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Apparatus for Controlling Trolley Poles

Description: Patent for an apparatus for controlling trolley poles. "This invention relates to an apparatus for controlling trolley poles employed for effecting electrical connection between a trolley wire and a motor on a car, and has for its object to provide improved means for automatically throwing the trolley into position to be placed in engagement with the trolley wire" (line 9-15). Illustrations included.
Date: November 10, 1903
Creator: Bogue, Judson L. & Jennings, David M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

[Travis Street in Sherman, Texas]

Description: Copy photo of the view of Travis Street from T&P Rail Lines in Sherman, Texas. There are people on the side of the street and two men riding horses in the street. There is a trolley in the street as well. Written on the bottom of the photo is "[sic] Res. E Business Part of Travis St. Sherman." Below the image are written "Scenes along the T&P 1895-1896" and "T&P."
Date: 1895/1896
Item Type: Refine your search to only Photograph
Partner: The Grace Museum

Trolly Wheel and Harp.

Description: Patent for trolley wheels, where "the transmission of the current through the wheel to the harp is maintained at the maximum and the necessary wear of the relatively movable parts reduced to a minimum" (lines 11-15).
Date: May 7, 1912
Creator: Neighbour, William W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Trolley-Harp.

Description: Patent for improvements to the efficiency of trolley harps by changing how the currents that power "overhead type electric car systems" (lines 13-14) are conducted.
Date: May 15, 1917
Creator: Carmack, James H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rail-Fastening Device.

Description: Patent for a rail fastening device for use in building street car tracks on roads with concrete foundations. The fastener is put in place in the wet concrete and held fast there by its hardening and eliminates the need for cross ties.
Date: April 23, 1907
Creator: Crerar, James P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Conduit Electric Railway.

Description: Patent for a surface trolley for electric railways that operates "upon the surface of the pavement or ground between the tracks of the road, for connecting the car with the motor power, in place of the trolley and over head wires now suspended upon the unsightly poles in the center or at the sides of the street, which are found to be very objectionable on account of their obstructing the passageway in the streets and upon the side walks, and the wires preventing the free movement of fire compan… more
Date: April 11, 1893
Creator: de Voe, William R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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