Abstract: The motorized clamp device includes a motor housing having a first channel. A first motor is movably positioned within the first channel. The first motor moves back and fourth within the first channel thereby increasing or decreasing the distance ‘d1’ between a first and second contact surface. The motor control switch actuates the first motor and is attached to the motor housing. The second contact is attached to the motor housing. The motorized capability of the motorized clamp device minimizes the manual adjustments that must be performed by the operator.

Abstract: A clamping device having a front member, a back member opposing the front member, a pair of opposing side members, a stop block and a clamping mechanism. The side members extend between and connect the front member and the back member. The work piece is supported by and between the side members. The stop block is interposed between the back member and the work piece. The clamping mechanism, which is operatively coupled between the front member and the work piece, exerts a clamping force against the work piece to press the work piece against the stop block. In this way, the work piece is clamped between the front member and the back member.

Abstract: A gripper which is structurally simple and can reliably and quickly grip small articles of various different shapes. The gripper has a base including a fixed portion and a movable portion movable longitudinally toward and away from the fixed portion, a first gripper portion provided on the fixed portion, a second gripper portion provided on the movable portion, and a moving/fixing mechanism for gripping a small article of an indefinite shape by moving the second gripper portion toward the first gripper portion.

Abstract: A clamping device having a front member, a back member opposing the front member, a pair of opposing side members, a stop block and a clamping mechanism. The side members extend between and connect the front member and the back member. The work piece is supported by and between the side members. The stop block is interposed between the back member and the work piece. The clamping mechanism, which is operatively coupled between the front member and the work piece, exerts a clamping force against the work piece to press the work piece against the stop block. In this way, the work piece is clamped between the front member and the back member.

Abstract: A system and method for securely clamping a target material that is to be manipulated using conventional machining techniques. The vise includes a single piece that includes a rigid jaw and a floating jaw that are integrally connected. The floating jaw is formed by a vertical and horizontal cut through a portion of the vise to enable the floating jaw to bend slightly in a hinge-like manner. A top portion of the rigid jaw and a top portion of the floating jaw are cut in a first pattern to form a working area. The size of the first pattern is approximately equal to the clamping surface of the target material. The size of the working area can be adjusted by securing devices that can expand the width of the working area to receive the target material and that can reduce the working area to securely clamp the target material. Additional cuts can be made in the vise to accommodate multiple target materials that can be secured independently.

Abstract: In accordance with the present invention, an improved clamping apparatus is employed. The clamping apparatus includes a clamp body having a first and a second end, an attachment member having a first and second end, the first end of the attachment member connected to the first end of the clamp body, a clamping member having a first end and a second end, the clamping member slidably connected to the second end of the clamp body, a locking mechanism for locking the clamping member, and a spring biasing the locking mechanism towards a locking position. Preferably, the clamping member includes a pad disposed at the second end of the clamping member. Further, the clamping member may include a knob disposed at the first end of the clamping member. The clamping member may be a threaded rod. In addition, the locking mechanism may include a locking button that engages the threaded rod. This locking button has an upper surface. This upper surface may abut the clamp body upon rotation of the threaded rod.

Abstract: A apparatus and method for moving and aligning objects such as machine components includes a plate positionable beneath and engageable with an object to be moved, a block engageable with the plate, and a bolt extending through a bore in the block. The bolt includes an end which is positionable adjacent to the object to be moved and which is rotatable within the bore to cause axial movement of the bolt. Such axial movement of the bolt causes the end of the bolt to push against the object to be moved and to thereby move the object.

Abstract: A measuring device including a gage having a dial, a pointer associated with the dial, and an actuator stem operatively coupled to the pointer; and a coupling mechanism having a connector portion detachably secured to the actuator stem; and a receiver portion defining a recess having first and second longitudinally extending, transversely spaced apart and parallel support surfaces. Also included is a probe pin disposed in the recess, the probe pin being longitudinally aligned with and supported by the first and second support surfaces; and a retainer mechanism exerting on the probe pin a force directed toward the first and second support surfaces. The coupling mechanism permits use of the gage with diametric gage pins selected from commercially available sets of such pins.

