Incandescent electric lights . ead wire in the branch circuit, shownat the bottom of the figure, and which,by its fusion, interrupts the circuit. Thisis what is called in America a cut off;1and in this way it prevents box is then hermetically closed andcovered with an insulating coating. Inthe figure the branch wires are showndouble, but it is evident that they couldb e single. We said that all arrangements hadbeen made to make the system a perfectlypractical one, and of that we will soon beable to judge. Let us examine first howthe lamp supports and the lamps them-selves are
Incandescent electric lights . ead wire in the branch circuit, shownat the bottom of the figure, and which,by its fusion, interrupts the circuit. Thisis what is called in America a cut off;1and in this way it prevents box is then hermetically closed andcovered with an insulating coating. Inthe figure the branch wires are showndouble, but it is evident that they couldb e single. We said that all arrangements hadbeen made to make the system a perfectlypractical one, and of that we will soon beable to judge. Let us examine first howthe lamp supports and the lamps them-selves are disposed. As has been seen,they are formed of glass globes of ovoidform, cemented into copper sleeves bymeans of plaster and screwed into cylin-drical cavities terminating the are a kind of arm which can beadapted to brackets or chandeliers, or bearranged around the walls. In the lastcase, the arm, as is shown in Fig 11, carrytwo articulations, A and B, and commuta-tions are made by two plates of the hino-es 26. 27 which are insulated, and in whose circu-lar part two springs press, as seen inFigs. 12 and 13. Connections of the con-
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Keywords: ., bookcentury1800, bookdecade1880, bookidincandescent, bookyear1882
