The illustrated architectural, engineering, & mechanical drawing-book : for the use of schools, students, and artisans ; upwards of 300 illustrations (1856)
Burn, Robert Scott · London : Ward and Lock, 158 Fleet Street · leaf 132
explanation. The method of copying theteeth of bevil-whecls may be seen in ExAMri.E 30, fig. 37, where ah is the centre-line of wheel, eg the pitch-line, c /( the line terminating the teeth on the back part of the wheel e;/. ENGiyEERINO, AND MECHANICAL Dr.AWIXG-COOK. 120 The line x x gives the… … respondintr to a h in fig. 36. The distances between the teeth are set offon theline f A to m, h, p, s, i, &c.; lines are drawn from these to thepoint on the line a l>, to which og converges ; these lines are produced tomeet the line c <i in the points 1,^2, 3, 4, o, &c. From these…
Architectural drawing · Mechanical drawing
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
