Process of Treating Ores. (open access)

Process of Treating Ores.

Patent for "an improved method of reducing gold and silver ores and recovering their metals." (Lines 10-11) Includes instructions and illustrations.
Date: November 17, 1896
Creator: Barbour, Thomas P.
Object Type: Patent
System: The Portal to Texas History
Electrical Testing Device. (open access)

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 (open access)

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
Thill-Coupling. (open access)

Thill-Coupling.

Patent for improvements in thill-couplings by using a combination of forward extension arms, having each near its forward end, circular shoulders, adapted to engage the ends of the shaft-iron; the spring-catch for holding the lever arm in locking position and, for retracting arm when the catch is released. Illustration is included.
Date: March 17, 1891
Creator: Bryan, William L.
Object Type: Patent
System: The Portal to Texas History
Fire Box (open access)

Fire Box

Patent for a fire box. Illustration included.
Date: January 17, 1905
Creator: Butcher, George W.
Object Type: Patent
System: The Portal to Texas History
Attachment for Automobiles (open access)

Attachment for Automobiles

Patent for a spring motor attachment for automobiles.
Date: January 17, 1911
Creator: Carroll, Houston M.
Object Type: Patent
System: The Portal to Texas History
Lawn-Rocker. (open access)

Lawn-Rocker.

Patent for a lawn rocker improvement that provides swing and is durable and inexpensive.
Date: July 17, 1906
Creator: Coffy, Ida May
Object Type: Patent
System: The Portal to Texas History
Adjustable Split Lock-Nut or Union. (open access)

Adjustable Split Lock-Nut or Union.

Patent for an affordable and efficient coupling device for use "on valve rods of internal combustion engines, especially those used in automobiles and aeroplanes or on those motors or engines employing overhead valves and whereby the union or coupling may be readily and securely locked on a valve rod with sufficient resistance to withstand the strain of direct pressure" (lines 14-21).
Date: August 17, 1920
Creator: Dickinson, Harry E.
Object Type: Patent
System: The Portal to Texas History
Phonograph-Machine. (open access)

Phonograph-Machine.

Patent for a new phonograph machine with improvements of sound-box-transversing mechanisms and uniformity of movements, including illustrations.
Date: April 17, 1906
Creator: Dubinski, Benjamin.
Object Type: Patent
System: The Portal to Texas History
Economic Opportunities Development Corporation of San Antonio and Bexar County: Planning and Priorities (open access)

Economic Opportunities Development Corporation of San Antonio and Bexar County: Planning and Priorities

A report on the plans and priorities of the Economic Opportunities Development Corporation of San Antonio and Bexar County based on results from a community survey on October 30, 1970 as part of an application for the Office of Economic Opportunity Community Action Program.
Date: November 17, 1970
Creator: Economic Opportunities Development Corporation of San Antonio and Bexar County
Object Type: Report
System: The Portal to Texas History
Improvement in Sand-Conveyers. (open access)

Improvement in Sand-Conveyers.

Patent for a machine for "taking up and conveying sand into a suitable receptacle". Patent for breaking up sand and transferring it into a receptacle by means of circular cutters, conducting apron, inclined plate.
Date: July 17, 1877
Creator: Garcia, Rufino C.
Object Type: Patent
System: The Portal to Texas History
Gradometer. (open access)

Gradometer.

Patent for a gradometer "which will accurately indicate under the most varying and unstable conditions the inclination and declination at which any moving body is traveling" (lines 10-13). The gradometer is "particularly adapted for use on motor vehicles" (lines 15-16).
Date: May 17, 1921
Creator: Hall, Sidney Wilson
Object Type: Patent
System: The Portal to Texas History
Cage or Support for Well-Tubing (open access)

Cage or Support for Well-Tubing

Patent for a well tubing cage which provides support for well tubes so that a second pipe is not required. Illustrations included.
Date: January 17, 1911
Creator: Harpham, Harry C.
Object Type: Patent
System: The Portal to Texas History
Lock for Automobiles (open access)

Lock for Automobiles

Patent for Lock for Automobiles
Date: October 17, 1916
Creator: Harris, Robert M. & Wade, Milton V.
Object Type: Patent
System: The Portal to Texas History
Apparatus for Dispensing Oil, &c. (open access)

Apparatus for Dispensing Oil, &c.

