Cyclopedia of architecture, carpentry, and building; a general reference work .. (1912)
American School (Lansing, Ill.) · Chicago, American school of correspondence · leaf 33
caused by the drying y^ y f^ out of the timber and the con-sequent shrinkage of the cellwalls is what is known aschecking. In any log of woodthere is always opportunity forshrinkage in two directions,along the radial lines followingthe direction of the medullaryrays, and around the circum-ference… … Fig. 8. Warped Board 23 14 CARPENTRY around the circumference of the log than along the radial lines, thelog must develop cracks around the outside as shown in Fig. 9.Such cracks are called checks. In timber which has been prepared
Architecture · Building
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