Friction-Clutch (open access)

Friction-Clutch

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
System: The Portal to Texas History
Manufacture of Aluminum Chloride. (open access)

Manufacture of Aluminum Chloride.

Patent for the manufacture of Aluminum Chloride that can be carried out at lower temperatures with aluminum ore or compound, such as bauxite, sulfur and chlorine, and involves no cooking.
Date: July 11, 1922
Creator: Hall, Frank W.
System: The Portal to Texas History
Self-Lining Interlocking Building-Block. (open access)

Self-Lining Interlocking Building-Block.

Patent for interlocking building-blocks that allow for the formation of strong insulated and properly lined walls without the use of skilled labor and with or without reinforcements.
Date: July 12, 1921
Creator: Merren, John Jay
System: The Portal to Texas History
Motorcycle-Stand. (open access)

Motorcycle-Stand.

Patent for a motorcycle stand that can be released manually through a lever near the saddle to lock the stand into place until the operator unlocks it.
Date: July 21, 1921
Creator: Swenson, Carl J.
System: The Portal to Texas History
Valve. (open access)

Valve.

Patent for improvements to valves, specifically valves that have a sliding movement on the valve seat and to disk valves. The invention is to provide a valve of this type which is used in the interior of vats, tanks, or similar receptacles containing liquids.
Date: July 5, 1921
Creator: Spencer, Elmer H. & Block, A.C.
System: The Portal to Texas History
Electric-Current Relay (open access)

Electric-Current Relay

Patent for Electric-Current Relay to allow capability of use with either a direct or alternating current. This is adapted for economical use in constant temperature apparatus. Further, this technology avoids the possibility of "sticking of relay movable contacts".
Date: July 19, 1921
Creator: Lorenz, Charles O.
System: The Portal to Texas History
Wave Motor (open access)

Wave Motor

Patent for an improvement to wave motors, intended to use "the force of waves as motive power for operating machinery" (lines 9-10).
Date: July 11, 1911
Creator: Ford, William W.
System: The Portal to Texas History
Vapor Burner (open access)

Vapor Burner

Patent for a vapor burner. Illustration included.
Date: July 11, 1905
Creator: Todd, Clarence C.
System: The Portal to Texas History
Life-Preserver. (open access)

Life-Preserver.

Patent for life preserver worn on the human body and inflated with a valve attached to rubber tubes. Includes illustration.
Date: July 30, 1901
Creator: Graham, George
System: The Portal to Texas History
Hotel Office Dinkey (open access)

Hotel Office Dinkey

Patent for an hotel office dinkey. Illustration included.
Date: July 31, 1906
Creator: Browder, Henry Worden
System: The Portal to Texas History
Still for Distillation of Petroleum (open access)

Still for Distillation of Petroleum

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
System: The Portal to Texas History
Journal-Box (open access)

Journal-Box

Patent for a journal box that requires no disassembly to be replenished. Illustrations included.
Date: July 26, 1910
Creator: McFadden, John M.
System: The Portal to Texas History
Propelling or Power-Generating Mechanism. (open access)

Propelling or Power-Generating Mechanism.

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.
System: The Portal to Texas History
Oil-Tank. (open access)

Oil-Tank.

Patent for an oil tank that is fire proof and will not explode completely if it is struck by lightning.
Date: July 18, 1911
Creator: Price, James Bain
System: The Portal to Texas History
Splint (open access)

Splint

Patent for an improved splint.
Date: July 3, 1900
Creator: Hughes, James Gilbert
System: The Portal to Texas History
Manufacture of Aluminum Chlorid (open access)

Manufacture of Aluminum Chlorid

Patent for the manufacture of aluminum chlorid and the method of making aluminum chlorid to produce vapors that are subsequently condensed in any suitable manner. This patent is important because it is advantageous to work with a producer of gas made at as high a temperature. This is because of the greater amount of sensible heat it carries forward for use in the reaction.
Date: July 1, 1919
Creator: King, George H.
System: The Portal to Texas History
Process of and Apparatus for Making Halids (open access)

Process of and Apparatus for Making Halids

Patent for a new and improved process of and apparatus for making halides which transmit the necessary heat to the reaction mass by preheating the chlorine and not through the wall as in usual types of retorts.
Date: July 8, 1919
Creator: Abbott Lyle Stockton
System: The Portal to Texas History
Hoisting Drum. (open access)

Hoisting Drum.

Patent for an invention that "relates to improvements in hoisting drums" (line 15-16). Structure, objective, and illustrations of hoisting drums are included.
Date: July 3, 1917
Creator: Howard, Henry Fischer
System: The Portal to Texas History
Feed-Cooler (open access)

Feed-Cooler

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.
System: The Portal to Texas History
Railway-Switch (open access)

Railway-Switch

Patent for a railway switch. Illustrations included.
Date: July 9, 1907
Creator: Collier, William Reid
System: The Portal to Texas History
Elevator and Conveyer for Concrete-Mixers. (open access)

Elevator and Conveyer for Concrete-Mixers.

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
System: The Portal to Texas History
Roundabout (open access)

Roundabout

Patent for a roundabout ride with an improved method of turning the seats and the seat holder.
Date: July 23, 1912
Creator: Mayhew, Nathaniel L.
System: The Portal to Texas History
Saw-Hammering Machine. (open access)

Saw-Hammering Machine.

Patent for a simple hammering machine for circular saws that "carries the saw in such a way that it may be held at any necessary or desired angle to suit the operator, which has a sliding anvil adapted to be adjusted so as to come opposite the various parts of the saw, which is provided with an adjustable hammer adapted to be brought opposite the anvil, which is constructed so as to cause a blow to expand both sides of the saw equally, and which in general is intended to facilitate the quick and efficient hammering of a saw" (lines 12-23).
Date: July 18, 1893
Creator: Dillon, Thomas H.
System: The Portal to Texas History
Rice Harvester (open access)

Rice Harvester

Patent for an improved rice grain harvester. This harvester gather only grain, not straw or stalks, in order to prevent the grain from gathering dampness or moisture over long periods of time.
Date: July 11, 1916
Creator: Motte, James N. & Katz, Adam
System: The Portal to Texas History