. American engineer and railroad journal . Draw ne Size FIG. 24.—EXERCISE FORTY-FOUR—BOILER TUBE DATA. A= Outside Dt tine tar v. n-j Surface ner Ft. C= of LviistliAmi of Sccti m In D * V ThickuesB >f Tube iu In. K Area of Metal in D * 0 BIrmiiigha m Wire Gauge 378 AMERICAN ENGINEER AND RAILROAD JOURNAL. miliarize the student with the use of tables giving dimensionsand data for several different lines and to give him practice inlaying out bolt forty-six, Fig. 25, is of special interest as it intro-. \ \\ IS ]) K F 1. ( X 1K0 X «; \l ■ in k « ii 32 X ■ aj 1 1H 1J 10
. American engineer and railroad journal . Draw ne Size FIG. 24.—EXERCISE FORTY-FOUR—BOILER TUBE DATA. A= Outside Dt tine tar v. n-j Surface ner Ft. C= of LviistliAmi of Sccti m In D * V ThickuesB >f Tube iu In. K Area of Metal in D * 0 BIrmiiigha m Wire Gauge 378 AMERICAN ENGINEER AND RAILROAD JOURNAL. miliarize the student with the use of tables giving dimensionsand data for several different lines and to give him practice inlaying out bolt forty-six, Fig. 25, is of special interest as it intro-. \ \\ IS ]) K F 1. ( X 1K0 X «; \l ■ in k « ii 32 X ■ aj 1 1H 1J 10 lHi 1% as i» - : ... Complete ]i = W s .8[> = \V s ME=\V , .JF=W 1 ,25I. =V» gize of Nit FIG. 25.—EXERCISE FORTY-SIX—WRENCH PROPORTIONS. duces a formula which the student is to use in order to com-plete the table of wrench proportions. Exercise forty-eight gives a table of dimensions for severaldifferent lines of 90 deg. cast iron elbows and requires the chang-ing of the decimals in the table to fractions. To assist thestudent in doing this he is referred to the table of decimalequivalents in Colvins Machine Shop Arithmetic. In several of the exercises thus far, the student has beenasked to supply most or all of the dimensions, but the dimensionlines were located. In exercise fifty-three, Fig. 26 (a coupler Snpply Dimensions by Measuring Part Draw View Here FIG. 26.—EXERCISE FIFTY-THREE—A COUPLER PIN. u pin), the student is for the first time asked to supply all of themissing dimensi
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
