Abstract: A woodworking bridge has two base walls or components that enable the bridge to span an abutment or joint between two work pieces. A top surface enables a clamp to engage the bridge to permit the clamp to apply a clamping force to a first work piece and a second work piece on both sides of the joint and prevent the clamp from contacting the joint. This allows any adhesive that oozes from the joint to be cleaned without curing in the top surface and/or the bottom surface of the two work pieces. The work pieces may then be stained without any cured adhesive in the pores of the work pieces where stain is applied.

Abstract: The present invention relates to a bracket for holding metal bar at an angle for use in linear tracking technology to provide a v-bar oriented in a manner in order to track a v-wheel along its angled edge.

Abstract: A clamp comprising a bar supporting a movable jaw having a first support surface. The bar is slidably received in a jaw body and the jaw body supports a fixed jaw. A support is slidably disposed on the bar and has a second support surface that is coplanar with the first support surface such that the clamp can be supported on the first support surface and the second support surface on a surface. In one method of operating the clamp a work piece is positioned directly on the bar. In another method of operating the clamp the movable jaw is moved relative to the fixed jaw and is stopped by the engagement of the support with the body.

Abstract: An attachment for use with a clamp having a pair of jaws operable to clamp a workpiece therebetween, such attachment comprising a body member of such size as to be accommodated in a space between one of the jaws and the workpiece. The body member of the attachment has a first contact surface adapted to bear against a surface of the workpiece and a second, opposite contact surface adapted to bear against one of the jaws. The second contact surface is so configured as to enable the attachment body member to be substantially universally rockable relative to the jaw engaged by such attachment body member, thereby enabling the body member to occupy a position in engagement with and substantially parallel to that surface of the workpiece engaged by the attachment body member.

Abstract: An element (10) for use in a tooling system which comprises a plurality of elements arranged in an array, the elements of the array being movable between a closed position in which the elements contact one another and are secured in position, and an open position in which the elements of the array are spaced apart and are capable of vertical movement relative to one another is characterized in that the element comprises tagging means (8) providing the element with a unique identifier. The tagging means preferably comprises a radio frequency identification (RFID) tag.

Abstract: An attachment for use with a clamp having a pair of jaws operable to clamp a workpiece therebetween, such attachment comprising a body member of such size as to be accommodated in a space between one of the jaws and the workpiece. The body member of the attachment has a first contact surface adapted to bear against a surface of the workpiece and a second, opposite contact surface adapted to bear against one of the jaws. The second contact surface is so configured as to enable the attachment body member to be substantially universally rockable relative to the jaw engaged by such attachment body member, thereby enabling the body member to occupy a position in engagement with and substantially parallel to that surface of the workpiece engaged by the attachment body member.

Abstract: Retractable parallels are mounted in slots cut into the jaws of a machine vice. When parallels are retracted the vice is similar to a regular vice. When parallels are in the extended position, they are used to support the workpiece is a similar manner to traditional parallels. Multiple sets of retractable parallels can be used at different elevations.

Abstract: Support mechanism for supporting parallels in a vise that includes an elongated flat base member having a magnet mounted on the bottom thereof in conjunction with the springs, hold one of the parallels against the solid jaw of the vice. Each of a pair of arms pivotally mounted at one of its ends by pins are pivotally mounted in the opposing ends of the base member and are spring loaded by a pair of springs mounted in complementary recesses formed in and at either end of the base member and in the adjacent arm adjacent to the pins. The pair of torsional springs surrounding each of said pins and bearing against the wall surfaces of the recesses in the base member and the respective arms urge the base member against one of the parallels and urge the ends of the other arms against the other of the parallels securing the parallels to the jaws of the vice. The parallels serve to adjust the height of the work piece so as to perform a manufacturing procedure thereto.

