Deerfield and Roundabout Railway
LFLSRM Inc.
New Car Wheel Manufacturing
by J. G. Hook
(Scroll down for all illustrations. Captions above illustrations.)
Second operation continued. The right tool bit begins facing the front hub before the middle tool bit begins facing the rim. Spindle speed 370 rpm., 196 sfpm. at the beginning of the right tool bit cut, lathe power cross feed rate 0.003 ipr.
Second operation continued. Tandem facing of rim and front hub. Spindle speed 370 rpm., 460 sfpm. at the beginning of the middle tool bit cut, lathe power cross feed rate 0.003 ipr.
Second operation continued. The right tool bit continues facing the front hub after the middle tool bit has completed facing the rim. The tool bits are mounted in such a way that the cutting of the middle tool bit was begun and completed during the longer cut taken by the right tool bit.
