offers In cases where it is desired to connect a number of boilers great resistance to the or tanks to one bell, a device not unlike a hotel annunciator passage of the electri- is used (Fig. 2). The bell rings at the proper time, and the cal current, and is con- needle point shows the location of… … water whee] that turns the electric machine. By the same our system of the stream of November meteors, and sup- SHAW’S PRESSURE ANNUNCIATOR. means Dr. Werner Siemens works a locomotive that carried posed the perturbation to have occurred in the year 126 of This appliance is adapted to all kinds of…
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