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Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
automatic sprinkler systems for fire protection, and parts thereof-namely, adapters, alarm valves, automatic releases, air tubings, ball drips, ceiling plates, fire extinguishing sprinklers, check valves, compression couplings, compression fittings, conduit fittings, compensating vents, dry pipe valves, drum drips, deluge valves, drip cups, automatic air-releasing valves, expansion joints, fuse links, floor plates, floor sleeves, hydraulic valves, hose housings, hose valves, hydrants, manual pulls, mercury air checks, outside alarm covers, pipe hangers, pipe hanger inserts, pipe supports, metal pipe fittings, post indicator valves, retarding chambers, roller fittings, sight drains, steamer connections, steamer connection caps, valves, metal direction plates, valve housings, valve dummies, and wall plates