The construction of the feed motion is shown in [Figs. 3103], [3104], and [3105].
On the saw arbor is the feed cone c, [Fig. 3103] having four steps so as to give four rates of feed. This cone connects by belt to feed cone d, whose shaft drives feed pulley e, which drives f by belt connection. f drives two worms shown by dotted lines at h and i, and these drive the worm wheels which drive the feed rolls, one of these worm wheels being shown at k, in the side view, [Fig. 3102].
Fig. 3103.
The feed roll l ([Fig. 3103]) is supplemented by a fence or gauge face p, which guides the work closer up to the saw than would be possible with a roll, and a supplemental roll is provided at m, thus affording a guiding surface for the work from m to the end of p. The stand for guide roll l fits in a slideway, and is adjustable along it by means of the screw s. Similarly the stand for roll n is fed along its slideway by screw r. There are three separate sets of saw guides, all of which are shown in the plan view [Fig. 3103], and of these the top ones, a, b, c, d, e, f, g, and h are adjustable by nuts. The front ones, l, m, n, o, p, q, and the back ones, i, j, k, and r, s, t, are adjustable by means of the wedges w. At z is a wedge for adjusting the spreader w so as to keep it close to the saw whatever the diameter of the latter may be.
Fig. 3104.