UNT Libraries Government Documents Department - 4 Matching Results

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Improvement in Draw-Gages.

Description: Patent for improving the manner in which leather straps may be cut and avoid slippage.
Date: June 25, 1878
Creator: Tays, John Henry

Improvement in Wheel-Plows.

Description: Patent for an improvement in wheel plows made so that "the plowing may be done by passing back and forth in parallel lines" (lines 17-18).
Date: September 5, 1871
Creator: Coreth, Rudolph

Improvement in Glass Globes or Reservoirs for Lamps.

Description: Patent for an "invention to prevent the breaking of glass globes used in kerosene lamps as reservoirs for the burning fluid; and this invention consists in the application around the reservoir of a rubber ring let into a groove, but projecting sufficiently to receive the concussion in case the lamp is overthrown." (Lines 10-16) Includes instructions and illustrations.
Date: April 16, 1872
Creator: Otto, Adolph
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