ortion ofthe tool, and byexpanding themmore or less thesame tool is adaptedto different sizes of tube. The tool is worked by the pawl and ratchet in eitherdirection, and when it is desired to work near the rim of theboiler one half of the handle may be removed and the toolcan l)i> worked by the… … used to hold nipple and short pieces of pipe while they arebeing threaded on the outside. The general usefulness ofthis tool will be understood and appreciated by fitters andboiler makers whose patience has been tried by ordinarytools for performing the various operations of which thisinstrument is…
Patented · Silk · Apparatus · Machine · Ammonia · Manufacture · Scientific American · Patents · Ammonia gas · Strongest nitric · Load water · Feed water · Sewing machine · Nitric acid · Silk culture · Specific gravity · Cast Iron
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