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Patent Searching and Data


Matches 401 - 450 out of 9,083

Document Document Title
WO/2009/051150A1
In a machine tool of the type, in which a working tool attached to a rotating main spindle rotates to subject a work to a machining work such as a grinding or cutting operation, there is provided a working tool protecting device for prev...  
WO/2009/051192A1
A hydrostatic slide device in which the number of surfaces forming a hydrostatic bearing is reduced as much as possible and a clearance in a hydrostatic bearing portion is maintained uniform with high precision. A first slide portion (10...  
WO/2009/041417A1
Intended is to make it possible to grind the surface of a coating roll highly precisely, even if the roll is long. Provided is a coating roll working method for grinding the surface of a roll (14) by rotating the roll (14) while the two ...  
WO/2009/034588A1
A grinding assembly (3) is described, for a grinding head (1) for a grinding machine of glass slabs (2), comprising: a first (5) (and possibly a second (7) ) grinding wheel adapted to tangentially work on the glass edge (2) and whose rot...  
WO/2009/035073A1
A polishing apparatus is provided with a press-rotating mechanism (50) and a slurry supply mechanism (30). The press-rotating mechanism brings a substrate (W) and a polishing pad (22) into contact with each other by pressing them with a ...  
WO/2009/027939A2
The part to be machined (2) is attached so that its axis lies in a position exactly determined relative to the base of the machine (1) and to the pedestal (3) due to the flanges (8) and the rear face (9) of the V formed on the pedestal, ...  
WO/2009/027940A1
According to the invention, the pin (6) is rotated by the motor (5) via the belt (10) and the pulley (11) that is precision-held on the fixed bushing (13). It comprises a pin arm (16) whose solid rear portion (20) rotates in the bushing ...  
WO/2009/019185A1
There is disclosed a working process for obtaining the pack clearance in hydraulic rotary volumetric machines (1, 20) including means (5, 16-17) to transmit the hydraulic fluid from an inlet mouth (10) to an outlet mouth (11) housed betw...  
WO/2009/012444A1
Retaining rings with curved or chamfered surfaces are described. The curved surfaces prevent damage to a fixed abrasive polishing pad when the retaining ring is used in a polishing process. The curved or chamfered surfaces are on the bot...  
WO/2009/007301A2
The invention relates to a method for the hydrodynamic support and centering of a rotating workpiece during grinding and a steady rest (10) usable for this purpose. According to the method, the bearing to be supported is impinged upon by...  
WO/2009/001643A1
Intended is to improve a grinding precision in a double head grinder with a simple structure, thereby to prevent the offset wear of grinding wheels (2). Provided is a double head surface grinder, which comprises a pair of grinding wheels...  
WO/2008/128804A1
A motor-driven machine tool with a drive shaft and a driven shaft on which the tool is received comprises an eccentric coupling device via which the rotational movement of the drive shaft is transmissible onto the driven shaft. A mass ba...  
WO/2007/101008A3
Various forms of knife guides are provided for knife sharpeners to minimize damage to the knife blade (3). The knife guides includes provision of flexible fibers (27) on the guide surface (37), or further include rings (15), such as O-ri...  
WO/2008/128758A1
The invention relates to a steady rest (2) for holding a workpiece, especially a piercer, between both ends of the steady rest in a vibration-free manner, said workpiece being clamped at both ends and to be machined especially by means o...  
WO/2008/130317A1
The invention relates to a grinding holder (10) for connecting a rotary driven tool (20) to a device (30) for machining floor and road surfaces, comprising a first plate member (40) for detachable attachment of the tool (20), and a secon...  
WO/2008/117768A1
A lens holder (8) is composed of a holder main body (12) made of a metal, and an elastic member (14) for holding the process center portion (13) of a lens (7) to be processed. The holder main body (12) has a fitting hole (20) formed at t...  
WO/2008/113925A1
The invention relates to a cleaning device including at least one jaw provided with inserts urging an abrasive web against a span to be machined about the axis thereof, the span being driven relative to the jaw according to a rotation mo...  
WO/2008/087551A3
Positioning and blocking device (20) for steady rests (10) comprising a substantially flat carriage (21) provided with translation means (23) and blocking means (22) characterised in that said blocking means are magnetic.  
WO/2008/107087A1
The invention regards an edge trimming group for glass panes covered by a low emission film. Such group is characterised in that the abrasive tool is made up of a brush of the so-called "paintbrush" type, with bristles made of steel or a...  
WO/2007/126815A3
Methods of and systems for polishing an edge of a substrate are provided. The invention includes rotating a substrate (100) against a polishing film (204) so as to remove material from the edge of the substrate; and detecting an amount o...  
WO/2008/097564A1
The present invention relates to an ophthalmic holding mechanism for holding an eyeglass frame. The holding mechanism includes a base, a clamping mechanism configured for releaseably securing a lens mount of an eyeglass frame, and an act...  
WO/2008/087551A2
Positioning and blocking device (20) for steady rests (10) comprising a substantially flat carriage (21) provided with translation means (23) and blocking means (22) characterised in that said blocking means are magnetic.  
WO/2008/080240A1
A bearing ring grinding machine comprising a grinding unit arranged to provide machining quality with micron-size tolerances and a reduced grinding cycle period. To this end, the grinding unit (13) comprises a fixed plate (13a) on which ...  
WO/2008/074174A1
The device (10) for automatically feeding a machining work station (12) of a machine tool, such a grinding machine, with mechanical parts (11), particularly inner or outer rolling bearing rings, comprises transfer means (14) for conveyin...  
WO2008041011A8
A drill bit setting device (40) includes a holder (42) for holding in use a drill bit (10) substantially in alignment along a longitudinal axis (76) of the bit (10). The drill bit setting device (40) includes first limit means (70) for l...  
