. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ity to withstand strainsdue to the sudden and severe variationsin temperature; that it is absolutely proofagainst breakages, while the tendency toleakage is reduced to a minimum, and thefacility for repairs, if necessary, are sinpleand easy. DETAIL OF RETURN BEND ON SUPERHEATER PIPES. The third illustration shows the detailsof the header and dry-pipe joints. Theheader is attached to the front flue sheetby rivets and studs that hold securely inthe severest kinds of service. Owing tothe lightne
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ity to withstand strainsdue to the sudden and severe variationsin temperature; that it is absolutely proofagainst breakages, while the tendency toleakage is reduced to a minimum, and thefacility for repairs, if necessary, are sinpleand easy. DETAIL OF RETURN BEND ON SUPERHEATER PIPES. The third illustration shows the detailsof the header and dry-pipe joints. Theheader is attached to the front flue sheetby rivets and studs that hold securely inthe severest kinds of service. Owing tothe lightness of the header the strain onthe parts are much less than in the caseof a heavy casting. The dry-pipe isjointed in the boiler sheet in the usual The construction is very substantial andcompact. Much space is saved by havingthe header riveted to the flue sheet andthe length of the header extending out-wards from the flue sheet is also reducedby locating the tubes in close centres, andexpanding the tubes into position insteadof using ground joints with complexfastenings. There are also electrically. DETAILS OF HEADER AND DRY-PIPE JOINTS. way, and may be drawn out through theheader, which remains in its positionriveted to the flue sheet. The header isdivided into saturated and superheatedsteam chambers by a circular partitionclosed by a diaphragm that is readily re-movable. In the upper half of the headerthere are mandrel holes and also two welded supporting lugs attached to theflues. These have a broad bearing sur-face and cannot cut into the large flueswhere the lugs rest securely. It will thus be seen that the design hasthe merits of durability, lightness andcompactness in an eminent degree. It isalso readily adaptable to the various sizes Clark Firebox Steam Jets. We notice that what was known as theClark steam jet for locomotive fireboxeshas been introduced lately as a new in-vention. The arrangement was inventedin 1857 by D. Kinnear Clark, then loco-motive superintendent of
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
