. Tentative revised boiler safety orders. > i 10*Pipe k/jyy////. -: /.v. v///:wyyy;//;:y/y/yy7i^9:rT^ r Fig. 6 Details of Pattern and Mold Eeqiitred for Arbitration Bars inTesting Gray-Iron Casting Material and the deflection at rupture noted. One bar of every two of each setmade must fulfill the requirements to permit acceptance of the cast-ings represented. 106 Mold for Test Bar. The mold for the bars is shown in The bottom of the bar is 1/16 in. smaller in diameter than thetop, to allow for draft and for the strain of pouring. The patternshall not be rapped before withdraw
. Tentative revised boiler safety orders. > i 10*Pipe k/jyy////. -: /.v. v///:wyyy;//;:y/y/yy7i^9:rT^ r Fig. 6 Details of Pattern and Mold Eeqiitred for Arbitration Bars inTesting Gray-Iron Casting Material and the deflection at rupture noted. One bar of every two of each setmade must fulfill the requirements to permit acceptance of the cast-ings represented. 106 Mold for Test Bar. The mold for the bars is shown in The bottom of the bar is 1/16 in. smaller in diameter than thetop, to allow for draft and for the strain of pouring. The patternshall not be rapped before withdrawing. The fiask is to be rammed up NEW INSTALLATIONS, PART I, SECTION I, POWER BOILERS 29 with green molding sand, a little damper than usnal, well mixed andput through a No. 8 sieve, with a mixture of one to twelve bituminousfacing. The mold shall be rammed evenly and fairly hard, thoroughlydried and not cast until it is cold. The test bar shall not be removedfrom the mold until cold enough to be handled. 107 Speed of Testing. The rate of application of the lo
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsteambo, bookyear1919
