Carpenter . ^ / Fig. 1 shows a portion of the roof plan portions of hip would be 6 feet 6 inchesof a two-thirds pitch, octagon, roof, run and 8 feet rise. 50 The Carpeimfter Lay out a diagram, a b c a, Fig. 3, onthe floor. As the distance a-e, Fig. 2, is4 feet 2 inches or 4 2-12 feet, the distancea-e, Fig. 3 would be 4 2-12X13 inches or4 feet 6 2-12 inches from the point e, Fig. at h; insert pencil at f, describe curvedline a-d which completes lower portion ofhip. The upper part is exactly the same butis worked from the line x-x. 3, erect a perpendicular e-f, equal to the From the point c
Carpenter . ^ / Fig. 1 shows a portion of the roof plan portions of hip would be 6 feet 6 inchesof a two-thirds pitch, octagon, roof, run and 8 feet rise. 50 The Carpeimfter Lay out a diagram, a b c a, Fig. 3, onthe floor. As the distance a-e, Fig. 2, is4 feet 2 inches or 4 2-12 feet, the distancea-e, Fig. 3 would be 4 2-12X13 inches or4 feet 6 2-12 inches from the point e, Fig. at h; insert pencil at f, describe curvedline a-d which completes lower portion ofhip. The upper part is exactly the same butis worked from the line x-x. 3, erect a perpendicular e-f, equal to the From the point c, lay off the distance distance e-f, Fig. 2, or 4 feet 2 inches; from c-j, equal to a-e; erect perpendicular I. the point f, mark off a distance f-g, equalto a-e, Fig. 3, or 4 feet 6 2-12 inches, andthe same at f-h. Fasten a tape or a piece of steel or ironwire (not copper wire, as it would stretchtoo much) at g, pass it around f and fasten j-k, equal to e-f; from k, lay off k-land k-m, each equal to a-e or c-j; at-tach tape at j, pass around k, fasten atm; insert pencil at 1; describe curve c-dand hip is complete. The dotted lines, numbered (l)-(l), 51 The Carpeoter (2)-(2), (3)-(3), etc., indicate the posi-tion of tape and pencil at different pointsalong the top of rafter. Fig. 4 illustrates method of findinglengths and bevels of jack rafters. Lay out diagram a-b-e-a; with point e asa center, describe are a-d, and with f as a For cheek cut, find length, c, of bevel,Fig. 1, on any piece of stuff (rememberthat 5-12 of run and length, cut on length,will give cheek cuts of jacks for octagon (inthis case 2% and 10, cut on 10) ; transferlength of bevel to diagram, as i at g-h,Fig. 4, now transfer a
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Keywords: ., bookcentury1900, bookdecade1910, bookidcarpenter30u, bookyear1910
