The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 388
d for two turns ;they are then once more passed round the insulator, andfinally whipped round the line wire for a further seven oreight turns, and cut off close. Care should be taken not tobind in so tightly as to put a sharp bend in the line wire.Fig. 359 shows the joint when completed. AERIAL… … HHfHflfS to ^^WNlNf>piiitMMp^Vni8y!:||| WWQm Fig. 359.—Binding Line at each end is used for binding, the line wire being first wrappedwith a separate length of tape. The Britannia Joint is used when two copper wires are tobe joined together without a sleeve. Fig. 360 shows how this Fig.…
Telephone
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
