. Ingénieur américain et journal ferroviaire . 0 pour cent, des alliages de vanadium avec le fer, le remainderétant utilisé pour nettoyer le fer des oxydes et des nitrures. Fonte en fonte qui a été vanadisée, la plupart du vana-dium est nécessairement perdu, en raison des con-ditions oxydantes très fortes sous lesquelles le fer est fondu. L'effet, cependant, de la petite quantité de vanadium restant dans l'ironis refondu est apparent dans la texture du grain et de sa production libre de porosité. BIELLE DE DÉSACCOUPLEMENT SUR COUPLEUR PILOTE ARRIÈRE THROV. De nombreuses routes souhaitent utiliser le type de pilote de recul
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. American engineer and railroad journal . 0per cent, of the vanadium alloys with the iron, the remainderbeing used up in cleansing the iron from oxides and nitrides. Inremelting cast iron which has been vanadized, most of the vana-dium is necessarily lost, owing to the very strong oxidizing con-ditions under which the iron is melted. The effect, however, ofthe small amount of vanadium remaining in the remelted ironis apparent in the texture of the grain and its consequent free-dom from porosity. UNCOUPLING ROD ON THROV-BACK PILOT COUPLER. Many roads desire to use the throw-back type of pilot coupler, but have been prevented from doing so because of the regula-tions for an uncoupling lever on these pilots. On the AtlanticCoast Line this difficulty has been solved by an arrangement thatis shown in the accompanying illustration. The usual type ofdouble ended cross arm is used, but instead of having the un-coupling arm forged integral with this rod, as is customary, ithas been arranged to pass through a hole in a 3 in. boss forged. on the cross rod. This is sufficient to give the necessary stiffnessand permits the arm to slide back through the cross rod whenthe coupler is thrown back. This arrangement has been usedfor some time on this road and has met with the approval ofthe Interstate Commerce Commission. On the pilot illustrated, in this connection, it will be notedthat the bars have been cut away at the bottom to provide astep for the trainmen without the application of extension onthe pilot base. * Extracts ^ from a paper read at the May meeting of the New EnglandFonndryniens Association, at Hartford, Mass., by Geo. L. Norris. Standakd Location for Car Door Fasteners.—In m opinion, the Master Car Builders Association should prescribe a stand-ard height from the top of rail for placing door fastenings onall new cars built and when repairing old cars requiring new-doors, or door stops, the door fastenings should be placed atthe new standard. If this is done it will
