Smith & Sayre Mfg. Co

• Smith & Sayre Mfg. Co., sole manufacturers of the Mackenzie patent blower, patent cupola, and smelting furnace, patent gas exhauster and compensator
• The Mackenzie patent blower has no equal for a pressure blast, giving a definite quanitity of air without reference to the condition of cupola ...
• The Mackenzie patent cupola has made a great revolution in melting iron