Abstract: In accordance with the present invention, an improved clamping apparatus is employed. The clamping apparatus includes a clamp body having a first and a second end, an attachment member having a first and second end, the first end of the attachment member connected to the first end of the clamp body, a clamping member having a first end and a second end, the clamping member slidably connected to the second end of the clamp body, a locking mechanism for locking the clamping member, and a spring biasing the locking mechanism towards a locking position. Preferably, the clamping member includes a pad disposed at the second end of the clamping member. Further, the clamping member may include a knob disposed at the first end of the clamping member. The clamping member may be a threaded rod. In addition, the locking mechanism may include a locking button that engages the threaded rod. This locking button has an upper surface. This upper surface may abut the clamp body upon rotation of the threaded rod.

Abstract: A blade changing tool for changing a table saw blade having a cutting blade. The table saw has a top surface and at least a portion of the blade is disposed above the top surface. The blade changing tool includes a housing having a top and two oppositely disposed sides defining a blade slot therebetween. The blade slot is dimensioned such that the slot can conceal at least a substantial portion of the blade edge disposed above the top surface of the table. A projection extends transversely from at least one of the sides to retain the housing from rotation relative to the table. The tool can include apparatus for retaining the blade against rotation relative to the housing.

Abstract: A workpiece clamp for holding a workpiece securely to a fixture block or work table during operations, such as machining and woodworking. The clamp includes a body and an insert, the insert having a contact face for applying force to the workpiece. The body preferably held in a cavity in the fixture block surface and the insert received in an inclined or angled recess in the body. The insert preferably includes a bore therethrough, such that a tension bolt can be inserted through the insert and into the body. Threads in the tension bolt can be engaged with threads in the body, drawing the insert along the inclined recess in the body, thereby applying tension to the tension bolt and applying downward and forward forces to the workpiece at the contact face. In one clamp, the body top is flush with or below the surface of the fixture block. In a preferred clamp, when the insert is fully inserted into the body, a small portion of the insert, including the contact face, extends above the fixture block surface.

Abstract: A workpiece holder includes a template and a pair of slide blocks mounted to the template for slideable movement with respect to the template. The slide blocks and the template can be mounted to a base plate or can be mounted to each other without the use of a base plate. The slide blocks include straight edge surface and L-shaped notched surface which can be reversed to accommodate templates and workpieces of varying shapes.

Abstract: The clamping device has two jaws between which a workpiece to be machined is immobilized on the table of a machine tool. Each jaw is supported by a carriage, and the carriages are coupled so as to move in a mirror symmetric fashion with respect to a plane orthogonal to the path of the carriages and at rest relative to the device. This avoids adding up tolerances of the shape of the workpiece with tolerance in the position of the clamping device relative to the machining tools.

Abstract: A vise assembly and a method of manufacture therefor includes a threaded feed screw rod having a clamp member at one end thereof and a manually graspable handle at the other end thereof. The feed screw rod is rotatably mounted in a vise mount. The vise mount includes a frame mount that includes a pair of laterally extending wing portions and a concave portion between the wing portions in which the feed screw rod is received. On the frame mount are included a pair of stepped frame members, each including a first portion fixed to a respective wing portion of the frame mount, and a second portion bent substantially orthogonal to the first portion thereof to define side portions on either side of the concave portion of the frame mount, the feed screw rod being further disposed therebetween. A vise lock handle is pivotably mounted between the second portions of the pair of stepped frame portions.

Abstract: In accordance with the present invention, an improved clamping apparatus is employed. The clamping apparatus includes a clamp body having a first and a second and, an attachment member having a first and second end, the first end of the attachment member connected to the first end of the clamp body, a clamping member having a first end and a second end, the clamping member slidably connected to the second end of the clamp body, a locking mechanism for locking the clamping member, and a spring biasing the locking mechanism towards a locking position. Preferably, the clamping member includes a pad disposed at the second end of the clamping member. Further, the clamping member may include a knob disposed at the first end of the clamping member. The clamping member may be a threaded rod. In addition, the locking mechanism may include a locking button that engages the threaded rod. This locking button has an upper surface. This upper surface may abut the clamp body upon rotation of the threaded rod.

