UNT Libraries Government Documents Department - 8 Matching Results

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Gearing For Bicycles.

Description: Patent relating to "a new and useful improvement in gearing for bicycles and the like, and has for its object to so construct and arrange a device of this description as to avoid sudden shocks or jars which are occasioned by unevenness in the road-bed over which the machine is traveling, and also to enable the rider to exert a sudden force upon the pedals without straining the framework or wheels of the machine" (lines 9-18).
Date: August 17, 1897
Creator: Godfray, Ernest H.
Item Type: Refine your search to only Patent

Ore Concentrator

Description: Patent for a "machine for separating ores of precious metals, and particularly to that class of machines known as 'dry concentrators or separators,' used for separating fold ore by means of an air-blast over dry sand, gravel, quartz, etc." (lines 10-15). Illustrations and instructions are included.
Date: August 17, 1897
Creator: Waer, Luis M.
Item Type: Refine your search to only Patent

Rail Bond For Electric Railroads

Description: Patent for improvement to rail-bonds for electrical railroads to aid in maintaining electrical contact, which will then reduce the loosening of parts which results in broken contact. Illustrations and instructions are included.
Date: August 17, 1897
Creator: Hunter, Victor Emmet
Item Type: Refine your search to only Patent

Railway Cattle-Gate.

Description: Patent for a gate that automatically opens when cattle are crossing and closes afterward, so that the track is unobstructed for trains. Includes instructions and illustrations.
Date: August 17, 1897
Creator: Westmoreland, Joseph M. & Strange, Benjamin
Item Type: Refine your search to only Patent
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