Axle (open access)

Axle

Patent for an axle. Illustration included.
Date: January 29, 1907
Creator: Price, George T. & Knight, Richard
System: The Portal to Texas History
Improvement in Feed Mechanisms for Running Saw-Mills. (open access)

Improvement in Feed Mechanisms for Running Saw-Mills.

Patent for improvement to feed mechanisms in running saw-mills, including illustrations.
Date: July 29, 1879
Creator: Fisher, Charles N.
System: The Portal to Texas History
Hot Box Cooler and Oiler (open access)

Hot Box Cooler and Oiler

Patent for a hot box cooler and oiler. This device is for cooling and lubricating journal boxes of railway cars. Illustration included.
Date: September 29, 1908
Creator: Barnes, Ned Eastman
System: The Portal to Texas History
Self-Cleaning Harrow and Cultivator. (open access)

Self-Cleaning Harrow and Cultivator.

Patent for a harrow and cultivator "which is self-cleaning in that, by manipulation of certain mechanism embodied in the machine, the teeth or shovels are caused to rotate about axes, giving up any stalks, grass, or other fibrous matter which may cling to the teeth or shovels impeding the working of the soil" (lines 15-21).
Date: January 29, 1918
Creator: Miner, John C.
System: The Portal to Texas History