Abstract: The present disclosure provides a device and a method for reducing and homogenizing residual stress during machining in which a workpiece is fixed, such as milling, boring, drilling and planning, with which high-energy acoustic waves are emitted to the workpiece via a tight contact between a plurality of high-energy wave exciters on a bench and a workpiece coated with a coupling medium, and residual stress inside the machined workpiece is reduced and homogenized through elastic wave energy generated in the workpiece by the high-energy acoustic waves. In this way, the purpose of reducing and homogenizing the residual stress while machining is achieved, realizing a stress-free machining, and the deformation of the workpiece during and after machining is minimized.

Abstract: Various embodiments of devices, systems, and methods for surgical procedures, including spring-fit guides for improved guidance of surgical instruments, are disclosed.

Abstract: A tool assembly is provided with an integrated support fixture and assemblies for orienting the tool at different angles relative to a workpiece. A guide rail assembly is provided that defines a travel path for the tool slidably supported thereon. The support fixture is configured to support the tool assembly on a workpiece so that gravity can assist movement of the tool across the workpiece. The guide rail assembly is mounted on a miter plate that can be oriented at different miter angles relative to the support fixture. The tool may be supported on the guide rail assembly to permit pivoting of the tool perpendicular to the miter angle. Another assembly may be provided that permits pivoting of the guided rail assembly at an orthogonal angle.

Abstract: An integrated mechanical stop and securing apparatus for the safe positioning and securing of a short cut-off workpiece in close proximity to a cutting tool during a cutting operation. The mechanical stop is attached to a fence, work surface or similar structure using a moveable clamp. The workpiece stop further includes a pivotally attached securing member that abuts a surface of a workpiece during a cutting operation involving a relatively short cut-off. Biasing force for the securing member is provided by an operator grasping a handle on the securing member. Increased safety is provided when the stop device maintains the operator's hands outside of the effective cutting area of the power tool, while providing an accurate and reliable stop to index the cut.

Abstract: A saw guide for guiding the blade of a saw during cutting of a workpiece comprises a housing having a basal surface and a guide surface adapted to be positioned on a workpiece to be cut, such that with the basal surface engaging a surface of the workpiece, the guide surface extends across the surface to be cut at a forward position of the housing, such that a cutting member in face to face contact with the guide surface may be guided during cutting of the workpiece, and measuring means for measuring a position of the guide surface with respect to the workpiece such that, in use, the position of the guide surface may be monitored by reference to said measuring means, during a cutting operation of the workpiece. The saw guide enables a cut to be made with continual reference to the measuring means.

Abstract: A digital miter saw for cutting a workpiece includes a base, a member supported on the base and moveable relative to the base, and a cutting member moveable with the member. A detector is provided for detecting at least one of a miter angle and a bevel angle between the cutting member and the workpiece, and for outputting a signal indicative of the at least one detected angle, and a digital controller is provided which has an interface operable to receive the signal.

Abstract: A material trimmer for trimming sheet material having a blade slidingly engageable with the sheet material along a cutline and an indicator indicative of the approximate location of the cutline. The indicator provides for ready and correct orientation of the sheet material within the material trimmer. In one set of embodiments, the blade is attached to a carriage or trolley adapted for sliding translation along a portion of a guide. The guide is operatively connected to a base. The indicator is disposed in relation to a slot provided in the guide overlaying the sheet material orientated on the base. The indicator may comprise a cord operatively connected to the guide. The tension of the indicator is maintained or adjusted through manipulation of one or more tensioners operatively connected to the guide.

Abstract: A swing arm has a fixture at one end for mounting a hand tool, and a longitudinally-extending channel including a slot. An elongate slider member is engaged in the channel, and includes a point offset longitudinally from center of the slider member for engagement with a workpiece to define a center about which the swing arm is rotated. A fastener having a head and threaded shank is retained in a recess such that the shank extends through the slot. A threaded knob is engaged with the shank for clamping the slider member in position, and a handle connected to and captively retained with the knob is free to rotate about a handle axis.

Abstract: An alignment device including a body having an alignment edge configured to guide a cutting device, an extension portion pivotal relative to the alignment edge, and at least one cutting-line indicator configured to be selectively positioned on the extension portion and configured to indicate a cutting line for the cutting device. In some embodiments, the alignment device may include a plurality of pitch selectors configured to indicate a plurality of different angles, including a first pitch selector indicating a first angle. The body further may include a level indicator configured to identify whether a plank is at first angle when the first pitch selector is selected and the body is positioned in a pitch measurement position on the plank.

