Abstract: A magnetic holder of a vise jaw that has a permanent magnet mounted in the jaw for holding metal or other magnetic material workpiece support parallels in position against the jaw clamping surface to properly hold the parallels during the clamping operation. The vise jaw can be used with a jaw plate that forms part of the jaw. The jaw plate has through holes or bores through which the mounting screws pass for bolting it to the main jaw and a bore for mounting the parallel retaining magnet. The jaw plates can be used either on fixed or movable jaws, or both.

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 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: 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 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 holding and storage apparatus for tape cassettes adapted to be attached to a door of a glove compartment of an automobile in a location so that a plurality of tape cassettes can be stored within the glove compartment. The apparatus is a metal extrusion having a generally flat base integral with a plurality of spaced parallel ribs providing grooves for accommodating the enlarged sections of tape cassettes. Lips on the outer edges of the ribs engage the top edges of the enlarged sections of the tape cassettes to hold the cassettes in the grooves between adjacent ribs. The ribs have stops that locate and limit longitudinal movement of the tape cassettes in the grooves. A modified tape cassette storage apparatus has a generally upright base integral with a platform attached to downwardly curved legs. A plurality of oppositely directed ribs are integral with the base to provide grooves for accommodating the enlarged sections of the tape cassettes.

Abstract: A precision machine tool vise includes a body having a stationary jaw and a movable jaw mounted thereon. An actuating nut, operated by an actuating screw, engages the movable jaw and shifts the movable jaw towards and away from the fixed jaw. A cylinder housing is mounted on the vise body and bears against the outer face of the fixed jaw. The actuating screw extends through the cylinder housing and has a piston mounted thereon which is positioned within the cylinder housing. A control valve controls the flow of fluid to the cylinder housing and when actuated shifts the piston and screw towards the movable jaw. The reaction forces resulting from forward movement of the piston are transmitted from the cylinder housing to the fixed jaw and thereby prevent deflection of the fixed jaw.

Abstract: A bolster table device for a punch press includes a reciprocable table positioned upon a support plate and movable along guideways. The support plate and table have inclined confronting planar surfaces which engage each other when the table is in a retracted position whereby the entire impact load exerted by the punch press is transferred to the support plate. The inclined confronting planar surfaces of the table and support plate are spaced from each other when the table is shifted towards and away from the retracted position. The bolster table is reciprocated by a closed hydraulic system which is operated by a driven cam device.