Babbitt, Arthur B. (Arthur Bradford), b. 1873 · New York, H. Holt and company · leaf 16
mplete enough for anydraftsman is shown in Fig. 4. The compass (A) used for drawing circles and arcseither with pencil or ink, is shown with the pencilattachment (B) in place. By loosening the clamp-ing screw (C) the pencil attachment may be removedand the pen attachment (D) inserted. The dividers… … at one end to be inserted in the leg of the compass,and a receptacle at the other end into which eitherthe pencil or pen attachment may be placed. Thisextension is used when circles of large radii are desired. 6 MECHANICAL DRAWING Two sizes of straight-line pens are shown at H,either of which may…
Mechanical drawing
Internet Archive · University of Connecticut Library · Public Domain Mark 1.0. Free to use for anything.