Patent for a new and useful apparatus for dispensing oil, &c.
Date: May 17, 1898
Creator: Haye, August
Object Type: Patent
System: The Portal to Texas History
Baling-Press. (open access)

Baling-Press.

Patent for certain new and useful improvements in baling presses.
Date: May 17, 1898
Creator: Holmgreen, Julius H.
Object Type: Patent
System: The Portal to Texas History
Hoeing-Machine (open access)

Hoeing-Machine

Patent for improvements to hoeing machines "as will cause the hoes to cultivate around the particular plant pointed out without it being necessary for the indicator to remain at rest while each plant is being hoed; second, to provide a pair of oscillating disks that cultivate before and behind the plant as they oscillate across the row" (lines 15-21).
Date: June 17, 1890
Creator: Hurd, Judson B.
Object Type: Patent
System: The Portal to Texas History
Artificial Teeth. (open access)

Artificial Teeth.

Patent for the lower set of artificial teeth, "and aims to provide retainers and combine them with the plate, so as to hold the denture in place against accidental displacement during the process of articulation, prehension, mastication, and deglutition" (lines 10-15). This invention "provides retainers which fill a vacuum in the mouth never heretofore utilized in the construction of artificial teeth and which form a rest for the muscles in their contraction incident to the movements of the jaws, and these retainers render a lower set of artificial teeth s comfortable and serviceable as if they were natural" (lines 22-29).
Date: September 17, 1895
Creator: Johnston, George A. & Carroll, Houston M.
Object Type: Patent
System: The Portal to Texas History
Combination Tie and Rail-Joint (open access)

Combination Tie and Rail-Joint

Patent for improvement in the safety of tie and rail-joints. Improves the connection so that independent movement of the tie and rail is reduced.
Date: November 17, 1914
Creator: Knaus, John J.
Object Type: Patent
System: The Portal to Texas History
Ice Making and Blocking Machine. (open access)

Ice Making and Blocking Machine.

Patent for a new and improved ice machine. This design consists in "the combination of a non-conductive casing containing a freezing tank having water supply and discharge pipes, a water-tight diaphragm supported in said casing above the bottom of said tank having downwardly-tapered hollows in its upper surface and corresponding upwardly-tapered molds in its under surface, and a refrigerating medium contained within the said casing over said diaphragm and filling the hollows in the latter" (lines 82-91).
Date: May 17, 1887
Creator: Knox, George F.
Object Type: Patent
System: The Portal to Texas History
Door Controlled Electric Switch (open access)

Door Controlled Electric Switch

Patent for an improved switch attachment that will allow a room, vault, or compartment to be kept lighted when door is open or closed, but may also be shut off when leaving the room.
Date: October 17, 1916
Creator: Kreter, Otto
Object Type: Patent
System: The Portal to Texas History
Roller-Distributor. (open access)

Roller-Distributor.

Patent for the invention of a roller distributor, or roller cam, that can "provide novel means whereby friction will be reduced" (lines 12-13) through the use of "a novel spring means being employed" (lines 13-14) in certain affordable, widely used vehicles.
Date: August 17, 1920
Creator: Lopez, Bruno
Object Type: Patent
System: The Portal to Texas History
Separator for Secondary Batteries. (open access)

Separator for Secondary Batteries.

Patent for separators, made of celluloid or similar material, designed to separate secondary or storage batteries in an efficient and affordable way.
Date: February 17, 1920
Creator: Luthy, Josesph O.
Object Type: Patent
System: The Portal to Texas History
Aeroplane (open access)

Aeroplane

Patent for Aeroplane. This flying machine will automatically return to normal horizontal position if tilted.
Date: September 17, 1909
Creator: MacManus, Agustus, F.
Object Type: Patent
System: The Portal to Texas History