Abstract: Methods and apparatuses for aligning the component parts of a drum assembly are disclosed. One aspect of the invention relates to tools for measuring and aligning the component parts of the drum assembly. By way of example, the tools may include indicator tools for measuring the relative position of the component parts, as well as alignment tools for aligning the component parts in accordance with the measurements. Another aspect of the invention relates to methods of measuring and aligning the component parts of the drum assembly. By way of example, some methods may pertain to aligning the upper drum and/or the drum support of the drum assembly.

Abstract: An auxiliary mechanism for a vise called a Vise Mate. This device features extender jaws to enable a person to hold larger than normal objects in a common shop vise. These extender jaws featured with a stabilizer bar permit a person to quickly expand the physical capacity of the shop vise with only the auxiliary vise mate and no additional set-up tools.

Abstract: An auxiliary mechanism for a vise called a Vise Mate. This device features extender jaws to enable a person to hold larger than normal objects in a common shop vise. These extender jaws featured with a stabilizer bar permit a person to quickly expand the physical capacity of the shop vise with only the auxiliary vise mate and no additional set-up tools.

Abstract: A power-actuated jaw is provided for a vise including first and second vise jaws. The actuated jaw includes a force transfer mechanism adapted for transferring a force from a linear actuator, such as a pneumatic piston-and-cylinder unit, through pivoting and sliding subassemblies. The sliding subassembly mounts a jaw contact member and pushes same between open/retracted and closed/extended positions. A compressed air source is connected to the piston-and-cylinder unit through a three-way valve for cycling the actuated jaw through load/unload cycles.

Abstract: A clamp apparatus comprises a toggle link mechanism which converts rectilinear motion of a rod member into rotary motion, an arm which is rotatable by a predetermined angle in accordance with a driving action of a cylinder section, and a lock mechanism which holds an unclamping state of the arm even when transmission of driving force of the cylinder section to the arm is cut off.

Abstract: A vice holdable mounting bracket for a bicycle stand is described, the bracket being adapted so as to be able to be held in a vise when in use, and removed when not. The bracket holds the bicycle stand away from the work surface on which the vice is mounted, providing clearance to work easily on a bicycle held by the stand. Other tools besides bicycle stands may be mounted on the bracket. The bracket may have a removable rotatable and vertically adjustable mounting assembly, which may be positioned through use of a clevis or other similar fastener for easy adjustment and removal.

Abstract: The present invention allows a user to attach a pair of pliers to a vise for holding an article. The vise includes at least one set of two receptacles. Each receptacle is designed and placed in correlation to the other said receptacle to hold one handle of a standard pair of pliers. As the vise jaws are adjusted, the pliers' jaws are also adjusted, thereby allowing an individual to quickly, securely, and safely hold an article while working on that article with both hands.

Abstract: A gripper or workpiece holder mounting bracket includes a center element and a pair of opposite end elements which are connectable to the center element via one or more fasteners. The mounting bracket defines a generally circular opening between the center element and one of the end elements and defines a second opening between the center element and other end element which has an arcuate or curved cross section, whereby a truncated spherical swivel member is pivotably secured therein when the bracket elements are secured together. The gripper or workpiece holder is pivotally secured within the generally circular opening, while the swivel member receives a generally cylindrical support structure therethrough. Adjustment of a clamping force at either or both of the openings of the mounting bracket may be accomplished via loosening of a single fastener.

Abstract: A vise stop for positioning a workpiece in a vise includes a crossbar having a first end, a second end and a mounting surface. The crossbar is attachable to the vise and a first stop arm is pivotally connected to the crossbar first end for positioning a workpiece along an X axis. In the preferred embodiment of the invention, a second stop arm is pivotally connected to the crossbar second end. A friction disc is compressively disposed between an inner face of both the first and second stop arms and the first and second ends of the crossbar. The friction disc allows the stop arm to be frictionally positionable and rotatable about its point of attachment to the crossbar end. The friction disc may be configured as a fiber washer, a spring washer or a compressible o-ring.

