. Cyclopedia of architecture, carpentry, and building : a general reference work .... rough 7 draw aline to G, as before de-scribed. Then wull/i aa h be the quarter-pat-tern for the ogee E D. In Fig. 343 is shownhow the blanks are de-veloped when a beadmoulding is before, first draw thecenter line A^ B^ and thehalf-elevation A B C the bead takes up |of a circle, as shown bya c e j, and as the pat-tern for / e will be thesame as for e c, then willthe pattern for c c onlybe shown, which can alsobe used for e f. Bisecta c and c e, obtainingthe points b and d,which represent thest
. Cyclopedia of architecture, carpentry, and building : a general reference work .... rough 7 draw aline to G, as before de-scribed. Then wull/i aa h be the quarter-pat-tern for the ogee E D. In Fig. 343 is shownhow the blanks are de-veloped when a beadmoulding is before, first draw thecenter line A^ B^ and thehalf-elevation A B C the bead takes up |of a circle, as shown bya c e j, and as the pat-tern for / e will be thesame as for e c, then willthe pattern for c c onlybe shown, which can alsobe used for e f. Bisecta c and c e, obtainingthe points b and d,which represent thestationary points in thepatterns. Take thestretchouts of & to a andb to c, and place them ^S- 343. as shown from b to a and from h to c; also take the stretchoutsoi d to c and d to e, and place them from d to c and from d to e onlines drawn parallel respectively to a c and c e from points b andd. Extend the lines e c and c a until they intersect the centerline A* B^ at E and F respectively. From the points b and derect lines intersecting the line G 1, drawn at right angles to A^. 339 254 SHEET METAL WORK IV, at 14 and 1 respectively. Using G as center, and with radiiequal to G 14 and G 1, describe quarter-sections, as shown. Divideboth into equal parts, as shown from 1 to 7, and from 8 to 14. WithE as center, and with radii equal to E c, E d, and E e, describe thearcs c c, d d, and c e. From any point on one end, as e,draw a radial line to E, intersecting the inner arcs at d! and c. Nowtake the stretchout of the section from 1 to 7, and, starting at d, layoff the stretchout as shown from 1 to T. Through 7 draw a linetowards E, intersecting the inner arc at c and the outer one at will c c e c be the quarter-patterji for that part of the bead shown by c e, also for e f, in elevation. For the pattern for that part showncl=^ by a c, use F* as center; and with radii equal to F a, F b, Fig. 34-1. and F c, describe the arcsa a, b b, and c c. From any pointon the arc b b, as 8, la
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