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in subjects: "switches"  
Results: 1 - 4

Electric Switch.

Description: Patent for an electric switch meant for the Edison three-wire system. It provides "means whereby the translating devices on either side of the middle wire may be supplied with electricity to the exclusion of those on the opposite side, the return-current from said translating devices being transmitted by way of the middle wire" (lines 11-16).
Date: November 12, 1895
Creator: Mottram, William T. M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Switch-Stand

Description: Patent for a switch stand with a switch signal light to indicate whether a railroad switch is open or closed.
Date: November 12, 1912
Creator: Phillips, Smith F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Combined Railway-Switch and Car-Replacing Mechanism.

Description: Patent for a combined railway-switch and car-replacing mechanism that is meant to "provide certain improved devices which can be arranged to operate as a switch mechanism, or as car replacing means, which can be easily manipulated, are of a simple construction and which will effectively serve for their intended purposes" (lines 11-16). It can be easily assembled and dissembled.
Date: November 27, 1894
Creator: Debose, Albert S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Switch.

Description: Patent for a multiple point switch that may be connected to a standard light socket.
Date: November 19, 1918
Creator: Kilmer, Edward J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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