Patents Examined by Jorji M. Griffin
  • Patent number: 4463786
    Abstract: Apparatus for cutting flat bottomed daps in heavy timber includes conveyor means for moving the timber through the apparatus and a cutter head operable to cut a relatively wide dap in one surface of the timber. The cutter head is supported for movement to adjust the depth of the dap and to adapt the apparatus to dap timber of various sizes. The cutter head is also supported for limited movement longitudinally of the timber along a track mounted for limited pivotal movement about an axis extending in spaced relation to and transversely of the timber whereby the angle of the bottom surface of the dap relative to the longitudinal axis of the timber can be varied. By moving the cutter head to a plurality of positions along its pivotal support track and moving the cutter head and timber relatively to one another to make a dap at each position with the daps either overlapping or being spaced from one another, the bottom surface of the respective daps will all lie in a common plane.
    Type: Grant
    Filed: July 2, 1982
    Date of Patent: August 7, 1984
    Inventor: Hayes R. Mellott
  • Patent number: 4463586
    Abstract: The invention relates to an improvement in a metal strip rolling apparatus. The metal strip rolling apparatus consists of a rolling mill, a tension take-up reel to receive the metal strip passing through the mill, and a shape sensing roll mounted between the mill and the take-up reel. The shape sensing roll provides information for adjusting the mill for correction of the shape of the metal strip in the mill. The improvement consists of a closed loop system for automatically adjusting actual wrap angle of the metal strip on the shape sensing roll. The closed loop includes hydraulic lifts, disposed at either end of the shape sensing roll, for adjusting the position of both ends of the shape sensing roll simultaneously relative to the position of the take-up reel. A servo actuator controls the operation of the hydraulic lift. An electronic processor receives information from the shape sensing roll relating to its actual wrap angle, and it has in its memory a quantity indicative of a desired wrap angle.
    Type: Grant
    Filed: April 13, 1983
    Date of Patent: August 7, 1984
    Assignee: Reycan Research Limited
    Inventor: Alan O. Griffin
  • Patent number: 4462440
    Abstract: A jig for cutting pins and tails in the edges of boards for use in forming a dovetail joint between the boards. The jig has a rectangular base with a first leg attached along one elongated edge and extending at a right angle to one surface of the base and a second leg attached along the opposite elongated edge and extending at a right angle to the other surface of the base. The first leg has a plurality of angled saw guide kerfs and a plurality of angled saw guide kerfs located in the base are connected with the saw guide kerfs in the first leg for cutting tails. The second leg has a plurality of angled saw guide kerfs and a plurality of angled saw guide kerfs located in the base are connected with the saw guide kerfs in the second leg for cutting pins. Adjustment screws may extend through the first leg to adjust the tolerance between the pins and the tails.
    Type: Grant
    Filed: November 30, 1983
    Date of Patent: July 31, 1984
    Inventor: John J. Dolfi
  • Patent number: 4461331
    Abstract: An apparatus for splitting logs into billets and having a pivoting splitter head mounted at one end of an elongated log support upon which logs are placed for splitting. The splitter head is supported by a pin extending from a splitter head mount attached to the log support toward a pusher that forces the log into the splitter head. Platforms are attached to the pusher and extend therefrom along the sides of the log support to receive the billets into which a log is split, the attachment of the platforms to the pusher maintaining the platforms in lateral alignment with the log as the log is split. The apparatus is mounted on a wheeled chassis having a trailer tongue at one thereof for towing the apparatus to a work site.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: July 24, 1984
    Assignee: Mertz, Inc.
