Gang Patents (Class 407/31)
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Patent number: 4674923Abstract: A tool for use in a groove mill to simultaneously form spaced grooves in the interior surface of a bore with the tool including a shank and a pair of heads mounted thereon in spaced relation and in a detachable, non-rotative manner. Each head includes a plurality of insert pockets and inserts secured therein by screw threaded retainers and notches in one head aligned with the screw headed retainers for the inserts in the opposite head to enable indexing of the inserts without disassembly of the heads.Type: GrantFiled: August 9, 1985Date of Patent: June 23, 1987Assignee: Ratemaker Tools, Inc.Inventors: Francis J. Ogilvie, Nathan J. Harshman
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Patent number: 4641562Abstract: The present invention relates to a circular saw blade comprising a first annular saw blade having a plurality of teeth projecting radially from the periphery thereof and a second circular saw blade having a plurality of teeth projecting radially from the periphery thereof. The first blade has a greater diameter and a smaller thickness than the second blade and the teeth on the first blade are angularly set so as to partially extend into the cutting plane of the second blade. The blades are mounted coaxially adjacent to one another such that when used to cut through a workpiece, the first blade makes a fast rough cut and the second blade follows partially within the path of the first blade and provides a smooth, finished cut.Type: GrantFiled: August 16, 1985Date of Patent: February 10, 1987Assignee: Bremen Associates IncorporatedInventor: William Clarke
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Patent number: 4632609Abstract: To achieve reliable fastening of a toothed cutter carrier on the toothed bearing surface of a tool body, and to achieve favorable force ratios, in a rotary cutting tool, in particular a drilling head, the tooth formation of the bearing surface is constructed in a sawtooth shape with steep tooth flanks and inclined tooth flanks, the steep tooth flanks being disposed substantially on that side of the teeth which is orientated towards the cutting element of the cutter carrier. The tooth formation on the cutter carrier is constructed so that it is substantially similar to the tooth formation of the bearing surface for interengagement therewith.Type: GrantFiled: December 20, 1984Date of Patent: December 30, 1986Assignee: J. Kuhn GmbH & Co. Prazisionswerkzeug K.G.Inventor: Frank Johne
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Patent number: 4350308Abstract: A shredder structure, components, and sub-combinations thereof, useful for shearing, shredding, and/or chopping a variety of materials such as municipal and industrial solid waste products, vehicle tires, and other materials desired to be comminuted. The hopper of the structure is preferably hinged to provide easy access to the made-up shaft. The shaft carries a series of rotating bladeholders keyed to the shaft and provided with radial protrusions and contiguous slots accommodating fitted-blade placement. The rotating bladeholders are spaced apart by spacers which serve not only to mutually space the rotating bladeholders, but also to support the sides of the rotating blades so as to form with the bladeholder slot pockets or seats for such blades. Particular support structure is used for the stationary blade employed, with which the individual rotating blades on each bladeholder co-act.Type: GrantFiled: April 11, 1980Date of Patent: September 21, 1982Assignee: Garbalizer Corp. of AmericaInventor: John C. Brewer
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Patent number: 4290718Abstract: A tool for bevelling and deburring gears comprising a deburring tool having profiled teeth which are straight with a taper decreasing from the periphery towards the center and a pair of deburring discs operatively connected to the toothed member.Type: GrantFiled: April 24, 1978Date of Patent: September 22, 1981Assignee: Samputensili S.p.A.Inventor: Carlo Occhialini
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Patent number: 4263949Abstract: Cutter head especially for a canter-chipper or chipper-edger comprising a body mounted on a shaft of rotation and cutting knives fastened on the body. The cutting knives form parallel cutting paths. The cutting knives in the cutting paths next to the log having a cutting width of about 8-25% of the total cutting width of the cutter head are mounted on an easily removable ring facilitating the replacement of these swiftly wearing cutting knives.Type: GrantFiled: November 14, 1978Date of Patent: April 28, 1981Inventor: Eero M. Kivimaa
