A shorter course in woodworking; a practical manual for home and school . Fig. 281by foot-power. Fig. 282 done. A boring attachment to a circular-saw ma-chine will do in ordinary cases, and there are many independent b o r i n g-machines made. Their use is easily Mortising- machines are in common use, and are often drivenThe principle is similar to that of cutting mortises byhand, but the work can be done more easilyand quickly (Fig. 283—Barnes). 100. Tenoning-machines (—Barnes)also save time and labor. See also page Sandpapering machines, throughwhich boards are ru
A shorter course in woodworking; a practical manual for home and school . Fig. 281by foot-power. Fig. 282 done. A boring attachment to a circular-saw ma-chine will do in ordinary cases, and there are many independent b o r i n g-machines made. Their use is easily Mortising- machines are in common use, and are often drivenThe principle is similar to that of cutting mortises byhand, but the work can be done more easilyand quickly (Fig. 283—Barnes). 100. Tenoning-machines (—Barnes)also save time and labor. See also page Sandpapering machines, throughwhich boards are run as through a planer,give a smooth and even surface (thoughusually not to be compared with that pro-duced by a scraping-machine) but the gritquickly dulls tools used afterwards. Simplemachines, shaped like a drum or a diskcovered with sandpaper, against which thewood is held, have long been in use and caneasily be contrived—also sanded belts forrounded surfaces. 102. The Lathe.—Most woodworkingj^., machines are of recent invention, but thelathe in its primitiv
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