Fig. 2965.
[Fig. 2964] represents two views of the forgings, and it will be readily perceived that they are very difficult to make on account of the taper hole, which is shown in dotted lines. The first operation was to take a bar of steel 61⁄2 inches square and punch a hole, as at a [Fig. 2965].
Fig. 2966.
Fig. 2967.