Abstract: An improved clip system is disclosed for holding parallels in place against the respective jaws of a vise head. The clip system comprises a pair of specially configured clip members adapted to releasably engage a notched slot formed along the side edges of the jaw on the rearward surface thereof, each slot being accessible for engagement through corresponding opening formed in the forward comers of the vise head. Each clip member is integrally formed having a hook section inwardly disposed at an intermediate position along its length to engage the notched slot in a forwardly direction and a cap section inwardly disposed at the forward end of the clip member to clamp flush against the parallel and hold it firmly against the jaw when the hook section is engaged with the notched slot.

Abstract: A laser processing fixture is formed to allow for facet processing of cleaved laser bars, either individually, or allowing for multiple bars to be processed simultaneously. The fixture holds the bars at a precisely-controlled distance with respect to a predefined reference plane, and holds the bars rigidly enough so as to minimize the possibility of vibration, but not so forcefully as to cause damage. The fixture comprises a fixed jaw and a movable jaw, with a pair of spaced-apart support members extending between the jaws. One or more laser bars may then be positioned between the jaws such that the front and rear facets will be exposed above and below the jaws. Therefore, each facet may be processed without unloading and re-loading the bars in the fixture. The support members, which may comprise a pair of wires, are spaced a sufficient distance so as to be disposed beyond the location of any active device region.

Abstract: An angle vise includes a plate having a plurality of identical apertures spaced from one another and at least one pivot aperture. A pivot pin is engageable within the pivot aperture for rotatably supporting an arm having a pivot bore for receiving the pivot pin. The arm includes at least one surface spaced from the pivot bore, such that the at least one surface supportingly aligns with at least one of the plurality of identical apertures in the plate when the arm is rotated about the pivot pin to a predetermined angular orientation. Preferably, the combination of the plurality of identical apertures in the plate and the at least one surface on the arm are spaced relative to one another a predetermined distance to define at most a 1° incremental angular adjustment about the pivot pin for the rotatable arm.

Abstract: A fixturing tool has an elongate body with a polygon cross section so as to define a plurality of sides. At least one annular groove extends around the circumference of the body thereby dividing each of the sides into a plurality of segments. At least one longitudinal groove extends across the plurality of segments which comprise one of the sides of the fixturing tool for retaining a work piece therein.

Abstract: An improved clip system is disclosed for holding parallels in place against the respective jaws of a vise. The clip system comprises a pair of specially configured clip members adapted to releasably engage a retaining plate mounted flush between the jaw and the vise, the retaining plate being formed having a slotted tab extended from either side of the plate for engaging a respective one of the clip members. Each clip member is integrally formed having a hook section inwardly disposed at an intermediate position along its length to engage the slotted tab in a forwardly direction and a cap section inwardly disposed at the forward end of the clip member to clamp flush against the parallel and hold it firmly against the jaw when the hook section is engaged with the slotted tab. The clip members are further formed each having an outwardly disposed leg section intended to deflect in a forward direction thereby releasing the clip member from engagement with the retaining plate and allowing removal of the parallel.

Abstract: A method and apparatus are provided for retaining parallels against vise jaws during the entire cycle of performing a machining operation. The subject method and apparatus apply sufficient forces at the places and angles necessary to avoid any flutter or movement of the parallels outwardly away from or transversely across the faces of their respective jaws. By use of the subject invention, the parallels are retained against the jaws of the vise over a range of jaw gaps from a very narrow gap to the maximum jaw gap of vises typically used in machine shops. Also, undesirable movement of the retaining apparatus relative to the vise and parallels is restricted. The apparatus has a low profile and is located in the space under the machining area so that it does not interfere with the machining operations, but if contacted by the machine tool, will be sacrificed rather than the more expensive tool.

