Circular Section Patents (Class 144/4)
  • Publication number: 20030226617
    Abstract: A butt reducer machine is provided to remove excess wood from the swelled butt ends of logs. Cutting heads supported on pivoting arms, carried in turn within a rotating frame, are caused to oscillate circumferentially about the portion of the log to be removed. This butt-removal process may be carried out while a log is in motion longitudinally, either before or after the log enters a de-barking machine. The process may also be effected on a stationary log.
    Type: Application
    Filed: June 11, 2002
    Publication date: December 11, 2003
    Inventor: Andre Choquette
  • Patent number: 6135174
    Abstract: A lathe cutter and chip fan is described in which an annular frame includes a rotary portion that is driven to rotate about an axis. The rotary portion is annular, forming a workpiece receiving opening. A cutter is mounted on the rotary portion and projects into the workpiece receiving opening. The cutter rotates with the rotary portion to cut material from a workpiece positioned within the workpiece opening. A housing forms a compartment about the rotary portion and cutter, with a central housing opening substantially aligned with the workpiece receiving opening. A chip discharge openly communicates with the compartment and is situated substantially tangentially with respect to a rotational path of the cutter. A plurality of impellers are mounted to the rotary portion for rotation therewith.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: October 24, 2000
    Assignee: Nevilog, Inc.
    Inventor: Richard L. Neville
  • Patent number: 6039094
    Abstract: A log turning machine is described in which a support frame mounts a rotary cutter with a log receiving opening positioned to receive an elongated log workpiece that is moved relative to the support frame in a forward direction of travel along an axis. The rotary cutter is operable to cut the log workpiece to a prescribed diameter centered on the axis. A set of elongated guide members having opposed first and second ends are mounted to the support frame by sets of links for adjustable movement substantially radially with respect to the axis between a minimum and a maximum cutting diameter. The first ends of the guide members are positioned downstream of and adjacent the rotary cutter and extend substantially parallel to the axis by a distance that is a multiple of the maximum cutting diameter. Guide member positioners operatively connect at least some of the guide members and support frame to enable selective adjustment of the guide members substantially radially between the minimum and maximum diameter.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: March 21, 2000
    Assignee: Nevilog, Inc.
    Inventor: Richard L. Neville
  • Patent number: 5722475
    Abstract: An apparatus and method for machining the surface of logs, in which the log is longitudinally advanced through an opening provided in a rotor disc and the surface of the log is machined by rotatable cutting heads mounted on respective supporting arms pivotably connected to the rotatable disc and rotating therewith around the logs. The cutting heads are rotated around respective axes of rotation, while concurrently the cutting heads rotate with the rotor disc around the log such that the net rotational speed of the cutting heads at the surface of the log is the sum of the speed of rotation produced by the rotatable disc and the speed of rotation of the cutting heads around their respective axes.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: March 3, 1998
    Inventor: Matti K. Lammi
  • Patent number: 5645117
    Abstract: A turner holds a wood blank while positioning it adjacent a cutting bit of a router to cut the blank into a shaped cylindrical object. The turner includes a mandrel and two mandrel wheels attachable to ends of the mandrel, which each have finger gripping portions. A wood block is disposed on the mandrel and the wheels are attached to the mandrel. Spacers may be used to position the wood block. The mandrel/wood block assembly is then moved adjacent a cutting bit, such as a router bit, to remove wood from the wood block. This enables generally cylindrically shaped objects to be formed which may then be polished and finished and used in pens, mechanical pencils, handles and like holders.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: July 8, 1997
    Assignee: Woodworker's Supply
    Inventors: John Wirth, Jr., Jay L. Sanger, Mark P. Tompkins
  • Patent number: 5025842
    Abstract: A machine for milling fence rails and the like having a pair of opposed milling units, each having a cutter head with a conically shaped inner surface, cutting knives arranged to taper material inserted into the heads to the shape of the inner surface and to form a projecting tine that is also tapered.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: June 25, 1991
    Inventor: Frank E. Brimhall
  • Patent number: 4770215
    Abstract: A wood bar rounding machine which has two or more cutting and sanding units arranged concentrically so that a rectangular timber can be rounded and polished to a desired size. The desired product in a high quality can be obtained by a series of sequential steps of rough cutting and fine cutting and sanding after the wood is inserted at the front end and fed automatically by feed rollers.
