| Patents for B23B 29 - Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders (6,603) |
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| 10/08/1991 | US5054176 Machine tool and chucking attachment and tool head therefor |
| 10/03/1991 | WO1991014528A1 Toolholder assembly with angular adjustment mechanism |
| 10/03/1991 | WO1991014527A1 Machining unit with rotary head carrying pivoting tools |
| 10/02/1991 | CN2085692U Combined cutter arbor for cutting ultra long and thin shaft |
| 09/26/1991 | DE4101881A1 Rotary tool for cutting grooves in roller cage |
| 09/25/1991 | EP0334900B1 Undercutting drill |
| 09/22/1991 | CA2038591A1 Toolholder assembly with angular adjustment mechanism |
| 09/19/1991 | WO1991013715A1 Device for clamping a radially mobile pin or spindle in a support |
| 09/04/1991 | CN1013746B Cutting insert and tool holder therefor |
| 09/03/1991 | CA1288231C Clamping apparatus for holding a toolholder shank |
| 09/03/1991 | CA1288230C Toolholder assembly |
| 09/03/1991 | CA1288229C Toolholder |
| 09/03/1991 | CA1288228C Apparatus for holding a toolholder shank |
| 09/03/1991 | CA1288227C Toolholder and method of releasably mounting |
| 09/03/1991 | CA1288226C Lock rod and apparatus for holding a toolholder |
| 08/28/1991 | CN2083521U Boring tool adjusting rule |
| 08/20/1991 | US5040932 Locator mechanism for a tool holder assembly |
| 08/14/1991 | CN2082649U Rapid fine adjustment boring cutter frame |
| 08/08/1991 | WO1991011281A1 Quick change clamping mechanism |
| 07/23/1991 | US5033918 Device for fine adjustment of the turning tool bit of a rotating radial adjustment head |
| 07/23/1991 | US5033916 High-speed milling or drilling heads |
| 07/23/1991 | US5033340 Apparatus and method for tool vibration damping |
| 07/18/1991 | DE3744823C2 Boring tool with eccentric cutter |
| 07/17/1991 | EP0437391A1 Perfectioned milling unit, especially for the milling of teeth |
| 07/17/1991 | CA2007924A1 Annular boring tool |
| 07/16/1991 | US5031492 Basic tool holder for attachment in an accommodating recess, particularly a turret head |
| 07/11/1991 | DE4015509C1 Tool holder for machine tool - has base with rotating inertia weight to drive it |
| 07/10/1991 | CN2080434U Fastening clamp for cutter knife |
| 07/09/1991 | US5030042 Machining apparatus having means for changing radial position of cutting tools |
| 07/09/1991 | US5030041 Compact boring system |
| 07/09/1991 | US5029500 Cam shaft tool |
| 07/04/1991 | DE4000025A1 Device for machining workpieces to slightly elliptical section - is subject to hydraulic pressure control from computer operating on tool carrier position and angle measurements |
| 06/27/1991 | WO1991008853A1 Tool for boring a hole in a work piece |
| 06/13/1991 | WO1991008075A1 Radial locator mechanism for a tool holder assembly |
| 06/12/1991 | EP0430984A1 Fineboring machine and process for producing bores with any polar and/or axial generating line. |
| 06/12/1991 | CN1052072A Cutter arbor and its composed hard alloy lathe tool |
| 06/04/1991 | US5020613 Device for cutting undercuts |
| 05/30/1991 | WO1991007636A1 Projectile for the dispersal of a load with time delay |
| 05/29/1991 | EP0290515B1 Rotary cutting tool |
| 05/29/1991 | CN1051692A Multifunctional rotary cutter saddle |
| 05/24/1991 | WO1991008071A1 Cutting-off tool |
| 05/21/1991 | US5017058 Mechanical fine adjust boring head |
| 05/15/1991 | EP0426808A1 Tool assembly with a hydraulic chip-breaking fluid system. |
| 05/07/1991 | US5012710 Device for the automatic engagement of the feed movement and of the return movement of the tool slide of a boring head |
| 05/02/1991 | EP0424844A2 Revolver for machine-tools |
| 05/01/1991 | CN2075993U Device for oscillatory cutting and ultraprecision machining |
| 04/25/1991 | DE4031428A1 Tool for machining out ring liners - has tool-bit guided by mechanical follower running on outer surface of ring |
| 04/24/1991 | EP0423426A1 Tool holder for autolathes |
| 04/24/1991 | CN1050837A Stepped central ultrasonic vibration cutting device |
| 04/18/1991 | WO1991004816A1 Internal cutting head for drifting pipe |
| 04/16/1991 | US5007314 Lathe |
| 04/16/1991 | US5007151 Machine tool turret |
| 04/16/1991 | CA1282984C Cross-feed facing head |
| 04/04/1991 | DE4029796A1 Drill rod with adjustable inserts - has cylindrical base body with drive stud and adjuster with rotary and slidable insert support |
