Preparing the Lead.—The ends of the lead pipe must be squared with the rasp. All kinks and dents are taken out by using the drift plug and driving it through the pipe. Take a piece of smooth pine stick and start to beat in the end of the lead pipe to fit the brass ferrule. The pipe should be beaten in starting about 3⁄4 inches from the end. It should be beaten in very slowly until it fits the ferrule. The pipe is held in the hand all the time and considerable time should be spent on this as it is the first time the beating in of lead pipe has been called for. The knack of doing this comes only by slow and continued practice. The lead must be "humored" into shape and not "driven" into shape. The end of the pipe is tapered still more by rasping off the end. About 3⁄4 inch should extend into the brass ferrule. With the bending irons, the lead extending into the brass ferrule is beaten against the inside wall of the ferrule. A good way to do this is to wedge the lead pipe in as much as possible at first, then lay the work flat on the bench, in which position it is more easily worked. The sketch should be thoroughly studied and each notation be perfectly understood, before proceeding with the work. Now that the lead pipe is perfectly fitted into place, it is prepared for wiping. The joint overall will be 21⁄2 inches. As we have already allowed 11⁄4 inches on the brass ferrule for the joint, the lead will have to be cleaned that much more. With the shave hook, shave the end of the pipe that has been fitted into the brass ferrule. A space about 4 inches should be cleaned. This will give a cleaned surface free from dirt and grease for the paste and paper to adhere to. Next paste the paper in place. The lead pipe can be entirely covered, or 3 or 4 inches only, above the 11⁄4 inches allowed for the joint. The space between the paper on the brass and the paper on the lead should now be 21⁄2 inches. The paste and paper should now be allowed to dry.
Supporting the Pipe.—This joint is wiped with the ferrule down on the bench. A flat pan is laid on the bench and the ferrule stood upon it. A weight on top of the lead pipe is all that is necessary. If this does not make the pipe rigid enough for the beginner, then a support similar to the round vertical joint support can be used. The beginner is advised, however, to practice the wiping of this joint with only the weight to hold it in position. The beginner will then be required to wipe the joint while the solder is hot, when it does not require a heavy pressure against the solder to wipe it in shape. These wiped joints should be supported in place near the furnace that heats the solder so that the solder will be handy for wiping.
Wiping.—Wiping this joint brings in some of the methods of the round vertical joint. If that joint was thoroughly mastered, this joint will be wiped considerably more easily. The ladle is held in the right hand and the solder splashed on the joint. The catch cloth is held in the left hand and some of the solder is caught and brought up on the top edge. The top edge cools quickly as all the hot solder runs down to the bottom edge and into the pan. As the solder accumulates on the bottom edge, it is drawn up on the top edge, and in this manner the top edge is kept hot. When the solder can be worked freely around the pipe and the edges are hot, the joint is ready to wipe. The ladle is laid down and the wiping cloth is taken in the right hand and the top edge of the joint cleaned on one side. Then the wiping cloth is changed to the left hand and the other side of the top edge is cleaned. Holding the cloth in one hand with the index and the third fingers spread to the outside corners of the cloth, the cloth is passed around the joint quickly. To get an even and symmetrical joint, it is necessary to make two or three passes around the joint holding the cloth first in the right and then in the left hand. The free hand is used to steady the work. This joint should be wiped very slim to allow room for the caulking irons to pass by it and get into the hub of the pipe. Constant wiping on the brass ferrule will result in the tinning on the brass ferrule coming off. The ferrule will look black when this happens and will thus be recognized. The wiping should then be stopped and the ferrule filed and tinned in the same manner as it was done at first.
Points to Remember.—
- First, material—6 inches of 2-inch light lead pipe and one 2-inch brass ferrule.
- Second, tin ferrule, using soldering iron.
- Third, use a soft pine stick for a dresser.
- Fourth, fit the lead into the ferrule.
- Fifth, clean and paper the lead.
- Sixth, secure the pipe into position.
- Seventh, using the catch cloth and ladle, splash solder on the joint.
- Eighth, keep the top edge covered with solder.
- Ninth, wipe the top edge first.
- Tenth, shape and finish wiping with a few strokes.
- Eleventh, tools used.
- Twelfth, wipe a slim joint.
- Thirteenth, steady the work with the free hand.
- Fourteenth, re-tin the ferrule, if necessary.
FOUR-INCH BRASS FERRULE
The 4-inch brass ferrule joint is the same as the 2-inch, except for size. The materials needed for this joint are 6 inches of 4-inch, 8-pound lead pipe, and one 4-inch brass ferrule, one full pot of solder, some paste and paper, rosin, and 1⁄2 and 1⁄2 solder.
Tools Necessary.—The tools required for this joint are as follows: saw, rasp, file, ladle, soldering iron, dresser, bending irons, shave hook, and wiping cloths.
Preparation.—Lead Pipe.—With the saw cut off 6 inches of 4-inch lead pipe. This pipe comes in lengths and should be for this work about 8 pounds to the foot in weight. The pipe may be dented badly, but these dents can be taken out as follows: Take a piece of 2-inch iron pipe and put it in a vise. The lead pipe can be slipped over this iron pipe and any dents taken out easily by beating with the dresser. One end of the lead pipe is beaten with the dresser until it fits into the ferrule. The end is then rasped a little. Then, after the brass ferrule has been tinned, the pipe is fitted into it and beaten out against the inside wall of the brass ferrule and a tight joint is made. The lead is next cleaned with the shave hook and paper is pasted on as explained under the 2-inch brass ferrule, the description of which should now be read over.