Woodwork for secondary schools; a text-book for high schools and colleges, prevocational and elementary industrial schools (1916)
Griffith, Ira Samuel, 1874-1924 · Peoria, Ill., Manual Arts Press · leaf 121
uklbe held in place until the solder has melted thoroly, anduntil the color of the tongs has changed thru a dull redto a black. If the tongs are removed too soon the jointwill chill before the solder has had time to set. AVhcnhaste is necessary, two pairs of tongs may be used. Thebright red ones… … Fig. 189.Brazing with Blow Torch. WOODWORKING MACHINES. 117 Air Pump Upper- EK15ia4 5PR1NG5 ■TEN6I0N Strap silver solder. Silver solder is more expensive. It comesin sheets. Brass spelter comes in odd shaped forms likeshot. Place a small piece of brass solder on top of thejoint and wrap a small…
Woodwork (Manual training)
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