Abstract: This application describes clutch mechanisms for use in a steering control system, e.g., a steering control system used to steer a trolling motor for a boat. Such clutch mechanisms can reduce and avoid damage to the steering control system (e.g., a steering motor) when the system is subjected to unusually large impact loads (e.g., when the trolling motor or boat contacts an obstruction). The clutches described in this application can be used to decouple the steering control system from a steering shaft (or other drive mechanism) upon application of a large impact load, thus reducing damage to and increasing the lifespan of such system. In some cases, the clutch is a ball and spring mechanism. In other cases, the clutch is a slip tooth mechanism.

Abstract: Provided is a main spindle mechanism for a machine tool such that even in the case of a small-diameter spindle, it is possible to increase the torque transmitted to a large cutter and it is possible to prevent contact to and collisions with the workpiece. The main spindle mechanism, which is provided to a machine tool that cuts a workpiece by means of a cutter, is characterized by having: a spindle that transmits torque from the drive power source of the machine tool and is formed with outer teeth at the outer periphery of the tip thereof; a large cutter arbor provided with a shaft for attaching the large cutter and a base at which outer teeth are formed having the same diameter as the outer teeth of the spindle; and a gear-coupling-shaped sleeve that is provided in a manner so as to cover the base of the large cutter arbor and the tip of the spindle, and at which are formed inner teeth that mesh with both the outer teeth of the spindle and the outer teeth of the large cutter arbor.

Abstract: A cutting insert with a serrated topography includes a top surface terminating in a circular cutting edge, a bottom surface and a frusto-conical sidewall interconnecting the top surface and the bottom surface, and a plurality of serrations on the top surface uniformly disposed around the circular cutting edge and extending radially inward from the cutting edge in such a way that a bisector through each serration passes through a central axis of the cutting insert. The plurality of serrations are positioned in a cutting tool in such a way so as to reduce regenerative chatter during a cutting operation. A method of reducing generative chatter by positioning the cutting inserts in a particular fashion in a cutting tool is also disclosed.

Abstract: A piston pin hole boring system and method of forming pin holes therewith includes fixing a piston to a fixture supported by a slide member. Then, rotating a cutting member about a first axis and moving the slide member with the fixture thereon toward the cutting member along the first axis and bringing the piston into cutting contact with the cutting member. Further, moving the fixture along second and third axes, each extending transversely to the first axis and machining the desired pin hole contours in the piston with the cutting member.

Abstract: An arc surface milling machine includes a worktable, a base and a backup plate. The worktable is assembled adjacent to the base. The backup plate is adjustably mounted on the base and positioned adjacent to the worktable. The worktable includes a work surface, an opposite bottom surface, and a mounting end. The base is assembled to the mounting end of the worktable. The work surface defines a concave wedge-shaped receiving space adjacent to the mounting end and forms a milling opening communicating with the work surface and the mounting end.

Abstract: An edge milling cutter assembly for cutting opposite edges of a workpiece, has a first cutting assembly; a second cutting assembly positioned a predetermined distance from the first cutting assembly; a first guide roll assembly positioned in front of the first cutting assembly; a second guide wall assembly positioned in front of the second cutting assembly; wherein the first guide roll assembly and the second guide roll assembly are movable in relation to each other in equal distances; and a mechanism which engages the first guide roll assembly and the second guide roll assembly to facilitate equal movement of each of the guide rolls in such a manner that the first and second cutting assemblies cut equal amounts of material from opposite edges of the workpiece.

Abstract: A piston pin hole boring system and method of forming pin holes therewith includes fixing a piston to a fixture supported by a slide member. Then, rotating a cutting member about a first axis and moving the slide member with the fixture thereon toward the cutting member along the first axis and bringing the piston into cutting contact with the cutting member. Further, moving the fixture along second and third axes, each extending transversely to the first axis and machining the desired pin hole contours in the piston with the cutting member.

Abstract: A method for manufacturing LED light bars including steps: providing an LED light board comprising a first LED light bar, a second LED light bar and a connecting bridge interconnecting the first and second LED light bars; then providing a milling cutter and a retaining portion, wherein the milling cutter rotates and moves frontward to cut the connecting bridge along a side surface of the first LED light bar, and the retaining portion moves together with the milling cutter and keeps pressing against the side surface of the first LED light bar during cutting of the milling cutter to the connecting bridge. The retaining portion has a plurality of inhaling holes defined therein, which are used for sucking dust into the retaining portion during the cutting operation of the milling cutter to the connecting bridge.

