Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 186
st. Here the action at a is bad, but the fact that thehook is not in contact with a tooth face at this point makes theconsequent wear of little account. The action at b is good. Theaction at c is bad, but this is on the slack side of the chain and thisbad action causes no wear. The action at d is… … Fig. 21. Fig. 25. Figs. 19 to 29.—The correct use of Ewart chain. Fig. 29. 20. The action is said to be bad when, in bending, the link rubs onthe sprocket, producing wear on the sprocket and outside or externalwear on the hook, Fig. 21. Another fact is also to be remembered: There is never more…
Machine design
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