Improvements in or relating to the cutting of teeth on files, saws and similar toolshaving serrated cutting edges

摘要

328,526. Unger, P. Aug. 27, 1929. File cutting; saws. - Teeth are cut on files, saws &c., by broaching. A series of files &c. e are mounted in a holder d on the table of a planing- machine and the teeth are cut in one stroke by a sectional broach i mounted on the cross-slide.