. Le génie ferroviaire et de locomotive : un journal pratique de la force motrice ferroviaire et du matériel roulant . une caisse de dévalissage boulonnée sur le côté de basse pression de chaudière de 165 lb les poids et les rapports de la conception sont un smokebox. Un tuyau courbé relie les cylindres à 1854 x 24 in. Et suit- le compartiment de vapeur saturée de la vapeur surchauffée est distribué avec une tête en T ■ * VM, tandis que le su- aux cylindres au moyen des soupapes à piston *& SSSLZ.??. ?? ° 4 o6 le compartiment vapeur chauffé est connecté- ayant l'entrée intérieure et exploité par ^ng^urface X diaphragmes diam + hea

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. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . a box easting bolted to the side of low boiler pressure of 165 lbs. weights and ratios of the design are a the smokebox. A curved pipe connects The cylinders are 1854 x 24 ins. and follows- the saturated steam compartment of the the superheated steam is distributed w.vm a ■ ■ * header with the tee-head, while the su- to the cylinders by means of piston valves *& SSSLZ.???. ?? ° 4 o6 perheated steam compartment is connect- having inside admission and operated by ^ng^urface X diam drivers + hea- ed directly to the steam passages in the a simple arrangement of Walschaerts I?t3l hettinR *■-*>«^gratearea::] °6oT cylinders by a pipe east integral with the valve gear. Reversing is effected by ^SSJ^SS? £??.+ ™ »«** header, thus reducing the number of means of a screw and hand crank. The ^fefe °n drVefS Ht°a heating 5ur- joints. There are twelve large boiler hoiler is of the straight-ton tvne with Bel- Volume bothcyiindeVs.cu.it.......... 6$U tractive power. 17.000 lbs.. W 1 r, ;.„ r , -, , u FOK THE WESTERN RAILWAY. OF HAVANA W. J. Unggs, Locomotive Superintendent. ur llvx «««. tubes 5J4 ins. in diameter outside, each ofwhich contains four seamless steel super-heating tubes il/z ins. in diameter. Thesuperheater tubes are arranged in pairs, the two tubes in each pair being con-nected at the back ends by cast steel re-turn bends. The ends of the superheatertubes are bent around horizontally to meetthe steam headers. This arrangement al-lows complete freedom for the expan-sion and contraction of the superheatertubes due to variations in temperatureand thus serves to prevent the leaking ofthe joints. The ends of the superheaterpipes are upset and machined to form aball which is ground into its seat in the paire firebox, and the barrel measures 55ins. in diameter inside at the first course.It contains 135 tubes 2 ins. in diameterand 10 ft. ioj ins. long, and

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