. American engineer and railroad journal . the machine will taketill the .ui there Is to take on a worn tire at a » In. feed 1 hi mat i d for taking cuts i In, dei p, 8 L6 In I--] .vith a ■ uiii. peed up to 80 n per minute The li Ive i 01 Ol 80 I. p. capacity, and I he motOl foi . I of 3 b p ■ apacll i The fa e plates aredriven by Internal b drive them being i ■ bi pi ■ - of the 11- in ■ • n\ ing I i tins at 3 to 4 i diameter than that usually I lath !i i Iberefore yerj much i ■ .im ed mak Ing the drive of each face plateundei ,i a hi patented driving do | I po ■ er of the machine to
. American engineer and railroad journal . the machine will taketill the .ui there Is to take on a worn tire at a » In. feed 1 hi mat i d for taking cuts i In, dei p, 8 L6 In I--] .vith a ■ uiii. peed up to 80 n per minute The li Ive i 01 Ol 80 I. p. capacity, and I he motOl foi . I of 3 b p ■ apacll i The fa e plates aredriven by Internal b drive them being i ■ bi pi ■ - of the 11- in ■ • n\ ing I i tins at 3 to 4 i diameter than that usually I lath !i i Iberefore yerj much i ■ .im ed mak Ing the drive of each face plateundei ,i a hi patented driving do | I po ■ er of the machine to be ut Hissed atlowing as hi tool m AMERICAN ENGINEER AND RAILROAD JOURNAL. steel will stand. The photograph shows clearly the applica-tion of these dogs. The dogs are arranged at sufficient dis-tance from the face-plates so that all drivers buW those havingthe main crank pin on them can be put in without movingthe movable head. On wheels which have the main crankpins, the movable head is traversed out, the wheels put in. per hour. This is done on an old Craven boring mill, the millbeing 20 years old. Thirty-four-in. truck tires with 2 retainingrings are finished at the rate of 11 in 10 hours on two smallermills, one of the mills being a Bullard and the other a Niles,shown in the list of machinery last month. Slotting.—An old 12-in. slotter, 22 years old, slots 12 castiron driving boxes for the brasses per day of 10 hours, thesize of the axle being 8% ins. Frame Planing.—The Shanks frame planer cuts at 25% minute and returns at 52 ft. per minute. A pair ofswitcher frames are planed on both sides and the top in 19hours with a %-in. cut and 7-32-in. feed. With one of thenew tool steels the tool cuts across the frame with one sharp-ening. Frame Slotting.—The Bertram 3-head frame slotter slots 4switcher frames of cast steel in 50 hours, 4 iron frames are
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
