F22B13/00—Steam boilers of fire-box type, i.e. boilers where both combustion chambers and subsequent flues or fire tubes are arranged within the boiler body
F22B13/06—Locomobile, traction-engine, steam-roller, or locomotive boilers
F22B13/065—Combination of low- and high-pressure locomotive boilers
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Control Of Steam Boilers And Waste-Gas Boilers
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Dispositif de retenue de liquide dans une canalisation sensiblement horizontale présentant une extrémité ouverte lorsque, le débit du liquide descend en-dessous d'un seuil donné