Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 360
inol9l8l7Vs432 I … 11-4—-PATTERN\i—L ^9/ 10 Fig, 277. 281 206 SHEET METAL WORK rule generally employed in the shop, which, however, can be used onlywhen the angle H G F in plan is 90°, or a right angle. To obtain the pattern by the first method, proceed as follows:First, draw the elevation of the mould as shown by 1,…
Architecture · Building · Carpentry
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