Fig. 2968.
Next the piece was fullered at b, c by the fuller a, [Fig. 2966], and cut partly off as at d. The fullering at b was then extended by a spreading fuller, shaped as at b, and the end e was drawn out. Then the piece was cut off at d. Next the spreading fuller was applied to c, and the forging appeared as in [Fig. 2967]. The end f was then drawn out, and the appearance was as in [Fig. 2968].
Fig. 2969.
The next operation was to enlarge the hole a, [Fig. 2965], by drawing taper mandrels through it, the mandrels being about 7 in. long, having 1⁄2-in. tapes on them, and being successively larger. With the last of these mandrels in the hole the hub was drawn out to length and diameter, leaving the forging roughly shaped, but having the form shown in [Fig. 2969].
