. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . e question ofsteel tubes for locomotives or if you wanta look at the card, write to the companydirect; a po.*;! card will bring a reply fromthem. but permits it to close at once under thepressure of live steam. When steam enters the cylinder, as atstarting the engine, this valve closes. Assoon as the exhaust takes place thedrainage valve D opens and allows thewater of condensation to escape. Whenthe engine is running the compressiontaking place in the cylinder holds thevalve so that there is
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . e question ofsteel tubes for locomotives or if you wanta look at the card, write to the companydirect; a po.*;! card will bring a reply fromthem. but permits it to close at once under thepressure of live steam. When steam enters the cylinder, as atstarting the engine, this valve closes. Assoon as the exhaust takes place thedrainage valve D opens and allows thewater of condensation to escape. Whenthe engine is running the compressiontaking place in the cylinder holds thevalve so that there is practically no leakage. When there is an excessive quantityof water in the cylinder the drainagevalve is forced down on its seat on valveB. Then both these valves act as one andopen together, giving a wide aperture fo;the rapid escape of the water. With this valve opening automatically,as it does when steam is shut off, thewater is drained as fast as it condenses,therefore no water is worked through thevalves and cylinders and the lubricant isnot washed out. While the engine is drifting the drain-. AUTOMATIC CVLIXDEK COCK. age valve remains open, which permitsthe entrance and exit of air. It is in facta small relief valve and any excessivepressure of air, water or steam is capabKof unseating the valve B and so relievingthe strain. Automatic Cylinder Cock. A locomotive engineer on the New-York Central Lines living at Worcester,Mass., has got out an automatic cylindercock which relieves the cylinders withoutany attention from the engineer, in factthere is no connection from the cylindercocks to the cab. Mr. F. C. Miller, theinventor, calls it an automatic drainagerelief and compression valve. In our illustration we show a sectionof the device. The nipple J is screwedinto the cylinder. The part marked B isa high-pressure valve held to its seat bythe heaN-y coil spring C. The smallervalve D is the drainage valve, and itsseat is in the larger high-pressure valveB, but the drainage v
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Keywords: ., bookcentury1900, bookdecade1900, bookidrailwaylocom, bookyear1901
