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Improvements in Apparatus for Concentrating Acid

Description: Patent for an apparatus for concentrating acid. This apparatus relates to concentrating weak acid taken from petroleum sludge.
Date: October 10, 1911
Creator: Gray, Elisha Burritt
Partner: UNT Libraries Government Documents Department

Electrically-Actuated Sawmill Set-Works

Description: Patent for an electrically-actuated sawmill set-works that regulates movement of the clutch-stop and set-shaft, which determines the extent of knee-movement including illustrations.
Date: October 16, 1900
Creator: Carroll, William M.
Partner: UNT Libraries Government Documents Department

Air-Craft Propeller

Description: Patent for an air craft propeller that reduces air resistance.
Date: October 8, 1912
Creator: Koiw, Julius
Partner: UNT Libraries Government Documents Department

Fence Post Mold

Description: Patent for fence post mold. Illustration included.
Date: October 9, 1906
Creator: Collier, William Reid
Partner: UNT Libraries Government Documents Department

Steam-Feed.

Description: Patent for an improved steam feed for use in sawmill carriage feeds.
Date: October 3, 1911
Creator: Black, Lee J.
Partner: UNT Libraries Government Documents Department

Portable Press for Hay

Description: Patent for a portable press for hay. "My invention relates to portable hay and other presses, and has for its objects, first, an improved power-transmission and lever device for pressing or forcing the hay or other material into th box or frame of the press" (line 8-13). Illustration included.
Date: October 13, 1903
Creator: McKean, Frank
Partner: UNT Libraries Government Documents Department

Method Of Drilling Wells

Description: Patent for a method of drilling wells. This invention is known as the rotary process that deals with alluvial deposits at different levels such as sand, water flows, gravel, gas under pressure, and boulders. Illustration included.
Date: October 30, 1906
Creator: Decker, Harry R.
Partner: UNT Libraries Government Documents Department

Combination Chair and Ironing Board

Description: Patent for a chair that can fold and act as an ironing board. Illustration included.
Date: October 19, 1909
Creator: Hufft, Rose; Harrell, Cullen Carr & Hufft, John J.
Partner: UNT Libraries Government Documents Department

Lubricator

Description: Patent for a lubricator used for lubricating graphite that is utilized in air brake systems. Illustrations included.
Date: October 5, 1909
Creator: Turner, William Orris
Partner: UNT Libraries Government Documents Department

Reclining Rocking-Chair.

Description: Patent for a reclining rocking chair, which can be rocked while upright or reclined.
Date: October 4, 1910
Creator: Swindler, Edgar L.
Partner: UNT Libraries Government Documents Department

Apparatus for Treating Granular Materials

Description: Patent for an apparatus for treating granular materials. Illustrations included.
Date: October 29, 1912
Creator: Lanaux, Alfred A.
Partner: UNT Libraries Government Documents Department

Means for Propelling Boats.

Description: Patent for a means for propelling boats that uses pneumatic pressure and does not use propellers and screws. The invention has increased propulsion.
Date: October 16, 1894
Creator: Higgins, Pattillo
Partner: UNT Libraries Government Documents Department

Dredging Apparatus.

Description: Patent for an improved dredging apparatus that plows or scoops, and has "an endless traveling elevator, the latter, being arranged in a rigid frame that is supported at a suitable angle, and the scoop being hinged to the lower end of said frame so that it works horizontally, or practically so" (lines 9-14).
Date: October 30, 1894
Creator: Hyatt, Frank A.
Partner: UNT Libraries Government Documents Department

WRENCH.

Description: Patent for wrench related device "for locking the gripping element after it is applied to the pipe or other pipe (lines 14-15)" including instructions and illustration.
Date: October 19, 1915
Creator: Black, Lee J.
Partner: UNT Libraries Government Documents Department

Variable-Speed-Transmission Gearing.

Description: Patent for an improved transmission gearing that provides "variable speed transmission gearing" (line 10) which allows for different forward and reverse speeds, including illustrations. The variable speed transmission gearing is designed primarily for automobiles and motor vehicles.
Date: October 5, 1915
Creator: Maschek, Henry
Partner: UNT Libraries Government Documents Department