Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 324
actualconditions. 269 70 ELECTRIC WIRING Poles. Poles should be of selected quality of chestnut or cedar,and should be sound and free from cracks, knots, or other flaws.Experience has proven that chestnut and cedar poles are tlie mostdurable and best fitted for linework. If neither chestnut nor… … Fig. 63. Cut-Out Panel with Push-Button Switches. Cover Removed. and some of the other woods are not only less strong initially, but areapt to rot much (juicker at the wind and water line—that is, ju.stabove and below the surface of the ground. The proper height of pole to be used depends upon…
Architecture · Building · Carpentry
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