Wedge Clamp Element Patents (Class 407/49)
  • Patent number: 4743307
    Abstract: Sugar cane is processed using an apparatus, which includes an input end with a comb back conveyor for controlling the quantity of cane passing to the remainder of the apparatus; an aligning; first cleaning and thin out section, where randomly oriented cane stalks are aligned and foreign bodies, especially stones and ferrous objects are removed from the cane; a billeting or cutting section for cutting the stalks into billets; a second cleaning section in the form of a cleaning tower in which vertically moving air is used to remove leaves, dust and any other trash from the flow of cane; a chute and pivotally mounted swing conveyor for distributing cane billets in an elongated, partitioned distributing hopper; a surge elimination chute; a billet aligner and delivery unit for delivering cane billets to a plurality of separators for separating the epidermis from the cane billets and separating the rind from the core; and a discharge section, including conveyors for discharging the separated material from the appar
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: May 10, 1988
    Inventor: William Mason
  • Patent number: 4730644
    Abstract: In a device for securing cloth-forming parts (19) to the sley of a loom, two clamping members (71, 72, 91, 92) directed towards one another wedge-fashion are tightened on one another by a clamping screw (6), the clamping members bearing on one side in the sley by way of clamping surfaces (140, 141) disposed at an inclination to the screw axis. At least one of the parts bears on its other side directly on the cloth-forming part (19). The second clamping member (71, 72) can bear on its other side on the first clamping member (91, 92). Consequently, the securing elements (71, 91, 6) can be introduced preassembled into the corresponding groove (16) in the sley, so that assembly is rapid.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: March 15, 1988
    Assignee: Sulzer Brothers Limited
    Inventor: Erwin Schwarz
  • Patent number: 4708536
    Abstract: An expandable wedge assembly which releasably secures a cutting blade or wafer like indexable insert in a pocket of a cutting tool. The wedge assembly includes flexible legs which expand or flex outwardly to secure the insert against a wall of the pocket and which unexpand or unflex to release the insert for indexing or replacement. Preferably, a screw and ball means movable in a bore in the wedge effect the flexing and unflexing of the wedge. A locater assembly for positioning the insert in the pocket also can be provided. Preferably, the structure and operation of the locator is similar to the structure and operation of the wedge.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: November 24, 1987
    Assignee: General Electric Company
    Inventor: Jack O. Sullivan
  • Patent number: 4706534
    Abstract: Rotating cutting element (1) having a row of cutters (5) placed in recesses at the circumference of a disc. Each recess has radially extending V-shaped front and rear edges (4,3), each cutter (5) has V-shaped front and rear edges (6,7) with the apexes facing away from each other. Each cutter (5) is held in the recess against an abutment (9) by means of a wedge (10) which is tensioned by means of a screw (15).
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: November 17, 1987
    Inventor: Cornelis Smolders
  • Patent number: 4687383
    Abstract: An insert rotary cutter incldues a cutter body having an axis of rotation therethrough. The cutter body has a plurality of pockets formed in one end thereof in circumferentially distributed relation. A plurality of support members are attached respectively to the pockets. Each of the support members has a recess being open radially and axially outwardly of the cutter body. A plurality of polygonal cutter inserts are positioned respectively in the recesses. The recesses have a depth of one third to two thirds of a thickness of the cutter insert. A plurality of clamp wedges respectively clamp the cutter inserts to the cutter body through the support members.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: August 18, 1987
    Assignee: Mitsubishi Kinzoku Kabushiki Kaisha
    Inventors: Hiroshi Shimomura, Tatsuo Arai
  • Patent number: 4684297
    Abstract: A milling cutter for cutting the contaminated surface of concrete and used at the time of repairing and dismantling nuclear facilities. The milling cutter is characterized in that guide grooves are provided on the outer surface of a body, with their edges slanted from both sides of the body toward the center thereof, and that cutter chips are located along the stepped edge of each of the guide grooves in such a manner that the cutter chips can be easily detached and that those located along the stepped edges of the adjacent grooves are symmetrical in relation to the center line of the body.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: August 4, 1987
    Assignees: Sato Kogyo Co., Ltd., Hitachi Carbide Tools Ltd.
