New Process For Hardening Steel

John Pieper, a tool maker of Hamilton, O., recently gave a public exhibition of a new process he has invented for tempering steel, says the Chicago Record-Herald. It particularly applies to edged tools and promises to revolutionize the cutlery trade. A razor hardened by Pieper's process shaved long splinters off a wire nail and was immediately afterward used for shaving purposes. lts edge was not damaged at all. A keen butcher knife was driven through a quarter inch of common steel.