Bushing Extractor and Inserter (open access)

Bushing Extractor and Inserter

Patent for the creation of a manner in the method of bushing extractors and inserters.
Date: February 22, 1921
Creator: Renfro, Leonardo E.
Object Type: Patent
System: The Portal to Texas History
Advertising-Machine. (open access)

Advertising-Machine.

Patent for a machine that displays advertisements in a rotation.
Date: February 19, 1918
Creator: Barnett, John B.
Object Type: Patent
System: The Portal to Texas History
Balancing Pump Jack (open access)

Balancing Pump Jack

Patent for increasing the power of pump jacks and providing simple devices for aiding the driving mechanism. A shifting weight helps balance the sucker rod.
Date: February 4, 1919
Creator: Dayton, W.L.
Object Type: Patent
System: The Portal to Texas History
Well Drilling Machine. (open access)

Well Drilling Machine.

Patent for a driving mechanism to reduce the numbers of shafts and other parts needed for well drilling. The invention allows for one main driving shaft to be used as the primary source for well drilling.
Date: February 5, 1918
Creator: Herdman, Adam H.
Object Type: Patent
System: The Portal to Texas History
Tractor Turning Mechanism. (open access)

Tractor Turning Mechanism.

Patent for a tractor turning mechanism that will allow tractors to turn at any angle up to a right angle by locking one of the driving ground wheels into a pivot point for the other wheels of the tractor.
Date: February 17, 1920
Creator: Chenoweth, William B.
Object Type: Patent
System: The Portal to Texas History
Hydrocarbon-Burner. (open access)

Hydrocarbon-Burner.

Patent for "new and useful improvements in Hydrocarbon-Burners" (lines 6-7) including instructions and illustrations.
Date: February 10, 1920
Creator: Wynne, William P. & Wynne, James Harry
Object Type: Patent
System: The Portal to Texas History
Motor Limbering Stand (open access)

Motor Limbering Stand

Patent for a motor limbering stand. To provide an apparatus for starting and testing motors.
Date: February 19, 1918
Creator: Hill, James H.
Object Type: Patent
System: The Portal to Texas History
Hair-Wave Former. (open access)

Hair-Wave Former.

Patent for an improved hair-wave former device so "hair may be waved or coiled by a harmless method without heating the air and without rolling the hair with paper" (lines 12-15), including illustrations.
Date: February 28, 1922
Creator: Thompson, Mary E.
Object Type: Patent
System: The Portal to Texas History
Even-Balance Pump-Jack (open access)

Even-Balance Pump-Jack

Patent for "increasing the power of the pump jacks" (lines 10-11) for improved uniformity during the upstroke and the downstroke.
Date: February 4, 1919
Creator: Dayton, William L.
Object Type: Patent
System: The Portal to Texas History
Gas Producer (open access)

Gas Producer

Patent for a new and more efficient type of gas producer.
Date: February 25, 1919
Creator: Modlin, Frank E.
Object Type: Patent
System: The Portal to Texas History