. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . in Europe,as the following dimensions will show: Dudgeons Hydraulic publication of an elegant newcatalogue illustrating the hydraulic jackas manufactured by R. Dudgeon, NewYork, recalls the original invention ofthe lifting apparatus operated by thepressure of a liquid under the action of aforce pump. Mr. Dudgeon was workingas a machinist on a Southern road overfifty years ago when screw jacks wereused in hoisting locomotives and otherheavy material. Mr. Dudgeon was tiredof the jack s
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . in Europe,as the following dimensions will show: Dudgeons Hydraulic publication of an elegant newcatalogue illustrating the hydraulic jackas manufactured by R. Dudgeon, NewYork, recalls the original invention ofthe lifting apparatus operated by thepressure of a liquid under the action of aforce pump. Mr. Dudgeon was workingas a machinist on a Southern road overfifty years ago when screw jacks wereused in hoisting locomotives and otherheavy material. Mr. Dudgeon was tiredof the jack screw and, knowing some-thing of hydrostatics, he conceived theidea of the hydraulic jack. The difficul-ties of introducing even the most meri-torious invention were much greater atthat time than they are to-day. visit to Europe is a fine illus-tration. After securing his Britislipatents he discovered that the hy-draulic jack was being manufacturedby a firm of whom he knew noth-ing. At that time Mr. Dudgeon couldnot afford to engage in prolonged legalcontroversies and so he returned to. 4-6-2 EXPRESS ENGINE FOR THE PARIS-ORLEANS RAILWAY. H. P. cylinders, diam. i5Ms ins., stroke25J4 ins.; 1. p. cylinders, diam. 25J4 ins.,stroke 25J/2 ins.; diam. of wheels, bogie3 ft. i$4 ins.; coupled drivers 6 ft. Y^in., trailing 3 ft. 9J4 ins.; wheel base,bogie 7 ft. 6% ins., coupled 12 ft. g]/i ins.,total 34 ft. 5^4 ins.; boiler, diam. ofbarrel 5 ft. 6% ins., working pressure 227lbs. per sq. in.; height of centre aboverails 9 ft. 3% ins., containing 261 tubes19 ft. 4l4 ins. long by 2 ins. diam.; heat-ing surface, firebox 165:44 sq. ft., tubes2, sq. ft, total 2, sq. ft.;grate area, 46 sq. ft. The total weightof the engine in working order is 89tons, of which 53 tons are on the driv-ing wheels, and about 21 tons on thebogie wheels. The usual continentalrevolution counter is attached by a shortrod to the crank pin of the rear interesting comparison of this en-gi
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
