. Railway mechanical engineer . llars, at 10 min. each. 1 hr. 0 liners and fitting driving box saddles, six boxes at 17H min. each 1 hr. 45 min. The boxes are next transferred to the 60-in. planer, where theliners on the shoe and wedge faces are planed. The planer isarranged so that twelve boxes can be planed at once, six linedup on either side of a box face plate, thus utilizing both planerheads. A detail of the face plate is shown in one of the draw-ings. This method assures perfectly parallel surfaces. When the liners have been finished the boxes are transferredto the Bullard
. Railway mechanical engineer . llars, at 10 min. each. 1 hr. 0 liners and fitting driving box saddles, six boxes at 17H min. each 1 hr. 45 min. The boxes are next transferred to the 60-in. planer, where theliners on the shoe and wedge faces are planed. The planer isarranged so that twelve boxes can be planed at once, six linedup on either side of a box face plate, thus utilizing both planerheads. A detail of the face plate is shown in one of the draw-ings. This method assures perfectly parallel surfaces. When the liners have been finished the boxes are transferredto the Bullard vertical turret lathe, where the hub face is fin-ished and the brasses bored to fit the journals. The two opera-tions can be accomplished at one time, but this practice is <, 1915 RAII.\\■A^■ A(;k flAZHTTK, MKCHANICAL KDITION 529 not followed, as it would residt in mixing the brass and babbittchips. Both operations are performed, however, with the onechucking. The boxes are handled while at the planer and verti-. cal turret lathe by a jib crane with air hoist trolley. The timerequired for the different operations is as follows: Boring brasses to fit axles, including one roughing and onefinishing cut. and relieving brass front and back 1/32 in.,six boxes at 15 min. each 1 hr. 30 min. Facing babbitt hub, six boxes, at 5 min. each 30 min. Planing shoe and wedge faces, 1 roughing and 1 finishing cut, six boxes at a time . 4 hr. 30 min. The total labor time required to handle the entire set of boxesfrom the lye vat through the shop until they are ready to go onthe axles, it will be seen, is IS hr. 9 min. In every case the opera-tions are performed by one man, the handling being done bythe jib cranes. A POSSIBLE SUBSTITUTE FOR ACETYLENE INWELDING AND CUTTING BY J. F. SPRINGER Gas welding and gas cutting have very full\- proved theirpractical value, and to-day the question to be considered is notso much whether or not certain lines of work may be done withgas, but whet
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
