. Railway mechanical engineer . fectdemonstrated by actual operation so that it may be clearlyshown why it is necessary to admit air above the fire. Thestudent fireman should also be instructed as far as possible inthe judging of the temperature of the firebox by the appear-ance of the fire; also, considerable benefit may be obtained bygiving lectures to the enginemen on combustion, showing stere-opticon views which will not only interest the men, but givethem something definite to keep in their minds. Above all,both the road foreman of engines and the engineer should co-operate with the firem
. Railway mechanical engineer . fectdemonstrated by actual operation so that it may be clearlyshown why it is necessary to admit air above the fire. Thestudent fireman should also be instructed as far as possible inthe judging of the temperature of the firebox by the appear-ance of the fire; also, considerable benefit may be obtained bygiving lectures to the enginemen on combustion, showing stere-opticon views which will not only interest the men, but givethem something definite to keep in their minds. Above all,both the road foreman of engines and the engineer should co-operate with the fireman so that he will realize that interestis being taken in his welfare. GAGE FOR PILOT COUPLER BY H. Atlantic ::. SPICER Coast Line, Waycr ng Foreman. Atlantic Coast Line, Waycross, Ga A coupler gage which is very convenient for gaging the heightof pilot couplers is shown in the accompanying drawing. Thegage may be made from ^ in. or % in. by 1 in. common iron,and the stem graduated in half-inches beginning at 32 in. and —363S. Device for Gaging the Height of Pilot Couplers continuing upward. I he circular shape of the base will permitof its being used iiver the nose of the pilot. CoLE-ScoviLLE Truck.—In the description of a 2-10-2 type lo-comotive recently built by the Baldwin Locomotive Works forthe Erie Railroad, which appeared on page 158 of our April issue,it was stated that the locomotive was equipped with the Coletrailing truck. Our attention has been called to the fact thatthe correct name of this truck, which is of the outside with a hinged or floating yoke, is the Cole-Scoville truck. M.\CHiNiNG C.\ST Iron.—To overcome tool trouble in ma-chining small gray-iron castings, an annealing process is often ef-fective. A process claimed to accomplish excellent results is toI)ack the castings in cast-iron chips (with some broken charcoalto make a reducing atmosphere to prevent scaling) in ordinaryannealing boxes. The castings are then heated to a good redhea
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
