Century Dictionary and Cyclopedia
- n. A tool with a sharp edge intended or adapted for cutting, as distinguished from a boring-, piercing-, planing-, riving-, sawing-, or other tool.
“Since the beginning of 2006, Berkshire has spent nearly $17 billion buying private companies lock, stock and barrel, including an Israeli cutting-tool maker and a distributor of electronic components.”
“The shank is often made of mild steel in order to save valuable cutting-tool material (high-speed steel) or because the properties of other cutting-tool materials (hard metals, ceramic cutting-tool materials, diamonds) require this.”
“One hollow is cut during each forward travel of the carriage; and, when such travel is finished, a cam-disk, p, placed on the shaft, n, lifts the tool-carrier, b, and thus draws the cutting-tool out of the hollow cut by it, so that the carriage cam can then move back without restraint.”
“In the whole line of tools which the machinist must take care of daily, there is nothing as important as the lathe cutting-tool, and the knowledge which goes with it to use the proper one.”
“The upper surface of this fuze is graduated into seconds and fourths of seconds; and it is only necessary to lay bare the composition contained in the fuze, by the cutting-tool, to prepare the projectile for instant use.”
“The minute proportions of these devices will be apparent by a glance at the accompanying illustrations, in which the object on the left represents a common pin, and the objects on the right the cutting-tool and reproducing stylus, all actual sizes.”
“Instead of tin-foil, a wax cylinder is employed, the record being cut thereon by a cutting-tool attached to a diaphragm, while the reproduction is effected by means of a blunt stylus similarly attached.”
“The cutting-tool and stylus are devices made of sapphire, a gem next in hardness to a diamond, and they have to be cut and formed to an exact nicety by means of diamond dust, most of the work being performed under high-powered microscopes.”
“It was early recognized that a single needle for forming the record and the reproduction therefrom was an undesirable arrangement, since the formation of the record required a very sharp cutting-tool, while satisfactory and repeated reproduction suggested the use of a stylus which would result in the minimum wear.”
“Another important change was in the nature of a reversal of the original arrangement, the cylinder or mandrel carrying the record being mounted in fixed bearings, and the recording or reproducing device being fed lengthwise, like the cutting-tool of a lathe, as the blank or record was rotated.”
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