Abstract: A miter saw includes a base, a horizontal table supported by the base, an arm pivotably coupled to the base at a rear pivot point configured to permit the arm to pivot about a horizontal axis, a circular saw blade arbor supported by the arm at a location spaced forward from the rear pivot point, and a circular saw blade supported by and concentric with the arbor. The saw blade is configured to be driven to cut a workpiece on the horizontal table. The rear pivot point permits the blade to move along an arc in a vertical plane perpendicular to the horizontal table. Between a rear edge of the arbor and a rear edge of the blade, the arm extends substantially above the height of the blade to allow substantially the entire blade area rearward of the rear edge of the arbor to be available for cutting the workpiece.

Abstract: A saw system capable of cutting through a workpiece in one stroke is provided. The saw system includes a base, a turntable mounted on the base for rotation about a vertical axis, a support structure defining a cutting axis and fixedly attached to the turntable, and an elongated blade including a cutting edge. The turntable has a substantially planar support surface for supporting a workpiece. The support structure includes a pair of parallel sliding members, wherein the sliding members are disposed in a direction substantially parallel to the cutting axis. The elongated blade is spaced apart from the sliding members and is movable along the sliding members. The cutting edge includes a proximal end and a distal end, wherein an angle between an imaginary line connecting the distal end of the cutting edge to the proximal end thereof and its projection onto the turntable is an acute angle.

Abstract: A saw system capable of cutting through a workpiece in one stroke is provided. The saw system includes a base, a turntable mounted on the base for rotation about a vertical axis, a support structure defining a cutting axis and fixedly attached to the turntable, and an elongated blade including a cutting edge. The turntable has a substantially planar support surface for supporting a workpiece. The support structure includes a pair of parallel sliding members having proximal and distal ends. The saw system further includes a handle assembly coupled with a bearing member, which is mechanically engaged with the sliding members, and an elongated blade fixedly attached to the bearing member. The elongated blade includes a serrated cutting edge that is acutely angled relative to the support surface.

Abstract: A cutting tool for cutting building materials at a range of angles from vertical and/or horizontal and with an additional adjustment mechanism for adjusting the cutting angle up or down by a small angle. More specifically, this invention relates to a cutting tool including a base, a support surface, and a cutting platform, where the cutting platform can be set at a plurality of angles to the base including, but not limited to, angles of 22.5°, 30°, 45°, and 90°, and the support surface can be angled slightly up or down by a small amount, for example 1° or 2°, to slightly adjust an angle of the cut.

Abstract: A mitre cutting guide tool (1) comprises a first body section (2a) having a substantially planar outer face with an outer edge configured to rest against the face of a skirting board or coving to guide a cutting tool in use; a second body section (2b) rotationally connected to the first body section (2a) via a connecting means (5); a sensing means (9) configured to measure the angle between the first and second body sections (2a, 2b); a locking means (5) configured to connect the first and second body sections (2a, 2b) so that the angle can be altered and to lock the first and second body sections (2a, 2b) in position to set a given angle; the second body section (2b) supporting the first body section (2a) at the set angle against the length of skirting board or coving; the connecting means and/or locking means (5) configured so that the space between the first and second body sections (2a, 2b) is substantially unobstructed.

Abstract: A new and improved single tool or jig which is universally useable in connection with the fabrication or trimming of left and right side edge portions of stair tread components, left and right end portions of stair tread side edge plank components, and stair riser components, so as to permit all of such components to be properly mated together in order to impart to the exposed or open stair members a seamless finished appearance.

Abstract: A mitre box having a base and a saw holder assembly pivotally mounted for angular movement over the base. The saw holder assembly is adapted to hold a saw and is capable of being locked at a predetermined angular position over the base.

Abstract: A saw blade guide which can be attached directly to work piece and will guide a reciprocating blade or band saw blade at a predetermined angle through the work piece.

Abstract: A miter box is comprised of two incomplex components, namely, a base and a U-shaped guide member, which are assembled by engagement of a pivot post on the guide member within a passage extending normal to the surface of the table of the base. An assembly for clamping the workpiece against a fence member on the base consists of a lug that is engageable at each of numerous locations along the length of a channel for location proximate the fence, and a clamping piece that is rotatably mounted on the lug piece for being turned into clamping engagement with the workpiece.

