Heating and ventilating buildings : a manual for heating engineers and architects . Fig. 118.—Root Boiler. duced in the top drums ; in the Hogan boiler, into a specialheater and purifier arranged as a part of the downward Fig. 119.—Stirling Boiler. The Harrison boiler consists of an aggregation of spheresof cast iron or steel connected by necks, forming what is to beconsidered rather as a sectional, than a water-tube boiler. These STEAM-HE A TING BO JLEAS.— HO T- WA TEE HE A TEES. l6- spheres are held in place by bolts, which will stretch and actas safety-valves in case of exces
Heating and ventilating buildings : a manual for heating engineers and architects . Fig. 118.—Root Boiler. duced in the top drums ; in the Hogan boiler, into a specialheater and purifier arranged as a part of the downward Fig. 119.—Stirling Boiler. The Harrison boiler consists of an aggregation of spheresof cast iron or steel connected by necks, forming what is to beconsidered rather as a sectional, than a water-tube boiler. These STEAM-HE A TING BO JLEAS.— HO T- WA TEE HE A TEES. l6- spheres are held in place by bolts, which will stretch and actas safety-valves in case of excessive pressure. In addition to the water-tube boilers for power purposeswhich have been mentioned here, there are many others whichcannot be described in the space at our command, but ofwhich we may name the National, Campbell & Zell, andthe Caldwell as worthy of notice. All the water-tube boilers are provided with mud-drums,which are frequently cast-iron cylinders removed from the circu-
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1910
