US PATENT SUBCLASS 122 / 191
.~.~ Beyond bridge wall

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


122 /   HD   LIQUID HEATERS AND VAPORIZERS

*  DD  HORIZONTAL CYLINDER {6}
*  DD  .~ Subjacent fire tube {1}
191.~.~ Beyond bridge wall

DEFINITION

Classification: 122/191

(under the class definition) Horizontal cylindrical boilers having subsidiary fire tube section of the boiler beyond the bridge wall. The fire tubes may be either vertical or horizontal, and if horizontal may extend either longitudinally or transversely of the boiler.

SEE OR SEARCH THIS CLASS, SUBCLASS:

56, 81 and 85+, for closely allied structure.