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Valve-Grinder.

Description: Patent for "a tool adapted to rotate valves of an internal combustion engine for grinding the same on their seats." (lines 9-11) It is adapted to connect to the cylinder "of the engine in such a manner as to permit accurate and quick operation of the valve for grinding it, and whereby the handle of the tool may be set at a convenient angle for manipulation, and may be lengthened or shortened according to requirements." (lines 15-21)
Date: July 13, 1920
Creator: Ralston, John
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Valve Control for Radiator Drain-Cocks.

Description: Patent for "controlling devices for operating the valves of radiator drain cocks and for cleaning the drain cock pipe, and the object is to provide a convenient device by which the drain cock valve can be easily and quickly closed or opened and by which the drain pipe can be cleaned and kept cleaned." (lines 10-16)
Date: July 27, 1920
Creator: Brandt, Herman
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Liquid-Measuring Device

Description: Patent for a device that determines the amount of liquid (particularly gasoline and oil) that flows from its glass container with the end of facilitating the exchange of goods, including illustrations.
Date: May 25, 1920
Creator: Meredith, John Dewitt
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Lawn-Mower Sharpener.

Description: Patent for a new device that improves lawn mower sharpeners, including illustrations. It is a detachable device that attaches directly to the lawn mower and sharpens the blades while in use.
Date: October 17, 1922
Creator: Lancaster, Edmund Banning
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Insecticide for Boll-Weevils.

Description: Patent for boll-weevil insecticide with novel method of compounding. Arsenic and baking soda are combined with wood ash to create a dust which kills the insects as an inhalent instead of needing to be consumed by the insects in order to be effective.
Date: November 1, 1921
Creator: Koenig, Philipp
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Lens-Holder.

Description: Patent for a lens holder meant to provide a "simple, relatively inexpensive and efficient means" (line 10) of securing the lens in the headlamps of an automobile or similar lamp casing.
Date: April 13, 1920
Creator: Marshall, Stanley G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Lock-Washer.

Description: Patent for "an improved lock washer especially adapted for locking nuts" (lines 10-11) that was designed to "be interposed between the nut and a member to be clamped by the nut" (lines 14-16).
Date: June 8, 1920
Creator: Medbery, Clinton A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Vaporizing Attachment.

Description: Patent for improvements in the vaporizing attachment on a printing press that will allow vapor to be applied to the paper as it goes through the printing press.
Date: June 1, 1920
Creator: Pope, Turner T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wall Construction

Description: Patent for a relatively simple constructed wall that is built using concrete slabs. It is constructed in a manner that requires less material thus resulting in a wall that is hollow all the while providing sufficient strength to hold weight and pressure. Includes illustrations.
Date: April 19, 1921
Creator: Needham, Edward F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Jar and Can Lifter

Description: Patent for Jar and Can lifter designed to assist in transporting a can or jar. It is made from wire and acts as a removable handle.
Date: January 24, 1920
Creator: Hilley, Seaborn A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Liquid-Fuel Burner.

Description: Patent for improvements in liquid fuel burners that can handle intense heat and can be mass-produced.
Date: September 27, 1921
Creator: Hosek, Charles
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Locomotive Wheel Hub and Plate

Description: Patent for improvements to locomotive wheel hubs and plates with the purpose of "inhibiting adjustment of the plate beyond the safety point" (lines 20-21), including illustrations.
Date: November 7, 1922
Creator: Lambert, Floyd D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Knee Pad.

Description: Patent for an improved knee pad, which provides better ventilation and cushioning to the knee, including illustrations.
Date: November 21, 1922
Creator: Rylander, Parrish H.
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

Typewriter-Desk.

Description: Patent for typewriter desk which has a compartment with a moveable platform. The platform supports a typewriter, and is "capable of being raised and lowered within the desk so as to position the typewriter for use or non-use as desired". The compartment has a lid, which when in closed position, provides an even writing or resting surface.
Date: April 26, 1921
Creator: Beard, Margurite E.
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

Irrigator

Description: Patent for an irrigator used to treat piles (hemorrhoids) and similar diseases. A nozzle delivers liquid to wash the surface of the mucus coating of the afflicted area, and then drains the liquid without obstructing the flow of the liquid. Patent includes illustrations.
Date: January 18, 1921
Creator: Phillips, Edwin R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Lubricating Oil Dispenser

Description: Patent for a lubricating oil dispenser designed specifically to dispense lubricants and similar liquids. Dispenser is formed with a transparent container tubes to show the customer the character of the liquid being dispensed.
Date: May 30, 1922
Creator: Fenaes, Alfred R. & Kennedy, William H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Internal Combustion Engine

Description: Patent for a improved Internal Combustion Engine. The improvement is the construction of the ignition of the internal combustion engine where the fuel in the compression chamber is ignited explosion of a different fuel of a more highly explosive nature.
Date: August 9, 1921
Creator: Simpson, Joseph Ryan.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department
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