Heat sensitive abnormal condition detecting and indicating device and method
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Heat sensitive fault detecting and indicating system for watthour meter
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Manufacture of watt-hour meters with welded precise torquing
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Meter magnet with strip-wound current coil
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Box and mounting and connecting means for extremely heavy duty watt-hour meters
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Electronic teaching system
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Temperature-compensated magnetic bearings
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Self-contained watt-hour meters for exceedingly heavy loads
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Watt-hour meters with phasing plate phased after meter completion
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Watt-hour meter with shifting-reluctance accuracy adjustment
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Watt-hour meter with shifting screw as light load adjustment
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One piece meter current circuit
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Block interval demand register with geneva reset
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Lightning arrester with the frustoconical surface of the parallel electrodes being exposed toward each other at the narrow end of a diverging spark slot
