. American engineer and railroad journal . balls or crushing out of thecollars. Three changes of geared feed are provided, any one of which is instantly available by shifting a lever convenientlylocated. The hand worm feed, automatic stop and quick re-turn levers are. all within convenient reaching distance of theoperator. The table is fitted to the column by a square lockedslide and is clamped by straps. It is also supported under-neath by a 2-in. square thread screw, which acts as a solidjack and at the same time elevates the table. THE CHICAGO MIDGET ROTARY DRILL. A rather unique and novel
. American engineer and railroad journal . balls or crushing out of thecollars. Three changes of geared feed are provided, any one of which is instantly available by shifting a lever convenientlylocated. The hand worm feed, automatic stop and quick re-turn levers are. all within convenient reaching distance of theoperator. The table is fitted to the column by a square lockedslide and is clamped by straps. It is also supported under-neath by a 2-in. square thread screw, which acts as a solidjack and at the same time elevates the table. THE CHICAGO MIDGET ROTARY DRILL. A rather unique and novel but useful air drill having acapacity for drilling up to 3-1G in. in steel and known as theMidget Drill has been placed upon the market by the Chi-cago Pneumatic Tool Company. The illustration compares itin size to a mans hand. It weighs complete only 2% lbs.;the distance from the breast plate to the end of the spindleis 7% ins.; from the center of the spindle to the outside ofthe housing. 1 in.; the motor speed is 22,000 , and the. CHICAGO MIDGET PNEUMATIC DRILL. spindle speed, 2,000 It is of the rotary type and isadapted for drilling tell-tale holes in staybolts or general lightwork where accuracy is required. Baldwin Locomotive Works Output.—The number oflocomotives built at the Baldwin Locomotive Works duringthe year 1906 was 2,652, of which 201 were electric and 2,451steam; 281 locomotives were exported, the remainder beingfor domestic service. Of the 2,451 steam locomotives, 133were equipped with compound cylinders. This is the largestoutput ever attained at these works, the figures for the threeprevious years being 2,022, 1,485 and 2,250, respectively. Thenumber of men now employed at these works, exclusive ofthe Standard Steel Works, is about 19,000, and the numberof working days last year was 307. Mr. George BurnhamJr., retired from the partnership on Dec. 31, 1906. The G-reater Safety of Alcohol as compared with gasolinefor commercial uses is due to the
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
