Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 18
ws the steam to es-cape, which, impinging against the bell H at top,produces the alarm required. In Dunns alarm forboilers, the falling of the water below the properlevel establishes by means of a battery a galvaniccurrent, and rings a bell or bells in any part of theestablishment in which it is… … 14 ALTIMETER. ALMOND-TREE. See Woods, varieties of.ALOES-WOOD. See Woods, varieties of ALTIMETER. Beatsons patent, for taking, measuring, and computing angles. Fig. 8 is a sideelevation of this instrument. A is a broad ring of brass, to one side or the back of which a telescope,C, is affixed in a…
Mechanical engineering
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