. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . nun load-carrying standpoint, with-out regard to train strains; but those usedm interchange must be considered fromboth standpoints. For the latter, yourcommittee recommends the following asminimum design requirements to producecars giving maximum returns for moneyexpended : Area of center sills: 24 sq. ins., mini-mum. Ratio of stress to end load: ,maximum. Length of center or draft sill mem-bers between braces: 20 d, maximum (dis the depth of the member, measured inthe direction in which
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . nun load-carrying standpoint, with-out regard to train strains; but those usedm interchange must be considered fromboth standpoints. For the latter, yourcommittee recommends the following asminimum design requirements to producecars giving maximum returns for moneyexpended : Area of center sills: 24 sq. ins., mini-mum. Ratio of stress to end load: ,maximum. Length of center or draft sill mem-bers between braces: 20 d, maximum (dis the depth of the member, measured inthe direction in which buckling mighttake place). Specifications and Tests for committee on the above subjectswas instructed to revise certain specifica-tions of the association and prepare newones covering certain other classes ofmaterial covered in the recommendationsof last years committee on form. Ac-cordingly specifications covering sixteendifferent classes of material were sent outfor criticism by the members, and, as aresult of these criticisms and subsequentmeetings, it was agreed that the follow-. F. F. M. M. Association. ing-named materials only could behandled this year: Air brake hose, heat-treated knuckle pivot pins, steel axles,refined wrought iron bars, welded pipe,helical springs, chain and journal boxbrasses and that the specifications cover-ing the following materials could be fur-ther investigated and specifications of-fered at the next annual meeting: Re- frigerator car heat insulation materials,mild-steel bars for miscellaneous parts,steel castings, rivet steel and rivets, struc-tural steel and steel plates galvanizedsheets, malleable iron castings and ellipticsprings. Safety behalf of the Committee on SafetyAppliances an oral report on the subject
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
