Wrench. (open access)

Wrench.

Patent for a new and improved wrench. This design "relates particularly to a combined pipe and nut wrench, and has for its object to provide a wrench of the class described which can be quickly changed to an ordinary wrench . . . [the] invention consists of a shank having a rigid jaw attached thereto, a movable jaw adjustable on the shank and an eccentrically-headed lever pivoted to the rear end of the movable jaw and bearing on the shank adapted to separate the rear end of the movable jaw and said shank to throw the forward end of the movable jaw closer to the rigid jaw" (lines 7-22).
Date: August 5, 1890
Creator: Hooks, George W.
System: The Portal to Texas History
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