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Patent number: 4257724Abstract: A milling tool for machining cylindrical sections of crankshafts comprises a rotatable tool drum adapted to be mounted so that it surrounds the workpiece and to be driven and which at one end carries an internally cutting, annular primary cutter head and adjacent thereto is formed in its shell with apertures for the removal of chips. An internally cutting, annular supplemental cutter head has axially projecting claws and is detachably but rigidly secured to the primary cutter head and is axially supported against the latter by the claws. In such tool, a satisfactory removal of chips is ensured, and the supplemental cutter head can be simply and quickly removed to convert the multiple cutter tool to a single cutter tool.Type: GrantFiled: April 6, 1979Date of Patent: March 24, 1981Assignee: GFM Gesellschaft fuer Fertigungstechnik und Maschinenbau AktiengesellschaftInventors: Gottfried Blaimschein, Otto Marzy
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Patent number: 4244248Abstract: The invention relates to a method and an apparatus for setting up tools, work pieces and similar (11, 12, 19) on a rotatable spindle (10) by means of a clamp bushing comprising a double walled sleeve (2, 3) which is closed at both ends and which has at one end a fixed radially outwards directed collar (5) and at the opposite end means (6-9) for axially securing the tools or similar (11, 12, 19) on the clamp bushing, and in which the bushing is formed with means (16, 17) for providing a pressure in a recess (4) formed between the outer wall (2) and the inner wall (3) of the bushing and for releasing the pressure from said recess.Type: GrantFiled: December 20, 1978Date of Patent: January 13, 1981Assignee: Forenade FabriksverkenInventors: Lars Adell, Kent Mansson
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Patent number: 4242020Abstract: The present gang cutter for crankshaft milling machines comprises a plurality of disk cutters spaced from one another on a common, rotational axis by spacers which may be bearings. The gang cutter is divided into a plurality of partial units corresponding in number to the number of disk cutters. Each unit comprises a disk cutter and a center drum member. Adjacent units are operatively connected to each other whereby an adjustment disk may be inserted between adjacent units. A certain number of drum members corresponding to the number of bearings is constructed as bearing rings.Type: GrantFiled: August 6, 1979Date of Patent: December 30, 1980Assignee: Gebrueder Heller, Maschinenfabrik GmbHInventor: Karlheinz Schmid
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Patent number: 4219291Abstract: A rotary cutter and method of making same having a plurality of wear resistant material tipped helical cutting teeth therealong and comprising a plurality of cutter discs removably mounted in stacked relationship on a mandrel. Each disc comprises a circular member having a plurality of circumferentially spaced cutting teeth extending therearound and wherein each cutting tooth incorporates a hard, wear resistant insert having a helical rake facet and a helical relief facet defining the cutting edge which is in the form of a true geometrical helix. Coacting means are provided on the mandrel and each disc for rotationally positioning and aligning the discs such that the helical cutting edges thereon define in combination a substantially continuous geometrically true helical cutting edge extending the entire length of the cutter.Type: GrantFiled: March 14, 1979Date of Patent: August 26, 1980Inventor: James A. Hoeh
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Patent number: 4218159Abstract: The body of a gear hob consists of a plurality of adjacent disc-shaped segments. A helix of successive cutting teeth extends around the body and is formed by the adjoining peripheries of the segments. First and second metal cutter plates are replaceably mounted on the teeth flanks. The first cutter plate is mounted at the top of a respective tooth flank and the second cutter plate is mounted on the opposite flank. The first and second cutters alternate along the helix at each side of the teeth and their cutting paths overlap.Type: GrantFiled: April 10, 1979Date of Patent: August 19, 1980Assignee: Sack GmbHInventor: Hans Langen
