at the top and the bottom of the vertical heating flues

Full Title

Heating of coke ovens with combustible gases > Methods of heating ovens of the chamber oven type > by introducing the heating gas and air at various levels > at the top and the bottom of the vertical heating flues

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT

Subclass:

DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS