. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . Increased lubricating efficiency—thats what we want you to stop amoment to consider. And its amighty vital thing this problem oflubrication. Just how vital you rea-lize when you remember that an en-gine couldnt run without it. Now Dixons Flake Graphite has some properties that no otherlubricant of equal value Graphite is a solid, it is notsubject to heat or cold, will with-stand the greatest pressures, and isunaffected by acids or alkalies. Doyou know of any oil or grease that


. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . Increased lubricating efficiency—thats what we want you to stop amoment to consider. And its amighty vital thing this problem oflubrication. Just how vital you rea-lize when you remember that an en-gine couldnt run without it. Now Dixons Flake Graphite has some properties that no otherlubricant of equal value Graphite is a solid, it is notsubject to heat or cold, will with-stand the greatest pressures, and isunaffected by acids or alkalies. Doyou know of any oil or grease thatwill stand such tests? Write for our new booklet C-69on Dixons Ticonderoga FlakeGraphite—sent to you hdble (0. JersejQfy, NJ. March, 1909, RAILWAY AND LOCOMOTIVE ENGINEERING 133 GOLD CarHeating 8t LightingCompany Manufacturer! o( ELECTRIC,STEAM ANDHOT WATERAPPARATUS FOR RAILWAY CARS IMPROVEDSYSTEM OFACETYLENECAR LIGHT-ING Largett Manufacturer! in ifie World ofCar Heating Apparatui Send for Circular of our NewCombined Pressure and VaporSystem of Car Heating. Main Office, Whitehall Building 17 BATTERY PLACE NEW YORK Uouble-tapered wedge ring, crowding thewall rings laterally on a sharper cone,would decrease the diameter of the snapring, regardless of the pressure beneathil, under which conditions the leveragewould be too great and would permit ablow over the outside of the snap the other hand, if the angle on thesnap ring was lessened and the cone madeflatter, with wall rings to correspond,then the wedging action of the centralwedge ring would not be sufficient tnhold the snap rings from expanding bythe pressure underneath them, and thiswould result in excess friction against t


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