Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 149
sent-STeei. OHSresLSree-L LC.AO ANTIMOrtr CO»POSlTlO/t … L£AO AflTIHOtlY Cornposirioti SEMI-STEeu Of* STEEL Spec/AL rton-ojRRosivE ^iPipe Plus lPiPEi Tap Massachusetts Standard Ammonia Safety Valve. make it a desirable commercial refrigerant, first, its low temperatureof evaporation (—28°F at atmospheric pressure), and second, its highlatent heat. Before…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
