Railway and Locomotive Engineering . ion. A glance at the diagrammatic view ofthe valve in emergency position will show Special Fifty-Four Air CompressorStrainer. Tlie \\ estinghouse Air Brake Co. hasdeveloped a new type of air pumpstrainer known as the Fifty-Four de-rived from the fact that the suction areais approximately fifty-four inches. .\ circular notice explains that with thelarge volume of air drawn into thecompressors, especially the large capacitycompressors commonly used, more or lessforeign matter enters the air cylinderswhen engines arc standing over ash pitsor when operating thr
Railway and Locomotive Engineering . ion. A glance at the diagrammatic view ofthe valve in emergency position will show Special Fifty-Four Air CompressorStrainer. Tlie \\ estinghouse Air Brake Co. hasdeveloped a new type of air pumpstrainer known as the Fifty-Four de-rived from the fact that the suction areais approximately fifty-four inches. .\ circular notice explains that with thelarge volume of air drawn into thecompressors, especially the large capacitycompressors commonly used, more or lessforeign matter enters the air cylinderswhen engines arc standing over ash pitsor when operating through desert sec-tions, and without an adequate strainerthis dust and grit entering the cylindersnot only necessitates more frequent re-newals of packing rings and reboring ofcylinders but will seriously interfere withthe lubrication of the cylinder and thereby August, 1916. RAILWAY AND LOCOMOTIVE ENGINEERING. 275 shorten the life of the cyliiulcr clogged strainer will cause the com-pressor to increase the power consumption. SECTION VIEW OF per cubic foot of air compressed and maysometimes result in a failure to maintainthe required pressure for the brake sys-tem. It is obvious that if a strainer is tobe efficient in keeping dirt out of the aircylinders and is to be kept from cloggingup, it must be cleaned with sufficientfrequency, depending entirely upon themargin of capacity the strainer has. The cuts used in this issue will give afair idea of the construction of the strainer,it is made in one size but of ample capac-ity for the larger compressor. Thisstrainer is not furnished with the standardcompressors when specified, andthe cost of strainer and any informationdesired with reference to it will as usualbe furnished by the company upon appli-cation. sidered. If an ounce of prevention isever worth a pound of cure, it is in thecare of an air pump. There is always a cause for an airpump failure, which arises from somedefect or disorder which if discov
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