. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ttee the vent breakage recommends as follows: 1st. Sensible design. 2nd. Material cast steel, made to arational specification: Careful foundrymanipulation, adequate and suitable an-nealing. 3rd. Provide form of bracing as willprevent weaving. By weaving ismeant a movement of one side inde-pendently of the other, or of separateparts or joints, with reference to eachother locally; as, per contra, a move-ment of the frames as a whole in uni-son. The bracing should be so de-signed that the bendin
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ttee the vent breakage recommends as follows: 1st. Sensible design. 2nd. Material cast steel, made to arational specification: Careful foundrymanipulation, adequate and suitable an-nealing. 3rd. Provide form of bracing as willprevent weaving. By weaving ismeant a movement of one side inde-pendently of the other, or of separateparts or joints, with reference to eachother locally; as, per contra, a move-ment of the frames as a whole in uni-son. The bracing should be so de-signed that the bending, if any, shouldbe synchronous, as referred to the con-nected parts. 4th. The clip form of pedestal binderpreferred to the thimble and bolt type. 5th. Provision for quickly and ade-quately draining cylinders. This point isjust as important with slide as with pis-ton valves. 6th. Frames with single front railsshould be made stronger, and meansprovided to stiffen same back of cylin-ders, or between cylinders and frontdrivers. In the discussion the only additionalpoint brought out having any bearing. POSITION OF DRIVERS AND TRUCK WHEELS OF A 4-6-0 ON A CURVE. sired in information for immediate re-lief, neither was anything brought outin the discussion that would tend toadd materially to the value of the com-mittee report so far as offering a pana-cea for present frame breakage. A part of the report as submittedclassified the possible causes of failuresunder three heads, vis: The inertia ofthe boiler following the sudden applica-tions of brakes. The inertia of theboiler due to the sudden acceleration ofthe train. The dynamic effect of com-pression of water in the cylinders. After discussing the two first men-tioned causes thoroughly, however, andcalculating the effect of the inertia ofthe boiler, both for sudden stops andsudden acceleration, the committee pro-ceeds to completely demolish this hy- effect of rounding curves is also touchedupon but only in so far as the centri-fugal
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
