Abstract: A holding device or lock in a machining vise for positioning plates including parallels and angles wherein the positioning plate is provided with a cleat extending from the rear surface along the bottom edge thereof. The plates are held in place by spring loaded engaging members. A recess in the machining vise, complementary in shape to the cleat, may be provided.

Abstract: The present invention relates to an universal clamping device with multi-purpose clamping surfaces, it is composed of a jaw and one or more jaw seats. Wherein the jaw comprises a plurality of vertical jaw seats and each of said jaw seat comprises a vertical curve wall and a horizontal bottom base, said vertical curve wall comprises an extension rib parallel to the bottom base, said horizontal bottom base comprises a piercing hole whch is relatively in the center of the extension rib. The jaw plate has various different vertical clamping surfaces, it comprises peripherally a ring groove corresponding to said extension rib and has a vertical bottom hole corresponding to the piercing hole of said jaw, the maximum radius of gyration of the jaw plate is smaller than the radius of the curve of vertical wall.

Abstract: In precision machining, a workpiece can be rapidly located with respect to three mutually perpendicular datum planes by positioning it within both a main machine vise and a supplemental machine vise held within the main machine vise, with the supplemental machine vise being one that has an overall length extending beyond the grip of the main machine vise, ground and polished planar side surfaces adapted to be positioned so that one of them is in contact with the substantially planar ground and polished bed surface of the main machine vise, and a ground and polished substantially planar base surface on the supplemental vise, which is adapted to be abutted, usually but not necessarily in a vertical position, against the working interior face of the fixed jaw of the main machine vise.

Abstract: Apparatus for use in fushion welding joints in a plastic pipe system comprising a heating device including a housing providing a rearwardly disposed pistol grip handle, a heating member secured in heat insulating relation to the housing in a forwardly extending position with respect to the pistol grip handle, a secondary handle structure detachably fixedly secured to a side of the housing at one end thereof and extending outwardly therefrom having an adjustable depth gauge on the outer end thereof for receiving the end of a plastic pipe and determining the depth to which the pipe end should be heated to fushion weld the same into a mating socket of a plastic fitting, a clamping device operable to be clamped in rounding engagement with the exterior periphery of the plastic pipe at a position inwardly of the depth thereof determined by the depth gauge, heatable socket and plug members detachably fixedly secured to the heating member for receiving in heat conducting relation a plastic pipe end and a mating socke

Abstract: A programmably controllable vise has mechanisms for automatic adjustment of orkpiece position relative to three orthogonal axes. The positions of the vise jaws (during clamping) establish workpiece position along a first axis, and stop members (e.g., piston actuated stops) selectively extendable from the jaws establish workpiece position along a second axis. Two levelling bars supported adjacent the jaws by respective servo-actuators (e.g., double-acting piston type actuators) which adjust the bars along the jaws establish workpiece position along the third axis, as well as workpiece tilt about the first and second axes. Because the adjustments may be made automatically, the vise may operate unattended, with workpieces being loaded and unloaded by a robot. The vise jaws preferably incorporate replaceable jaw elements which are constructed for attachment and removal by a robot and which may be machined to accommodate non-prismatic workpieces.

Abstract: A machine vise having a first jaw with a flat, inwardly disposed inner face, a second jaw with a flat, inwardly disposed inner face, opposing the inner face of the first jaw, a jaw plate carried by each jaw and including a block-like body with a flat face in bearing engagement with the inner face of the jaw and flat, inwardly disposed work-engaging surface, fasteners securing the body on the jaw, one or both of said jaws includes a vertically adjustable steady rest comprising an elongate, work-engaging bar adjacent to and extending laterally of the work-engaging surface, an elongate vertical through opening with opposing vertical sides in the body and opening at the face and work-engaging surface, a pair of elongate vertical wedges at the sides of the opening and having inwardly convergent opposing guide surfaces, a block fixed to the bar and having inwardly convergent faces slidably engaging the wedges, a retainer for the block and the wedges and an elongate vertical jack screw rotatably carried by the body

