. American engineer and railroad journal . cient to affect theratios materially. The grate area and size of firebox remains thesame as before. The crown sheet has four rows of expansionlinks at the front end and the throat sheet completely encirclesthe barrel, being flanged out of a single plate. The safetyvalves and whistle are on an auxiliary dome just aheadof the firebox. The smoke box has a short extension and isfitted with a spark hopper and low single exhaust nozzle. The design of the frames is shown in the illustration. Theyare of cast steel, the front rail of the main frame ext
. American engineer and railroad journal . cient to affect theratios materially. The grate area and size of firebox remains thesame as before. The crown sheet has four rows of expansionlinks at the front end and the throat sheet completely encirclesthe barrel, being flanged out of a single plate. The safetyvalves and whistle are on an auxiliary dome just aheadof the firebox. The smoke box has a short extension and isfitted with a spark hopper and low single exhaust nozzle. The design of the frames is shown in the illustration. Theyare of cast steel, the front rail of the main frame extending tothe front of the cylinders only. The cast steel bumper plate isbraced by supplementary lower frames set at 23 in. centers, be-ing secured below the cylinders and extending to the bumperbeams. The rear frames, as has been the practice of this com-pany from the beginning, are placed outside the trailer-wheelsand are connected to the main frames by a substantial steel cast-ing. The trailer wheels are allowed a limited amount of side. BOILER OF EURLIXGTOX LOCOMOTIVE. valve inside the cylinder and between the top and bottom framerails, it was necessary to incorporate a rocker in the valve of the illustrations shows the design of this rocker, whichis made of cast steel in webbed section of unusual rigid andstrong design. It is swung from a steel shaft carried by bearingssecured to the guide yoke and resting on top of the frame. Theinner arm is slightly longer than the outer and connects to thevalve stem by a link. This arrangement makes an admirablesupport for the weight of the gear and eliminates all possibilityof the valve rod getting out of line because of the weight carriedby it. The valve gear links are carried outside of the front driv-ing wheel, being supported by longitudinal bearers connectingthe guide yoke with the frame cross-tie between the first andsecond drivers, this being the same general arrangement that iscommonly used on Pacific type locomotives.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