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Patent number: 4172682Abstract: The present invention relates to rotary cutting tools and can find most utility when applied for abrading the cylindrical surfaces of small-sized blanks. The tool comprises a number of the gangs of elastic cutting elements made as equal-length wire segments held together with one of their ends in a close proximity to which said cutting elements are forced to one another with their side surface, while the other (vacant) ends of the cutting elements establish the tool cutting surface featuring a factor of its filling with the butt ends of the cutting elements lying within 0.1 and 0.99. Each of the gangs of cutting elements (as viewed in a longitudinal section thereof) is essentially two opposite trapezia spaced equidistantly from the tool axis of rotation and facing with their greater bases said axis, a feature that adds much to the cutting capacity of the herein-proposed tool.Type: GrantFiled: May 24, 1978Date of Patent: October 30, 1979Inventor: Viktor S. Salukvadze
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Patent number: 4171926Abstract: A cutter for edging plastic lenses to desired finished shapes and sizes including a main supporting wheel having an effective cutting edge formed of a multiplicity of circumferentially spaced replaceable cutting blades for clean chip clearance and ready accessibilty to individual removal sharpening and/or replacement as needed.Type: GrantFiled: April 21, 1978Date of Patent: October 23, 1979Assignee: American Optical CorporationInventor: Robert J. Dusza
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Patent number: 4150912Abstract: A twin blade mounting and tensioning apparatus is disclosed wherein twin inside diameter cutting blades for sawing crystalline rod materials are mounted with annular clamping-tensioning members which clamp the twin blades between the members with the clamped twin blades having an outer annular shim and an inner annular shim located therebetween in a spaced apart relationship defining an annular fluid expansion chamber, the annular clamping-tensioning members having recessed annular chambers in circumferential alignment with and located axially outward from said expansion chamber, the expansion chamber separated from the recessed chambers by the twin blade walls which are flexible and deformable within said recessed chambers through the action of pressurized fluid means.Type: GrantFiled: January 23, 1978Date of Patent: April 24, 1979Assignee: Monsanto CompanyInventors: Henry W. Gutsche, Thomas L. Bever, John T. Hepperman
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Patent number: 4147193Abstract: A cutter head the entire cutting width of which is divided into a few parallel cutting strips defined by respective sets of cutting knives. The diameters of the cutting circles of the knives of the different sets increase stepwise in the direction away from the log. The angle of inclinaton of the main cutting edge of the knives in relation to the axis rotation of the cutter head is large in the case of the knives defining the cutting strips placed closest to the log and small in the case of the knives defining the cutting strips placed more distant from the log.Type: GrantFiled: July 20, 1977Date of Patent: April 3, 1979Inventor: Eero M. Kivimaa
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Patent number: 4137956Abstract: A wood incisor for perforating the surfaces of a rectangularly cross-sectioned elongate board preparatory to preservative treatment is comprised of sets of paired horizontal and vertical drums arranged in a manner to provide a rectangular passageway of adjustable height and width for passing various sized boards, with each drum having a plurality of outwardly protruding cutting teeth. Each set of drums includes a fixed drum which is driven, and an idler drum which is slideable with respect to its associated fixed drum by actuation of positioning hydraulic cylinders to provide the adjustability of the passageway therebetween. Each of the positioning hydraulic cylinders is joined end-to-end with a cushioning hydraulic cylinder which is connected hydraulically to an accumulator tank containing pressurized hydraulic fluid and air. Thus the position of each idler drum relative to its associated fixed drum is responsive to the lateral force imparted to that set of drums by the board passing therebetween.Type: GrantFiled: June 27, 1977Date of Patent: February 6, 1979Inventor: Lloyd H. Toberg
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Patent number: 4110055Abstract: A carrying drum has an end face and is adapted to be rotatably mounted and to be rotationaly driven. An inserted-tooth cutter comprises an adapter ring flanged to said end face and provided with at least two retainers, which are axially spaced from each other and from said end face, and with radial through openings between adjacent ones of said retainers and between said retainers and said end face. Said inserted-tooth cutter further comprises at least two axially spaced apart, coaxial toothholders, which are adapted to surround said workpiece and are secured to respective ones of said retainers and carry teeth having radially inwardly facing cutting edges.Type: GrantFiled: July 14, 1977Date of Patent: August 29, 1978Assignee: GFM Gesellschaft fur Fertigungstechnik und Maschinenbau AktiengesellschaftInventors: Gottfried Blaimschein, Otto Marzy
