. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . tance box, Fig. 15, is interpolated in such a way that when the currentthrough the magnetic coil is broken on the up stroke it passes through the spools. This isto produce an audible distinction between the up anddown movement as manifested in the phone, the former being lighter thanthe latter, so as toprevent confusionthat otherwise wouldbe occasioned byoperators getting the? back-stroke. The diagram,Fig. 16, shows
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . tance box, Fig. 15, is interpolated in such a way that when the currentthrough the magnetic coil is broken on the up stroke it passes through the spools. This isto produce an audible distinction between the up anddown movement as manifested in the phone, the former being lighter thanthe latter, so as toprevent confusionthat otherwise wouldbe occasioned byoperators getting the? back-stroke. The diagram,Fig. 16, shows allthe instruments in place. All Morse keys and relays within the limits of a phonoples circuitare bridged, as represented, liya condenser, through whichpass the induced currents thatoperate the phones. It willbe readily seen that the mainline, which passes throughthe magnetic coil and throughthe phone, is never broken,the former being charged anddischarged by means of anextra circuit around it throughits key and the points of thetransmitter. The Cassagncs-MichclaStevo-Telegraph. — Amongthe various methods of in-creasing the number of wordswhich can be transmitted over. 14.—The for the transmission and
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
