American Edition of the British Encyclopedia: Or, Dictionary of Arts and Sciences ; Comprising an Accurate and Popular View of the Present Improved State of Human Knowledge, Volumen6Mitchell, Ames and White, 1819 |
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... steel . If the method of simple burnishing down is had recourse to , the heat requisite for this purpose will , in ma- ny cases , bring the temper of the steel too low on such occasions , the way al- ready described for gilding on ...
... steel . If the method of simple burnishing down is had recourse to , the heat requisite for this purpose will , in ma- ny cases , bring the temper of the steel too low on such occasions , the way al- ready described for gilding on ...
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... steel ; they have no sharp edges , and spring open when permitted ; the workman has seve ral of these of different sizes , which are hung upon hooks ate in the stool , fig . 4 . Fig . 4 , is a pair of compasses to measure the work , and ...
... steel ; they have no sharp edges , and spring open when permitted ; the workman has seve ral of these of different sizes , which are hung upon hooks ate in the stool , fig . 4 . Fig . 4 , is a pair of compasses to measure the work , and ...
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... steel for the fabrication of cutting instruments . Bismuth renders gold white and brittle ; as do likewise nickel , manganese , arsenic , and antimo- □ y . Zinc produces the same effect ; and , when equal in weight to the gold , a me ...
... steel for the fabrication of cutting instruments . Bismuth renders gold white and brittle ; as do likewise nickel , manganese , arsenic , and antimo- □ y . Zinc produces the same effect ; and , when equal in weight to the gold , a me ...
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... steel , to fit it to be spun on a stick , or to be used flat , as it is , without spinning , in certain stuffs , laces , embroideries , & c . GOLD thread , or spun gold , is a flatted gold , wrapped or laid over a thread of silk , by ...
... steel , to fit it to be spun on a stick , or to be used flat , as it is , without spinning , in certain stuffs , laces , embroideries , & c . GOLD thread , or spun gold , is a flatted gold , wrapped or laid over a thread of silk , by ...
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... steel , and about three inches in diameter . They are set very close to each other , and turned by means of a handle fastened to one of them , which gives motion to the other . The gold wire , in passing between the two , is rendered ...
... steel , and about three inches in diameter . They are set very close to each other , and turned by means of a handle fastened to one of them , which gives motion to the other . The gold wire , in passing between the two , is rendered ...
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