Show Cars Quickly Cleaned After Arter passing through most tunnels trains are usually dirtier than they the were Vere when they entered but exactly the reverse e Is true of a n passage over one of the railroad lines iii In France A After fter going through h It says P Popular Mechanics Magazine every pry car Is brush Crushed brushed and vacuum cleaned saving the time and labor required for scrubbing scrub bing with hand hond Implements The tunel tunel tun tun- el ei Is an nn archway which Is lined with brushes nn and vacuum cleaning attach attachments ments As the train Is pulled slowly along the polishing and cleaning apparatus apparatus ap ap- ap functions automatically andIn and In doing so reaches almost every ery part of the exterior of the cars |