Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 726
insertion of the case ; but the lower ring is in halves,one of which is fixed, and the otlicr opens out to receive the case, after which it closes, and is tightlyclamped. An eye at the top receives the sounding-line, and one at the bottom any requisite sinkingweights. All the delicate parts of this… … In using this instrument, it is thrown from the side of the vessel at successive times, first observingthe surface temperature, and then sinking it to a small depth, and again to one a little greater, and soon, till it can be decided that the stop hand indication belongs to the greatest depth…
Mechanical engineering · Mechanics · Engineering
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