A bail guard for use with arm- or wrist-braced slingshots is disclosed. The bail comprises a thin, slightly arcuate body having upper and lower channels disposed on opposing sides, each upper and lower channel separated by a groove formed therebetween. The channels are dimensioned to receive and fictionally engage the distal ends of the arm or wrist brace of a slingshot such that the bail guard can be securely and removably mounted to the arm or wrist brace of the slingshot.

A water balloon launching cannon is disclosed. The water balloon launching cannon includes a slotted barrel for rapid and easy loading and uses compressed air as the propelling force for firing the water balloon. Namely, the water balloon launching cannon includes an I-beam support upon which is mounted an air delivery system and the slotted barrel. For ease of disassembly, (1) the air delivery system includes quick-release mechanisms and (2) a plunger assembly inside the barrel is held by an easily removable pin. Further, a method of operating and a method using the water balloon launching cannon are disclosed.

An archery bow vibration dampening and balancing device is attachable to an archery bow by means of an elongated clamp with a housing pivotably interconnected to the elongated clamp opposite the attachment point. A vibration dampening and balancing device is secured in an opening formed in the housing.

An archery stabilizer which, by utilizing a carbon fiber tube or a comparable material in a tube configuration, provides for preloading the tube in compression, thereby effectively increasing the stiffness of the tube. The stabilizer includes weights, and the preloading of the tube compensates for the bending moment applied to the tube by the weights attached to the end of the tube or contained within the tube. In effect, the present invention presents an apparatus and method for loading the tube so as to allow a user to adjust the elastic modulus of the tube.

A vibration dampened barrel for a crossbow preferably includes at least two vibration dampening chambers, which extend at least a portion of a length of the vibration dampened barrel. The at least two vibration dampening chambers are at least partially filled with a vibration dampening material, such as silicone, rubber, low density foam, high density foam, or any other suitable material that absorbs noise and or vibration. The vibration dampening material is preferably applied by injection, compression, spray, pouring or any other suitable method. The vibration dampening material is retained in the at least two vibration dampening chambers by curing or hardening; mechanically confinement including the use of fasteners or a plug; or with any other suitable method. The at least two vibration dampening chambers may be partially or fully filled. The vibration dampening material may also be placed on a surface inside an extruded barrel.

A wood turning tool having first and second cutting edges and which is suitable for carving many different configurations of recesses from wood. The tool has a shank portion and a cutting head portion, the cutting head portion having first and second arcuate segments, the first and second arcuate segments generally lie in different planes, the cutting edges being located adjacent the point of merger of the first and second arcuate segments.

The invention relates to a high-precision revolving center (10) for machine tools. Prestressed bearings 40 and 45 are brought into abutment on the one hand against internal 33 and external 25 cylindrical surfaces whose deviation, at any point on the surface, with respect to the theoretical surfaces centered on the axis, is less than 1 μm, and on the other hand against reference surfaces 26 and 34 perpendicular to the axis. Threaded elements 50, 55 enable the bearings 40, 45 to be stressed. Once the center 10 has been assembled and the bearings stressed, the revolving center is mounted on a grinder in order to give a precision finish to the tip 90, the concentricity reference surface 91 and the perpendicularity reference surface 92.

A face-driver assembly and method for accurate coupling of a face driver with the spindle of a rotary-drive machining device. The assembly includes a face driver, a hub on the spindle defining a prealignment bore, a pair of self-centering coacting tooth sets on the hub and face driver, an engagement post extending into the hub and forming a prealignment shaft closely complementary to the prealignment bore, and a releasable coupling to hold and draw the engagement post rearwardly and thereby join the tooth sets in a manner facilitating final accurate centering.

