A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 118
ctthat some certain part of the object is to be repeated. 15. Fig. 8 is an example of how repeated parts of anobject may be treated. Referring to the illustration, whichis a top view of a pipe flange, Fig. 8 {a) shows three boltsdrawn in. The position of the rest of the bolts is indicatedby the… … Fig. 8mind of the workman. This latter method is most commonlyused on working drawings. 16. When making a drawing of a gear-wheel, especiallywhen it is a working drawing, it is customary to draw inonly two or three teeth and specify how many teeth thewheel is to have. This answers the purpose as…
