involving an upper drum or headers mounted at the top of the combustion chamber

Full Title

Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically > built-up from water tubes grouped in panel form surrounding the combustion chamber, i.e. radiation boilers > involving an upper drum or headers mounted at the top of the combustion chamber

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

STEAM GENERATION

Subclass:

METHODS OF STEAM GENERATION; STEAM BOILERS