Patents
Patents for B23B 3 - General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines (2,606)
04/1991
04/25/1991DE4031428A1 Tool for machining out ring liners - has tool-bit guided by mechanical follower running on outer surface of ring
04/18/1991WO1991004812A1 Method of controlling rotations of main shafts
04/16/1991US5007314 Lathe
04/16/1991US5007151 Machine tool turret
04/11/1991DE3930221A1 Tool turret attachment for lathe - has built-in Y-axis driven through lead-screw and stepping motor
04/09/1991US5005452 High production machining device
03/1991
03/28/1991DE4025932A1 Adjustable tool head for machine tool
03/21/1991WO1991003340A1 Device for holding and operating a facing head
03/20/1991EP0418213A2 Manually controlled lathe
03/12/1991CA2025004A1 Manually controllable lathe
03/10/1991WO1991003345A1 Tool head for use in machine tools
02/1991
02/26/1991US4995300 Lathe for generating aspherical surfaces on work pieces
02/13/1991EP0412635A2 High production machining device
02/06/1991EP0411387A1 C-axis-gearing
01/1991
01/30/1991EP0410044A1 Lathe with three spindles for workpieces
01/29/1991US4987807 Multispindle lathe
01/29/1991CA1279508C Bearing arrangement for portable lathe
01/15/1991CA1278911C Flexible machining system
01/08/1991US4982634 Multiple-spindle automatic lathe
01/08/1991US4982496 Method of making lug journal for roller cutter drill bits
01/02/1991EP0405112A2 Thermo-neutral guiding means
01/02/1991EP0405111A2 Machine bed with overhang
01/01/1991US4981055 Portable facing tool
12/1990
12/27/1990WO1990015692A1 Rotatably driven spindle
12/27/1990EP0403843A2 Spindle driving device for a machine tool
12/19/1990EP0402506A1 Driven spindle
12/18/1990US4979121 Control method and apparatus for controlling machining operations in a machine tool having a plurality of coordinate systems
12/11/1990US4976176 Use with a portable lathe
12/06/1990DE3918118A1 Plandrehkopf mit massenausgleich Facing head with mass balancing
09/1990
09/20/1990WO1990006579A3 Improved disc unit
09/19/1990EP0387513A1 Tool carrying slide for lathes
09/19/1990CN2062264U Horizontal machine tool for working load-bearing saddle
09/05/1990EP0385315A2 Remaining bar material machining method for NC lathe
09/04/1990US4953274 Machine tool with two workpiece spindles
08/1990
08/29/1990EP0384907A1 Method and device for producing an article from a blank
08/28/1990US4951376 Machine tool
08/21/1990US4949444 Machine tool machining method
08/21/1990US4949443 Numerically controlled lathe
08/16/1990DE3904281A1 Tool turret
07/1990
07/31/1990US4944205 Ratchet feed drive for clamshell lathe
07/17/1990USRE33262 Automated turret lathe
07/05/1990DE3844338A1 Method and apparatus for machining workpieces of long-chip material
07/04/1990EP0375899A2 Digitally controlled lathe with a sliding headstock
06/1990
06/27/1990EP0374259A1 Two opposed main shaft type cnc lathe
06/21/1990DE3842190A1 Lathe
06/14/1990WO1990006579A2 Improved disc unit
06/14/1990WO1990006201A1 A boring and surfacing machine
06/06/1990EP0371450A2 Headstock-reciprocating-type automatic lathe and machining method using the same
05/1990
05/29/1990CA1269798A1 Extruded closed cell thermoplastic foam
05/23/1990EP0369232A2 Machine tool
05/23/1990EP0368977A1 Multifunctional machine-tool for complex machining of long pieces.
04/1990
04/25/1990EP0364593A1 Machine tool having two main spindles
04/12/1990DE3834342A1 Lathe
03/1990
03/13/1990CA1266555A1 Apparatus for machining workpieces and method therefore
03/07/1990EP0356759A2 Lathe with concentrically disposed work piece spindles
02/1990
02/14/1990EP0354393A2 Machine for working terminals
02/13/1990US4899793 Duplicating system for a lathe
01/1990
01/25/1990DE3824602A1 Machine for machining cubic and rotationally symmetric workpieces
01/10/1990EP0349641A1 Machine tool
12/1989
12/28/1989WO1989012535A1 Spindle drive for a veneer lathe
11/1989
11/30/1989WO1989011374A1 Multifunctional machine-tool for complex machining of long pieces
11/23/1989DE3913137A1 Machine tool having a tool-change device
11/21/1989US4881309 Flexible machining system
11/15/1989EP0342153A1 Auxiliary device for precisely turning a work piece
11/07/1989CA1262621A1 Twin disc type tool turret mechanism for cnc machines
11/02/1989WO1989010223A1 Two opposed main shaft type cnc lathe
10/1989
10/31/1989US4876931 Device for machining a sealing groove on an engine block
09/1989
09/27/1989EP0334298A2 Method and device for machining articles having a rotational symmetry
09/26/1989US4868969 Process for producing workpieces
09/21/1989WO1989008533A1 Machine tool having two main spindles
08/1989
08/31/1989DE3803219A1 Numerisch gesteuerte bearbeitungsmaschine mit zwei werkstueckspindeleinheiten Numerically controlled processing machine with two werkstueckspindeleinheiten
08/16/1989EP0328392A2 A method of machining a workpiece by a machine tool
08/09/1989CN1034498A Multiple automatic lathes
08/03/1989DE3802492A1 Turning machine (lathe)
08/03/1989DE3802491A1 Double-spindle turning machine
08/01/1989US4852436 For machining an aspheric surface
08/01/1989US4852435 Portable flange facer
07/1989
07/25/1989US4850761 Milling process and tool
07/18/1989US4848422 Rotary spindle former
07/18/1989US4847960 Tool turret
07/13/1989WO1989006176A1 Lathe
07/04/1989US4843691 Lathe
06/1989
06/29/1989DE3743001A1 Copying device for a wood turning machine
06/20/1989US4840095 Turning machine
06/14/1989EP0319731A2 Lathe with axially movable spindle head
06/14/1989EP0193533B1 Lathe
06/13/1989US4837918 Machine tool assembly
06/08/1989DE3740223A1 Tool turret for lathes, with linear tool holders
05/1989
05/24/1989CN2038040U Additional equipment of the reel cart with bending-rope slot
05/16/1989US4829860 Segmented sliding bearing arrangement for portable lathe
05/10/1989EP0314802A1 High-efficiency tool selection system
05/09/1989US4827815 Hollow-spindle method of machining a short-length workpiece
05/09/1989US4827814 Lathes
04/1989
04/26/1989EP0312944A2 Multi-spindle automatic lathe
04/25/1989US4823655 Multi-speed drive system for a portable lathe
04/19/1989CN2036075U Brake device for c 616 lathe
04/12/1989EP0310811A1 Dualspindle lathe
04/05/1989EP0310219A2 Machining control apparatus and machining control method in a machine tool
04/05/1989EP0309951A1 Machine tool with two work piece spindles
03/1989
03/21/1989US4813311 Center drive machine
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