Benjamin, Charles Henry, 1856- [from old catalog], Hoffman, James David, 1868- [from old catalog] joint author · New York, H. Holt and company · leaf 288
S^ = -^--—^ = 679 lb. per square mch. /Sf = ASi + >S2 = 679+212.7 = 891.7 lb. per square inch. TOGGLE-JOINT DETAILS 257 Since the usual value of St for cast iron is 1500 to 2000, thisshape and size of section would be stronger than necessary. Now, if the figures of the section be changed to read… … Fig. 122. This seems to agree very well with the safe value of cast iron intension, and may be used. Since this is a symmetrical section andsince cast iron is much weaker in tension than in compression,the latter will not need to be investigated and the above figurescan be accepted for the sizes of…
Machine design
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