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WO/1996/003243 |
In a tool-bit holder (1) for e.g. tool bits (3, 5) of cemented carbide or other hard material, in which the tool-bit holder has vibration-damping properties, the novel feature is that the tool-bit holder (1) in all essentials consists of...
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WO/1996/003242 |
In a tool-bit holder (1) for e.g. tool bits (3, 5) of cemented carbide or other hard material, the novel features are a) that the tool-bit holder (1) has vibration-damping properties, and b) that the bits (3, 5) are placed and oriented i...
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WO/1995/034397 |
A drilling tool for ejector drilling comprises tangentially located cemented carbide cutting inserts (10A, 10B, 10C), preferably three. This simplifies the making of the insert pockets quite considerably. Further, the semi-circle formed ...
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WO/1995/034398 |
A drill primarily intended for ejector drilling is made of one single piece, in order to avoid unroundness that arises when welding and to avoid weld joint gaps in which a chip may easily get wedged. Moreover, the drill is provided with ...
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WO/1995/033591 |
The invention relates to a method and an apparatus for making an elongated hole in a pipe (P) by means of a rotating conical drill (1). The elongation of a hole is accomplished such that, during the course of drilling, the conical drill ...
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WO/1995/030505 |
The invention relates to a drill and inserts therefor, for drilling in metal with improved performance in the smaller diameter range. The drill consists of a drill shaft (10), the front end of which is provided with radially outer and in...
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WO/1995/029783 |
The invention relates to a tool (1) and a cutting plate (7) for drilling into solid material, with a tool body and two cutting edges peripherally staggered by 180� of two releasable cutting discs, especially indexable inserts (7), with...
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WO/1995/029782 |
The invention concerns a tool for machining workpieces, in particular a cutting insert, having a plurality of groove-like and/or raised machining elements which are disposed along the cutting edge (11) and adjacent one another in a row. ...
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WO/1995/029030 |
A rotary tool is disclosed, in particular a drill bit, comprising a shaft (1) with cutting edges (2) at the cutting end and with coolant ducts (4, 5) running through the shaft in an essentially longitudinal direction (3) and opening out ...
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WO/1995/026258 |
A rotary tool, in particular a high-speed milling or boring tool, has at least two balancing rings (17, 18) with a variable mass around their circumference mounted on the tool holder or tool body (1). Two concentric balancing rings (17, ...
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WO/1995/025618 |
A cutting insert for use in a cutting tool has upper (2), lower (3) and side surfaces (4) and at least one cutting edge (10) formed at an intersection of the upper surface with the side surface thereof. A rake face (13) of the insert is ...
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WO/1995/024287 |
A cutting tool the most suitable for use in boring a valve hole in the cylinder head of an engine. A groove (11) is formed along a generator of a generally conical tool main body (1). A slider (16) with a cutting blade tip (5A) is slidab...
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WO/1995/016535 |
Described is a cutting-tool guide element with a bore (20) in the tool shank (4) comprising an inner thread (16, 10) and a threaded bolt (14) designed to be screwed into the thread (16, 10) of the bore (20) so that, when inserted, it is ...
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WO/1995/016534 |
To optimize tool geometry and potential applications with minimum outlay for production and to realize a new mode of operation with a milling and boring tool that is designed to produce recesses such as fits, blind holes or tapped holes ...
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WO/1995/015830 |
A deburring tool (10), and a cutting tool blade (24) and pivot member (32) therefor. The arbor (12) is formed with a cutting blade recess (14) for a cutting tool (16) having a flat resilient blade (24). The blade (24) is releasably secur...
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WO/1995/013894 |
The present invention provides a method of surface decarburizing a cemented carbide cutting tool. The tool is placed in a protective environnement. The tool is heated to an elevated temperature of between 600-1100 degrees C while in the ...
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WO/1995/007787 |
In the conical outer surface (24) of a cap sleeve (14) of a die chuck (10) there are two diametrically opposed recesses (26) in each of which there is a slide guide (28) for a slide (30) bearing a blanking die (52). The slides can be fit...
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WO/1995/004624 |
The invention relates to a twist drill, especially for metals. It has a substantially cylindrical basic component (1) divided into a shaft (2) and a cutting section (3), the central longitudinal axis (5) of which is the axis of rotation ...
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WO/1994/029056 |
The invention pertains to a rotary-driven stock-removing tool, in particular a drill or milling cutter, with at least one curved cutting edge at its end face which in drilling and milling work can be advanced into the workpiece in the di...
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WO/1994/027773 |
According to the invention, at least two cutting blades (3a, 3b) are attached to a body (4) on the opposite sides of a centre bit (2) at substantially an equal distance from the centre bit (2). The cutting point (6a) of the first blade (...
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WO/1994/027772 |
A drilling tool having an elongated body (1) with a longitudinal axis and provided with at least one pocket (6) and at least one indexable cutting insert (7) mounted in the pocket and an indexable cutting insert for use with the drilling...
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WO/1994/026448 |
A tool extender for machining machines consisting of an extender body (6) arranged to, in a known manner, be fixed in for instance a chuck (4) in a tool machine and provided with a holding means for a tool (15) in the form of a sort of h...
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WO/1994/025210 |
A rotary tool for drilling and chamfering in the same feed stroke has a base body (1), a drill (2) centrally clamped therein and a chamfering tool (6) arranged at the drill point end (4) of the base body and having a cutting body point (...
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WO/1994/021409 |
A threaded hole may be formed in a lid of an underground petrol tank without emptying the tank or removing the lid, using a tool (Figure 3) having a taper tap section (61), an intermediate tap section (62) and a final tap section (63). A...
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WO/1994/020247 |
A drill comprising a rod portion (1) connectable to an apparatus such as a drilling unit, as well as an operative cutting portion (2), said portions (1 and 2) forming a single disposable plastic unit.
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WO/1994/020249 |
Deburring tool, comprising a holder (2) from which an elongated sleeve (7) extends. A machining element (9) is arranged in the sleeve (7), close to the free end (8) thereof. Using means (16) which can be operated from the holder (2), sai...
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WO/1994/020251 |
A rotary cutter (1) comprises an elongate body portion (2) having at one end a shank (3) and at the other end a cutting head (4). At least one flute (5) is provided, of relatively short length, as is a radius (6) on the trailing end of t...
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WO/1994/020248 |
In known boring tools, the boring plates are radially and axially offset so that the forces acting on the cutting plates are identical. A new tool should have an appropriate arrangement of the cutting elements in order to carry out preci...
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WO/1994/016862 |
The tool (10) includes a central section (12) having a left-hand drill bit section (16) at one end and an extraction section (20) at the other. The extraction section (20) tapers toward its distal end and is formed with left-hand threads...
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WO/1994/015740 |
According to the invention there is now provided a drill head for long hole drilling provided with one or more cutting inserts. By using inserts of titanium based carbonitride alloy which are attached by brazing, followed by heat treatin...
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WO/1994/013422 |
A spiral drill and a method to manufacture a spiral drill with two indexable inserts at different distances from the center line and two coolant channels, where the coolant channels (23, 24) run parallel to the center line within the sha...
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WO/1994/013421 |
A precision twist drill including two helical teeth separated by flutes. The diameter is equal to the minimum diameter of the hole to be drilled +0.005 mm, the heel (3) has a width of 0.1-0.2 mm, the teeth have no foreside; the end is gr...
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WO/1994/012302 |
The invention relates to a polygonal cutting insert (10, 19) with raised chip shaping components (18) on the face (12) which are arranged side-by-side in a row at a distance from the cutting edge (13, 20) and which extend longitudinally ...