Abstract: A carpenter's sawing machine that includes a base, an elongated saw support body, and a saw. The saw support body is pivotally attached to the base to change a first cutting angle of the saw. The saw is pivotally mounted in the saw support base to change a second cutting angle of the saw. The sawing machine is therefore capable of serving as a compound miter saw.

Abstract: A device for supporting a saw includes a board having one or more posts extending upward for slidably engaging with one or more frames and for allowing the frames to move up and down along the posts. The frames each includes one or more sleeves for slidably engaging with the saw and for allowing the saw to be slided relative to the frames and the posts. The board is rotatably secured to a base or to a work table and includes an angular graduation for indicating an angular position of the board relative to the base.

Abstract: A method and apparatus for cutting mults from a billet is described. The invention includes a rigid machine bed affixed to a horizontal mounting surface. A rotating headstock, capable of at least one speed is permanently mounted to the machine bed. The headstock has an opening through it capable of accommodating an elongated billet of a high-strength alloy. A pair of three-jaw chucks are removably attached to the front and rear faces of the rotating headstock for mounting of billets of regular cross-section. A pair of four-jaw chucks are removably attached to the front and rear faces of the rotating headstock for mounting of billets of irregular cross-section. An abrasive cut-off wheel is removably mounted to a rotating saw arbor. The saw arbor is pivotally mounted parallel to the axis of rotation of the headstock.

Abstract: An architectural millwork jig for the cutting of at least one cope in a strip of architectural millwork such as crown molding. The jig includes a base for stabilizing the millwork and further includes a table with a through opening positionable over the end face to be cut. A powered jig saw rides on the table about the opening, where the powered jig saw includes a foot for riding on the table and a blade reciprocating between two toes of the foot, and where the blade makes the cut in the end face of the millwork. The table is swingable about at least the x and y axes so as to provide a proper alignment for the surface of the table on which the foot of the powered jig saw rides. Swinging of the table about one axis permits one jig to be used for right hand and left hand copes and further permits the table to be adjusted to the exact angle of the right hand cope or to the exact angle of the left hand cope. Swinging about this one axis further permits the table to be swung into position to cope flat miters.

Abstract: An apparatus and method for electronically measuring a floor space area into which a floor covering is to be installed. A stylus is traced around the periphery of the floor space. The stylus emits signals which a controller decodes into electronic measurement data. The electronic measurement data is stored in memory. Data stored in memory is then transferred to an electronic cutting unit which uses the measurement data to generate commands for controlling a cutting tool to cut the floor covering to a predetermined size.

Abstract: A cutter plotter for drawing a roll type cutting sheet and cutting it, prevents bad influences accompanied with increasing of drawing resistance when drawing the roll type cutting sheet from a rolled part. If a feeding amount of the cutting sheet by a cutting order to be executed is over an amount already fed at that time, the cutting sheet is further fed in a Y-direction prior to execution of the cutting order for compensating said over amount.

Abstract: A cutting apparatus presses a wheel cutter against a ceramic plate for cutting it along a cutting line, and a controlling unit determines the total cutting length so as to increase the pressure against the ceramic plate together with the total cutting length, thereby keeping the depth of cutting trail constant.

Abstract: An adjustable sawing device includes a base having a hole and a plurality of protuberances equidistant from a center of the hole, a guiding frame including a U-shaped member having a plurality of holes engageable with the protuberances, and a saw slidably mounted on the guiding frame, whereby the saw can be conveniently adjusted in angular position as required.

Abstract: An apparatus for cutting any one of blocks and panels of cellular plastics into various shapes. The cellular plastic is held on a stationary platform around which a movable frame is affixed to two slides. The movable frame moves on two horizontal rails to effect cutting in the x-direction. Cutting is done with a hot wire affixed to two slides which move together vertically on vertical rails along the moveable frame to effect cutting in the y-direction. Stepping motors are driven by a computer to provide for displacement of the hot wire. Each motor includes a pinion which is mounted on a shaft directly engaging gear-racks parallel to the rails, to effect cutting of various shapes defined by the equation y=f(x).