    Inventor: Forrest H. Mertz
  • Patent number: 4458517
    Abstract: A controlled deflection roll contains support elements or groups of such support elements which support the roll shell in relation to the roll support with forces which differ with respect to one another in accordance with a predetermined function, notwithstanding the fact that the support elements are acted upon by the same control signal from a common control source. When using hydraulic support elements this can be realized by throttle elements or throttle means located in the infeed line to one of the support elements which, if desired, also can possess a cross-sectional area which differs from the cross-sectional area of the simultaneously controlled support elements.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: July 10, 1984
    Assignee: Escher Wyss Aktiengesellschaft
    Inventor: Wolfgang Schuwerk
  • Patent number: 4458515
    Abstract: In a sheet rolling mill having work rolls and backup rolls, rolling of flat sheets is facilitated by controlling constant the transverse rigidity or deflection in the direction of width of rolls. The rolling force is detected, and based on the rolling force thus detected, the value for correcting the crown of the work roll is calculated by a transverse rigidity coefficient and a function determined by sheet thickness to control the transverse rigidity.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: July 10, 1984
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventor: Isao Imai
  • Patent number: 4457155
    Abstract: The mill stand houses a pair of upper backup rolls and a pair of lower backup rolls between which pairs the upper and lower roll drive shafts are journalled. The overhung work rolls are affixed to the ends of the drive shafts. Apparatus is provided for automatically adjusting the work rolls longitudinally, for automatically adjusting the loading on the backup rolls and for maintaining the drive shafts parallel under load. An automatic gauge control system for making the above adjustments and capable of varying the mill stand modulus or spring continuously from a stiff or constant roll gap modulus to a soft or constant pressure modulus is also described.
    Type: Grant
    Filed: March 3, 1982
    Date of Patent: July 3, 1984
    Assignee: White Consolidated Industries, Inc.
    Inventor: Werner W. Eibe
  • Patent number: 4455856
    Abstract: A coolant seal for use in a rolling mill wherein the neck of a roll is rotatably supported in an oil film bearing contained within a bearing chock, with a seal assembly located between the roll end face and the bearing chock to retain oil in the bearing and to exclude contaminants such as cooling water, mill scale, etc. from the bearing. The seal assembly includes a circular seal end plate fixed relative to the bearing chock at a location surrounding a circular flanged seal mounted on the roll neck for rotation therewith. The coolant seal is circular, with a radially disposed mounting flange integrally joined at its inner edge to a sealing flange extending angularly and flexibly therefrom. The mounting flange is secured to a mounting surface on the seal end plate at a location placing the sealing flange in frictional contact with the roll end face.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: June 26, 1984
    Assignee: Morgan Construction Company
    Inventors: Lowell S. Salter, Jr., Ralph F. Divirgilio, Russell A. Brickey
  • Patent number: 4456042
    Abstract: A planer of the type adapted to be mounted on and driven by a multipurpose woodworking tool includes a housing, a rotating blade member, and a table mounted beneath the blade member and vertically displaceable relative thereto by a plurality of jack screws. The jack screws carry connector nuts having outer members attached to the table which allow relative sideward movement between the table and screws to minimize table binding. A chain drive engages the jack screws and includes an idler sprocket which can be adjusted to allow adjustment of an individual jack screw to level the table. First and second roller assemblies upstream and downstream of the blade member are rotatably mounted on the housing and are vertically displaceable; the roller assemblies are driven by a single, fixed drive sprocket which is capable of rotating the rollers throughout a range of vertical displacement.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: June 26, 1984
    Assignee: Shopsmith, Inc.
    Inventors: Donald L. Clark, John G. Legler
  • Patent number: 4454898
    Abstract: A router bracket for attaching a router to a radial arm saw or other device having adjusting and positioning mechanisms, comprising an L-shaped bracket frame wherein the horizontal leg is bolted to the drive shaft of the radial arm saw motor or corresponding element of a similar device and the vertical leg of the bracket is substantially parallel to the side wall of the motor or comparable part of a similar device. An adjustable abutting plate is positioned between the vertical leg of the bracket and the tool device to which it is connected, with a rotatable screw positioned between the said vertical leg and said adjustable abutting plate to move the latter into tight bearing relationship against a side wall portion of the tool or device to which the bracket is connected. A saddle for receiving a router therein is mounted along the vertical wall of the bracket, and separate adjusting means are provided to move the saddle and router mounted therein upwardly and downwardly along the vertical leg of bracket.
