UNT Libraries Government Documents Department - 3 Matching Results

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Churn.

Description: Patent for a new and improved churn. This design consists in "the staff-head having the slot . . . and opposite inside grooves, in combination with a dasher-stem head conforming to the recesses in the head and carrying a spring in an upper cavity thereof, a plunger having its toe resting upon said spring, and operative mechanism" (lines 77-83).
Date: June 28, 1887
Creator: Catchings, Thomas Jefferson
Item Type: Refine your search to only Patent

Rock Drill.

Description: Patent for a new and improved rock drill. This design consists in "the combination, with the bit having the inclined cutting-edge extending diagonally from one end to the other and the curved recesses formed in the sides of the bit, of the passage-ways or grooves at either end of said cutting-edge opening into the said recesses" (lines 64-70).
Date: December 28, 1886
Creator: Rader, Powell
Item Type: Refine your search to only Patent

Well Bucket.

Description: Patent for a new and improved well-bucket. This design consists in "the cylinder or body, the flaring bottom rim or hoop provided on its inner surface with suitable screw-threads, and also having on its lower peripheral portion diametrically-opposed lugs or projections, the perforated bottom pieced provided with suitable threads upon its peripheral portion, the upper curved or arched guide-arm having a central perforation and provided with screw-threaded ends having shoulders bearing against th… more
Date: August 28, 1888
Creator: Van Hook, John Lloyd
Item Type: Refine your search to only Patent
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