. American engineer and railroad journal . s an average output of 150 brasses perhour. It is entirely automatic; all that the operator has todo is to place the brass on the table, press the treadle downand release it when the brass is completed. In adapting themachine for this class of work the vertical feed screw for thetable was removed and replaced by an air cylinder and height to which the table travels is regulated by meansof an adjusting wedge, as shown. An automatic chuck is at-tached to the table, which is operated by an air cylinder; whenthe brass is placed on the table and
. American engineer and railroad journal . s an average output of 150 brasses perhour. It is entirely automatic; all that the operator has todo is to place the brass on the table, press the treadle downand release it when the brass is completed. In adapting themachine for this class of work the vertical feed screw for thetable was removed and replaced by an air cylinder and height to which the table travels is regulated by meansof an adjusting wedge, as shown. An automatic chuck is at-tached to the table, which is operated by an air cylinder; whenthe brass is placed on the table and the lever or treadle isoperated, air is first admitted to the chuck cylinder and thebrass is securely gripped. A further movement admits airbelow the piston of the table cylinder, raising the table andbringing the brass in contact with the milling cutter. Whenthe table has reached the wedge the operator releases thepressure on the treadle, the table returns to its proper posi-tion, the chuck releases, and as the brass is removed a stream. INSEBTED TOOTH ClTTEB FOB MILLING CAB BBASSES. of air through the hose clears the chips from the table. Whenlarge size milling cutters are used, or if the cutters are slight-ly dulled, the auxiliary cylinder shown above the machine isalso used. It prevents excessive stresses coming on the arborand arbor support. The arbor of the inserted tooth cutter is made from onepiece of machine steel. The tapered shank fits in the socketof the milling machine spindle. The outer end of the arboris supported by the bracket. The carbon steel cutters aredriven into milled slots. The end cutters for forming thefillet are secured by tapered keys. We are indebted for in-formation to Mr. M. D. Franey, superintendent of the shops. The Labgest Steamebs in the World.—A clipping, whichpurports to give a list of the ten largest steamers in theworld, has been going the rounds of the marine press. Thelist is as follows: Mauritania (Cunard), quadruple screw, turbine m
Size: 2673px × 935px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
