laying it up. We have endeavored to make both the article and engravings simple and clear, and hope that the practical engineer will derive some benefit from our exposition. In the next figure which is 6, the strand No. 8 is shown loosely drawn up to its place; the operator’s hand going under all… … cess is founded. It was discovered some time since by Deville that if oxide of iron is mixed with wrought Fig. 7. Thus the principle of this gasket is illustrated, iron, the wrought iron will melt at much lower tem- for it is only necessary to go between each alternate perature than it will without…
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