. Railway mechanical engineer . Fig. 1—Tram Marks Measured for Expansion months. Mr. Linderman, then boiler maker on the Michigan tram marks taken on both the inside and outside. It wasCentral, conceived the idea of comparing the expansion of found that the outside sheet expanded 3/32 in. more than the inside sheet. This same experiment was again tried under more favor-. Fig. 2—Cracks Found in the Throat Sheet Fig. 3—Showing the Staybolt Cracks in the Side Sheets the inside sheets and the outside sheets for various conditionsof heat and pressure. A boiler exactly similar to the one that abie c
. Railway mechanical engineer . Fig. 1—Tram Marks Measured for Expansion months. Mr. Linderman, then boiler maker on the Michigan tram marks taken on both the inside and outside. It wasCentral, conceived the idea of comparing the expansion of found that the outside sheet expanded 3/32 in. more than the inside sheet. This same experiment was again tried under more favor-. Fig. 2—Cracks Found in the Throat Sheet Fig. 3—Showing the Staybolt Cracks in the Side Sheets the inside sheets and the outside sheets for various conditionsof heat and pressure. A boiler exactly similar to the one that abie conditions at the West Albany shops, a wide firebox boiler being used. Six sets of tram marks were made on both Abstract of a paper presented before tbe Western Railway Club, AprilIS, 1916. the inside and outside of the boiler, as shown in Fig. 1, the 496 October, 1916 RAILWAY MIa HAXICAL ENGINEER 497 sixth one being made in the crown sheet and the roof sheet The same- procedure was followed as in the previous test,and here again it was shown that the expansion of the outersheet was greater in every case than that of the inner following table shows the results of these tests: Hark 1 Outside Wrapper Sheet Location Expansion - ■ .Ibin. i 12 —Side Sheet 1 4 in. Inside of Firebox Difference LocationSheet-Side Sheet. Expansion• in. ...3/32
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
