Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co. · leaf 85
s is not desirable with the average castiron heating boiler, for the reason that it may cause too great a tem-perature difference at this level in view of the fact that the returningwater can be quite cold. However, with the arrangement as shown, it becomes necessaryto install a steam equalizing… … ReturnPipe. Fic. 3. and with as few turns as possible in order to eliminate friction, butwith such a pipe installed as shown water cannot be backed out <>t theboiler below the normal water level and the baneful effect of theinstallation of cheek-valves is thus done away with. J;or the…
Locomotives · Steam-boiler explosions
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![An illustration from Catalogue and price list of the Supply Department [serial] (1911)](https://img.insideoutlibrary.com/img/200/ia-cataloguepriceli00asso-15-12.webp)