    Type: Grant
    Filed: June 11, 1987
    Date of Patent: September 13, 1988
    Inventor: Sung-Shui Hsieh
  • Patent number: 4630660
    Abstract: A dowell making machine which has a central hollow shaft which is adapted for rotation on connection to a driving means and has associated therewith an end plate which is co-axial with the shaft and adapted to rotate therewith, the end plate having a central aperture larger in diameter than the dowell to be made and having cutting blades thereabout, a cylindrical saw blade is associated with the tool and is co-axial with the axis of the aperture of the shaft and is located between the end plate and the shaft, the arrangement being such that timber passing through the end plate is force formed to a substantially cylindrical shape and, on passing through the cylindrical blade, is sized to form a dowell.
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: December 23, 1986
    Inventor: William J. McGuire
  • Patent number: 4562873
    Abstract: For milling root butts on round timber, a trunk is clamped at a predetermined location and non-rotatable, a milling shaft with a milling tool is brought into abutment against the trunk, the milling tool mills in the trunk butt in the abutment region to a predetermined radial depth, then by a rotary device it is moved around the trunk and mills the root butt over the entire trunk periphery with controlling of the respective radial depth of the milling shaft by a sensor arranged to sense the outer surface of the trunk.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: January 7, 1986
    Assignee: Hombak Maschinenfabrik GmbH & Co. KG.
    Inventors: Harro Krocher, Dieter Krautzenberger, Hans Sybertz, Uwe Becker
  • Patent number: 4554958
    Abstract: An apparatus for rounding the circumference of a wood log which is supported by two sets of three drive rollers at spaced points between the ends of the log to establish a geometrical center. A knife is positioned extending the length of the log for cutting off a portion of the log for rounding the circumference of the log. The lower rollers are connected together through a shock absorber to accommodate varying diameters and one roller of each set is connected together by a torsion bar. One of the lower rollers of each set is positioned upwardly relative to the other lower roller an amount for allowing the apparatus to provide a maximum yield from different diameter logs. The rollers are of a plurality of self-cleaning, rotatable drive discs. The apparatus may include debarking arms. And the apparatus may sort the rounded up logs by diameter size.
    Type: Grant
    Filed: May 17, 1984
    Date of Patent: November 26, 1985
    Assignee: Arthur Temple, III
    Inventor: Charles J. Schmidt
  • Patent number: 4553575
    Abstract: A dowel cutting method and apparatus comprising a stationary cutting tool having an internal bore and at least one cutting edge at its input end into which woodstock is disposed while being rotated by an electric hand drill or the like to create a finished dowel at the opposite end of the cutting tool. The cutting tool may be held in a bench vise. A sizer for dowels is also disclosed comprising a series of holes in a flat metal plate having a ground side which cuts down a dowel in a sequence of operations, if needed, to an accurate smaller dowel. A simple final sanding operation is also disclosed utilizing sandpaper and the sizing apparatus.
