A hand book of general instruction for mechanics, containing useful rules and memoranda for practical men (1907)
Smith, Franklin Elijah, 1872- · New York, D. Van Nostrand company · leaf 237
224 A HAND BOOK FOR MECHANICS Thus 60 3.1416 4X2= Ans. 3.1416)60.0000(19.095 = diameter of flange31.416 285840 282744 309600 282744 16856 19.095 - 8 = 11.095. Ans. Then 11.095 is the diameter of circle on which holesare drilled. Square Measurements Note: one dash after a dimension represents feet… … Fig. 40 Example. Find the surface in square feet, of a sheetof metal of the following dimensions. (Fig. 40.) This may be done by adding the ends A and B to-gether and dividing by 2, which will give the meanwidth, which multiply by the length, 3, 6. Thus CIRCULAR MEASURE2 4 + 4 32 225 16 mean width…
Mechanics · Arithmetic · Measurement
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