A manually directed lathe tool system for removal of internally disposed material and creating a void inside a lathe turned form. As shown in FIG. 1, an articulated boring bar (32) of a tubular crosssection is slidably manipulated and supported by a plane surface (140) during a cutting action. To increase offset cutting ability several different lengths of a detachable and hinged arm assembly (40) are used. Arm assembly can be fixed or moved to three different positions relative to boring bar (FIG. 2) by manipulating a hand knob (36). A moveable and replaceable cutting tool (198) is held at the end of the arm assembly. A wall thickness caliper system (44) which ends in a tip (130) of some flexible material to allow operator appraisal of the internally disposed cutting tool's position. A back restraint assembly (141) is used to prevent the downward pitch of the boring bar's cutting end during material removal and consequent upward pitch of the opposite end of the boring bar, and especially during a highly leveraged cutting action. An outrider (38) attached to the boring bar prevents rotational movement of the tool relative to its longitudinal axis, especially during a leveraged offset cutting action. The outrider is able to be attached at several different locations on the boring bar and also serves as the support for the caliper system. Platform base (34B) is mounted rigidly to the lathe bed (30) and maintains platform assembly (34A) at a proper height. A precise wall thickness that mirrors the outside form can be achieved with this system. The system can be used to hollow-out forms not possible with previous practice. A narrow and restricted mouth opening does not hinder hollowing-out large diameters and deep forms. The operator is in control during all leveraged cutting actions and experiences minimal operator fatigue.

One preferred embodiment of the invention comprises a wood turning tool comprising a handle portion (1) and a cutting portion (2). The cutting portion comprises a blade (3) which has closed curve cutting edges. The tool comprises a deflector (14) for preventing the cutting portion from becoming blocked by wood shavings. The tool also comprises a blade cover (11) which can move across the blade (3) to regulate the cutting capacity of the tool. A threaded cylindrical member (12) can be manually operated to reversibly move the blade cover (11) across the blade (3).

A wood substitute turning blank and method of making the same is described. The turning blank includes a body having an outer shell of relatively low tensile strength material positioned about a rotational axis of the body. An inner core of relatively high tensile strength material is positioned along the rotational axis of the body. The high tensile strength of the inner core allows this turning blank to be turned at high speed on a lathe or the like. The high tensile strength of the core enhances the overall tensile strength of the finished product.

A positioning device for a driving shaft of a lathe chuck includes a casing, a motor received in the casing with a driving shaft of the motor extending through a first end and a second end of the casing, and a disk disposed to the first end of the casing and threadedly mounted to the driving shaft. The disk has at least one hole defined therethrough and the first end of the casing has a plurality of holes defined therethrough so that a pin is removably extending through the hole in the disk and received in one of the holes in the first end of the casing to position the driving shaft to which the lathe chuck is connected.

A copying cutting device for wood lathes including two securing stems, two form securing devices each transversely mounted at the bottom end of each securing stem, a guide track device mounted above the securing stems, a cutter mounting device having a cutter mounted thereon screwably provided at the bottom side of the guide track device, and a form tracing device screwably disposed at the rear end of the cutter. The forms securing device positions a copy, and a tracing rod of the form tracing device urges against the tracing edge of the copy. The cutter slides in the cutter mounting device, which in turn slides in the guide track device. The cutter cuts the workpiece following the contour of the copy with the help of the tracing rod.

A versatile lathe chuck characterized by a chuck body threaded on the inside for attachment to a lathe spindle and to receive at its work-turning end a variety of fittings and further characterized by a jam or locking screw which threads into the inside of the chuck to lock the insert in place.

A method of and apparatus for positioning and supporting any of several different elongated workpieces of circular, substantially square, or substantially non-square rectangular cross-sectional configuration so that a central workpiece axis is located along the same axis for any one of said workpieces includes a tailstock fixture for supporting one end of the workpiece which includes a frustoconical cavity that extends coaxial with the axis for receiving the one end of the workpiece, and a headstock fixture for supporting a second end of the workpiece opposite the first end which includes a generally cylindrical cavity extending coaxial with the axis and four equiangularly spaced workpiece engaging blades within the cylindrical cavity for engaging and supporting the second workpiece end.

