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February 19, 1909
April 25, 1911
Country of Publication
My invention relates to automatic sprinklers in which a water nozzle is closed by a cap, normally held in position under pressure by a cap retaining device, containing a fusible member that allows the cap retaining device to collapse under pressure when .a pre-determined degree of heat has been reached, and it consists in the construction and arrangement of parts as hereinafter described and pointed out in the annexed claims.
-George I. Rockwood
George I. Rockwood, Worcester MA, automatic sprinkler, sprinkler, Rockwood
Industrial Engineering | Manufacturing
Rockwood, George I., "Automatic Sprinkler" (1911). WPI Patents Collection. 9.