Modern instruments and methods of calculation : a handbook of the Napier Tercentenary Exhibition (1914)
Horsburg, E. M. (Ellice Martin), Napier Tercentenary Exhibition (1914 : Edinburgh, Scotalnd) · London : G. Bell · leaf 220
lar to the axis of the cone and rigidlyattached to it. The wheel R is capable of rotation about its axis and ofsliding along the horizontal generator. The wheel R is made to rotate by 1 Dinglers Journal, vol. cxxxvii. 2 Gonella, Teoria e descrizione, etc., Florence, 1825. 3 Gonella, Opuscoli… … Fig. 1. Suppose a line parallel to the rail is taken as #-axis, and a line perpendicularto the rail as y-axis. A pointer is made to trace the curve and is capable ofmotion in such a way that its distance from the %-axis, i.e. the y coordinate,is always equal to VM. This is attained by means of a…