Car-Door (open access)

Car-Door

Patent for a car door. Illustrations included.
Date: February 22, 1910
Creator: Pearce, Joseph E.
System: The Portal to Texas History
Apparatus For Forcing Fluid From Wells. (open access)

Apparatus For Forcing Fluid From Wells.

Patent for a narrow device to use fluid dynamics to remove certain fluids without loss of others. The apparatus is let down the well until one end is submerged before pressurized with air to seperate fluids and bring oil up to the surface of the well.
Date: February 22, 1921
Creator: Bodungen, Charles G.
System: The Portal to Texas History
Piston for Deep Well Pumps (open access)

Piston for Deep Well Pumps

Patent for the development of a new and improved deep well pump used for the pumping of oil.
Date: February 22, 1921
Creator: Humason, Granville A.; Bashara, Sam F. & Barraco, Paul J.
System: The Portal to Texas History
Strain Jacket for Telephone Poles (open access)

Strain Jacket for Telephone Poles

Patent for a new and useful improvement in strain jackets for telephone poles.
Date: February 22, 1921
Creator: McKnight, William M.
System: The Portal to Texas History
Resilient Wheel (open access)

Resilient Wheel

Patent for Resilient Wheel.
Date: February 22, 1916
Creator: Kettler, Martin F.
System: The Portal to Texas History
Railroad Motor-Car (open access)

Railroad Motor-Car

Patent for railroad motor-car. The invention is "constructed that they can be knocked down to be loaded on passenger trains" (lines 11-13). Illustrations included.
Date: February 22, 1910
Creator: Reynolds, Stephen D.
System: The Portal to Texas History