Structural mechanics; comprising the strength and resistance of materials and elements of structural design (1905)
Greene, Charles E. (Charles Ezra), 1842-1903, Greene, Albert Emerson. [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 150
Fig. 57, made by bending the bar around thepin, that space is empty. Experiment has shown that for strengththis loop should be long, from two to two and one-half diametersof the pin. If it were not for the weld and the excess of metalon either side of the pin, such a form of eye would be a… … Fig. 57