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John Westmoreland Record
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Individual
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Publication of GB191226241ApublicationCriticalpatent/GB191226241A/en
26,241. Record, J. W. Nov. 15. Magnets.-A magnet for an electric meter, has a ring-shaped pole-piece N threading the moving coil B, and a pole-piece S with a gap corresponding to the neck of the pole-ring, to restrict the flux to the range of the coil. The pole-piece S may have the same form and dimensions as the pole-ring, or it may be of other form and of larger'size, as shown. The gap may be filled-in with non-magnetic material. Two similar pole-pieces may be mounted one on either side of the pole-ring. A double magnet may be used.
GB191226241D1912-11-151912-11-15Improvements in Moving Coil Electrical Measuring and like Instruments.
ExpiredGB191226241A
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