These increments of {TAIL ~ water}, when striking the peripheral portion 40 or the inside convex surface of {HEAD ~ bottom plate} 141, convert totally or partially to steam and this steam expands rapidly, passing through tube 28 or 128 to the nozzle header 16 and thence out of nozzles 17, being directed against the snow or ice or simply the outside surface of the window 
These increments of { TAIL ~ water } , when striking the peripheral portion 40 or the inside convex surface of { HEAD ~ bottom plate } 141 , convert totally or partially to steam and this steam expands rapidly , passing through tube 28 or 128 to the nozzle header 16 and thence out of nozzles 17 , being directed against the snow or ice or simply the outside surface of the window
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH