War and Post-War Boom 1941-1963

Aircraft Propellers 1942 1942: As part of the war effort, A. O. Smith begins producing bomb casings, aircraft propellers and landing gear, torpedo air flasks, and other material.

Bomb 19451945: A. O. Smith had built 4.5 million bombs, 16,750 sets of landing gear, and 46,700 propeller blades, as well as nose frames for the B-25 bomber, water heaters for military barracks, jeep frames, and components for the atomic bomb project by 1945. 
Burkay 1948 Thumbnail1948: A. O. Smith acquires the Burkay Company of Toledo, Ohio, and enters the market for coil-type “instantaneous” commercial water heaters. Five years later, the company introduces the first glass-lined commercial water heater
Harvestore 1949 1949: Introduces the Harvestore structure, a glass-fused-to-steel silo targeted at dairy and livestock operations. Over the next 50 years, A. O. Smith installs more than 70,000 structures on farms throughout the world. 
Whirl A Way 1950 Thumbnail1950: A. O. Smith acquires Whirl-A-Way Motors of Dayton, Ohio, and consolidates its electric motor manufacturing operations. 
Glass Lined Water Heater Tank 1954 1953: Glascote Products, Inc becomes a subsidiary of A. O. Smith, expanding its vessel manufacturing capabilities. The acquisition, combined with its existing water heater, brewery tank, and related businesses make A. O. Smith the world’s largest manufacturer of glass-coated steel products. 
Burkay Water Heater B-65 19541954: Water heater division introduces the first glass-lined commercial water heater, the A. O. Smith Burkay B-65. 
   1961 Stratford  1961: A. O. Smith-International opens a commercial water heater and boiler plant in Stratford, Ontario, Canada, its first water heater plant outside the U. S.