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Acetylene-Gas Generator.

Description: Patent for "an improved apparatus for generating acetylene gas" (lines 12-13). The apparatus includes a carbid receptacle with a conical bottom and a cylindrical valve for better control of the carbid, as well as a gas tank with a gasometer-bell which operates the system.
Date: December 3, 1918
Creator: Lay, Claud
Item Type: Refine your search to only Patent

Adjustable Split Lock-Nut or Union

Description: Patent for an adjustable split cock-nut or union that is of a simple, cheap, and efficient construction with an intended use on valve rods of internal combustion engines. This device is designed to withstand direct pressure, blows, and torque forces.
Date: December 2, 1919
Creator: Dickinson, Harry E.
Item Type: Refine your search to only Patent

Aeroplane

Description: Patent for an aeroplane which has its equilibrium maintained by the operator through levers that bring the plane up or down.
Date: December 6, 1910
Creator: McManus, Augustus F. W.
Item Type: Refine your search to only Patent

Aeroplane.

Description: Patent for an aeroplane which is a device that is able to travel through the air due its shape and the reaction from atmosphere and gravity.
Date: December 16, 1913
Creator: Hanna, John G.
Item Type: Refine your search to only Patent

Agricultural Implement.

Description: Patent for a planter attachment that is readily controllable by the operator so as to allow rows or spots in the ground to be replanted. This is accomplished by controlling the flow of seeds from a seed box to a spout and by controlling the distance of the spout from the ground.
Date: December 17, 1918
Creator: Nettles, James P.
Item Type: Refine your search to only Patent

Agricultural Machine.

Description: Patent for an agricultural machine, a frame structure that can hold multiple types of agricultural devices and allows for the proper adjustment and manipulation of said devices without changing the frame's structure.
Date: December 30, 1919
Creator: Northcutt, John & Crawford, Miner
Item Type: Refine your search to only Patent

Aircraft Propelling and Manipulating

Description: Patent for air craft propelling systems for improvements in control of the aircraft by way of a "universal connection" (Lines 13-14) which makes for easier manipulation of the craft and aids in the prevention of air disasters.
Date: December 23, 1919
Creator: Schelb, Peter J.
Item Type: Refine your search to only Patent

Ant-Trap.

Description: Patent for ant traps that has a body portion with upper and lower inlet chambers. The trap is connected with the upper inlet chamber by a passage-way through which the ants may pass.
Date: December 19, 1911
Creator: Seifert, Adolf R. R. & Campbell, Bertha
Item Type: Refine your search to only Patent

Apparatus for Curing Tire Casings.

Description: Patent for a more efficient system for curing tire casings. The new patented apparatus was capable of providing both smooth and ribbed tire textures by way of aluminum tips and molds. Additionally, the apparatus provided retreading and faster curing of pneumatic tires.
Date: December 2, 1919
Creator: Bongio, Philip P. & Stephenson, Elonzo
Item Type: Refine your search to only Patent

Apparatus for Sulfur Mining

Description: Patent for "new and useful improvement" for sulfur mining by Mr. Robert Carmichael. This device has particular application for mining in subterranean environments, "by use of pumping a heated fluid down into contact with a sulfur strata" (lines 14-15).
Date: December 9, 1919
Creator: Carmichael, Robert E.
Item Type: Refine your search to only Patent

Artificial Hand-Grip.

Description: Patent for an improvement to artificial hand-grips that includes a pair of jaws that attaches to an artificial arm and allows wearers to perform various activities.
Date: December 31, 1918
Creator: Corley, Quentin D.
Item Type: Refine your search to only Patent

Athletic Shoe

Description: Patent for improvements to athletic shoes for men, women, and children that improve the comfort of the shoe, support the anatomy of the foot, and prevent “falling arches and other foot ailments” (p. 1, lines 22-23).
Date: December 3, 1918
Creator: Rokahr, Charles
Item Type: Refine your search to only Patent
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