#579. To Mend Broken Saws

- By Formula pot


  • Refer procedure


Pure silver, 19 parts: pure copper, 1 part: pure brass, 2 parts; all are to be filed into powder and intimately mixed. Place the saw level upon the anvil, the broken edges in close contact, and hold them so: now put a small line of the mixture along the seam, covering it with a large bulk of powdered charcoal; now with a spirit lamp and a jeweler's blow-pipe, hold the coal-dust in place, and blow sufficient to melt the solder mixture: then with a hammer set the joint smooth, if not already so, and file away any superfluous solder; and you will be surprised at its strength.