Gif of LNWR Emblem
London & North Western Railway Society
Glossary for the LNWR Society

Glossary Results for Word "Smoke Box"

Smoke Box A cylindrical drum on the front of a steam-locomotive boiler, into which the hot gases from the boiler tubesExplain 'Tubes' pass. By routing the exhaust steam from the cylinders through a blast pipeExplain 'Blast Pipe' within the smoke-box and directing the resulting jet out the chimney a partial vacuum is created in the smoke-box, and by making it as large as possible a more even draught is created over the area of the tubes. This vacuum draws the hot gases from the fire through the boiler tubes thus heating the boiler water more rapidly and producing more steam to replace that used.