Bernard Lauth
BornAugust 23, 1820
DiedJune 25, 1894 (1894-06-26) (aged 73)
Known forcold rolling
SpouseElizabeth Wilhelm
Parent(s)Bernard Lauth and Catharina Barbara Dauenhauer
RelativesWilliam Laud

Bernard Lauth (August 23, 1820 in Alsace, France[1] – June 25, 1894) founded the American Iron Works in 1850 and formed a partnership with B.F. Jones in 1851.[2] In 1854, Lauth retired from the steel firm, selling his partnership to James H. Laughlin, who led the company to be renamed Jones and Laughlin Steel Company.[3] He invented and patented the process for cold rolling of iron in 1859.[4] In 1871, he purchased the iron furnace at Howard, Pennsylvania, where he built a rolling mill in 1882.


  1. ^ "Bernard Lauth". Archived from the original on 2011-07-19. Retrieved 2008-08-30.
  2. ^ Swank, James Moore, ed. (1902). "Death of Hon. B.F. Jones". Statistics of the American and foreign iron trades for 1902. Annual statistical report of the American Iron and Steel Association. American Iron and Steel Association. Philadelphia: Allen, Lane & Scott. pp. 9–10. OCLC 7450172.
  3. ^ Thurston, George H. (1888). Allegheny county's hundred years. Pittsburgh: University of Pittsburgh, Digital Research Library. p. 258.
  4. ^ Patent