. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ins., and the driving side rod bearing is7^x5 ins. The leading side rod bearingis SAMVi ins. The trailing truck is radial and is laid 344 RAILWAY AND LOCOMOTIVE ENGINEERING August, 1904. out on a radius of 100 ins. in front ofthe axle of the carrying wheels. The-brake hanger is arranged so that thebrake shoes may follow the movement ofthe wheels. This is done by allowingfor the cross swinging of the hangers atthe suspension point, as well as for theordinary fore and aft movement pro-vided by
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ins., and the driving side rod bearing is7^x5 ins. The leading side rod bearingis SAMVi ins. The trailing truck is radial and is laid 344 RAILWAY AND LOCOMOTIVE ENGINEERING August, 1904. out on a radius of 100 ins. in front ofthe axle of the carrying wheels. The-brake hanger is arranged so that thebrake shoes may follow the movement ofthe wheels. This is done by allowingfor the cross swinging of the hangers atthe suspension point, as well as for theordinary fore and aft movement pro-vided by a pin joint. The boiler is 67 ins. outside diameterat the smoke box end, and the taper The boiler is supplied by two No. 11Simplex injectors and the hose con-nection or goose neck on the tender isso designed that the strainers can bereadily got at, examined and fire connection can also be tank holds U. S. gallons ofwater and carries 10 tons Inthis design of boiler the roof and crownsheets are level and enclose a steam andwater space of about 24 ins. The center. DOUBLE TOP CHECK ON BACK SHEET 4-4-2 PENNSYLVANIA LINES. BUTT END OF MAIN ROD. course is the first one. The outside di-ameter at the waist is 73 ins., and thelength over all is 32 feet 4ji ins. Thefire box is of the Belpaire type and iswhat may be called semi-wide, as it ex-tends out over the frames, but does notreach the dimensions of a fire box de-signed for the burning of hard coal. Thesteam pressure carried is 205 lbs. to thesquare inch. The flues are ordinary 2in. ones, but there are 315 of them, and line of the boiler is 109 ins. above thetop of the rail. Water supplied to theboiler enters through the check valveson the back sheet. The water fromeither injector passes through one 23-2in. iron pipe, which runs forward to with-in about 36 ins. of the front flue sheet orround head. This gives a certain amountof heat to the feed water before it min-gles with the water already in th
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