Home instruction for sheet metal workers . ig. 403should measure 1 ft. 6 in., and the curb B, 6 in.; the horizontaldistance between the ridge and curb 12 in. The skylight tocontain one valley A, two common C, and two jack bars D, theworking plan being shown in diagram B* in the shop detail inFig. 402, in which are shown the various divisions and the one-half pattern for the ridge bar the student should Developing the Valley Bar in Pitched Skylights 281 cut from galvanized iron two pieces 1 ft. 6 in. long, measuringfrom point /. In a similar manner, using the pattern for thecurb a
Home instruction for sheet metal workers . ig. 403should measure 1 ft. 6 in., and the curb B, 6 in.; the horizontaldistance between the ridge and curb 12 in. The skylight tocontain one valley A, two common C, and two jack bars D, theworking plan being shown in diagram B* in the shop detail inFig. 402, in which are shown the various divisions and the one-half pattern for the ridge bar the student should Developing the Valley Bar in Pitched Skylights 281 cut from galvanized iron two pieces 1 ft. 6 in. long, measuringfrom point /. In a similar manner, using the pattern for thecurb and measuring from point S lay out two pieces 6 in. to diagram Bx the horizontal distance between theridge and curb or the measuring length is 12 in., and the jack baris to be placed from the ridge a horizontal distance of 6J/2 the detail contains these measurements, namely, 12 in. fromthe center line to the outside curb line in sectional view, and thejack bar 6l/2 in. from the ridge line in plan, then the patterns ob-. Cap over Jack Bar /zzzzzzzoMzzzzm
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1922
