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New Handy Site On Plumbing

Steel Filings .......... 2 oz
Brass Filings.......... 2 oz
Fluric Acid.......... 11/4 oz

Dissolve the filings in the acid, apply to the parts to be soldered, having first cleaned the parts to be connected, keep the acid in a lead vessel only. Advantage may be taken of the varying degrees of fusibility of holders to make several joints in the same piece of work. Thus, if the first joint has been made with the fine tinner's solder, there would be no danger of melting it in making a joint near it with bismuth solder.

The fusibility of soft solder is increased by adding bismuth to the composition. An alloy of lead, 4 parts, tin 4 parts and bismuth 1 part, is easily melted, but this alloy may itself be soldered with an alloy of lead 2 parts, bismuth 2 parts, and tin 1 part. By adding mercury with 2 parts of tin will make a composition which melts at 122 degrees Fahr., or taken in this order for the same work.

First 1 tin ...2 lead Next 1 tin ... 1 lead Next 4 tin ...4 lead ...1 bismuth Next 2 lead... 1 tin ...2 bismuth Next 1 lead. . .1 bismuth . ..1 mercury...2 tin Next 3 lead... 3 bismuth ... 5 tin Next 5 lead. ..8 bismuth .. .3 tin

Solders

To solder lead...... 1 tin.... 2 lead
To solder tin........ 1 tin.... 1 lead
To solder pewter... 2 tin.... 1 lead

Spelters for brazing:

Spelter for brass and copper (hard); brass mixed with 1/2 to 1/5 or 1/2 of zinc. Spelter for brass and copper (soft); 1 part tin, 1 part lead. Spelter for pure tin; 4 parts pewter, 1 tin, 1 bismuth. Spelter for very soft solder; 3 parts bismuth, 3 lead, 5 tin. Metal which melts at a heat not exceeding boiling water is 8 parts bismuth, 5 lead and 3 of tin.