Patents for B23B 23 - Tailstocks; Centres (1,256)
03/2002
03/14/2002US20020029668 Lathe steady rest
03/14/2002DE10041420A1 Bearing for workpiece in machining comprises ceramic ballbearing of maximum accuracy to act as center tip engaging workpiece center hole.
03/07/2002DE10040952A1 Vorrichting zum reitstockseitigen Zentrieren und Spannen eines Werkstücks mit einemn kreiszylindrischen Ende Vorrichting the tailstock side centering and clamping a workpiece with einemn circular cylindrical end
02/2002
02/28/2002US20020025768 Device for the tailstock end centring and clamping of a workpiece with a circular-cylindrical end
02/26/2002US6350181 Process and device for the fine machining of the toothed gears of a gearbox
02/13/2002CN2476376Y Angle indicator for hand wrench
02/07/2002DE10035718A1 Werkzeugmaschine Machine tool
01/2002
01/31/2002WO2002007920A1 Machine tool
01/23/2002EP1174211A2 Steady rest
01/03/2002US20020000141 Live center an HSK taper shank actuated by a manual clamping device
01/02/2002CN1329528A Method and device for grinding workpieces with centers which comprise form variations
11/2001
11/28/2001EP0868240B1 Workholding apparatus
10/2001
10/04/2001EP1137505A1 Method and device for grinding workpieces with centers which comprise form variations
09/2001
09/25/2001US6293742 Machining center, contouring process, and tool supporting mechanism
09/11/2001US6287497 Compression molding, baking, rotation
07/2001
07/25/2001EP1118406A1 Centre point tip
07/04/2001CN2437436Y Automatic drilling rear base
07/03/2001US6254520 Manufacture of bags
06/2001
06/19/2001CA2235975C Workholding apparatus
05/2001
05/23/2001CN2431066Y Automatic telescopic device for tailstock sleeve of machine tools
02/2001
02/07/2001CN2417953Y Centre
12/2000
12/13/2000CN2410064Y Lathe tailstock with power sliding structure
11/2000
11/22/2000CN2406752Y Electric tailstock of lathe
11/08/2000CN2404616Y Drum-like, heat-radiation type machine tool rotary centre
09/2000
09/26/2000US6123000 Centering spindle for a machine tool including an isolation spacer
08/2000
08/02/2000CN2389740Y Outer heat-sink type rotary centre of machinetool
07/2000
07/13/2000DE19900011A1 Fine finishing process for toothed gear wheels uses continuous rolling grinding process for finishing teeth, bore and possible end sides in one clamping action
06/2000
06/22/2000WO2000035617A1 Method and device for grinding workpieces with centers which comprise form variations
06/22/2000CA2352426A1 Method and device for grinding workpieces with centers which comprise form variations
06/21/2000DE19857359A1 Verfahren und Vorrichtung zum Schleifen von Werkstücken mit Zentren, die Formabweichungen aufweisen Have method and apparatus for grinding of workpieces having centers which form deviations
04/2000
04/26/2000CN1251546A Precision center with interchangeable double-arcuate floating collet
04/19/2000CN2374294Y Lathe tailstock
04/12/2000CN1250410A Molded polytetrafluoroethylene article and method of production thereof
01/2000
01/19/2000EP0972613A1 Driving dog for machine tool
01/19/2000EP0972597A2 Center for use with a lathe
01/19/2000EP0971806A1 Precision center with an interchangeable double-arcuate floating collet
01/12/2000EP0970799A1 Molded polytetrafluoroethylene article and method of production thereof
12/1999
12/23/1999DE19826518A1 Computer numerically controlled machinetool
11/1999
11/24/1999CN2350150Y Live ball center device
11/17/1999CN2348956Y Centre mechanism
10/1999
10/20/1999CN2344116Y Suspension rolling lathe tailstock
09/1999
09/28/1999US5957017 Dead center for machine tools
07/1999
07/20/1999US5924344 Lathe
07/06/1999US5919083 Centering template for concentric grinding
06/1999
06/29/1999US5915428 Head and tail stocks for woodworking lathes
06/09/1999CN2322722Y Live centre
05/1999
