Patents Examined by Jorji M. Griffin
  • Patent number: 4494396
    Abstract: The present invention considerably improves the rolling mill in the flatness control function, by arranging either of a pair of upper and lower work rolls as a small-diameter roll, offsetting the small-diameter work roll by a required distance in the rolling direction, providing an intermediate roll between the small-diameter work roll and a backup roll, letting a vertical bending force act on the upper and lower work rolls and the intermediate roll, and letting a horizontal bending force act on the small-diameter work roll.
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: January 22, 1985
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Toshio Iwanami, Hajime Watanabe
  • Patent number: 4494588
    Abstract: A lathe for cutting a spiral strip of veneer from the surface of a log includes motor-driven mechanisms for adjusting the knife blade pitch angle and edge height, and for moving a pressure head relative to the knife to adjust the vertical gap and horizontal gap between the knife edge and the roller bar, and provides sensors for determining the actual positions of movable elements of the lathe, thus enabling computer-controlled adjustment of the movable elements of the lathe during lathe operation. A knife clamp of the lathe includes a plurality of separate clamp segments for pressing against different portions of a knife bar to hold it firmly, resisting deformation and rocking of the knife bar. Fluid-pressure-biased bearings eliminate looseness between relatively movable parts of the lathe, reducing the amount of variation of thickness in veneer produced using the lathe. Veneer thickness is controlled by monitoring cumulative movement of the lathe spindles and the main feed carriage.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: January 22, 1985
    Assignee: Sun Studs, Inc.
    Inventors: Larry R. Berry, Anton S. Richert
  • Patent number: 4493351
    Abstract: Apparatus for copy-machining a workpiece includes a disk miller assembly acting as a shaping tool and a grinding belt extending between return pulleys and acting as a surface finishing tool assembly, both of the tool assemblies are mounted on pivot arms for pivotal displacement about pivot axes, carried on a common feed device and adapted to be advanced along a workpiece mounted in a clamping device under the control of a scanner scanning a model, the disk miller rotating about an axis extending parallel to the rotary axis of the workpiece as defined by the clamping device. The grinding belt is driven to rotate adjacent the disk miller in a plane extending parallel to the plane of rotation thereof. The pivot axis of the pivot arm associated with the grinding belt assembly is axially aligned with the pivot axis of the disk miller assembly.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: January 15, 1985
    Assignee: MZW Maschinenfabrik Zuckermann Pachtgesellschaft mbH
    Inventor: Erich Schmidt
  • Patent number: 4491163
    Abstract: There is provided a felling head for attachment to a boom. The felling head includes an upper part and a lower part. The upper part has at least one brace portion and a grapple adapted to clasp a tree trunk against the brace portion. The lower part includes a circular saw blade mounted in a plane perpendicular to the longitudinal axis of a tree clasped between the brace portion and the grapple. The leading edge of the circular saw blade projects beyond the location of the brace portion by a distance at least as great as the diameter of a tree being felled so that such tree can be cut through by the saw blade before the tree comes into contact with any other part of the felling head, including the brace portion.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: January 1, 1985
    Assignee: Koehring Canada Limited
    Inventor: John Kurelek
  • Patent number: 4488421
    Abstract: A mandrel-carrier head for fixed-mandrel continuous rolling mill has a horizontal hook portion engageable with the tail of the mandrel. This portion has a U-section in the direction of the rolling axis. One of the limbs or a part thereof is movable towards and away from the other limb, so as to lock the tail of the mandrel previously positioned between the limbs.
    Type: Grant
    Filed: June 15, 1983
    Date of Patent: December 18, 1984
    Assignee: Innse Innocenti Santeustacchio S.p.A.
    Inventors: Giorgio Quecchia, Filippo Cattaneo
  • Patent number: 4487050
    Abstract: In a rolling mill in which at least one of paired work rolls for rolling metal strips is formed to have a small diameter and is backed up by a pair of first intermediate rolls which in turn are backed up either directly by a plurality of backup rolls or indirectly by a plurality of backup rolls through second intermediate rolls, the rolling mill of the present invention is characterized in that a bearing case containing bearings is provided to each end of the small diameter work roll and to each end of the pair of first intermediate rolls supporting the small diameter work roll so that these rolls are supported on the bearing cases through bearings, and hydraulic cylinders are provided for applying independent roll bending forces to the work roll bearing cases and the intermediate roll bearing cases.
    Type: Grant
    Filed: May 13, 1982
    Date of Patent: December 11, 1984
    Assignees: Mitsubishi Jokogyo Kabushiki Kaisha, Nippon Steel Corporation
    Inventors: Tetsuo Kajiwara, Kazuyoshi Hashimoto, Takao Kawanami, Koichi Mori
  • Patent number: 4487049
    Abstract: A working mandrel is composed of several similar sections, each having a working surface on the body thereof. The leading end of each section has a socket, while the trailing one has a projecting portion of a similar configuration for jointing the sections during the rolling step. Rolling is effected on the working mandrel assembled in a head-to-tail fashion and after the rolling cycle is terminated the leading section is transferred to the mandrel cooling and lubricating line and then, cooled and suitably lubricated, is positioned in front of the first roll stand, while the other sections remain between the first and the last roll stands. Put into position in front of the multistand mill may be a previously prepared section instead of that transferred to the mandrel cooling and lubricating line.
    Type: Grant
    Filed: August 4, 1981
    Date of Patent: December 11, 1984
    Assignee: Dnepropetrovsky Metallurgichesky Institut
    Inventors: Valentin N. Danchenko, Alexandr A. Zayats, Ivan N. Potapov, Petr M. Finagin, Sergei P. Kutsenko
  • Patent number: 4485649
    Abstract: A rolling mill having hydraulic cylinders in each housing to adjust the roll gap is provided with a control system whereby a workpiece is kept on a central path through the mill and is prevented from wandering from this path towards one of the mill housings. The system includes a pair of circuits and a connector between the circuits for averaging the load on each housing and controlling the roll gap in accordance with a certain mill stretch factor. The difference between the loads is also obtained and a signal, in accordance with a different stretch factor, is applied to the housing with the heaviest load and a signal of the same magnitude, but opposite polarity, is applied to the other housing.
    Type: Grant
    Filed: October 15, 1982
    Date of Patent: December 4, 1984
    Assignee: Davy McKee (Sheffield) Limited
    Inventors: Stephen Martin, Roy Clegg
  • Patent number: 4483378
    Abstract: A feeding device used for a wood working machine includes two roller assemblies respectively mounted to two roller supports which can be controlled to turn about horizontal axes and which in turn is supported by an upper portion mounted to a cantilever arm of a column. Each of roller assemblies includes at least two rows of rollers respectively mounted on at least two horizontal axes. By adjusting roller supports, these rollers can roll on a curve surface.
    Type: Grant
    Filed: April 12, 1983
    Date of Patent: November 20, 1984
    Inventors: James Chang, Jen-Wen Chang, Kai-Jou Chang, Horng-Tswen Chang
  • Patent number: 4483373
    Abstract: A harness wiring universal formboard of modular construction utilizes modules which define a grid of forming pin stations each of which has a pin which is selectably retracted or in the extended mode for use in the wiring harness pattern. The single board can be used with any pattern, and the particular pin pattern desired is achieved by applying a pattern sheet across the front of the board with holes punched at the locations where the pins in the desired pin pattern should be, and then with the pattern in place rotating the board upside down so that gravity pulls the pins through holes in the formboard at those locations permitted by the pattern achieved. The extended pins are then locked into place and the module or modules righted to the appropriate angle and height most convenient for the harness maker.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: November 20, 1984
    Inventor: John W. Tarbox
  • Patent number: 4483169
    Abstract: The invention concerns a double roller guide for rolling mills, consisting of at least two guide rollers positioned in series in the direction of rolling and mounted on associated roller carriers positioned so that they can pivot and be adjusted according to the position of the guide rollers. In order to make it possible to position the guide rollers in the same direction and in parallel, the roller carriers are two-armed pivoted levers at the one end of which the guide roller is mounted and the other end of which is supported on an adjustable stop, whereby the transmission ratios of both roller carriers are equal and the end of one roller carrier is supported on the other roller carrier at a distance from its pivoting axis.
