. Railway mechanical engineer . on and steel amounted to 27,428 tons as com-pared with 76,125 tons in February, 1916, and a monthlyaverage for the year of 72,740 tons. Iron ore imports wereconsiderably greater than for tlie same month a year ago, theamount being 507,560 tons this year and 403,973 tons lastyear. August. 1917 RAILWAY MECHANICAL ENGINEER 445 SIDE BEARING LOCATION* BY LEWIS K. SILLCOXMechanical Engineer, Illinois Central One of tlie refinements in the design of the average freighttruck whicli seems to seldom receive definite attention andfrom the tendency of practice followed in c
. Railway mechanical engineer . on and steel amounted to 27,428 tons as com-pared with 76,125 tons in February, 1916, and a monthlyaverage for the year of 72,740 tons. Iron ore imports wereconsiderably greater than for tlie same month a year ago, theamount being 507,560 tons this year and 403,973 tons lastyear. August. 1917 RAILWAY MECHANICAL ENGINEER 445 SIDE BEARING LOCATION* BY LEWIS K. SILLCOXMechanical Engineer, Illinois Central One of tlie refinements in the design of the average freighttruck whicli seems to seldom receive definite attention andfrom the tendency of practice followed in certain sections ofthe countrj, it would appear as being entirely misunderstood,is the matter of the proper location of side bearings. Thereal truth of the matter has been forced on some roadsthrough their experience with the derailment of locomotivetenders and it is made a live issue in this class of equipmentprincipally because there is- more liability for obtaining ahigher center of gravity than is possible in the case of the. ( Supper ffor Wheel U- ( TSupporffor Wheel Fig. 1 usual freight car; the high center of gravity causing a greattendency for the equipment to roll dangerously. There is,generally speaking, only one remedy for such cases and thatis to decrease the distance between the centers of the sidebearings and this has been successful in eliminating thedifficulty mentioned in most cases. Derailments occurring in the case of freight equipmentcars are so few considering the total number of cars handledthat we are often led to believe that the location of the sidebearings has nothing to do with the case. The raised outerrail of curved track is illustrative of track out of line, espe-cially with respect to slow moving equipment. The sameconditions may prevail at any point where the relative ele-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
