. American engineer and railroad journal . bolster and bearingon the extension of the centre truck bolster mentioned above. One of these cars has been tested for curving and it wasfound that it would take a 16-deg. curve without trouble. Itis believed that they will take any over which othercars are operated. We are indebted to Mr. James F. DeVoy, mechanical engi-neer of the Chicago, Milwaukee & St. Paul Railway for thedrawings and photographs shown herewith. PRODUCTION IMPROVEMENTS. The accompanying illustrations show some special deviceswhich are being used with good results at the Win
. American engineer and railroad journal . bolster and bearingon the extension of the centre truck bolster mentioned above. One of these cars has been tested for curving and it wasfound that it would take a 16-deg. curve without trouble. Itis believed that they will take any over which othercars are operated. We are indebted to Mr. James F. DeVoy, mechanical engi-neer of the Chicago, Milwaukee & St. Paul Railway for thedrawings and photographs shown herewith. PRODUCTION IMPROVEMENTS. The accompanying illustrations show some special deviceswhich are being used with good results at the Winona (Minn.)shops of the Chicago & Northwestern Railway Company. Fig. 1 shows the application of a special mandrel and toolholders for turning eccentrics on a boring mill, and Fig. 2 showsthe mandrel and also a chuck used for boring the tool holder at the left, in Fig. 1, carries two high-speedtools % in. square, and the holder at the right has four high-speed tools ■! in. square set at the proper distance for web-.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
