This section is from the book "The New Metal Worker Pattern Book", by George Watson Kittredge. Also available from Amazon: The new metal worker pattern book.

Fig. 363 shows a partial elevation and a portion of the plan of an octagon pinnacle having equal gables on all sides. The first step in developing the patterns is to obtain a miter line at the foot of the gable, as shown by L. To do this proceed as follows: Draw the profile K, as shown, placing it so that it shall correspond in all its parts with the lines of the molding in elevation. Divide into spaces and number in the usual manner, and through the points draw lines parallel to the lines of the gable toward L, as shown. Draw a duplicate profile in the plan, K1, so placed as to correspond with the lines of the molding in plan. Divide it into the same number of spaces, and through the points in it draw lines parallel to the lines of the plan, cutting the line D F, representing the plan of the miter. From the points in D F thus obtained carry lines vertically, intersecting corresponding lines drawn from the profile in the elevation. A line traced through the several points of intersection, as shown by L, will be the line of miter in elevation between the moldings of the adjacent gables. The center line O N forms the miter line for the top of the gable.

For the pattern proceed as follows: Upon any line, as E E, drawn at right angles to the lines of the gable, lay off a stretchout of the profile, as shown by the small figures. Through the points of the stretchout draw the usual measuring lines. Place the T-square at right angles to the lines of the gable, and, bringing the blade successively against the points in the two miter lines above described, cut the corresponding measuring lines, as shown. Lines traced through the points of intersection thus obtained will give the pattern of the molding. The roof piece may be added by setting off A1 B1 at right angles to A1 C1, equal in length to A B of the side view. In like manner, upon the line from M set off D1 C1 equal to C D of the side view. Then draw F1 D1 B1, thus completing the pattern.

Fig. 363. - Pattern for the Moldings and Roof Pieces in the Gables of an Octagon Pinnacle.

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