ed, steain enters this pipe,and the water in the globe, low the pipe, B—called in this instance the “alarm pipe “— The instruments we illustrate and describe have been tested, C, descends by its own gravity to the boiler. The counter. the globe rising closes the circuit maker and breaker, (, of and… … At the Fair of the American Institr’s, where they are now through the wires, H and I, setting in motion the electric globe. The lever oscillates to the original position operating on exhibition, they atiract much attcntiua and faverable through the bell-craok, 4, to open the vaive in the pipe, F,…
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