Abstract: An apparatus is provided for retaining parallels against vise jaws during the entire cycle of performing a machining operation. The subject method and apparatus apply sufficient forces at the places and angles necessary to avoid any flutter or movement of the parallels outwardly away from or transversely across the faces of their respective jaws. By use of the subject invention, the parallels are retained against the jaws of the vise over a range of jaw gaps from a very narrow gap to the maximum jaw gap of vises typically used in machine shops. Also, undesirable movement of the retaining apparatus relative to the vise and parallels is restricted. The apparatus has a low profile and is located in the space under the machining area so that it does not interfere with the machining operations, but if contacted by the machine tool, will be sacrificed rather than the more expensive tool.

Abstract: An apparatus is provided for retaining parallels against vise jaws during the entire cycle of performing a machining operation. The subject method and apparatus apply sufficient forces at the places and angles necessary to avoid any flutter or movement of the parallels outwardly away from or transversely across the faces of their respective jaws. By use of the subject invention, the parallels are retained against the jaws of the vise over a range of jaw gaps from a very narrow gap to the maximum jaw gap of vises typically used in machine shops. Also, undesirable movement of the retaining apparatus relative to the vise and parallels is restricted. The apparatus has a low profile and is located in the space under the machining area so that it does not interfere with the machining operations, but if contacted by the machine tool, will be sacrificed rather than the more expensive tool.

Abstract: The portable clamp is used, for example, in making repairs to a product, such as a snowboard. The repair volume location of the snowboard is reworked to prepare this repair volume, i.e. a damaged portion of the product, to receive repairing materials. After their placement, a pressure distribution plate of this portable clamp is positioned over, and generally beyond, the repair volume location. Then a bottom clamp bar and a top clamp bar are positioned, respectively, under and over the snowboard. These clamp bars are thereafter drawn together by using the preliminary clamping fastener assemblies located at their respective ends. Then final clamping fastener assemblies, threadably positioned in the top clamp bar, in the central portion thereof, are tightened to continue the distribution of clamping forces to the pressure distribution plate.

Abstract: A pair of slide plates are vertically displaceably fixed to the opposed front surfaces of a fixed jaw and a movable jaw constituting a vice. An arbitrary number of presser members for pressing a work are fixed on the upper surfaces of the fixed jaw and the movable jaw. The work is placed on upper ends of the slide plates adjusted in height, and a pressure from setscrews of the presser members is applied to the upper surface of the work. Accordingly, even when the work is a thin plate-shaped work, it can be stably held to prevent possible vertical curving of the work.

Abstract: The disclosed fixture has a main clamping piece defining several differently sized smooth bores, the locations and sizes of which are selected to receive and hold different central mounting mechanisms of incompatible cutting tools, with the intended cutting edge on each cutting tool then spaced beyond and clear of the clamping piece. A stop is provided in accurate vertical registry with each bore, allowing the fixture to be secured to a grinder bed and located accurately relative to the grinding wheel, before the cutting tool is mounted thereon and any sharpening begins. Before being tightened down, the cutting tool can be rotated selectively in the fixture to accurately set where the grinding wheel will sharpen the cutting edge, and a second clamping piece then secures the cutting tool rigidly in the fixture. Special mounting pins cooperate respectively with the different cutting tool central mounting mechanisms to hold the different cutting tools relative to its proper fixture bore.

Abstract: A holder device for selectively positioning and retaining a pair of parallels at a selected position against the opposed jaws of a vise found on a milling machine, drill press or the like. The holder device includes stationary and movable retaining members in the form of flat plates and a guide arrangement for maintaining the retaining members parallel during movement between extended and retracted positions. The guide arrangement includes two parallel spaced inner tubes attached at adjacent ends to the stationary retaining member and extending perpendicular to the length of the inner tubes together with a pair of parallel spaced outer tubes attached at adjacent ends of the second retaining member and perpendicular thereto. The outer tubes telescope over the inner tubes to provide parallel positioning for the retaining members. A force applying or bias is provided in each of the inner tubes causing the two retaining members to move to a separated extended position of maximum spacing.

Abstract: A cycle bracket for transport of a cycle on a vehicle roof is provided with an anchorage strut secured to the vehicle roof and provided with two clamps which are adjustable to one another and which, by means of gripping members manufactured of a semi-rigid material, grasp about a frame tube in the cycle. The form of the gripping members is adjustable to the frame tube. In order to achieve simple and reliable adaptation of the gripping members, these include a jaw which is displaceable in the longitudinal direction of the clamp and which, together with an abutment fixedly disposed at the free end of the clamp, defines an accommodation space variable in both size and shape for the frame tube. Furthermore, the abutment portion is of one-piece manufacture with a flexible form-adapting member which is located between concave surfaces on the jaw and the frame tube.

Abstract: A means and method for accurately and securely holding workpieces between the jaws of a vise is disclosed. It consits of a system comprising a pair of three point parallels, either used alone, in pairs, or in predetermined arrangements with other devices, to securely clamp substantially any shaped workpiece against the fixed jaw of substantially any vise, in substantially any arrangement, including at selected angles.

Abstract: An apparatus for gripping objects comprising a first jaw having a first support member and a first support plate that is slidingly attached to the support member with respect to a first direction or motion. The apparatus is also comprised of a second jaw that has a second support member and a second surface plate attached to the second surface member. Additionally, the apparatus is comprised of a structure holding the first jaw and the second jaw such that the first jaw and the second jaw can move in a second direction toward or away from each other to grip or release the object, respectively. In a preferred embodiment, the second surface plate is fixedly attached to the second support member and the first direction is perpendicular to the second direction. The sliding action of the first support plate acts to reduce the effective frictional force between the object and jaws to facilitate stable grasping.

Abstract: An apparatus for gripping objects comprising a first jaw having a first support member and a first support plate that is slidingly attached to the support member with respect to a first direction or motion. The apparatus is also comprised of a second jaw that has a second support member and a second surface plate attached to the second surface member. Additionally, the apparatus is comprised of a structure holding the first jaw and the second jaw such that the first jaw and the second jaw can move in a second direction toward or away from each other to grip or release the object, respectively. In a preferred embodiment, the second surface plate is fixedly attached to the second support member and the first direction is perpendicular to the second direction. The sliding action of the first support plate acts to reduce the effective frictional force between the object and jaws to facilitate stable grasping.

Abstract: A multiple (infinite positions) position swivel ball mount with the swivel ball position clamp locked between two clampable base members that may be clamped toward each other between the jaws of a vise tightly on the swivel ball. Recesses are provided in each of the two clampable base members so that clamping force is exerted by the base members in opposite annular bands displaced from the opposite side center points of the swivel ball for enhanced positive clamping thereof when the clampable base members are tightened into position clamped engagement with the swivel ball. A projection from the swivel ball has an article mounting and holding fixture outer end and the two clampable base members together have an open channel permitting a greatly extended range of angled positions the swivel ball can be clamped in providing a greatly varied range of article mountings.

Abstract: The invention relates to a clamping device for the clamping of at least one piece of tooling, for instance an upper tooling or a press, which device comprises:two clamping jaws moveable towards and away from one another, between which the tooling can be clamped,pressure means, for instance at least one hydraulic cylinder for pressing the clamping jaws towards one another with force at energizing thereof, andat least one locking element present between the clamping jaws for co-action with an edge present on the tooling,such that the tooling in the absence of energizing of the pressure means can be pushed with at least one edge over the locking element, hook over the edge, and thus prevents the tool from falling,and is characterized in thata resilient strip, which is attached between the clamping jaws to one clamping jaw and which as a result of its own resilience lies in untensioned state at a distance from a pressure surface of this clamping jaw, whereby in the absence of energizing of the pressure means, the

Abstract: A clamping means for clamping a work piece with non-planar surfaces in a vise. The clamping means comprises two support blocks and three or four clamping members. Each clamping member has a stem portion and a collinear work piece engagement portion. The support blocks position the stem portions to define a plane tangent to the stem portions that is spaced from the support block and parallel to it. Jaws on the vise contact the stem portions directly on this plane, and not the support block. The tops of the support constitute a horizontal support for the work piece as the jaws are tightened to close the work piece engagement portions into clamping engagement at locations spaced about the periphery of the work piece.

