| Patents for B24B 47 - Drives or gearings for grinding machines or devices; Equipment therefor (3,586) |
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| 10/02/1991 | CN2085702U Micro-feeding mechanism for universal knife grinder |
| 09/18/1991 | EP0446849A2 Device for monitoring a tooling process |
| 09/12/1991 | DE4105756A1 Workpiece table-slewing drive - has table-shaft sprocket coupled by chain driven by spindle to another sprocket |
| 09/11/1991 | CN2084406U Flexible transmission device for terrazzo machine |
| 08/22/1991 | WO1991012111A1 Computer-controlled grinding machine for producing objects with complex shapes |
| 08/14/1991 | DE4004378A1 Tool wear determn. from friction with dressing tool - is measured by one or more vibration parameters |
| 07/02/1991 | US5027562 Numerically controlled grinding machine for grinding a tapered surface of a workpiece |
| 06/19/1991 | EP0433114A1 Method and apparatus for measuring the edge thickness of a spectacle lens |
| 06/18/1991 | US5024315 Method of distributing workpieces between a conveyor and workstations |
| 06/12/1991 | EP0432078A2 Lens bevelling machine |
| 05/08/1991 | EP0426551A2 Apparatus for judging whether an uncut lens should be machined or not and lens grinding machine having the same |
| 05/07/1991 | US5013984 Indicator for a reciprocating member |
| 04/16/1991 | US5007204 Apparatus for shaping ingots into right circular cylindrical form |
| 04/02/1991 | US5004930 Method and device for setting the angular position of a workpiece on a machine-tool by means of a laser beam |
| 03/13/1991 | EP0416258A1 A method for detecting the coordinate position of the grinding point of a grinding wheel and related device |
| 03/12/1991 | US4998383 Means for resetting a cylindrical grinding machine |
| 03/06/1991 | EP0415239A2 A numerical control device for a grinding machine |
| 02/20/1991 | EP0413509A2 Apparatus for detecting machining states in a machine tool |
| 02/19/1991 | US4993097 Circuit board deburring system |
| 02/19/1991 | US4993096 Circuit board deburring system |
| 02/12/1991 | US4991356 Ultra-precision grinding machine |
| 02/05/1991 | US4989376 Control mechanism for advancing parts of a machine tool |
| 01/15/1991 | US4984392 Chamfering the notch of a semiconductor wafer |
| 12/20/1990 | DE3926233C1 IC engine cam shaft grinder - has four equi-spaced valve cams per cylinder to form pattern for chucked shaft, and collet-type holder pairs for grinding tools |
| 12/05/1990 | EP0401161A1 Method and machine for manufacturing glass plates |
| 11/08/1990 | DE3914886A1 Gewindeschleifmaschine Thread Grinding Machine |
| 11/08/1990 | DE3914885A1 Gewindeschleifmaschine Thread Grinding Machine |
| 11/06/1990 | US4967515 Numerically controlled grinding machine |
| 10/24/1990 | EP0394209A2 Improvement in and relating to grinding machines |
| 10/23/1990 | US4964239 Machine for grinding the edges of a lens |
| 10/16/1990 | US4963710 Process and device for mechanical grinding or sharpening of workpieces by use of electrically conductive grinding or sharpening tools |
| 10/16/1990 | US4963164 Machine for surface treatment with means for positioning processing tools |
| 10/03/1990 | CN2063066U Grinding head box of jig grinder controlled numerically by continuous trace |
| 09/26/1990 | CN2062671U High-speed internal grinding head of static and dynamic pressure bearing |
| 09/18/1990 | US4956946 Numerically controlled grinding machine |
| 09/18/1990 | US4956945 Internal grinder |
| 09/13/1990 | DE4006662A1 Machine for grinding large flat workpieces - has workpiece transport belt which can be inclined to horizontal |
| 09/13/1990 | DE3906438A1 Robot grinding tool |
| 08/28/1990 | US4951419 Flexible manufacturing system |
| 08/07/1990 | US4947090 Control for reciprocating part in a machine tool |
| 08/07/1990 | US4947015 Process for the control of the feed motion and touch-on motion of a grinding wheel |
| 07/25/1990 | EP0379427A2 Uncut lens judging apparatus for lens grinding machine |
| 07/25/1990 | EP0379426A2 Method for grinding a lens and apparatus thereof |
| 07/18/1990 | EP0377796A2 Measuring and alignment device for a cylindrical grinding machine |
| 07/18/1990 | EP0252090B1 Process and device for resetting a cylindrical grinding machine |
| 06/27/1990 | EP0374606A1 Method and apparatus for positioning a work piece on a machine tool at an angle by the use of a laser beam |
| 06/27/1990 | EP0374587A2 Spectacle glasses bevel grinding machine |
