AKA Vulcan Works or Vulcan Iron Works.

The Vulcan Works were founded before 1850. By 1861-1863, the firm became Thwaites and Carbutt as a partnership between Edward Hamer Carbutt and Robinson Thwaites, to manufacture the Roots patent blower, Vulcan forges, smelting plants, cranes and hoists, pumps, gas engines, compressors and rolling mill engines. The first Steam Hammer was manufactured in 1876. In 1880 the firm reorganized as Thwaites Bros., Ltd., and the works were known as the Vulcan Iron Works.

Information Sources

• 1907-10-19 Canada (a journal promoting British-Canadian trade), page 48, in an article on exhibitors at the London Machinery Exhibition.

  Messrs Thwaites Bros., Ltd., Bradford, include among the exhibits a patented variable delivery three-throw electrically driven pump, a steam hammer of the double-frame type, and a horizontal air compressor, direct geared to electric motor, and complete with air receiver. There were also several Roots blowers, as manufactured by this firm, one of which was coupled to an engine, and another to an elecric motor. A corner of the stall was devoted to an exhibit of Clayton fire extinguishing and disinfecting machines, type "A," for use on board ship. These machine are also employed for dealing with infectious diseases.

• More history and machine information can be found at Grace’s Guide.
• See also, P. H. & F. M. Roots who were the American manufacturers of Root's patent blowers.