{HEAD ~ The method} comprising the steps of moving the parts on the belt into {TAIL ~ a chamber} of the furnace, heating the parts, igniting the unused combustible atmosphere above the parts, and allowing the atmosphere above the parts to escape through a vent in the chamber 
{ HEAD ~ The method } comprising the steps of moving the parts on the belt into { TAIL ~ a chamber } of the furnace , heating the parts , igniting the unused combustible atmosphere above the parts , and allowing the atmosphere above the parts to escape through a vent in the chamber
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH