Practical electricity .. with questions and answers (1911)
Cleveland armature works, [from old catalog] comp, Lincoln, John C. [from old catalog] · [Cleveland, Ohio, Cleveland armature works] · leaf 96
hich would lift from 1,000 to 1,200 poundseach, weighed 11 pounds each. A flux of 140,000 lines is as high as it is possible to gowith ordinary steel, and higher than some steels will carry.Assuming that we have steel that will carry 140,000 lines,we would have a pressure of 272 pounds per square… … First, assume the magnetizing- coil to be one inch widebj^ two inciies deep. (Fig. 37).The sizes must be so selectedthat the area of the outside ofthe magnet equals that insidethe magnet, for as many linespass into the armature outsidethe coil as pass out of it inside Figure37 the coil. Pull of…
Electricity
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