to the top edge and as the solder runs
down the pipe catch it with the cloth and draw it up again. The
solder can be worked around and up and down the joint, but always
keep the top edge covered with hot solder. The solder is likely to
drop off the joint entirely unless watched closely. When the
correct heat is obtained, drop the ladle. Take the wiping cloth in
the right hand and with the fingers spread, clean off the top edge
quickly, then shape the joint with the one cloth. With a little
practice you will gain this knack. The joint can then be wiped. The
left hand can steady the pipe. Spread the index finger and third
finger to opposite sides of the cloth and wipe around the joint.
CHAPTER VI
PREPARING AND WIPING JOINTS (_Continued_)
TWO-INCH BRASS FERRULE
MATERIALS.--The beginner should continue wiping the vertical round
joint until he is able to obtain a symmetrical bulb. A joint should
be wiped in each of the foregoing positions for exhibition
purposes, so that the beginner can have before him the best work
and strive to make the next joint better. This next joint, the
2-inch brass ferrule, is wiped in an upright position. The
materials necessary are the 2-inch brass ferrule, 6 inches of
2-inch light lead pipe, paste and paper, 1/2 and 1/2 solder, rosin,
wiping solder, catch pan, and supports.
[Illustration: FIG. 24.]
TOOLS REQUIRED.--The tools necessary for this work are as follows:
the saw, rasp, drift plug, dresser, file, soldering iron, bending
irons, wiping cloths, shave hook, and ladle.
PREPARATION.--The lead pipe must be fitted into the brass ferrule.
The brass ferrule has to be tinned first. To do this, proceed as
follows: file the ferrule for about 2 inches on the tapered end. Do
not file too deep, but just enough to expose the pure bright metal.
Now measure from the small end 1-1/4 inches down toward the beaded
end. From this point to the bead, cover the brass with paste and
paper. No paste must get on the 1-1/4-in. filed end. This end
should not be touched with the fingers. If paste gets on it, the
process of filing must be done over again as the solder will not
stick where there is paste. If the brass ferrule is filed while the
paper is on the brass, the filing will destroy the straight edge of
the paper and an even joint cannot be made. It would therefore be
necessary to re-paper the brass. Take some powdered rosin and cover
the filed end of the ferrule with molten solder usin
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