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Draft-Equalizer.

Description: Patent for Draft Equalizer. Patent states this invention "relates to the new and useful improvements in draft-equalizers" (lines 10-11). Includes instructions and illustrations.
Date: October 7, 1919
Creator: Dudley, Thomas J. & Bryant, Marvin H.
Item Type: Refine your search to only Patent

Method of Sealing the Walls of Deep Wells

Description: Patent for a new and useful method of dealing the walls of deep wells in which the means for lining oil wells by the use of the customary metal casing is avoided, the cost is very materially reduced, and numerous expenses and failures are avoided.
Date: November 29, 1921
Creator: Nolan, William E.
Item Type: Refine your search to only Patent

Cycle-Car

Description: Patent for a cycle car that can be steered and propelled by hands only and can be used with ordinary bicycles.
Date: November 29, 1921
Creator: {Payne, Luther M.}; {Miller, Lee A.} & {Douglas, John J.}
Item Type: Refine your search to only Patent

Linting Machine.

Description: Patent for a linting machine (Carver type) that contains an air pocket at the end of the passage to prevent cotton from clogging the machine.
Date: August 10, 1920
Creator: Woodrow, George N. & Bruce, Thomas D.
Item Type: Refine your search to only Patent

Water-Gage.

Description: Patent for a water-gage measuring the height or volume of water in a steam boiler, particularly those "held closed by the weight of the operating handle" (lines 11-12). The device is designed for simple manufacture and easy assembly & disassembly without tools, and features a valve seat that stays in place, illustrations included.
Date: December 30, 1919
Creator: Leidecker, Helmoth M.
Item Type: Refine your search to only Patent

Fruit-Drier.

Description: Patent for a fruit drier that includes "a series of hinged trays adapted to be folded into small compact form." (lines 11-13) including instructions and illustrations.
Date: March 24, 1914
Creator: Reid, William
Item Type: Refine your search to only Patent
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