Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 199
btained inthe followingmanner :—Drawp o at right anglesto 1 8, and o eat right angles too p. Measure ono R the height.Join p r, which gives the inclination andtrue length of the centre line of thefull surfaces. Bisect line 2 3, and atright angles to it draw a k, making a kthe same length as p p.… … a1 a 11 .; TIMBER ROOFS. 179 b project up to meet the line p r in b, makea z equal to p b, then through z draw lineg z m parallel to a 3 ; next make 3 l equal toe 8. Then 2 l m k is the true shape of theside 1 e b o. From g draw a parallel to 7 8,meeting 8 o in k, then from the point h drawa line…
Carpentry · Joinery
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