. Railway mechanical engineer . of the cylinder maybe made to provide for the drilling of all holes at right anglesto the axis of the bore. The cylinder is carried on cone centers shown at A and Bin the drawing, which are mounted on the head stock C and thetail stock /) respectively. The head stock and tail stock areheavy iron castings which are mounted on cast iron bases E,the latter serving to raise the centers the required distance abovethe base of the radial drill. The tail stock is fitted with a leadscrew and clamp of the same type used on lathes; the hand-wheel F operates the lead screw
. Railway mechanical engineer . of the cylinder maybe made to provide for the drilling of all holes at right anglesto the axis of the bore. The cylinder is carried on cone centers shown at A and Bin the drawing, which are mounted on the head stock C and thetail stock /) respectively. The head stock and tail stock areheavy iron castings which are mounted on cast iron bases E,the latter serving to raise the centers the required distance abovethe base of the radial drill. The tail stock is fitted with a leadscrew and clamp of the same type used on lathes; the hand-wheel F operates the lead screw and serves as a means of ad-justing the distance between the cones when clamping the cylin-ders in place. Cone A may be revolved about its axis in either direction bymeans of the handwheel G and a gear train. To a flange atthe base of the cone is secured a driver plate which is bolted mounted directly upon the radial drill base, thus keeping thecylinder at about the same height as when swung about the axisof the valve Radial Drill Base GETTING THE MOST OUT OF TOOLS* BY B. VV. BENEDICTDirector Shop Laboratories, University of Illinois The problem of getting the most out of toolsis larger thanthe selection of the tool itself, as a number of factors enter intoit. The function of a tool is to produce work. Obviously atool has no power within itself to do this—it is not a force buta medium through which a force works upon some the elements of force and material must receiveequal consideration with the tool. Production is a three-sidedproblem of: (a) the worker as the producing unit; (b) thematerial as the unit worked upon; (c) the equipment as theunit worked with. Unless these elements have an effective working relationshipthe final results will not be acceptable even though the variouselements possess individual merit. Good tools must go hand inhand w-ith efficient methods. The essential difference between well organized and unor-ganized industry is
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