An improved carving blank and mandrel for mounting the blank in a carving machine enables accurate carving of prosthetic and orthotic positive shapes. The blanks are simple to mount and dismount and means are provided enabling a repeatable mounting position in one angular orientation only to be achieved. The blanks are firmly fixed in place on the mandrel during the carving operation, and they are simple and inexpensive to manufacture thus reducing manufacturing costs while achieving high shape accuracy.

A machine for carving workpieces having substantially similar configurations generally including a base member, means disposed on the base member for retaining at least one workpiece thereon, means for rotationally indexing the workpiece disposed on the retaining means, about an axis, a working tool operatively engageable with a workpiece disposed between the retaining means, supported on the base member and displaceable along x, y and z axes pursuant to a programmed sequence of motions coordinated with the workpiece indexing means for shaping the workpiece in a selected configuration, and at least one means for successively positioning a plurality of similarly configured workpieces in a selected orientation including a support member, a jointed linkage supported on the base member, supporting the support member and manipulatable to position the support member into a support relationship with an initial one of the workpieces disposed in the selected orientation and held by the retaining means, means for fixing the interrelationship of the components of the linkage when the support member is positioned in the support relationship with the initial workpiece to place the positioning means in an operative condition and means for displacing the positioning means when in the operative condition between an operative position for supporting a sequential one of the workpieces in the selected orientation and an inoperative position.

A mechanism for clamping a banjo (10) toolrest or toolrest bracket to a lathe bed (51) which makes use of a sliding cam (40) which is actuated by a drive shaft (18). The cam is supported independently of the drive shaft by a support block (12) resting on a ledge (14) wich is formed in the base of the banjo. The cam is slidable with respect to the drive shaft along the length of this ledge on the banjo. This structure allows for sturdy clamping with minimal deflection at a predicable catching position along the length of the banjo rest. An eye bolt (20) is used to connect the cam to a clamping plate (22) which is positioned below two, spaced-apart rails (50) extending along the top of the lathe bed. The banjo rest has a generally open bottom (94) through which the shank of the eye bolt extends. Opposite ends of the drive shaft are rotatably supported by end walls (74, 76) of the banjo rest.

A machine for shaping curved wooden molding includes an arbor mounted on a housing for receiving a cylindrical workpiece formed from four lengths of curved molding blanks, a drive for rotating the arbor, and a pivot arm carrying a blade at the top end thereof for movement towards and away from a workpiece mounted on the arbor, whereby, when the top end of the pivot arm is rotated towards the arbor, the blade engages the rapidly rotating workpiece to shape the latter.

A saw for simultaneously cutting and beveling including a cut-off saw, a cutting blade, and a beveling blade. The cutting blade cuts simultaneously while the beveling blade bevels. The beveling blade preferably has a head with two faces annularly connected by an annular slanted circumference. The head has at least one notch suitable for accommodating a respective at least one tooth insert interconnected with a respective at least one cartridge. Each cartridge is interconnectable with a respective tooth insert.

A tailstock assembly mountable on a machine tool and cooperable with a headstock assembly for retaining a workpiece inbetween.

A miniature tenon cutter having an aluminum body and a flat cutter blade positioned adjacent to a throat having a funnel mouth utilizing a gauge to assist in establishing cutter blade position. The tenon cutter is used with an electric drill motor, and it forms a cylindrical tenon with a sloping shoulder.

The invention relates to methods for forming an emulsion explosive composition and to methods for sensitizing an emulsion explosive composition. The methods involve the in-situ expansion of organic microspheres during the formation of the emulsion explosive composition.

