The boys' book of engine-building; . *43 144 TJie Boys9 Book of Engine-Building diameter near the bottom of the box can bedrilled in the casting when you get it. Theseare for the sand pipes. Its a hard job to make a pattern for the belland have it cast, but you can buy a bell and makea frame for it. The steam dome is i% inchesin diameter and 1Y2 inches high. Drill two %-. THE hWGEfZ^J^fr THE PE&E9TMFig. 56. The Saddle Pedestal and Hanger inch holes on opposite sides of the dome as shownat A in Fig. 55; one of these is for the steamwhistle and the other for the safety valve. Thedome must, of co
The boys' book of engine-building; . *43 144 TJie Boys9 Book of Engine-Building diameter near the bottom of the box can bedrilled in the casting when you get it. Theseare for the sand pipes. Its a hard job to make a pattern for the belland have it cast, but you can buy a bell and makea frame for it. The steam dome is i% inchesin diameter and 1Y2 inches high. Drill two %-. THE hWGEfZ^J^fr THE PE&E9TMFig. 56. The Saddle Pedestal and Hanger inch holes on opposite sides of the dome as shownat A in Fig. 55; one of these is for the steamwhistle and the other for the safety valve. Thedome must, of course, have a wide flange so thatit can be riveted securely to the boiler shell. The Saddle, Pedestal and Hanger.—The nextthing to do is to make the patterns for the cylin-der saddle, the driving wheel pedestal and thehanger for the trailing wheels. These are shownat A, B and C in Fig. 56 and the dimensions are A Model Atlantic Type Locomotive 145 marked on them. Drill two holes through thesaddle, four through the pedestal and two throughthe hanger so that they can be riveted to theboiler shell and fire-box as shown at A in Fig. 55. Drill four holes through the hangers of the pedestal to form the bearings for the axle for the driving wheels and drill two holes in the ends of the hanger of the trailing wheels to form bearings for its axle. When you have done a
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Keywords: ., bookcentury1900, bookdecade1910, bookpub, booksubjectsteamengines
