. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . other draws superheated steam from the throttle pipeconnection to the superheater header for use in the aircompressor, stoker, booster, headlight turbine, blowerand whistle. The petticoat pipe in the smokebox has a blower ar- 151 152 RAILWAY AND LOCOMOTIVE ENGINEERING June, 1928 rangement in the bottom periphery instead of connectingthe blower to the exhaust nozzle, which is of the Good-fellow type. Owing to the location and construction ofi he steam dome incidental to the front-en
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . other draws superheated steam from the throttle pipeconnection to the superheater header for use in the aircompressor, stoker, booster, headlight turbine, blowerand whistle. The petticoat pipe in the smokebox has a blower ar- 151 152 RAILWAY AND LOCOMOTIVE ENGINEERING June, 1928 rangement in the bottom periphery instead of connectingthe blower to the exhaust nozzle, which is of the Good-fellow type. Owing to the location and construction ofi he steam dome incidental to the front-end throttle ar-rangement, an auxiliary inspection dome is located onthe course next to the firebox to facilitate interior boilerinspection. The boiler lagging studs are welded to the boiler insteadof being tapped in. The lagging is covered with a jacketmade from copper-bearing steel. The boiler is supported on frames made of manganese-nickel cast steel. The pedestal toes are of minimum depthand made wide enough to take collared pedestal studswhich, in conjunction with the outer pedestal bolts, hold. Front View of Locomotive No. 4000 of the Boston & Maine the pedestal cap in place. This, arxangement draws thecap directly to the toes and eliminates the fulcrum effectat the toe and consequent flexure of the cap found in theusual application. The key arrangement at the frame andsaddle fit is the double wedge type with a bolt. All of the pedestals are equipped with Franklin auto-matic wedges with parallel-faced floating plates and singletaper wedges. The shoes are made of special bronze. The spring saddles on the driving boxes are designedto bear on the ends and not in the center. This featureassures a stable setting of the saddle and eliminates un-even wear on the saddle seat and consequent relining withinserted plates. Eventual wear can be taken care of bybuilding up with autogenous welding and then machining. The main rods, side rods, driving axles and crank pinsare made from norm
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