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Patent number: 4103588Abstract: The present milling tool for crankshafts is equipped with an electric hea to assure uniform tool temperatures throughout its operation and to thereby avoid tolerance variations in the milled workpiece. The present milling machine is equipped with contact elements for supplying an electric current to the heater in the milling tool proper.Type: GrantFiled: June 23, 1977Date of Patent: August 1, 1978Assignee: Gebrueder Heller, Maschinenfabrik Gesellschaft mit beschraenkter HaftungInventor: Karlheinz Schmid
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Patent number: 4070130Abstract: A rotary cutting tool used successfully for machining metal articles, metallic strips, round bars and pipes including descaling, derusting, grinding and polishing. The tool has an arbor with sets of cutting elements in the form of pieces of wire which are compressed and fixed to one another at one end. Secured to the fixed ends across the width of each set there are strips resting on the arbor and fastened to the latter. The free other ends of the cutting elements form the cutting surface of the tool. This construction of the tool allows its use for machining the surfaces of articles of an unlimited width.Type: GrantFiled: August 4, 1976Date of Patent: January 24, 1978Inventor: Viktor Samsonovich Salukvadze
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Patent number: 4068688Abstract: A stacked disc cutter assembly for producing finger joints including a plurality of discs, each of which has a plurality of cutter teeth secured to and projecting radially outwardly therefrom. The discs are of substantially similar outer diameter and when assembled and secured together in side-by-side, contiguous, concentric relationship they form a solid cylindrical core for the assembly. The cutter teeth projecting radially outwardly from the discs and so arranged on the discs that they are spaced apart both axially and circumferentially of the cutter assembly. SUBACKGROUND AND SUMMARY OF THE INVENTIONThis invention relates to a stacked disc cutter assembly for producing finger joint cuts in material, and more particularly to such a stacked disc finger joint cutter assembly wherein cutter teeth thereon are spaced apart both axially and circumferentially about the assembly.In the past, various types of cutter devices have been designed for producing finger joints in material such as wood.Type: GrantFiled: June 2, 1975Date of Patent: January 17, 1978Assignee: Industrial Carbide Tooling IncorporatedInventor: George E. Benson
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Patent number: 4068558Abstract: A device for deburring or chamfering the axial edges of teeth on a workpiece. The device is composed of a guide disk having a pair of cutting disks on the axially facing sides thereof. The cutting disks each have teeth thereon as does the guide disk. The cutting disks are provided with cutting surfaces which engage the axial edges of the teeth of a workpiece to provide a chamfer therein. Structure is also provided for adjusting the cutting disks relative to the guide disk.Type: GrantFiled: July 14, 1976Date of Patent: January 17, 1978Assignee: Carl Hurth Maschinen- und ZahnradfabrikInventor: Herbert Loos
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Patent number: 4055204Abstract: An adjustable wobble dado assembly having a plate-like circular blade, a pair of inner plate members fixedly mounted on either side of the blade having generally parallel outer surfaces and complementary inner surfaces for holding the blade at an inclined position relative to the outer surfaces, and a pair of interconnected outer plate members on either side of the inner plate members having parallel outer surfaces and complementary inner surfaces inclined relative to the outer surfaces and bearing rotatably against the inner plate members. Each inner plate member has an inwardly tapering central aperture for rotatably receiving a respective cylindrical hub of an outer plate member. Each cylindrical hub extends along an axis perpendicular to the outer surface, rather than the inclined inner surface, of the outer plate member, such axis also being coincident with the axis of an arbor bore extending through the hub.Type: GrantFiled: November 22, 1976Date of Patent: October 25, 1977Assignee: Lifetime Carbide CompanyInventors: Fred G. Gunzner, Dale Edwards, John A. Lanning