. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . plied to one of the standardtypes of tunrtable centers, and consistsof a pipe coming up through the centerand fixed in a suitable position, clear ofthe engine. On this are mounted the number of insulated rings. Aroundtho pipe turns the swiveling frame which where formerly they were fairly satis-factory when operated by hand. On many roads the turntables haveoutgrown the requirements of service,and the longer and heavier tables havebeen installed in their places. About 50per cent,
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . plied to one of the standardtypes of tunrtable centers, and consistsof a pipe coming up through the centerand fixed in a suitable position, clear ofthe engine. On this are mounted the number of insulated rings. Aroundtho pipe turns the swiveling frame which where formerly they were fairly satis-factory when operated by hand. On many roads the turntables haveoutgrown the requirements of service,and the longer and heavier tables havebeen installed in their places. About 50per cent, of the tractors which one firmhas shipped since the first of the yearhave been for 100-ft. turntables; theseturntables having been bought to takecare of new big locomotives that so manyof the roads are now purchasing. The Erie Railroad has put in five trac-tors on 100-ft. turntables in the past sixmonths, two of these being in the processof installation now, at Croxton and LittleFerry, the • others being in the like the Southern have also madea step in this direction and they too have. TURNT.\BLE TR.\CTOR READY FOR WORK. carries the brushes. The feed wires comeup through the pipe and terminate on therings. The wires lead away from thebrushes to the tractor itself. The wholedevice is a very simple form of slip ringcommutator, and has worked most admir-ably on almost every type of turntable. Insome special cases a modification to suitthe clearances on the particular tablehave had to be resorted to, but these casesform exceptions. The whole turntable tractor questionhas become more and more a live onefor our large railroads, as their engineshave been successively getting longerand heavier and have been taxing andeven over-taxing existing turntables. Thismeans that on old tables it is becomingincreasingly difficult to balance modernlocomotives which have to be turned onthe old method of turning tables byhand. Ordinary labor is becoming scarceand often unsatisfact
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
