. Railway master mechanic [microform] . y in removing the steelshaft from the opening through the plate. From myobservations of these experiments, I am inclined to believethat a mass of steel of considerable size may be worked, ifacted upon by a spinning tool of sufficientlv high velocitv.* ***** * I will say finally, that in the construction of steam tur-bines, and other machinery intended to be run at extraor-dinarily high velocities, the phenomena which are hardlynoticeable at ordinary speeds may become highly objec-tionable, or m iy be turned to useful account. An illustra-tion may be give
. Railway master mechanic [microform] . y in removing the steelshaft from the opening through the plate. From myobservations of these experiments, I am inclined to believethat a mass of steel of considerable size may be worked, ifacted upon by a spinning tool of sufficientlv high velocitv.* ***** * I will say finally, that in the construction of steam tur-bines, and other machinery intended to be run at extraor-dinarily high velocities, the phenomena which are hardlynoticeable at ordinary speeds may become highly objec-tionable, or m iy be turned to useful account. An illustra-tion may be given as follows: A circular disk of steel. 5-16of an inch in thickness, and \% inches in diameter, wasused as a thrust plate, in our completed turbine to carrythe weight of the revolving wheel. Small curved groovesabout 1-16 of an inch wide by 1-16 of an inch deep werethen cut in this rotating disk on opposite sides from cen-ter to circumference. Stationary upper and lower bearingplates were placed on opposite sides of the disk, and these. Fig. also carried the journal bearing for the grooves were cut in both top and bottom journalbearings so that oil could reach the center of the steel disk with the bearing plates bolted together wasplaced in the bottom of a cast iron pot in the turbine cas-ing, and then the pot was filled with oil. There would, ofcourse, be a tendency to throw oil radially from the cen-ter to the circumference of the groove in the steel was then connected up with a small pipe leadingfrom the space surrounding the edge of the disk, so as tocarry the oil into the upper bearings of the dynamo andengine. We found that this little centrifugal pump (seeFigs. 1 and 2) had sufficient power not only to supply thebearing with oil, but it could lift oil 22 ft. high in a solidcolumn, filling a J£ inch pipe. Recurring directly to the steam turbine, in closing-Mr. McElroy expresses himself as having -greatfaith in the future of the st
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895