Abstract: A clamping device capable of engaging a pipe jack for securing a work piece thereon. This device includes a yoke adopted to slidably engage a V-configured pipe jack and further having a threaded orifice contained therein. Contained within the threaded orifice is a threaded stem. A handle is attached to an upper distal end of the threaded stem. Pivotally attached to a lower distal end of the threaded stem is a head for engaging a work piece.

Abstract: A lightweight component holding system which is simple to use, and in which an irregularly component may be readily positioned and repositioned for light assembly or inspection is disclosed. The system comprises: a side assembly having an elongated base having opposite ends and having; a carriage laterally slidable and lockable on the base, said carriage having; an upright column rotatably and lockably mounted on the carriage, said column having; a slide vertically and lockably slidable on the column, said slide having; an advancing shaft having a front projecting end having a component holding means attached thereto. At least three, and preferably four side assemblies have their opposite end portions interconnected so that they together form a stable planar component holding system, having a base center opening. In a preferred embodiment the advancing shaft comprises a holding means screw having a turning wheel on a rear end portion thereof.

Abstract: The clamping device with a mechanical force amplifier comprises a threaded spindle (9) which can be screwed into a stationary nut and is connected rotationally fast with a housing (10) enclosing the force amplifier (13-16). A first clamping member (13) is arranged rotationally fast with, but slidable in, the housing (10) and a second clamping member (14) is arranged rotatably in the housing. A plurality of tightening pins (15) are arranged between the clamping members (13, 14). In between the second clamping member (14) and a drive shaft (28) there is arranged a planetary gear (30). Planetary gear (30) has a sun wheel (31) arranged on the drive shaft (28), an annulus is connected to the housing (10) and a carrier formed by the second clamping member (14). A spring-biased detent coupling (38) is provided between the housing (10) and the second clamping member (14).

Abstract: A clamping device having a front member, a back member opposing the front member, a pair of opposing side members, a stop block and a clamping mechanism. The side members extend between and connect the front member and the back member. The work piece is supported by and between the side members. The stop block is interposed between the back member and the work piece. The clamping mechanism, which is operatively coupled between the front member and the work piece, exerts a clamping force against the work piece to press the work piece against the stop block. In this way, the work piece is clamped between the front member and the back member.

Abstract: Tying vise for an artificial fly. The tying vise has a clamp for attachment to a support and, connected to the clamp, a gripping jaw unit for gripping a fishhook, wherein the gripping jaw unit is connected to the clamp across an articulated arm equipped with joints on both ends, and wherein the joints are placed, respectively, on a leg of the clamp and on the gripping jaw unit in such a way that the clamp, articulated arm, and gripping jaw unit can be collapsed into a compact transport position.

Abstract: A tool for mating, clamping, and gluing under high pressure, two picture frame members, the ends of which have been precisely cut prior to clamping. This high pressure produces a stronger joint than is now available in existing clamps that only hold the adjacent times while the glue is setting. It also produces a faster glue setting time than conventional clamps since excess glue is squeezed out, thus increasing clamp efficiency by making it available sooner for the next glue joint. In addition, it embodies an optional vertical clamp, which, in conjunction with a transparent triangular plate, applies a vertical pressure on members that may have been slightly warped or inaccurately cut. The triangular plate is optionally used with complex profiles to distribute the pressure. This combination results in a tight aesthetic joint. Existing clamps on the market do not embody this feature.

Abstract: A method of joining metal parts together and the joints thereby produced having great strength and thermal conductivity by means of an adhesive filled with small, hard, thermally conductive particles. The filled adhesive is applied to the surfaces to be joined and the surfaces are pressed together with a force in the range of 35 to 105 Kg/sq cm while the adhesive is curing. A fixture is disclosed made of a metal with a coefficient of thermal expansion less than the parts being joined. When the parts are held in the fixture and heated, differential thermal expansion causes the fixture to apply the necessary pressure during curing while also providing a measure of the applied pressure. For joining a cooling fin normal to the surface of a part, a tapered plug is formed in the fin edge and it is forced into a tapered slot in the part after adhesive application. A low external perpendicular force applied to the fin yields a high pressure to the mating surfaces through the inclined plane.

