Combined Harrow and Roller (open access)

Combined Harrow and Roller

Patent for a combined harrow and roller for pulverizing and eliminating unwanted growth from the ground. Illustrations included.
Date: April 9, 1912
Creator: Younger, Walter E.
System: The Portal to Texas History
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
Wire-Winding Machine (open access)

Wire-Winding Machine

Patent for a wire winding machine for making well screens.
Date: August 20, 1912
Creator: Eastham, Albert Lindsay
System: The Portal to Texas History
Water-Wheel (open access)

Water-Wheel

Patent for a water wheel adapted for use in running machinery such as pumps. It uses a series of connected buckets mounted to turn on an axle, alternately charging the buckets with water.
Date: January 30, 1912
Creator: Verde, Giuliano
System: The Portal to Texas History
Utilizing Sulfur-Containing Petroleum. (open access)

Utilizing Sulfur-Containing Petroleum.

Patent for a method of removing sulfur from Beaumont petroleum and converting it into sulfuric acid.
Date: February 20, 1912
Creator: Robinson, Clarence I.
System: The Portal to Texas History
Journal-Box Oil-Cup (open access)

Journal-Box Oil-Cup

Patent for an oil cup for lubricating journal boxes. Illustrations included.
Date: September 24, 1912
Creator: Alexander, Colwell Hyman
System: The Portal to Texas History
Grain-Door for Cars (open access)

Grain-Door for Cars

Patent for a door for grain containers. Illustrations included.
Date: February 20, 1912
Creator: Miller, Rudolph Charles
System: The Portal to Texas History
Drilling-Machine (open access)

Drilling-Machine

Patent for a rotary drilling machine for drilling oil wells that has a stronger grip than previous drills.
Date: August 6, 1912
Creator: Black, Lee J.
System: The Portal to Texas History
Ice-Making Apparatus (open access)

Ice-Making Apparatus

Patent for an ice-making apparatus that both cools the brine and makes the ice.
Date: December 31, 1912
Creator: Bell, Samuel Robert
System: The Portal to Texas History
Roundabout Swing (open access)

Roundabout Swing

Patent for a roundabout swing. Illustrations included.
Date: November 12, 1912
Creator: Jones, Oliver P.
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
Rail-Joint (open access)

Rail-Joint

Patent for a rail joint that locks securely and will not sag.
Date: April 30, 1912
Creator: White, John
System: The Portal to Texas History
Plunger. (open access)

Plunger.

Patent for a plunger for use in pumps and air compressors that fits tightly into the cylinders of the machine.
Date: February 27, 1912
Creator: Ohmstede, August
System: The Portal to Texas History