The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . Fig. 258. influence of the current of air upon theflame. A ring adapted to slip over thefinger Avhile working, is soldered to themiddle joint of the pipe, and the quantityof gas is controlled by the stop-cock and. Fig. fjpring lever shown in the cut, tne gas beingsupplied to the pipe by a rubber tube connectingit to the nearest gas jet in the usual wav. Thushaving the shape of the flarne under control, and y Fig. 260. Soldering Pads. 302 the quantity variable at will, tlie workman
The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . Fig. 258. influence of the current of air upon theflame. A ring adapted to slip over thefinger Avhile working, is soldered to themiddle joint of the pipe, and the quantityof gas is controlled by the stop-cock and. Fig. fjpring lever shown in the cut, tne gas beingsupplied to the pipe by a rubber tube connectingit to the nearest gas jet in the usual wav. Thushaving the shape of the flarne under control, and y Fig. 260. Soldering Pads. 302 the quantity variable at will, tlie workman is in position to accomplishthe desired end speedily and effectually. To use to the best advantage, set the jamb-nut so that with the valvelever in its normal position, the flame at the end of the pipe will just keepalight. The blow-pipe can then be laid down temporarily, and againused without the trouble of turning off the gas or relighting. When used as a mouth blow-pipe, the inost convenient way to hold itis with the third finger through the ring. For bellows work it is betterto pass the ring over the index finger. The ring also serves, with thevalve-lever, as a rest to hold the flame-nozzle away from the table whenthe blow-pipe is laid down temporarily. To produce an oxy-hydrogen flame, connect the air-pipe
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Keywords: ., bookcentury1800, bookdecade1890, bookidamericanwatc, bookyear1892
