L-feed Patents (Class 144/250.23)
  • Patent number: 7159628
    Abstract: A split sawbox for a gangsaw includes a sawbox having at least first and second mating sawbox sections. The sections are linearly selectively translatable relative to one another between a closed position wherein the sections are releasably locked together for operation of the gangsaw, and an open position wherein the sections are linearly separated from one another to open a gap within which a workman may stand for maintenance of the gangsaw.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: January 9, 2007
    Assignee: Coe Newnes/McGehee Inc.
    Inventors: Brian Stroud, Rory M. Mitchell
  • Patent number: 6725891
    Abstract: Machine for profile working of front surfaces on oblong wood workpieces resolves the problem of simple, accurate and fluent or continued working of workpieces front surfaces of various lengths and intersections, and the machine is of a compact construction. It is characteristic by the construction of the entrance turnover device transversely placed between longitudinal conveyors with carriers, which has on the periphery of rotating wheels constructed movable bearing couplings, and by them fixed guiding plates with the groove inside which there are movably inserted guided bearings of bearing couplings. In the area of the entrance turnover device there are placed under an optional angle the oblique roller conveyors, inside which there are flexibly and circularly movably inserted rolls.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: April 27, 2004
    Inventors: Pavel Ledinek, Gregor Ledinek
  • Patent number: 6640855
    Abstract: A log processing machine and associate method employs one or more log guides to make joinery cuts in a processed log which has at opposed edges of the processed log the raw log's natural external contour. In a preferred embodiment of the invention, each log guide includes a straight edge and is attached to the processed log to create an artificial straight edge for guiding the processed log through the joinery machine. Prior to attachment, centerlines are marked on the log guide and the processed log, and the centerlines are aligned when the log guide is attached to the processed log. The processed log, with the log guide attached, is then moved through the machine with the aid of computer control while the straight edge of the log guide follows a fence. In this manner, the position of the processed log and its centerline are always known so that the computer can make the programmed joinery cuts with high precision.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: November 4, 2003
    Assignee: Hearthstone, Inc.
    Inventor: Randy K. Giles
  • Publication number: 20030155036
    Abstract: Machine for profile working of front surfaces on oblong wood workpieces resolves the problem of simple, accurate and fluent or continued working of workpieces front surfaces of various lengths and intersections, and the machine is of a compact construction. It is characteristic by the construction of the entrance turnover device transversely placed between longitudinal conveyors with carriers, which has on the periphery of rotating wheels constructed movable bearing couplings, and by them fixed guiding plates with the groove inside which there are movably inserted guided bearings of bearing couplings. In the area of the entrance turnover device there are placed under an optional angle the oblique roller conveyors, inside which there are flexibly and circularly movably inserted rolls.
    Type: Application
    Filed: October 30, 2002
    Publication date: August 21, 2003
    Inventors: Pavel Ledinek, Gregor Ledinek
  • Patent number: 6539830
    Abstract: In preferred embodiments the invention includes a transverse board conveyor, a board extrusion portion, a marking station a sawing portion, and one or more board feeding portions, all of which are controlled by a process controller. In such, preferred embodiments, one or more stacks of boards are serially fed onto the transverse board conveyor and are conveyed in a direction transverse to the length of the boards. The boards are individually deposited into an elongate receiver of a board extrusion portion to be conveyed longitudinally. A carriage in the receiver transports the boards past an end detection station, past a marking station, and to a sawing station. The carriage has a moveable clamping member which pinches the board between a wall of the receiver and the clamping member. The carriage moves down the receiver with the board clamped thereto conveying the board in a longitudinal direction to position the board in a desired position for sawing the board.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: April 1, 2003
    Assignee: The Koskovich Company
    Inventor: Jerome E. Koskovich
  • Patent number: 6220315
    Abstract: A method for processing of workpieces, which are supplied to a processing station, in which the workpieces are processed on one side, are moved out of the processing station, and are turned and again supplied to the processing station for processing the second side. In particular, a workpiece or workpiece package is individually supplied to the processing station, is processed there and individually moved on following the processing of both sides. The first side of one workpiece, whose second side has not yet been processed, and the second side of another workpiece whose first side had already been processed in the previous processing operation, are processed in one processing operation in the processing station, so that during each processing operation a workpiece processed on both sides is created together with a workpiece processed only on one side.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: April 24, 2001
    Inventor: Guenter Purschke
  • Patent number: 6173829
    Abstract: The board positioning device of the present invention is for optimally longitudinally positioning a board for trimming. The board is translated from an upstream position to a downstream position in a first direction towards the trimming saws. The board translates at a translation speed on a board translating device such as a lugged transfer chain. The board while translating in the first direction, is aligned longitudinally, that is, along its length, in a second direction perpendicular to the first direction so as to position the board relative to the saws. The board is urged by board ending means, such as ending rolls, in the second direction against a corresponding board positioning member, such as a shaft mounted paddle, on the board positioning device. In the preferred embodiment, the first and second directions lie in a generally horizontal plane.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: January 16, 2001
    Assignee: CAE Electronics Ltd.
    Inventors: James G. Jackson, James B. Hannebauer