. American engineer and railroad journal . 342 AMERICAN ENGINEER AND RAILROAD JOURNAL. 3 1 : u= - a OJ op obi. O soo o T oz &o oo Q oz <!<o wp ofa o June, 1904. AMERICAN km:im;i:i: and railroad JOURNAL. A NEW SEMI-RADIAL DRILL. Bk gjoan Dull imi Tool Company. A radical and interesting design of drilling machine hasl and placed upon the market by theBlckford iiiin and Tool Company, Cincinnati, Ohio, the well-known builders «1 heavy duty and rapid p on machine1liis tool is of an unusual design, which they termmi-radial, the intention being to produce a toolol great rigidity and simplicity,
. American engineer and railroad journal . 342 AMERICAN ENGINEER AND RAILROAD JOURNAL. 3 1 : u= - a OJ op obi. O soo o T oz &o oo Q oz <!<o wp ofa o June, 1904. AMERICAN km:im;i:i: and railroad JOURNAL. A NEW SEMI-RADIAL DRILL. Bk gjoan Dull imi Tool Company. A radical and interesting design of drilling machine hasl and placed upon the market by theBlckford iiiin and Tool Company, Cincinnati, Ohio, the well-known builders «1 heavy duty and rapid p on machine1liis tool is of an unusual design, which they termmi-radial, the intention being to produce a toolol great rigidity and simplicity, which will be par-tlcularly serviceable tor many classes, of work. Itwill be received with Interest by a large number ofmachine lool users who require very heavy and stifftools iii their rapid machining processes. The criticism that would naturally be turnedagainst the a e ol an overhanging cone, such as ishere made use Hi at the top of the column, will bedispelled after a study of the extremely long andrigid bearing which is used for that co
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