    Inventors: Naoyoshi Funakawa, Hajime Demura, Nobuyuki Nagamori
  • Patent number: 4667713
    Abstract: The present invention is a knife assembly for a chipping canter or a mechanically similar device. In its basic form it comprises four parts: a knife holder, a knife, a knife retaining pull down block, and a tapered draw bolt to tighten the assembly. The knife holder is constructed to engage a conventional seat in a chipper head segment. It has an arcuate front surface to receive the knife element. The knife element has a rib on its rear surface which has a dovetail or T-shaped flange. The pull down block is similarly configured with a female dovetail or T-slot to grasp the rib flange on the back of the knife holder. A tapered bolt is threaded into the knife holder and passes through a similarly tapered hole in the pull down block. As the bolt is screwed into the knife holder, the pull down block and encompassed knife element are drawn to the rear where they are tightly frictionally held against the knife holder.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: May 26, 1987
    Assignee: Weyerhaeuser Company
    Inventor: James L. Wright
  • Patent number: 4658875
    Abstract: Improvements in standard planing knife holders for standard disposable double-edged planing knives which include spring means carried by the holders to engage the bottoms of related knife-receiving channels in related planing knife driving shafts to normally yieldingly urge the holders and their related knives radially outward in the channels and relative to related screw actuated clamping bars within said channels and engaging the holders and knives. An improvement comprises permanent magnets carried by the holders with south poles spaced from opposing rear surfaces of related channels and with north poles contacting and holding the knives assembled with the holders. The improvements also include secondary permanent magnets carried by the holders with south poles spaced from the knives and clamping bars and north poles contacting and holding the holders on said rear surfaces.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: April 21, 1987
    Inventor: Bosko Grabovac
  • Patent number: 4652182
    Abstract: The invention relates to a milling cutter having interchangeable cutter blades which are fixed in grooves in the milling cutter body by means of clamping elements. The cutter blades have integrally formed radial and axial support mountings, by which means a simple and precise mounting of the cutter blades is achieved. The seating surfaces made at the milling cutter body are made as simple, flat surfaces.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: March 24, 1987
    Assignee: Ledermann GmbH & Co.
    Inventor: Erwin Mellert
  • Patent number: 4629370
    Abstract: Disclosed is a sprocket cutter in which there is a cutter body having a plurality of pockets along its periphery and a plurality of wedge recesses facing the periphery within each pocket. There is an array of inserts disposed within each of the pockets, each of the inserts having a cutting portion and a plurality of wedges equal in number to the number of inserts and wedge recesses. Each of the wedges is interposed between each of the inserts and each of the wedge recesses so that, as each of the wedges is moved inwardly into its corresponding wedge recess, each of the inserts is securely clamped between its corresponding wedge and the pocket. Each of the inserts is positioned so that the cutting portion of each insert extends beyond the periphery of the cutter body. Each of the inserts cuts a segment of the sprocket contour as the cutter body rotates with adjacent segments of the sprocket contour being cut by inserts located in different pockets. There is also a method of assembling the sprocket cutter.
    Type: Grant
    Filed: April 19, 1984
    Date of Patent: December 16, 1986
    Assignee: Kennametal Inc.
    Inventors: Douglas E. Torgent, Robert N. Mitchell
  • Patent number: 4623284
    Abstract: A milling cutter comprising a shoe (12), which is secured to the cutter body (10) and carries a cutting insert (11). The shoe (12) is adjustable by means of an adjustment means (13) and clamped by means of clamping means (14,15,16). The adjustment means (13) is adapted to bridge an inner corner (26) on the shoe (12) and the clamping means (14,15,16) comprises a pin (15) which is displaceably arranged in the shoe (12) at the outer end thereof, said pin (15) being adapted to be forced against a supporting surface (28) on the cutter body (10) opposed to the supporting surface (22) on the shoe (12) by means of a clamping screw (16).
