Fig 43. This is my own method of pipe-bending, and is very useful when
properly handled with plenty of force, but requires great care and
practice. You must have a union sweated on the end, A, Fig. 43, and
the ball, B, to fit the pipe. The cup-leather, E, should have a plate
fixed on the front to press the ball forward. Pull up the pipe as you
please, and pump the ball through; it will take all the dents out, and
that too very quickly.
[Illustration: FIG. 43.]