Abstract: The present invention provides an apparatus (100) for forming circumferential grooves (14) in the exterior surface of a linear member (10), such as a tube. The grooves are formed by rotating a cylindrical cutting element (120) around the tube such that cutting means in the cylindrical cutting element form the grooves. One rotation of the cylindrical cutting element causes multiple grooves to be formed in the surface of the tubes.

Abstract: A method for stock-removal machining of a surface of a workpiece includes driving a carrier revolvingly about an axis so as to move at least one geometrically defined cutter disposed on the carrier via a receiver on a revolution path about the axis; and moving the cutter relative to the carrier during the machining, so that the cutter moves in a straight path relative to the surface of the workpiece.

Abstract: A cutting tool insert, particularly useful for machining of cast iron, comprising a body of a hard alloy of cemented carbide, cermet, ceramics, cubic boron nitride based material or high speed steel a hard and wear resistant coating; and at least (Al,Cr)2O3 layer applied to said body is disclosed. Methods of making a cutting tool insert are also disclosed. In addition, methods for machining of cast iron using the cutting tool inserts are disclosed.

Abstract: The present invention is directed to an insert, a slotting cutter assembly and a method for machining a plurality of slots in a metallic alloy part. The insert may comprise a cutting edge, at least one primary radius, at least two secondary radii and a clearance angle. The cutting edge may form a narrow outer end at a tip of the insert and a larger width region at a distance inward from the narrow outer end. The clearance angle may extend rearward from the cutting edge. The slotting cutter assembly may comprise a plurality of inserts and a cutter body. The cutter body may comprise a plurality of retaining slots and a plurality of support portions. The retaining slot may be configured to receive the insert. The support portion may provide support for the insert.

Abstract: An apparatus for making microlens molds and microlens array molds is described which utilizes a forming element having a rotating half radius diamond cutting member. A substrate is alignably arranged with the diamond cutting member so that the cutting member can mill a mold cavity in the substrate. The apparatus can be used to make high sag lens molds with high accuracy and a nearly 100% fill factor.

Abstract: An apparatus for making microlens molds and microlens array molds is described which utilizes a forming element having a rotating half radius diamond cutting member. A substrate is alignably arranged with the diamond cutting member so that the cutting member can mill a mold cavity in the substrate. The apparatus can be used to make high sag lens molds with high accuracy and a nearly 100% fill factor.

Abstract: A method for making microlens molds and microlens array molds is described which utilizes a spinning half radius diamond cutting member operated in a plunge cut in a technique similar to milling to cut the optical surface into a diamond turnable material. The method can be used to make high sag lens molds with high accuracy. Microlens array molds can be made with a high degree of uniformity and a nearly 100% fill factor.

Abstract: The invention relative to a device for machining workpieces comprising: a chip removing, rotating tool (2) configured substantially as a hollow body including at least one cutter (4), a portion of the tool adjoining the cutter (4) being penetrated by a chip receiving opening (6) for communicating chips into a tool cavity; and an exhaust means including a stationary exhaust housing (10) configured substantially as a hollow body communicating with the cavity (8) at least in part and in connection with at least one exhaust air source; the communicating portion of the exhaust housing (10) comprising in the region of the cutter (4) a chip communicating window (26) porting into an exhaust passage (36) of the exhaust housing (10); and the exhaust passage comprising in an exhaust passage section upstream of the chip communicating window (26), relative to the exhaust direction, at least one auxiliary air infeed opening. The invention relates furthermore to a method for machining workpieces by means of one such device.

Abstract: Apparatus and method for refurbishing damaged belting. The apparatus includes a frame with a conveyor system. A mechanism is attached to the frame for removing a desired amount of the belting surface as the belting moves relative to the frame on the conveyor system.

Abstract: In order to prevent an electrode tip 8 from being burred during dressing process, thereby attaining high quality and stability of the electrode tip, a tip dresser features a screw-threaded circumference 5 formed around the rotatable cutter holder 1 for securing a one- or two-piece formed cutter element 2, for permitting the holder 1 to be rotated in one direction A manually or by a suitable driver. Frusto-conical recesses are symmetrically formed in both sides of the holder 1 for receiving the electrode tips, allowing the cutter element 2 to be mounted so as to slightly extend by a predetermined amount beyond the conically recessed surface.

