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The concentric solid lines represent the growth rings of the log or section thereof. The dotted straight line (figs. 3, 4, and 5) and circular or curved (figs. 1, 2, and 6) represent the course of the knife edge as it passes through the flitch. The medullary ray is represented only in figure 6 as a solid radial line because of its significance in this method of cutting. (See Rift) The "stay log" is a heavy casting as illustrated, reaching both ends of veneer lathe (with chucks retracted). There must always remain a backing board or core of some sort which was the portion necessary to hold the flitch for cutting.
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