Abstract: A method of position-based integrated motion controlled curve sawing includes the steps of: transporting a curved workpiece in a downstream direction on a transfer, and monitoring position of the workpiece on the transfer, scanning the workpiece through an upstream scanner to measure workpiece profiles in spaced apart array, along a surface of the workpiece and communicating the workpiece profiles to a digital processor, computing by the digital processor, a high order polynomial smoothing curve fitted to the array of workpiece profiles of the curved workpiece, and adjusting the smoothing curve for cutting machine constraints of downstream motion controlled cutting devices to generate an adjusted curve generating unique position cams unique to the workpiece from the adjusted curve for optimized cutting by the cutting devices along a tool path corresponding to the position cams, sequencing the transfer and the workpiece with the cutting devices, and sequencing the unique position cams corresponding to the work

Abstract: A method of position-based integrated motion controlled curve sawing includes the steps of: transporting a curved workpiece in a downstream direction on a transfer, and monitoring position of the workpiece on the transfer, scanning the workpiece through an upstream scanner to measure workpiece profiles in spaced apart array, along a surface of the workpiece and communicating the workpiece profiles to a digital processor, computing by the digital processor, a high order polynomial smoothing curve fitted to the array of workpiece profiles of the curved workpiece, and adjusting the smoothing curve for cutting machine constraints of downstream motion controlled cutting devices to generate an adjusted curve generating unique position cams unique to the workpiece from the adjusted curve for optimized cutting by the cutting devices along a tool path corresponding to the position cams, sequencing the transfer and the workpiece with the cutting devices, and sequencing the unique position cams corresponding to the work

Abstract: A method of position-based integrated motion controlled curve sawing includes the steps of: transporting a curved workpiece in a downstream direction on a transfer, and monitoring position of the workpiece on the transfer, scanning the workpiece through an upstream scanner to measure workpiece profiles in spaced apart array, along a surface of the workpiece and communicating the workpiece profiles to a digital processor, computing by the digital processor, a high order polynomial smoothing curve fitted to the array of workpiece profiles of the curved workpiece, and adjusting the smoothing curve for cutting machine constraints of downstream motion controlled cutting devices to generate an adjusted curve generating unique position cams unique to the workpiece from the adjusted curve for optimized cutting by the cutting devices along a tool path corresponding to the position cams, sequencing the transfer and the workpiece with the cutting devices, and sequencing the unique position cams corresponding to the work

Abstract: A method of position-based integrated motion controlled curve sawing includes the steps of: transporting a curved workpiece in a downstream direction on a transfer, and monitoring position of the workpiece on the transfer, scanning the workpiece through an upstream scanner to measure workpiece profiles in spaced apart array, along a surface of the workpiece and communicating the workpiece profiles to a digital processor, computing by the digital processor, a high order polynomial smoothing curve fitted to the array of workpiece profiles of the curved workpiece, and adjusting the smoothing curve for cutting machine constraints of downstream motion controlled cutting devices to generate an adjusted curve generating unique position cams unique to the workpiece from the adjusted curve for optimized cutting by the cutting devices along a tool path corresponding to the position cams, sequencing the transfer and the workpiece with the cutting devices, and sequencing the unique position cams corresponding to the work

Abstract: A method of position-based integrated motion controlled curve sawing includes the steps of: transporting a curved workpiece in a downstream direction on a transfer, and monitoring position of the workpiece on the transfer, scanning the workpiece through an upstream scanner to measure workpiece profiles in spaced apart array, along a surface of the workpiece and communicating the workpiece profiles to a digital processor, computing by the digital processor, a high order polynomial smoothing curve fitted to the array of workpiece profiles of the curved workpiece, and adjusting the smoothing curve for cutting machine constraints of downstream motion controlled cutting devices to generate an adjusted curve generating unique position cams unique to the workpiece from the adjusted curve for optimized cutting by the cutting devices along a tool path corresponding to the position cams, sequencing the transfer and the workpiece with the cutting devices, and sequencing the unique position cams corresponding to the work

Abstract: A method of position-based integrated motion controlled curve sawing includes the steps of: transporting a curved workpiece in a downstream direction on a transfer, and monitoring position of the workpiece on the transfer, scanning the workpiece through an upstream scanner to measure workpiece profiles in spaced apart array, along a surface of the workpiece and communicating the workpiece profiles to a digital processor, computing by the digital processor, a high order polynomial smoothing curve fitted to the array of workpiece profiles of the curved workpiece, and adjusting the smoothing curve for cutting machine constraints of downstream motion controlled cutting devices to generate an adjusted curve generating unique position cams unique to the workpiece from the adjusted curve for optimized cutting by the cutting devices along a tool path corresponding to the position cams, sequencing the transfer and the workpiece with the cutting devices, and sequencing the unique position cams corresponding to the work

