A shorter course in woodworking; a practical manual for home and school . planed and necessary plan-ing can usually be done ata near-by mill for a smallsum, the planer can beomitted from a limitedoutfit much better thanthe circular-saw o r t h ejointer, although it is animportant part of a com-plete equipment. In thesingle surfacer (Fig,274) the wood is movedalong over the smooth bed of the machine by means of feed rolls with corrugated surface, and passed under a rapidly revolving cylinder to which cutters or knives are bolted (Fig. 275). These knives plane the sur-face (Fig, 276). There shou
A shorter course in woodworking; a practical manual for home and school . planed and necessary plan-ing can usually be done ata near-by mill for a smallsum, the planer can beomitted from a limitedoutfit much better thanthe circular-saw o r t h ejointer, although it is animportant part of a com-plete equipment. In thesingle surfacer (Fig,274) the wood is movedalong over the smooth bed of the machine by means of feed rolls with corrugated surface, and passed under a rapidly revolving cylinder to which cutters or knives are bolted (Fig. 275). These knives plane the sur-face (Fig, 276). There should be freedom from vibration, the feed must be steady, and the knives must describe a small circle at high speed to ensure the best work. The knives have pieces of steel fitted to them, on a similar principle to the cap of an or- Fig. 274 dinary hand plane-iron (Fig. 276 and page 36), so closely that chips cannot be forced between them. With a double surfacer the upper and lower sides are both planed at once, and machines are made which plane all four surfaces at Common Tools and Their Uses 107 The thickness of the planing is regulated by raising or loweringthe table on which the wood is carried along. If a piece is to be made
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorklondongpput