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WO/1994/012304 |
The invention relates to a cutting insert (20) with at least one chip guiding groove (25) in which threre are longitudinal ribs (27) running substantially perpendicularly to the cutting edge (22) and bridging at least partially the chip ...
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WO/1994/012107 |
A cutting wire for piercing and fixing bones has a point (3, 38) with a bit (6, 7) and a shaft (1, 45). The point (3, 38) of the cutting wire (1, 37) has a semicylindrical shape with a semicircular cross section (9) and a level surface (...
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WO/1994/012306 |
The proposal is for a solid drill having a basic body (3,103), a groove (9, 109) open at the front and receiving a cutter plate (7, 107), a clamp holding the cutter plate and guide strips (27, 127, 41, 43) inserted into the peripheral su...
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WO/1994/012305 |
The invention relates to a drill consisting of a substantially cylindrical holder (10) with a longitudinal axis (X) and a transverse axis (Y) perpendicular thereto, a drill tip (12) in which there is a groove (14) running along the trans...
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WO/1994/007635 |
A reaming tool comrpises a shank (30) with a cutting head (32) thereon, the cutting head (32) being detachable from the shank (30), so that it is readily replaceable, when worn, with a new cutting head.
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WO/1994/004303 |
Described is a method of producing deep bores, in particular in wood. In this method, misdirection of the drill is prevented and adequate chip removal is ensured. Intended for use in this method is a deep-bore drill comprising two hollow...
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WO/1993/024061 |
The invention relates to a surgical drill made of metal, for instance made of surgical grade stainless steel or carbon steel, intended for use when implanting cylindrical implants into bone tissue, preferably dental implants made of tita...
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WO/1993/016291 |
A masonry anchor for use in an undercut hole (2) comprises a nut portion (10) for engagement with an anchor bolt (50) and anchoring segments (14) which can displace resiliently outwardly into engagement with the undercut. The anchor is i...
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WO/1993/015865 |
A chamfering device incorporating a power tool for driving a rotary bur or the like provided with an elongated shaft and a cutting head, wherein the shaft is enclosed at a small clearance by a first, mainly tubular member, which, after m...
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WO/1993/010929 |
The invention concerns a lathe tool having a cylindrical shaft (10) and a head (18) with a contact surface (28) which rests against a support surface (26) on the shaft (10). The tool head (18) is detachably connected in force-locking fas...
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WO/1993/009731 |
A radiussing tool comprises an abrasive head (20) having a maximum diameter not greater than a drilled hole (21) in a bone (22) the internal end edge (23) of which it is intended to round off, a drive shaft (24) attachable at one end to ...
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WO/1993/002824 |
The invention relates to a cutting insert for cutting machining, especially for drilling in solid material, with at least three cutting angles (11) delimiting the cutting surface (12) and cutting edges (13) between two adjacent cutting a...
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WO/1993/002823 |
Wear resistant rotary machining tools including twist drill bits, slot drill bits, thread taps, end mills and reamers are disclosed. The tools comprise a body of cemented tandalum, titanium tungsten carbide (1) having a layer of abrasive...
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WO/1993/002817 |
This patent discloses a method of manufacturing an insert drill (20) having three or more flutes (28) and a three flute insert drill (20) that may be manufactured by the disclosed method. The method allows accurate machining of insert po...
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WO/1992/020484 |
A method and apparatus for cutting a hole of a predetermined desired hole diameter into a container having an internal lining. A first pilot hole is drilled in the container without cutting a hole through the said internal lining, the di...
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WO/1992/020483 |
A drilling tool has a drilling crown (12) removably arranged on a shank (10) at its front face, provided with two complementary elements that are mutually separated by chip channels (20) and that have partially circumferential surfaces (...
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WO/1992/012817 |
A drill with indexable inserts has one center insert (11) and one peripheral insert (12), said center insert having a symmetric drill point (25) continuous with one short edge (27) and one long edge (21, 23) and a screw hole offset from ...
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