05/25/1999US5906230 Versatile lathe chuck
04/1999
04/28/1999CN2316070Y Head-changed live center
04/13/1999US5893793 Process and apparatus for chucking and machining an elongated cylindrical article made of a ceramic material
11/1998
11/18/1998CN2297265Y Electric tailstock
10/1998
10/22/1998WO1998046385A1 Turret-mountable live center for lathes
10/13/1998US5819658 Engraver having universal cylinder mount
10/08/1998WO1998043765A1 Precision center with an interchangeable double-arcuate floating collet
10/08/1998CA2285083A1 Precision center with an interchangeable double-arcuate floating collet
10/07/1998EP0868240A1 Workholding apparatus
09/1998
09/29/1998US5813300 Precision center with an interchangeable double-arcuate floating collet
09/24/1998WO1998041386A1 Molded polytetrafluoroethylene article and method of production thereof
09/03/1998DE19708378A1 Silicone oil spring element
08/1998
08/25/1998US5797605 Workholding apparatus
07/1998
07/29/1998CN1189123A Manufacture of bags
05/1998
05/20/1998CN2281859Y Centre
05/12/1998US5749274 Cylindrical member and method of manufacturing the same
04/1998
04/29/1998EP0838303A1 Process and apparatus for chucking and machining an elongated cylindrical article made of a ceramic material
03/1998
03/31/1998US5732608 High-precision revolving center
02/1998
02/25/1998EP0710167A4 Universal cylinder mount for use in an engraver
02/18/1998EP0823876A1 Manufacture of bags
01/1998
01/14/1998CN1170152A Cylindrical member and method of manufacturing the same
07/1997
07/03/1997WO1997023320A1 Workholding apparatus
05/1997
05/21/1997CN2254384Y Static pressure floating rotary centre
04/1997
04/15/1997US5619895 Tailstock for a lathe providing hydraulic axial length compensation
03/1997
03/27/1997DE19534839A1 Centre punch for tailstock holder in lathe
03/13/1997DE19533456A1 Running centre on footstock of lathe
01/1997
01/29/1997CN2246032Y Split compressing appts. for machine
11/1996
11/21/1996DE19517927A1 Safety device for tailstock of lathe
11/20/1996EP0743118A1 High-precision revolving centre
11/19/1996US5575041 Resiliently yieldable tail stock device for use in a numerically controlled lathe
11/14/1996DE19618036A1 Centering pin for lathe
11/07/1996WO1996034737A1 Manufacture of bags
10/1996
10/30/1996EP0739669A2 Lathe with support for slender workpieces
10/09/1996CN2236915Y Tailstock of lathe
09/1996
09/18/1996CN2235342Y Novel tailstock for ordinary machine tool
08/1996
08/28/1996CN2233801Y Quick changing device for lathe tailstock
07/1996
07/02/1996US5531633 Method of machining a metal workpiece
06/1996
06/18/1996US5527400 Turning machine for producing a machined part with runout errors being minimized
06/11/1996US5525092 Device for preventing idle rotation in cylindrical ingot grinder
05/1996
05/22/1996CN2227636Y Side-inclined unloading device for skip
05/08/1996EP0710167A1 Universal cylinder mount for use in an engraver
05/01/1996CN2225917Y Live centre
02/1996
02/27/1996US5493939 Universal cylinder mount for use in an engraver
10/1995
10/25/1995CN2210736Y Force-showing centre
05/1995
05/03/1995CN2195989Y Centre of lathe
04/1995
04/27/1995DE4345088C1 Holding device for mounting workpieces to be measured
04/19/1995CN2194777Y Additional live centre fastening device
03/1995
03/16/1995DE4432582A1 Device for measuring radial forces at centres of machine tools
03/09/1995DE4431764A1 Method and arrangement for machining a workpiece
03/01/1995CN2190529Y Improved automatic lathe tail shaft table device
02/1995
02/02/1995WO1995003146A1 Universal cylinder mount for use in an engraver
01/1995
01/10/1995US5381213 Photoreceptor drum, charge roller and developer brush spinner device
12/1994
12/20/1994US5373760 Live center adapter assembly for machine tools
10/1994
10/19/1994CN2179797Y Centre
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