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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
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.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improving Oils.

Description: Patent for a method of improving the quality of more volatile petroleum oils, such as gasoline and burning oils.
Date: December 23, 1919
Creator: McAfee, Almer M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department

Heel-Sweep.

Description: Patent for a "heel sweep for a plow. The invention aims to provide a sweep which will possess great strength..."
Date: December 16, 1919
Creator: Kelly, George Dudley
Item Type: Refine your search to only Patent
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
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department
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