. The practical draughtsman's book of industrial design, and machinist's and engineer's drawing companion: forming a complete course of mechanical, engineering, and architectural drawing . Practical I)ran° htsman Plate 20. _^«SI r i. \rmen(raud & Amouroux BOOK OF INDUSTRIAL DESIGN. 65 through the different points of contact on the stationary circle,measured upon the arcs described with the centre, c, to the samearcs, but so that the extremities of the whole may lie in the pro-longation of the radius, c b. Thus the distances, e e, ff, g g, &c,are set off, from 1 to a2, 2 to 65, 3 to c2, &c. The
. The practical draughtsman's book of industrial design, and machinist's and engineer's drawing companion: forming a complete course of mechanical, engineering, and architectural drawing . Practical I)ran° htsman Plate 20. _^«SI r i. \rmen(raud & Amouroux BOOK OF INDUSTRIAL DESIGN. 65 through the different points of contact on the stationary circle,measured upon the arcs described with the centre, c, to the samearcs, but so that the extremities of the whole may lie in the pro-longation of the radius, c b. Thus the distances, e e, ff, g g, &c,are set off, from 1 to a2, 2 to 65, 3 to c2, &c. The diagram refer-ring to this construction forms the right-hand portion of fig. 1. When the generating circle has made an entire revolution, thecurve obtained is an entire epicycloid, adb, comprising two equaland symmetrical portions on either side of the line, D E, which isequal to the diameter of the moving circle. EXTERNAL EPICYCLOID DESCRIBED BY A CIRCLE ROLLING ABOUT A FIXED CIRCLE INSIDE IT. Figure 3.—Plate XIX. 200. For this diagram, which is analogous to the preceding one,the radii of the circles are given, c A being that of the fixed circle,and B A that of the moving one. Divide the first circle into anyn
Size: 1787px × 1398px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectdecorativearts, booksubjectdrawing