    Type: Grant
    Filed: December 13, 1983
    Date of Patent: November 19, 1985
    Inventor: Kenneth L. Brown
  • Patent number: 4549586
    Abstract: With a cylinder saw arranged rotatably in a machine frame, only circular profiles are sawed out of boards and beams. This cylinder saw possesses a toothed arrangement, at least on the front side, and is rotatably supported by support and guide rollers in the machine frame. The outside circumference of the cylinder saw is embraced by a continuous, driven belt. A planing fixture is arranged behind the device for sawing out circular profiles with the aid of the cylinder saw and with this planing fixture any desired concave, convex or straight profile shapes can be milled into circular wooden pieces or boards. The planing fixture consists of four profile planing shafts arranged uniformly distributed on the outer circumference, the axes of which are adjustable relative to the longitudinal central axis of the wooden beam to be processed.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: October 29, 1985
    Inventor: Leo Klocker
  • Patent number: 4519429
    Abstract: A machine for forming a smooth surface on a cylindrical log workpiece as it is moved longitudinally past a cutting station which includes both shaping and planing blades. The same cutting pass also includes a cove cutting operation to cut a longitudinal cove cut on the surface of the log workpiece and a plurality of transverse saddle cuts across the log workpiece.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: May 28, 1985
    Inventor: Charles H. Dreese
  • Patent number: 4497352
    Abstract: An adjustable Violin Peg and Dowel Shaving Device capable of shaving a tapered or non-tapered peg or dowel from a size substantially that of a full size cello peg down to almost the size of a toothpick with only one adjustment. The device comprises two guide bolts each extending along an axis through bores in two substantially rectangular blocks, the first block being secured to the guide bolts and having a V-shaped groove in one side facing the second block, and whereby the second block is movable along said guide bolts having a taper adjusting cutterblade mounted thereon. Two adjusting nuts threadedly received by said guide bolt ends rotatably advance said movable block toward said V-shaped groove which accommodates a peg or dowel for shaving.
    Type: Grant
    Filed: May 9, 1983
    Date of Patent: February 5, 1985
    Inventor: Paul K. Lippolt
  • Patent number: 4470225
    Abstract: A machine which orbits an abrader or cleaning tool about a fixed axis at a relatively low speed in which the orbital radius of the abrader may be changed while the machine is in operation.
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: September 11, 1984
    Assignee: Grumman Aerospace Corporation
    Inventors: Robert P. Darling, Leonard J. Ober
  • Patent number: 4467848
    Abstract: A log shaping machine for cutting logs to a desired diameter and for cutting off root outgrowths, has a cutting ring with inwardly pointing tools which rotate with the ring. For the purpose of changing the effective cutting diameter of the tools the ring is rotatably supported on a gyratory frame moving generally parallel to itself so that each point of the gyratory frame moves periodically on a circle while the orientation in space of the gyratory frame is maintained. This gyratory motion of the gyratory frame may undergo adjustment in size by changing the radius of the said circle within the range from zero up to a maximum value by means of adjustable eccentrics on which the gyratory frame is suspended and which are also used for driving the gyratory frame.
    Type: Grant
    Filed: July 19, 1982
    Date of Patent: August 28, 1984
    Assignee: Maschinenfabrik Esterer AG
    Inventor: Ludwig Schmid
  • Patent number: 4378035
    Abstract: A machine for processing wood logs for construction of log houses. The machine includes means to load raw logs into a self-centering means, whereby a carriage assembly can be centered over the logs and the log is mounted in the carriage on powered centers, by means of which it can be rotated. The carriage travels longitudinally on tracks on a linear frame past a plurality of rotating cutters. As the log rotates the cutters cut the log down to a selected final diameter. The carriage is then run back to its starting point, the centers are locked so that the log cannot rotate and two cutters are positioned at equal distances above and below the axis of the log to cut tongues and grooves on the top and bottom of the log, respectively. Additional means are provided for cutting a saddle notch beneath the log, to cut the logs to precise length, to cut a vertical notch in each end for the purpose of joining logs end-to-end, and means for longitudinally slitting the log.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: March 29, 1983
    Inventor: Finis L. Chisum
  • Patent number: 4371018
    Abstract: A method and apparatus for lengthening or shortening a pole supporting lines, such as electric power and telephone lines. The method includes the providing of a stub adapted to be joined in abutting end-to-end relationship with the lower end of the pole to form a lower extension and support for the pole. The pole is raised vertically until its lowermost end portion is clear of the ground so that a lower end portion of the pole can be sized, as necessary, for reception by a mechanism joining the pole and stub. If necessary, the length of the pole is also shortened to provide a desired combined length. After the lower end has been sized, the pole and stub are joined to each other so that they constitute, in effect, a substantially rigid continuation of each other. The pole and stub are then vertically lowered into the ground to a required depth and the ground is consolidated around the base of the stub. The apparatus includes appropriate structure for accomplishing the preceding method.
    Type: Grant
    Filed: September 17, 1980
    Date of Patent: February 1, 1983
    Inventor: Victor Arnold