Abstract: A clamping device comprising an elongate bar (1) a first abutment member (2) fixed in position on the elongate bar (1) and a second abutment member (3) slidably mounted on the elongate bar (1). A peg (12,17) carried by both the elongate bar (1) and the second abutment member (3) enables each to be secured to a respective jaw of a vice such that in use movement of the jaws of the vice relative to one another results in a corresponding movement of the two abutment members (2,3) relative to each other.

Abstract: An adjustable device for rigidly holding any one of several different types of automotive hydraulic system master cylinders during assembly, disassembly, testing, maintenance, bleeding, and repair procedures, and a method of using same is described. A drip pan is provided to catch drips emanating from a master cylinder being held, if desired.

Abstract: A universal angle V-block fixture enables machine operations to be performed on cylindrical work pieces at a variety of predetermined angles. The fixture includes two mirror symmetrical hepagonal blocks, each provided with a pair of V-grooves in opposed faces thereof. Each block has seven flat sides which intersect at various included angles. By positioning a cylindrical work piece in facing V-grooves of each block, the work piece may be oriented by turning the block to orient the longitudinal axis of the work piece at 0, 15, 30, 45, 60, and 90 degrees with respect to a horizontal reference. The V-groves in the opposed front and back faces of each block are formed of two different sizes for allowing a wide variety of different diameter work pieces to be clamped. The side faces of each block are provided with a central rectangular groove for providing an accurate flat surface for cooperation with work holding fixtures of various machine tools.

Abstract: A vise adapter for clamping in a bench vise or the like is provided for holding threaded objects. The adapter has a pair of parallel rectangular blocks arranged to slide from a closed position to an open position. The opposing faces of the blocks each have mating threaded essentially semi-cylindrical channels thereacross forming threaded openings when the faces are contiguous. A threaded object is placed in a channel of matching diameter and thread pitch, the blocks closed, and clamped for performing operations on the object.

Abstract: A cassette type part clamping member holding precision parts of small size to very close tolerances. The parts are clamped in a manner so that they are securely held but are not damaged. The cassette mounts relatively easily made, low cost, and useful reference bar for providing a reference surface against which the parts are clamped and also against which a sensor will operate during an operation such as grinding to insure that a straight grind cut is made. The cassette that holds the part clamping members and the reference bar, and a separate outer cassette holder fixture which provides reference surfaces for supporting the reference bar holding it in position accurately and without affecting the preload on the clamping members is mounted on the tool table. The cassette can be removed from and replaced into the holding fixture without releasing the parts.

Abstract: The present invention provides an accessory device for use between the jaws of a conventional milling machine or the like, and the accessory device includes two cooperating components. The first component includes a workpiece engaging surface and a sliding surface arranged in angular reaction thereto, and the second component also includes a sliding surface arranged in sliding abutment with the sliding surface of the first component, and a work engaging surface disposed in spaced parallel relation to the work engaging surface of the first component, whereby when the second component slides with respect to the first component, the work engaging surfaces can be moved together to hold a workpiece at a desired angle with respect to the cutting or grinding tool of the machine.

Abstract: An apparatus for clamping non-rotating work pieces which have an elongate portion or an elongate shank with polygonal, preferably square cross section, comprising a clamping body member with a hollow clamping chamber provided therein, which has a corresponding polygonal cross section. The chamber has at least one opening through which the work piece may be inserted. Clamping members are provided to clampingly fix the work piece in the clamping chamber. To define the position of the work piece at least in X- and Y-direction as well as with regard to its angular orientation, the clamping chamber is provided with a first web and a second web each projecting from a first inner side wall towards the interior of the clamping chamber and arranged in a certain distance from each other, and a third web projecting from a second, adjacent inner side wall towards the interior of the clamping chamber.

