. American engineer and railroad journal . BW- i- I 10. 5. FIG. 6. FINISHING A CONNECTING KOD BRASS ON A VEBTICAX MILLING -MACHINE AT THE CONCORD SHOPS. AMERICAN ENGINEER AND RAILROAD JOERNAL. 229 1 1 11■1 Ilk Hi jy r~ v*>wH FIG. 7—MILLING BACK CYLINDEB HEAD. clamps, reverse them, reclamp them and finish the other sidewith the same tool. The bottom of the recess (Fig. 5) is fin-ished with an inserted tooth cutter in 2 cuts per side, each atthe rate of 14 ins. per minute. The tops of the flanges arefinished in separate cuts at the same rate of feed. Fig. 6illustrates the final operation by w
. American engineer and railroad journal . BW- i- I 10. 5. FIG. 6. FINISHING A CONNECTING KOD BRASS ON A VEBTICAX MILLING -MACHINE AT THE CONCORD SHOPS. AMERICAN ENGINEER AND RAILROAD JOERNAL. 229 1 1 11■1 Ilk Hi jy r~ v*>wH FIG. 7—MILLING BACK CYLINDEB HEAD. clamps, reverse them, reclamp them and finish the other sidewith the same tool. The bottom of the recess (Fig. 5) is fin-ished with an inserted tooth cutter in 2 cuts per side, each atthe rate of 14 ins. per minute. The tops of the flanges arefinished in separate cuts at the same rate of feed. Fig. 6illustrates the final operation by which the side of the box andthe fillet are finished at the same operation by means of around-nosed mill. For this purpose the rotary table is em-ployed, and great accuracy of finish is obtained. Fig. 7 shows a back cylinder head being finished on aBement-Miles vertical milling machine in another shop. Oneof the finished cylinder heads is shown in the work was formerly done on a planer, but because of the
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
