Читать книгу The Handyman's Book of Tools, Materials, and Processes Employed in Woodworking - Paul N. Hasluck - Страница 102

Several excellent contrivances are now made for spring-setting, so arranged that all the teeth can readily be set to one line, and when the contrivance is fixed it is impossible to overset a tooth; and should the saw be found to bind at any particular point, the teeth can, with this contrivance, be set into line, and any excessive friction reduced. Fig. 303 illustrates such a set, adapted for setting hand, circular, mill, or band saws. Its operation will be readily understood: Hold the saw C with the teeth upwards; adjust the die B (Fig. 303), by means of the screw A in the end of the set, so that the angle on the die B will come near the root of the tooth on a fine saw; on a coarse saw, the angle of the die should strike the tooth about two-thirds down from the point. Set the guard E on the under side of the set forward to about in. from the die B; then let the set hang loose on the saw. The space between the tooth and the die will then show the amount of set that is being given to the saw. To increase the set, move the guard E still closer to the die; to decrease the set, move the guard back. Many other excellent saw-sets may be obtained at a moderate price.

Figs. 301 and 302.—Testing Set of Saw Teeth.

Fig. 303.—Patent Saw-set in Use.