. Railway mechanical engineer . ets. As built, thelocomotives are hund-fired through two tiredoor openingswhich are closed with air-operated firedoors. The front end arrangement includes a 6^-in. exhaustnozzle and a 19-in. stack extension which extends down to apoint .>;;4 in. above the center line of the smokebox. The main frames and the single front rails under the cylin-ders are cast in one piece on each side. The top rail overthe pedestals has a section 6 in. wide by 7 in. deep. Thelower rails are ^jA in. deep at the smallest section, increasingto a depth of 5J4 in. over the ends of the
. Railway mechanical engineer . ets. As built, thelocomotives are hund-fired through two tiredoor openingswhich are closed with air-operated firedoors. The front end arrangement includes a 6^-in. exhaustnozzle and a 19-in. stack extension which extends down to apoint .>;;4 in. above the center line of the smokebox. The main frames and the single front rails under the cylin-ders are cast in one piece on each side. The top rail overthe pedestals has a section 6 in. wide by 7 in. deep. Thelower rails are ^jA in. deep at the smallest section, increasingto a depth of 5J4 in. over the ends of the pedestal rear frame and back deck plate arc an integral steel cast-ing, the forward ends of which are bolted to tlie rear endsof the main frames. The radius bar fulcrum, the pockets forthe rear ends of the trailer springs and the trailer equalizerbar fulcrums are all an integral part of this casting. With the exception of those for the main pair of drivers,the driving journals are 11 in. in diameter by 13 in. 4S, S^ Flues rube Sheet Layout and Section Through th The journals of tlie main drivers are 11j in. in diameterand IS in. long. Except for their length, the driving boxesused on this axle are similar in construction to those ordi-narily used where the center line of the driving box and thecenter line of the frame coincide. The main jaws are widenedby the use of steel castings which are bolted against the insideface of the pedestals. These castings also perform the func-tion of frame crossties. By the introduction of offset crossequalizers in the spring hanger system at either end of themain driving springs, the position of the main springs hasbeen moved in so that they are located directly over thelongitudinal center line of the driving boxes. Each springrests in a saddle of the usual t}-pe designed to clear the offsetposition of the frame rail relative to the center line of the box. Steam is admitted to the valve chambers through an out-side dome conne
Size: 1418px × 1762px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