Abstract: An improved saw assembly (30) includes a rotatable arbor (74) on which two or more saw blades (75) are mounted. The driving interface (96, 98) between the saw blades and the arbor permits the axis of rotation of the saw blades to be collinear with the arbor axis (90) or skewed a few degrees (94) in either direction. A saw blade positioning assembly (72) includes pairs of guide arms (84) which engage the sides (88) of the saw blades to position each saw blade at the proper location along the arbor and at the proper skew angle. The guide arms are moved in unison so that the axial position and the skew angle of each of the saw blades can be changed in unison before and during sawing operations.

Abstract: A cutting apparatus presses a wheel cutter against a ceramic plate for cutting it along a cutting line, and a controlling unit determines the total cutting length so as to increase the pressure against the ceramic plate together with the total cutting length, thereby keeping the depth of cutting trail constant.

Abstract: During a remaining time which is defined by excluding a positioning settling time t.sub.s and a cutting time interval t.sub.T during which a cutting edge is brought into contact with a stock from a period of time T allotted to a cutting operation which is determined by a preset length L.sub.0 and a stock running speed V.sub.A, the cutting edge maintains a speed difference .DELTA. which is as small as possible relative to V.sub.A during a fraction of the remaining time which is as long as possible. An acceleration which causes the speed difference .DELTA. is chosen to be as less as possible below a maximum acceleration which is demanded by the machine specification.

Abstract: The invention is a stator lamination jig system which comprises a centrally located spindle and a support for a stator lamination having a plurality of holes therein. The support is rotatively-mounted on the spindle for driving the lamination during a notching operation. A plate is included to secure the lamination on the support and a non-rotatable ejector is located below the support which has a lowered position and a raised position. An ejection cylinder is seated upon the ejector which is shaped and positioned to extend through holes in the support. The invention also comprises a cylinder connected to the ejector for driving the ejector. When the cylinder is actuated upwards, the ejector is in a raised position which urges the ejection cylinder through the holes in the support to cause the lamination to be released from the jig.

Abstract: An automatically controlled cutting machine for working on limp sheet material utilizes positive air pressure and vacuum to hold the material in place during a work operation. The level of the pressure is set or regulated with a pressure sensor to develop an appropriate holddown force and to minimize the disturbance to the material surrounding the work operation. The distribution of the airflow onto the sheet material for generating the pressure is also concentrated around the point of the work operation by an aperture plate.

Abstract: A sheet material 2 is cut with a round blade 10 and a notching blade 11. It is assumed that, in a straight section P1-P2-P3-P4, a distance between the end point P1 and the end point P2 is not shorter than a blade width W10 of the round blade 10, a distance between the end point P2 and the end point P3 and a distance between the end point P3 and the end point P4 are shorter than the blade width W10 and it is necessary to cut without cutting into a pattern piece indicated by shadow. A section between the end point P2 and the end point P3 can be cut without cutting into the pattern piece although overcut occurs on the end point P2 side, with the round blade 10 by aligning the leading edge thereof at the end point P3. A section between the end point P3 and the end point P4 is cut with the notching blade 11 because cutting with the round blade 10 causes a cut into the pattern piece at least from one of the end points.

Abstract: An automatic reconfigurable die having an array of knives, each of which is separately pivoted and extended along and about a respective longitudinal axis, to allow a desired contour to be scored and cut from a sheet material, according to a real time computer plan which is controlling the array of knives. The automatic reconfigurable die includes actuators associated with each knife to control, via information associated with a remote computer system, the extension and retraction, and orientation of the knives. The computer selects the appropriate setpoints for each knife in order to match the required shape/pattern of the cut by simple curve fitting methods. In this manner, a selected plurality of the knives in the array are chosen, oriented and extended in real time to score/cut the selected part.

Abstract: A compound miter box is provided wherein the saw guides are pivotable about a vertical and a horizontal axis. Each saw guide includes a retaining mount having a concave bearing surface defining a locating tab thereon. A saw supporting arm is pivotally mounted to the underside of the saw bench. The arm includes a plurality of tab receiving depressions therein. Each tab receiving depression corresponds to a predetermined angle between the saw guides and the saw bench. A user may then select and secure the locating tab in a tab receiving depression corresponding to the desired predetermined angle between the saw guides and the work supporting surface of the bench.

