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Trolley-Pole.

Description: Patent for a trolley pole, which attaches easily to the wire and can be placed on it by the operator without him leaving his station on the trolley.
Date: March 16, 1909
Creator: Barr, George T., Sr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Railway-Tie.

Description: Patent for a composite railway tie that is durable and adjustable and can be used for both trolley and steam rail systems.
Date: April 23, 1912
Creator: Ogden, James D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Automatic Recording Apparatus for Vehicles.

Description: Patent for an improved automatic passenger register and mileage recorder for vehicles that travel on rails. It consists of a roller that is actives by a time motor, a strip that the roller moves, a pressure roller, a pair of rollers that a record sheet is wound between, a mechanism that controls movements of the pair of rollers, electromagnets that are connected to the seats, armature levers that mark the electromagnets current, a bell crank lever that marks the moving record sheet, and a sprin… more
Date: October 10, 1893
Creator: Baade, John
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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