. The railroad and engineering journal . ing a web and rim of uniform section and texture, and securingin the tread of the wheel a condensed and filirous metal of greatdurability and tensile strength. This, the inventors claim, isaccomplished by compressing the metal of the ingot from the center toward the periphery, and by rolling down the face ortread by means of movable rolls. In the accompanying drawings, fig. S is a sectional plan ofthe machine with a finished wheel in place between the rolls;fig. g is a vertical plan showing the position of the rolls ; is a side elevation showing
. The railroad and engineering journal . ing a web and rim of uniform section and texture, and securingin the tread of the wheel a condensed and filirous metal of greatdurability and tensile strength. This, the inventors claim, isaccomplished by compressing the metal of the ingot from the center toward the periphery, and by rolling down the face ortread by means of movable rolls. In the accompanying drawings, fig. S is a sectional plan ofthe machine with a finished wheel in place between the rolls;fig. g is a vertical plan showing the position of the rolls ; is a side elevation showing the bedplate and rolls; fig. 11shows a section of the casting of the wheel ingot before rolling,and fig. 12 shows the movable friction and steadying roll. In these illustrations .-/ is the bed plate ; /> and fare themain and side housings ; D is the tread roll, which is mademovable by means of the screws .S or by hydraulic pressure,and has grooves on its face of the requisite form to give sizeand shape to the tread or flange of the w
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
