Identifier: railwaymechanica95newy (find matches)
Title: Railway mechanical engineer
Year: 1916 (1910s)
Authors:
Subjects: Railroad engineering Engineering Railroads Railroad cars
Publisher: New York, N.Y. : Simmons-Boardman Pub. Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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Mallet Type Locomotives Used Either as Road Engine or Helper 679 680 RAILWAY MECHANICAL ENGINEER Vol. 95, No. 11 heavy. On the Seattle division they are used as road engines, in. by 96% in., with combustion chamber 56 in. long, tubes handling 2,400 tons between Auburn and Lester, the grade 24 ft. long, brick arches and superheaters,being uniformly 1.0 per cent. Helpers are used from Lester „. , _~ . „ . , to the summit of the Cascade Mountains. These locomotives have a rated tractive effort of 105,100 These locomotives are of a new design and resemble closely lb. operated simple and 87,600 lb. operated compound. They those ordered by the U. S. R. A. Both designs are of the
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£8.000 Lb. 50,400 56,000 S\,W0 50,500-76 51.500 56.900 5Z.I00 51,500L.-35»J<-—76»—J<—G0-—J(<—60-*-,<j*-—60—J^-SS-—^.— 6S-—Jp—W—-^---60?--j<---6fr---i<---W!--J!<--4e!-4<-384^-- ;< ISO- -H j<- ISVi -H Y 400-— *; L 55zi J k 44 H ._... WlUf- Side Elevations of Pacific, Mikado and Mallet Types for the Northern Pacific have a total weight of_483,000 lb. exclusive of the tender, ofwhich 419,500 lb. is on the drivers. The high pressurecylinders are 26 in. by 30 in., the low pressure cylinders 40in. by 30 in., and the driving wheels are 57 in. in diameter.The boilers are of the conical connection type, firebox 126J/6 same rated tractive effort, have the same size cylinders, driv-ing wheels and wheel base and the boilers are similar. Theyhave 25 in. by 28 in. cylinders, 51 in. wheels, weigh 217,000lb., a wheel base of 15 ft. and are designed to operate on 19 deg. curves. November, 1921 RAILWAY MECHANICAL ENGINEER 681 Details and Special

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