Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 646
Fig. 43. Round Pattern, Type D. Scheeffer Watt-Meter Closed. Fig. 44. Round Pattern, Type D.Scheeffer Watt-meter Open. A very ingenious device is used for sensitive adjustment, and the follow-ing cut and description taken from the Companys catalogue is sufficientlyclear to indicate its use. … FlG. 45. Meter Core. Showing Shields for Sensitive Adjustment. There are two knurled posts, A and B, secured to the meter core by screwclamps as shown in the cut. These posts carry iron shields thatcan hemade to embrace more or less of the disk by turning the posts. When the iron piece or shield…
Electrical engineering
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