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p.180 HAND - FORGING ing, with dimensions, and the method of developing a section. The plan is drawn full size on heavy paper. For the elevation, vertical projection lines are drawn from the plan. A horizontal Fig. 117. Drawing for Shade of Electric Lamp line to form the base of the elevation is drawn above the plan and through the projection lines. Seven inches higher another horizontal line is drawn to form the top of the elevation. The elevation is complete when oblique lines are drawn |
Hand Forging by Thomas F. Googerty