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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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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 |
| 7270503 | Cutting tool for rotating and drilling into solid blocks The invention relates to a cutting tool for rotating and drilling into solid blocks, comprising a drill shank (1) and a cutting head (2) on one end. The cutting head (2) has a straight, front-face cutting edge (4) extending approximately ... | 09/18/2007 |
| 7234902 | Milling tool holder with camming plug A milling tool holder apparatus includes a tool holder having a male structure received in a female opening of a shank, and a camming plug received in a transverse plug-receiving opening in the shank and the tool holder. Turning the camming plug in one direction mov... | 06/26/2007 |
| 7201545 | Tool, a cutting insert, a shim and use of the cutting insert The present invention relates to a tool, a cutting insert and a shim for cutting machining. The tool includes a holder for turning or milling, a shim and an indexable cutting insert. The shim has an upper side and the cutting insert has a lower side. The lower side ... | 04/10/2007 |
| 7192224 | Drilling tool A double or multiple-edged drilling tool has a base body rotatable about a drilling axis, and at least two plate seats arranged on the front face for accommodating identical interchangeable cutting plates. The cutting plates each have a machining face, and a clearan... | 03/20/2007 |
| 7156588 | Cutting head for rotary cutting tool A cutting head for a rotating cutting tool for metal cutting operations. The cutting head has an axially adjustable cartridge which is an integral single piece. A slit divides the cartridge into a clamping portion and a main body portion, the clamping portion being ... | 01/02/2007 |
| 7140616 | Sealing device The invention relates to a sealing device which is provided with an annular circumferential groove in a preceding sealing washer and having a sealing body disposed in the groove. The width and depth of the groove are larger than the cross-section of the sealing body... | 11/28/2006 |
| 7121769 | Rotary slot milling cutter and cutting insert therefor A rotary slot milling cutter has a plurality of cutting portions, each cutting portion having an insert pocket and a cutting insert removably mounted therein. The cutting insert includes a top face and a bottom face which has two spaced-apart abutments, with a ceili... | 10/17/2006 |
| 7037050 | Milling head with one to three-dimensional adjustable cutting insert and with a positive fitting cutting insert A milling head is provided having a basic body and cutting inserts which can be adjusted in the basic body in recesses and are clamped down by a clamping element which is disposed in the recesses. ... | 05/02/2006 |
| 7031802 | Semi-autonomous operation of a robotic device A method for semi-autonomous operation of a robotic device in a room. In the method, one or more goal points are set and the distances between the robotic device and the one or more goal points are determined. A first one of the one or more goal points is selected a... | 04/18/2006 |
| 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 |
| 6921234 | Tool and toolholder for chip forming machining An indexible cutting insert has a connecting surface formed by alternating parallel ridges and grooves. Each ridge is defined by a pair of flanks which converge in an outward direction. Each ridge includes a convexly curved surface portion for making line contact wi... | 07/26/2005 |
| 6913427 | Adjustment device for self-colleting drill motors An adjustment device comprises a first portion and a second portion. The first and second portions are adjustably engaging one another. The adjustment device has an overall length that is adapted to be adjusted by adjusting the first and second portions relative to ... | 07/05/2005 |
| 6843621 | Reamer A tapered reamer is disclosed. The reamer is used to make a tapered opening in a cylinder used in a crossing gate repair kit. A straight reamer is also disclosed. ... | 01/18/2005 |
| 6533506 | Adjustable hollow milling tool having constant radial rake angle, constant axial rake angle, and constant radial and axial clearance angles at all cutting diameters A hollow milling tool which is adjustable through a wide range of cutting diameters while maintaining a constant radial rake angle, constant axial rake angle, constant axial clearance angle, and a constant radial clearance angle. The tool includes at leas... | 03/18/2003 |
| 6254319 | Friction and vertical cutting tool The invention relates to a friction and sinking cutting tool comprising a base member (2) to which a cutting blade (20) is exchangeably clampingly fixed by means of a clamping screw and which is adjustable in terms of its radial position by an adjusting m... | 07/03/2001 |
| 6183174 | Boring head On a tool body at least one bit carrier is mounted capable of sliding. Clamping means are provided for clamping the bit carrier against a clamp plate of the tool body. A catch plate of the tool body operates with a corresponding catch plate of the bit car... | 02/06/2001 |
| 5961259 | Rotatable type machine tool A rotatable machine tool such as a precision boring tool has a head (2) that is detachably mounted on a shank type driving element (3). The head carries a removable cutting tip (9) and includes a bearing point (8) that wedgingly seats within a transverse ... | 10/05/1999 |
| 5906458 | Reamer with clamping arrangement for adjustable cutting insert An adjustable reamer includes a securing portion, a shank, a guide members, at least one cutting insert, an adjustment device for adjusting the insert, and a clamp for clamping the insert. The clamp is releasable from the shank. A first place of contact i... | 05/25/1999 |
| 5810518 | Fastening arrangement for cutting inserts and a cutting insert intended for such an arrangement A metal cutting insert is directly mounted on a support surface formed either by an insert holder, or by a shim interposed between the insert and insert holder. The insert includes a bottom surface having grooves and planar surface portions disposed betwe... | 09/22/1998 |
