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Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)

American Technical Society · Chicago : American Technical Society · leaf 87

An illustration from Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc., 1916, leaf 87
s Driving-Wheel Lathe Courtesy of Westinghouse Electric and Manufacturing Company tools by means of gear boxes or other mechanical speed-changingdevices. This arrangement, however, does not give as fine speed 71 6 MOTOR-DRIVEN MACHINERY gradations as can be obtained by adjustable-speed… … Fig. 4. Motor-Driven Niles Vertical Boring MillCourtesy of Westinghouse Electric and Manufacturino Company measuring the horsepower input by wattmeters in circuit with themotor. A less accurate but more usual method is to refer to cata-logues of manufacturers for authentic data regarding similar…

Electrical engineering

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