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 32
19 MACHINE FORGING removed with the bar alone, place the assistant between the hub and key and you can then remove the key easily. This is much better than looking for half an hour for a block to place between the hub and key, as is usually done. … Wrench Blocks. Open End Wrench. — In making an open end or S wrench, it is the usual practice to draw out the handle and round up the end as in Fig. 25, and then cut out the opening to the size wanted as indicated by the
Blacksmithing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