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: November 18, 1986
    Assignee: Seco Tools AB
    Inventor: Hermann A. Greiff
  • Patent number: 4621954
    Abstract: A face milling type gear cutting assembly including contiguous cutting tools positioned in a common slot with means for preserving clearance for chip removal between these tools. The cutting assembly also includes a tool clamping arrangement featuring a novel clamping block which is releasably attached to a screw element in situ.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: November 11, 1986
    Assignee: The Gleason Works
    Inventors: Richard L. Kitchen, Richard C. Blakesley
  • Patent number: 4614463
    Abstract: A cutter body has a plurality of detachable blades mounted in a cutter body plate which extends into a hub that is mounted on a power shaft. Each blade comprises an upper blade edge and a lower blade edge held in place by a block which is removably retained on the cutter body by means of setscrews. Accordingly, it is unnecssary to weld or braze any of the parts in place.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: September 30, 1986
    Inventor: Chesley P. Hughes
  • Patent number: 4610285
    Abstract: The present invention relates to a cutting tool with removable blades and which comprises a stack of discs (2) each having a cut (6) opened on its periphery, and a clamping device compressing the discs, the angular position of the discs relative to each other being such that, in service position, the cuts form peripheral longitudinal housings. Reversible blades (10), the cutting edge (11) of which is situated on a diameter longer than the external diameter of the discs, are fixed in a removable manner in the housings, each by a locking wedge (14) located in the housing parallel to the blade and locking the latter by jamming when the tool is driven in rotation.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: September 9, 1986
    Assignee: Samvaz S.A.
    Inventor: Charles Derivaz
  • Patent number: 4592680
    Abstract: A rotary cutter for holding replaceable cutting inserts includes a cylindrical bore having a generally radially-disposed axis which makes an acute angle with the insert cutting face, thus forming a wedge-shaped portion in the holder between the insert-supporting face and the axis of the bore. A cylindrical locking member is received in the bore. An insert-retaining locking screw threadedly engages the locking member. The wedge-shaped portion of the holder causes increased tension in the locking screw during rotation of the cutter, which insures insert retention at high rotational speeds.
    Type: Grant
    Filed: January 24, 1985
    Date of Patent: June 3, 1986
    Inventor: Harold W. Lindsay
  • Patent number: 4580929
    Abstract: The invention relates to a machining tool, especially a milling-cutter, in which each insert-holding cartridge (1) is fixed in a removable manner in a housing made in the body (2) of the tool. A blocking element accessible from the outside cooperates with the body of the tool and bears in service position against an inclined plane (6) of the back side of the cartridge, so as the pressure toward the bottom and forward according to the arrow F blocks the cartridge in its housing on three bearings respectively situated on the bottom (3), the back side (4) and the front side (5) of this housing. The cartridge further laterally bears against a fixed or adjustable stop.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: April 8, 1986
    Assignee: Stellram S.A.
    Inventor: Hermann Gehri
  • Patent number: 4575287
    Abstract: A milling cutter having a cutter body rotatable about its central axis with a peripheral wall on the cutter body and insert pockets and clamp recesses located in the peripheral wall. The insert pockets have locating surfaces for positioning an insert when placed in the pocket. There is also a clamp for releasably clamping an insert when the insert is placed in position in the pocket. The clamp freely assumes an orientation identical to that of the insert so that planar contact is made with the insert.
    Type: Grant
    Filed: January 13, 1983
    Date of Patent: March 11, 1986
    Assignee: Kennametal Inc.
    Inventors: James A. Oshnock, Robert A. Erickson
  • Patent number: 4566826
    Abstract: An apparatus for supporting a cutting insert is disclosed. A rotatable head includes at least one peripheral slot which has a generally flat bottom and a pair of parallel sides. The parallel sides of the slot are tilted relative to the bottom so that the bottom of the slot forms an acute corner with one side and an obtuse corner with the other side. An insert seat is provided which has a bottom and a back side which meet at an acute angle conformed to the acute corner of the slot. The seat has a front side with a recess to support the cutting insert in a general radial posture relative to the rotatable head. The seat is secured to the slot with the back side of the seat flush with the side of the slot forming the acute corner. The location of the bottom of the seat relative to the bottom of the slot is adjustable. A wedge is forced between the insert and the side of the slot forming the obtuse corner to confine the insert between the wedge and the seat.
