Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7360972 | Indexable cutting inserts and methods for producing the same A method of making a cutting insert includes: (i) forming a blank having a substrate and superhard material, the substrate having more than 4 pockets, the superhard material disposed within the pockets; (ii) removing cutting tips from the blank by cutting the blank ... | 04/22/2008 |
| 7338235 | Internal broach An internal broach for internally broaching profiles, defined by a bottom and flanks, of female serrations of a work piece having a toothed section with several rows of broach cutting teeth, the rows being disposed successively counter to a direction of broaching, w... | 03/04/2008 |
| 7266873 | Throw-away burnishing tool for outside diameter and for inside diameter A throw-away burnishing tool for an outside diameter includes: a tool holder having a rectilinear I-shaped portion and a protrusion portion; a hard material tip detachably attached to a tip holder; a holder pin connected to the tip holder and accommodated in the pro... | 09/11/2007 |
| 7127979 | Saw blade for hand-held tools A saw blade for power tools, in particular for power reciprocating saws, includes a blade back (11) and a toothing (12) extending along the lower edge of the blade back and having many saw teeth (13) lined up in succession, In order to increase ... | 10/31/2006 |
| 6676340 | Tool and method for machining workpieces A tool for machining workpieces, having at least one cutting edge which is fastened to a main body of the tool. A respective deburring device removes the burrs produced by each cutting edge during machining. The deburring device is supported at the main b... | 01/13/2004 |
| 6560835 | Skiving and roller burnishing tool Apparatus is disclosed for finishing the inside of hollow work-pieces such as long hydraulic or pneumatic cylinders. A rotatable skiving and roller burnishing tool is advanced into one end of the work-piece and advanced through the cylindrical interior of... | 05/13/2003 |
| 6508150 | REVERSIBLE CUTTING TIP, METHOD FOR PRODUCING SUCH CUTTING TIP, TOOL PROVIDED WITH SUCH CUTTING TIPS, AND METHOD FOR CUTTING A WORKPIECE BY USING SUCH CUTTING TIP OR A TOOL PROVIDED WITH SUCH CUTTING TIP A reversible cutting tip for a cutting tool has a cutting wedge defined by a first face and a first flank. The cutting wedge has a clearance angle of 0° to 3°. The first flank is produced by applying a first coating to the cutting tip and the first face... | 01/21/2003 |
| 6367137 | Skiving and roller burnishing tool Apparatus is disclosed for finishing the inside of hollow work-pieces such as long hydraulic or pneumatic cylinders. A rotatable skiving and roller burnishing tool is advanced into one end of the work-piece and advanced through the cylindrical interior of... | 04/09/2002 |
| 6099209 | Cutting tool and method for producing and cutting a non-porous surface layer A cutting tool has a compressing segment for imparting a compressive force to produce a non-porous surface layer on a workpiece of porous material. The cutting tool also has a cutting segment to machine the non-porous surface layer for a desired surface f... | 08/08/2000 |
| 5859405 | Cutting tool precision turning method and apparatus for a heat-treatable steel workpiece A method and a device for the precision turning of a workpiece made of a heat-treatable steel permits a dry hard precision turning of hardened workpiece surfaces without tempering. In order also to allow precision turning and hardening of unhardened workp... | 01/12/1999 |
| 5667428 | Apparatus for cutting and grinding a workpiece A machine for simultaneously milling and grinding a workpiece comprises milling and grinding wheels rotatable about respective first and second parallel axes, the second axis being offset radially with respect to the first axis. A single motor drives the ... | 09/16/1997 |
| 5056963 | Tip for a cutting tool A tip for a cutting tool which can apply a heavy residual stress in compression to a material to be cut. This tip has four cutting portions. Each of the cutting portions has first and second rake surfaces having first and second angles of negative values,... | 10/15/1991 |
| 5018257 | Magnetic sheet polishing device A magnetic sheet polishing device including a scraper having a sliding surface and a downstream side surface that is nearly perpendicular or at an acute angle to the sliding surface to ensure that magnetic material powder spontaneously falls away from and... | 05/28/1991 |
| 5017060 | Rotary cutting tool There is disclosed a rotary cutting tool having a cutter body and at least one pair of end and peripheral cutting edges provided on the cutter body. A covering of a generally cylindrical shape is disposed rotatably relative to the cutter body so as to sur... | 05/21/1991 |
| 5000630 | Bit for forming holes in composite materials A bit (12) has a triangular drill portion (14), a frustoconical grinder portion (24), and a cylindrical reamer portion (28). The drill portion (14) has three longitudinal cutting edges (16) that define the angles of its triangular cross section. The grind... | 03/19/1991 |
| 4976020 | Magnetic sheet polishing device A magnetic sheet polishing device including a scraper having a sliding surface and a downstream side surface that is nearly perpendicular or at an acute angle to the sliding surface to ensure that magnetic material powder spontaneously falls away from and... | 12/11/1990 |
| 4966504 | Electrode tip dresser and holder assembly An electrode tip dresser which is comprised of a pair of interlocking cutter blades. A rotatable holder is provided for assisting in securing the blades to each other. A clamping mechanism is provided to releasably secure both the blades and the rotatable... | 10/30/1990 |
