. American engineer and railroad journal . COMPONENT PARTS OF THE NEW ADJUSTABLE HUB PLATE. satisfactory. The brass driving box liner is no doubt superiorto special hard babbit for this purpose, but the accumulation ofend play is inevitable, and when m serious proportions rendersthe proper maintenance of rod bushings, knuckle pins, etc., amatter of impossibility without frequent renewals. In the patented hub plate which is herein illustrated the some-

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering