Car Wheel and Axle. (open access)

Car Wheel and Axle.

Patent for a car wheel and axle made up of a built-up metallic wheel with dished side-plates that have flanged and riveted rims, hub-nuts, a lock-plate, hollow screw-threaded ends, hexagonal offsets, tubular journals, a tubular journal, and a radial lubricating feed-tube with a cross-head and a collar.
Date: May 14, 1895
Creator: Flatau, Louis Spencer
System: The Portal to Texas History
Air-Regulating Attachment. (open access)

Air-Regulating Attachment.

Patent for a new attachment in a carburetor that regulates air through suction and has a valve to release pressure from an engine, including illustrations.
Date: May 14, 1918
Creator: Kimbler, Henry R.
System: The Portal to Texas History
Tandem-Roller Attachment. (open access)

Tandem-Roller Attachment.

Patent for improved, simply constructed, and high-efficiency tandem roller attachments with the purpose of, "preventing surface waving of roadways," (lines 18-19) including illustrations.
Date: May 14, 1918
Creator: Brown, Frank O.
System: The Portal to Texas History
Draft-Equalizer (open access)

Draft-Equalizer

Patent for "a draft-equalizer that the draft will be equally distributed among each of the animals attached thereto, so that one may travel in the furrow, if desired, and the remainder permitted to move over the unplowed ground" (lines 22-27).
Date: May 14, 1901
Creator: Anderson, Samuel Cornelious
System: The Portal to Texas History