. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. , of its discs, a light equivalent to4800 candles. Rapieffs machine consists of several ring-shaped inductors AAA, Fig. 1045, and severalarmatures of the same shape and arrangement, B B B are disposed alternately side by side inplanes normal to their common axis, the spaces between them being rendered as small aspossible. The armatures B B B are fitted on a common shaft, wherewith tliey are caused torotate, while the inductors AAA being secured on a frame or stand, remain fixed; or inversely. DYNAMO-ELECTE
. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. , of its discs, a light equivalent to4800 candles. Rapieffs machine consists of several ring-shaped inductors AAA, Fig. 1045, and severalarmatures of the same shape and arrangement, B B B are disposed alternately side by side inplanes normal to their common axis, the spaces between them being rendered as small aspossible. The armatures B B B are fitted on a common shaft, wherewith tliey are caused torotate, while the inductors AAA being secured on a frame or stand, remain fixed; or inversely. DYNAMO-ELECTEIC AND MAGNETO-ELECTRIC MACHINES. 481 The number or size of both inductors and armatures depends upon the special purpose for whichthey are employed; the Induction being produced in this case from both sides of each armature, itis lermed two-sided induction. ,«.«. x. t- j v, ats ^cu-t.^-,^ To illustrate the principle of Grammes machine, Fig. 1046 is of a magnetized bar, A B Whena conducting helix, in reciprocal movement, is brought towards the bar from its position at X, an m-. t duced current is produced. The current is in the same dii-ection while the helix passes the middleM of the bar A B, until it leaves the opposite pole B. -,. ^ . j f i In the entii-e course of the helix on to and from the magnet, two distinct periods are to oedistino-uished • in the first half of the movement the current is direct, and in the second it isinverted If instead of moving from left to right, the movement is from right to left, everything
Size: 1719px × 1453px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectenginee, bookyear1879
