Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 7401537 | Cutter insert gum modification method and apparatus A method and apparatus for treating a cutter ring adapted to be used in tunnel boring operations; forming an initial cutter ring and heat treating the cutter ring prior to a laser client process; applying an alloy to the surface of the cutter ring adjacent to cuttin... | 07/22/2008 |
| 6180266 | Cutting tool A cutting tool having cutting edges made of a high speed tool steel exhibiting very high wear and anti-chipping resistances, and sufficient toughness is provided. The high speed tool steel consists essentially of by weight C:0.6 to 1.8%, Si:1.2% max, Mn:0... | 01/30/2001 |
| 5259200 | Process for the cryogenic treatment of metal containing materials A process for treating an article of metal containing material such as tool steel so as to improve the properties such as shockability, wearability, stability and hardness of the article. In one embodiment, the process comprises immersing the article at a... | 11/09/1993 |
| 5041173 | Lapping tools Spherical graphite cast iron utilized to prepare a lapping tool is manufactured by casting a molten composition into a mold cavity, and by chilling one side of the resulting casting thereby causing unidirectional solidification, the one side being used as... | 08/20/1991 |
| 5030299 | Low expansion cast iron lapping tool A lapping tool with a flatness in the range below 20 μm which is made of at least cast iron having an austenitic matrix and consisting essentially of from 1% up to 3.5% carbon, up to 1.5% silicon, from 32% to 39.5% nickel, from 1% to less than 4% cobalt,... | 07/09/1991 |
| 4930675 | Method of forming hard facings on materials A hard facing of preferably a high speed tool steel or a Stellite along the edge of a substrate is produced by mechanical deposition by means of rotary friction surfacing. The combination of high temperatures below the melting points of coating material a... | 06/05/1990 |
| 4781770 | Process for laser hardfacing drill bit cones having hard cutter inserts A cone blank for a rotary cone rock bit is forged, rough machined, carburized and heat-treated, followed by the formation of insert holes therein. Inserts are then pressed into the insert holes. The finished cone is subsequently sprayed with hardfacing cl... | 11/01/1988 |
| 4755237 | Methods for making cutting tools Improvements are provided in the structures of cutting tools and methods for producing such tools. The tool structures include providing a select portion or portions of a cutting tool, such as one or more portions adjacent a cutting or forming portion or ... | 07/05/1988 |
| 4753854 | Wear-resistant coating of cutting tool and method of applying same A wear-resistant coating of a cutting tool has at least a single layer of an interstitial phase which comprises alloying components and a non-metallic component the content of which falls within the boundaries of a region wherein a compound of this inters... | 06/28/1988 |
| 4453987 | Method for producing edged tools A method for producing an edged tool which has an excellent cutting ability and durability, which comprises immersing an edged-tool material in a molten-salt bath containing a carbide-forming element, such as a Va Group element, titanium, chromium or mang... | 06/12/1984 |
| 4303137 | Method for making a cone for a rock bit and product A method is provided for manufacturing tungsten carbide insert-type cutter cones for a rock bit for drilling oil wells and the like. A cone blank is formed from medium to high carbon steel by forging and machining. The cone blank has a generally conical e... | 12/01/1981 |
| 4108692 | Rock bit roller cutter and method therefor In a rock bit, roller cutter body having plural hard metal inserts; the body is formed of an age-hardenable superalloy having dimensional stability through hardening enabling pre-drilling of the insert-receiving holes prior to hardening the body, and meth... | 08/22/1978 |
| 4011108 | Cutting tools and a process for the manufacture of such tools The invention relates to a cutting tool containing 25-33 percent by weight of Co and certain amounts of W, Mo, C, B, Zr, Si, Mn, Cr, Ni and Fe containing normal contaminants, W + 2Mo being equal to 20-40 percent by weight, the structure of the tool consis... | 03/08/1977 |