    Type: Grant
    Filed: February 17, 1984
    Date of Patent: January 28, 1986
    Inventor: Lawrence C. Dickinson
  • Patent number: 4557525
    Abstract: A cutter bit assembly comprises a holder and a cutter bit. The holder is formed with a pocket into which the cutter bit can be inserted. The cutter bit is retained within the pocket by means of an arcuate wedge inserted into a tapered gap formed between respective curved support faces formed on the cutter bit and the holder.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: December 10, 1985
    Assignee: Gewerkschaft Eisenhutte Westfalia
    Inventors: Gerhard Merten, Oswald Breuer, Norbert Hesse, Bernd Steinkuhl
  • Patent number: 4519731
    Abstract: A milling cutter including a supporting body having a longitudinal axis and presenting a frontal face and a circumferential side. The supporting body is provided with a radial recess. A plurality of cutting plates are disposed along the circumferential side and arranged in rows each extending generally in the longitudinal direction of the supporting body. At least one of the cutting plates is a face cutting plate having a cutting edge for cutting at both the circumferential side and at the frontal face. The cutter includes a cassette having a quadrilateral cross section and disposed in the recess. The face cutting plate is fastened to the cassette, and at least one fastening element is provided for releasably tightening the cassette in the recess.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: May 28, 1985
    Assignee: Fried. Krupp Gesellschaft m.b.H.
    Inventors: Willi Jester, Heinrich Kruger
  • Patent number: 4493594
    Abstract: A milling cutter for clamped cutting inserts (12) which are held in position by means of a clamping means (14), which rests against the cutting insert (12) at a first contact surface (17) and against the cutter body (10) at a second contact surface (24). In order to obtain a large chip pocket by means of a clamping means (14) having short radial extent the clamping means is designed such that the distance between the first contact surface (17) and a supporting surface (21) for supporting the cutting insert is larger than the distance between the supporting surface (21) and the second contact surface (24).
    Type: Grant
    Filed: October 21, 1983
    Date of Patent: January 15, 1985
    Assignee: Santrade Ltd.
    Inventor: Minoru Okada
  • Patent number: 4487240
    Abstract: A blade holding arrangement for cutter spindles or cutter heads which are adapted to be equipped with reversible blades. The arrangement including radially adjustable blade holders in the form of drawn profile sections, with the blades adapted to be pressed against guide shoulders of the cutter spindles or cutter heads. The blade holders are provided with a reinforcing elevation or projection that slopes downward in a direction of the guide shoulders. A groove, extending in parallel to the reinforcing elevation or projection, is provided in the blade holder adjacent the reinforcing elevation or projection on a radially inner side of the blade holder.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: December 11, 1984
    Assignee: Eugen Lutz GmbH & Co Maschinenfabrik
    Inventor: Otto Bergler
  • Patent number: 4487532
    Abstract: A locking device for holding a blade inserted in an axial groove in a cutting body is disclosed. The blades are usually helical and require a locking device that gives line contact between the locking device and the blade since such blades are made of carbide material which is quite brittle and would be distorted and fractured if the blade was contacted over a wide area. The locking devices are frustoconical in shape and have a screw holding them positively in position. The screw has a left hand thread on one end and a right hand thread on the other so that when the screw is rotated in one direction it loosens the clamping device and when it is moved in the other direction it tightens it.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: December 11, 1984
    Inventor: Martin N. Hamilton
  • Patent number: 4484560
    Abstract: A diamond segmented saw blade having a steel center is provided with a plurality of sockets about the rim and a plurality of cutting tip supports having diamond impregnated tips. Each socket is provided with an upper surface inclined upwardly and inwardly and a tapered or wedge-shaped dovetail groove. Each support is provided with a depending tenon. The surfaces adjacent the tenon are inclined upwardly and inwardly complementary to the surfaces adjacent the socket. The tenon is similarly wedge-shaped to fit in the dovetail groove so that the support and socket are firmly interlocked to insure easy and free exchange of diamond impregnated tips.
    Type: Grant
    Filed: June 24, 1983
    Date of Patent: November 27, 1984
    Assignee: Asahi Diamond Industrial Co., Ltd.
    Inventor: Takesaburo Tanigawa
  • Patent number: 4478541
    Abstract: An arrangement for quick-mounting and--dismounting of a cutting tool 10. A projection 21 on the machine spindle is fitted into a spacing 33 in a nut element 30 in the cutting tool and by rotation of the nut element 30 axially outwards the projection 21 is forced against an inner wall 39 of the spacing 33, whereby forcing the cutting tool 10 against the machine spindle.
    Type: Grant
    Filed: October 19, 1982
    Date of Patent: October 23, 1984
    Assignee: Santrade Ltd.
