. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. but are additions that have become expedient, under somewhat different circumstances attendingthe use of the powerful currents derived from magneto- and dynamo-electric machines. If theaccounts were continued chronologically, there would follow a description of Duboscq and Foucault,in which clockwork was employed to distance the carbons. These will be presently referred to, butit is first necessary to point out that all complication is to be carefully avoided, and that a lamp tobe effective must need no sk
. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. but are additions that have become expedient, under somewhat different circumstances attendingthe use of the powerful currents derived from magneto- and dynamo-electric machines. If theaccounts were continued chronologically, there would follow a description of Duboscq and Foucault,in which clockwork was employed to distance the carbons. These will be presently referred to, butit is first necessary to point out that all complication is to be carefully avoided, and that a lamp tobe effective must need no skilled attendance, such as a clockwork movement would entail. Lamps in very general use are the Siemens and the Serrin. In the Alteneck-Siemens lamp,Fig. 1164, the position of tlie carbons is regulated by the weight of the upper carbon holder, whichtends to bring the carbons together. The carbon points are separated by a small electro-magneticmotor. The upper carrier is connected to the lower by rackwork and tooth wheels. When, byreason of the carbon points approaching too closely, th
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectenginee, bookyear1879
