Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 130
n observed if the mercury in the gage had been ice-cold. The tube V, which connected the manometer to the tube containing thewater whose vapor pressure was to be determined, was wound with an elec-trically-heated spiral of wire, from the point where it left the manometer caseup to the point where… … 124 THE LOCOMOTIVE. [October, the sighting-collars on the mercury-tubes could be seen. It was found that thisarrangement gave a higher degree of accuracy than could be had by takingdirect observations of the mercury columns by means of a cathetometer,through windows damp with acetone. All the…
Locomotives · Steam-boiler explosions
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