The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 385
iameter and bound overthe first binding until about 2 inches is left, the end of which isinserted with the end of a leading-in wire into the same end ofa If-inch sleeve. Two turns of twist are given to complete 35<5 PRACTICAL TELEPHONE HANDBOOK the joint and the outer end is cut ofi as far as… … Fig. 354.—Single Terminating of 40-lb. Bronze Wire being wound in opposite directions round the bottom grooveinstead of being made into loops. Only a 36-inch length ofeach wire is needed beyond the centre of the insulator instead of40 inches, and the wire is doubled back at 11 instead of 13inches.…
Telephone
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