. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . TOP OF SLIDE VALVE AND FACE OF GRADUATING VALVE. FACE OF SLIDE VALVE AND SLIDE VALVE SEATEQUALIZING SLIDE VALVE AND SEAT, NO. 14 DISTRIBUTING VALVE. Several years ago, when the weights ofcars very nearly approached 150,000 lbs.,a very complex problem was presentedas recommended practice as to total lever-age ratio required a brake cylinder largerthan 18 ins. in diameter, or one smallercylinder for each truck. A larger cylin-der was considered impractical, not onlybecause of the excessive weig
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . TOP OF SLIDE VALVE AND FACE OF GRADUATING VALVE. FACE OF SLIDE VALVE AND SLIDE VALVE SEATEQUALIZING SLIDE VALVE AND SEAT, NO. 14 DISTRIBUTING VALVE. Several years ago, when the weights ofcars very nearly approached 150,000 lbs.,a very complex problem was presentedas recommended practice as to total lever-age ratio required a brake cylinder largerthan 18 ins. in diameter, or one smallercylinder for each truck. A larger cylin-der was considered impractical, not onlybecause of the excessive weight of suit-able pistons and rods and the loss ofpower necessary to operate them, but it isvery difficult to find a steer with a hidelarge enough to contain a 20-in. leatherof uniform thickness. A brake cylinderon each truck means two complete brake brakes for heavy cars instead of doubleequipments. About the time this brake design prob-lem reached an acute stage several largerailroad systems discovered the fact thattheir passenger trains could not bestopped from high rates of speed in rea-sonable distances, and the brake manu-facturers being cal
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
