movable, e.g. to an inoperative position; adjustable, e.g. self-adjusting

Full Title

Continuous combustion chambers using liquid or gaseous fuel > characterised by the air-flow or gas-flow configuration (reverse- flow combustion chambers F23R3/54; cyclone or vortex type combustion chambers F23R3/58) > with devices inside the flame tube or the combustion chamber to influence the air or gas flow > Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants > movable, e.g. to an inoperative position; adjustable, e.g. self-adjusting