    Inventors: Minoru Okada, Takeo Sone, Shigeru Sakamoto, Yuji Koizumi, Iwao Tsuda
  • Patent number: 4475425
    Abstract: A blade holding device is provided for use with a blade and a cylinder, the cylinder having a longitudinal recess defined in the periphery thereof parallel to the axis of the cylinder. First and second wedge members are fittable within the recess, each wedge member having an inner face and an outer face. A plurality of spring members is included, along with a resilient strip for holding the spring members in relative positions. The wedge members are insertable within the recess such that the resilient strip holding the spring members is disposed adjacent the outer face of the first wedge member. The blade is disposed between the resilient strip and a wall of the recess. Relative movement of the wedge members is performed by a bolt threadingly engaged with an end of the second wedge member and held in relative position with respect to the cylinder, whereby the blade is clamped between the first wedge member and the recess wall.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: October 9, 1984
    Assignee: Harris Graphics Corporation
    Inventors: Dineshchandra G. Punater, John L. Herman
  • Patent number: 4474512
    Abstract: A milling tool comprises a plurality of cutting bit holders mounted by clamps on the tool circumference. Each holder is mounted in a radial recess which is inclined with respect to the longitudinal axis of the tool. A pair of set screws are arranged for displacing each holder in a radial direction of the tool. Independently of such displacement, the bit holder is adjustable in an axial direction of the tool by means of an eccentric. The bit holder may also be displaced about an axis perpendicular to the plane of the cutter bit.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: October 2, 1984
    Assignee: Santrade Ltd.
    Inventors: Willi Lindlar, Guenter Wermeister
  • Patent number: 4456082
    Abstract: This invention relates to large diameter raise bore rock bits. The invention comprises a means in which extensions may be attached to the outer diameter of the body of the rock bit, thus providing a variable diameter raise bore rock bit. The extensions are mounted to the primary body of the bit such that compressive loads are imposed on the attachment means. These compressive loads are transmitted from the extensions of the body by designing the extension portions of the bit such that they interlock to the basic bit body. The mating surfaces of the attachment means transmit predominantly compressive loads acting substantially normal to the load bearing surfaces. The attachment means are further designed to increase the grip of the extended bit portions as increased loads are applied to the body of the rock bit.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: June 26, 1984
    Assignee: Smith International, Inc.
    Inventor: Simon J. Harrison
  • Patent number: 4456307
    Abstract: A cutter bit assembly comprises a holder and a cutter bit. The holder is formed with a pocket into which the cutter bit can be inserted. The cutter bit is retained within the pocket by means of an arcuate wedge inserted into a tapered gap formed between respective curved support faces formed on the cutter bit and the holder.
    Type: Grant
    Filed: June 25, 1982
    Date of Patent: June 26, 1984
    Assignee: Gewerkschaft Eisenhutte Westfalia
    Inventors: Gerhard Merten, Oswald Breuer, Norbert Hesse, Bernd Steinkuhl
  • Patent number: 4400117
    Abstract: A rotary milling cutter has a body with one or more insert seats on the body. A cutting insert is disposed in each seat and is locked in place by means of a pair of fasteners which are threaded into corresponding tapped holes in the cutter body adjacent the seat. Each insert contains a pair of spaced grooves on a surface of the insert adjacent the fastener. The axis of each fastener is disposed in the same plane as and at an acute angle to the axis of a corresponding groove. As each fastener is advanced into its threaded hole, a circular edge of the head of the fastener lodges in the corresponding groove exerting a locking force to lock the insert in place in its seat. The grooves have elliptically contoured cross sections conforming to the elliptical projections of the circular edges of the fastener heads when viewed axially of the grooves. There is also a counterbore at the near end of each threaded hole for receiving the head of the corresponding fastener.
    Type: Grant
    Filed: May 4, 1981
    Date of Patent: August 23, 1983
    Assignee: Milling Specialties, Inc.
    Inventor: Theo J. Smith
  • Patent number: 4386670
    Abstract: A boring head for reaming a pre-drilled hole in raise boring or for similar earth cutting operations comprising a plurality of roller cutters (13-22). For purposes of extending the radius of the boring head (10) in operation or decreasing its dimensions during transport one or several extension elements (36, 37) are provided for detachable attachment to the boring head (10) by means of a wedge connection (42).
    Type: Grant
    Filed: April 23, 1981
    Date of Patent: June 7, 1983
    Assignee: Santrade Ltd.
