Abstract: A key cutting machine for cutting a notch pattern on a key blank is disclosed. The key cutting machine comprises a pair of cutting heads and a clamp mechanism. Each cutting head includes a cutting wheel having an edge and an alignment structure mounted behind the cutting wheel. Each alignment structure has a key guide portion aligned tangent to the edge of a corresponding cutting wheel to engage and position a key blank laterally. The clamp mechanism is positioned between the cutting heads and is configured to hold the key blank stationary.

Abstract: An electrical connector comprises a plurality of conductive contacts arranged in a matrix pattern with a space left from one another and a conductive ground member disposed in the space. The ground member comprises a plurality of first ground plates and a plurality of second ground plates combined with the first ground plates. Each of the first ground plates has a plurality of first slit portions. Each of the second ground plates has a plurality of second slit portions. The contacts are received in one-to-one correspondence in a plurality of contact receiving portions defined by combining the first and the second ground plates in a lattice fashion in the state that the second and the first ground plates are inserted in the first and the second slit portions, respectively. Each of the first slit portions has at least one contacting portion contacted with the second ground plate inserted therein.

Abstract: Apparatus and method for carving a uniformly carved portion and a variably carved portion in a workpiece in a single pass. The apparatus consists of a uniform carving head fixed relative to the workpiece and a variable carving head that is movable simultaneously in two directions substantially perpendicular to the motion of the workpiece. A control system, which may include a programmable computer, controls the motion of the variable carving head.

Abstract: In a method for positioning engraving elements in an electronic engraving machine for a rotogravure printing cylinder engraving at least two adjacent lying engraving areas of selected widths by engraving with an engraving element respectively assigned thereto, axial reference positions are selected for the engraving elements whose axial distances to each other correspond to the selected widths of the engraving areas that are to be engraved. An electronic position measuring system formed essentially of a video camera and an image evaluation unit is successively placed on the axial reference positions. At each reference position, the axial divergence of the tip of the stylus pertaining to the appropriate engraving element or the divergence of at least one cup which is test engraved by the engraving element from the reference position is determined using the position measuring system.

Abstract: In a method for engraving printing cylinders for rotogravure in an electronic engraving machine, at least two engraving lanes with predetermined lane widths lying side-by-side in an axial direction of the printing cylinder are engraved with a respectively allocated engraving element. Before the engraving, an axial reference position is predetermined for each engraving element, the axial spacings thereof relative to one another corresponding to the predetermined lane widths of the engraving lanes. The engraving elements are roughly positioned to their reference positions. Subsequently, the axial spacing errors between the reference positions and the actual position of the engraving element the rough positions are measured. During engraving, the engraving elements are moved along the printing cylinder with the faulty spacings relative to one another caused by their rough positioning.

Abstract: A system for locating a plurality of engraving heads on an engraver wherein a plurality of engraving heads are automatically positioned into a predetermined configuration. A mechanism for positioning the engraving heads preferably includes a leadscrew and a drive nut which is rotatable relative to the leadscrew. In addition, each of the engraving heads preferably includes a rotatable drive nut with a respective motor for rotating the nut whereby the heads may be selectively positioned into a predetermined configuration. In a further aspect of the invention, the engraving heads are mounted on a carriage which is movable in an axial direction relative to a cylinder to be engraved. The heads are selectively positionable on the carriage and the carriage includes a nut threadably engaged with a leadscrew whereby the carriage may be driven in an axial direction relative to the cylinder to be engraved.

Abstract: A woodworking machine having first and second carriages controlled by a work handle to carry a cutting tool carrier in X-Y direction, which cutting tool carrier can be directly moved by the work handle in Z direction, a chucking slide and a workpiece retaining screw for holding a workpiece during horizontal operation mode, and a seat plate and an auxiliary chucking plate for holding a workpiece during vertical operation mode.

Abstract: This snow ski, the sides of which have an inclination which is variable in relation to the plane of the sole of the ski, at different points along its length, and are constituted by curved convex or concave lines, in which the profiles of the sides are of variable curvature according to the cross-section in question of the ski.A procedure for manufacturing this ski consists, starting from a rough ski, in carrying out the machining of the lateral parts of the ski with the aid of a rotary tool with an axis perpendicular to the plane of the upper surface of the ski, the active surface of which is generated by a continuous monotonic curve, by carrying out a relative movement of the tool and of the ski simultaneously, in the direction of the length of the ski, in the direction of the width of the ski and in a direction perpendicular to the plane of the upper surface of the ski.

Abstract: A boring, mortising, tenoning and duplicating woodworking machine including a horizontally movable workpiece support platform and vertically movable cutting tool support member. A tracing element is preferably mounted to the cutting tool support structure for tracing an object mounted to the workpiece support platform so that the object can be duplicated in the workpiece. A series of apertures are defined in the cutting tool support structure so that exhaust air from the engine can facilitate the removal of debris from the cutting tool/workpiece interface. Further a guard is provided for protecting the operator from flying wood chips and the like and wiper elements are mounted to wheels of the workpiece support platform to maintain the tracks of the workpiece support platform clear of wood chips and debris which would hinder the cutting operation.

Abstract: A duplicating router of the type in which a cutter unit provided with a motor and a cutter is fed vertically and horizontally with respect to a base. A cutter unit feeding screw rod is installed parallel with guide bars and rotates for operation on a vertical guide frame formed through framing left and right guides fitted movably up and down in elongated guide grooves provided on vertical guide plates fixed on both sides of the base and two parallel guide bars supporting the cutter unit for movement to the left and right, thus forming a screw feeding means. A link handle in a link motion is connected between the base and the left and right guides, thus forming a link feeding means. A template is fixed on upper portions of the vertical guide plates. A duplicating recessed groove is formed in the template in the direction orthogonal to an upper surface of the base.

Abstract: Multiple wood working machine having a base supporting a work bench having retaining members for the pieces to be worked and for a pattern piece, and an articulated parallelogram work frame carrying working tools for the pieces and a feeler member for the pattern piece.The work frame is constituted by two adjacent half-frames connected to the base and to an upper support structure by means of an articulated arm system including two symmetrical lateral linkages and a central linkage which is inverted relative to the lateral linkages.

Abstract: Apparatus for woodworking including boring, mortising, tenoning, forming dovetails, duplicating a three dimensional object, and the like. The invention embodies means for providing movement of a workpiece in a horizontal plane or X-Y direction, and means for providing vertical cutting tool movement.

Abstract: A carving machine which has a tubular framework that allows easy attachment of one or more supplemental frames and additional carving spindles to the base frame. The length of the machine frame also can be extended very easily to accommodate longer workpieces. The carver includes individual motors driving the carving tools. The motors are mounted in housings provided with vacuum attachments for inducing a flow of cooling air for the individual motors. The housings also are sound deadened to reduce the noise level.

Abstract: A carving machine which has universally movable multiple work spindles mounted on a frame, and movable along rails in a normal manner. The tracing station (the station which holds the pattern used in the carving operation) is located outboard of one lateral side of the rails, and outboard of the frame, so that a worker can easily trace on large patterns at the tracing station.