. Le mécanicien de locomotive . les ingénieurs, en règle générale, en savent plus sur le frein que les autres trainmen, et sont donc en mesure de le manipuler — il y a beaucoup d'un trainniauto-jour qui croit que la pression d'air maintient Ihefrein, et que sa réduction permet aux ressorts de le perdre. Ce que l'on veut dans cette affaire de freins pneumatiques, c'est la morelight, les écoles d'enseignement, et certains de nos monteurs de technologie et de chemin de fer mighi assistent à quelques lec-tures sur le sujet wilh profit. Mais la protestation des morts-vivants se déclare againstthis abythis carrément négligent, laissons la cause être ce qu'elle peut.et nous avertit que quelque chose doit être mort

• Contributeur: Reading Room 2020 / Alamy Banque D'Images
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. The locomotive engineer . engineers, as a rule, know more about thebrake than other trainmen, and are therefore bet-ter able to handle it—there is many a trainniauto-day that believes that air pressure holds Ihebrake off, and that its reduction allows springs loset it. What is wanted in this air-brake business, is morelight, schools of instruction, and some of our tech-nicid and railroad editors mighi attend a few lec-tures on the subject wilh profit. But the protest of mangled dead declares againstthis gross carelessness, let the cause be what it may.and warns us that, something must be done lo lessenthe harvest of victims. When we have an official investigation of everyfatal accident, and IhegR-atest publicity concerningthem, when it is a misdemeanor to run a passengertrain not equipped throughout with automaticbrakes, and when we protect our flying trains wilha block signal, we will have done someibing toprevent such aceidenls—as it is, we -simply takechances, and—lose once in a thousand times or so.. Tho Iai-Ungtou .HetiilMc Packing. The accompanying illustrations show u melalliepacking conslrucled on an entirely new principle, and of a dilTcrcnt malerial from any other pack-ing—the invention of a practical engineer of morethan forty yeai^ experience. All oiLcr mclullic packiugshnvea common plan—the spring and sleam forcing soft metal ringsinto a cone, thusclosing them upon the rod, All of these packings have one fault—they pinchthe rtHJ when slojim is shut oil and the engine isdrifting, and in long runs down hill it often bappens thai the rings aRi hammered through the col-lar and come out a^ thin as tin. In this packing no cone or small rings are used, and when sleam is shut oil ttiere is no pressure onthe rod, the rings are heavy, about IhaC-fourthsof an inch square, and lliey are made of soft cast-iron. The packing can be applied loany locomoliviiwithout atlering in any way the stufTlng-boxes. The gland has a aiiuari- recess in it, somewhatlarger

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