Apparatus for Treating Granular Materials (open access)

Apparatus for Treating Granular Materials

Patent for an apparatus for treating granular materials. Illustrations included.
Date: October 29, 1912
Creator: Lanaux, Alfred A.
System: The Portal to Texas History
Air-Craft Propeller (open access)

Air-Craft Propeller

Patent for an air craft propeller that reduces air resistance.
Date: October 8, 1912
Creator: Koiw, Julius
System: The Portal to Texas History
Change-Speed Mechanism for Tractor-Truck Motor-Vehicles (open access)

Change-Speed Mechanism for Tractor-Truck Motor-Vehicles

Patent for a machine that can be used either as a truck for traveling over highways or as a tractor for farm work.
Date: October 28, 1919
Creator: Miller, William J.
System: The Portal to Texas History
Wrench. (open access)

Wrench.

Patent for wrench related device "for locking the gripping element after it is applied to the pipe or other pipe (lines 14-15)" including instructions and illustration.
Date: October 19, 1915
Creator: Black, Lee J.
System: The Portal to Texas History
Variable-Speed-Transmission Gearing. (open access)

Variable-Speed-Transmission Gearing.

Patent for an improved transmission gearing that provides "variable speed transmission gearing" (line 10) which allows for different forward and reverse speeds, including illustrations. The variable speed transmission gearing is designed primarily for automobiles and motor vehicles.
Date: October 5, 1915
Creator: Maschek, Henry
System: The Portal to Texas History
Improvements in Apparatus for Concentrating Acid (open access)

Improvements in Apparatus for Concentrating Acid

Patent for an apparatus for concentrating acid. This apparatus relates to concentrating weak acid taken from petroleum sludge.
Date: October 10, 1911
Creator: Gray, Elisha Burritt
System: The Portal to Texas History
Steam-Feed. (open access)

Steam-Feed.

Patent for an improved steam feed for use in sawmill carriage feeds.
Date: October 3, 1911
Creator: Black, Lee J.
System: The Portal to Texas History
Pump (open access)

Pump

Patent for pump that has "a valve chest which is formed of a single casting removably mounted on the pump cylinder, and carrying all the valves of the pump."
Date: October 24, 1916
Creator: Black, Lee J.
System: The Portal to Texas History
Planter Attachment to Plows (open access)

Planter Attachment to Plows

Patent for a planter attachment that will drop the desired seed while plowing, and can be controlled by the operator.
Date: October 31, 1916
Creator: Kern, Harry L. & Gerhold, Walter
System: The Portal to Texas History
Process of Distilling Oil (open access)

Process of Distilling Oil

Patent for a new and improved process of distilling oil by inventor James E. Biggins.
Date: October 23, 1917
Creator: Biggins, James E.
System: The Portal to Texas History
Tire Structure (open access)

Tire Structure

Patent for a tire structure that eliminates circumferential differences and also renders a simpler, less expensive model for tire construction.
Date: October 7, 1919
Creator: Smith, Jesse G.
System: The Portal to Texas History
Reclining Rocking-Chair. (open access)

Reclining Rocking-Chair.

Patent for a reclining rocking chair, which can be rocked while upright or reclined.
Date: October 4, 1910
Creator: Swindler, Edgar L.
System: The Portal to Texas History
Boring Tool (open access)

Boring Tool

Patent for a boring tool that allows for easy interchanging of the drill.
Date: October 31, 1916
Creator: Carroll, Monroe W.
System: The Portal to Texas History
Roof Structure. (open access)

Roof Structure.

Patent for an improved roof structure that has "movable panels in the roof and side walls... to permit of manual adjustment to regulate the temperature, light, and moisture" (lines 10-14). This patent includes instructions and illustrations.
Date: October 29, 1918
Creator: Simon, Jacob P.
System: The Portal to Texas History