Читать книгу The Handyman's Book of Tools, Materials, and Processes Employed in Woodworking - Paul N. Hasluck - Страница 161

Sometimes it is required to cut an oilstone into pieces, and this may be done by rubbing across it the edge of a sheet of soft iron or mild steel, using sand and water as required. Or instead, a piece of hoop iron (such as that used on casks) may be used with emery, either we or dry, as the cutting agent; cutting is quicker when the emery is dry. Another method is to insert a piece of an old hand-saw into a wooden block and to rub the stone on this, the teeth being, of course, set uppermost. An uncased oilstone, if brittle, is easily broken by a sharp jar or fall, and the two pieces will be of but little use until mounted. Get a piece of well-seasoned mahogany for a case, and mortise it out so that both portions of the oilstone can be fitted in fairly tight. Then, with one of the cements previously described, bed both portions of the stone in the case, taking care to keep close the broken joint of the stone. Let the stone stand for a time to allow the cement to become set, after which the surface should be rubbed down with silver sand and water on a flat stone. If the stone is used with care the fracture will scarcely be detrimental.