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Antiskid Device
Patent for reinforcing the hinge of an antiskid device. Long studs on heavy foot plates on tires are used to brace the hinges not allowing them to wear down by dragging on the road surface.
Date:
February 17, 1920
Creator:
Smith, Ross
Object Type:
Patent
System:
The Portal to Texas History
Compound Air-Compressor.
Patent for an improved Compound Air-Compressor by having four cylinders, in pairings of a high pressure and a low pressure cylinders. The air from the low pressure cylinder will be fed to the high pressure cylinder. The pistons will work in succession rather than simultaneously.
Date:
February 17, 1920
Creator:
Jones, Oceola
Object Type:
Patent
System:
The Portal to Texas History
Cooperative Measurements of Radio Fading in 1925
Scientific paper issued by the Bureau of Standards over studies conducted on radio fading. As stated in the abstract, "the series of measurements on fading were devoted to studies of fading effects during the sunset period, effects during the solar eclipse of January 24, the fading variations throughout a 24-hour day, and the effects of high transmitting power on fading" (p. 419). This paper includes tables, maps, illustrations, and photographs.
Date:
August 17, 1927
Creator:
Dellinger, J. H.; Jolliffe, C. B. & Parkinson, T.
Object Type:
Report
System:
The UNT Digital Library
Lawn-Mower Sharpener.
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
Object Type:
Patent
System:
The Portal to Texas History
Lock-Nut.
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.
Object Type:
Patent
System:
The Portal to Texas History
Water-Level.
Patent for an instrument to determine a level at widely distant points or determining inclinations and which may be correctly read under conditions where a level cannot be held erect. Also known as hydrostatic leveling, this instrument is comprised of flexibly connected liquid containers that are spaced apart at certain distances.
Date:
August 17, 1920
Creator:
Kaspar, John & Beran, Rud F.
Object Type:
Patent
System:
The Portal to Texas History
Tractor Turning Mechanism.
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.
Object Type:
Patent
System:
The Portal to Texas History
Trombone.
Patent, including illustration, for "a musical instrument slide and is more particularly designated as a bearing or stocking for a trombone or other similar instruments in which it is desirable to provide a smooth bearing for the slidable part of the instrument" (page 1, lines 9-13).
Date:
February 17, 1920
Creator:
Ackley, William D.
Object Type:
Patent
System:
The Portal to Texas History
Sod Cutting and Disintegrating Machine.
Patent for a sod cutting and disintegrating machine that has a wheel-supported frame, inclined elevator, plow attached to the elevator, front truck, and disintegrating rollers.
Date:
August 17, 1920
Creator:
Thompson, Robert L.
Object Type:
Patent
System:
The Portal to Texas History
Hand Harvester.
Patent for a hand harvester that contains a plate and cutter to be used for harvesting corn and maize with more ease.
Date:
August 17, 1920
Creator:
Taylor, Joseph S.
Object Type:
Patent
System:
The Portal to Texas History
Gauge Cock.
Patent for steam gauge or test cocks that provides a simple and economical gauge cock for steam boilers by which the steam can be readily tested and which is adapted to close the orifice automatically to provide a constructions which will not be disarranged in operation.
Date:
October 17, 1922
Creator:
Woodruff, Lovell H.
Object Type:
Patent
System:
The Portal to Texas History
Electrical Testing Device.
Patent for new and useful improvements in electrical testing devices. The invention provides references to innovative changes that allow for improved high-tension coil and armature testing.
Date:
August 17, 1920
Creator:
Bierbower, Richard C.
Object Type:
Patent
System:
The Portal to Texas History
Electrical Testing Device
Patent for a device to test electrical circuits for faults which is cheaper to manufacture, easier to use, smaller and more durable.
Date:
August 17, 1920
Creator:
Bierbower, Richard C.
Object Type:
Patent
System:
The Portal to Texas History
Piston Ring
Patent for improvements to piston rings to reduce leakage through piston grooves, rings, and joints.
Date:
April 17, 1920
Creator:
Olsen, Jens J. & Edwards, Lewis E.
Object Type:
Patent
System:
The Portal to Texas History
Steering Attachment.
Patent for a steering attachment that keeps the steering wheels of a motor driven vehicle straight. This device is simple and relatively inexpensive, among other advantages.
Date:
May 17, 1921
Creator:
Huffman, Orla L.
Object Type:
Patent
System:
The Portal to Texas History
Rotary-Razor
Patent for rotary razors that includes a rotating blade that approaches and passes over the skin to avoid cuts or scrapes. The blade on the razor is tilted too far out to cause cuts and scrapes, yet it provides a sufficient shave.
Date:
August 17, 1920
Creator:
Jones, Sidney P.
Object Type:
Patent
System:
The Portal to Texas History
Slime-Pulp Thickener.
Patent for a machine used in the wet milling process. It allows proportionate distribution of liquids to aide during the thickening process.
Date:
April 17, 1923
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Shovel-Plow.
Patent for the improvement of the shovel plow. The improvement of the shovel plow allows for the adjustment of the plow height as needed.
Date:
February 17, 1920
Creator:
Urban, John
Object Type:
Patent
System:
The Portal to Texas History
Rail-Joint.
Patent for the improvement of existing rail joints by creating a tie or bond at the end of rails to allow them to lock together. The improved rail joint will make the use of bolts and nuts, or other connectors unnecessary when connecting rails.
Date:
February 17, 1920
Creator:
Ryan, William M.
Object Type:
Patent
System:
The Portal to Texas History
Railroad-Crossing Signal
Patent for signaling devices designed for use along railroads and grade crossings and meant to be automatically operated upon the approach of a train by giving a visible or audible signal at the crossing which will warn travelers of the approach of the train and calcuated to avoid the occurrence of accidents. The signal device includes a track associated train operated circuit closing device for energizing a bell, flashing light, or signal arm or any other equivalence or suitable signal device located at the crossing.
Date:
October 17, 1922
Creator:
Hamilton, Morgan Smith & Brady, Charles Pettus
Object Type:
Patent
System:
The Portal to Texas History
Rail-Joint.
Patent for improving railway rail joints "without the use of fish plates or clamping bolts" (lines 12-13) and for quick and secure assembly "by any person without previous skill or knowledge" (lines 24-25).
Date:
August 17, 1920
Creator:
Fenske, Paul J.
Object Type:
Patent
System:
The Portal to Texas History
Heating Apparatus.
Patent for a heating apparatus that heats and dries sand or other abrasive materials. A furnace or heating member is attached to a receptacle, which heats and dries the materials. Materials are drawn out via a suction pipe.
Date:
August 17, 1920
Creator:
Cleveland, David P.
Object Type:
Patent
System:
The Portal to Texas History
Railroad-Signal
Patent for a railroad signal which will prevent train collisions at railway crossings, with illustrations.
Date:
February 17, 1920
Creator:
Humphrys, Sidney E.
Object Type:
Patent
System:
The Portal to Texas History
Pipe Coupling.
Patent for pipe coupling in which the ends of pipes have interlocking attachments which can be both dissembled and reinforced for protection against accidental disengagement.
Date:
August 17, 1920
Creator:
McCullar, Willie A. & Ayraud, Jules J.
Object Type:
Patent
System:
The Portal to Texas History