Knee and Head Block for Saw Mills. (open access)

Knee and Head Block for Saw Mills.

Patent for a new and improved knee and head block. This design consists, "with a saw-mill carriage, of a head-block extending flush with the outer edges of the tracks of said carriage and provided with the usual groove or recess extending the entire length of said head-block, a knee sliding in said groove and provided on its front vertical edge with a recess, and a log-supporter fitting flush within said recess and provided at its lower end with a forwardly-extending lug or projection" (lines 39-48).
Date: April 29, 1890
Creator: Willis, George F.
System: The Portal to Texas History
Water-Heater. (open access)

Water-Heater.

Patent for a water heater for use in creating steam for oil and gas boilers, which heats faster than previous models.
Date: April 5, 1910
Creator: Hardie, Jeffie Watkins
System: The Portal to Texas History
Pump-Jack (open access)

Pump-Jack

Patent for a pump jack for operating the oil well pump rods.
Date: April 23, 1912
Creator: Seybert, Guy W.
System: The Portal to Texas History