Locomotive text for engineers and firemen; a complete treatise on the engine, electric head-light and standard code of train rules (1908)
National correspondence school of railroading, Chicago. [from old catalog] · [Chicago] · leaf 235
BREAKDOWNS. 225 on top of the middle driving box, the back driverrun down, the middle driver run on a wedge, ablock placed on the front driving box and as much block-ing as possible placed on the back driving box, or if theback driver has a driving box equalizer, blocking shouldbe placed between…
Locomotives
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