Abstract: An edging and curve-sawing saw has a selectively skewable sawbox, skewable to a workpiece infeed path so as to receive workpieces translated longitudinally along the infeed path and into the sawbox. The sawbox rotatably supports a saw arbor. A plurality of saw blades are slidingly mounted on the saw arbor in a parallel laterally spaced array. The saw blade array spacing is selectively adjustable device mounted to the sawbox. The array is slide on the arbor relative to the sawbox according to an optimized profile.

Abstract: A sawguide positioning method for circular gang saws mounted on a single saw arbor shaft. A guide bar is positioned generally parallel to the saw arbor shaft. A plurality of sawguide pairs are slidably mounted on the guide bar for longitudinal axial travel thereon. The guides extend on either side of each of the circular saws. A pair of opposed sawguide positioning wedges are threadably mounted on a selectively rotatable shaft having a right hand threaded end and a left hand threaded end, the axis of the shaft being generally at right angles to both the saw arbor shaft and the guide bar. The wedges are threaded on to the selectively rotatable shaft with their vertices innermost. The threaded shaft has an enlarged diameter portion or disk intermediate the threaded ends which is rotatably positioned within matching recesses in the opposed faces of the sawguides.

Abstract: A first collar is releasably slidably journalled onto a selectively rotatable shaft so as to lie in a first plane generally perpendicular to the shaft. The first collar has a first helically inclined cam surface extending between a thin portion of the first collar and a thick portion of the first collar. A second collar is releasably mountable onto the shaft into fixed relation relative to the shaft, so as to lie in a second plane generally parallel to the first plane. The second collar has a cam follower surface such as a second helical inclined cam surface for sliding engagement over the first helically inclined cam surface between the thick portion and the thick portion of the first collar upon selective rotation of the shaft. First and second sawguides are slidably mounted on the shaft for longitudinal sliding thereon on opposed sides of the first and second collars. The first sawguide has the first collar rigidly mountable thereto, the first collar being adjacent the second collar.

Abstract: A method of position-based integrated motion controlled curve sawing includes the steps of: transporting a curved workpiece in a downstream direction on a transfer, and monitoring position of the workpiece on the transfer, scanning the workpiece through an upstream scanner to measure workpiece profiles in spaced apart array, along a surface of the workpiece and communicating the workpiece profiles to a digital processor, computing by the digital processor, a high order polynomial smoothing curve fitted to the array of workpiece profiles of the curved workpiece, and adjusting the smoothing curve for cutting machine constraints of downstream motion controlled cutting devices to generate an adjusted curve generating unique position cams unique to the workpiece from the adjusted curve for optimized cutting by the cutting devices along a tool path corresponding to the position cams, sequencing the transfer and the workpiece with the cutting devices, and sequencing the unique position cams corresponding to the work

Abstract: A device for positioning sawguides for circular gang saws includes a first shaft rotatable about a first axis, an annular gear having an outer surface and a concentric threaded inner surface and rotatable in a first plane about a second axis, the first plane generally perpendicular to the second axis, the first shaft rotatably engagable with the outer surface of the annular gear wherein rotation of the first shaft about the first axis rotates the annular gear about the second axis, the annular gear journalled on and coaxial with a second shaft lying along the second axis, a collar slidably mounted on the second shaft and adapted for non-rotational longitudinal sliding along the second shaft, the collar having an outer threaded surface concentric with the threaded inner surface on the annular gear for journalled threaded engagement therein whereby rotation of the annular gear by the first shaft causes longitudinal translation of the collar along the second axis relative to the annular gear, first and second pa

Abstract: A lug loader for loading individual boards of lumber from a feed transfer to a lugged transfer in a lumber mill. A plurality of saw-toothed wheels engaged each board in turn and propels it onto the lugged transfer. A plurality of parallel stop members receive boards individually from the feed transfer, each stop member having a board-receiving portion to receive and support a board lying transversely across the stop members and a stop portion preventing further travel of the board when resting upon the stop members. The stop members are movable between raised and lowered positions and are located relative to the saw wheels such that a board lying across the stop members is maintained out of engagement with the saw wheels in their raised positions and may be lowered into engagement with the saw wheels. The presence or absence of a board on the stop members is detected and a control signal is generated in accordance with the condition detected.