Abstract: A punch press ram drive is described in which a reversible electrical servo motor is coupled to a crankshaft having an eccentric journal driving a pitman arm connected to the ram. The electrical servo motor is operated by program controls so as to either cause rotation or oscillation of the crankshaft to drive the ram through various programmed stroking modes, in which punch position, velocity, acceleration, varying over the course of a stroke may be programmed.

Abstract: A saw equipment includes a working table, a rotary arm unit, a hacksaw, two guide units, two adjusting members, and two locking units. The rotary arm unit includes a rotary arm mounted pivotally on the working table, and two upright positioning plates respectively secured to two end portions of the rotary arm. Each of the positioning plates has a plurality of angularly equidistant engaging holes formed therein. The guide units are capable of holding and guiding the hacksaw. The adjusting members are connected respectively to the guide units. Each adjusting member has a lock block movably contacting a respective one of the positioning plates. Each lock block has an engaging nose projecting therefrom to engage removably and selectively one of the engaging holes of a corresponding one of the positioning plates for adjustment of an inclining angle of the hacksaw relative to a horizontal plane.

Abstract: An automated workstation is adapted to cut parts of different size and shape from workpieces of flat sheet or molded preforms. A fixtured workpiece is moved into the work area of a preprogrammed cutting robot on a shuttle table. The position of the workpiece to be cut is determined by the robot which cuts it using preprogrammed instructions for the desired part. In a preferred embodiment, a plurality of independently operable shuttle tables are provided so that the robot can work substantially continuously while workpieces are load, unloaded, machined or moved around.

Abstract: A saw equipment includes a working table, a rotary arm unit, two adjustment members, a lock unit, a hacksaw, and a guide unit. The rotary arm unit has a rotary arm mounted pivotally on the working table, and two positioning plates respectively secured to two ends of the rotary arm. Each of the positioning plates has several angularly equidistant engaging slots formed therein. Each of the adjusting members includes a lock block and two parallel rods extending upward from the lock block. Each of the lock blocks has several angularly equidistant engaging tongues which engage a first set of the engaging slots of the corresponding positioning plate. The lock unit locks the adjusting members releasably on the rotary arm unit. The guide unit is vertically movable on the adjusting members so as to guide the saw blade to reciprocate on the adjusting members along a straight path.

Abstract: A carpenter's saw designed for use in beveling the ends or edges to form a miter joint is disclosed. The saw comprises mainly a saw base and a saw support. The saw base includes a horizontal base face having a fan-shaped portion disposed at the center thereof. The saw support is fastened to the fan-shaped portion. A hacksaw is mounted on the saw support. The saw support comprises a suspension arm which is pivoted horizontally to the bottom of the fan-shaped portion. Two seats are separately arranged at both ends of the long axis of the suspension arm. Located on each of the two seats are arc-shaped recesses which have the same curvature radii. Two rotating members are lodged separately in the two arc-shaped recesses in order to rotate along the arc-shaped rails provided. Two support rods are vertically mounted on the rotating members for the hacksaw to be fastened thereon.

Abstract: A carpenter's workbench comprises a bench top having thereon a baffle, a suspension arm disposed pivotally under the bench top, and a pair of sawing supports fastened respectively to the two ends of the suspension arm. The axial center of the pivoting moment of the suspension arm is coplanar with the inner surface of the baffle. Each of the two ends of the suspension arm is provided with a receiving mount having a recess provided at the inner edge thereof with a plurality of receiving surfaces adjacent to one another. Each of the sawing supports has a retaining mount which is provided thereon with a plurality of support rods and with a plurality of restraining surfaces adjacent to one another and which is located at the outer edge thereof. The receiving surfaces and the restraining surfaces are similar in length and angles formed so as to permit each restraining mount to be received securely in the corresponding recess.

Abstract: In the bite-by-bite cutting of a length of sheet material split points for pattern pieces extending between adjacent bites are assigned to bite overlap regions containing sheet material capable of being cut at the cutting station either before or after a given advancement. A method is further given for optimally locating the split points within the bite overlap regions so as to best avoid problems caused by slit notches, V-notches, sharp corners or other discontinuities located close to the split points.

Abstract: An apparatus for processing workpieces, comprises a fixing deck, which has a supporting surface and is provided with fixing device, and a numerically controlled tool unit, which is movable over the supporting surface. In order to effect a reliable fixing of the workpieces by a simple and effective method, the fixing device comprises at least one holding-down unit, which includes a holding-down carriage, which is movable over the supporting surface, and a power-operable holding-down finger, which is operable at selectable locations, and that the carriage moving device and finger actuating device are adapted to be controlled in dependence on the control of the tool unit.

Abstract: In a method and apparatus for cutting sheet material wherein the material is cut in bites or segments by bringing in stepwise fashion successive lengthwise segments to a cutting station incomplete cutting of a line or pattern piece when the line or pattern piece is continued from one segment to another is avoided by a retracing of the line of cut in the vicinity of the line's or pattern piece's transition from one segment to another. Therefore, when the cutting tool, following the advancement of the material to bring a fresh segment to the cutting station, is returned to the vicinity of a previously cut point it retraces a portion of the previously cut line to promote complete separation of the desired material from the waste material despite possible relaxation or other shifting or mispositioning of the material between the times of the cutting tool's first and second arrivals at the transition point.

Abstract: In a method and apparatus for cutting a slit notch in a pattern piece during the cutting of the pattern piece from work material consisting of a single sheet or a lay-up of sheets of sheet material the slit notch is cut when a notch point is reached by the cutting tool in its cutting along the line defining the pattern piece periphery. After the slit notch is cut the tool is withdrawn from cutting engagement with the work material and returned to a point associated with a previously cut portion of the peripheral line and spaced rearwardly from the point of furthermost previous advance of the tool along the peripheral line before the cutting of the slit notch to assure the cutting of material which may shift in the vicinity of the point of furtherest advance between the tool's first and later appearance of at that point, thereby obtaining clean cutting of the pattern piece from the work material allowing it to be easily separated from the waste material.

Abstract: A punching device is provided which includes a plurality of punching units arranged in a side-by-side fashion on a substantially horizontal working surface. The device includes a plurality of punches and dies of different shaped, and a moving assembly, for supporting a holder frame, which moves a workpiece along both X- and Y-axes on a working table. A control unit is provided for inputting punching positions on the workpiece as well as the shape(s) of the holes to be punched, as well as for controlling operation of the moving assembly and punching units in response to inputted data, and for moving the punching positions of the workpiece below the desired punching units to perform punching operations. The punching units each comprises a substantially -shaped supporting member in which a piston is provided for moving a punch upwardly and downwardly. The punch is provided in one arm of the -shaped support member, with a corresponding die in a lower portion of the support member.

Abstract: A cutting apparatus for sheet-like materials comprises a traveling mechanism having a traveling support member movable above a sheet-like material, a cutting device hanged from the traveling support member of the traveling mechanism and movable in directions perpendicular to traveling directions of the traveling support member, a first detecting device for detecting positions of the cutting device in the traveling directions of the traveling support member, a second detecting device for detecting positions of the cutting device in directions perpendicular to the traveling directions of the traveling support member, and an arithmetic unit for arithmetically operating positions of the cutting device on co-ordinates with the aid of signals from the first and second detecting devices.

Abstract: An improvement to a stamping press having a blanking punch and die combination comprising a blanking die defining an opening, a cooperating blanking punch dimensioned closely to mate with the opening wherein the die edge defining the opening is radiused to cause metal flow, a stock engaging shedder displaceable within the die opening to engage and clamp stock, and a stripper encircling the blanking punch and displaceable therealong to remove surplus stock after a blanking operation. The improvement comprises the stripper being disposed to engage and clamp stock being punched by the blanking punch and die.

Abstract: A three-side cutting apparatus which cuts a carried-in book at its top, bottom and side.

Abstract: So that the path (BB, V1 to V7) for a rotable polygonal punching tool (WZ) can be determined easily, the workpiece contour (K), the dimension of the tool (x, y), the position of the axis of rotation (x/2, y/2) and the sense of direction of the machining are set by the operator into a numerical control (ST). An equidistant track (BB) is therefrom determined by the control (ST), such as is customary for milling operations. This track (BB), however, is corrected in the vicinity of corner of the workpiece contour (K) by the control (ST) in such a manner that punching optimized with respect to distance and time and with high contour fidelity is made possible.

