Adjustable End Die. (open access)

Adjustable End Die.

Patent for improvements to adjustable end dies. These improvements allow convenient rethreading of bolts while it is engaged with an object.
Date: February 8, 1921
Creator: Wright, John G.
System: The Portal to Texas History
Adjustable Flat Die. (open access)

Adjustable Flat Die.

Patent for improved adjustable flat dies which provide different sizes of cutting dies to the cutting device.
Date: May 10, 1921
Creator: Wright, John G.
System: The Portal to Texas History
Ink-Bottle (open access)

Ink-Bottle

Patent for an ink bottle with screw threads allowing it to be screwed and unscrewed into a holder or desk; ink bottle can also be removed for cleaning or filling.
Date: May 10, 1921
Creator: Kayser, Mary Louise
System: The Portal to Texas History
Building Construction. (open access)

Building Construction.

Patent for a building construction method. After completion of typical foundation and framework construction, "interlocking slabs or tiles are secured to the framework to form an outer covering or sheathing for the building." The interlocking method requires no cementing of material yet still allows water to be shed. "Provision is also made for fastening slabs or tiles to the framework in a manner permitting rapid assembly of parts" which reduces building time. The invention can be applied to doors and windows as demonstrated in the illustrations.
Date: November 8, 1921
Creator: Walker, Isham P.
System: The Portal to Texas History
Locomotive Driving-Box. (open access)

Locomotive Driving-Box.

Patent for improvements in locomotive driving boxes. Designed to "eliminate the necessity of removing the driving wheels" (lines 13-14) to replace the crown brasses, "eliminate the necessity of removing the driving box" (lines 16-17) to avoid lateral wear, and eliminates the necessity of expensive machine work.
Date: May 4, 1920
Creator: Simmons, Arthur, W.
System: The Portal to Texas History
Pump-Actuating Mechanism. (open access)

Pump-Actuating Mechanism.

Patent for improving measuring pumps "by providing a pump actuating means so constructed that a continuous movement of the crank in one direction will cause a reciprocation of the piston in both directions" (lines 29-33), with illustrations.
Date: April 19, 1921
Creator: Dean, Robert A.
System: The Portal to Texas History
Sod Cutting and Disintegrating Machine. (open access)

Sod Cutting and Disintegrating Machine.

Patent for a sod cutting and disintegrating machine that has a wheel-supported frame, inclined elevator, plow attached to the elevator, front truck, and disintegrating rollers.
Date: August 17, 1920
Creator: Thompson, Robert L.
System: The Portal to Texas History