Abstract: A dolly includes an elongated rigid support member for receiving a lower end portion of a panel-shaped support leg of an upright piano. The support member is formed by an elongated bottom wall and a pair of side walls rigidly connected along opposite longitudinal side edges of the bottom wall and extending upwardly therefrom so as to define an elongated channel extending between the spaced side walls and above the bottom wall of the support member. The channel is open along its upper end to receive the lower end portion of the support leg of the upright piano. The dolly also includes a pair of carriages supporting the opposite ends of the support member.

Abstract: An apparatus for accurately setting the height and depth placement of electrical boxes on wall studs or the like. The apparatus telescopically extends to the required height and a plurality of steps are disposed upon both a top plate and base plate. The steps correspond to various wall covering thicknesses. Proper operation ensures accurate positioning and maintenance of the height and depth settings.

Abstract: A method and apparatus for cleaning eyeglasses is disclosed in which a holding device is provided with a clamp mechanism for mounting eyeglasses in the holding device in a manner which provides clear access to the lens surfaces of the eyeglasses. A cleaning and drying device is provided with a brush at one end for use in cleaning the lenses with soap while an absorbent material is mounted to the other end to dry the lenses after cleaning. The apparatus aids in cleaning the lenses in a manner that completely removes oil from the lens surfaces and prevents the oil from being smeared over the lenses.

Abstract: A multiple vise includes fixed jaws (7, 8) at the opposite ends of a vise body (1) and movable jaws (5, 6) located between the fixed jaws and cooperating therewith to provide two vises. The two movable jaws (5, 6) and thus the two vises are operated simultaneously by a two-part spindle (11, 12) with opposite screw threads (15, 16). A power amplifier (28, 29, 34) is provided between the spindle parts (11, 12) and, in the clamping position, urges the spindle parts away from each other.

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 clamp to hold a workpiece on a machine work table provides a body carrying an elongate fastening beam extending therefrom for adjustable positioning over a portion of the workpiece. The beam pivotally carries a vertically depending holder arm in a first outer end portion and is carried at a second inner end in the clamp body structure for both axial and vertically angulated motion. The clamp body is releasably fastenable to the machine work table and defines a vertically extending channel to receive the fastening beam. A vertically adjustable support pin extends horizontally through the channel to support the second beam end and the body carries a fastening screw depending into the channel spacedly distant toward the first support beam end to contact the medial portion of the support beam and create downward force thereon to hold a workpiece supported on the machine work table.

Abstract: An adjustable angle vice that is movably adjustable in four different directions or coordinates. The vice has an upper frame, including clamping faces carried thereby, that is carried by a base frame. The upper frame is pivotably joined to the base frame for pivotal movement of the upper frame in a pivotal direction. The upper frame is further joined to the base frame, so that the upper frame sliding moves relative to the base frame in a first horizontal direction. The base frame is rotatably carried by an upstanding rod, so that the vice, including the upper frame, may be rotationally moved in a rotational direction. The rod is slidingly joined to the base frame, so the the vice, including the upper frame may be slidingly moved in a second horizontal direction. Finally, rotational movement of the rod also vertically moves the upper frame in a vertical direction.

Abstract: In a beam or pipe clamp, each of a pair of clamp jaw extenders is loosely coupled to a basic clamp jaw member and threaded onto the beam of the clamp so that the extenders oppose each other, between the basic jaws. Extender form may be chosen to provide greater capacity in terms of a deeper thrust between the clamp jaws or accommodation for irregularly shaped workpieces or both. Fit of the extender on the beam controls extender alignment relative to the beam and ensures that, while the basic jaw member may receive axial clamping forces, "tipping" force imposed on the extender is transferred directly to the beam.

