Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8157486 | Cutting tool and cutting insert therefor A cutting tool has a cutting insert retained within an insert pocket of an insert holder by a retaining screw. Spaced apart first insert rear abutment surfaces abut spaced apart first pocket rear abutment surfaces, a second insert rear abutment surface abuts a secon... | 04/17/2012 |
| 8021084 | Cutting tool and cutting insert therefor A cutting tool has a cutting insert retained within an insert pocket of an insert holder by a retaining screw. Spaced apart first insert rear abutment surfaces abut spaced apart first pocket rear abutment surfaces, a second insert rear abutment surface abuts a secon... | 09/20/2011 |
| 7313991 | Cutting insert and use thereof A cutting insert made of cemented carbide and the use thereof for recessing or copy-turning, preferably at a high rotating speed. The cutting insert has at least one recess for insertion therein of a cutting body of a material other than cemented carbide, such as a ... | 01/01/2008 |
| 7255518 | Insert seat formed of ridges A tool body includes an insert seat for receiving a cutting insert for chip-removing machining. The insert seat includes a bottom surface and support surfaces upstanding from the bottom surface. Each support surface comprises at least three ridges separated by groov... | 08/14/2007 |
| 7179021 | Cutting insert holder A cutting insert holder for releasably clamping a quadrilateral cutting insert in a predetermined clamping position, the cutting insert having a through bore and a non-obtuse insert mounting corner. The cutting insert holder includes a clamping portion formed with a... | 02/20/2007 |
| 7128501 | Lathe tool assembly A lathe tool assembly includes a pair of set screws that reduce vibration of a work piece that is being machined. A clamp set screw passes through a clamping assembly to a chip breaker that covers a cutting bit. The end of the clamp set screw bears against the chip ... | 10/31/2006 |
| 7101121 | Milling cutter with precision adjustment A cutter insert for disc-milling cutters, in particular, for milling crankshafts. The insert has upper and lower surfaces and circumferential lateral surfaces, which connect the upper and lower surfaces to one another. The insert includes raised swellings and/or pro... | 09/05/2006 |
| 6969218 | Profile turning tool The profile turning tool is used for rough-turning and dressing circumferential and flat surfaces, in particular of workpieces made of light metals. It consists of a holder (10) with a receiver (16) for a diamond cutting head (18) as well as a c... | 11/29/2005 |
| 6471448 | Cutting tool having liquid-spraying nozzles for controlling chip formation A metal workpiece is cut by rotating the workpiece while pressing the cutting edge of a cutting insert thereagainst for removing a chip from the workpiece. A first liquid jet is directed from a first nozzle toward an upper surface of the cutting insert fo... | 10/29/2002 |
| 6443672 | Cutting tool with nozzle A cutting tool includes a nozzle for directing coolant toward an insert seat disposed in the tool. The nozzle includes a bore which directs coolant toward a location on the seat that is spaced from a center hole in which the nozzle is mounted. A rear end ... | 09/03/2002 |
| 6394709 | Tool holder having a clamp plate for transmitting clamping forces from a clamping arm to a cutting insert A cutting insert is clamped in a pocket of a holder by a top clamp assembly which includes a clamp arm screwed to the holder, and a clamp plate interposed between the insert and a front part of the clamp arm. The clamp plate is formed of a harder and more... | 05/28/2002 |
| 6302004 | Method and apparatus for increasing the productivity of CNC machine tools A CNC machine tool has a turret (10), a reservoir of coolant, a pump supplying coolant under pressure from the reservoir (not shown) to the turret (10), a tool holder (13) mounted on the turret at a tool station (8) opposite a rotatable spindle (not shown... | 10/16/2001 |
| 6053669 | Chip forming cutting insert with internal cooling A cutting insert is cooled during chip removing machining of a workpiece by conducting cooling medium through a porous supporting body of the insert. The cooling medium enters the insert through an inlet formed therein at a location remote from a cutting ... | 04/25/2000 |
