Collins, A. Frederick (Archie Frederick), 1869- · Boston, Small, Maynard and company · leaf 52
easures% inch wide and % inch long. File the endsmooth and have a machinist or a steam-fitterthread one end of it and screw a standard sized 1 A thin, round tool for enlarging and tapering holes. Two Simple Steam Turbine Engines 37 union, that is a pipe coupling, on to it so that itcan be joined to… … ^45?
Steam-engines
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