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Depurator

Description: Patent for a depurator. "This invention realtes to an improved vacuum apparatus for medicinal purposes" (line 11-12). Illustrations included.
Date: August 4, 1903
Creator: Richards, Lloyd H.
Partner: UNT Libraries Government Documents Department

Apparatus for Oiling Railway-Tracks.

Description: Patent for improvements in mechanism for “applying oil to curves and switches of street railway tracks” (lines 6-7) by using an “oil-tank [that] is arranged in the upper position of the hood or shield over the car-wheel. The valve is in the bottom of the oil-space and may be controlled by a lever arranged to turn or lift in the valve, and under the valve is arranged the oiling-wheel, which runs lightly on the track or face of the car-wheel and applied the oil." (Page 2, lines 69-76) Includes il… more
Date: August 4, 1891
Creator: Ennis, Thomas L.
Partner: UNT Libraries Government Documents Department
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