. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. s of the relay to vibrate continually. The lo^-alrecording circuits are so joined up to the armatures, as to be closed when the armatures are at reston the upper stops, and open when the armatures vibrate, for the r^ipidly intermitting currentscause the armatures to vibrate freely midway between both upper and lower stops. On depressingthe key A, contact is broken at r, the positive current ceases to flow and the armature to returns to its rest stop, completes the local circuit, and causes the r
. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. s of the relay to vibrate continually. The lo^-alrecording circuits are so joined up to the armatures, as to be closed when the armatures are at reston the upper stops, and open when the armatures vibrate, for the r^ipidly intermitting currentscause the armatures to vibrate freely midway between both upper and lower stops. On depressingthe key A, contact is broken at r, the positive current ceases to flow and the armature to returns to its rest stop, completes the local circuit, and causes the recorder A to signal. Similarly ELECTRICAL ENGINEERING. 533 the key B causes the recorder B to signal; and when both kejs act at once, both recorders respondtogether, eacli to its proper key. When sending two messages in contrary directions, each station must be able to send a messagowithout interfering with its own receiving instrument. Let the two stations be called respectivelyS and S. Only the station S is provided with a distributor, and it is of the form shown in Fig. 1122 fc:M
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectenginee, bookyear1879
