Submarine telegraphs; their history, construction, and working. Founded in part on Wèunschendorff's 'Traitâe de tâelegraphie sous-marine' and compiled from authoritative and exclusive sources (1898)
Bright, Charles, 1863-1937 · London, C. Lockwood and son · leaf 757
stance coils in U,„ at least half tlie total quantit)- of electricity passes in the form of current through the recorder. The two reunited currents now go to terminal No. i, thence through the contact piece, left-hand spring, and terminal No. 5 to the mirror receiver G„, and so to earth. This… … Fig. 95. — Recorder Connections with Dickenson's Key. On changing to the sending position by turning over the handle v, we see that, at the instant when the three springs are simultaneously pressing on the contact piece, the cable is in communication with the earth through the condenser C, and any…
Cables, Submarine
Internet Archive · Northeastern University, Snell Library · Public domain (published before 1931). Free to use for anything.