Читать книгу The Handyman's Book of Tools, Materials, and Processes Employed in Woodworking - Paul N. Hasluck - Страница 141

WHY THE SCRAPER CUTS.

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The correctly sharpened scraper is a real cutting tool, and not as its name suggests—and as in practice it often is—a mere abrader of the surface. When in good working trim, the scraper should, if desired, take off shaving after shaving perfectly uniform in thickness, and nearly as wide as the cutting edge is long. But such a performance is rarely required of it, and never when the plane has previously done its work well. Too much emphasis cannot be laid on the fact that the proper duty of the scraper is not to make a surface, but to correct the irregularities on it. In explanation of the cutting action of the scraper, a diagrammatic figure is shown (Fig. 414). This illustration correctly illustrates the cutting principle, though it does not represent a true section of the scraper. In use, the scraper is held firmly in both hands and tilted forwards, away from the operator, until the cutting edge grips the surface of the wood, exactly as shown in Fig. 415. It is then kept steadily at this angle, and made to cut a fine shaving at each stroke as it is being pushed away from the operator in the direction from E to F (Fig. 415).

The Handyman's Book of Tools, Materials, and Processes Employed in Woodworking

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