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Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
se a slower motion in the feeding than in the return motion of the pusher. Stave sawing and jointing machine. Stave-riv′ing ma-chine′. One for splitting balks of timber into slabs suitable for making staves. The slab of rived timber undergoes treatment for bending, sawing to a length, hollowing, backing, dressing, chamfering, crozing; some of these operations, however, are performed after the staves are set up. The riving of staves is usually by frow and mallet (see Fig 2108). Dorr's riving-tool has a set of knives in a frame, so as to check the end of the balk for a number of staves (or shingles) at once. The knives are not quite parallel, but have divergence answering to the radial marks in the timber; for instance, the medullary rays in oak and some other woods. Stave-saw′ing ma-chine′. （Coopering.) a. One for sawing staves from the log, bolt, or balk. b. One for sawing the edges of staves, otherwise known as jointing. See stave-jointing machine. The