Incandescent electric lights . ductors with the lamp, as we have indi-cated above, are made by a lead wire (cutoff) which may melt and interrupt the 28 circuit in case a too great quantity ofcurrent should endanger the lamp. In these brackets, as in the threebranch chandeliers, represented in , keys have been introduced whichallow the extinction of the lamps separ-. Fig. 13. ately or together, without causing anyspark of the point of rupture or any dan-ger of fire. The movement of the key a,as shown in Fig. 12, breaks the contact bymeans of a. conical stopper which termi-nates the screw
Incandescent electric lights . ductors with the lamp, as we have indi-cated above, are made by a lead wire (cutoff) which may melt and interrupt the 28 circuit in case a too great quantity ofcurrent should endanger the lamp. In these brackets, as in the threebranch chandeliers, represented in , keys have been introduced whichallow the extinction of the lamps separ-. Fig. 13. ately or together, without causing anyspark of the point of rupture or any dan-ger of fire. The movement of the key a,as shown in Fig. 12, breaks the contact bymeans of a. conical stopper which termi-nates the screw of the key, and which,when separated from the two plates,through which the current passes whenthe stopper is in contact with them, :29 breaks the circuits at the points and ona surface of sufficient extent to greatlydiminish the spark at the point of rup-ture.
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Keywords: ., bookcentury1800, bookdecade1880, bookidincandescent, bookyear1882
