. American engineer and railroad journal . zontal machinecan be made with either single or double head, each of whichwill carry from one to twenty spindles, ranging from Vz to IY2ins. in diameter. Fig. 2 illustrates the neat manner in which the CincinnatiMachine Tool Co. can easily arrange one of their standard drillpresses for a motor drive. The motor bracket is of simpledesign and is clamped to the frame at the rear. The motorshown is a 2 Northern Electric and is mounted to beltto the tight and loose pulleys. Another interesting featureof this machine is the geared tapping attachment. T
. American engineer and railroad journal . zontal machinecan be made with either single or double head, each of whichwill carry from one to twenty spindles, ranging from Vz to IY2ins. in diameter. Fig. 2 illustrates the neat manner in which the CincinnatiMachine Tool Co. can easily arrange one of their standard drillpresses for a motor drive. The motor bracket is of simpledesign and is clamped to the frame at the rear. The motorshown is a 2 Northern Electric and is mounted to beltto the tight and loose pulleys. Another interesting featureof this machine is the geared tapping attachment. The leverwhich hangs parallel to the main spindle operates a doubleclutch which engages the spindle with either train of gear-ing, rotating it in either direction, or allowing it to go freeif the clutch is in its middle position as shown in the illustra-tion. The clutches can readily be engaged or disengaged whilethe machine is in motion, thereby allowing the operator to Si ,-i i Mm II, 1904. AMERICAN ENGINEEB A N 1I IIAILROAD JOURNAL. 3G3. 4.—MOTOR-DRIVEN RADIAL DRILL.— DBESES MACHINE TOOL CO. MULTIPLE DBILLINQ M WHINE Tool. 00. drill a hole, remove the drill and substitute a tap, and tap thehole without stopping the machine. Fig. 3 shows a 50-in. vertical drill made by Bement, Miles &Company, and on exhibition at the St. Louis Exposition. At-tention is at once attracted to the neat and substantial wayin which the motor is applied. The 21, Northern Electricmotor has a speed range from 350 to 1,750 by speedcontrol, giving in combination with the change gears, spindlespeeds from 8V4 to 220 The spindle is counterweightedami the bevel gears which drive it run in oil and are enclosedin a dustproof casing. It has power and hand feeds and rapidvertical adjustment by hand lever, and has 18 ins. table has compound slides and vertical adjustment bypower. A full universal motor-driven radial drill made by theDreses Machine Tool Company i
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