    Type: Grant
    Filed: March 22, 1983
    Date of Patent: November 20, 1984
    Assignee: Centrol-Morgardshammer GmbH
    Inventors: Alfred Jahr, Wilhelm Svihel
  • Patent number: 4479374
    Abstract: A rolling stand includes a frame and a pair of working rolls mounted on the frame centered on and rotatable about respective parallel axes and defining a nip so that a strip can pass in each of a succession of passes forming a single run through the nip so that with each pass the thickness and width of the strip are reduced. The ends of the working rolls project laterally beyond the longitudinal edges of the strip. Respective backing rolls mounted on the frame extending generally the full length of the working rolls are braced toward the nip against the working rolls to urge same against the strip. Tools displaceably mounted on the frame reduce the diameters of the projecting ends of the working rolls several times after respective passes during a single run so that the working rolls only contact the respective backing rolls along a diatance equal generally to the workpiece width.
    Type: Grant
    Filed: February 23, 1983
    Date of Patent: October 30, 1984
    Assignee: SMS Schloemann-Siemag AG
    Inventors: Hugo Feldmann, Karl Illert, Willi Benz, Heinrich Bohnenkamp
  • Patent number: 4478263
    Abstract: A mobile self-contained wood processing machine to be used for the processing of logs into specific lengths and then splitting the lengths into individual pieces suitable for use as firewood or the like. The individual pieces are retained in a unit bin until a desired quantity has been processed. Once the desired quantity is processed the unit bin is operated to release the stored pieces to a handling cart or to packaging.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: October 23, 1984
    Inventor: James L. Johnston
  • Patent number: 4478062
    Abstract: A system is provided for measuring the shape of sheet stock within a rolling mill. The system includes a shape sensing roll including a plurality of roll segments. Each segment includes a magnetic bearing, the stators thereof being mounted to a stationary shaft. The bearing rotors are mounted in a steel ring which contacts the strip to be measured. Each roll segment is suspended by a magnetic bearing which is free to react to the loading placed thereon, independent of adjacent segments. Since the magnetic bearing system automatically regulates the power supplied to the electromagnets of the respective bearings to maintain their concentric positions, changes to the power inputs are a direct indication of the magnitude of the loading thereon.
    Type: Grant
    Filed: September 1, 1982
    Date of Patent: October 23, 1984
    Assignee: E. W. Bliss Company, Inc.
    Inventor: Paul E. Huzyak
  • Patent number: 4478264
    Abstract: A mortising machine adapted for connection to a conventional electric motor includes a frame having rotatably mounted therein a helically-grooved shaft on which is threadedly mounted a router assembly carrying a rotatable router bit for reciprocation along the grooved shaft upon its rotation. The shaft of the router bit and the grooved shaft are both driven from a drive shaft journaled in the frame by a drive connection arrangement of pulleys and timing belts to simultaneously rotate and reciprocate the router bit for cutting a linear mortised slot. For driving the shaft of the router bit, the drive arrangement includes a pulley on each of the drive shaft and router bit shaft, a traveling idler pulley mounted on an arm pivoted on the router assembly, and a timing belt trained about the pulleys.
    Type: Grant
    Filed: August 11, 1982
    Date of Patent: October 23, 1984
    Assignee: McKnight-Miller Company, Inc.
