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5 Matching Results
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5
Well Drill.
Patent for a new and improved well drill. This design "consists in a novel construction of a tool for boring or drilling wells, which tool has the drill-bit and the reamer so united as to operate simultaneously, and thus serve the functions of the so-called "Z-bit" and effectually prevent the tool from being thrown laterally out of the line of cutting when striking bowlders; and the invention also consists in an improved construction of the coupling of the tool to the sinker-bar or drill-bar" (lines 9-18).
Date:
July 17, 1888
Creator:
Titus, Silas W. & Clark, Chester C.
Object Type:
Patent
System:
The Portal to Texas History
Improvement in Breech-Loading Fire-Arms.
Patent for improved maneuvering and loading of firearms while riding horseback.
Date:
July 20, 1878
Creator:
Morrison, John T.
Object Type:
Patent
System:
The Portal to Texas History
Lawn-Mower.
Patent for lawn mower with special stationary blades; designed to improve the operation of the rotary blades with which the stationary blades come into contact, thus "insuring an easy running, and a perfectly clean and smooth shearing of the grass, and prevent any shock, grinding or clicking, when the contact is made" (lines 8-11).
Date:
July 21, 1914
Creator:
Clark, Josepsh Chester
Object Type:
Patent
System:
The Portal to Texas History
Marker.
Patent for improvement in markers "used in filing and card index cabinets" (lines 6-7).Meant to "provide a light, simply constructed V-shaped device" (lines 11-13), to mark the location of papers or files that have been temporarily moved from a filing system.
Date:
July 25, 1916
Creator:
Wells, Spencer A.
Object Type:
Patent
System:
The Portal to Texas History
Occurrence, Availability, and Chemical Quality of Ground Water in the Edwards Plateau Region of Texas
Report on
Date:
July 1979
Creator:
Walker, Loyd E.
Object Type:
Report
System:
The Portal to Texas History