. Appleton's dictionary of machines, mechanics, engine-work, and engineering. ools used subsequently to the gouges or hook-tools have straight edges ; the chisel, Fig3481, is the most common; its position closely resembles that of the gouge, subject to the modificationscalled for by its rectilinear edge. If, for example, the edge of the chisel were just parallel with the axisof the cylinder, it would take too wide a hold; there would be risk of one or other corner digging intothe work, and the edge, from its parallelism with the fibres, would be apt to tear them out. All theseinconveniences ar
. Appleton's dictionary of machines, mechanics, engine-work, and engineering. ools used subsequently to the gouges or hook-tools have straight edges ; the chisel, Fig3481, is the most common; its position closely resembles that of the gouge, subject to the modificationscalled for by its rectilinear edge. If, for example, the edge of the chisel were just parallel with the axisof the cylinder, it would take too wide a hold; there would be risk of one or other corner digging intothe work, and the edge, from its parallelism with the fibres, would be apt to tear them out. All theseinconveniences are avoided by placing the edge oblique, as in Fig. 3487, in which the tool may be sup-posed to be seen in plan, and proceeding from right to left, Fig. 3477 being still true for the other view;the tool is turned over to proceed from left to right, and both corners of the tool are removed from thework, by the obliquity of the edge. The tool may be ground square across, but it must be then held ina more sloping position, which is less convenient. 3489. 3483. 3485. 3484.
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
