. Locomotive engineering : a practical journal of railway motive power and rolling stock . have been giving a thor-ough trial for several months, and whichhas given entire satisfaction. The packing is made by the CincinnatiDudley Metallic Packing Co., and is guar-anteed for two years. It is less expensivethan any other metallic packing that Iknow of, and is the only packing I haveseen that will work to entire satisfactionon a pull-up driver brake. The conical rings « and 6 bear against LOCOMOTIVE ENGINEERING. 337 the rod, and dished rings c and d bearagainst the rubber which incases the rings.
. Locomotive engineering : a practical journal of railway motive power and rolling stock . have been giving a thor-ough trial for several months, and whichhas given entire satisfaction. The packing is made by the CincinnatiDudley Metallic Packing Co., and is guar-anteed for two years. It is less expensivethan any other metallic packing that Iknow of, and is the only packing I haveseen that will work to entire satisfactionon a pull-up driver brake. The conical rings « and 6 bear against LOCOMOTIVE ENGINEERING. 337 the rod, and dished rings c and d bearagainst the rubber which incases the ring e is a flat separator which isgrooved to collect the lubricant and holdit on the rod. The black line around thepacking shown in the sketch is rubberwhich adjusts the ring to the rod. Tight- complete. The pump is then raised to posi-tion, eye-bolts removed, plugs put in, andthe job is finished. In the writers estima-tion this is a decided improvement overthe rope sling which was formerly used. This device has been used for a numberof years on the old 8-inch pump, and since. Locomotive Enoinoerina ening up on the gland nut causes therings to close on the piston. It is unnecessary to disconnect the rodto renew this packing. But as the driverbrake has no gland it is necessary to dis-connect the rod to first apply the P. H.^LLER, A. B. Ins. C. & O. , Ky. i i i The Triple Valves Christening. , Editors : In the March number of LocomotiveEngineering C. W. P. asks why atriple valve is so called, and gives reasonsfor his idea. No doubt your air-brakeeditor gave the functions of the triplevalve correctly. My reason for callingit a triple valve is because it is a valvecasing composed of three valves within,namely, a piston valve, slide valve and agraduating valve. Chicago, III. Geo. D. Boam. [The triple valve was given its presentname before the graduating valve was in-troduced, and at a time when the graduat-ing function was performed by the grad-uating
Size: 2077px × 1203px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
