Cyclopedia of mechanical engineering; a general reference work. Editor-in-chief Howard Monroe Raymond. Assisted by a corps of mechanical engineers, technical experts, and designers of the highest professional standing (1908)
American School (Chicago, Ill.), Raymond, Howard Monroe · Chicago American Technical Society · leaf 321
Fig. 24 … MACHINE FOR PUNCHING OR SHEARING.Showing Motor and Gearing.The Long ami Allstatter Co. FORGING 19 out the scale and leaves a clean joint. As the pieces are driventogether they are more or less upset at the joint, making a sort ofa burr. This upset part should be worked down at a welding…
Mechanical engineering
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