Cyclopedia of mechanical engineering; a general reference work. Editor-in-chief Howard Monroe Raymond. Assisted by a corps of mechanical engineers, technical experts, and designers of the highest professional standing (1908)
American School (Chicago, Ill.), Raymond, Howard Monroe · Chicago American Technical Society · leaf 106
GOOD BETTER Fig. 156. ^4^^^^^y4 to the more or less thorough sea-soning of the wood, in the direc-tion indicated. If the pattern isintended for temporary use only,it may be constructed as above, but if durability and permanenceof shape are required, the two blocks should each be glued up outof… … Fig. 157. shown in Fig. 156. This is done not only because thin plank ismore evenly and better seasoned, but because in gluing, the ten-dency of the pieces to warp or spring is counteracted each by theother, and in addition the gluing of several thin pieces together 87 80 PATTERN MAKING stiffens…
Mechanical engineering -- Dictionaries
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