Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 42
PATTERN FOR CONICAL BOSS _J.- … Fig, 25. 29 22 TINSMITHING as shown by 1^, 2^ 3^, and 2^, and divide the circumference intoequal spaces, in this case four. (In practical work it would bebetter to use more than four). Parallel to the center line and fromthese four divisions draw lines as shown intersecting the back of thescoop at…
Architecture · Building · Carpentry
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