. American engineer and railroad journal . rollers in fixed position with respect to each other, and are,themselves, reciprocally held by the rollers. The arrows in Fig- 3-. fig. 2 show the directions in which the axle and the rollers re-spectively advantage gained by the iniermeshed tubular rollers is shown by fig. 3. When full length rollers were employed theadjacent bearing lines were at the points A and IS ; while thatportion of the journal included between its perimeter and thechord A B represents the destructive wedging force exerted,and which had hitherto been one of the obs
. American engineer and railroad journal . rollers in fixed position with respect to each other, and are,themselves, reciprocally held by the rollers. The arrows in Fig- 3-. fig. 2 show the directions in which the axle and the rollers re-spectively advantage gained by the iniermeshed tubular rollers is shown by fig. 3. When full length rollers were employed theadjacent bearing lines were at the points A and IS ; while thatportion of the journal included between its perimeter and thechord A B represents the destructive wedging force exerted,and which had hitherto been one of the obstacles to the con-struction of a successful roller bearing. By making the rollersin sectional lengths, and so placing them that they break joints,intermediate bearing lines ate created, as at C, thus securingthe practical continuity of the bearing and reducing the wedgeline to the chord A C, which is nearly coincident with the curveof the journal. The bearing is certainly simple in form, and includes veryfew parts. The tubes are of steel of the best quality, and areof sufhcient strength to resist crushing. The end thrust of the axle is provided against by receivingit
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
