. A textbook on mechanical and electrical engineering . JU^E 25. /393. For notice of copjrright, see page : SPUR GEAR WHEELS. Ca^st Iron^ FtclL lediately followint^ the title page. jrO:H-7<r SJVTITJ-C. °4529. § U MECHANICAL DRAWING 57 the describing circle to the nearest ;32d of an inch. To findthe nearest 10th or 32d, multiply the decimal part of thediameter by 16 or 32 and take the nearest whole number ofthe product as the number of IGths or olds that the decimalrepresents. Thus, in the above, the decimal part of thediameter is .91 inch; .91 X 16 = The nearest whol
. A textbook on mechanical and electrical engineering . JU^E 25. /393. For notice of copjrright, see page : SPUR GEAR WHEELS. Ca^st Iron^ FtclL lediately followint^ the title page. jrO:H-7<r SJVTITJ-C. °4529. § U MECHANICAL DRAWING 57 the describing circle to the nearest ;32d of an inch. To findthe nearest 10th or 32d, multiply the decimal part of thediameter by 16 or 32 and take the nearest whole number ofthe product as the number of IGths or olds that the decimalrepresents. Thus, in the above, the decimal part of thediameter is .91 inch; .91 X 16 = The nearest wholenumber to is 15; hence, the diameter of the describingcircle is 1||- inches. If the diameter had been required tothe nearest 3-2d, .91 X 32 = ; 29 is the nearest wholenumber; hence, the diameter would be Iff inches. In thiscase, take the diameter as 1{|- inches, approximating to thenearest IGth for all circular pitches above ^ of an addendum will be .3 X 1 inch = .3 inch; the root = .4X 1 inch = .4 inch; and the thickness of the tooth on thepitch circle = .48 X 1 inch = .48 inch. Draw the line of centers O O between the t
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmechani, bookyear1902
