Mechanical drawing : a manual for teachers and students (1902)
Cross, Anson Kent · Boston : Ginn & Co. · leaf 176
NICAL DRAWING. PLATE XXIV. Fig. 124. Top and side views^ and a frofit view^ ojte half of whichshows a section^ of a bearing for the end of a shaft which moves back andforth in a plane^ and so requires a beaiHng that rotates. The shaft restsupon a box of co7nposition B, which is replaced when worn.… … 168 MECHANICAL DRAWING. PLATE XXV. THE HELIX. If a point moves in two directions about a given line as axis, — that isaround and along the line at the same time, — a helical curve results. The simplest form of this curve is found in a common spring. Thelines which bound the threads of screws are…
Mechanical drawing
Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.
