Patent for frames for trunks, boxes, vehicle-bodies, etc., which requires no bolts and can be cast in a single piece of metal. Includes instructions and illustrations.
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).
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.
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.
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.
This dialog allows you to filter your current search.
Each of the U.S. States listed note their name and the number of records that will be limited down to if you choose that option.
This dialog allows you to filter your current search.
Each of the Counties listed note their name and the number of records that will be limited down to if you choose that option.
The list can be sorted by name or the count.