Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 724
ERICAN TELEPHONE PRACTICE. In Fig. 506 is shown the method of building up the banks ofcontacts, a complete bank being shown in one view of this figure,and a single row of multiple contacts in the other. The con-tacts in these banks are clamped between layers of fibre, and boltedtogether as shown,… … FIG. 507.-AUTOMATIC TELEPHONE. The only part of this that is of special interest is the impulse trans-mitting device, of which a front view is shown in Fig. 508, a rearview in Fig. 509, and a side view in Fig. 510. The dial, shownmost clearly in Fig. 508, is mounted on the front of the…
Telephone
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