Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 188
ls directly on line 2, then ffwill be the position of the holes in the pattern. Laps must beallowed to all patterns. In putting up rectangular hot air pipe it is often the casethat the pipe will be placed in the partition of one story, then hasto fall forward and twist one quarter way around to… … 151 80 SHEET METAL WOKK and leaning to the right as much as is shown in Fig. 71 in plan.This problem is known as a transition piece in a rectangular pipe.Full size measurements are given in Fig. 71 which should bedrawn one-half size. The height of the transition piece is 1 foot.8 inches, the size…
Architecture · Building · Carpentry
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