Resource Type

Acetylene-Gas Generator. (open access)

Acetylene-Gas Generator.

Patent for an acetylene gas generator, which is chiefly operated by the fall of a gas-bell.
Date: July 29, 1902
Creator: Ray, Samuel W.
System: The Portal to Texas History
Automatic Plow-Foot. (open access)

Automatic Plow-Foot.

Patent for an improved plow foot that allows for the easy installation or removal of the plow foot, secured connection of the plow foot, and improved regulation of the angle of the plow foot.
Date: July 29, 1913
Creator: Dugger, Thomas M.
System: The Portal to Texas History
Beam-Spring Trip for Cultivators, Plows, &c. (open access)

Beam-Spring Trip for Cultivators, Plows, &c.

Patent for the improvement of "the construction of spring trips, and to provide a simple and inexpensive spring trip, capable of being constructed of sufficient strength to enable it to be employed on stirring and breaking plows as well as cultivators, planters and the lighter class of agricultural implements" (lines 12-18) including instructions and illustrations.
Date: July 29, 1913
Creator: Alsup, Thomas B.
System: The Portal to Texas History
Check-Valve (open access)

Check-Valve

Patent for improved check values in relation to a boiler of locomotives, to better secure priming and increase forcing power of its injector.
Date: July 29, 1919
Creator: Deinert, Hans Gustav Joachim
System: The Portal to Texas History
Cotton-Baling Press. (open access)

Cotton-Baling Press.

Patent for "an improved construction of hydraulic baling-presses, whereby it is designed to provide simple and more durable and reliable presses of this kind than any now in use" (lines 8-12).
Date: July 29, 1884
Creator: Baumgarten, Christian
System: The Portal to Texas History
Cotton-Chopper. (open access)

Cotton-Chopper.

Patent for a combined cotton-chopper and cultivator.
Date: July 29, 1902
Creator: Forister, John H. & McAda, James N.
System: The Portal to Texas History
Cotton Seed Planter. (open access)

Cotton Seed Planter.

Patent for a new and improved planter. This design "consists in, first, a hopper having its rear side or board extended downward so as to form the standard or furrow-opener; second, the combination of two endwise adjustable castings provided with shoulders or offsets, and which are made adjustable in relation to each other, and by means of which the quantity dropped is regulated . . . [An object] of [the] invention [is] to extend the rear side of the seed-box downward, so as to form a furrow-opener or standard, to attach the combined seed-box and standard to the two iron beams" (lines 13-28).
Date: July 29, 1890
Creator: Kennedy, David
System: The Portal to Texas History
Coupling for Connecting Handles to Tools (open access)

Coupling for Connecting Handles to Tools

Patent for "new and useful Improvements in Couplings for Connecting Handles to Tools" (lines 5-7) with description and illustration.
Date: July 29, 1902
Creator: Suttle, Willis A.
System: The Portal to Texas History
Cover for Pass-Books (open access)

Cover for Pass-Books

Patent for a cover for a passbook with a transparent cover to view the book.
Date: July 29, 1912
Creator: Exline, Marcus Page
System: The Portal to Texas History
Device for Unscrewing and Withdrawing Pipe. (open access)

Device for Unscrewing and Withdrawing Pipe.

Patent for a device for unscrewing and withdrawing pipe from wells, mines, or other similar uses. This tool is attached at the end of a drill stem and threaded in the ordinary right hand direction to unscrew and withdraw.
Date: July 29, 1919
Creator: Fletcher, Harold W.
System: The Portal to Texas History
Electrochemical cell and negative electrode therefor. [Li-Al anode] (open access)

Electrochemical cell and negative electrode therefor. [Li-Al anode]

A secondary electrochemical cell is described with the positive and negative electrodes separated by a molten salt electrolyte with the negative electrode comprising a particulate mixture of lithium-aluminum alloy and electrolyte and an additive selected from graphitized carbon, Raney iron or mixtures thereof. The lithium-aluminum alloy is present in the range of from about 45 to about 80% by volume of the negative electrode, and the electrolyte is present in an amount not less than about 10% by volume of the negative electrode. The additive of graphitized carbon is present in the range of from about 1 to about 10% by volume of the negative electrode, and the Raney iron additive is present in the range of from about 3 to about 10% by volume of the negative electrode.
Date: July 29, 1981
Creator: Kaun, T.D.
System: The UNT Digital Library
End Gate Fastener (open access)

