n the usual manner . This arrangement has now be - Fig . 7 . — Self - contained Tubulär Boiler . ^ - come obsolete . A , Shell , b , Fire - box . c , Tubes . d , Smoke - box . Another form exten - e , Fire - door . sively used for general purposes is the vertical type . Such boilers are made… … , Fig . 9 . Fig . 10 . Vertical Dome Boiler . Vertical Tubulär Boiler . Vertical Return Boiler . some steam generators of this kind are made very lofty , fitted with an internal cone fire - box , and arranged in communication with the waste heat from puddling and other furnaces , & c . , and others…
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