. Railway mechanical engineer . 913 1911 Builder American Amciican American Tractive effort, lb Total weight, lb ■ 429,000 405,000 400,000 Vkeigh- on drivers, lb 3SS,OnO 355,000 337,CX)0 Diameter drivers, in 57 57 56 56 Cylinder diameter and stroke, in. 23 & 35 23>^ & 37 22 8:35 22 5(35 X 32 X 32 X 32 x 32 Steam pressure, lb. per sq. 225 200 2O0 200Heating surface, total evap., sq. ft 5,443 4,935 5,003 Heatine surface, equivalent,* sq. ft 7,381 6,473 6,430 Orate area sq. ft Tractive effort X dia. driv
. Railway mechanical engineer . 913 1911 Builder American Amciican American Tractive effort, lb Total weight, lb ■ 429,000 405,000 400,000 Vkeigh- on drivers, lb 3SS,OnO 355,000 337,CX)0 Diameter drivers, in 57 57 56 56 Cylinder diameter and stroke, in. 23 & 35 23>^ & 37 22 8:35 22 5(35 X 32 X 32 X 32 x 32 Steam pressure, lb. per sq. 225 200 2O0 200Heating surface, total evap., sq. ft 5,443 4,935 5,003 Heatine surface, equivalent,* sq. ft 7,381 6,473 6,430 Orate area sq. ft Tractive effort X dia. drivers -h- equivalent heating heating surface -^ equivalent heatine surface,* per cent •Equivalent heating surface — total evaporative heating surface -f the superheating surface. are employed with both the high and low pressure valves are 12 in. in diameter and have a maximumtravel of 6 in. The valves for the low pressure cylinders are. Clearance Diagram for the Standard 2-6-6-2 Type Locomotive double ported while tliose for the high pressure cylindersare the same as are used on the 0-6-0 type switchers. The high pressure piston specifications call for eitherrolled or cast steel of dished section, while for the lowpressure pistons the center of which has a diameter of 30^4in., exclusive of the bull ring, cast steel only is gun iron bull rings and packing rings are used ilistribution is controlled by the Baker valve gear and theChambers back head type throttle. The locomotive is fittedwith a Lewis power reverse gear. The driving journals throughout have a diameter of 11 are 13 in. long. The driving are interchangeableon all journals, except that the crown brass for the mainjournals is finished with a clearance of 1/100 in. instead of1/32 in. The same driving box is also used onthe heavy Mountain type locomotive, with the exceptionof the main journals, and on
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
