. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. o tap the coherer tube and shakethe filings in it. If at the moment in which these actions took place theelectric waves in the resonator had died away, this tap would restore thecoherer to its normal condition of practically infinite resistance, and a dotonly would be
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. o tap the coherer tube and shakethe filings in it. If at the moment in which these actions took place theelectric waves in the resonator had died away, this tap would restore thecoherer to its normal condition of practically infinite resistance, and a dotonly would be recorded on the tape of the Morse machine. If, however,the key of the transmitter were kept depressed, then waves would succeedeach other at very short intervals, so that the acquired conductivity ofthe coherer would only be momentarily destroyed by the tap of the bellhammer, and immediately re-established by the electric waves. Small choking coils, k^ k^—that is to say, coils wound so as to haveself-induction or electric inertia—are introduced between the cohererand the relay, their effect being to compel the greater part of the oscilla-tory current induced in the circuit by the electric waves to traverse thecoherer, instead of wasting the greater portion of its energy in the alterna-tive path afforded by the i8o ELECTRIC POWER AND DEVICES.
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Keywords: ., bookauthorhiscoxga, bookcentury1900, bookdecade1910, bookyear1910
