Abstract: Apparatus for enabling a tool (5) to reproduce a pattern from a template (11) on a workpiece (9), the apparatus comprising a first support mechanism (1) which supports the tool (5) in a spaced relationship with a pattern follower (7), a second support mechanism (3) which supports the template (11) and the workpiece (9) in a spaced relationship which one another, the first and second support mechanisms (1, 3) being brought together in use such that the pattern follower (7) overlies the pattern on the template (11) and the tool (5) overlies the workpiece (9), wherein the first support mechanism (1) and the second support mechanism (3) are not connected to one another. The movement of the pattern follower (7) as it follows the pattern on the template (11) produces an identical movement of the tool (5) over the workpiece (9).

Abstract: A router having a rotary bit is mounted on a table in a position to enable the bit to engage a workpiece on which is secured a template having a configuration corresponding to that to be duplicated on the workpiece. A template follower overlies and confronts the bit and has a socket in its lower end in which the tip of the bit may be accommodated to ensure that the bit and the follower are coaxial. The socket is defined by a side wall which is adapted to engage the edge of the template and thereby prevent engagement between the bit and the template.

Abstract: A tension reducer for a tension controller for use on a power tool such as an inverted router. The router has a drive motor, a motor driven pulley, a router bit-carrying spindle moveable between a lowered inoperative position and an raised cutting position, a drive belt for transferring rotational motion from the motor driven pulley to the spindle, and a drive belt tension control apparatus. The drive belt tension control apparatus includes a mount for mounting the motor driven pulley in continuously variable spaced-apart relation to the spindle during operation of the router and a pressure source for exerting a predetermined pressure on the motor driven pulley and thereby a predetermined tension on the drive belt during operation of the router for rotating the spindle. A tension reducer reduces the tension on the spindle during movement of the spindle between its lowered inoperative position and raised cutting positions for preventing tension-induced hesitation in the movement of the spindle.

Abstract: A copying machine has a sliding table slidable on a board. A pattern plate and a work piece are clamped on the sliding table by a clamping device. A cantilever arm is pivotally coupled on the board. A motor is fixed to the body. A casing is pivotally coupled to the arm by a pin. A shaft is rotatably supported on the casing and is driven by the motor via a belt. A roller and a tool are fixed to the shaft. When the tool contacts the work piece, the casing is caused to rotate away from the arm. The roller is caused to move gradually toward the pattern plate by a resilient force of the belt so that the tool can gradually machine the work piece and so that the tool will not be easily damaged.

Abstract: The present invention provides a device to be used in machines which mark workpieces with characters or other symbols and have marking tools for applying the symbols to the workpiece, and elements for selecting the symbols and controlling the movements of the tools to obtain a desired shape and size of the symbols. In the device of the present invention, a lower frame part (1) receives a workpiece (7), and an upper frame part (2) is arranged on the lower frame part. The upper frame is capable of being raised and lowered and supporting the marking tool (43) and the symbol selection and control elements (36-42, 47-52, 69-74) of the machine. During a marking operation, the upper frame part (2) is arranged to rest on the workpiece (7) and clamp it against the lower frame part (1). A marking tool can work on the workpiece through an opening (44) in the upper frame part (2) of the device.

Abstract: A trimmer apparatus and method for utilizing the same is presented which includes a cutting assembly formed from a quadrangular frame which is pivotally joined to a stand and a laminated object is moved therealong on a support in a lineal path whereby the edge of the laminate is trimmed to the contour of the substrate. The quandrangular cutting assembly frame allows the cutting blade to move in an arcuate path for trimming rounded ends of table tops or the like.

Abstract: An inverted router characterized by having a drive motor, a motor driven pulley, a spindle drive pulley and a drive belt for transferring power from the motor driven pulley to the spindle and drive belt tension control apparatus. The drive belt tension control apparatus comprises a mounting plate for mounting the motor driven pulley in variable spaced-apart relation to the spindle drive pulley and a pneumatic cylinder and piston assembly for exerting a predetermined pressure on the motor drive pulley and thereby a predetermined tension on the drive belt.

