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 95
een magnet and armature insquare inches. 83 TABLE No. Vn. Flux per sq. in. between Pull in lbs. per sq. in between armature and magnet. armature and magnet. 5,000 .34 10,000 ^ 1.4 15,000 3.1 20,000 5.5 25,000 8.7 30,000 12.5 35,000 20.0 40,000 22.2 45,000 28.1 50,000 34.6 55,000 41.9 60,000 49.9… … Figure 36 Best forms of magnet forlifting purposes. The best form of magnet for traction or lifting pur-poses is shown in Fig. 36. Fig. 30 shows n cross sec-tion of a magnet and its ar-mature. In this case it is de-sired to force as ^many linesof force as possible across thejoint between the…
Electricity
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