Railway and Locomotive Engineering . nd recombed. The devicehas been made standard for all equip-ments, consisting of two 954-inch pumpsor a single SJ/a-inch C cross compoundunit, the pipe opening being 2J^ inches,which develops into two 1^-inch pipes,one to each pump for the double equip-ment. Great care has been exercised inthe detail design of the castings; for in-stance, the covers are flanged and fittedover rubber packing rings in order toeliminate any possibility of moisturereaching the working area of the strainer;again, the body of the strainer casting isextended down 2 inches, this to
Railway and Locomotive Engineering . nd recombed. The devicehas been made standard for all equip-ments, consisting of two 954-inch pumpsor a single SJ/a-inch C cross compoundunit, the pipe opening being 2J^ inches,which develops into two 1^-inch pipes,one to each pump for the double equip-ment. Great care has been exercised inthe detail design of the castings; for in-stance, the covers are flanged and fittedover rubber packing rings in order toeliminate any possibility of moisturereaching the working area of the strainer;again, the body of the strainer casting isextended down 2 inches, this to minimizethe danger of condensation, snow orwater, from being drawn up against thesurface of the netting. Standard frontend netting, 2^ by 2^4 mesh. No. 9, G. wire, is used. The device has been developed by aseries of experiments conducted underthe superintendence of Mr. S. J. Hun-gerford, superintendent of rolling stock,and Mr. William Clegg, general air brakeinspector, and its general adoption is be-ing rapidly proceeded with. VIEW OF DETAILS OF AIR PUMP STRAINER AND COVER FOR LOCOMOTIVES. It is always interesting to observe inthe pages of Railway and LocomotiveEngineering the thorough presentationthat is made in all that is of interest inthe development of the modern loco-motive, and which continues tu be such adistinctive feature in the pages of yourpopular journal. In your last issue thesubject of Industrial locomotives wasfinely presented, and it occurs to me thata few added words would be in place atthis time, as the class of locomotives re-ferred to and the involved problem oftheir maintenance is a subject that hasbeen brought into the limelight lately bysome new rules of the Intcr>tate Com-merce Commission which were promul-gated to go into effect January 1, 1916. The new rules have to do with the in-spection and testing of steam Icicomotives, Industrial Locomotives By J. CROW TAYLOR, Louisville, Ky. tenders, etc., and while the order pri-marily applies only to
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