Harmsworth, Alfred Charles William, Sir, bart · London Bombay : Longmans, Green, and Co. · leaf 203
ser; the other terminal of the condenser and themoving arm of the contact breaker p. 3 being earthed. iM 2 i64 MOTORS AND MOTOR-DRIVING As in the low-tension magneto, the changes of magnetismin the armature core, which give rise to the primary alternatingcurrent, are produced by the rotation of a… … sleeve b is exactly the same as in the case of the low-tensionmagneto, but as some readers may not be familiar with this wewill briefly recall it. If the sleeve b entirely encircled the armature it wouldshield it completely from the action of the field magnets. Itdoes not, however, entirely…
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