An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 561
s abundant in winter. (3) The third-rail system is the usual method of suppfy-ing current to electric railways operating in subways or onelevated structures, or where the electric railway controls itsown right of way. The overrunning-contact type of thirdrail was first introduced and is more… … Fig. 352. — Third rail protected by a wooden shield. 345. Railway motors. The motors which are generallyused on electric cars are series-wound (because they have alarge starting torque) and are mounted on the truck and drivethe wheels through a single-reduction gear. The motor isusually built in a…
Electricity · Magnetism
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