Soldering Catch on Gun-barrel.
—In soldering a catch on a gun barrel it will first be necessary to tin both barrel and catch, and then to wire them together, in addition binding the barrels for some distance from each side of the catch, making the ribs secure with wedges. To melt the solder, use heaters; these are generally made of copper with iron handles; or iron rods can be used, the ends being made red hot and inserted in the barrels. Cut some small slips of thin solder and place them on each side of the catch, using powdered resin. As soon as the solder melts, remove the heaters and cool the barrels.
CHAPTER V
Soft-soldering with Blowpipe or Bunsen Burner
Fig. 23.--Mouth Blowpipe
Fig. 24.--Black’s Mouth Blowpipe
Fig. 25.--Fletcher’s Mouth Blowpipe
Fig. 23.--Mouth Blowpipe
Fig. 24.--Black’s Mouth Blowpipe
Fig. 25.--Fletcher’s Mouth Blowpipe
Fig. 26.—Section through Blowpipe Flame