Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 714
he line, so as to pull thethermometer towards the surface, the in-strument turns once on its centre, first bulbuppermost,and afterwards ixilb downwards.This causes the mercury, which was in theleft-hand column, first to pass into the di-lated syphon-bend at the top, and thence into the right-hand… … Fig. 318.-—iV<?^?r///j DeepSea Thermometer, generalarrano-emefit. RECORDING INSTRUMENTS. O63 its centre. A is the bulb ; B the outer coating or protecting cylinder; C is thespace of rarefied air, which is reduced if the outer casing be compressed; Dis a small glass plug, as in Ncgretti and…
Inventions
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