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48
SHEET METAL DRAFTING
The pattern of the handle, Fig. 69, is a straight piece of metal ¾ in. wide and 3.1416 in. long. Hems are turned on the long side, and a ⅜-inch lap added for joining the ends when the piece is "formed up." The handle for the scoop shown in Fig. 73 is developed by the same method that was used for the body. This is not an exact pattern, due to the double curvature, but is near enough for practical purposes on small work. The cap for the handle is made by a 1⅛-inch hollow punch on a lead piece. By driving the punch and "punching" into the lead piece, a burr is formed on the cap.
