. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . < n to bipensive in this way. It is fair to as-sume that the metal in cylinder castingswill be heated nearly to the temperatureof the steam used in them about 387 degs. The engine arrives at the top of a grade,the throttle is closed off and the engineallowed to drift for 20 miles. Necessarilya change of temperature will take placein the metal of the cylinders, they will becooled down to the temperature of the ator that tli-r- will be an evengradual fall for the oil to pass unim-peded from
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . < n to bipensive in this way. It is fair to as-sume that the metal in cylinder castingswill be heated nearly to the temperatureof the steam used in them about 387 degs. The engine arrives at the top of a grade,the throttle is closed off and the engineallowed to drift for 20 miles. Necessarilya change of temperature will take placein the metal of the cylinders, they will becooled down to the temperature of the ator that tli-r- will be an evengradual fall for the oil to pass unim-peded from it to its destination in thechest, where it begins the func-tion for which it i, intended— or kinks in theoil pipi - ..here water can lodge and thusof oil to theh mi chests and cylindeiAt some future day, perhaps. I willhave something to say relative to thequestion of lubrication and the economi-cal use of fuel. These ms gohand in hand, so to speak, and are, orshould be, of considerable importance tooperating officials. Being closely asso-ciated with these men myself, I think I. TEMPORARY CLAMP FOR CRACKED FRAMES. atmosphere, contraction will take placerapidly, and this contraction will invari-ably result in cracked bridges with theD slide valves, and in cracked valvechambers with piston valve is costing railroad companies whouse relief valves no very small item ofexpense annually. The relief valvescould be done away with, all right, andthe money saved from their discontinu-ance used to many better advantages. We say that their use is expensive andthe statement is correct if we care tomake proper application of it. The de-fects referred to in above statement areresponsible for great waste of fuel, assome of the steam generated by the fuelis wasted through the aforesaid defects,obscuring the vision of the engine crew,as it escapes from under the cylinder sad-dle, thereby enveloping the front end in acloud of steam, and thus the engine passesa
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