US PATENT SUBCLASS 122 / 298
.~.~.~.~ Horizontal-longitudinal drum


Current as of: June, 1999
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122 /   HD   LIQUID HEATERS AND VAPORIZERS

235.11  DF  WATER TUBE {52}
*  DD  .~ Rearwardly declined {3}
*  DD  .~.~ Over firebox {1}
*  DD  .~.~.~ Front and rear header {3}
298.~.~.~.~ Horizontal-longitudinal drum


DEFINITION

Classification: 122/298

(under subclass 235) Devices having banks of water tubes declined rearwardly over the firebox, in communication with front and rear headers, which are in turn in communication, directly or indirectly, with one or more horizontally and longitudinally fixedly positioned drums above the tubes.