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Bat Roost (open access)

Bat Roost

Patent for a bat roost. Illustration included.
Date: March 1, 1910
Creator: Campbell, Charles A. R.
System: The Portal to Texas History
Bell-Ringer. (open access)

Bell-Ringer.

Patent for a bell ringer for use in locomotives, with instructions and illustrations.
Date: October 15, 1891
Creator: Baker, John L.
System: The Portal to Texas History
Apparatus for Aging Whisky. (open access)

Apparatus for Aging Whisky.

Patent for a barrel for heating and aging whiskey, which accelerates aging time. Includes instructions and illustrations.
Date: June 15, 1891
Creator: Halligan, John H.
System: The Portal to Texas History
Combination Wrench. (open access)

Combination Wrench.

Patent for a new and improved combination wrench. This design "is to provide a wrench whose moveable jaw is adjustable without a screw, and with whose handle are combined several useful tools or instruments" (lines 8-11).
Date: March 1, 1881
Creator: Butler, Edward Martin & Campbell, William Henry
System: The Portal to Texas History
Multi-stage slurry system used for grinding and polishing materials (open access)

Multi-stage slurry system used for grinding and polishing materials

A slurry system draws slurry from a slurry tank via one of several intake pipes, where each pipe has an intake opening at a different depth in the slurry. The slurry is returned to the slurry tank via a bypass pipe in order to continue the agitation of the slurry. The slurry is then diverted to a delivery pipe, which supplies slurry to a polisher. The flow of shiny in the bypass pipe is stopped in order for the slurry in the slurry tank to begin to settle. As the polishing continues, slurry is removed from shallower depths in order to pull finer grit from the slurry. When the polishing is complete, the flow in the delivery pipe is ceased. The flow of slurry in the bypass pipe is resumed to start agitating the slurry. In another embodiment, the multiple intake pipes are replaced by a single adjustable pipe. As the slurry is settling, the pipe is moved upward to remove the finer grit near the top of the slurry tank as the polishing process continues.
Date: March 1, 2000
Creator: Hed, P. Paul & Fuchs, Baruch A.
System: The UNT Digital Library
All-vapor processing of P-type tellurium-containing II-VI semiconductor and ohmic contacts thereof (open access)

All-vapor processing of P-type tellurium-containing II-VI semiconductor and ohmic contacts thereof

An all dry method for producing solar cells is provided comprising first heat-annealing a II-VI semiconductor; enhancing the conductivity and grain size of the annealed layer; modifying the surface and depositing a tellurium layer onto the enhanced layer; and then depositing copper onto the tellurium layer so as to produce a copper tellurium compound on the layer.
Date: March 1, 2000
Creator: McCandless, Brian E.
System: The UNT Digital Library
Automatic-Cut-Off (open access)

Automatic-Cut-Off

Patent for an automatic cut-off part for a steam inlet pipe.
Date: March 1, 1921
Creator: La Bauve, William H.
System: The Portal to Texas History
Cotton-Picker's Sack. (open access)

Cotton-Picker's Sack.

Patent for improvements to Cotton-Picker's Sacks "to permit the bag or sack to be opened longitudinally to permit quick and convenient emptying of the contents thereof" (lines 12-15).
Date: March 1, 1921
Creator: White, Benjoman Henry
System: The Portal to Texas History
Window-Sash Gearing and Lock (open access)

Window-Sash Gearing and Lock

Patent for a window sash mechanism that allows the upper and lower portions of a window to be adjusted and locked independently of each other.
Date: March 1, 1921
Creator: Peaden, William H.
System: The Portal to Texas History
Well-Drilling Device. (open access)

Well-Drilling Device.

Patent for well drilling device with new and useful improvements in well-drilling device for simultaneously drilling the main hole and an advance or "rat-tail" hole.
Date: March 1, 1921
Creator: Smith, Primus W. & Bookhout, John J.
System: The Portal to Texas History
Pump and Sprinkler. (open access)

Pump and Sprinkler.

Patent for a new and improved pump and sprinkler. This design "consists of a portable force-pump provided with a capricious air-chamber, and having on the end of its discharge-pipe a sprinkler of novel form, which causes the liquid to be ejected in a fine spray. . . . [This] provide[s] a simple, durable, and effective device, designed especially for use in sprinkling cotton-plants with poisonous solutions, to protect them against the ravages of injurious insects and worms" (lines 7-17).
Date: March 1, 1881
Creator: Polansky, Alois Josef
System: The Portal to Texas History
Speed-Gearing. (open access)

Speed-Gearing.

