The new metal worker pattern book. A treatise on the principles and practice of pattern cutting as applied to sheet metal work by Kittredge George Watson 1856- & Kittredge Anson O

Author:Kittredge, George Watson, 1856- & Kittredge, Anson O
Language: eng
Format: epub
Tags: Sheet-metal work
Publisher: New York, D. Williams
Published: 1896-03-25T05:00:00+00:00

Pattern Problems.

207

figures I 3 , 2", 3", etc. Through these points draw measuring lines in the usual manner. With the T-square parallel to the stretchout line, and brought against the points of the miter line E C in plan, cut corresponding measurirg lines, as indicated by the dotted lines, and through these points of intersection trace a line, as shown by K II. Then K II will be the shape of the end of Y N 0 U to miter against the raking molding.

It will be easily understood that the points as found iipon the line E C arc just the same as would be obtained there if the newly obtained profile were drawn into the plan of the arm C 13 W E and the points were

dropped from it to the line E C according to the rule. For the pattern of the raking molding, at right angles to the arm N Z V O in the elevation lay out a stretchout, L M, from the profile A'. Through the points in this stretchout draw measuring lines in the usual manner. Place the T-square parallel to the stretchout line, and, bringing it against the several points in the miter line in elevation N 0, cut corresponding measuring lines, as indicated by the dotted lines. Then a line traced through these points of intersection, as shown by P R, will be the shape of the cut on the arm N Z V 0 to miter against the horizontal molding.

PROBLEM 97.

The Miter Between the Moldings of Adjacent Gables of Different Pitches upon a Pinnacle with Rectangular Shaft.

The problem presented in Figs. 396 and 397 is one occasionally arising in pinnacle work. The figures represent the side and end elevations of a pinnacle which

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