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: June 19, 1984
    Inventor: Anthony J. Pavnica
  • Patent number: 4450882
    Abstract: A highly productive completely automatic tracing shaper machine tool performs sequential operations without manual attention permitting a single operator to simultaneously run several machines without being exposed to the shaper heads of the machine. The tracing shaper machine tool has a track mounted vacuum feed table or chuck clamping thereon a template or pattern and the wood workpiece to be shaped. The table is manually positioned on the track to accommodate a wide range of workpiece sizes and this initially positioned table or chuck with the stacked template and workpiece vacuum clamped thereon is automatically biased toward a selectable speed driven upright shaper tool carrying spindle with a rotatable follower bearing surrounding the spindle receiving the periphery of the template thereagainst at a constant pressure. The feed table or chuck is rotated to provide a desired feed rate of the workpiece to the shaper tool, and this rotation continues somewhat beyond a
    Type: Grant
    Filed: October 14, 1981
    Date of Patent: May 29, 1984
    Inventors: Lonnie G. Hitchcock, Richard J. Flanigan
  • Patent number: 4450702
    Abstract: A tubular cobbler suppressing device for a rolling mill producing rod product of diameter D, wherein there is a preferred relationship among rod product (D), the internal diameter (D.sub.1) of tubular guide members of a pouring reel and internal diameter (D.sub.2) of the cobble suppressing device, such thatD.sub.1 .gtoreq.2.5 D.sub.2 andD.sub.2 >D but .ltoreq.3 D.
    Type: Grant
    Filed: November 23, 1982
    Date of Patent: May 29, 1984
    Assignee: Bethlehem Steel Corp.
    Inventors: Duane B. Larson, Richard J. Westermeier
  • Patent number: 4449555
    Abstract: A guide device for the transfer of articles from a feed path or a tooling path to a lower discharge path of a machine tool. The guide device has a vertical component situated at the end of the tooling path of the machine tool and a horizontal component which passes into the discharge path. The vertical component changes the direction of the arriving article, and the horizontal component brings the article into a pre-oriented position on the discharge path, running toward the tending side of the tooling path.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: May 22, 1984
    Assignee: Helmes Machinefabriek B.V.
    Inventor: Jacobus H. Luyten
  • Patent number: 4448229
    Abstract: An apparatus for securely positioning thin work pieces for accurate joining of edges using a standard woodworker's bench plane. The plane slides on its side surface on a lower platen surface, and the blade is guided in a very straight path for the cut by a vertical surface which contacts the portion of the sole of the plane lateral to the blade. Work pieces are secured against an upper platen surface by a clamping bar, which is attached by screws at its ends to the platen. Between the clamping bar and the work piece there is a clamping caul, which applies adjustable spaced clamping forces to the work piece by means of individual screws through the clamping bar.Attachable planing fence and miter gage accessories are also disclosed, which permit accurate repeat positioning for taper, cross-grain, and length cuts at selectable angles.
    Type: Grant
    Filed: March 5, 1982
    Date of Patent: May 15, 1984
    Assignee: International Design Corporation
    Inventors: William D. Woods, John H. Pigman
  • Patent number: 4446711
    Abstract: One embodiment of an invention providing am inprovement upon a U-bolt bender is disclosed. The bender has a clamp for clamping a workpiece thereto and a slide for advancing the workpiece along a path. The improvement comprises a die and rollers for urging an intermediate portion of the workpiece against a forward surface of the die and for urging end portion of the workpiece respectively against sides of the die adjacent to the forward surface. The bender carries the rollers and the slide carries the die and brings the workpiece into engagement with the rollers by advancing the workpiece along the path. The sides of the die converge together and extend away from the forward surface such that as the slide brings the workpiece into engagement with the roller, the rollers urge the intermediate portion of the workpiece against the forward surface and urge the end portions of the workpiece respectively against the sides of the die, the slide meanwhile causing the clamp to clamp the workpiece to the die.
