Abstract: A work stop for use on a machine vise is received in a jaw plate for such vise and is securely locked in position. The work stop is fixed in a groove that is machined into a top edge of the jaw plate or jaw, with a member extending over the edge of the jaw plate and adjacent the face of the jaw plate that is used for clamping, a workpiece. This permits the workpiece to be slid against the stop before being clamped. The jaw plate is removably mounted onto a fixed jaw, and is located precisely relative to the fixed jaw so that the jaw plate with the work stop attached can be removed, and then replaced when the same part is to be machined again.

Abstract: A universal vise that has a movable and a fixed jaw that can be indexed at 90.degree. increments to provide for four separate work clamping surfaces on each jaw. The vise includes a vise screw driving a nut that drives the movable jaw in each of four indexed positions of the movable jaw. The nut provides a down pressure load on the movable jaw with a very low profile. The indexable jaws permit the vise to be adapted to hold four different types of products or workpieces. The movable vise jaw is guided with keys that protrude above the plane of the guideway surfaces of the vise, so that the nut can have a shield rib that completely fills the space between the guideway surfaces to prevent chips from building up in a recess between the rails formed with present vise jaw nuts. The movable jaw and the fixed jaw do not protrude toward the base of the vise beyond the plane of the guideway surfaces on the vise rails.

Abstract: A work stop for use on a machine vise is received in a jaw plate for such vise and is securely locked in position. The work stop is fixed in a groove that is machined into a top edge of the jaw plate or jaw, with a member extending over the edge of the jaw plate and adjacent the face of the jaw plate that is used for clamping, a workpiece. This permits the workpiece to be slid against the stop before being clamped. The jaw plate is removably mounted onto a fixed jaw, and is located precisely relative to the fixed jaw so that the jaw plate with the work stop attached can be removed, and then replaced when the same part is to be machined again.

Abstract: A removable quick change jaw plate for a vise has a T-slot that receives a pull rod that extends into a bore formed in the vise. The pull rod is actuated to pull the jaw toward the vise. A wedge clamp, actuated by a threaded element provides a clamping motion to hold the jaw plate on the vise.

Abstract: A wedge lock workholder for holding workpieces on a machine tool table has a wedge block that has a bore positioned at an angle relative to the support for the wedge block. A wedge slide is slidably mounted in the bore. The angle of the bore provides lateral movement of the wedge slide as the wedge slide is moved along the bore in the wedge block. The wedge slide has a chip shield that slides in a slot in the wedge block to protect the bore opening from entry of chips, and which chip shield serves as a guide for positioning the wedge slide properly. The wedge slide carries a workpiece engaging jaw member at an upper portion thereof which exerts a lateral force on a workpiece to clamp the workpiece against a stop or other clamping member.

Abstract: A double vise using a single actuating screw with a self-setting preload arrangement includes a vise base, a center fixed jaw and a pair of movable jaws which are movable toward and away from the center fixed jaw. The movable jaws being actuated with the vise screw. The loads on the vise screw from the jaws being reacted initially by springs that apply a resilient preload against a workpiece in either one of the movable jaws. One jaw is driven with a sleeve rotatably mounted on a cylindrical section of the vise screw and driven through a load release clutch. The springs are mounted on a vise screw support housing that is slidably mounted on the vise base and which provides automatic adjustment of the vise jaws to clamp different size workpieces in the jaws. The sleeve has a threaded section for operating one of the jaws.

Abstract: A vise has a fixed jaw mounted stationarily relative to a vise body. A movable jaw is supported on side rails that have upper way surfaces. A jaw nut that exerts a downward force on the movable jaw operated to move the movable jaw along the way surfaces. Resilient member is provided between the under side of the movable jaw and at least one of the way surfaces to space the movable jaw slightly from the way surfaces until the movable jaw engages a workpiece, at which time the resilient material compresses and provides a positive hold down force on the workpiece.

Abstract: A guard ring having a center bore mounts on a face of a spindle of a machine tool having a taper socket drive, and a bore for receiving and driving a tool holder. A drive between the guard ring and the tool holder engages before a power drawbar of the machine tool spindle engages the tool holder. The guard ring is of an axial length such that the tool holder is within the center bore of the guard ring before the tool holder is driven by the power drawbar of the machine tool.

Abstract: A reversible jaw plate for a clamping device, such as a machine vise, has two substantially parallel, oppositely facing clamping faces. At least one mounting slot is formed in the jaw plate that opens to one edge of the jaw plate. The mounting slot has a center wide portion and two narrower slot portions opening to the two faces of the jaw plate. A head of a fastener is slid into a wider portion of the slot with the shank of the fastener extending out one of the narrow slot portions, to extend from a first of the two faces of the jaw. The second, opposite face may be used for clamping. The jaw plate can be reversed so that the shank of the fastener extends from the narrower slot in the other of the jaw plate faces, to permit using the first face for clamping. Either one of the jaw plate faces can be used for clamping a workpiece by reversing the jaw plate and having a reversible fastener in the mounting slot or slots to secure the jaw plate to a jaw or mounting member.

Abstract: A wedge workholding clamp has a clamp body that is adapted for mounting onto a table and is used for holding various objects, and specifically for holding piece parts in machining. The clamp body slidably mounts a movable jaw that is actuated with a wedge using a clamping screw. When a single jaw is actuated, the clamp body has one reaction surface that is square with the direction of clamping and parallel to the axis of the screw. The wedge has an end surface that engages and moves along the reaction surface of the clamp body as the wedge is tightened so there are no bending loads on the screw. The wedge also has a wedge surface that engages a surface of the movable jaw and which acts to move the movable jaw from a released position to a position clamping a workpiece.

Abstract: A device for holding a workpiece or part in a desired position. The device has a platen with a stop, a threaded shank actuator and a sliding clamping member. The actuator has a tapered head which engages an inner bearing surface of the sliding clamping member to simultaneously apply clamping forces against a workpiece and securing forces to anchor the sliding clamp member to the platen. A spring element joined to the clamping member retracts the clamping member away from the workpiece.

Abstract: The present invention provides an apparatus for forming a stationary vise jaw on a vise having improved deflection characteristics when loaded from a movable vise jaw. The apparatus comprises a block having a width defined by a vise jaw end surface facing the movable jaw and an end surface opposite the vise jaw end surface, and a height defined by an upper surface and a lower surface engaging a support surface of the vise. A channel is formed generally perpendicular to the width and within the block to open to the lower surface. The channel receives a member protruding from the support surface when the block is secured to the vise. A fastener such as a bolt secures the block to the support surface wherein the fastener is located between the channel and the vise jaw end surface at a distance along the width wherein a ratio between the distance from the vise jaw end surface to a reference axis of the fastener and the distance from the opposite end surface to the reference axis is greater than 0.

Abstract: A device for machining a plurality of workpieces. The device having a plurality of identical independent machining assemblies attached on a rotating carousel plate such that one operator can unload and load a workpiece at one machining assembly while the other machining assemblies are machining the workpiece therein such that when a machining assembly returns from rotation on the carousel plate it is finished machining.

Abstract: A rotary vane machine includes a rotor having one or more sliding vanes. The rotor rotates within a chamber of a housing. At least one sealing plate is located between an end surface of the rotor and a corresponding inner surface of the housing. The sealing plate improves the seal between the rotor surface and the inner housing surface.

Abstract: A vise for clamping a workpiece against a stop includes a base and a clamping member. The base contains a cylindrical sliding element having an inclined surface, which engages and aligns with a surface of another cylindrical element that is perpendicular to the first-mentioned element and located in an aperture in the clamping member. Angular engagement of the mating surfaces creates both clamping and holddown forces on the clamping member.

Abstract: A device for holding a workpiece or part in a desired position. The device has a platen with a stop, a threaded shank actuator and a sliding clamping member. The actuator has a tapered head which engages a conical bore of the sliding clamping member simultaneously to apply clamping forces against a workpiece and securing forces to anchor the sliding clamp member to the platen.

Abstract: In a milling machine or the like having a socket for a removable arbor having, a frictional engaging member is positioned around the removable arbor such that the frictional engaging member is positioned between the removable arbor and the spindle when the arbor is inserted into the spindle. A flange is positioned below the clamping member on the removable arbor to limit the downward motion of the clamping member and to communicate with the spindle to limit the inward placement of the arbor within the spindle. A sleeve connects the arbor to a drawbar and a drive collar engages the arbor with the spindle for rotation.

Abstract: A two-station, single action device has a body, with a fixed center block forming oppositely facing fixed jaws. At opposite ends of the body, movable jaws are moved toward and away from the fixed center block simultaneously using an actuator drive. The actuator drive has a longitudinal actuator axis and a first member joined to the first movable jaw and a second member joined to the second moveable jaw. A longitudinal power drive joined to the first and second members drives the first and second members in opposite axial directions to move the movable jaws simultaneously toward the fixed jaw. The first member and the second member further rotate about the longitudinal actuator axis in a first rotatable direction to move the movable jaws simultaneously toward the fixed jaw and rotate in a second rotatable direction to move the movable jaws simultaneously away from the fixed jaw.

Abstract: A machine vise that can serve multipurpose uses is constructed utilizing a cast base made so that it can be easily mounted for NC machining, or mounted on a swivel base, and can be used mounted on its sides or on one end. The cast base is made to simplify clamping to a tool table by providing an accessible ledge for clamping along the sides and ends. The ledge also provides a coolant drain trough. A support for the distal end of the vise screw is mounted to simplify manufacturing without losing precision operation. The same vise body can be adapted for use with interchangeable screws for manual operation of a movable jaw from either end of the vise or using a hydraulic actuator for clamping the movable jaw.