Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 105
be closely inspected forflaws and for crookedness or too great departure from a straight line.Where appearance is of considerable importance, octagonal polesmay be used, although these cost considerably more than round poles.Gains or notches for the cross-arms should be cut in the poles beforethey… … Fig. 64. CulOut Panel with Push-Button Switches. With Co\ er. nor less than h inch deep. Gains should not be placed closer than 24inches between centers, and the top gains should be at least 9 inchesfrom the apex of the pole. Pole Guying. Where poles are subject to peculiar strains dueto unusual…
Architecture · Building
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