Stationary steam engines, simple and compound; especially as adapted to electric lighting purposes (1890)
Thurston, Robert Henry, 1839-1903 · New York, J. Wiley & sons · leaf 234
The simplicity of these instruments and their accuracy are importantrecommendations, while the assurance which they give against dangerousor costly accidents justifies fully the small expense of their purchase. An Alarm Gong is added to give notice of overpressure, and thus tosecure instant… … VIBRATING ALARM GONG AND BATTERIES.To be placed in Engine Room or elsewhere. The Alarms are arranged for low pressure, or for high-pressurelimit, as shall be ordered. These instruments, being absolutely automatic, give testimony that isnever doubted, and do their work with perfect certainty and…
Steam-engines
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