A lathe cutter and chip fan is described in which an annular frame includes a rotary portion that is driven to rotate about an axis. The rotary portion is annular, forming a workpiece receiving opening. A cutter is mounted on the rotary portion and projects into the workpiece receiving opening. The cutter rotates with the rotary portion to cut material from a workpiece positioned within the workpiece opening. A housing forms a compartment about the rotary portion and cutter, with a central housing opening substantially aligned with the workpiece receiving opening. A chip discharge openly communicates with the compartment and is situated substantially tangentially with respect to a rotational path of the cutter. A plurality of impellers are mounted to the rotary portion for rotation therewith. The impellers are configured to produce an airflow through the housing with intake air entering through the central housing opening and discharging through the chip discharge, whereby chips of workpiece material removed from the workpiece by the cutter may be discharged in the airflow through the chip discharge.

An automatic lathe is provided including a table stand having a top with a plurality of legs coupled thereto and extending downwardly therefrom. A pair of spindle spinning assemblies are positioned on the top of the table stand. Each spindle spinning assembly has a securement rod rotatably mounted thereon which is adapted to releasably secure to an end of a spindle for spinning the same. A carriage assembly is adapted to slide between each spindle spinning assembly. The carriage assembly has a blade mechanism mounted thereon for engaging a front surface of the spindle secured between the spindle assemblies. The carriage assembly further includes a carriage motor functioning to move the carriage in a forward direction upon the receipt of a forward signal and move the carriage in a reverse direction upon the receipt of a reverse signal only when the carriage motor is actuated. Finally, a reverse direction mechanism serves to transmit the forward signal to the carriage motor when the carriage is moving in a reverse direction and reaches a first end of the top of the table stand. Further, the reverse direction mechanism transmits the reverse signal to the carriage motor when the carriage is moving in a forward direction and reaches a second end of the top of the table stand.

A cutting tool for cutting a work piece and catching debris during turning operations is described herein. The cutting tool comprises a tubular cutting member having first and second ends, the first end having a sharpened edge, and a debris receiving means connected to the second end. The tubular cutting member may have a number of different cross-sections providing a number of different cutting tool configurations for use in turning operations. The debris receiving means may further include a flexible hose having a first hose end and a second hose end, wherein the first hose end is connected to the second end of said tubular cutting member. The hose may be connected to a vacuum source to more effectively collect debris generated during turning operations. The tubular cutting member could be made in a range of sizes from one quarter inch to two inches in diameter, with a nominal tube length of from three inches to twenty inches, or even larger where needed. Both ends of the tubular cutting member could be sharpened, and reversed in the holder when one end is dull.

A wood turning tool has an elongated handle with an end and a blade mounted to that end. The blade is formed as a plow with top and bottom surfaces and a working edge extending between those surfaces and having an apex. The working edge has an undercut ground bevel forming with the blade top surface a first cutting edge on one side of the apex and an overcut ground bevel forming with the blade bottom surface a second cutting edge on the other side of said apex, each bevel having a selected bevel angle.

A precision multi-purpose machining apparatus for facilitating lathing, milling, drilling, sawing or routing operations typically using a rotary-type cutting tool. In a preferred embodiment the multi-purpose machining apparatus of this invention is characterized by an elongated support frame and a cutting tool mount cradle which is adjustably mounted on the support frame for receiving a cutting tool, such as an electric-powered DREMEL (trademark) rotary cutting tool. The support frame is capable of resting in a horizontal position, in which the cutting tool can be fitted with a cutting tool bit and the frame fitted with alternative workstock mounting attachments, to facilitate various lathing operations on a wooden or aluminum workstock. Alternatively, a saw table and saw blade can be removably mounted on the horizontal support frame and the cutting tool becomes a saw motor, the rotating shaft of which is connected to the saw blade by means of a drive belt, to facilitate various sawing operations. In another application, the frame can be disposed in a vertical configuration, in which a rotary table is removably mounted on the support frame and the cutting tool fitted with a milling blade or drill bit to facilitate milling and drilling operations, respectively. Alternatively, a router table can be removably mounted on the vertical support frame or on the rotary table, and a router bit mounted in the cutting tool to facilitate router operations.

