. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . linepressure and air reservoir pressureused in bringing the trains to a block the relief valves shut, andrepeat the experiment, noting the dif-ference in momentum of train whiledrifting into a station, and also takeindicator cards of engine with reliefvalves open and closed. plates fastened to them. The special con-struction adopted is shown in our illustra-tion. This is the standard of the Cana-dian Pacific Railway, its special featurebeing the ventilation of that portion ofthe hou


. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . linepressure and air reservoir pressureused in bringing the trains to a block the relief valves shut, andrepeat the experiment, noting the dif-ference in momentum of train whiledrifting into a station, and also takeindicator cards of engine with reliefvalves open and closed. plates fastened to them. The special con-struction adopted is shown in our illustra-tion. This is the standard of the Cana-dian Pacific Railway, its special featurebeing the ventilation of that portion ofthe house above the bottom of the jack is made .so that the smoke pipeextends up into the pipe which stands onthe roof and there is an air space betweenthe two. The ventilating arrangement like the construction of an in-jector where the smoke pipe is analogousto the steam nozzle and the outer pipeis like the combining tube. The frame work of the jack is of wood,iron and asbestos angles. The plates arefastened by copper rivets, bolts and the material used is waterproof and. FIREPROOF SMOKE JACK USED 0.\ THEC. P. R. Fireproof Smoke Jack. Mr. F. P. Gutelius, assistant chief engi-neer of the Canadian Pacific Railway atMontreal, has recently designed a smokejack for engine houses, made with sup-porting posts and hardened asbestic fireproof, it is not afltected by smoke orfumes of gas or by climatic changes intemperature, etc.; it is claimed that thejack has a long life, and that its lightweight and low cost recommend it forgeneral use. The oblong aperture at thebase of the funnel makes the placing ofengines under it very convenient. Anengine can be moved a short distance for-ward or back under the jack as occasiondemands without smoking up the wholehouse. Suitable drip troughs can beplaced round the edges of the funnel. Thedevice is patented and is handled in theUnited States by Wendell & MacDuffie ofNew York. 130 RAILWAY AND LOCOMOTIVE ENGINEERING March, 19


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901