. American engineer and railroad journal . g provided. The hoppersthemselves are of cast iron or steel about 15 in. deep. The frameforming the guide bolted to the bottom of the hopper is coredout for its full length and tapped at the end for the introduc-tion of a in. pipe. Several small holes are drilled from thiscored passage to the bearing of the slide and steam for thaw-ing out a frozen slide is introduced in this way. The sliding wedge on the guide castings, which forces the doors to abearing against the bottom of the hopper after in a closed position. This feature also permits them t
. American engineer and railroad journal . g provided. The hoppersthemselves are of cast iron or steel about 15 in. deep. The frameforming the guide bolted to the bottom of the hopper is coredout for its full length and tapped at the end for the introduc-tion of a in. pipe. Several small holes are drilled from thiscored passage to the bearing of the slide and steam for thaw-ing out a frozen slide is introduced in this way. The sliding wedge on the guide castings, which forces the doors to abearing against the bottom of the hopper after in a closed position. This feature also permits them to bi given moreclearance in the guide than would otherwise he advisable. The ash pans on the Chesapeake and Ohio Railway are builtup of steel plates, liberal provision for air openings being madein the upper mtiions. I he hoppers proper are separate from theupper part of the pan, so that they can be removed and repairedor renewed as they become unsafe. A cast steel hopper boland slide or door is used on this road, the details of which are. FIG. -HOPPER TYPE OF ASH PAN—CENTRAL OF GEORGIA RAILWAY. doors are of cast iron chilled on their bearing surfaces anddeeply ribbed to prevent warping. All three doors are operatedtogether, the operating mechanism connecting to each side ofeach door, thus preventing them getting cocked and binding. Figure 2 shows a pan applied to Wooten fireboxes on the Cen-tral Railroad of New Jersey, which is largely constructed ofcast iron. It has two hoppers, the rear one having a door slidingin a longitudinal direction and the front one, double doors eachset on an incline and sliding in a lateral direction. The fronthopper lias no operating gear. A design similar to this front hopper is used on the LehighValley Railroad for both hoppers of pans on Wooten fireboxlocomotives. In this case, however, the pan is built up of steelplates, a casting being riveted on the bottom of the hopper toform the guide. The double sliding doors are arranged to hookover
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
