. The locomotive engineer . bushing r. which is shrunk to the boiiyI. The cfnicr < is the guide of cutters adjustedby spring d. For grinding the cutu-rs. removec ff by mejiiis of a slot provided, similar to u drill«H^kel. which fs not shown, and the cutters canbe taken out and be replaced or n-littcd whenneccsMiy. The cutting edges of cultere shouldnot be gnaind atraighl, the follower or secv^ndcutter should be about 2 taper to the Bret thirti like the flrsl. and the fourth like the second^thus relieving the culling and making a smoothhole. A rase, of weak feeding aHachmenl ondrill
. The locomotive engineer . bushing r. which is shrunk to the boiiyI. The cfnicr < is the guide of cutters adjustedby spring d. For grinding the cutu-rs. removec ff by mejiiis of a slot provided, similar to u drill«H^kel. which fs not shown, and the cutters canbe taken out and be replaced or n-littcd whenneccsMiy. The cutting edges of cultere shouldnot be gnaind atraighl, the follower or secv^ndcutter should be about 2 taper to the Bret thirti like the flrsl. and the fourth like the second^thus relieving the culling and making a smoothhole. A rase, of weak feeding aHachmenl ondrill press, where the cutter would not do workrvquircd, caused by the additional friction ofthe Kinu-or spring rf, remove f^ and put a common reamer corresponding with the same taper asg, drill the small holes first and operate the cullerin the same luanucr. For enlarging the si/.e ofholes use tlie siune shell and make offset this cutter wc have been able to cut 200 bolesin 10 hours. C. G. Bretting. Biain^rd, A Sui[si«ttXon itii CrutVQ Nliel Sinya. AHiYur T/if L<ifm»lifr Enginrrr: In thinking over the different methods of slayiugIhe crown sheet, the following idea presented of the double crown bare fostenitl toIhe crown sheet, with stays to outtiide shell, Isuggest single flange plates riveted to the shell, asshown in sketch, with stays to crown sheet. The slays being of the same length and hnngingperpendicular. The pressure on crown sheet is
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1888
