Many methods are in use for coupling lead pipe to pipes made of other material such as wrought

Combination Lead Pipe Coupling 272

Fig. 221.

Combination Lead Pipe Coupling 273

Fig. 222.

Combination Lead Pipe Coupling 274

Fig. 223.

Combination Lead Pipe Coupling 275

Fig. 224.

Combination Lead Pipe Coupling 276Combination Lead Pipe Coupling 277

Fig. 225.

Combination Lead Pipe Coupling 278Combination Lead Pipe Coupling 279

Fig. 226.

iron or brass, but all these methods have certain features which are common to all, an example of such a coupling is shown in Pig. 227.

The casting A is threaded on the outside and provided with a female threaded coupling part C. A flanged bushing D is placed over the pipe

Combination Lead Pipe Coupling 280

Fig. 227.

B and inside the shouldered opening of C. The lower portion of the casting is of cone shape to fit the inside of the pipe B, so that when the coupling C is tightened the lead pipe is expanded as shown in the drawing and a tight joint thereby made.