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 270
by this means. For example, evenwhere machines are handling a very general line of work, thegreater part of it will be covered by a range of 8 to 1, so that ifthis amount is obtained electrically, gear changes will be seldomnecessary, and at the same time a comparatively inexpensive motorrequired.… … fSpeed NotchesFig. 10. (5) Long transmission lines may make alternating-currentdesirable, and, for certain extended plants, the best results can beobtained by its use, together with motor-generator for direct-currentvariable-speed motors. If, however, but one kind of current willbe available,…
Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
