. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . a relative l(jss, so that wc have 24 showing a gain and 34a loss. In the case of the rear truck 39 engines showed an in-crease of weight; 3 were normal and 16 showed a lossof weight. Where the jK)ints of su]>port show a loss of weight, itmay be accounted for, in part at least, by wear and tear, 158 RAILWAY AND LOCOMOTIVK ENGINEERING June, 1926 but an increase alxne the schedule can only be accountedfor by a change of adjustment or overweight in the newmachine. Fifty-eight is but a small pe
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . a relative l(jss, so that wc have 24 showing a gain and 34a loss. In the case of the rear truck 39 engines showed an in-crease of weight; 3 were normal and 16 showed a lossof weight. Where the jK)ints of su]>port show a loss of weight, itmay be accounted for, in part at least, by wear and tear, 158 RAILWAY AND LOCOMOTIVK ENGINEERING June, 1926 but an increase alxne the schedule can only be accountedfor by a change of adjustment or overweight in the newmachine. Fifty-eight is but a small percentage of all of theAtlantic (4-4-2) locomotives in the country, and it wouldbe unsafe to draw final conclusions from a survey of sosmall a number. l!ut from the data at hand it would. appear that there is a tendency of the weight on the fronttruck to increase at the expense of that on the front that the same tiling occurs with the rear truckrelatively to the rear drivers. This loss of driver weights may be serious. Their totalscheduled weights were lbs., yet we find, in anumber of cases, a loss of 14,000 lbs. and, in one case21,000 lbs. in weight on drivers. As these are percent and per cent of the scheduled weights, such aloss may well result in excessive slipping. It is impossible to analyze the causes of these changesfrom the information obtained from the diagrams alone:but the results are such as to be well worth watching. A similar survey was also made of seventeen ten-wheelers (4-6-0 type). These engines had cylinders 19 diameter with a piston stroke of 24 in., and weighed146,500 lbs. Of this weight 30,500 lbs. was upon thefront truck; 37,000 lbs. on the front pair of drivers;41,000 on the second, and on the rear p
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
