Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 451
-Bar and Built-Up Member Showing Clearance Allowed the center of the pin as a center and a radius equal to 2^ R describea couple of arcs 1, 1; (5) parallel to the bar and at a distance 1| Rfrom it, draw two lines, 2, 2, intersecting the arcs 1, 1; and (6) withthese intersections as centers and a…
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-165-136.webp)
