. Railway mechanical engineer . Back End Main Rod Brass in Position for Boring and Facing Rod Brass Being Reversed After Boring and Facing One Side chuck, the horizontal jaws of which operate at right to tlie main jaws. These secondary chucks may be released andend main rod brasses and driving boxes. The device was de- revolved througli 180 deg., and again accurately located in asigned bv Frank B. Moss, general foreiiiaii. and since it has horizontal position by the pressure of the Details of Self-Centeiing Ctiucl< for Back End Main Rod Brasses and Driving Boxes been in use l
. Railway mechanical engineer . Back End Main Rod Brass in Position for Boring and Facing Rod Brass Being Reversed After Boring and Facing One Side chuck, the horizontal jaws of which operate at right to tlie main jaws. These secondary chucks may be released andend main rod brasses and driving boxes. The device was de- revolved througli 180 deg., and again accurately located in asigned bv Frank B. Moss, general foreiiiaii. and since it has horizontal position by the pressure of the Details of Self-Centeiing Ctiucl< for Back End Main Rod Brasses and Driving Boxes been in use laying out brasses and boxes for boring has been After having finished the sides and inside faces of the flanges discontinued altogether as the chuck accurately centers and of a pair of back end main rod brasses they are placed in the chuckclamps them in line with the inside faces of the flanges. as shown in one of the illustrations, the universal action ot the 239 240 RAILWAY AGE GAZETTE, MECHANICAL EDITION Vol. 89, No. 5 chuck jaws accurately centering the brass when they are brass is then bored and one side faced and filleted. Themain jaws of the chuck are then released and the brass, stillclamped in the secondary jaws, is inverted. After closing themain jaws the brass is faced and removed. When linishing these brasses by the old method i)f laying up and machining in an engine lathe, about two hourswas required on each set, at a cost of 77 cents. By the use ofthis
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
