Experiment 54. To join tubes of different sizes.
FIG. 76
MAKING A TEE
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Take a piece of No. 4 tubing about 3 inches
long and close one end.
Take a piece of No. 6 tubing, attach a handle
FIG. 77
THREE-ARMED SIPHON
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to one end, heat the No. 6 tube in the blowpipe flame about 1 inch
from this end and draw it down to smaller size.
Break the small part at a point where it is
about the size of the No. 4 tube. If the hole is too large, heat
the edge until it is a little too small, and flare it out with the
flaring tool. If the hole is too small, heat the edge and flare it
out.
Now heat the ends of both tubes
(Fig. 74), and join them as described in the last
experiment.
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