Abstract: A curved machining jig for machining a curved workpiece having an arcuate shaped centerline, the curved machining jig comprising a table having a rotatably mounted column extending perpendicular from the table, the column rotating on a first axis perpendicular to the table, an arm attached to and extending from the column, a drive portion on the arm, a tool attachment and a workpiece attachment supported above the table, the curved workpiece removably retained by the workpiece attachment, a machining tool on the tool attachment, a means for moving the drive arm causing the arm to rotate about the column engaging the workpiece and the machining tool to perform a curved machining operation on the workpiece.

Abstract: The invention relates to a feed device for machine tools with chuck arranged at the free end of a spindle, to which chuck the workpiece is fed axially through the inside of the spindle from the rear by means of compressed air from a compressed air nozzle through the spindle (1) into the chuck (2), having a tool station arranged in front of the head of the chuck and having a stop which comes in front of the head of the chuck (2) in synchronism with the machining for halting the movement of the individual workpiece (8). In order to increase the productivity, a brake member is arranged in the axial hollow (11) of the spindle (1) between the entrance end and the chuck (2).

Abstract: A hobbing accessory is disclosed for a vertical milling machine of a type comprising a column, a knee mounted to the column so as to be vertically positionable with respect to the column, a saddle mounted to the knee so as to be horizontally positionable with respect to the knee, toward and away from the column, a table mounted to the saddle so as to be horizontally positionable with respect to the saddle, in opposite directions across the column, a head projecting from the column, an arbor mounted operatively to the head and rotatable about a generally vertical axis, and a motor for rotating the arbor about the generally vertical axis.

Abstract: Apparatus and method for refurbishing damaged belting. The apparatus includes a frame with a conveyor system. A mechanism is attached to the frame for removing a desired amount of the belting surface as the belting moves relative to the frame on the conveyor system.

Abstract: An apparatus for deburring a cartridge inside and outside comprising a base plate having an upper surface and a lower surface adapted to be positioned on a work surface, an upstanding interior housing secured to the upper surface of the base plate interiorly at its edges to define therewithin a chamber, a motor located within the interior chamber with a power generating drive shaft extending therefrom to within the exterior chamber for rotation upon energization of the motor, a driven gear rotatable on a horizontal axis having external drive teeth on the periphery thereof, a pair of driven shafts mounted about parallel, horizontal axis above the motor and drive shaft and rotatably secured adjacent to their ends to the interior housing, a driven gear mounted on each driven shaft at a common elevation within the exterior housing above the motor and power shaft at laterally spaced locations, each driven gear being in driving engagement with the drive gear for counter rotating with respect to each other and a pai

Abstract: The apparatus is used for forming a diamond shape on ornamental chains (C) of variable width, and comprises a support having a slide guide flange (1A) with an intermediate gap (3) for the space required for the diamond-shaping tool (5), a shoe for lateral pressure against the support and, to serve as guide means acting along the edge (B1) of the chain opposite the edge (B) to be given a diamond shape, two pressers (14) acting independently on said edge (B1) adjacently to said gap (3).

Abstract: A table includes a support member having a work surface with an opening extending through the support member and the work surface. A first mechanism for mounting a router with the support member is provided. A router bit extends generally vertically through the opening and beyond the work surface. A second mechanism for mounting the router with the support member is provided so that the router bit extends generally parallel with the work surface. A mechanism for adjusting the dimension between the router bit and the work surface when the router is mounted with the second mechanism is also provided. The support member has a recess for receiving at least a portion of the router bit below the level of the work surface when the router is mounted with the second mechanism.

Abstract: A flexible tool holder for a burnishing cutter has a main body attachable to a rotatable member of an engraving machine, a tool holding element which is axially floatingly movable relative to the main body in an axial direction, and a spring which forces the tool holding element downwardly, so that during burnishing the tool holding element with the cutting tool connecting therewith moves up and down in response to surface irregularities of an engraving material.

