. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . DETAILS OF P.^CKING RINGS. way, but is the one essential feature miusing this valve. The locking effect of the double-tapcrcdwedge ring, 4, when it is expanded bypressure underneath, thus crowding thetwo solid wall rings, 2, 2, laterally andholds them, as it were, with a prede-termined force against the cone sides ofthe snap rings, i. i. It will be understoodthat by putting sharper cones on the sidesof the snap rings and making the solidwall rings to correspond, the force of the. Increased lu


. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . DETAILS OF P.^CKING RINGS. way, but is the one essential feature miusing this valve. The locking effect of the double-tapcrcdwedge ring, 4, when it is expanded bypressure underneath, thus crowding thetwo solid wall rings, 2, 2, laterally andholds them, as it were, with a prede-termined force against the cone sides ofthe snap rings, i. i. It will be understoodthat by putting sharper cones on the sidesof the snap rings and making the solidwall rings to correspond, the force of the. 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 free.


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