. American engineer and railroad journal . GN OF DRESES RADIAL DRILL. is clamped by the lever at the rear of the vertical shaft carryingthe worm that drives the feed. The quick return is through thefour-handled pilot wheel which automatically engages and dis-engages the feed. The feed is of the all-geared type. It hasfour changes which are varied by a ducking key in connectionwith the knurled shiftable knob on the vertical worm spindle has an automatic stop and is graduated for teeth are cut away at the extreme end of the rack to avoid breakage when the spindle is fed to th
. American engineer and railroad journal . GN OF DRESES RADIAL DRILL. is clamped by the lever at the rear of the vertical shaft carryingthe worm that drives the feed. The quick return is through thefour-handled pilot wheel which automatically engages and dis-engages the feed. The feed is of the all-geared type. It hasfour changes which are varied by a ducking key in connectionwith the knurled shiftable knob on the vertical worm spindle has an automatic stop and is graduated for teeth are cut away at the extreme end of the rack to avoid breakage when the spindle is fed to the limit of its travel. A novel feature of the machine is the connection of thecolumn carrying stump, column and table. The column fits intothe stump and rests on rollers for easy movement. The tableencircles the lower stump and a small part of the column andby depressing the lever shown in front, a screw binds all threesubstantially together. This lever is always within reach ofthe left hand of the operator, without changing his DRESES RADIAL DRILL. A tension screw below the lever always insures a working table is supported at its outer end by a stand having .inadjusting screw so that it can always be kept at right angleswith the spindle. The machine is built with a cone pulley for belt drive, or con-stant or variable speed motors may be mounted on an attachedsub-base. It drills to the center of a 73-in. circle, takes 58 the spindle, and weighs about 3,600 pounds. An Elaborate Train Ferry.—The train ferry between Sass-nitz, Germany, and Trelleborg, Sweden, a distance of 65 miles,was placed in operation by the two governments during the pastsummer. The ferries make the passage in four hours. Each is370 ft. long over all, 53^ ft. wide, has a maximum speed of16% knots and will carry eight cars. The boats are fitted aspassenger steamers, and in addition to carrying the cars havedining room, smoking room, and berth accommodations for 141passengers. The s
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