Abstract: An apparatus and method for forming a workpiece or chair mat with cleats on the underside thereof, and with a marginal peripheral area void of cleats, and for trimming the edge of a generally planar workpiece. A rotatable work table is provided for positioning the workpiece. A router head includes an inclined router blade engageable with the edge of the workpiece to form a beveled ramp edge thereabout. A template is positioned between the workpiece and the work table, and the router head has a cam follower engageable with and movable along the edge of the template for guiding the router blade along the edge of the workpiece during rotation of the work table. A cooling medium is directed toward the area of engagement between the router blade and the edge of the workpiece. The depth of cut is controlled by a cam disk mounted on the bottom of the router head engageable with the top of the workpiece.

Abstract: This invention relates to a tool support, particularly for a robot, of the type comprising two parts connected together by an assembly of elastic plates which, at rest, are disposed tangentially to a circle concentric to a reference axis of said robot with which the axis of the tool merges, and which, when working, enable that part of said support which bears the tool to move with respect to said reference axis, wherein each of said plates is connected to one of said parts of the tool support via a swivel joint assembly or the like and to the other of said parts via an articulation whose axis is at right angles to said reference axis. The invention is more particularly applicable to automatic machining with displacement of the tool parallel to itself.

Abstract: The shaft of a jet engine is reworked by removing the original plating, and the plating adjacent the oil hole in the shaft is removed by a hand grinding operation. The hand grinder includes means for supporting the grinding wheel with means for controlling the area and depth of the grinding.

Abstract: A router is coupled to a pair of pivotally connected arms for free swinging movement about a horizontal plane in a space between a template and a workpiece. The router has an upwardly extending guide pin that is engageable with the template and a downwardly extending cutting bit which is concentric to the guide pin and engageable with the workpiece below. The template is in parallel, opposed relationship to the workpiece such that as the guide pin is moved about the template, the cutting bit simultaneously mills the workpiece to produce the sign. In preferred forms, a mirror carried by the router reflects an image of the guide pin to the machine operator during engagement with the template, and the mirror is also located in disposition relative to the operator's line of sight toward the cutting bit such that both the bit and the guide pin may be simultaneously observed.

Abstract: A mechanism and control for mechanically moving a rotary metal removing tool such as a milling cutter or grinder in a path determined by a regular or irregular contour of a work part. The control is such that the tool may move at a constant feed rate or at a variable rate, for example, more slowly, in areas where a heavier cut is necessary. A contour cam controls the tool position and a second cam controls the feed rate in either a constant or variable velocity as determined by the workpiece.

Abstract: A pneumatically operated work support jig which selectively retains a workpiece in an aligned relationship with a template having at least one tool guiding slot therein so that the workpiece may be formed into a predetermined shape by a routing or other cutting tool which is positioned within and guided by the slot in the template. The jig or press is particularly adapted for use in a method of forming end splashes or vertical dividers for counter tops.

Abstract: A bevel and radius routing machine is disclosed with which edges are shaped and corners are rounded in a single machine cycle and which does not require any templates. The radii to be machined can be infinitely variable between 0 and 100 mm by means of simple work spindle adjustment, and no resetting of machine is required when workpiece dimensions are changed. The workpieces to be machined are made from wood, artificial wood, wood substitutes or the like. With the apparatus according to this invention the workpiece is fed past the cutter by means of rubber coated feed rollers and as soon as the position is reached at which the radius begins is swivelled through 90.degree. and then traversed to the next radius in a straight line.

Abstract: A slide and actuator mechanism for the vertical travel of the cutting tool on an Inverted pin routing machine. A slide that provides a rigid support for the cutting spindle and is durable, unaffected by wood dust, adjustable for exact alignment with top mounted guide pin, and inexpensive to manufacture. The actuator lever that moves said slide vertically by applying lifting pressure at the balance point so that the cantilevered motor mount will not cock or bind on the shaft that it rides and thus allows for gravity retract of the motorized cutting tool. Conventional shaft and bushing slides of this type use two shafts with two to four bushings riding on both shafts requiring the shafts to be in absolute perfect alignment to avoid tight spots and binding over the entire travel of the slide. Otherwise expensive alignment devices on the shafts are incorporated or extremely accurate machining methods are required, both of which would put the product price out of the range of the intended market.

