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Brazing Torch: a Pressure-Tank Gasoline or Kerosene Torch (Shop Notes, 1909)
A shop brazing and tempering torch: a wall-hung pipe tank of gasoline or kerosene pumped up with a bicycle pump, feeding a 1/8 in pipe whose end is coiled round a short 1 in pipe; the flame heats the coil, the oil turns to gas, and it blasts out through a pinhole cap.
Two burners on a tee give a bigger heat.
Source: Popular Mechanics Shop Notes for 1909, pp. 861-862. Picture: the article's drawing.
Intermediate
Unknown
Instructions
1
1
Make the tank
Make the tank
Cap both ends of a 2 in pipe 20 in long. Drill three holes in the top cap: one for the rubber tube from a bicycle pump, one for a steam gauge, and one with a screw plug for filling with fuel oil.
Materials for this step:
Steel Pipe (thick-walled, threaded ends)1 2 in x 20 in
Threaded Pipe Fitting3 two caps, plug
Pressure Gauge1 piece
Rubber Tubing1 pieceTools needed:
Hand Drill
Tap and Die Set
Pipe Wrench
Bicycle Floor Pump2
2
Coil the burner
Coil the burner
Drill the bottom cap and connect a 1/8 in pipe D, any length, with a globe valve in it to set and shut off the oil. Fill the last 10 in of the pipe with lead, coil it round a 1 in pipe F 6 in long, and turn the end out to take two elbows and a short nipple; then melt the lead out. Drill a small hole in the centre of a 1/8 in cap and fit it on the end (E) so the hole lines up with the centre of pipe F.
Materials for this step:
Steel Pipe (thick-walled, threaded ends)1 1/8 in, and 1 in x 6 inThreaded Pipe Fitting4 two elbows, nipple, 1/8 in cap
Globe Valve1 pieceTools needed:
Lead
Skimming Ladle
ForgeHand DrillPipe Wrench3
3
Start the burner
Start the burner
Hang a little cup holding three or four teaspoonfuls of oil just below the coil and light it to heat the coil; then pump up the tank and open the globe valve. For more heat connect two burners on a tee so their blasts meet.
Tools needed:
KeroseneBicycle Floor PumpMaterials
5- 1 1/8 in, and 1 in x 6 inPlaceholder
- 4 two elbows, nipple, 1/8 in capPlaceholder
- 1 piecePlaceholder
- 1 piecePlaceholder
- 1 piecePlaceholder
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