[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 123
Figure i. The magnetic circuit is of unusually low resist-ance by reason of its shape, its shortness, which isshown by the diagram, and the superior quality ofiron used. RECENT APPLICATIONS. 121 There is no magnetism whatever in the frame,bed or shaft of the machine, as the magnets aresupported at… … THE PERRET MOTOR. There is therefore no opportunity for magneticleakage, and, furthermore, the whole is enclosed by 122 ELECTKICITY AND ITS a shield or case of sheet metal, as shown in theillustration on page 121. The practical advantages of low speed machinesare many. For instance, in ordinary…
Electricity
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