. Railway mechanical engineer . urface, firebox, including arch tubes 348 sq. ft. Heating surface, total 4,121 sq. ft. Superheater heating surface 966 sq. ft. heating surface 5,570 sq. ft. Grate area 703 sq. ft. Tender Tank Water bottom Frame Cast steel Weight 192,000 lb. Wheels, diameter 33 in. [ournals, diameter and length 6 in. by 11 in. Water capacity 10,000 gal. Coal capacity 16 tons total exaporative heating surface -)- ■Equivalent heating surfacelimes the superheating surface. STORAGE OF COAL BY RAILROADSDURING 1918* BY H. H. STOEKProfessor of Miaini Engioetring. Univers
. Railway mechanical engineer . urface, firebox, including arch tubes 348 sq. ft. Heating surface, total 4,121 sq. ft. Superheater heating surface 966 sq. ft. heating surface 5,570 sq. ft. Grate area 703 sq. ft. Tender Tank Water bottom Frame Cast steel Weight 192,000 lb. Wheels, diameter 33 in. [ournals, diameter and length 6 in. by 11 in. Water capacity 10,000 gal. Coal capacity 16 tons total exaporative heating surface -)- ■Equivalent heating surfacelimes the superheating surface. STORAGE OF COAL BY RAILROADSDURING 1918* BY H. H. STOEKProfessor of Miaini Engioetring. University of Illinois About two years ago the writer sent out a questionnaireto several hundred parties storing coal in quantities varyingfrom a few tons stored in the ordinary house-cellar to hun-dreds of thousands of tons as stored on the docks along theGreat Lakes and by some of the large industrial replies to this questionnaire were studied and a tentativeset of conclusions drawn up, and sent to the parties who had. —34-—^The Frame of the U. S. R. A. Standard Light 4-6-2 Type Locomotive Wheels iJriving Driving Driving Engine iingine Trailing Ti ailing diameter over tires journals, main, diameter and length 12 i joui nals, others, diameter and length 10 i liuck wheels, diameter truck, journals 6!2 Slyle Workin Outside Tubes, IlreboXj Firebox , ...69by 13by 12 in, truck wheels, 43 in truck, journals 9 in. by 14 in, Boiler Con. wag. lop g pressure 2O0 lb. per sq. in. diameter of first ring 78 in. number and outside diameter 216—2».i in. , length and width 1201^ in. by 84/i in. plates, thickness Tube and throat, y^ in.; others, H in. water space Front, 6 in.; others, 5 in. \ the original quoslionnarie, with the request thatthey be thoroughly criticized. As a result of these criticisms,a revised set of conclusions was drawn up and published inCircular 6 of the Engineering Experiment Station of theUniversity of Illinois. R
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