UNT Libraries Government Documents Department - 44 Matching Results

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Refrigerating Machine.

Description: Patent for a refrigerating machine that works with a double jacketed brine cylinder with a self-contained expansion tank for the coolant. It is meant to provide cooling with small displacement of the cylinder, but with great circulation of the brine.
Date: December 31, 1918
Creator: Bell, Samuel R.
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

Traveling Block.

Description: Patent for a traveling block construction. The invention resides in the combination and arrangement of parts and in the details of construction that provide a novel form of nut to be positioned on the ends of the supporting shaft of the block, the nuts being hollowed out to provide oil chambers for supplying the shaft with a lubricant.
Date: December 16, 1920
Creator: Boykin, Burwell Jr.
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

Chuck.

Description: Patent for chucks that secure pipes, preventing movement when being cut or threaded, including illustrations.
Date: December 27, 1921
Creator: Castanie, William
Item Type: Refine your search to only Patent

Lawn Mower

Description: Patent for a lawn mower in which the means for adjusting the intermediate blade has been created so that a groove for a predetermined depth can be cut, and easy removal of the blade when it is desired to sharpen the same. Additionally, a ground-engaging roller is included to keep the machine at the same level so that the knife will cut into the ground at an even depth.
Date: December 5, 1919
Creator: Coniglio Carmelo
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

Power-Hammer.

Description: Patent for a power hammer that can utilize any power source and only needs one person to operate it. The design also uses less parts, making it more affordable.
Date: December 13, 1921
Creator: Karlson, Eric Fritjof
Item Type: Refine your search to only Patent
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