| 5769577 | Removable spinning tool assembly An improvement to the art of interchangeable spinning machine tool holders has a horizontal disengagement mechanism. A dove tail assembly is used on a spinning receiver and a drilling tool holder combination. In operation a drill press can remain in posit... | 06/23/1998 |
| 5330297 | Boring tool A boring tool comprises a body having, at a free end thereof, two insert holders which are radially adjustable by displacement relative to a groove defined by two opposing boundary surfaces and accommodating two elongate guide lugs on the insert holders. ... | 07/19/1994 |
| 5024566 | All in one drill bit A selective drill bit attachment for a standard portable electric drill is provided and includes a housing for carrying a plurality of different sized drill bits in which one of the drill bits can be selected and manually extended into an operable positio... | 06/18/1991 |
| 4954024 | Precision boring tool A precision boring tool for the machining of inner faces of bores with at least one cutting plate, supported by a bracing claw, is disclosed. The cutting plate (2) is tilted versus the plane running through the cutting edge (11) of the cutting plate (2) a... | 09/04/1990 |
| 4850757 | Rotary cutting tool A rotary cutting tool including an elongated generally cylindrical holder having a recess into which is fitted a disposable cutting insert. The insert is held in place by a clamping member which bears against a surface of the insert and which is attached ... | 07/25/1989 |
| 4820091 | Tool and method for forming panel joints A rotary cutting tool and method for use of the cutting tool for forming complementary wavy joint surfaces in the edges of panels to be mounted in adjacent relationship to each other such as panels of sheet material used for counters, sink tops, stove top... | 04/11/1989 |
| 4770571 | Drill A drill comprises a holder (1) and a cutting member in the form of a pair of discs (2,3). Each disc (2,3) has at least five facets (11,12) arranged along its periphery and symmetrically with respect to its center line (13, 14), the discs (2, 3) being moun... | 09/13/1988 |
| 4710073 | Tool apparatus for boring a hole The present invention is directed to a boring head tool apparatus. A new method of making the tool as well as structure which allows use of the indicated method and leads to several advantages combine to overcome problems of the art to increase boring acc... | 12/01/1987 |
| 4662254 | Quick change tool block clamp Quick change cutting tool block clamp wherein planar mounting faces of adapter base and tool holder faces are located and retained in compressive engagement through linear interengagement of transverse semi-dovetail key surfaces under pressure established... | 05/05/1987 |
| 4632609 | Rotary cutting tool To achieve reliable fastening of a toothed cutter carrier on the toothed bearing surface of a tool body, and to achieve favorable force ratios, in a rotary cutting tool, in particular a drilling head, the tooth formation of the bearing surface is construc... | 12/30/1986 |
| 4621958 | Metal boring tool A boring block and tool holder is disclosed having an opening therein. The block is made of a thick rectangular plate having inserts set into its front corners and inclined surfaces adjacent its rear edge forming a noncircular tang part having two rearwar... | 11/11/1986 |
| 4595320 | Boring tool with a double cutter head, in which the working load is prevented outside the elastic range of the cutting bit holder material in the vicinity of the outermost radial positioning The head of this boring tool carries two bit holders, which can be radially adjusted to different cutting widths by tooth systems provided on sloping faces of the head and/or bit holder. To ensure that there is still reciprocal supporting of the bit holde... | 06/17/1986 |
| 4566828 | Ball track milling cutter tool A cutting tool is disclosed, particularly a ball track milling cutter, comprising a tool holder in which a turnover cutting disc is received that includes four cutting edges of circular arc segment shape. The cutting disc is received in a slot dividing th... | 01/28/1986 |
| 4551044 | Radially adjustable tool head of a cutting machine In the radially adjustable tool head there is provided a radially adjustable slide serving to accommodate a cutting tool. The slide is arranged to slide on a spindle insert at guiding members containing guiding or guide surfaces which slide in pairs upon ... | 11/05/1985 |
| 4547103 | Boring tool The boring tool has an insert upon which one or two boring heads are slidably guided along a swallowtail track. For fixing the boring heads in position, set screws are provided which are adapted to bear against the clamping surfaces of the insert. To prec... | 10/15/1985 |
| 4545711 | Tool using replaceable bits A milling tool for cutting internally of a bore by means of replaceable bits. The tool comprises an elongate bar member an end portion of which includes a pair of axially outer portions which extend radially outwardly from a central portion and are dispos... | 10/08/1985 |
| 4533285 | Cutting attachment for boring tool An attachment for use with a tool having a cutting surface on one end of a bar consists of a collar that has an opening corresponding substantially to the cross-sectional configuration of the bar and is frictionally supported thereon in any angular or axi... | 08/06/1985 |
| 4507027 | Adjustable boring head tool holder An adjustable boring head tool holder including a boring bar and a bar holder where securement of the boring bar to the bar holder is accomplished with a slot and key combination and a cam clamp. To add rigidity to the tool holder, a hold down clamp may b... | 03/26/1985 |
| 4486131 | Turning tool for machining the ends of shafts, journals, tubes and the like The turning tool has a disc-shaped base element 1 connectable to the spindle of a lathe and four toolholders 6, 7, each with one or more cutting plate supports 12, adjustable radially relative to the rotary axis (D-D), clampable with an adjusting screw 25... | 12/04/1984 |
| 4437802 | Boring tool having a detachable cutting blade A boring tool having a detachable cutting blade, and, more particularly a gun drill for boring holes to extremely exacting tolerances.... | 03/20/1984 |
