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WO/2000/038883A1 |
The invention relates to a rotating disk (2) for machining material surfaces, comprising a disk-shaped base part (4) which has a central hole (6); a first machining coating (12) which is subjected to wear by abrasion, has a cutting edge ...
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WO/2000/032369A1 |
The invention relates to a clamping device for fixing rotational tools such as circular saw blades, milling cutters and similar. A tool support (2) with a tool flange (20) which is configured vertically in relation to the hub axis (16) s...
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WO/2000/027587A1 |
A flange or mounting assembly (24) for mounting a cutting tool (26) on a drive shaft (22) of a motor (12), which includes an inner flange (30) having a spindle (50), an outer flange (32) and fastening means (36, 34) for retaining the out...
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WO/2000/027590A1 |
The invention relates to a clamping device for grinding discs (3, 4) comprising clamping elements which are formed by a clamping flange (1) and a clamping nut (2). A rigid, preferably metallic intermediate ring (5) is arranged between a ...
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WO/1999/065650A1 |
A dispenser and method for attaching abrasive sheets to a backup pad. The dispenser conveniently centers on the backup pad and abrasive sheet that is larger than the backup pad. In a preferred embodiment, the dispenser comprises: a holde...
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WO/1999/058300A1 |
An abrasive wheel, particularly for grinding cutting edges on blades, has a spiral abrasive surface (19) formed by assembling split rings (10), each edged with abrasive medium, onto a hub. The split rings bear on a spiral surface (24) of...
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WO/1999/056024A1 |
A threaded fasterner (10) includes a locking nut (12) arranged to engage with a threaded shaft (22), with nut (12) having a first surface (28) arranged to be screwed down against contact surface (15). First surface (28) is arranged such ...
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WO/1999/038652A1 |
A clamping hub for coupling a tool wheel (30) to a high speed rotary power tool (10) which can be made to operate in both the clockwise and the counter-clockwise directions and which will not become accidentally disengaged during operati...
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WO/1999/039107A1 |
A clamping device (10) for holding a rotating device tool (12) to a threaded shaft (14) includes a body member (16) having an annular ring (20) configured therewith. The annular ring (20) has at least two concentric ramped bearing surfac...
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WO/1999/038649A1 |
In a polishing machine for simultaneous double-sided polishing of workpieces (26) between upper polish plate (210) and lower polish table (20), the upper polish table (16) has a hollow center telescopically receiving in a drive hub (180)...
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WO/1999/037430A1 |
The magnetic chuck assembly (10) includes a conventional chuck (16) having a stem receiving opening (54, 38) and having structure (51-52 and/or 38) on or in the chuck for imparting a torque to a tool holder; a magnetic tool holder (12) h...
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WO/1999/024222A1 |
A backup pad for engaging and supporting abrasive sheets, the backup pad being mounted securely to a drive shaft to prevent relative rotation thereto, and to allow easy mounting and dismounting of the backup pad to the mounting shaft wit...
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WO/1999/024221A1 |
A surface treating article including a quick release fastener. The fastener includes a first end opposite the article, a second end adjacent the article, a tapered portion increasing in cross-sectional area in the direction from the firs...
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WO/1999/011431A1 |
The invention relates to a device and a method for treating a polishing pad, especially a polishing cloth for polishing wafers. The inventive device has a treatment disk which is mounted on a carrying device. Said treatment disk has a ba...
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WO/1999/004928A2 |
The invention concerns a clamping device for fixing a releasable disk-shaped tool on a hand-held machine tool. Said device comprises a first element, in particular a stop nut (1), capable of being screwed on the threaded shaft, whereon i...
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WO/1999/002306A1 |
A machine tool, particularly for grinding workpieces, has a single rotatable spindle (2) carrying a fixed cup-shaped inner grinding wheel (8) and an axially slidable cup-shaped outer grinding wheel (22). A T-shaped annular piston (14) en...
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WO/1999/000217A1 |
An abrasive grinding or finishing device mounting assembly which includes a hub cap (18) which is retained upon the threaded spindle (14) of a power tool (10). A hub (26) is permanently affixed to the abrasive device without the use of a...
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WO/1998/043779A1 |
A surface treating article and a system for retaining the article on a back-up pad using a retainer. The retainer and surface treating article are configured to allow the surface treating article to be conveniently removed without use of...
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WO/1998/039141A1 |
Opposed support surfaces (2c, 63b) of a clamping nut (2) and a clamping ring (63), which have a V-shaped cross section, support a wedge-shaped collet (5), which is capable of extending and contracting in a diametrical direction, has a ta...
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WO/1998/038014A1 |
The invention relates to a motor-driven hand unit comprising a shaft (10) driven by a motor, which shaft is mounted by means of a bearing (13) in a recess (16) of a housing part (12) and carries a fan wheel (14) at an axial distance ther...
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WO/1998/036181A1 |
An operating ring (7) is externally fitted, with the ability to rotate, to the main body of the locking nut in between a locking flange (3) and a flange of the locking nut (5); ball bearings (11) are inserted between the operating ring a...
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WO/1998/030129A1 |
A rotary surface treatment tool is attached to a rotational driver with a kit. The surface treatment tool includes a base with a middle portion around a center hole, and one or more attachment knobs are placed on the front side of the mi...
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WO/1998/024589A1 |
The present invention relates to a manually operated machine-tool, fitted with a disc-shaped tool (18) and a housing (10) for accomodating a work spindle (13), the free end of which (131) bears the tool (18) between a clamping ring (19) ...
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WO/1998/025034A1 |
To reduce the loss of clamping force, a clamp screw (110) of the invention is provided, when a flange ring (118) is in contact with the object to be attached (142), the rotation of the threaded member stops and a clamping state is entere...
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WO/1998/023410A1 |
The present invention relates to a manually driven machine (10) provided with a rotatively driven disk-type tool (22), for example a circular saw, a cage (12) accomodating a propulsion engine and a spindle (17) bearing a tool between an ...
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WO/1998/001259A2 |
A precision drill sharpener and grinding wheel assembly is provided, as is a corresponding drill chuck for use with the drill sharpener, in which the drill sharpener includes a lever and spring clip alignment subassembly for properly pos...
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WO/1997/042002A1 |
The invention concerns an electric hand-operated grinder having a tool holder (22) which is driven by a rotating eccentric pin (20) and, in order to hold a grinding tool, comprises a rapid-locking system (24) with mutually corresponding ...
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WO/1997/037812A1 |
A device for preparing metallographic samples has its power input rated so as to allow only safe voltage power supply, not exceeding 50 V AC or 150 V DC. It can be provided with indication of instantaneous power off-take and its DC elect...
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WO/1997/037814A1 |
A tool for grinding and polishing objects of varying geometric shape comprises a carrier (1) having a member (3) for connection to a driving unit imparting a movement thereto and a grinding member (4) provided with a grinding surface (5)...
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WO/1997/025542A1 |
A clamping screw (10) is provided with a threaded member (11) forming an attachment thread which screws together with the thread for attachment, an operating ring (12) supported on the outer surface of the outer end of said threaded memb...
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WO/1997/021519A1 |
The invention concerns an arrangement for detachably securing a disc-shaped tool (4) disposed on a drive spindle (2), said arrangement comprising a quick-gripping system (1). The disc-shaped tool (4) is disposed between a counter flange ...
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WO/1997/000757A1 |
The scope of the present invention is that to carry out all operations, necessary to the execution of the surface finishing of sanitary-ware and ceramic products, without the use of hand labour and in total absence of dust in the area su...
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WO/1996/023982A1 |
Hydraulic clamp bushing (13, 14) of the type comprising a double walled sleeve (7), a hydraulic pressure medium which is trapped in a chamber (5) between the sleeve walls, and means for pressurizing said pressure medium, and in which one...
