Combination Key and Automatic Stop Cock
Description:
Patent for "new and improved Combination Key and Automatic Stop-Cock" (lines 6-7) for the purpose of providing "an automatic arrangement for cutting off the water-supply in hydrants and like appliances when the weather becomes so cold as to endanger the freezing of the water" (lines 11-14).
Date:
May 7, 1900
Creator:
Randall, Charles Thomas & Holden, Edward Gwynn
Partner:
UNT Libraries Government Documents Department