    Inventor: Gustav L. Westermark
  • Patent number: 4341493
    Abstract: A milling cutter includes an array of pockets each having radially extending side walls and a base wall from which radially projects an elongated locating rail. A safety wedge has one surface in engagement with one wall of the pocket and its opposed surface in engagement with one surface of a cutting insert. The latter includes a central hole through which extends a projection extending from the safety wedge. One edge of the cutting insert engages the locating rail, while the opposite surface of the cutting insert is engaged by a wedge surface of a wedge assembly which is connected to the body of the cutting tool, and is selectively operable for shifting of the wedge assembly into wedging engagement with the cutting insert. By this arrangement, the cutting insert is clamped intermediate the safety wedge and the wedge assembly, and the edge of the cutting insert bears against the locating rail.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: July 27, 1982
    Assignee: General Electric Company
    Inventor: Donald S. Erkfritz
  • Patent number: 4318647
    Abstract: A boring cutter which is adapted to be rotated about its central axis includes at least one insert pocket having opposed parallel leading and trailing walls, as well as a bottom wall. An insert seat of generally L-shaped configuration is provided, with the leading surface of the insert seat being in abutting relationship with the leading wall of the pocket. The opposed trailing surface of the insert seat includes both a leading and rear locating support surface adapted to receive an indexable cutting insert. A wedge is receivable between the rear surface of the cutting insert and the trailing wall of the pocket. The radial position of both the insert seat and the wedge, relative to the central axis of the boring cutter is adjustable. By this arrangement, the radial position of the cutting insert may be varied to thereby adjust the effective outer diameter of the boring cutter.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: March 9, 1982
    Assignee: General Electric Company
    Inventor: Donald S. Erkfritz
  • Patent number: 4309132
    Abstract: A face mill having individual, circumferentially spaced cutting inserts each individually adjustable by means of a wedging part.
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: January 5, 1982
    Inventors: Thomas Adamson, Armand J. Schmaltz
  • Patent number: 4303113
    Abstract: The disclosure relates to a tool consisting of a tool body and cutter bits which are each secured in a slot in the body. By means of a tension screw which engages with the end portion of the bit located most proximal the bottom of the slot, the bit is fixedly retained in the slot under the application of a torque, the bit engaging with the slot walls at, in particular, three points; namely a point on the chipping face of the bit above a clearance disposed between this face and the slot face adjacent the bottom of the slot, a point on the rear face of the bit adjacent the periphery of the tool body, and, finally, the bottom of the slot. The tension screw engages with a surface on the bit which is located beneath a plane at right angles to the longitudinal direction of the bit through the abutment point on the chipping face of the bit, the surface preferably making an angle of approximately 45.degree. with this plane.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: December 1, 1981
    Assignee: Maskinfabriken Waco AB
    Inventor: Bengt A. Andersson
  • Patent number: 4268194
    Abstract: Radial adjustment of cutter blades in a roughing hypoid gear cutter is effected by a tapered adjustment block. A differential screw engages threads in the block and in the cutter body to cause relative axial displacement. The taper on the adjustment block in cooperation with a tapered surface on the cutter body translates the axial displacement into a radial displacement of the upper surface of the adjustment block and the corresponding cutter blade. A pair of cap screws permit independent axial adjustment of each cutter blade. A one piece cutter body provides maximum simplicity and rigidity.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: May 19, 1981
    Assignee: Illinois Tool Works Inc.
    Inventors: Harry W. Bloink, Walter G. Huber
  • Patent number: 4264245
    Abstract: A holder or nest for pin-type replaceable cutting inserts has a back face and a front face parallel to the back face for supporting a pin-type replaceable cutting insert of the type having a circular aperture centrally disposed therein. A pin extends perpendicularly to the front face of the holder, on which pin the cutting insert is received. The holder comprises an extension having a face coplanar with the back face of the holder itself. The extension further comprises a threaded aperture to receive a screw which serves to clamp the holder and the cutting insert into a recess in the cutter body.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: April 28, 1981
    Inventor: Harold W. Lindsay
  • Patent number: 4257462
    Abstract: A tool fastening system for woodworking machines or the like wherein the tools or tool collars carry radially directed means for releasably securing the tools or collars to a drive shaft or axle in such a manner that the tools or collars may be positioned at any axial position along the axle regardless of the width of the tool or collar and without the use of spacers.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: March 24, 1981
    Inventor: Jaime M. Oller
  • Patent number: 4215955
    Abstract: An insert type end milling cutter and cutting insert for the same which facilitates metal removal. Each insert has a cutting edge which is defined by the intersection of a cutting face and a land area. The cutting face is disposed so as to have a neutral rake angle and the cutting edge itself lies in a single plane but has a generally sinusoidal configuration in a direction normal to the cutting face. The milling cutter includes a plurality of insert locating grooves which locate the inserts in a manner such that the cutting edges form straight helixes over at least a portion of the cutter length. The inserts may be reasonably retained in the locating grooves to facilitate ease of removal for repair or replacement purposes.
