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Hydraulic Swivel

Description: Patent for the hydraulic swivel. This is an improvement to the hydraulic swivel that already exists. It involves "the rotary well-drilling machines, to permit the flow of water to the point of the drill." (Black)
Date: December 1, 1914
Creator: Black, Lee J.
Partner: UNT Libraries Government Documents Department

Lubricating Appara

Description: Patent for a lubricating apparatus used for internal combustion engines, whereby the lubricant or oil is forced, as by a pump, to a distributing tank containing oil under predetermined pressure, and from said tank permitted to drop by gravity or flow under pressure, as desired, to the elements of the engine to be lubricated.
Date: December 12, 1916
Creator: Shaw, Robert J.
Partner: UNT Libraries Government Documents Department

Smoke-Separator.

Description: Patent for "a new and improved smoke separator designed for use in connection with smelter furnaces and other apparatus, and arranged to effectively prevent poisonous or obnoxious gases from passing into the atmosphere, at the same time retaining and saving valuable matter contained in the smoke" (lines 9-16); including instructions and illustrations.
Date: December 9, 1913
Creator: Holmes, Clayton Floyd
Partner: UNT Libraries Government Documents Department

Refrigerator

Description: Patent for a refrigerator. This design is for use with blocks of ice. Illustrations included.
Date: December 28, 1909
Creator: Mitchel, Elias Walter
Partner: UNT Libraries Government Documents Department

Piston-Rod Packing.

Description: Patent for a piston packing device to decrease the wear on pistons in oil pumps.
Date: December 31, 1907
Creator: Martin, Robert Edward Lee
Partner: UNT Libraries Government Documents Department

Spudding and Pipe Driving Machine

Description: Patent for a spudding and pipe driving machine. This invention comprises "two oppositely disposed engines, a block and tackle for supporting either the spudding or driving mechanism, and means for imparting a jogging movement to the well rope to operate the drill or hammer" (line 13-18). Illustration includes.
Date: December 15, 1903
Creator: Higgins, Pattillo
Partner: UNT Libraries Government Documents Department

Polishing-Machine

Description: Patent for a metal polisher. Illustrations included.
Date: December 10, 1907
Creator: Nichols, Charlie M.
Partner: UNT Libraries Government Documents Department

Ice-Making Apparatus

Description: Patent for an ice-making apparatus that both cools the brine and makes the ice.
Date: December 31, 1912
Creator: Bell, Samuel Robert
Partner: UNT Libraries Government Documents Department

Oil Burning and Steam Generating Apparatus

Description: Patent for an oil burning and steam generating apparatus. Illustration included.
Date: December 14, 1909
Creator: Spurrier, John Wallace
Partner: UNT Libraries Government Documents Department

Street-Cleaner.

Description: Patent for a connection with the suction-head portion of pneumatic street sweepers that provides a dust or dirt disturbing element in the form of a brush or broom.
Date: December 26, 1905
Creator: Duke, Holmes
Partner: UNT Libraries Government Documents Department

Pipe Wrench.

Description: Patent for a new and improved pipe-wrench. This design consists in "the handle having the integral L-shaped foot at its end forming the rigid jaw of the wrench, said foot or jaw having its inner face curved, so as to receive and provide a bearing for the pipe, and its outer face at right angles to the handle, and said face being serrated, combined with the C-shaped swinging jaw pivoted at one end to the handle by a single bolt, and having its entire inner face serrated from the pivot-point to the outer end, and the teeth along the outer edge of the handle in close proximity to the rigid foot" (lines 12-24).
Date: December 17, 1889
Creator: Smith, James R.
Partner: UNT Libraries Government Documents Department

Dredging-Machine

Description: Patent for "a dredger which shall in an improved manner co-operate with and utilize the current in removing accumulations from the bed of channels" (lines 13-17).
Date: December 24, 1889
Creator: Fletcher, William A.
Partner: UNT Libraries Government Documents Department

Trunk-Strap Fastener.

Description: Patent for a device "whereby a trunk-strap after having been tightly drawn around a trunk or other article of baggage can be fastened without the use of the usual buckle," (lines 10-14) including instructions and illustrations.
Date: February 13, 1891
Creator: Webb, William James
Partner: UNT Libraries Government Documents Department

Log-Carrier.

Description: Patent for a log-carrier with an improved construction from a previous patent (No. 539,380). Improvements include a change in "the angle of strain of the draft-chain as the lever approaches the horizontal position...when the load is elevated" (lines 34-37). It also maintains "a uniform leverage without the use of guide-rollers or other means" (lines 54-56), and balances the sliding tongue so that "the team is relieved of the weight thereof" (line 62).
Date: December 8, 1896
Creator: Carroll, Joseph Alexander
Partner: UNT Libraries Government Documents Department