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Silcock (and sillcock), same as "spigot", referring to a "cock" (as in stopcock and petcock) that penetrates a foundation sill. Bib ( bibcock , and hose bib or hosebibb ), usually a freeze-resistant version of a "spigot".
The 12-inch coast defense mortar was a weapon of 12-inch (305 mm) caliber emplaced during the 1890s and early 20th century to defend US harbors from seaborne attack. [note 1] In 1886, when the Endicott Board set forth its initial plan for upgrading the coast defenses of the United States, it relied primarily on mortars, not guns, to defend American harbors.
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Spigots or sillcocks have male hose connectors only, and the mating end of a hose has a captive nut which fits the threads there. The thread standard for garden hose connectors in the United States, its territories, and Canada is known colloquially as "garden hose thread" (GHT), but its official designation is NH ("National Hose"):
12-inch mortar may refer to: 12-inch coast defense mortar , a mortar used by the Coast Artillery Corps of the United States Army 1885–1945. Mortier de 12 Gribeauval , a mortar used by the French Army from 1780 to the mid-19th century.
It was armed with 14 of a slightly later version of Elswick's 12-inch 45-calibre guns. The battleship was completed as HMS Agincourt and served in the Royal Navy in World War I, with its guns designated BL 12 inch Mk XIII. [i] The gun's performance was similar to the standard Royal Navy equivalent gun, the BL 12 inch Mk X designed by Vickers.