. Railway mechanical engineer . ilroads are now using this lubricator and it is claimedthat it has resulted in a material reduction in the consump-tion of valve oil and fuel. CAST IRON PISTON ROD PACKING A cast iron piston rod packing which has been used suc-cessfully in marine service has been developed for use onlocomotives by the Martell Packings Company, Elyria, packing has been designated to meet the particularneeds of superheater locomotives. It is made from a selectedgrade of cast iron and, as shown in the illustrations, consistsof a pair of rings of four segments each, which
. Railway mechanical engineer . ilroads are now using this lubricator and it is claimedthat it has resulted in a material reduction in the consump-tion of valve oil and fuel. CAST IRON PISTON ROD PACKING A cast iron piston rod packing which has been used suc-cessfully in marine service has been developed for use onlocomotives by the Martell Packings Company, Elyria, packing has been designated to meet the particularneeds of superheater locomotives. It is made from a selectedgrade of cast iron and, as shown in the illustrations, consistsof a pair of rings of four segments each, which are held inlight contact with the rod by a coiled extension spring is made from a high grade of nickel steel which made without a change, alteration or adjustment of the pack-ing rings. In this case the diameter of the piston rod wasreduced .006 in. during the time the locomotive made the94,000 miles. As shown in the drawing the packing is designed to floatfreely and easily with the lateral motion of the piston Cast Iron Packing Rings for Piston Rods of SuperheaterLocomotives It is designed to prevent any abrasive substance lodging be-tween the packing rings and the piston rod and the wearingparts can be placed without tools of any kind except for a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