Abstract: A multiple segmented chuck jaw, operable for holding a workpiece while a work operation is being performed thereon, consisting of a first portion comprising a master and a second portion comprising an insert shaped to meet the requirements of a given application. The master and the shaped insert are each provided with cooperating dovetail means operable for detachably securing the master and the shaped insert together. The master is further provided with slot means operable to permit flexing of the master to increase the gripping force applied to the shaped insert, when the latter is secured in mounted relation to the master. Other inserts shaped to meet differing application requirements are also capable of being employed with the master without necessitating a modification in the construction of the latter. As a result of the multiple segmented construction of the chuck jaw, the master and the shaped insert are each capable of being hardened independently to increase the durability thereof.

Abstract: A machine vise having a first jaw with a flat, inwardly disposed inner face, a second jaw with a flat, inwardly disposed inner face opposing the inner face of the first jaw, a jaw plate carried by each jaw and including a block-like body with a flat face in bearing engagement with the inner face of the jaw and a flat, inwardly disposed work-engaging surface, fastener means securing the body on the jaw, one or both of said jaws includes a vertically adjustable steady rest comprising an elongate work-engaging bar adjacent to and extending laterally of said work-engaging surface, an elongate vertical guideway in the body and opening at the work-engaging surface, a guide block fixed to the bar and slidably engaged in said guideway and an elongate vertical jack screw carried by the body for free rotation and against axial movement and extending longitudinally through said guideway and threadedly engaged through said block.

Abstract: A screw-type lifting clamp comprising a generally U-shaped clamp body having a pair of spaced, opposed projections defining a generally vertically downwardly facing material receiving slot, a lifting shackle attached to said clamp body, a screw threadedly received through a first such body projection and being threadedly movable toward and away from the second body projection, a jaw pivotally mounted to the second body projection for pivotable movement about a horizontal axis perpendicular to the screw axis, and resilient means urging the jaw to a horizontal position. The pivotable jaw includes vertically spaced teeth defining a gripping surface which is convex in a vertical plane and has a radius of curvature greater than the horizontal distance between the jaw pivotal axis and the jaw gripping surface when that jaw is horizontal.

Abstract: A magnetic press for metal and woodworking vises in the form of a projection extending from but unattached to a flat plate to which magnetic tape is attached enabling the flat plate to adhere removably to a vise jaw. The flat plate contains magnets that repel other magnets fastened to a rigid plate that is attached to the projection with limited freedom of movement. The projection is provided with different caps and a base. When the vise jaws are drawn towards each other the repelling magnets are compressed exerting additional pressure on a workpiece by the projection. The workpiece is mounted on a small platform capable of magnetically adhering to the opposite jaw and sliding back when on the forward end of the projection.

Abstract: A pair of elongated jaw adapter members are provided for use in conjunction with a pair of jaw members relatively supported for movement toward and away from each other and including opposing serrated clamping surfaces and remote oppositely facing surfaces. The adapter members are removably abutted against and include remote serrated faces meshed with the serrated opposing surfaces of the jaw members. Each adapter member includes a bail member having a pair of generally parallel legs with a bight portion extending between and interconnecting a first pair of ends of the legs. The other pair of ends of the legs are pivotally anchored to opposite side portions of the corresponding adapter member for angular displacement relative thereto about an axis extending between the legs and the legs embracingly receive the corresponding jaw member therebetween.

Abstract: A horizontal base formed by intersecting plates rigidly connected to a vertical base of generally V-shaped cross-section; clamping flanges extended from the respective plates outwardly; a clamp member slidable over the respective flanges to act as backing for a fastening clamp threaded therethrough for holding a work in one of the V-shaped spaced formed by the intersecting plates; means being provided on the plates to hold a pipe or the like against turning in either direction when worked on; an adjusting cam on the horizontal base levels the vise on its support.