(under the class definition) Subject matter comprising miscellaneous braces and stays and their general arrangement with the boiler walls not included in the definitions of other subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
83, for supports for fire tubes for horizontal fire tube boilers.
360+, for braces and stays for headers and header structure.
496, for the general arrangement of stays and the structure of crown sheets.
SEE OR SEARCH CLASS 411, Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener,
367, and 370, respectively, for a threaded fastener and nut having a stay bolt spacer sleeve or having a stay bolt bearing washer; and subclasses 379+ for a threaded stay bolt, per se; and subclass 505 for an unthreaded stay bolt, per se.
