Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 419
Fig. 951. in the smaller sizes of pipes. The flange coupling (Fig. 951) is preferred bymost fitters, and they are made of diameters up to 14; the thickness is aboutone half that of the length of a coupling of the same diameter. The bolts arefrom f to f, and spaced somewhat larger than that given…
Mechanical drawing
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