A wood-turning lathe includes a driven shaft mounted with a pulley unit having a plurality of angularly spaced retaining holes, a spring-biased pin and a cam member associated with both the pin and the pulley unit. When the cam member is moved to a locking position, the pin is urged by the cam member to engage a selected one of the retaining holes in the pulley unit to immobilize the pulley unit. When the cam member is moved to an unlocking position, the pin disengages from the selected one of the retaining holes in the pulley unit to permit rotation of the pulley unit.

A wood lathe includes a driving pulley unit disposed around a rotating inner rod, a driven pulley unit disposed around an output shaft that is used to rotate a workpiece, a V-belt unit trained on the driving and driven pulley units, and a speed-adjusting unit. When a rotary knob is rotated, amovable inner half of the driven pulley unit moves toward or away from a fixed outer half of the driven pulley unit so that the V-belt unit moves a movable outer half of the driving pulley unit away from or toward a fixed inner half of the driving pulley unit. As such, the position of the V-belt unit can be adjusted relative to the driving and driven pulley units to change the rotational speed of the output shaft.

A wood lathe includes first and second seats disposed respectively and fixedly on two ends of a table. A first driving device includes a motor disposed on the second seat, an outer tube fixed between the first and second seats, and a rotating inner rod journalled within the tube and connected to the motor by a belt and pulley unit. An output shaft is journalled on the first seat, and is provided with a fixed first clamping element. A second clamping element is disposed adjacent to the second seat so as to clamp a workpiece between the first and second clamping elements. A second driving device is disposed within the first seat, and interconnects the shaft and the rod to transfer rotation of the rod to the shaft, thereby rotating the workpiece.

The present invention consists of a lathe attachment for installation on a portable bandsaw mill, for turning round shafts from wood blocks on the portable bandsaw mill. The lathe attachment has an elongated chassis, a tailstock and a headstock mounted on opposite ends of the chassis for holding and rotating a wood block along the chassis. Bindings are provided to retain the chassis to the cross beams of the portable bandsaw mill. In another aspect of the invention, a number of symmetrical facets are firstly sawed along the wood block prior to turning the wood block. The turning of a round shaft on the bandsaw mill is preferably effected while the alignment of the wood block or shaft makes an acute angle with the direction of movement of the bandsaw head.

A wood lathe includes an axial moving unit with a movable seat, which is sleeved movably on a driving rod and a guide rod that are parallel to each other. A driving gear is disposed rotatably on the movable seat, and engages a gear-engaging member of the driving rod. When an actuator member is rotated, the gear rotates synchronously therewith so as to move the movable seat on the driving rod. A sample bar and a bar blank are held on a bed of the lathe. A blade is carried on the movable seat for cutting the bar blank. A tracing unit is disposed on the movable seat so that a groove pattern on the sample bar is traced mechanically and is duplicated on the bar blank.

A system and method allows visual programming of simultaneous and synchronous machining operations on multi-axis lathes. The system and method accounts for different combinations of simultaneous and synchronized lathe operations on the spindles which can utilize multiple tools. A graphic synchronization icon is assigned to each mode that preferably represents the lathe operation. Appropriate synchronous operations are grouped together in synchronization groups. The system and method are universal since a postprocessor processes the synchronization modes and synchronization groups, and translates them for use with computer programs understood by a particular CNC lathe.

An outer-side holding member (5) of a braking device (A) is fitted to the inner side of a large-diameter recessed portion (2g) in a rear portion of the inner side of a fishing-line winding barrel portion (2h) of a spool (2) in such a manner as to be prevented from rotating, and is prevented from coming off. An adjusting member 8 is provided at a distal end portion of the spool shaft for adjusting braking force of the braking device by relatively displacing an outer-side holding member (5) and the inner-side holding member (7) of the braking device in an axial direction.

