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 281
ges. The lower voltages, while used chiefly forstarting, prove of great assistance at times for setting up work The two systems which have been advocated differ in that onerequires an arithmetical series of voltages, and the other a geomet-rical series. In either case a balancer, or specially… … Fig. 13. system, but. in reality, they do not complicate matters to anygreatextent nor add materially to the cost of a large installation. While, as stated above, the average machine tool may be con-sidered as requiring constant horse-power through its workingrange, in numerous instances,…
Mechanical engineering
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