Identifier: textbookonmechan00inte (find matches)
Title: A textbook on mechanical and electrical engineering
Year: 1902 (1900s)
Authors: International Correspondence Schools
Subjects: Mechanical drawing Mechanical engineering Electrical engineering
Publisher: Scranton : International Textbook Co.
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries

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e arms. All these arcs terminate at the pointof tangency. The cross-section part on the arm indicatesthat a cross-section taken at £ F would look as shown; thatis, that the arm is elliptical. The other view shows a conventional method largelyused in drawing rooms of indicating a section of the wheel.It is termed a conventional method because it would reallybe impossible to obtain a section like the one shown. Theo-retically, the arm in this view should be sectioned, but, forconvenience, a section is imagined to be taken through therim and hub on the line / z- and turned around to the posi-tion /;/;/, and the two arms are shown in projection as ifthey were directly back of the line ;// ;/. Draw the centerline / (/ and the sections of the rim as shown. Draw thearms from the dimensions given. Draw the hub as shown,using a radius of 3% of an inch to draw the fillets or arcstangent to A B and to the arm; make O H equal to O Hin the other view and describe an arc through // tangent MACHINE
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