A lathe attachment device is disclosed for producing long articles with complicated profiles. The device contains a beveled multi-teeth cutter driven to rotate in a direction opposite the rotation of a billet to ensure a very short period of contact time between an individual cutting tooth and the article. The cutter is slightly tilted towards the billet in both horizontal and vertical plane. The teeth of the cutter are shaped to each have a pointed end facing the rough part of the billet. Provisions are made to draw the cutter along the billet. The device allows producing a smooth finished long article with complicated surface profile in a single pass with high productivity. Due to limited contact time, it offers extended life of the cutter. The device is used most advantageously to produce long wood articles.

A cutting tool piece is provided including a rear portion and a lead portion, the lead portion including a front section having an upper side angled downwardly and forwardly and a lower side angled upwardly and forwardly to form a transverse lead cutting edge. The rear portion includes a hole to secure the tool piece to a cutting tool and transverse cutting edges extending outwardly from side walls of the front section. A system is also described for cutting a bowl by coring out an interior portion of a wood block by applying the cutting tool which is curved and rotatably mounted to a post. Its lead end with the tool piece attached creates a circular groove. The cutting tool is advanced on a path which curves toward the central axis of the lathe.

A concentric coaxial cutting machine which cuts cylinders, cylindroids or cones using a chain saw from a single larger object such as a wood tree trunk, a block of ice or a block of plastic. An embodiment of the invention comprises a transverse support member having directly or indirectly mounted thereon; a headstock member including; a headstock spindle member mounted to said headstock member including; a drive spindle rotationally mounted to said headstock spindle member and adapted to rotationally retain one end of an object to be centrically cut; a tailstock member including; a tailstock spindle member mounted to said tailstock member including; a tailstock spindle rotationally mounted to said tailstock spindle member and adapted to retain an opposite end of the object; a drive assembly in rotational communication with the drive spindle and adapted to rotate said drive spindle around a common axis with said tailstock spindle; and, a first chain saw variably aligned at an angle to said common axis and adapted to concentrically cut the object from at least the opposite end.

A hollowing system for a lathe having a tool rest. The hollowing system comprises a boring member, and a stabilization assembly. The boring member is adapted to support a tool such that at least one of the boring member and the tool extend past and engage the tool rest. The stabilization assembly is mountable adjacent to the lathe. The stabilization assembly supports the boring member such that the boring member extends generally parallel to a longitudinal axis of the lathe. The stabilization assembly has a vertical axis and a horizontal axis. The stabilization assembly is adapted to prevent downward movement of the tool when the stabilization assembly is mounted adjacent to the lathe and the tool is positioned on the tool rest. The stabilization assembly is provided with an articulation assembly. The articulation assembly supports the boring member and permits horizontal movement of the boring member about the vertical axis, while also permitting lateral movement of the boring member in a horizontal direction.

A cutting tool piece is provided including a rear portion and a lead portion, the lead portion including a front section having an upper side angled downwardly and forwardly and a lower side angled upwardly and forwardly to form a transverse lead cutting edge. The rear portion includes a hole to secure the tool piece to a cutting tool and transverse cutting edges extending outwardly from side walls of the front section. A system is also described for cutting a bowl by coring out an interior portion of a wood block by applying the cutting tool which is curved and rotatably mounted to a post. Its lead end with the tool piece attached creates a circular groove. The cutting tool is advanced on a path which curves toward the central axis of the lathe.

A woodturning tool for creating containers has a first rigid arm, and a second rigid arm. The first rigid arm has two ends with a cutting blade at the first end. The second rigid arm has two ends with a guiding device at the first end. The cutting blade and the guiding device are operatively aligned. The first and second rigid arms are adapted to move relative to one another.

Cutting assemblies are disclosed that include an entrance portion and a receiving portion, with the receiving portion defining a receiving opening configured to be axially aligned with an entrance opening of the entrance portion when mounted to the surface of a cutting apparatus. Cutting assemblies are also provided that include a material carriage configured to be borne by a cutting apparatus. Cutting assemblies that include a material receiving portion configured to be slidably mounted to a surface of a cutting apparatus are also disclosed. Cutting methods are also disclosed that can include rotating a piece of material around the materials longitudinal axis and delivering the material to a cutting tool while the longitudinal axis of the material is aligned substantially opposite the direction of rotation of the cutting tool.

