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To Solder Fine Brass Work

Wet the parts with a strong solution of salammoniac, apply tin foil between them, and heat no more than is necessary to fuse the and the flame can be directed to any point, on account of its being hinged at CC. The flame can be extended by using several stands, or by constructing several burners on one stand. The heat is much greater than from charcoal, can be regulated at pleasure, and tin. kept at the same temperature for any given time. In the process of hard soldering, the water should be driven off by gentle heat; the fusion of the flux soon follows; a glassy substance appears after the froth, which, in its turn, is replaced by the alloy in red liquid better than the usual brass solder, for uniting