. Locomotive engineering : a practical journal of railway motive power and rolling stock . y will refuse toreceive cars from connecting lines unlessuniform with their own. This fact alonewill compel the smaller roads to put theseappliances on their cars in order that theymay interchange traffic, otherwise theircars will not be received by the trunk various coupler companiesthroughout the country report increasedorders, while the air-brake people are pre-paring for the advanced demand that willbe made on them for brakes in the nexttwo and a half years. One company alonehas facilities
. Locomotive engineering : a practical journal of railway motive power and rolling stock . y will refuse toreceive cars from connecting lines unlessuniform with their own. This fact alonewill compel the smaller roads to put theseappliances on their cars in order that theymay interchange traffic, otherwise theircars will not be received by the trunk various coupler companiesthroughout the country report increasedorders, while the air-brake people are pre-paring for the advanced demand that willbe made on them for brakes in the nexttwo and a half years. One company alonehas facilities for supplying equipment for250,000 cars annually. i i i A Novel Valve=Stein Packing. Mr. D. E. Sullivan, foreman of the U. at Green River, Wyo., has devisedand put into service a novel form of valve-stem packing, which we illustrate here-with. The gland is replaced by a straight-boredcylinder longer than the valve travel ; thismakes a steam joint at the chest and holdsin place a neck ring of ordinary construc-tion. This cylindrical sleeve is bored outto about 4 inches A cast-iron piston, carrying three pack-ing rings, fits the bore of the bush nicelv,and is itself bored out on a taper to go overthe valve stem. This is slippedover the stem and into the bush ; then asplit taper sleeve is pushed into it, and anut, the same outside size as the piston, isscrewed to the back boss of the piston ; this 644 nut increases the bearing surface of thepiston, and at the same time forces thetaper sleeve into the piston, locking thewhole thing fast on the stem. This piston makes the steam-tight joint,requires no lubrication except what it getsfrom the chest, and, of course, never wearsthe stem. An engine with this packing has been inservice about two years. g i i straightening Castings. Sometimes a casting is warped in coolingand requires straightening before beingused. If the piece is to be planed or other-wise finished, it should be straightened byheating and placi
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