A chuck (1) for angular offset woodturning including a first member (2) adapted to be secured to a lathe, and a second member (3) adapted to support a work piece and secured to the first member in such that the second member is oriented with respect to the first member between at least two configurations. The first member having a first axis (4) coaxial with an axis of rotation of the lathe and the second member having a second axis (5), and in one of the configurations the second axis is coaxial with the first axis, and in the other configuration the second axis is angularly offset. The chuck further includes a releasable fastening member (12) incorporating alignment members allowing the second member to be secured in one of the two configurations and that in the other configuration the second axis lies relative to said first axis at one of a number of predetermined angular offsets.

A way of making small, fragile, decorative handles on a lathe is disclosed along with tools for gluing pen-tubes into these handles is shown. Use of these tools and methods of use allows wood turners to avoid excessive rework and mess associated with the gluing process of making pen blanks while assuring better product due to more complete and uniform distribution of the adhesive layer.

Cutting assemblies are disclosed that include an entrance portion and a receiving portion, with the receiving portion defining a receiving opening configured to be axially aligned with an entrance opening of the entrance portion when mounted to the surface of a cutting apparatus. Cutting assemblies are also provided that include a material carriage configured to be borne by a cutting apparatus. Cutting assemblies that include a material receiving portion configured to be slidably mounted to a surface of a cutting apparatus are also disclosed. Cutting methods are also disclosed that can include rotating a piece of material around the materials longitudinal axis and delivering the material to a cutting tool while the longitudinal axis of the material is aligned substantially opposite the direction of rotation of the cutting tool.

A hand-held cutting tool for use in cutting a turning timber workpiece, the cutting tool including a handle end, a tool shank having a width and a height wherein the width is greater than the height, and a curved neck that includes a cutting head. The curved neck is integral to the tool shank and has a width and a height wherein the height is greater than the width. The tool shank defines a tool rest portion having a planar surface. The cutting head includes a top surface that is coplanar to the tool rest portion and defines a centrally disposed threaded bore for threadably receiving a replaceable carbide cutter. The cutting head and a length of the tool shank extend parallel to each other and parallel to a longitudinal axis.

A composite chair storage device includes a chair, a slide mechanism and an exercise module for storing a composite chair. A first roller and a second roller are embedded into two slide rails for performing linear displacement. With the assistance of a sliding third roller and a pressure element capable of turning over an exercise equipment of an exercise module, the exercise module can be stored into a containing space of the chair or unfolded from the containing space of the chair quickly and conveniently, to achieve the effect of folding and unfolding the composite chair effectively.

Disclosed is an apparatus and related methods for facilitating the application of a cutting tool to a work-piece rotating on the axis of a lathe.

A cutter head for surfacing a flitch, the cutter head including a shaft, a blade non-rotatably mounted on the shaft, wherein the flitch is surfaced by rotating the blade, a bushing including a bore, wherein the shaft runs through the bore, wherein a flange is eccentrically formed about the bore, a guide mounted on the flange of the bushing, wherein the flange axially offsets the guide with respect to the shaft, wherein the guide is arranged to support the cutter head against the flitch while the cutter head is surfacing the flitch, and wherein a radial distance between a tip of the blade and the guide determines a cutting depth of the cutter head, and wherein due to the guide being mounted on the eccentrically formed flange, the radial offset is determined based on a rotational orientation of the bushing about the shaft.

An embodiment of the invention provides a display panel, which includes a substrate having a pixel region and a peripheral region, a conducting layer overlying the substrate in the peripheral region, a first insulating layer overlying the conducting layer in the peripheral region, wherein a ratio between an area of the first insulating layer and an area of the conducting layer in the peripheral region is between about 0.27 and 0.99, a lower electrode layer overlying the first insulating layer, a second insulating layer overlying the lower electrode layer, and an upper electrode layer overlying the second insulating layer.