    Type: Grant
    Filed: October 11, 1978
    Date of Patent: August 5, 1980
    Assignee: TRW Inc.
    Inventor: Charles R. Lillie
  • Patent number: 4204787
    Abstract: A milling cutter is disclosed that comprises a rotatable adapter plate having a central protrusion on one side of the plate. A cutter ring, having recesses for mounting inserts therein, is provided with bayonet slots and a central opening so it can be fitted with and bolted to the adapter plate. The central protrusion is tapered and a conical grind is put on one of the mating surfaces between the adapter and the cutter plate to aid in disassembly after use of the milling cutter.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: May 27, 1980
    Assignee: Kennametal Inc.
    Inventors: David M. McCray, Gerald D. Murray
  • Patent number: 4193719
    Abstract: An improved cutting tool has general utility, but is particularly adapted for use as a profile-style cutter, or as a form-relieved cutter. The cutting tool includes a body provided with a plurality of slots spaced circumferentially thereabout, a blade arranged in each slot, and a wedge inserted axially into each slot to securely mount the blade on the body. Each blade is provided with a pair of axially-spaced locating shoulders extending rearwardly from its trailing surface, and adapted to embrace the side faces of the body to prevent axial movement of the blade relative to the body. The wedge has a retaining lug extending forwardly beyond its leading surface, and adapted to be slidably inserted into a retaining groove provided in the body. The wedges and blades have cooperative compound tapered surfaces which are adapted to engage one another to cause the blade to seat against the slot base and trailing surfaces, and to prevent radial movement of the blade relative to the body.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: March 18, 1980
    Assignee: Niagara Cutter Inc.
    Inventor: Ronald R. Oaks
  • Patent number: 4181456
    Abstract: An improved cutting tool has a blade removably secured to a movable body. The body is provided with an elongated slot extending into the body from its outer surface and arranged transversely of the direction of tool movement. This slot is bounded by spaced leading and trailing wall surfaces arranged to face one another and separated by an intermediate base surface. A blade is preferably arranged in the slot such that its leading surface is in area contact with the body leading wall surface. The trailing surface of the blade is provided with a plurality of serrations. A wedge, having a plurality of serrations on its leading surface, is insertable into the slot between the blade and the body trailing wall surface. The serrations on the blade and wedge mesh and interlock with one another, and permit the blade to be incrementally positioned relative to the wedge. A tongue extending outwardly from the wedge trailing surface is insertable into a cooperative groove recessed in the body trailing wall surface.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: January 1, 1980
    Assignee: Niagara Cutter Inc.
    Inventor: Ronald R. Oaks
  • Patent number: 4164380
    Abstract: A milling cutter with an infinite adjustment for face run out of the cutting edges in which each cutting edge may be held within 1/10,000 of an inch or less of a common plane. For numerically controlled machines the common plane may be located a fixed distance from the back of the cutter body. Another feature is a positive stop on the wedge which guarantees that once adjusted each insert will remain in adjusted position.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: August 14, 1979
    Assignee: Greenleaf Corporation
    Inventor: Robert W. Peters
  • Patent number: 4162770
    Abstract: A breaker tooth member for apparatus for the reduction of solid material such as wood, plastics, metal and the like comprises a metal head having an integral projecting mounting shank having an enlarged portion adjacent the head adapted to fit snugly in an enlarged mounting bore portion of a support ring, the head being formed opposite the shank with a recess having a flat back face intersecting a ledge defining a locking formation, and an integral harder wear resistant metal sharp edged element is mounted in the recess flush against the back face, that element being correspondingly formed along one edge to interlock with said ledge, and the element is fixed on the head by a plurality of pins having tight friction fit in aligned bores in the head and the element.
