eceived its final facing off pre-paratory to the cutting of its teeth. The cutter head wasthen accurately adjusted in position for cutting the teeth,upon a firm but temporary rest. A temporary dividingwheel was then firmly and truly fixed upon one end of thesame arbor. To insure greater accuracy,… … The divisions for this wheel were made as follows : A stripof untempered steel (about one thirty-second part of an inchthick, one and a quarter inches wide, and of sufficient lengthto reach around the periphery of the wheel, and about threeinches to spare rfor lap), was prepared straight and even ;…
Patents · Gas · Consists · Compressing · Apparatus · Iron · Scientific American · Gas pipe · American patent · Gas works · South america · Compressing column · Hot air · Small pox · Cast Iron · Wrought iron
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