    Inventors: Claud T. Miller, Larry W. Miller
  • Patent number: 4472958
    Abstract: A rolling mill or apparatus comprises position detectors or sensors which are disposed upon movable roll shells or movable solid rolls possessing, for instance, hydraulic support or pressure elements. The position detectors act upon regulators for regulating a force differential between a larger pressing force exerted by bottom or lower support elements in relation to a lesser pressing force exerted by top or upper support elements. The excess or resultant of the pressing force produced by the bottom support or pressure elements decreases with increasing height of the position of the rolls until there is established an equilibrium position. During operation there exists an equilibrium condition between the upwardly directed force of the bottom support elements and the sum of the downwardly directed pressing force of the upper or top support elements and the weight of all of the parts therebetween.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: September 25, 1984
    Assignee: Escher Wyss Aktiengesellschaft
    Inventor: Mario Biondetti
  • Patent number: 4471642
    Abstract: A rod, bar or section mill has a train of rolling mill stands, each of which is attached to a bed plate with which the stand is introduced into, and withdrawn from, the mill. The bed plate carries pedestals on which are secured guides; those guides can be properly located on the bed plate prior to entry of the stand into the mill; on the stand being positioned in the mill, the guides are then automatically located relative to the pass-line and the down-time of the mill on stand replacement is reduced.
    Type: Grant
    Filed: January 26, 1982
    Date of Patent: September 18, 1984
    Assignee: Hille Engineering Company Limited
    Inventor: Alexander I. Wilson
  • Patent number: 4471824
    Abstract: A generally cylindrical sleeve is provided defining a bore extending longitudinally therethrough. The end of the bore opening outwardly through one end of the sleeve is outwardly flared and the other end of the sleeve is externally threaded. An internally threaded cap is threadedly engaged over the second end of the sleeve and defines an end wall removably closing the end of the bore opening outwardly through the second end. The inner side of the end wall is partial concave spherical and defines a concave recess opening toward the sleeve first end. A rigid disc having an abrasive disc abutted thereagainst may be clamped between the second end of the sleeve and the outer periphery of the end wall and the first end of the sleeve may be telescoped over a cue stick ferrule and the sleeve and cue stick may thereafter relatively rotated in order to abrasively clean and square the ferrule.
    Type: Grant
    Filed: November 3, 1983
    Date of Patent: September 18, 1984
    Inventor: Michael Zownir
  • Patent number: 4470442
    Abstract: A holding device for a rotary cutter has a supporting member extending over a greater part of each cutting element and having a web and holding tongues provided with an openings for receiving tightening screws, an abutment surface for abutting the cutting element and determining a projecting length of the latter, a wearing member fixed in the body part for abutment of the rear surface of the cutting element, a locking member for fixing the wearing member, a centrifuging wedge member with a wedge surface pressing the cutting element against the wearing member, wherein the wearing member has a locking groove which is open toward the cutting element and forms the abutment surface and in which the web of the supporting member is received in a form locking manner, and the centrifuging wedge member lies with its wedge surface directly against the front surface of the cutting element.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: September 11, 1984
    Assignee: Hombak Maschinenfabrik GmbH u. Co. KG.
    Inventors: Dieter Krautzberger, Harro Kr/o/ cher, Arnold Schmidt
  • Patent number: 4470441
    Abstract: A hydraulic wood splitter is disclosed which is configured for highly efficient and convenient wood splitting operation. In order to retain wood being split in proper position on the frame of the splitter, the construction includes a wood-retaining configuration for the wood-abutting splitting rams of the construction. Each ram includes a peripherally extending retaining lip which cooperates with an elongated slot defined by the frame of the splitter for retention of wood in proper position thereon. Additionally, the splitting wedge of the device is provided with a dual-tapered or double-beveled configuration for further facilitating convenient and efficient wood splitting.
    Type: Grant
    Filed: August 26, 1983
    Date of Patent: September 11, 1984
    Assignee: Ingersoll Equipment Co., Inc.
    Inventors: James L. Wirsbinski, Dale A. Manteufel