The making of the drum trap will bring out the skill of the beginner. The entire trap is made of lead pipe. The lead will require a great deal of handling. Therefore, care must be exercised in all operations to turn the trap out in a workmanlike manner.

Materials Needed

The materials needed to complete this job are: 10 inches of 4-inch 8-pound lead pipe; 18 inches of 11⁄2-inch light lead pipe; paste and paper, support, solder, and catch pan.

Tools Needed

The tools required for this job are: saw, rasp, bending irons, shave hook, bending spring, tap borer, dresser, ladle, drift plug, and wiping cloths.

Fig. 33.  Drum trap. Fig. 33. - Drum trap.

Preparing

Take the 10-inch piece of lead pipe and hold it in one hand, in the other hand take a pine dresser. Strike the lead pipe with the dresser. The pipe is struck about 2 inches from the end and is beaten evenly all around. The pipe is then struck nearer the end until finally the bore of the pipe is almost closed. This closed end should be rounding and symmetrical. To get this shape the pipe must be continually moved and turned. One side must not be forced in more than the other. If there are any dents in the pipe or part of the pipe is forced in too much it may be driven out as follows: Take an old piece of 1⁄2-inch lead pipe and round one end of it with a hammer; this can be used by hitting the inside of the closed end of the drum and forcing out the dents. The rounded end of the trap is not quite closed and a hole about 3⁄4 inch is left. This opening is closed by shaping the edges of it with the knife, making them smooth and beveled. Then a piece of lead is cut out of some scrap, the same shape as the hole and fitted into it. The top surface of this fitted piece should be a little lower than the surface of the pipe. Strike a circle, using the compasses, the center of the circle being the center of the inserted piece of lead. The lead inside of this circle is shaved clean with the shave hook, including the inserted piece. Paper is then pasted outside of the circle and should cover entirely the rest of the pipe. The inserted piece is wiped on the pipe as follows:

Wiping End

Stand the 4-in. pipe in a pan with the rounded end of the pipe up. Be sure that the inserted piece is fitted securely. The solder is now dropped on the paper and shaved portion of the pipe. Exercise considerable care not to burn a hole in the pipe. As the hot solder runs off, catch some of it and draw it back on the joint. When the solder can be manipulated freely and the pipe is hot, the joint can be wiped. The cloth is drawn across the joint, cleaning all the edges with one stroke. The joint should be shaped to complete the rounding surface of the pipe. The joint is comparatively easy and will not occupy much time. As soon as it is wiped, cover the solder with paper. This will preserve the freshness of the joint until all wiping is completed.