US PATENT SUBCLASS 122 / 291
.~.~.~.~ 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 bridge wall {1}
290  DF  .~.~.~ Front and rear header {4}
291.~.~.~.~ Horizontal-longitudinal drum {3}
292  DF  .~.~.~.~.~> Firebox tube
293  DF  .~.~.~.~.~> Longitudinal water baffle
294  DF  .~.~.~.~.~> Water wall

DEFINITION

Classification: 122/291

(under subclass 290) Devices in which the drums are horizontally and longitudinally posited and are elevated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

104, 268, 295, 472, and 473, for allied art.

SEE OR SEARCH CLASS

110, Furnaces,

98, for baffles in furnaces of water tube boilers.