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Improvement in Tanning.

Description: Patent for improvements in tanning materials: "extractive matter for the manufacture of leather from the wood and bark of the mesquit - a tree of extensive growth on the prairies of western and north western Texas" (lines 9-13).
Date: December 5, 1865
Creator: Park, John E.
Item Type: Refine your search to only Patent

Improvement in Gun-Locks.

Description: Patent for gun locks: "This invention relates to the arrangement of a complete hair trigger for Colt's revolving pistols, which is so constructed that it may be adjusted to anyone of said pistols without the assistance of a gunsmith, the only tool required for the purpose being a screw driver." (lines 21-26.)
Date: September 11, 1866
Creator: Schenck, F.
Item Type: Refine your search to only Patent

Improvement in Hot-Air, Steam, and Water-Gauge.

Description: Patent for improvements in hot air, harmonic steam, and water gauges: "In this invention several tubes pass through the boiler, some under and some above the water, through which currents of air are induced by the heat of the water or steam surrounding them" (lines 8-9).
Date: October 8, 1867
Creator: Walker, James C.
Item Type: Refine your search to only Patent

Improved Cosmetic.

Description: Patent for improvement in cosmetics by using various chemicals to enhance the cosmetics in which it “can remove freckles or tan-discoloration from the skin, and for improving the complexion.” (Line 5-6) Formula for the improved cosmetic is included. Instructions on how to prepare the cosmetic and how to use the cosmetic are described. There is no illustration.
Date: February 25, 1868
Creator: Wilson, I. M.
Item Type: Refine your search to only Patent
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