. American engineer and railroad journal . fall betweenHI and 20 per cent. The ll^ures. ld of rating has aroused us is, how toobtain the proper rating for the .lifferent engines on the variousDortions of the road. The piaclbal method naturally suggestsif-elf first; that is. try it for each class of engine on each crit-ical or controlling part of the division and keep on trying to seewhat can be pulled, till you reach the limit. While thismethod has been used on twenty-two of the lines reporting, believe that ivsults can generally be secured quicklyand satisfactorily by first produ


. American engineer and railroad journal . fall betweenHI and 20 per cent. The ll^ures. ld of rating has aroused us is, how toobtain the proper rating for the .lifferent engines on the variousDortions of the road. The piaclbal method naturally suggestsif-elf first; that is. try it for each class of engine on each crit-ical or controlling part of the division and keep on trying to seewhat can be pulled, till you reach the limit. While thismethod has been used on twenty-two of the lines reporting, believe that ivsults can generally be secured quicklyand satisfactorily by first producing the theoretical rating andthen checking these figures by actual trials under various con-ditions of weather, etc. Fourteen roads have handled the sub-. Walleable Iron Running Board Bracket. ., ., 1, , ^ . 1 , i i • ,1 iept in thi«? wav while six have been content with .i theoretical nails are partly pulled out, causing brakeraen to trip as well as J^^V ■, • ^ ^-^ rating alone, rendering the roofs liable to blow off. Mr. Ounu presents the We have stated above that it is our opinion that the theoreti- following claims for the device; ^al rating will be of great advantage in inaugurating tonnage t 1 1 41, rating, but to gain the greatest benefits from it it is necessaiy It provides a gafe walk for trainmen, it tends to hold the ^^^^^ ^ j^^ fairly accurate in defining the work for different loco-roofs secure bv preventing them from blowing off, it is of mal- motives and localities. We will now attempt to show how the, , , . ,.,,,., ^-u -u 1 „ rating may be determined in advance of the trials, or even theleable iron and will last longer than the car and saves expen- ,,r,mp!etlon of the road, provided the profile and alignment can


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering