Incandescent electric lights . Fig. I. Fig. 2. less long. Their extremities, which areenlarged, are pressed in a kind of pincerwhich terminates the platinum conduct-ors, and which are soldered by an elec-trolytically deposited copper. Figs. 1, 2,3 12 and 4 represents the actual arrangementof these lamps. Their duration, from whatI have been assured, is long enough;. Fig. 3. however, they must wear out. Althoughmost of them may have served for 1,200hours, the question may be askedjwhethera lamp capable of deterioration may be 13 considered a practical thing; but if it isconsidered that this lam
Incandescent electric lights . Fig. I. Fig. 2. less long. Their extremities, which areenlarged, are pressed in a kind of pincerwhich terminates the platinum conduct-ors, and which are soldered by an elec-trolytically deposited copper. Figs. 1, 2,3 12 and 4 represents the actual arrangementof these lamps. Their duration, from whatI have been assured, is long enough;. Fig. 3. however, they must wear out. Althoughmost of them may have served for 1,200hours, the question may be askedjwhethera lamp capable of deterioration may be 13 considered a practical thing; but if it isconsidered that this lamp can be fur-nished for 30 cents, that the adjustment
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Keywords: ., bookcentury1800, bookdecade1880, bookidincandescent, bookyear1882
