The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 386
Fig. 355.—Double Terminating of40-lb. Bronze Wire AERIAL LINE CONSTRUCTION 357 then be tightly and closely wrapped round the two for adistance of 2 inches, the end (or nib) of the line wire beingturned outward, and the binder continued for five or six turnsalong the main wire. The end of the line… … Fig. 356.—Single Terminating of 100-lb. Copper Wire back so as to form a loop of about 2 inches diameter andfinished off as with the bronze wire joint, a lf-inch or 2-inchsleeve and a packing tube being used to complete the joint,which is shown in Fig. 356.Packing Tubes.—These are soft copper…
Telephone
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