The blacksmith's guide : valuable instructions on forging, welding, hardening, tempering, casehardening, annealing, coloring, brazing, and general blacksmithing (1907)
Sallows, J. F. (James Francis), 1865- · Brattleboro, Vt. : The Technical Press · leaf 112
NING AND TEMPERING they were cold. They came out straight and hard enough to give the best satisfaction of any tools of their kind I have ever seen in all my shop experience. Hardening Large Rolls. — In Fig. 25 is shown how to arrange a steel roll that must be treated so as to be very hard on the… … Fig. 25. Large Roll Arranged for Hardening. by the nut D. The diameter of the roll should be %6 inch larger than the diameter of the stud, and the washers must fit tightly against the faces of the roll. A pipe can be screwed into the end of the stud to handle the work with. If the roll is a large…
Blacksmithing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
