. American engineer . ional view of the maindriving clutches located in thesaddle between the column operatinglever for start-i n g , stoppingand reversingthe machine isconveniently lo-cated at thefront of thesaddle, just to the left and be-Idw the hand wlieel. Twobevel gears operated by the re-versing clutch and engaging athird, drive the iirst speed shafton which three speed changegears are mounted. These aredoubled by the back gears, andthese in turn are doubled bj thespindle gears, shown in the sec-tional illustration of the saddle,thus giving 12 speed changesfor the spindle. Sixt
. American engineer . ional view of the maindriving clutches located in thesaddle between the column operatinglever for start-i n g , stoppingand reversingthe machine isconveniently lo-cated at thefront of thesaddle, just to the left and be-Idw the hand wlieel. Twobevel gears operated by the re-versing clutch and engaging athird, drive the iirst speed shafton which three speed changegears are mounted. These aredoubled by the back gears, andthese in turn are doubled bj thespindle gears, shown in the sec-tional illustration of the saddle,thus giving 12 speed changesfor the spindle. Sixteen boringand drilling feeds are provided,and also sixteen milling feedsfor the saddle and the rapid traverse at con-stant speed and independent of the feeds is provided for thespindle, saddle, table and carriage, and automatic limit stopsare arranged for movements in all directions in addition to ad-justable stops for the feeds of the talile. .All gearing in the saddle is enclosed and runs in oil. .\ pump. •m^m ^--d Driving Clutcti on RochesterBoring Machine. lifts the lubricant to a reservoir at the top of the saddle fromwhich it is distributed by pipes to the different bearings, theoverHow running over the gears. The operation of this system isentirely automatic. The feeds and traverses in the saddle are transmitted to thetable by the vertical shaft from the bottom of the saddle con-necting through bevel gears to a horizontal shaft in the bed.\i the table, the feed is distributed either to the cross feed ofthe table or to elevate the saddle and outer support. Whilepower feed for lateral motion of the table is not included, it canbe supplied when specified. All screws giving movement to thetable are located between the ways in the center of the resist-ance, so that all tendency of swiveling or cramping action isavoided. The nuts on the screws for the various traverses aremade in two parts to provide for taking up wear and back-lash,and all nuts rotating on screw
Size: 987px × 2531px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
