Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 173
RIC LIGHT. There is one more ingenious contrivance in the Edison meterdesigned to prevent the inconvenience occasioned by a frozengas meter. In cases where the meter is likely to be exposed toa temperature at which the liquid would freeze, an ordinaryEdison lamp is placed within the meter case and… … Fig. 80. tact and light the lamp. As soon as the temperature has risensufficiently the contact is automatically broken and the light isextinguished. These phenomena are repeated as often as thechange in temperature takes place. Another form of meter (fig. 80) has been devised by Mr. Edi-son, which…
Electrical engineering
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