Johnston, Philip Devereux, 1855- · New York, D. Williams Company · leaf 11
nter-secting arcs at D. Draw A Ewith A and D as points. 5 To divide a straight lineinto any number of equal parts.Let A B be the given line.Draw A C at any convenientangle (acute) with A B and mark A C off into the required number of equal points,as I—2—3- Draw C B and parallel with it 3—3,2—2 and…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