    Type: Grant
    Filed: December 9, 1977
    Date of Patent: July 31, 1979
    Assignee: Montgomery Industries International, Inc.
    Inventor: Herbert H. Lewis
  • Patent number: 4125342
    Abstract: The rotating cutter head of a reamer is formed with a recess, open in a radially outward direction and one circumferential direction relative to the axis of rotation, and a blade is retained in the recess between opposite, radially extending faces of the head and of a clamping shoe that may be adjusted inward of the recess. Two face portions of the blade are engaged by the respective faces of the head and shoe in area contact in planes which converge in a radially outward direction at a small acute angle to prevent movement of the blade from an initial, radially adjusted position under cutting stress.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: November 14, 1978
    Assignee: MAPAL Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventor: Dieter Kress
  • Patent number: 4116579
    Abstract: An end mill tool holder body and a tool suitable for use in a boring mill or any other metal-cutting machine. The tool has a round body with shank to suit the machine tool and a flat, laterally-disposed surface at one end of the body terminating in a shoulder. An axial bore extends through the body and a draw bar in the bore has a pin which extends through an opening in a cutting insert and a nut on the other end of the draw bar clamps the cutting insert against the shoulder, holding it rigidly in position for milling or boring.The inserts are of the throw-away type and are made of precision dimension so that the body and cutting insert can be used in a computerized operation.
    Type: Grant
    Filed: August 25, 1976
    Date of Patent: September 26, 1978
    Inventor: Martin Norman Hamilton
  • Patent number: 4082127
    Abstract: A chipper comprises a rotor with a plurality of knives adapted to slab off the side of a log so that the first saw cut following the chipper removes a usable board. In order to make usable pulp chips, the chipper knives are of bent configuration each having a grain cutting portion which cuts across the grain and a planing portion which cuts parallel with the grain to leave a smooth board surface on the log as it is moved lengthwise past the chipper on a saw carriage. Each knife is clamped rigidly in working position by a cambered clamp plate which is pivoted into clamped position in a manner causing it to flatten against substantially the whole area of the knife. A backing bar and wedge assembly provides fine adjustment for the knife.
    Type: Grant
    Filed: April 22, 1977
    Date of Patent: April 4, 1978
    Inventor: Frederick L. B. Miller
  • Patent number: 4078868
    Abstract: A cutting insert is disposed in a pocket formed in a cutter body and having a side wall and an angularly related bottom wall. A first wedge engages one face of the insert and includes a pin which extends into a hole in the insert. A second wedge engages the first wedge and, when the second wedge is shifted inwardly, the first wedge clamps a face of the insert against the side wall of the pocket while the pin clamps the inner edge portion of the insert against the bottom wall of the pocket.
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: March 14, 1978
    Assignee: The Ingersoll Milling Machine Company
    Inventor: Donald S. Erkfritz
  • Patent number: 4061076
    Abstract: A milling tool having multiple parts to facilitate tool change in which detachable metal cutting edges are mounted on an annular ring supported from an adapter mounted on the milling machine. The adapter includes a support plate for supporting the cutting ring and a pilot member which is biased against the cutting ring to insure that it is centered relative to the axis of rotation.
    Type: Grant
    Filed: July 22, 1976
    Date of Patent: December 6, 1977
    Assignee: Indexomatic, Inc.
    Inventor: Donald A. Robertson
  • Patent number: 4050129
    Abstract: A milling cutter has a cutter body, a plurality of stops received in the cutter body, an adjusting device for separately axially displacing each stop, a cutter blade received in each stop and a wedge member associated with each stop for tightening each cutter blade to the respective stop. The adjusting device comprises a projection which is attached to and extends from each stop and which is received in a recess provided in the cutter body, at least two axially oriented clamping faces which form part of each projection and which are inclined with respect to one another and set screws cooperating with each clamping face. Each set screw is supported in the cutter body in a substantially radial orientation with respect to the axis of the cutter body. Each clamping face is obliquely disposed with respect to the orientation of the associated set screw for effecting an axial shift of the stop upon tightening the respective set screw.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: September 27, 1977
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventors: Willi Jester, Hans Tack