    Type: Grant
    Filed: August 18, 1982
    Date of Patent: May 8, 1984
    Assignee: Vale Industries, Inc.
    Inventor: Raymond L. Valente
  • Patent number: 4445354
    Abstract: The present invention relates to a cold pilger rolling mill and a method and means for manufacturing tubes with externally and/or internally thickened portions by reducing the tubes over a mandrel by means of grooved rolls which are mounted in a reciprocating roll stand. The invention provides several different varying diameter grooves on the rolls, which grooves can be brought into play one after the other by rotation of the rolls through an adjustment of the toothed racks on which the rolls are mounted. Consequently, at least one groove is provided for the rolling out of the required cross-section of most of the tube and a second groove is provided for the rolling of a thickened portion of the tube. It is essential that a smoothing zone is associated with each groove, and a zone for rotating and advancing the tube is associated with at least one of the grooves.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: May 1, 1984
    Inventors: Gerd Pfeiffer, Horst Stinnertz, Fritz Zeunert
  • Patent number: 4444233
    Abstract: A knife is secured in a holder by a cambered clamp plate which is flattened against one face of the knife by a pair of sliding wedges engaging opposite side edge portions of the clamp plate. The wedges are tightened individually to facilitate accurate positioning of the clamp plate and proper seating of the knife for producing a smooth surface on the underlying wood.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: April 24, 1984
    Assignee: Dorothy W. Miller
    Inventor: Fred L. B. Miller
  • Patent number: 4443990
    Abstract: A method of processing and producing crack free logs by making a saw cut along opposite longitudinal side portions of a log immediately after harvesting and thus curing the log, without debarking, in a shaded, ventilated air space so that any cracks will be concentrated along the saw cuts. When a finished appearance is desired, a groove is formed along the opposite side portions of the log in registry with the saw cuts and a spline or strip of wood is inserted in each groove so that it projects beyond the periphery of the leg with the spline or strip being secured in the grooves by glueing or the like. The peripheral or exterior portion of the spline or strips is peeled or cut off so that the resulting surface is contiguous with the peripheral surface of the log.
    Type: Grant
    Filed: March 11, 1982
    Date of Patent: April 24, 1984
    Inventor: Wilfred B. Johnson
  • Patent number: 4444232
    Abstract: A log splitter includes a base having a splitting device at one end and a ram movable along the rail for splitting logs by forcing their faces against the splitting device. The splitting device combines a splitting wedge and a penetrating device which extends forwardly from the splitting wedge for initial penetration of the face of the log, having a penetrating edge parallel to and in front of the cutting edge and located proximate the rail with height less than the cutting edge. The penetrating edge initially penetrates the log face at a location near the rail when the ram drives the log toward the splitting device. The penetrating device is itself of wedge-like, prow-configured character having diverging portions extending rearwardly from the penetrating edge on opposite sides of the cutting edge of the splitting edge of the splitting wedge to provide initial partial splitting of the log face near its periphery prior to its being driven against the cutting edge.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: April 24, 1984
    Inventor: Eugene W. Loos
  • Patent number: 4442877
    Abstract: A material feed control mechanism for a wood or brush chipper having an upright stop gate vertically movable to a material obstructing position extended transversely across and within the feed housing, and forwardly of the cutter to a material non-obstructing position projected upwardly from the housing. A latch assembly for releasably holding the stop gate in the material non-obstructing position associated with a release mechanism actuated by a lever system operable independently by any one of a plurality of handles one of which is arranged forwardly of the feed housing and a pair of which are located at opposite sides of the feed housing, to permit the fall of the gate to the material obstructing position therefor.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: April 17, 1984
    Assignee: Vermeer Manufacturing Company
    Inventor: Edward L. Uitermarkt