Shin′gle-riv′ing ma-chine′.
One in which a block is fed to the knife, or the knife to a block, from which a shingle is split with the grain. See also shingle-machine. In the example (Fig. 4997), the block lies in the hopper, and a portion projecting below is split therefrom between the stationary and reciprocating knives X L, which are in the same plane. The blank is then forced to the feed-rollers, which carry it between the upper and lower shaving-knives and the edging-knives E2 F2; the upper knife Y is gradually depressed to give the taper to the shingle passing endwise beneath it. The shingle is split, shaved, tapered, and jointed at one continuous operation. |
| Shingle riving and planing machine. |