| 03/28/1991 | DE4025932A1 Adjustable tool head for machine tool |
| 03/27/1991 | EP0418494A1 Positioning-device |
| 03/26/1991 | US5001871 Machine for precision machining, with a rod for the determination of the practical mean axis of a hole of cylindrical general contour |
| 03/21/1991 | WO1991003340A1 Device for holding and operating a facing head |
| 03/21/1991 | DE4026079A1 Facing-cutter head mechanism - has pistons coupled to setting rod actuated by coolant liq. pressure |
| 03/20/1991 | EP0418041A2 Tool unit, in particular for finishing operations of cutting machining |
| 03/20/1991 | CN2073335U Adjustable lathe tool |
| 03/20/1991 | CN2073334U Cutting tool for cutting internal circular-grooves |
| 03/19/1991 | US5000627 Apparatus for adjusting radial displacement from rotatable shaft |
| 03/14/1991 | DE3929006A1 Tool for machining round bar - has hard metal cutting insert which is positionally adjustable |
| 03/14/1991 | DE3929005A1 Support for screw thread rolling tool - incorporates dovetail groove to receive clamping strip |
| 03/13/1991 | EP0416611A2 Installation of an exchangeable tool holder on the turret of a lathe |
| 03/13/1991 | EP0416610A1 Toolholder for a machine tool, especially for turning machines, with interchangeable tool holder |
| 03/13/1991 | EP0416003A1 Revolving head for machine tool. |
| 03/12/1991 | US4998851 Vibration dampened boring bar |
| 03/10/1991 | WO1991003345A1 Tool head for use in machine tools |
| 03/07/1991 | WO1991002615A1 Tool for use in machine-tools |
| 03/07/1991 | WO1991002614A1 Insert for chip removing tools |
| 03/07/1991 | DE3926025C1 Machine tool precision boring head - has sprung tool support incorporating cooling line |
| 03/06/1991 | EP0415873A1 Bore undercutting tool |
| 02/21/1991 | WO1991001837A1 Portable boring machine |
| 02/21/1991 | DE4022966A1 Turning tool holder with cutting depth adjustment - has play between screwed tool holder spindle and adjusting sleeve removed by preloading of spring collet |
| 02/21/1991 | DE4022946A1 Rotating boring bar with fine diametral adjustment - has two=part bar with tool end radially adjustable by rotation of eccentric enveloping sleeve |
| 02/20/1991 | CN2071550U Universal multifunction combined holder for lathe |
| 02/20/1991 | CN2071549U Automatic driving and reversing mechanism for cutting groove in internal hole |
| 02/19/1991 | CA1280277C Machine tool |
| 02/14/1991 | DE3926605A1 Machining transition radii on mill rolls - involves roll stand mounted in machine to simultaneously form turn radii on complete roll set |
| 02/14/1991 | DE3926480A1 Tool turret with automatic tool changing mechanism - has plunger-actuated sliding wedge in cross-bore of spindle to move draw-bar and release tool |
| 02/14/1991 | DE3926026A1 Automatically balanced fine boring tool - has balance weight constrained to move in opposite sense to radial adjustment of boring tool |
| 02/07/1991 | WO1991001192A1 Tool for use in a machine tool |
| 02/05/1991 | US4990037 Portable boring machine |
| 01/31/1991 | DE4022728A1 Boring tool with fine diametral adjustment - uses kinematic chain comprising gear pair, lead screw and wedge to achieve fine adjustment of tool tip |
| 01/31/1991 | DE4022579A1 Boring tool with remote diametral adjustment - has finishing tool bit mounted on tilting beam supported against opposed wedges in central drawbar |
| 01/29/1991 | CA1279505C Line boring apparatus |
| 01/23/1991 | EP0409593A1 Turret-lathe machining method and apparatus therefor |
| 01/23/1991 | CN2069764U Vertical turret |
| 01/22/1991 | US4986151 Tool holder for a screw machine box tool |
| 01/17/1991 | DE3930121C1 Turret turntable holding tools - incorporates hydraulic cylinder operating mechanical clamp |
| 01/16/1991 | CN2069321U Multifunctional combined fixture |
| 01/10/1991 | DE3920969A1 Universal milling cutter, esp. for spherical machining - has system of dovetail slides and locking screws permitting accurate radial and axial tool adjustment |
| 01/09/1991 | CN2068870U 精密镗头 Precision boring head |
| 01/09/1991 | CN1048342A Precise, multi-function, four operating position, revalving auxiliary tool |
| 01/08/1991 | US4982633 Facing head with mass balancing |
| 01/08/1991 | CA2020134A1 Device for cutting undercuts |
| 01/01/1991 | US4981401 Boring bar with tool holder stations and control for same |
| 01/01/1991 | US4981057 Clamping device for connecting a tool head to a tool holder of a machine tool |