Wire-Tightener. (open access)

Wire-Tightener.

Patent for improvements in wire-tighteners with an illustration. Specifically, the patented improvement is for a "device" that can "be used for the purpose of tightening strands of wire of a wire fence" (lines 11-14).
Date: June 24, 1919
Creator: Wilson, James G.
System: The Portal to Texas History
Telegraph-Repeater (open access)

Telegraph-Repeater

Patent for a telegraph repeater. This invention improves repeaters by eliminating lag by simplifying the apparatus which increases capacity and clarity in transmission by maintaining a larger current strength.
Date: June 24, 1919
Creator: McKibben, Charles W.
System: The Portal to Texas History