Abstract: An alignment device including a body having an alignment edge configured to guide a cutting device, an extension portion pivotal relative to the alignment edge, and at least one cutting-line indicator configured to be selectively positioned on the extension portion and configured to indicate a cutting line for the cutting device. In some embodiments, the alignment device may include a plurality of pitch selectors configured to indicate a plurality of different angles, including a first pitch selector indicating a first angle. The body further may include a level indicator configured to identify whether a plank is at first angle when the first pitch selector is selected and the body is positioned in a pitch measurement position on the plank.

Abstract: A saw table for sheet material includes a platform having an abutment stop along one edge for engaging and locating sheet material supported on the platform. A mast is disposed adjacent to the platform edge for rotation about an axis perpendicular to the platform. A boom extends from the mast over the platform, and has an elongated track perpendicular to the axis of the mast. A carriage is carried by the boom for movement along the track. The carriage is adapted for mounting a saw, such as a circular saw, such that movement of the carriage along the track brings the saw into engagement with sheet material supported on the platform against the abutment stop.

Abstract: A miter saw for displaying angle of a cutter blade cutting the workpiece. The miter saw has a base mounting a workpiece thereon, a movable member movably supported to the base, and a cutting unit connected to the movable member for supporting the cutter blade. A positioning portion is associated with the movable member and provides a predetermined nominal position of the movable member with respect to the base. The predetermined nominal position includes a reference position and other positions labeled angle. A detector detects the position of the movable member with respect to the base. A processor sets an angle between the reference position and the predetermined nominal position as a displayed moving amount when the movable member is positioned at the predetermined nominal position. Otherwise, the processor computes the moving amount based on the output signal from the detector.

Abstract: A cutting system for accurately cutting a notch in a piece of lineal to permit sharp bending of the lineal, permitting the lineal to be placed about the perimeter of picture or similar structure is disclosed. The cutting system includes a handle for driving a cutting blade in the direction of the force of gravity, and includes a retracting mechanism to return the handle and cutting blade to an initial starting position after each cut. A laterally reversible measuring assembly consisting of a measuring guide barn and a pair of adjustable measuring stops for measuring and supporting a piece of lineal to be cut, is releasably secured to the cutting system, facilitating interchange between left and right lateral configurations.

Abstract: The present invention provides a precision miter gauge for orienting and positioning a workpiece relative to a cutting tool. The miter gauge reduces positioning errors and improves repeatability. The miter gauge includes a base and a body pivotably connected to the base. A positioning edge of the body contains a plurality of teeth between which a positioning member connected to the base is inserted and locked in place. In this manner, relative movement of the positioning body relative to the base is inhibited.

Abstract: Prior power tool guides have not been successful as they have been awkward and inconvenient for a busy tradesperson to position on the workpiece. Those tool guides which have an integral gauge for measuring the required spacing between the guide and the tool cut in some cases may be readily used only for short cuts on narrow workpieces or must be held on the workpiece by hand. The present invention provides a saw guide which has an integral measuring gauge for locating the guide and an integral clamp which permits the guide to be quickly positioned and clamped on both narrow and wide workpieces.

Abstract: An jig for a hand-held saw having a powered blade includes a slotted trammel arm, one end of the arm being formed for fixably engaging a guide holder of the saw. A clamp assembly fixably locatable on the workpiece includes a frame having a planar, face member for contacting a face of the workpiece, a web member perpendicular to the face member for contacting an edge of the workpiece, the clamp assembly defining a pivot axis that is oriented perpendicular to the face member; a pivot member rotatably connected to the clamp assembly on the pivot axis and projecting from the face member opposite the a web member, the pivot member having a head portion and a shank portion that protrudes the slot of the arm.

Abstract: A cutting tool including a base having a workpiece support surface for supporting a workpiece and an annular, upwardly facing bearing surface. The cutting tool also includes a turntable mounted on the base for rotation about a generally vertical axis. The turntable has a workpiece support surface and an annular, downwardly facing bearing surface. A cutting unit is mounted on the turntable for movement therewith and an annular bearing is mounted between the first and second bearing surfaces. The cutting unit also includes a biasing mechanism for biasing the second surface toward the first surface so that the base workpiece support surface and the turntable workpiece support surface form a smooth continuous upper surface beneath the cutting unit.