of Tram Cars at Cross Roads where Overhead Electric Wires are Employed.
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A New or Improved Means for Signalling the Approach of Tram Cars at Cross Roads where Overhead Electric Wires are Employed.
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George Allen Bailey
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18,187. Bailey, G. A. Aug. 12. Drawings to Specification. Signals, road-vehicle.-In order to signal the approach of tramcars to cross roads, a projection such as an enlargement of the trolly wheel, is made to close a circuit to a contact bar connected with a lamp or semaphore placed so as to be visible from the cross road. The signal may be supported on wires fixed transversely to the track.
GB190718187D1907-08-121907-08-12A New or Improved Means for Signalling the Approach of Tram Cars at Cross Roads where Overhead Electric Wires are Employed.
ExpiredGB190718187A
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