Abstract: A board cut-off saw apparatus 10 is described for enabling cut-off saw operator to cross cut boards along their length to obtain usable wood pieces and to remove or discard defective sections. The apparatus 10 includes a plurality of cut-off saw lines 26 with manually activated cut-off saws for cutting the boards along each line. The length of the boards and the length of the cut wood pieces are measured while the board is being cut. Each cut-off saw line has an optical measuring system extending upstream and downstream for measuring the length of the boards 12 and cut wood pieces 24, respectively. The downstream optical sensors (photo) comprise a longitudinal row of closely assembled light emitting diodes 58 for sensing the length of the wood pieces with a measurement resolution of less than 1/4 of an inch. Each cut-off saw line 26 has a sorter for sorting the wood pieces according to their measured length.

Abstract: A portable miter guide device for chain and hand saws having a holding assembly (12) including a cradle member (18) and coacting clamps (36,38) for attaching the device to a work piece (W). The device includes a support arm (32) to which is attached an adjustment arm (14) for limited angular movement in a plane parallel to the work piece. Adjustably attached to the outer end of the adjustment arm (14) at an upstanding right angle is a saw guide member (16) with guide slot (80, 88, 90) for guiding chain and hand saws. The device can be attached to large wooden work pieces, the angle of cut chosen and a chain or hand saw (C, H) used to obtain an accurate square or compound cut in the work piece (W). In a second embodiment of the invention the adjustment arm (130) is fixed rather than being pivotal has a disc member (132) with support brackets (136,138) for pivotally supporting guide member (16).

Abstract: An apparatus for cutting at a bevel a piece presents a reference surface with respect to which the plane of cut must be inclined, by the desired angle.The apparatus comprises two parallel, vertical side elements in which are respectively provided two slots for guiding a saw blade, these two slots being parallel and opening in the edges of the side elements to define the plane of cut. Means are provided for connecting the two parallel, vertical side elements to maintain them at a distance from each other along a common transverse axis. A support is mounted on each side element so as to be orientable about the transverse axis and presents an upper bearing face. The two parallel, upper bearing faces define a bearing plane for the reference surface of the piece to be cut. Means are provided for blocking each support on the side element associated therewith so that its bearing face forms with the slot of the corresponding side element, an angle equal to the desired angle of cut.

Abstract: A mitre box system for cutting 90.degree. wall intersection compound angles on interior molding and similar trim without need to know the angle to be cut either before or after cutting, includes a base with upright slotted sides therealong and a rising bed pivotal upward about an end of the mitre box from a position parallel with the base to a position indicated by a linear scale on the end of the mitre box as being equal to a measured linear distance from the end of a level of length equal to the rising bed to a ceiling, one end of the level being for the measurement at the corner requiring the compound angle; each end of the mitre box has similar provisions and the base extends out at either end for clamping.

Abstract: A miter box comprising a base having a flat top surface and opposed parallel elongated side edges. A pair of spaced apart side walls extend from at least one of the side edges transversely above the flat top surface. The side walls have a flat inner surface to form right angle walls with the flat top surface. A saw blade guide mechanism is provided between the pairs of side walls. The mechanism comprises an arcuate guide means adjacent each of the side edges intermediate the pair of side walls and disposed on a circular axis having a common center point. The guide means have a diametrical pivotal base member pivotally secured on the center point below the flat top surface. Support guide means is secured to the pivotal base member and extends transversely above the flat top surface and displaceable along an arcuate path between each pair of side walls.

Abstract: An improved miter box allows crown molding to be cut in the same orientation in which it will be installed to assure a perfect mitered joint. The miter box holds a longitudinal workpiece so that it can be cut by a cutting apparatus at a first angle measured in a plane parallel to the longitudinal axis of the workpiece and at a second angle measured in a plane perpendicular to the longitudinal axis of the workpiece. The miter box has a base, a backboard mounted perpendicularly on one edge of the base, a cutting apparatus guide for guiding the cutting apparatus to cut the workpiece at the first angle, a first wedge apparatus mounted on the backboard having a lower surface at the second angle to the backboard, and a second wedge apparatus mounted on the base having an upper surface at the second angle to the backboard.