Elementary lessons in electricity & magnetism (1895)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916 · New York and London, Macmillan and co. · leaf 58
e. — The Plate Machine,as its name implies, is constructed with a circular plate of glass or of ebo-nite, and is usuallyprovided with twopairs of rubbersformed of doublecushions, pressingthe plate betweenthem, placed at itshighest and lowestpoint, and providedwith silk flaps, eachH extending over… … Fig. 32. chap, i USE OF FRICTIONAL MACHINES 51 as the row of points in the cylinder machine. A commonform of plate machine is shown in Fig. 32. The actionof the machine is, in all points of theoretical interest, thesame as that of the cylinder machine. Its advantagesare that a large glass plate is…
Electricity
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