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Hugh Jardine
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Processing Of Stones Or Stones Resemblance Materials
(AREA)
Abstract
5380. Jardine, H. March 1. Hand tools.-A removable bit B is held between the checked or stepped part of the holder Ax and a loose plate A<1>, which are secured together by screws C. In Figs. 1 and 3, these screws work in tapered nuts or blocks which fit in bevelled grooves in the holder and plate. The bit may have long parallel teeth on one or both sides, as in Fig. 4, or it may be plain. A rib b may be formed on it, as in Figs. 4, 7, and 8, to assist in securing it in the holder.
GB189705380D1897-03-011897-03-01Improvements in Stone Cutting Tools.
ExpiredGB189705380A
(en)