Patent for improvements in “gearing mechanism in which the speed or rotation of a drum or wheel is greatly increased through the intervention of gearing-wheels mounted upon a single shaft.” (Lines 11-14) Illustration is included.
Date: March 1, 1898
Creator: Scofield, John R.
System: The Portal to Texas History
Hydraulic Air-Compressor. (open access)

Hydraulic Air-Compressor.

Patent for an improved hydraulic air compressor: "The principal object of my invention is to provide the cylinder with a pressure and water regulating device" (lines 7-9).
Date: March 1, 1881
Creator: Freeman, William R.
System: The Portal to Texas History
Printing-Roller-Cleaning Device. (open access)

Printing-Roller-Cleaning Device.

Patent for a cleaning device designed to expedite the cleaning of printing press rollers.
Date: March 1, 1917
Creator: Farr, Charles A. & Dove, Bascom A.
System: The Portal to Texas History
Improvement in Seed-Planters. (open access)

Improvement in Seed-Planters.

Patent for a seed-planter that "may be attached to the leg of the attendant and operated by the natural movement of the attendant while walking along behind the machine" (lines 20-23), including illustration.
Date: March 1, 1859
Creator: Benthall, J. C.
System: The Portal to Texas History
Improvement in Revolving Fire-Arms. (open access)

Improvement in Revolving Fire-Arms.

Patent for discharging buckshot without reloading and with the precision of firing "a single bullet fired from a barrel of proper bore to fit it" (lines 17-18), including illustrations.
Date: March 1, 1859
Creator: Haynes, William C.
System: The Portal to Texas History
Paint and Varnish Removing Process. (open access)

Paint and Varnish Removing Process.

Patent for improvements to the removal process for paint and varnish. An invention of a solution that will cause finished coatings to be removed with less expense, less time, and no specifically skilled labor requirement to meet.
Date: November 18, 1919
Creator: Cleveland, David P.
System: The Portal to Texas History
Nut Lock. (open access)

Nut Lock.

Patent for a new and improved nut lock. This design calls for a grooved nut and bolt to hold a pin between the two while the bolt is screwed onto the nut. Depending on whether or not the pin is in said grooves, the nut may or may not be removed from the bolt, which increases the worker's control over the nut and bolt and prevents unintended loosening.
Date: March 1, 1881
Creator: Bunker, John Williamson
System: The Portal to Texas History
Portable Forge (open access)

Portable Forge

Patent for a portable forge adapted for use in oil well drilling. Used to create a compact form of a forge for easy breakdown and storage, while also making it easier to transport.
Date: March 1, 1921
Creator: Wright, Samuel E.
System: The Portal to Texas History
Grass-Burning Device. (open access)

Grass-Burning Device.

Patent for improvements in grass burning devices in which “the grass may be safely burned on the prairies and the fire kept from spreading.” (Lines 16-18) Illustration is included.
Date: March 1, 1898
Creator: Slaughter, George M. & Christian, Fred
System: The Portal to Texas History
Gin Saw Gummer. (open access)

Gin Saw Gummer.

Patent for a new and improved gin saw gummer. This design "consists in constructing a gin-saw gummer of a base-block, having a slot to receive the saw, and carrying the dics or stationary cutters, the guide-bar and shoe, the weight-bar, the pivoted bar, carrying the cutter and the gage, the lever and cam for operating the cutter-bar, and the feed mechanism" (lines 23-29).
Date: March 1, 1881
Creator: Clopton, John Benjamin
System: The Portal to Texas History
Thill Coupling. (open access)

Thill Coupling.

Patent for a new and improved coupling for thills. This design consists in "[t]he combination, with the clip having the ears provided with the openings of the draft-iron having the eye at its inner end adapted to be inserted between the ears of the clip and having the transverse central opening" (lines 94-98). Further, it has "the coupling-bolt having the inclined shoulder and the nut provided with the [other] inclined shoulder and the sleeves having the inclined inner ends adapted to enter the inclines of the draft-iron and provided at their outer ends with the inclined recesses" (lines 1-7).
Date: March 1, 1887
Creator: Findley, James W.
System: The Portal to Texas History
Swing (open access)

Swing

Patent for swing that accommodates both seated and reclining positions.
Date: March 1, 1921
Creator: Nelson, Carl N.
System: The Portal to Texas History
Washing-Machine. (open access)

Washing-Machine.

Patent for improvements to the washing machine "which shall enable the washing of clothes or garments to be effected with but little exertion to the operator and with but comparatively little wear to the garments themselves." (Lines 19-23). Includes instructions and illustrations.
Date: May 2, 1891
Creator: Smith, Robert H.
System: The Portal to Texas History