Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 174
6iia. HYDRAULIC SPRINKLER HEAD.—The. levers of the toggle joint areheld in place by a strip of fusible alloy thatmelts at about 212 cleg, and allows the leversto fly open and release the water sprayvalve. Pressure on the valve is adjusted bythe screw and nut at the top. … 611b. MILK COOLING DE-VICE.—]^Iilk is fed from a tank overthe surface of a hollow copper pan,corrugated to retard its flow, whilecold water is circulated through thepan in the opposite direction.
Mechanical movements
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