| 4794836 | Honeycomb core cutting tool The invention is a honeycomb core cutting tool wherein a primary cutter is used to cut the core to shape and secondary cutters are used to immediately shred that portion of the core being removed. The primary cutter is typically a commercially available c... | 01/03/1989 |
| 4754671 | Combination cut-off tool/bar puller A combination tool mounted at a work station on the turret of a CNC lathe includes a cut-off tool having a tool holder body supporting a carbide cutter insert at its forward end. A bar puller mounted on the tool holder body has a pair of vertically spaced... | 07/05/1988 |
| 4720218 | Combination drilling and dressing bit The bit (1, 101, 201) includes a pointed tapered drill portion (10, 110, 210) with cutting edges (14, 114, 214), an abrasive frustoconical grinder portion (20, 120, 220), and an abrasive cylindrical reamer portion (30, 130, 230). The drill portion (10, 11... | 01/19/1988 |
| 4675975 | Combination planing and finishing tool This combination tool (10) includes a body (12) attachable to a drill press (16) by means of a shaft (14). The body includes an end face (34) for attachment of an abrasive finishing disc (36) and provides a mounting for cutter inserts (40). Each cutter in... | 06/30/1987 |
| 4620821 | Cutting device for cutting honeycomb light constructions A cutting device for cutting thin-walled honeycomb profiles of metal or plastics for airplane technology includes a cutter which has sharply ground saw-shaped teeth at its periphery; the steep flanks of individual teeth extend opposite to the direction of... | 11/04/1986 |
| 4574442 | Single pass boring, skiving and roller burnishing tool A boring, skiving, and roller burnishing tool includes means for boring, skiving, and burnishing a cylindrical hole in a workpiece. The boring means comprises a plurality of cutting blades oriented at a particular angle to remove a relatively large amount... | 03/11/1986 |
| 4527929 | Roller-guided cutting tool A skiving and roller burnishing tool for finishing the internal surface of a cylindrical bore includes a cutting assembly and a pair of roller burnishing assemblies. Each roller assembly includes a plurality of frustoconical rollers mounted on a frustocon... | 07/09/1985 |
| 4509885 | Skiving and roller burnishing tool A skiving and roller burnishing tool includes a plurality of frustoconically tapered rollers and a retractable knife for use in combination for finishing the internal surface of a cylindrical hole. The roller burnishing tool includes a roller race having ... | 04/09/1985 |
| 4471521 | Rotary head for machining and simultaneously polishing the peripheral surface of shafts or the like A head rotatable about an axis for machining and simultaneously polishing the peripheral surfaces of shafts or the like, comprises a support plate provided with a central opening through which a shaft to be machined and polishing may extend. A plurality o... | 09/18/1984 |
| 4425693 | Retractable knife for skiving tool A skiving tool having a retractable knife for use in combination with a roller burnishing tool for finishing the internal surface of a cylindrical hole. The retractable knife includes a pair of radially extendible knife holders defining a camming path hav... | 01/17/1984 |
| 4367576 | Skiving and roller burnishing tool A skiving and roller burnishing tool for cutting and burnishing the interior of a cylinder or other workpiece is disclosed. The cutter assembly is mounted on a drive shaft which drives the cutter assembly through the interior of the cylinder to cut the in... | 01/11/1983 |
| 4290718 | Tools for bevelling and deburring gears A tool for bevelling and deburring gears comprising a deburring tool having profiled teeth which are straight with a taper decreasing from the periphery towards the center and a pair of deburring discs operatively connected to the toothed member.... | 09/22/1981 |
| 4091525 | Reamer for fine reaming of ports A reamer for fine reaming of ports containing a working portion with cutting blades in which, and a rear guiding portion in which at least three smoothing inserts are fitted the smoothing inserts, being inclined at a common auxiliary negative relief angle... | 05/30/1978 |
| 4054976 | Combined precision boring and burnishing tool A combined tool for precision boring and burnishing a tubular workpiece includes a bore head and a burnishing head which are advanced by a feed tube into the interior of the tubular workpiece while the latter is rotated about its axis. In order to reduce ... | 10/25/1977 |
| 3980442 | Process for using a combination tool A method of using combination tool is disclosed in which a roller burnishing tool and a cutting tool are both mounted on a common shaft means and in which the roller burnishing tool has its mandrel arranged so that its largest diameter portion is located ... | 09/14/1976 |
| 3973319 | Combined skin or rough turning and smoothing roller tool A combined skin or rough turning and smoothing roller tool comprising a body having a diametrical slit for a rough turning tool and an axially adjustable basket mounting smoothing rollers axially spaced from the slit. A frustoconically surfaced ring is di... | 08/10/1976 |
| 3961404 | Method for machining a groove in a metal surface A method of forming a groove in an essentially planar face of a metal object, the groove being uniformly curved on an arc of radius "r", and being of a width "w" and a constant depth "d". Such grooves must be formed, for example, to receive the end face s... | 06/08/1976 |