| 05/29/1990 | US4928437 Means and method for resetting a cylindrical grinding machine |
| 05/22/1990 | US4926604 Method for correcting abrasion in a robot having a wearing tool mounted thereon |
| 03/21/1990 | EP0359591A2 Apparatus for shaping ingots into right circular cylindrical form |
| 03/14/1990 | EP0358409A2 Lens grinding methods and apparatus |
| 03/13/1990 | US4907372 Cylinder bore finishing apparatus tilt fixture |
| 02/22/1990 | DE3919359C1 Grinding machine tool support with linear tool holder - has inner eccentric bush, holding vibration axis bush in its bore |
| 02/15/1990 | DE3827122A1 Method and apparatus for grinding the edge of a spectacle lens |
| 01/31/1990 | EP0352635A2 Numerically controlled grinding machine |
| 12/27/1989 | EP0347847A2 Automatic centreless finishing apparatus for articles with a rotation-symmetric surface in a pass-through machine |
| 12/13/1989 | EP0243389B1 Device for reducing the roughness |
| 11/21/1989 | US4881347 Ski repairing machine |
| 11/09/1989 | DE3814670A1 Spectacle lens edge-grinding machine |
| 11/07/1989 | US4878315 Griding guide and method |
| 10/05/1989 | DE3809400A1 Drive device for displacing a movable machine part, in particular on grinding machines |
| 10/04/1989 | CN1035976A Installation of grinding machine of coreless center hole of needle valve body of oil nozzle |
| 09/20/1989 | EP0333352A2 Internal grinding machine |
| 09/19/1989 | US4866884 Lens grinding methods and apparatus |
| 09/12/1989 | US4864895 Method and apparatus for adjusting the true running of the cutting edge of annular saw blades |
| 08/30/1989 | EP0329740A1 Drive mechanism for producing planetary motion |
| 08/29/1989 | US4860500 Passive actuator to maintain a constant normal cutting force during robotic deburring |
| 07/12/1989 | EP0323518A1 Device for vibrating work to be ground |
| 07/12/1989 | CN2040836U Internal spline and key flank grinding machine |
| 07/06/1989 | DE3831860A1 Arrangement for torque-dependent control of the compressed air supply in compressed air machine tools |
| 06/14/1989 | EP0295264A4 Electrical discharge machining by redressing electrodes. |
| 06/07/1989 | EP0318966A2 Machine for processing surfaces with a device for positioning work tools |
| 06/07/1989 | EP0318965A2 Flexible manufacturing plant |
| 05/16/1989 | US4829715 Machines for grinding and bevelling ophthalmic glasses |
| 05/09/1989 | US4827672 Abrasive cutting wheel system |
| 05/02/1989 | US4827204 Synchronous motor with dynamic damping |
| 04/18/1989 | US4821460 Arrangement for controlling the speed of advance of a tool toward a workpiece |
| 03/14/1989 | EP0294478A4 Improved grinding guide and method. |
| 03/09/1989 | WO1989001846A1 Drive mechanism for producing planetary motion |
| 03/01/1989 | EP0304907A2 Method and control of both the initial and final feed movements of a grinding wheel |
| 02/08/1989 | CN2032114U Automatic grind polishing apparatus |
| 01/31/1989 | US4800683 Grinding machine for the grinding of elongated workpieces |
| 01/18/1989 | EP0299451A1 Apparatus for adjusting the concentricity of the cutting edge of annular internal-hole saw blades |
| 01/10/1989 | US4797074 Governor device |
| 01/04/1989 | EP0297879A2 Motor speed controller for a pressure fluid-operated motor |
| 12/29/1988 | WO1988010174A1 Device for vibrating work to be ground |
| 12/21/1988 | EP0295264A1 Electrical discharge machining by redressing electrodes. |
| 12/20/1988 | US4791759 Grinding wheel position detecting means for surface grinding machine |
| 12/14/1988 | EP0294478A1 Improved grinding guide and method. |
| 12/07/1988 | EP0293673A2 Method and apparatus for mechanical grinding of workpieces by electric conductive worktools |
| 10/11/1988 | CA1242901A1 Variable orbital drive mechanism and method |
| 09/27/1988 | US4773187 Numerically controlled grinding machine |
| 09/13/1988 | US4769952 Abrasive-supporting head for honing machines |
| 09/07/1988 | EP0281480A1 Ophthalmic glasses bevelling machines |
| 08/16/1988 | US4763448 Centerless grinding machine |
| 08/02/1988 | US4760671 Method of and apparatus for automatically grinding cathode ray tube faceplates |
| 07/14/1988 | WO1988004977A1 Improved grinding guide and method |
| 07/13/1988 | CN87210743U Dust-collecting pneumatic polishing machine |
| 06/28/1988 | US4754115 High speed electrical discharge machining by redressing high resolution graphite electrodes |
| 05/19/1988 | WO1988003452A1 Electrical discharge machining by redressing electrodes |