UNT Libraries Government Documents Department - 184 Matching Results

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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.

Piano Key Bushing.

Description: Patent for an improved piano key bushing that designed to reduce sticking of the keys. Important parts of the bushing are made of metal and given ample room to expand without causing friction that might cause the keys to stick.
Date: August 25, 1914
Creator: Rogers, Karl C.


Description: Patent for an improved straightening machine to "straighten pipes, rails, and allied structures in an expeditious manner."
Date: May 12, 1914
Creator: Boykin, Burwell, Jr.


Description: Patent for friction clutch (used in automobiles) that would allow better control over rotary parts, even when driving in reverse. The improved control is partially due to the inclusion of a tension device unique to this clutch.
Date: July 21, 1914
Creator: Barry, David Redmond

Demountable Rim

Description: Patent for a durable yet inexpensive "demountable rim for vehicle wheels" (lines 12-13), with a sectional design for ease of attachment and removal.
Date: September 16, 1913
Creator: McPherson, Arthur


Description: Patent for a mud guard for two-wheeled vehicles such as bicycles and motorcycles. The purpose is to prevent mud or dirt from spattering on the rider.
Date: August 5, 1913
Creator: Humble, George L.


Description: Patent for a meter measuring the flow of liquid with a dial indicating gallons per hour for use in vehicles with internal combustion engines.
Date: April 21, 1914
Creator: Carroll, William G.


Description: Patent for a removable liner for a pump cylinder bore, including illustrations.
Date: February 24, 1914
Creator: Black, Lee J.

Starting Meachanism for Explosive Engines

Description: Patent for a mechanism for starting internal combustion engines, and particularly that form of starting devices in which a torsion spring is used.
Date: June 20, 1916
Creator: Appleman, Boyd K.

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.


Description: Patent for a rail joint designed to provide an improved joint employing means without the use of bolts for securely connecting adjacent rail ends together and holding them in place against longitudinal and spreading movement, including illustrations.
Date: January 4, 1916
Creator: Peppers, Jerry C.


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

Elevator and Conveyer for Concrete-Mixers.

Description: Patent for improvements in elevators and conveyers for concrete-mixers “whereby the mixed concrete can be fed to the wall mold at different elevations, the elevator being extended and the conveyer raised for constructing the successive stories of the building.” (Lines 17-21) Illustration is included.
Date: July 1, 1913
Creator: Miller, Frederick

Safety Oil-Tank

Description: Patent for improvements to safety oil tanks to prevent explosions, including illustrations.
Date: May 6, 1913
Creator: Smith, James H.

Mowing Machine

Description: Patent for various refinements in mowing machines.
Date: August 25, 1914
Creator: Caruthers, Edgar

Rotary Drilling Apparatus

Description: Patent for well drilling apparatus (commonly known as rotaries) with eliminated screws and nuts, and reduced minimum number of parts, and which provides a quickly and easily operable gripping device.
Date: June 22, 1915
Creator: Black, Lee J.


Description: Patent for a door hanger which supports heavy doors, in particular "barn doors, freight car doors, and the like."
Date: April 29, 1913
Creator: Caneavri, Joseph


Description: Patent for a life preserver with features to support both a wearer's waist and neck.
Date: August 12, 1913
Creator: Hansen, Carl Albert Edvard

Propelling or Power-Generating Mechanism.

Description: Patent for the constructions of a propelling machine of a vessel, which is provided an electric motor in an engine as a power source for propelling the vessel.
Date: July 22, 1913
Creator: Caldwell, John C.


Description: Patent for a feed-cooler "relates to driers, and more especially to those having vertical shafts; and the object of the same is to produce a machine for cooling and drying molasses feed, hot grain or any granular feed substance or material containing heat or moisture or both" (lines 12-18).
Date: July 6, 1915
Creator: Josey, Jackson E. & Miller, Rudolph C.


Description: Patent for improvements to pipe wrenches to a more simple design.
Date: February 16, 1915
Creator: Lewis, Guy V.


Description: Patent for an oil tank with an improved design for extinguishing fires inside the tanks and a means for allowing the escape of exploded gases upon accidental ignition.
Date: February 9, 1915
Creator: Wasson, Edgar Allen & Cooley, Francis Marion

Still for Distillation of Petroleum

Description: Patent for improvements in still design for distillation of petroleum or its products, providing relief for any suddenly formed vapors and preventing the oil from boiling over.
Date: July 24, 1917
Creator: Gallsworthy, Benjamin