. American engineer and railroad journal . The turret for a lathe carriage, shown in the accompanyingillustration, is interchangeable with the regular compoundrest, and is designed to have a stiffness and rigidity commen-surate with the increase in power required by the new toolsteels. The principal departure from the ordinary standardis in the plate on which the cross slide moves. This is madeto slide onto the regular carriage dovetail, and is secured inplace by four bolts in the tee slot of the carriage wings. Thecross slide is made with a bearing about twice as wide as thatof the compound r
. American engineer and railroad journal . The turret for a lathe carriage, shown in the accompanyingillustration, is interchangeable with the regular compoundrest, and is designed to have a stiffness and rigidity commen-surate with the increase in power required by the new toolsteels. The principal departure from the ordinary standardis in the plate on which the cross slide moves. This is madeto slide onto the regular carriage dovetail, and is secured inplace by four bolts in the tee slot of the carriage wings. Thecross slide is made with a bearing about twice as wide as thatof the compound rest. The plate is slotted, permitting thecross-feed nut to extend up and attach to the cross slide, sothat the cross feed may be applied to the turret. As no move-ment of the plate takes place, the regular carriage dove tail isrelieved of all wear. This turret was designed by the Lodge. HEW DRILL. NEW T1KKKT InR LATHE CARRIAGE. high speeds that can be used with high-speed drills. It hasa speed range of from 45 to 500 , and is adapted fordrills from % to 1% ins. in diameter. It is equipped with acompound table, having screw adjustments in all directions,so that the work, when clamped, may be quickly and accu-rately centered on the drill or reamer. This arrangement hasseveral advantages over the ordinary type of swinging allows the column to be designed to much better advantage,and the connection between the column and the table may bemade much more rigid, thus making it possible to do accu-rate work and at the same time use the heavy feeds withhigh-speed drills. It also obviates the difficulty experiencedwith the swinging table due to the split clamp getting out ofalignment, thus causing work, when accurately centered, todraw away from the drill when the*clamp is tightened of micrometers, whic h are provided, the holes may-be accurat
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
