Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 420
Fig. 956. Fig. 957, Fig. 958. Fig. 959. is to connect pipes of different diameters, but the reduction of one side or armof a coupling tee, or cross is better. Fig. 958 is a plug to close up the end of a pipe by screwing it into thecoupling; caps are used for the same purpose ; half-couplings with…
Mechanical drawing
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