| 5947648 | Toolholder assembly A toolholder assembly includes a holder blade having an upper clamping jaw and a lower base jaw defining therebetween an insert receiving slot for releasably retaining a cutting insert therein. The upper clamping jaw has an upper surface disposed apart fr... | 09/07/1999 |
| 5904452 | Chip removing precision finishing tool A chip removal tool for finishing the radial surface of a bore and having a cylindrical bit for mounting a cutting element and a deflector positioned adjacent the cutting element to deflect chips cut from the bore and urging the chips into a flow of fluid... | 05/18/1999 |
| 5829331 | Tool holder and cutting process using the tool holder A tool holder composed of: a holder body, the holder body including: a tip mounting portion; a cutting tip held to the holder body at the tip mounting portion; a face adjoining the cutting tip; and a protrusion projecting from the face to thereby rebound ... | 11/03/1998 |
| 5352067 | Milling cutter clamping wedge with hardened chip surface A cutting tool is disclosed which includes a tool body having a mounting portion to be secured to a machine tool and having a plurality of insert receiving recesses formed therein. A plurality of cutting inserts are releasably attached to the insert recei... | 10/04/1994 |
| 5222841 | Form tool system A system is provided for a set of form tools which utilize a common shank to be able to machine a number of different shapes. A pad is provided which sits between the cutting tool and the shank where the pad is of such a shape and dimension as to provide ... | 06/29/1993 |
| 5146963 | Chipping device A chipping cutter head having multiple spindle segments disposed side-by-side and forming a body in the cutter head. Circumferentially distributed pockets in each spindle segment have knife holders detachably mounted therein and held in place by clamps. D... | 09/15/1992 |
| 5080535 | Drill chips removing device A drill chips removing device, comprising a sleeve or a ring formed with a through hole at its central portion for axially passing said drill therethrough and provided with a fixing device for fixing the sleeve or the ring to the drill.... | 01/14/1992 |
| 4414870 | Cutting tool The specification discloses a cutting tool (10) having a cutting insert (18) mounted thereon. A clamp (20) is secured to a tool body (12) by a screw (24) and spring (62) interconnection, and a clamp tip (22) extends from the clamp (20) towards the insert ... | 11/15/1983 |
| 4400116 | Cutting tool with adjustable chip breaker A cutting tool which includes a mounting shaft and a chip breaker positioned on the mounting shaft. A cutting plate is supported between the mounting shaft and the chip breaker, with a clamping jaw being positioned on the chip breaker. A clamping screw is... | 08/23/1983 |
| 4277206 | Adjustable chip breaker for a cutting tool This invention is directed to an adjustable chip breaker associated with a cutting tool having a cutting bit. The position of the chip breaker can be adjusted with respect to the cutting tool.... | 07/07/1981 |
| 4252038 | Modified tool holder to prevent insert slippage and fracture A cutting tool holding system is disclosed. The system employs an improved chip breaker element having a lip mechanically gripping a radially extending and exposed edge of the cutting tool insert; the breaker element is held against relative sliding movem... | 02/24/1981 |
| 4201500 | Profile milling cutter for a circular milling of cylindrical portions of crankshafts A disc-shaped cutter body (1; 101; 201) is provided with a multiplicity of tooth plates (4; 104; 204, 204a), which engage suitable backing and end-supporting surfaces (5, 6, 7; 105, 106, 107, 205, 205a, 206, 206a, 207, 207a) of tooth holders (3; 103; 203)... | 05/06/1980 |
| 4077735 | Cutting tool and insert assembly In cutting tools employing disposable inserts an indexing shoulder is generally provided on the body of the tool. When exposed to excessive force the shoulder may be damaged and the tool difficult to repair. This invention proposes a replaceable seat whic... | 03/07/1978 |
| 3989077 | Rotary cutter A cutter for removing chips from wood has a rotary carrier whose peripheral surface is formed with rearwardly and inwardly inclined recesses for permanent magnets which attract plate-like blades having cutting edges which extend radially outwardly beyond ... | 11/02/1976 |
