. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . A Outi. Diam. of flue lesf^^B - Outs. Diam. of Flue /ess |C- Outs. Diam. of Flue plus ^. Flaring Tool. give increased length of flameway, to al-low combustion to be more nearly com-pleted before it is extinguished by admis-sion to the tubes. Combustion once com-pleted, it is immaterial whether ihe heatbe absorbed by the firebox or by the tubes,and the more heat extracted by the fire-. Liners-^-tK^A Outs. Diam. of Flue p/us g^.Die Block a flange turned over at right angles tothe body of the tu


. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . A Outi. Diam. of flue lesf^^B - Outs. Diam. of Flue /ess |C- Outs. Diam. of Flue plus ^. Flaring Tool. give increased length of flameway, to al-low combustion to be more nearly com-pleted before it is extinguished by admis-sion to the tubes. Combustion once com-pleted, it is immaterial whether ihe heatbe absorbed by the firebox or by the tubes,and the more heat extracted by the fire-. Liners-^-tK^A Outs. Diam. of Flue p/us g^.Die Block a flange turned over at right angles tothe body of the tube without showingcracks or flaws. This flange, as meas-ured from the outside diameter of thetube, shall not be less ihan 15 per the outside diameter, but they shall inno case exceed Yi in. in width. In mak- 202 RAILWAY AND LOCOMOTIVE ENGINEERING July. IVl ing the flange lest, it was recommendedthat iho flaring tool and the block shownin the annexed figure be used. The commit tees report cinliraccd alsohydrostatic tests, standard weights, per-missible variations, workmanship, finish,marking and numerous details, all shownin the exhibits, and much of the reportembraced ami emphasized the regulationsrecommended by the M. C. B. Committee. Locomotive Headlights The commiltccs report opened with ahistory of the evolution of the IcicomotivehcadliKliI from the lime that the first arclight was operated in the early eightiesby an oscillating engine, which was laterchanged into a


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