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Valve-Lifter For Automobiles

Description: Patent for improvement in valve-lifters for automobiles. The object of the device is to compress a spring of the intake and exhaust valves of an automobile. Also for the quick removal of the valve.
Date: February 15, 1921
Creator: Patterson, George G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Internal Combustion Engine.

Description: Patent for an internal combustion engine consisting of a valve and cynlinder. The engine is made to avoid dead air space commonly present in valve casings.
Date: February 15, 1921
Creator: Blumberg, Hamilton G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Lock-Nut.

Description: Patent for a nut lock that secures two nuts of a pair within a tubular casing through opposing threading and rotation, where one nut is immobilized and the other remaining adjustable to meet situational need. Illustrations included.
Date: February 17, 1920
Creator: Greer, Benjamin J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well-Drilling Rig.

Description: Patent, including illustrations, for "an improved well drilling rig or apparatus" which provides "a simple, efficient, and practical machine of this kind including revoluble means having a device operatively connected to a walking beam (from which a drilling tool is suspended), so that upon every complete revolution of the revoluble means, the drilling tool or bit will be given two direct drops, each alternating with the lifting movement of the drill bit" (page 1, lines 11-21).
Date: February 3, 1920
Creator: Bradford, Robert M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Windmill.

Description: Patent for an improved windmill which allows for the conversion of "a rotating motion into a reciprocatory motion" (line 15-16) which allows the windmill to be "manufactured and sold at a comparatively low rate" (line 41-43).
Date: February 8, 1921
Creator: Cryer, Henry M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well Screen.

Description: Patent for a well screen device. The device can keep particulates out of the well water while also restricting water to flow into the well without being released back into the soil.
Date: February 1, 1921
Creator: McLean, Marrs
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well-Drilling Device.

Description: Patent for adding a drilling stem to a well-drilling device, with illustration. This invention will improve operation of devices.
Date: February 10, 1920
Creator: Church, Walter Lee
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Window Shade

Description: Patent for "Improvements in Window-Shades" (line 6) including illustrations.
Date: February 10, 1920
Creator: Johnson, Charles G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Building-Block.

Description: Patent for building block that is easily formed or molded. The building block forms tiers to easy move around and modify.
Date: February 1, 1921
Creator: Pace, Vara L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tractor.

Description: Patent for an improvement in tractors that allowed adjustment to the tread or allowed distance between traction elements.
Date: February 10, 1920
Creator: Franklin, Floyd P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Trap.

Description: Patent for a simple live trap suitable for use both on land and in water.
Date: February 10, 1920
Creator: Peavy, Josiah
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wheel Tread.

Description: Patent for wheel treads designed for heavy vehicles. The metal shoes on the tread are to help enable the vehicle to go over both hard and soft surfaces.
Date: February 8, 1921
Creator: Ingram, Joseph D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Trap.

Description: Patent for animal trap especially designed for trapping rats, mice, minks and other small animals. This animal trap has a pair of pivoted doors arranged on the opposite sides of a baiting standard, which is also vertically adjustable. The purpose of this trap is to drown the animals that have become entrapped.
Date: February 1, 1921
Creator: Wigington, William L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tractor Turning Mechanism.

Description: Patent for a tractor turning mechanism that will allow tractors to turn at any angle up to a right angle by locking one of the driving ground wheels into a pivot point for the other wheels of the tractor.
Date: February 17, 1920
Creator: Chenoweth, William B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Hydrocarbon-Burner.

Description: Patent for "new and useful improvements in Hydrocarbon-Burners" (lines 6-7) including instructions and illustrations.
Date: February 10, 1920
Creator: Wynne, William P. & Wynne, James Harry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Staple-Setting Device.

Description: Patent for a staple setting device. This invention sets staples in blind slats and sticks with a special reference to assist with the setting of staples for the purposes of both construction and repair.
Date: February 21, 1922
Creator: Chamberlain, Kit Carson
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tobacco-Pipe.

Description: Patent for a new tobacco pipe capable of trapping nicotine in a removable bowl to facilitate the cleaning process. The pipe also includes a trap for saliva that prevents any saliva from returning to the smoker's mouth regardless of pipe angle. The pipe is manufactured with minimal parts reducing need for repair.
Date: February 3, 1920
Creator: Gerhard, William Henry.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Manufacture of Aluminum Chloride.

Description: Patent for improvements of manufacture of aluminum chloride, comprising "a method of utilizing certain oily residues which are the result of treatment of oils with aluminum chloride or with substances capable of forming aluminum chloride" (lines 11-14), including illustrations.
Date: February 7, 1922
Creator: McAfee, Almer M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tie-Mold.

Description: Patent, including illustrations, for an improved railroad tie mold relating to a previous patent (1229154) by the same inventor (Frederick C. Shearer). Objects of the invention include improved recesses, depressions, and support for interior structural elements during cement pouring.
Date: February 24, 1920
Creator: Shearer, Frederick C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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