Electricity for everybody; its nature and uses explained (1895)
Atkinson, Philip · New York, The Century Co. · leaf 186
being thus interrupted, themagnetic action is so weakened that the upper carbondrops into contact with the lower one, renewing the maincurrent and magnetism instantly and relighting the lamp. The loose washer method, which has been used for il-lustration on account of its simplicity, has been… … 73. 71, it will be seen that the actionof the clutch is practically thesame as that of the washer. Double Carbon Lamp.— Onepair of carbons will last for six oreight hours; but when light is re-quired for a longer period withoutrenewal of carbons, a lamp withtwo pairs, like that shown in Fig.73, is…
Electricity
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