Ox-Yoke Key. (open access)

Ox-Yoke Key.

Patent for an ox-yoke key that holds the bows in place. The key makes movement easy because of a swinging plate. "By this arrangement the plate may be swung so as to move the key away from the bow, and so as to move it toward the same; and in operation of advancing and retracting the key, the plate swings in the manner described abode" (lines 20-25).
Date: March 26, 1895
Creator: Johnson, Benjamin W.
System: The Portal to Texas History
Chain-Fastener. (open access)

Chain-Fastener.

Patent for a chain fastener for logging trucks, which can be easily unattached and works with most types of logging trucks.
Date: April 26, 1910
Creator: Biskamp, Richard A.
System: The Portal to Texas History