Mechanical drawing; a treatise on the drawing of mechanical and machine details (1920)
Jones, Franklin Day, 1879-1967 · New York, The Industrial press; [etc., etc.] · leaf 281
sheets is unrolled orflattened, it will appear as shown to the right in the illustra-tion. The problem is to determine the shape of the curveG, K, H. The first step is to divide the end view or circlecorresponding to the size of the elbow into a number of equalparts, which should preferably be… … Fig. 11. Development of a Three-piece Elbow The base line EF of the pattern or development is made equalto the circumference of the elbow, neglecting any allowancefor a lap joint, and the height EG and FH is equal to lengthAC. Line EF is next divided into as many equal spaces asthe circle, or into…
Mechanical drawing
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