gest being un- states that the intensity of the kext acting upon the latter derneath in each tier; by this means, it is believed, the may be regulated ; and in boilers having low fire space, more €ntire substance carried up by the draft will be more effec- room can be obtained for the operations of… … being intensely heated, the smoke, gases, etc., coming in con- through the cold water near the bottom,thence return upwards ly sockets let into the walls of the fire box and the crown and enter the direct flue, C. At Eis adamper in the latter, by sheet, in order to increase the heating surface, and…
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