Abstract: This invention relates to a process and an apparatus for cutting and trimming printed circuit board workpieces, particularly printed multilayer circuit board workpieces, which are cut to an exactly predetermined, selectable size at high speed in an operation in which the workpieces are subjected only to relatively low stresses. The workpieces are cut and trimmed and are profiled at each of their edges in a single operation. This is accomplished by means of two circular sawblades, which extend in a common plane and have interdigitating sawteeth, which preferably have diamond cutting edges. The interdigitating sawteeth of the two sawblades cut into the workpiece from opposite broadsides and the sawteeth of each of the sawblades penetrate into the workpiece only in part of its thickness.

Abstract: A bench type milling cutter includes a bearing block assembly which is a bearing block assembly which is carried by a carrier and which is linearly vertically adjustable relative to the carrier by means of a manual actuator. The carrier, in turn, is mounted on a slide for rotation relative to the slide within a vertical plane containing the tool axis, such rotation created by a manual actuator. The slide is movable horizontally relative to the work bench so that the tool may be displaced horizontally in relation to the workpiece.

Abstract: A milling tool adapted to be mounted upon an existing supporting frame for a coin box for the purpose of enlarging an existing slot or opening in the frame at a predetermined location. The tool includes a mounting element which is temporarily secured to the support frame on a first wall thereof, and a rotating tool, the operative end of which projects through the wall to engage a second wall at right angles thereto, the second wall having an existing opening to be englarged. The rotating part of the tool is pivoted about an axis perpendicular to the axis of rotation during operation to permit cutting of an accurately defined area.

Abstract: A method for machining bodies of revolution with the use of a rotary cutting tool, characterized in that the angle of the cutting edge of the tool and the distance between the tool's axis of rotation and the base plane are selected so that the difference between the distances from the cutting edge points to the axis of the machine tool centers is equal to or greater than the amount of elastic deformation of the material being machined. The cutting edge points are found in a plane extending through the machine tool centers axis and the tool nose, on the opposite sides of the axis of rotation of the tool.

Abstract: A cutter head system for a woodworking tool in which one or a plurality of discrete cutter segments may be mounted on a shaft of a selected length to form a cutter head for either a jointer, a planer or a molding cutter. Each segment has a plurality of slot portions spaced about its outer periphery and is adapted to be mounted on a shaft so that the slot portions of ganged segments form continuous slots which are substantially coextensive with the segments. A plurality of blade members are positioned within and are coextensive with the slots, wedge plates are positioned within the slots for releasably securing the blade members against the cutter segments, and mounting screws urge the wedge plates against the blade members. Sets of blade members and wedge plates of varying length are used which correspond in length to the length of the slots formed by the segments.

Abstract: A thermoplastic corrugated drainage tube comprising annular peaks and valleys and a plurality of drainage openings internally cut about the circumference of each valley, the openings in each valley aligned with the openings in successive valleys along helical lines described by said openings. The method of forming the drainage openings comprises placing a cutting tool in the interior of the tubing and rotating the tool while moving the tubing axially past the tool. The cutting tool comprises a body having a plurality of radially projecting cutters spaced equidistantly about the cutter body and means for rotating the tool.

Abstract: This machine cuts and profiles large panels, as plywood, hardboard or similar materials, on one side to provide a large panel having a flat back surface and a profiled front surface, said front surface characterized by a plurality of longitudinally extending, side by side, slightly inclined flat surfaces separated by approximately perpendicular ledges or shoulders of narrow width, thereby imparting to the panel the appearance of lap siding when applied to the exterior wall of a building. This machine comprises devices for moving the panel in a lengthwise direction and across a plurality of driven planer heads or routers, which cut away thin layers of the front panel surface. Also, the machine is provided with devices for shaping the edges of each panel for edge matching these edges with interfitting parts which may be of shiplap or tongue-and-groove type.

Abstract: A headstock of a panel cutting machine for cutting panels having a laminate, and particularly wood panels having a plastic laminate comprising, a conveyor for feeding a panel in a feed direction on a feed path, a rotatably mounted panel cutting device disposed in the feed path for cutting the panel and a rotatably mounted laminate cutting device disposed in the feed path in front of the panel cutting device in the feed direction and in alignment with the panel cutting device for cutting the laminate of the panel. A panel cutting drive is connected to the panel cutting device for rotating the panel cutting device and a laminate cutting drive is connected to the laminate cutting device for rotating the laminate cutting device in a direction opposite from the rotation of the panel cutting device and tangentially in the feed direction. A pressure device is connected to the laminate cutting device for biasing it downwardly at a selected pressure onto the panel.