Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 243
SHEET METAL PATTERN DRAFTING. 227 Prob. 14. Develop the necessary patterns for a three-pieceelbow. Fig. 312. Prob. 15. Develop the necessary patterns for a five-pieceelbow. Fig. 313. Prob. 16. Draw the pattern of a two-piece oblong pipe elbow.Fig. 3T4. CHAPTER IX. ELEMENTARY MACHINE DETAILS,… … Fig. 315. combinations. It is employed in the construction of machinery for producing pressure contact and transmitting motion. WheD 228 ELEMENTARY MACHINE DETAILS. 22Q the thread of an external screw is made to fit into the corre-sponding hollow of an internal screw (Fig. 315) the latter istermed…
