STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING; OR PREVENTING; FOG IN GENERAL; CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
Methods or apparatus for removing ice or snow from railway tracks, e.g. using snow-ploughs; ; Devices for dislodging snow or ice which are carried or propelled by tramway vehicles; ; ; Moving or removing ballast
by application of heat,; e.g. by means of heated clearing instruments, melting in situ; ;; Clearing devices which melt the dislodged snow; Clearing exclusively by means of rays or streams or gas or stream, or by suction