End Gate Fastener

Patent for a new End-Gate Fastener, accompanied by several illustrations of form and function. Specific claims to the End-Gate Fastener include: transverse rods designed to mount device for easy removable and replacement of device on wagons, transverse rods designed for sliding to connect rods inside a wagon or door, associated rods which can be used to restrict outward movement of rods in the fastener when placed under tensions, and the combination of the wagon body with the end gate once the fastener as been installed.
Date: July 29, 1915
Creator: Nichols, George Thomas
System: The Portal to Texas History
Fire-Extinguishing Apparatus (open access)

Fire-Extinguishing Apparatus

Patent for "a more simple, efficient, and convenient arrangement than has hitherto been known" for fire extinguishers (lines 16-17).
Date: July 29, 1890
Creator: Stamps, William Oscar
System: The Portal to Texas History
Flour-Separator (open access)

Flour-Separator

Patent for "a machine of this class by means of which by a single operation the flour may be separated from the middlings and the tine from the coarser grade of middling-s, thus performing at a single operation that which heretofore has required two separate operations to accomplish" (lines 10-16).
Date: July 29, 1890
Creator: Sadravezt, Peter
System: The Portal to Texas History
Frequency spectrum analyzer with phase-lock (open access)

Frequency spectrum analyzer with phase-lock

A frequency-spectrum analyzer with phase-lock for analyzing the frequency and amplitude of an input signal is comprised of a voltage controlled oscillator (VCO) which is driven by a ramp generator, and a phase error detector circuit. The phase error detector circuit measures the difference in phase between the VCO and the input signal, and drives the VCO locking it in phase momentarily with the input signal. The input signal and the output of the VCO are fed into a correlator which transfers the input signal to a frequency domain, while providing an accurate absolute amplitude measurement of each frequency component of the input signal.
Date: July 29, 1981
Creator: Boland, Thomas J.
System: The UNT Digital Library
Improvement in Cotton-Plows. (open access)

Improvement in Cotton-Plows.

Patent for improvements in plows with removable curved flanges.
Date: July 29, 1873
Creator: Sims, Zachariah B.
System: The Portal to Texas History
Improvement in Cotton-Presses. (open access)

Improvement in Cotton-Presses.

Patent for an improvement to cotton presses, including an illustration.
Date: July 29, 1879
Creator: Lively, Mark C.
System: The Portal to Texas History
Improvement in Farm-Fences. (open access)

Improvement in Farm-Fences.

Patent for a new and useful improvement in fence including instructions and illustrations.
Date: July 29, 1873
Creator: McKenzie, Winfield S.
System: The Portal to Texas History
Improvement in Feed Mechanisms for Running Saw-Mills. (open access)

Improvement in Feed Mechanisms for Running Saw-Mills.

Patent for improvement to feed mechanisms in running saw-mills, including illustrations.
Date: July 29, 1879
Creator: Fisher, Charles N.
System: The Portal to Texas History
Ink-Well. (open access)

Ink-Well.

Patent for an ink well that can be closed with a non-sticking closure when not in use to avoid "evaporation of the ink" (lines 14-15) and includes illustrations.
Date: July 29, 1913
Creator: Eddins, John A.
System: The Portal to Texas History
Insect or Worm Destroyer. (open access)

Insect or Worm Destroyer.

Patent for an insect and worm destroyer that is secured to the frame of a gang or cultivator and both cultivates and exterminates insects, worms, and the like as it moves down each row of plants.
Date: July 29, 1913
Creator: Martin, Samuel H.
System: The Portal to Texas History
Internal Combustion Engine. (open access)

Internal Combustion Engine.

Patent for a simplified internal combustion engine that is lighter and more efficient than previous models. It also features detachable and removable parts that will decrease time and cost of repairs, includes illustrations.
Date: July 29, 1919
Creator: Higbee, Charlie D.
System: The Portal to Texas History
Laminated Fabric for Tire-Casings. (open access)

Laminated Fabric for Tire-Casings.

Patent for a laminated fabric for tire casings that reinforces motor vehicle tires to reduce heat exposure and risk of damage. This type of laminated fabric is intended to resist wear and prevent tire blow-outs.
Date: July 29, 1919
Creator: Doolin, Charles B.
System: The Portal to Texas History
Liquid-Indicator for Tanks. (open access)

Liquid-Indicator for Tanks.

Patent for a liquid indicator to determine if the supply of oil has been depleted in the crank case of an automobile's internal combustion engine. Further purposes of this patent include the closing of an electrical circuit when the oil in the crank case becomes low in order to sound an audible noise that alerts the driver that more oil is needed. The patent intends to make the invention durable, easy to use, and inexpensive to manufacture.
Date: July 29, 1919
Creator: Pippin, William R.
System: The Portal to Texas History