Scientific American, FEBRUARY 21, 1885.] 119 We will now briefly describe the actual construction of apparatus used by Mr. Phelps on the New York, New Haven, and Hartford Railway, over a section of that. road twelve miles in extent. terminus of the experimental line. The conductor or track wire,… … containing the conductor is brought up to with- trouble whatever in hearing the signals, as they Fig. 4—PHELPS’ NEW RECEIVING RELAY, come out clear and distinct, being readily un- in an inch or two of the intersecting rails, and the conductor, forsaking*its wooden protector derstood from the…
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