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| Number | Title | Issue Date |
| 5009554 | Machine tool A machine tool with a spindle for machining a large-diameter workpiece in that a servo motor for moving a spindle in the axial direction and a variable reluctance motor for rotating the spindle are installed in a housing, and a synchronous controller for ... | 04/23/1991 |
| 5002442 | Machine tool A machine tool comprises a spindle stock (11) in which a spindle (13) is seated for rotation about a spindle axis (14). The spindle (13) is provided with a receptacle (20) for the taper (21) of a toolholder (22). A first annular groove (31) is arranged in... | 03/26/1991 |
| 4997324 | Spindle structure for machine tool A spindle structure for a machine tool such as a boring machine, for example, includes a rotatable tubular shaft to be coupled to a rotative drive source, and a spindle axially slidably disposed in the tubular shaft and rotatable in unison with the tubula... | 03/05/1991 |
| 4975004 | Hot line attachment An apparatus for drilling into energized utility components without having to first de-energize them so as to allow continuous service to consumers is provided. The apparatus includes a drive shaft constructed of an insulating material terminating in a dr... | 12/04/1990 |
| 4954025 | Anchor set tool A tool adapted for use with a drill for installing screw anchors in concrete or masonry walls or the like having a sleeve type body, a bit holder slidably located in the body, a drill bit with a handle secured in the bit holder, a coil spring seated on a ... | 09/04/1990 |
| 4895482 | Countersink forming tooling Tooling to form a countersink and counterbore in a workpiece includes: (a) a first part defining an axis and that extends axially forwardly in a bore hole in the workpiece, (b) a rotatable carrier connected with that first part, (c) and a cutter blade on the carrie... | 01/23/1990 |
| 4879930 | Tool arrangement having angular position fixing means A rotationally symmetrical tool assembly includes a first component constituted by a tool holder; a second component constituted by a tool head and being removably attached to the first component such that engagement faces of the first and second componen... | 11/14/1989 |
| 4813829 | Tooling apparatus comprising a holder and tool head releasably mounted thereon A tooling assembly comprises a holder and a tool head releasably mounted thereon. The holder includes a forwardly projecting frusto-conical tongue which is tightly received within a correspondingly shaped socket of the tool holder. An actuator is slidably... | 03/21/1989 |
| 4792264 | Single bit reamer The cutter head of a reamer carries a circular tool bit and two guide members. Each guide member has an outer-most edge at the furthest distance from the center of rotation of the tool and slanted edges inclined at progressively greater angles from the ou... | 12/20/1988 |
| 4770575 | Centering and chucking system A centering and chucking system for fixing an interchangeable element to a carrier body. The carrier body is provided with guide elements whose guide surfaces are arranged along a coordinate system through the center of which extends the reference axis, e... | 09/13/1988 |
| 4642002 | Holder for motor driven tools A holder for supporting motor driven tools against the reaction torque which occurs during operation. Two supports which are spaced from one another are provided for the tool. The supports are rigidly connected with a clamping device. Since only one suppo... | 02/10/1987 |
| 4610578 | Hole machining device A hole machining device capable of effecting marking and similar operations as well as drilling and reaming. The device comprises driving shafts attached to the body of the machining device, spindles for installing the drills, springs for invariably urgin... | 09/09/1986 |
| 4594035 | Drilling stand A drilling stand has an axially extending guide column with a U- or C-shaped transverse cross-section forming an interior space in which a carriage is guided for movement in the axial direction. A drilling unit is mounted on the carriage and includes a dr... | 06/10/1986 |
| 4589805 | Boring and deburring head and boring and deburring tool capable of being fastened therein, and method for boring and deburring a workpiece The boring and milling head (11) is designed to receive a boring and mill tool (91) provided with a clamping device (55) having a hollow clamping cone (57) and a conical clamping wedge (61), the device being connected in order to resist torsion, to a dri... | 05/20/1986 |
| 4501519 | Threading die couple A tool couple which is used with a manually-operated threading die to aid in cutting the initial threads on a pipe or bolt. The device is used to force the anterior cutting edge of the die firmly against the outer, unthreaded surface of the workpiece at t... | 02/26/1985 |
| 4500235 | Coupling This invention relates to a coupling comprising female and male members (19, 18) having co-operating wedge surfaces (20,21), which may be urged into contact by tightening means (37). A spring (29) is adapted, upon tightening of the coupling, to accumulate... | 02/19/1985 |
| 4395171 | Chuck key A chuck key as a tubular body extending along an axis and having an axially forwardly directed end formed with an array of teeth centered on the axis. A crosspiece extends diametrically through the body at the end opposite its toothed end. A pin is displa... | 07/26/1983 |
| 4218068 | Deflectable holding assembly This invention relates to a holding assembly (10) for connecting a shaft (20) to a drive member (16), the holding assembly has a body (12), first and second end portions (14,18) and a middle portion (21), a member (52) is connected to the body (12) at the... | 08/19/1980 |
| 4200418 | Floating reamer The cutting head and shank of a floating reamer are connected for joint rotation about the shank axis and limited radial movement of the head on the shank by a reduced axial end portion of the shank being spacedly enveloped by an annular axial flange on t... | 04/29/1980 |
| 4176991 | Hinged tool holder A clamp for a tool spindle for rapid interchange of tools without the need to raise the spindle or lower the work further than the end of the tool to allow clearance. The clamp is provided with a recess co-axial with spindle and the tool is provided with ... | 12/04/1979 |
| 4122755 | Self-locking chuck A tool holding assembly wherein a self-locking chuck or tool holder is releasably secured in a rotary spindle by a draw bar and collet type tool holder gripping means. The self-locking chuck is provided with a spring-biased, ball locking means that functi... | 10/31/1978 |
| 4111442 | Floating tool holder A floating tool holder including a cylindrical shank having a recess in one end thereof, floating structure including in different modifications an outer race or a torque washer and a tool receiver positioned within the recess and held in radially spaced ... | 09/05/1978 |
| 4097178 | Diehead chaser carrier A holder for use with a screw cutting diehead of a machine tool, the holder having a recess for the reception of a thread chaser element, which recess has a surface arranged to locate the chaser element therein at a predetermined helix angle, and the hold... | 06/27/1978 |
| 4072084 | Graphite fiber reinforced structure for supporting machine tools Machine tools utilized in precision machine operations require tool support structures which exhibit minimal deflection, thermal expansion and vibration characteristics. The tool support structure of the present invention is a graphite fiber reinforced co... | 02/07/1978 |
| 4066377 | Tool element placement means The present invention is useful in establishing a plurality of tool elements in a desired configuration in relation to a workpiece surface. A typical device of the invention has a guide member having a flexible section containing tool element guide means,... | 01/03/1978 |
| 4054397 | Work tool stabilizing device A combination work tool and holder therefor, wherein the work tool is stabilized during work movement by the provision of an independently movable stabilizer bar mounted alongside and generally parallel to a tool holding bar, a rigid member clamping the b... | 10/18/1977 |
| 3999769 | Tool holder for machine tools A tool holder for machine tools particularly adapted for use in turret structures having a plurality of retainers for holding a plurality of such tool holders each carrying a different tool such as a drill, tap, reamer or other metal working tool. The dis... | 12/28/1976 |
| 3932904 | Combination tool The present invention concerns a combination tool for providing a bore in a workpiece and for introducing a fastener, especially a self-threading screw, into said bore. Said combination tool comprises a cylindrical core one end of which is provided with a... | 01/20/1976 |