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WO/1996/023627A1 |
The present invention relates to improvements in devices for use as grinding cups (30) for grinding the hard metal pins or working tips of drill bits and more specifically, but not exclusively, for grinding the tungsten carbide cutting t...
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WO/1996/019677A1 |
A clamp screw (10) that includes a threaded member with a threaded part having a female thread (22) which screws onto a threaded attachment part, and a shaft-shaped peripheral part formed on its outer surface, an operating ring (12) whos...
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WO/1996/006709A1 |
The invention relates to a tool holder on a machine tool for machining workpieces with high precision and great flexibility, especially a grinding wheel holder on a profile grinding machine. It is the aim of the invention to provide a to...
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WO/1995/019870A1 |
A method and apparatus for mounting a grinding wheel (26, 54, 78) on a spindle (10, 44, 66) is described so as to achieve positive radial location of the grinding wheel on the spindle. Retaining means (18, 36, 60, 74) is provided for bal...
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WO/1995/001240A1 |
The present invention aims to provide a screw (10) for fastening which is capable of being both fastened and loosened strongly simply with a direct manual rotating operation. The device (10) is provided with a screw member (11) with a fe...
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WO/1995/000288A1 |
A power tool spindle and tool-element assembly is provided which allows the tool element (10) to be threadably engaged with and tightened onto the spindle stud (18), and then subsequently removed after use, without the use of tools. The ...
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WO/1994/026462A1 |
A mounting means for securing alternative grinding wheels to the output shaft (11) of a portable rotary grinding machine, comprises a threaded clamping means (28) for engaging a thread on the output shaft (11) and a support hub (10) rigi...
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WO/1994/025221A1 |
The proposed invention is a clamping device for fast axial clamping of tools, especially disk-shaped ones, for example grinding wheels (10) for portable angle grinders, which is screwed onto the the threaded end (4) of the driving shaft ...
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WO/1994/025220A1 |
Apparatus (10) for grinding glass to form optical elements, especially prisms. The apparatus (10) has an improved mounting for grinding wheels (36). The finishing wheel (30) which can be used for the critical final grinding of the workpi...
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WO/1994/021428A1 |
An arrangement is disclosed for receiving a rotary body (412) in a centered and axially fixed manner, in particular a grinding wheel, on a supporting part (410) with an axial centering spike (418) which projects into the central opening ...
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WO/1994/021995A1 |
An apparatus for balancing a rotating body, in particular the grinding wheel (1) of a grinding machine, comprises an assembly secured to the grinding wheel and rotating with it, with masses (13, 14) having an adjustable arrangement, elec...
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WO/1994/013964A1 |
An improved fastener (10) comprises first and second disk-shaped components (12, 20) assembled so as to be rotatable with respect to each other about a common axis (18). The first component (12) has a pressure transmitting portion (14) a...
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WO/1994/011143A1 |
This invention enables a shell type milling cutter (4) to be mounted firmly on a cutter arbor (3) without any eccentricity, and, moreover, the milling cutter mounting and removing operations to be carried out easily and speedily. Since t...
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WO/1994/007042A1 |
A hydraulically assisted fastener has a pressure means (13) nested in a recess (15) or groove in a nut (11) or a thrust washer with a filler neck (20, 31, 44) whereat a nipple (14) can be used as a means of pumping grease or oil to the p...
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WO/1994/004312A1 |
An oscillating tool for sanding a surface has a body (12) defining an internal cavity (14) and a motor (20) located therein. The motor has a motor shaft (22) oriented in parallel with the body. A crank (24) is affixed to the motor which ...
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WO/1994/003788A1 |
An apparatus for balancing the grinding wheel (2) of a grinding machine, comprises an assembly coupled to and rotating with the wheel and including masses (24, 26) the position of which is adjustable and electrical motors (28, 30) to con...
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WO/1993/025346A1 |
This invention relates to a vibration dampening grinding cup (1) for handheld grinding machines for the grinding of hard metal buttons on button bits, comprising a grinding head (2) and a shaft (3) made with a common axial channel (4) fo...
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