. Railway mechanical engineer . Fig. 7—Slab Mitier for Machining Rods guide block, the hole in the link and lift shaft bracket (seeFig. 6) and all other interior grinding that is necessary. M.\IN .AND SIDE RODS Both the slab and vertical milling machines are used to;i large extent on the main and side rods. Fig. 7 shows aLToup of side rods on one of the slab milling machines, having just been milled. Eight rods are milled at a. |< .// H Fig. 8—IMIIIIng Cutter for Slab MlllPng time. The illustration shows seven, one of the rcxis havingbeen removed. The sides of the rods are milled
. Railway mechanical engineer . Fig. 7—Slab Mitier for Machining Rods guide block, the hole in the link and lift shaft bracket (seeFig. 6) and all other interior grinding that is necessary. M.\IN .AND SIDE RODS Both the slab and vertical milling machines are used to;i large extent on the main and side rods. Fig. 7 shows aLToup of side rods on one of the slab milling machines, having just been milled. Eight rods are milled at a. |< .// H Fig. 8—IMIIIIng Cutter for Slab MlllPng time. The illustration shows seven, one of the rcxis havingbeen removed. The sides of the rods are milled in tliesame manner, two rods usually being milled at one inserted tooth cutter used for this work is shown inFig. 8. The body is made of axle steel and the 16 teethare made of high speed steel. They are formed hot in adie to the shape shown in the drawing. They are insertedin corresponding slots in the axle steel body and are heldin position by six thimbles having a tapered, flattened sur-face where they bear against the teeth. These thimbles areheld in the body of the cutter by ;~^-in. machine cutters are S^^-in. in diameter and 11 in. long. Threeof them are used on one mandrel as shown in Fig. 7. The main rods are handled in the same manner, with 312 RAILWAY MECHANICAL ENGINEER Vol. 91, No. 6 the exception of the stub ends which are planed to within1/32 in. of the required dimension, 1/64 in. from each s
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
