Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7287938 | Machine tool A machine tool has a rotatable tool holder formed with an outwardly open seat having an outwardly directed floor and a cartridge engaged in the seat, carrying a cutting insert, and formed with an inwardly open groove defining a groove axis and having a surface confr... | 10/30/2007 |
| 7260877 | Boring and turning mill A boring and turning mill, comprising a nonrotatable tool ram, a rotationally drivable tool spindle in the tool ram, an auxiliary head which can be attached to the tool ram in a nonrotatable manner, two work slides arranged in opposition to each other and displaceab... | 08/28/2007 |
| 7052217 | Multiple cutting edge rotary tool The invention relates to a multiple cutting edge rotary tool having a radial individual adjustment of each cutting edge or having a central adjustment for all cutting edges together. The multiple cutting edge rotary tool used for machining has a number of holders th... | 05/30/2006 |
| 7029210 | Cutting tool with indexable insert A circulating tool for cutting of workpieces including a carrier element that bears at least one cutter blade insert in an exactly positioned manner. A device is provided for adjusting the position of the insert relative to the carrier element and a clamping device ... | 04/18/2006 |
| 7014393 | Clamping and adjustment apparatus for a cutting tool A clamping and adjustment apparatus for a cutting tool is described in which a plate-shaped cutter insert is prestressable and fastenable by means of a tension screw with its bottom surface against a seat surface such that it is supported with lateral wall sections ... | 03/21/2006 |
| 6926475 | Tool for machining workpieces A tool for machining workpieces, having a parent body which can be expanded at least zonally, having at least one geometrically defined cutting edge projecting beyond a circumferential surface of the tool, and having a setting device influencing the radial distance ... | 08/09/2005 |
| 6497026 | System and method for the remanufacturing of a sealed module A system and method is provided for opening a sealed engine control module in which the module includes a substrate bent around and sealed to a central housing. In one aspect of the invention, the housing is machined around its perimeter, without damaging... | 12/24/2002 |
| 6312200 | Method and apparatus for adjusting a tool cartridge, such as a cutter body An apparatus for radially adjusting a position of at least one tool cartridge includes a machine tool having rotatable, concentric, elongate, inner and outer drive spindles with at least one pocket formed in the outer drive spindle exposing at least one c... | 11/06/2001 |
| 5971675 | Boring device A boring device for finishing high precision bores including a cylindrical body and a tool supporting member movable in a direction perpendicular to the longitudinal axis of the cylindrical body and adapted to retain a boring tool or implement. Movement o... | 10/26/1999 |
| 5957632 | Tool position correcting device A tool position correcting device comprises a draw bar supported for axial movement in a central bore of a spindle of a machine tool, a tool holder supported for turning about an eccentric axis displaced from the axis of rotation of the spindle on the nos... | 09/28/1999 |
| 5494383 | Reamer tip A reamer tip having a face and a V-shaped indentation formed in the face and having sides, which form with an imaginary plane extending parallel to the face an angle of about 9°-12°, preferably about 10°.... | 02/27/1996 |
| 5353668 | Toolholder for peeling operation The present invention provides a tool for bar peeling comprising a rotatable cutter head with circumferentially spaced toolholders each of which is provided with a U-shaped recess along one of its side surfaces. A wedge shaped element is longitudinally di... | 10/11/1994 |
| 5344260 | Main spindle apparatus of machine tool A tool holder is detachably secured to the lower end of a main spindle by means of a clamping nut having a female screw cooperating with a male screw of the main spindle such that keys are inserted into corresponding key recesses formed in an upper end fa... | 09/06/1994 |
| 5326198 | Micrometric device for finishing bores The invention relates to an improved micrometric device for finishing bores of the type having a substantially cylindrical body in the interior of which are mounted displacement devices that actuate on a tool holder displaceable in the same direction as t... | 07/05/1994 |
| 5316417 | Micrometric device for finishing high precision bores The invention relates to an improved micrometric device for finishing high precision bores. The device has a substantially cylindrical body having a displacement system arranged in an interior thereof. The displacement device actuates on a tool holder whi... | 05/31/1994 |
| 5222846 | Ultra-precision sub-micron boring tool and pre-setting system An ultra-precision sub-micron boring tool and pre-setting system for finishing through bores or blind bores is disclosed. The system includes a cylindrical cartridge having an internal hollow portion, a first through bore located in the hollow portion, an... | 06/29/1993 |
| 4880339 | Drill bar with a cutter insert In a drill bar having a transverse slot, in which a cutter assembly having two diametrically oppositely positioned cutters is inserted, the cutter assembly has a housing from which the outer cutting edges of the cutters are outwardly extended. Each cutter... | 11/14/1989 |
| 4847975 | Boring tool for machine tool A boring tool is made from simple bar stock without significant external machining of the tool body. By providing a longitudinal bore which intersects a transverse slot, a longitudinally slidable wedge with splines can cooperate with a disc carried by a t... | 07/18/1989 |