WO/2008/069748A1
The invention relates to a device (1) at a mobile grinding machine (2) for stone materials and that comprises a rotatably driven disc-shaped housing (3), which is arranged to support a plurality of grinding disc holders (6) rotatably dri...  
WO/2008/062280A2
A circular abrasive disc support has a center. The disc support also includes a mount for mounting the support to a rotating drive. The mount is offset from the center to provide an offset connection to the rotating drive. An abrasive on...  
WO/2008/058775A1
Method for the production of a turbine blade with a blade root and a blade, during which a blank of the turbine blade is molded, the blank with the blade thereof is positioned and fixed in a holder, and the final shape of the blade root ...  
WO/2008/049459A1
The present tool holder (1) has at least two tool spindles (2) arranged in the tool holder (1) for the accommodation of grinding tools (40), wherein the tool spindles (2) are arranged such that they rotate around the axis (H) thereof, dr...  
WO/2008/045132A1
A two part retaining ring (101) is described. An rigid upper portion (110) has an annular recess along its inner diameter. An annular wearable lower portion (105) has an inner diameter, an annular extension (225) defined by the inner dia...  
WO/2008/041011A1
A drill bit setting device (40) includes a holder (42) for holding in use a drill bit (10) substantially in alignment along a longitudinal axis (76) of the bit (10). The drill bit setting device (40) includes first limit means (70) for l...  
WO/2008/037021A1
Extension pole apparatus includes an attachment component (20,100) having an elongate body (22,105) that is adapted to receive a tubular or rod like component so that the latter extends generally parallel to the longitudinal direction of...  
WO/2008/031463A1
A polishing head comprises first tool-holding shafts (9) rotating in a first rotating direction (L) and associated with first transmission means (21, 26, 50), and second tool-holding shafts (20) rotating in a second rotating direction (M...  
WO/2007/145576A3
The present document discloses a method for providing an improved roadway (30). The method comprises forming a wearing coat (32) of the roadway (30) by treating the roadway with a grinding and/or cutting tool.  
WO/2008/019683A1
The invention relates to a spindle (1) for a machine tool, in particular a motor spindle, with a housing (2) for accommodating an electric motor (3) and a shaft (4) that can be driven by the latter, and with a tool holder (5) for a tool ...  
WO/2007/149705A3
Edge modifying apparatuses that include a disc chuck, a disc edge modifying unit having an abrasive article support, and a uniform velocity linear oscillation driver coupled to at least one of the disc chuck and the abrasive article supp...  
WO/2008/015771A1
Hole (10) having nonthrough portion (10-3) is provided in an area of wafer adhesion of a support plate capable of facial support through wafer adhesion by means of an adhesive member so as to suppress dimpling of the wafer.  
WO/2008/003540A1
The invention relates to a hand-held electric power tool comprising at least one driven rotating part (3) that is mounted in at least one bearing (7, 13). According to the invention, the rotating part (3) is vibrationally decoupled from ...  
WO/2007/149705A2
Edge modifying apparatuses that include a disc chuck, a disc edge modifying unit having an abrasive article support, and a uniform velocity linear oscillation driver coupled to at least one of the disc chuck and the abrasive article supp...  
WO/2007/145576A2
The present document discloses a method for providing an improved roadway (30). The method comprises forming a wearing coat (32) of the roadway (30) by treating the roadway with a grinding and/or cutting tool.  
WO/2007/091141A3
The shaping device (5) suitable for shaping the edges of products (M) and obtaining shaped edges, comprises abrasive means (11, 12) supported so as to come into contact with said edges of said products (M), said abrasive means (11, 12) b...  
WO/2007/077492A3
A polishing machine for optical elements, comprising: - a spindle arranged to rotationally drive an optical element; - a polishing tool mobile relative to the spindle; - a front face provided with a door enabling the access to the spindl...  
WO/2007/132263A1
The present invention provides a machining apparatus (1) for machining an outer periphery of a generally cylindrical work piece, comprising rotating means (20) arranged to grip an outer periphery of a work piece at an intermediate region...  
WO/2007/098750A3
The invention relates to a grinding spindle unit (1) comprising a stationary shaft and a ring motor which comprises a stator (4) and a rotor (10). The stator (4) is rigidly connected to the shaft, the rotor (10) is embodied as a hollow s...  
WO/2007/126815A2
Methods of and systems for polishing an edge of a substrate are provided. The invention includes rotating a substrate (100) against a polishing film (204) so as to remove material from the edge of the substrate; and detecting an amount o...  
WO/2006/025043A3
Disclosed is a method and apparatus for balancing a gemstone working member. The method is a sequence of predefined operations that uses masses (60) attached to the working member (54) to introduce a certain unbalance and as balancing ma...  
WO/2007/122961A1
A lens processing device has a lens holder (11), a holder support mechanism (12), a rotation drive mechanism (13), and processing mechanisms (14). The lens holder (11) has a holding mechanism (17) provided with a through-hole (15) that c...  
WO/2007/113510A1
The present invention relates to a tool holding rig (1) for use in sharpening tools and blades (28) using a bench grinder (30). The tool holding rig (1) comprises a complete power tool which is powered separately from the bench grinder (...  
WO/2007/105611A1
Provided are a holding jig which can eliminate troubles due to use of a protection sheet, a semiconductor wafer grinding method, a semiconductor wafer protecting structure, a semiconductor wafer grinding method using such semiconductor w...  
WO/2007/101008A2
Various forms of knife guides are provided for knife sharpeners to minimize damage to the knife blade (3). The knife guides includes provision of flexible fibers (27) on the guide surface (37), or further include rings (15), such as O-ri...  

Matches 401 - 450 out of 9,083