Abstract: A device for support of a portable router above a work table so as to convert a portable router into a pin router assembly. The device includes a mounting plate which is directly attached to the base portion of the router. The mounting plate is formed integral with a support carriage assembly that is mounted in a housing assembly to permit the router to be smoothly and accurately positioned above the work table in preselected positions. A guide pin is carried in a block assembly that is received in the work table in a manner which permits the adjustment of the guide pin into alignment with the router chuck.

Abstract: A template device for guiding a cutting tool in cutting engagement with a surface of a work piece to provide ornamental design in the surface of the work piece.

Abstract: The present invention relates to follow-up control means in swinging-arm flame-cutting machines comprising a scanning element which is arranged at outer component arm of the swinging arm carrying the cutting torch, and in coaxial relation to the latter and which is advanced by drive means likewise arranged on the outer component arm to follow automatically the contour of a pattern having the configuration of a part to be cut from a workpiece.

Abstract: Apparatus for making the finishing cut on the internal outline of a rough cut female die has two carriages one sliding in one direction upon the other, and the other carriage sliding upon a base at right angles to the first. A male punch comprising a template of the outline to which the die is to be finish cut is mounted on one carriage and the die or workpiece is mounted in an indexing work holder on the other carriage. The template engages a tracer finger fixed relative to the base and to a hacksaw blade which finish cuts the die or workpiece by strokes with the plane of the blade perpendicular to the die surface being cut. The tracer and blade are in common planes to which one carriage moves perpendicularly and the other parallel. The cutter blade and tracer respectively engage the die or workpiece and punch or template in the same direction so that cutting action urges the template and tracer into engagement.

Abstract: A system for suspending a tool for horizontal movement with respect to a workpiece, wherein a carriage carrying said tool is slidably carried on a set of parallel rails, which are in turn slidably carried by a second set of parallel rails at right angles to the first set of rails, to allow motion of the tool along any path in a horizontal plane. The tool suspension system is disclosed in a sign cutting apparatus wherein a template and workpiece are mounted on a work table and the carriage includes a stylus for tracing a pattern on the template to be reproduced in the workpiece by movement of the tool utilizing the suspension system, which is independent of the work table.

Abstract: An improved bearing assembly for automatic shaping equipment wherein the bearing assembly includes a split cellar having a rotatable upper portion and a stationary lower portion, the upper portion receives a template thereon and moves in response to movement of the template. Bearings are disposed between the upper and lower portions.

Abstract: A routing machine for routing a non-linear groove in a flat extensive workpiece having a pattern in the form of a curved rib temporarily secured to the underside thereof. A reference roller in alignment with the routing tool engages a reference surface on the pattern while a cooperating roller is biased against the opposite surface, the rollers being driven so that the pattern is advanced to move the workpiece relative to the tool. The cooperating roller is mounted upon a table which is freely rotatable about the axis of the reference roller so that when the rollers encounter a portion of the pattern which changes direction, the cooperating roller is free to change its orientation with respect to the reference roller thereby enabling the workpiece to retain its initial orientation regardless of changes in direction taken by the pattern.

Abstract: An automatic profile-copying device to be used in conjunction with machine tools of the type wherein a profile carrying the workpieces is caused to advance by being drawn between a pair of rollers between which it is clamped. One of the rollers is coaxial with the working tool of the machine and is driven by a motor operated at an adjustable but constant speed, while the other roller is thrust against the first roller in a substantially elastic manner and is rotated at a variable speed.

Abstract: A flat, elongate workpiece such as a knitting-machine needle, stamped from sheet metal with a transverse lug whose narrow faces require precise machining, is clamped in a workpiece holder with its lug centered on an axis about which the workpiece holder and an associated tool mounting are relatively rotatable. The tool mounting includes two symmetrically positioned supports, carrying respective power-driven shaping tools such as grinding wheels or millers, which are limitedly movable in a plane including the axis and are interconnected by a tension spring drawing them toward each other. An interposed cam disk, engaged by rollers mounted on these supports, determines the extent to which the two shaping tools can approach the axis in machining respective lug faces during a relative rotation of up to 180.degree..