| 4793750 | Precision adjustment for a machine tool, especially a boring machine or the like In a precision adjustment head for a machine tool a slide (9) is radially adjustable in a radially extending guide (8) in a substantially cylindrical housing (1), on which slide a tool carrier (11) can be fixed. In the housing (1) the positioning member 5... | 12/27/1988 |
| 4793748 | Boring tool for machine tool A boring tool is made from simple bar stock without significant external machining of the tool body. By providing a longitudinal bore which intersects a transverse slot, a longitudinally slidable wedge with splines can cooperate with a disc carried by a t... | 12/27/1988 |
| 4786217 | Metal-cutting tool A tool for metal-cutting comprises a holder (3) on which is mounted in its front part (3a) a cutting plate (6) and which is formed together with a base body (2) as an integral unit by being connected rigidly to the base body (2) in the region of its rear ... | 11/22/1988 |
| 4773799 | Apparatus for sampling a section of tube in a nuclear fuel assembly For sampling a section of a tube in a nuclear fuel assembly comprising a skeleton formed by two end-pieces joined by tubes fixed to the end-pieces an opening for the extraction of the section through the upper end-piece is cut out with a milling cutter. T... | 09/27/1988 |
| 4742738 | Machine adjustable boring bar assembly and method A machine adjustable boring bar assembly is disclosed for use with a rotatable spindle of a machine tool which accepts interchangeable tools. This assembly includes an elongated boring bar body interchangeably mounted in a rotatable machine tool spindle a... | 05/10/1988 |
| 4692069 | Cutter head The invention relates to a cutter head having a substantially cylindrical main body and a plurality of replaceably cutting elements disposed at the periphery of said main body and having at least one cutting edge in the axial and/or radial direction of sa... | 09/08/1987 |
| 4648757 | Precision adjustment system for boring tools A system is disclosed for automatic radial adjustment of a boring tool in a machine tool spindle to accurately size a bore in a workpiece within extremely close tolerances over a wide range of bore sizes. The system includes a boring tool mounting a toolh... | 03/10/1987 |
| 4631994 | Adjustable holder for a cutting tool A linearly and angularly adjustable holder for a cutting tool having primary and secondary cutting edges includes a basic element, a receptacle element for the cutting tool rotatably mounted on the basic element, and a setting element slidably mounted on ... | 12/30/1986 |
| 4621548 | Machine tool holder unit An interchangeable machine tool holder unit for use in a machining apparatus for the support of a machining element, for example, a cutting bit, which includes an elongated rotary body adapted to be driven in one direction about the longitudinal axis ther... | 11/11/1986 |
| 4615652 | Cutting tool compensator for rotary machine tool A machine tool of the type having a rotatably mounted housing circumscribing a longitudinal axis of rotation and adapted for having coupled thereto a tool holder having at least one cutting tool which is adjustable radially of the axis such that a cutting... | 10/07/1986 |
| 4615243 | Pipe reaming device A device for removing pipe attached to a fitting includes cutting apparatus for removing the pipe disposed within the fitting. A wrench apparatus is connected to the cutting apparatus for gripping the fitting to prevent its movement when the cutting appar... | 10/07/1986 |
| 4611516 | Metal working cutting tool Metal working cutting tool with a cutting insert which can be inserted in a recess of a tool shaft and fastened therein by means of a clamping jaw, whereby the cutting insert has the approximate shape of a prism with two diagonal opposite cutting edges an... | 09/16/1986 |
| 4514116 | Drive mechanism for radial adjustment of a drilling tool The output shaft of a rotary drive motor is connected to a screw shaft which is disposed on the same axis as the output shaft. The screw shaft is rotatably mounted in an axial bearing in a housing, and engages an internal screw element (nut) fixed to a th... | 04/30/1985 |
| 4447177 | Tool holder with tool position compensating mechanism A tool holder incorporating a tool position compensating mechanism is disclosed, which includes a screw shaft axially slidably but non-rotatably supported in a tool mounting shell and formed with a cam surface. A rotary member is rotatably received and th... | 05/08/1984 |
| 4416569 | Tool position compensating mechanism A tool holder incorporating a tool position compensating mechanism which comprises a screw shaft rotatably supported in a tool mounting shell in axial alignment therewith and engageable with a stationary member on a machine tool for relative rotation with... | 11/22/1983 |
| 4406194 | Tool holder The tool holder of the present invention provides a pivoted tool support mounted to a base and including a cam extending between the base and the pivoted holder for longitudinal movement. A drive follower extends between the cam and base to convert the lo... | 09/27/1983 |
| 4162867 | Dual cutter boring head In the machine tool art, a dual cutter boring head which comprises a cylindrical body having side-by-side, tool-holding slides mounted diametrally thereon; the slides at their outer ends being fitted with cutters disposed exteriorly of the periphery of th... | 07/31/1979 |
| 4050840 | Radially adjustable rotary cutting tool A radially adjustable rotary cutting tool such as a rotary reamer or the like. The tool head has a generally cylindrical body with a shank at one end and a radially slotted cutting head at the other end. The cutting head has a central axially extending th... | 09/27/1977 |
