Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 250
to the extent desired. A^Tierever a flat-tened head would interfere with some connecting part of a structureit is necessary to countersink the heads, sometimes on one end ofthe rivet and sometimes on both ends. Fig. 189 shows conventionalsigns for representing the different kinds of rivet heads…
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
