Descriptive Catalogue of the Woods Commonly Employed in This Country for the Mec
Descriptive Catalogue of the Woods Commonly Employed in This Country for the Mec
Dr Royle
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15, circumstances are still less favourable; there being no perceptible contraction in the length of the fibres, the whole of the shrinking takes place laterally, at right angles to them, and the work becomes oval to the full extent of the contraction that occurs in the fibres. The plank- wood is almost solely employed for large discs which would be too weak if cut out transversely ; and in some cases for objects made of those ornamental woods which are best displayed in that section, as the tu...lip, rose, king, zebra, partridge, and satin woods. Specimens of oak from ancient buildings are sometimes thus worked, but in all such cases the wood should be exceedingly well dried beforehand ; otherwise in addition to the inconvenience arising from the greater departure from the circle, the pieces will warp and twist, an effect that more generally concerns the joiner's art, and to the consideration of which we will now proceed. When the green wood is cut up into planks, boards, and veneers, the splitting which occurs in the transverse section is less to be feared than distortion or warping, from the unequal contraction of the fibres.
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