wedging it in place good and strong so that
no solder can leak through. If the branch is tapered with the rasp
as shown the joint can be made very tight. The run of the pipe is
now laid on two bricks as was done with the horizontal joint. The
branch is laid over on a pile of bricks or wood at an angle of 45 deg.
The best way to secure this joint is to pour some half-molten
solder on the ends of pipe and brick, making a solder clamp. This
branch does not need any clamp or weight if it is properly entered
into the run. A strap of solder can be run over the end of pipe if
found necessary. Place the catch pan under the joint and then the
pipe will be ready to wipe.

WIPING.--In wiping this joint, the catch cloth is used not only to
catch the solder as it drops off from the pipe, but also to hold
the hot solder against the pipe to heat the under side of the
joint. Test the solder and see if it is the correct heat for
wiping. If so, prepare for wiping. After heating the ladle, take
some solder in it and proceed to drop the molten solder on the
joint. The ladle is moved constantly as the solder is dropped on
the run and then on the branch to get the entire joint to the
proper heat. As the solder drops off from the joint, it is caught
on the catch cloth and brought up on the top of the joint where it
is re-melted by dropping hot solder on it. Then the hot solder is
held in the cloth against the under side of the joint to get the
under side properly heated. The solder is worked around all parts
of the joint. When the heat is got up sufficiently and the solder
works freely around the joint, the branch cloth is taken and each
edge of the joint is wiped clean. Any surplus solder is brought up
on top of the joint and then wiped on the catch cloth. This solder
is then put on the under side of the joint. With the branch cloth
reach way around the joint and wipe each side, bringing the cloth
each time to the top and then off the joint. The last wipe is
directly across the top, wiping off any surplus solder that may
have accumulated from wiping the sides. The difficulty with this
joint is in getting the top and bottom to have an equal amount of
solder. With a little practice and by watching each motion your
faults can be noted and remedied. If the paper starts to come off,
it should be re-papered at once. When the joint is finished, it
should be left in position until the solder has had time to set and
cool, otherwise the branch will