Abstract: Bicycle holding adapter for vises is composed of two generally rectangular blocks hinged together along their lower inner edges for swinging movement between an "open" position in which the opposed inner surfaces of the blocks are outwardly diverging from the hinge of the adapter. In their "closed" position, the inner surfaces of the two blocks are disposed in parallel at least partially abutting relationship. Each block is provided with a longitudinally extending recess extending from end-to-end thereof and located to register in opposed relation when the blocks are swung "closed" to form a cavity for gripping the tubular frame of a bicycle. The undersurfaces of each block are oppositely inclined upwardly at an acute angle so that the adapter assumes a normally "open" position. The inner surface of each block outwardly of the recess is relieved to provide an access opening into the cavity forming recesses.

Abstract: A vice jaw support apparatus provides a novel support system for securement of splined and threaded work pieces within vice grippers or jaws. In a preferred form, the apparatus is formed of a polyethylene or other similar resilient material. In a preferred form, the apparatus defines a pair of plastic bodies which are interconnected by integral web portions joining the two bodies on opposite sides. The web portions are disposed for deforming outwardly when the two body portions are moved towards each other within the vice jaws. Each body contains a flange portion whereby the apparatus may be supported on the upper surfaces of associated vice jaws.

Abstract: A unitary supporting member (integrally molded of urethane) is carried by a vise bar and is lodged between the vise bar and a wooden workpiece, thereby protecting the workpiece from being marred or scratched. The member is substantially homogeneous, is substantially devoid of internal reinforcements, and has a central recess having a plan outline corresponding substantially to a cross-section of the vise bar.

Abstract: The invention provides a clamping apparatus, particularly for receiving and clampingly retaining electrode body blanks having prismatic or circular cross section for erosive machining devices. A clamping block has at one of its surfaces an essentially centrally arranged clamping chamber to receive the electrode. Two adjacent walls of the clamping chamber are provided with clamping screws protruding into the clamping chamber. An approximately central position of the workpiece in the clamping chamber is achieved by the provision of distance plates with preselectable thickness, which are inserted into the clamping chamber between two walls thereof and the surface of the workpiece, before the workpiece is clamped by tightening the clamping screws. This clamping apparatus is inexpensive and rugged, so that the electrode, once machined and used, respectively, may always remain clamped and therefore may be used again with a very high precision as far as its position is concerned.

Abstract: A holder for a vise for releasably retaining a pair of parallels against the jaws of a vise. The holder includes a spring body having a pair of elongated sides interconnected by a spring band which causes the sides to be biased away from each other when the ends of the band are brought toward each other. The outer end of each side has an end member pivotally mounted thereon, each end member having a flat outer face for engagement with a respective parallel to urge the parallel against the jaw of a vise when the body is in the space between the vise jaws. The holder is manually handled to position the end members against the parallels and to remove the holder from the space between the jaws of the vise.

Abstract: A device for holding a saw chain during sharpening of the chain cutters which prevents wobble by gripping both the cutter train and the drive train of the saw chain.

Abstract: A crimping tool comprising a top plate, a parallel bottom plate, a rigid arm disposed between the plates and being affixed thereto, a movable arm positioned adjacent the rigid arm and having one end thereof pivotally mounted to the plates adjacent one end of the rigid arm, the rigid arm and the movable arm being positioned and formed so that their free ends comprise opposed crimping jaws for allowing the positioning of a portion of a circle clamp therebetween when the arms are in an open position, the top plate having a sufficient width so as to rest atop the open jaws of a bench vise when the crimping jaws are fully opened, the bottom plate having a width no greater than the combined widths of the arms in order to allow the jaws of the bench vise to close against the arms, a spring for holding the crimping jaws open for facilitating the positioning of a portion of a circle clamp therebetween, and an alignment bolt for holding the crimping tool within the jaws of the bench vise whereby the crimping jaws exten