. American engineer and railroad journal . ends are milled by theside head cutters shown laying on the table, which replacethose used for milling the panels. The bottom and bothsides of the rods shown on the machine have been finishedand the pile of chips on the floor shows the amount of ma-terial removed from the rods before they were turned panels are milled by an inserted plate type cutter 8 diameter and 3V4 ins. wide, operating at a speed of 25 a table feed of 1% ins. per min. The body of the rod aswell as the panel is tapered, and it is necessary to set one side
. American engineer and railroad journal . ends are milled by theside head cutters shown laying on the table, which replacethose used for milling the panels. The bottom and bothsides of the rods shown on the machine have been finishedand the pile of chips on the floor shows the amount of ma-terial removed from the rods before they were turned panels are milled by an inserted plate type cutter 8 diameter and 3V4 ins. wide, operating at a speed of 25 a table feed of 1% ins. per min. The body of the rod aswell as the panel is tapered, and it is necessary to set one sideof the rod straight and mill the panel, and then mill thestraight side with the vertical head cutter. The rod is thenset over to get the other side straight, and the panel iscompleted and the vertical head finishes the side. The topof the rod is then finished. The main rods for switch engines, class U-3-C, are not quiteas heavy as the rods for class D-ll, and as the panels are not January, 1906. AMERICAN ENGINEER AND RAILROAD JOURNAL. 25. MILLING CONNECTING BODS ON INGERSOLL MILLING MACHINE AT THE ANGUS SHOPi. _ui A ^-r Section at Back End Section a Front End r^ I r >i —: t r-f— -i^_ \ -\ -1-3— 4- («--Wf2- ■* IX h- - CONNECTING ROD FOR CLASS D-ll ENGINES. as wide or deep the method of handling these rods variessomewhat from that abojre. These rods as they come from theblacksmith shop weigh 822 lbs. each, and after they are milledweigh only 41G lbs., or the machine removes 406 lbs. of metalfrom each rod, or S12 lbs. per pair. As the panel is consider-ably smaller than for the D-ll rods, it is possible to work boththe vertical and horizontal cutters at the same time, althoughthey are operated at a lower feed than that used on theD-ll rods. These vertical cutters are solid, 4 ins. in diameterand 6 ins. long. They are set ahead of the side cutters, andas soon as they have worked far enough ahead the panelcutters in the horizontal heads, which are of the inserted platety
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
