. Railway age gazette . e three-way cocks areclosed. By the use of the aspirator bottle the oxygen may thenbe forced into the pipette, where it is absorbed by the copper.\\ hen no further reduction in the volume of the gas takes placethe remainder is drawn back into the burette, where the gradu-ations of the scale are so arranged that the percentage of be read directly to per cent. The operation of the apparatus is simple, no skilled labor beingrequired to obtain accurate results. The ammonia-ammoniumcarbonate solution may be prepared without difficulty by follow-ing the directi
. Railway age gazette . e three-way cocks areclosed. By the use of the aspirator bottle the oxygen may thenbe forced into the pipette, where it is absorbed by the copper.\\ hen no further reduction in the volume of the gas takes placethe remainder is drawn back into the burette, where the gradu-ations of the scale are so arranged that the percentage of be read directly to per cent. The operation of the apparatus is simple, no skilled labor beingrequired to obtain accurate results. The ammonia-ammoniumcarbonate solution may be prepared without difficulty by follow-ing the directions furnished with the apparatus. LOCOMOTIVE FRAME DRIL[. A high duty locomotive frame drilling machine recently de-veloped by the Newton Machine Works, Inc., Philadelphia. Pa.,has several features not usually included in this class of ma-chine. It is of exceptionally heavy box type construction in-tended to drive high speed drills to their maximum capacity,and has a weight of approximately 60,000 lli. The cross rail is. Frame Drill with Top Work Table in Forward Position rigidly supported by three uprights, the center one of which isplaced back of the others to allow clearance for the top worktahle. This table, which is in two sections, is moimted on themain bed plate, and as shown in the illustration the sections maybe moved back, either separately or in unison, to clear the mainwork table. This movement is controlled by a 5 hp. motormounted on the back of the base. The machine has two spindles each driven by a 10 hp. GeneralElectric motor having a speed range from 300 r. p. m. to p. The motor is mounted on and travels with the saddle 650 RAILWAY AGE GAZETTE, MECHANICAL EDITION 88, No. 12 and provides a fast reversing power traverse of the saddle onthe rail in addition to the hand adjustment. The rail saddleextends forvvard at right angles to the rail, permitting an in-and-out adjustment of the spindle saddle by hand. The spindlesare 4 in. in diameter with a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1913