Abstract: A composite panel consists of a natural stone layer (1) and a reinforcing layer (13) that has a fibre layer (2) embedded in synthetic resin, and at least one layer (3) of synthetic resin. The fibre layer (2) serves as tensile reinforcement and the layer (3) of synthetic resin serves as compression reinforcement for the natural stone layer (1), so that the composite panel can absorb both positive and negative bending moments. The synthetic resin layer (3) is reinforced, for example, with a fine-mesh glass fibre textile (6) that faces towards the tensile reinforcing fibre layer (2) and an adjacent glass fibre mat (8). In order to produce the composite panels, natural stone panels that have been cut to a greater thickness are coated on both sides with the reinforcing layer (13). A plurality of coated natural stone panels are then arranged so as to be equally spaced on their center planes, and then simultaneously divided.

Abstract: A work holding device to support objects for the use of handicapped persons and, more particularly, persons haivng only one hand, the device being attachable to a wheelchair or similar supporting items upon which a handicapped person may sit or lie and it includes a housing upon or to which objects may be clamped for use by such person. The housing is attached for substantially universal adjustment upon the upper end of a post-like device which is attached to the wheelchair or the like. The device has clamping mechanism operated by a reversible electric motor powered by batteries and switches are included which selectively are actuated either by human breath blowing out or drawing inward for suction or by a switch actuated by a foot of the handicapped person. The device has a monitored and controlled clamping pressure.

Abstract: A kind of vise comprising a back jaw and a front jaw which are separately provided with a plurality of different jaw faces corresponding to one another for pinching different shapes of things or material, the faces are changeable in their position by turning for choosing the most proper one for pinching a thing to be worked on. A punch set on the screw is also able to punch a hole.

Abstract: A clamping apparatus comprises a clamping unit having a pair of clamping plates and clamping plate drive unit, and a fixing unit for fixing the clamping unit to an arbitrary position on a base frame. The clamping unit has a sub base to which one clamping plate and drive unit for driving the other plate are fixed. The drive unit has a leadscrew fixed at its one end to the other plate, and an outer cylindrical member rotatably provided on the sub base and holding the other end of the leadscrew. An inner cylindrical member and a piston are provided in the bore of the outer member. The inner member is threadably fitted over the other end of the leadscrew, and is rotated integrally with the outer one so as to move the leadscrew for a relatively long distance in the longitudinal direction.

Abstract: This invention is a power C-clamp apparatus having a main housing assembly; a power drive assembly mounted within the main housing assembly; a gear drive assembly movable by the power drive assembly; a C-clamp assembly having a movable clamp member axially movable by the gear drive assembly; and a power control assembly operable to selectively control and energize the power drive assembly. The power drive assembly includes a main motor assembly operable through an adjustable clutch assembly to drive the gear drive assembly. The gear drive assembly includes a drive gear member engageable with a driven gear member to selectively move the movable clamp member. The C-clamp assembly includes the movable clamp member and a plurality of interchangable clamp members to cooperate with the movable clamp member.

Abstract: A machine vice comprises an elasticity-adjustment rod secured to and penetrating one of two vertical portions of a subtantially U-shaped stress-transmission frame such that the one end of the frame is in contact with a vice head having a stationary jaw and a guide rail, whereby the flexing and strain of the stationary jaw resulting when a work is clamped between the stationary and movable jaws is compensated for, thus ensuring the perpendicularity of the stationary jaw with respect to the guide rail top surface and parallelness of the two jaws.

Abstract: A jig for bending a hockey stick blade is made of a backing plate and two spacers secured on one of its surface. The backing plate has two slots extending between the two spacers. A pressure plate located between the spacers is connected to the backing plate through the slots by a pair of threaded rods so as to slide along the slots. Tightening nuts are mounted on both rods. The hockey blade is adapted to abut on one side, at both end, against the spacers and on the other side of the blade, the pressure plate applies a pressure by tightening the nuts. The apex of the curve can be located anywhere along the blade and the plane of the face of the blade can also be tilted.

Abstract: The object of the invention is to provide a mechanical force actuator which is light weight and manipulatable and utilizes linear motion for push or pull forces while maintaining a constant overall length.The mechanical force producing mechanism comprises a linear actuator mechanism (22,23) and a linear motion shaft (11) mounted parallel to one another. The linear motion shaft (11) is connected to a stationary or fixed housing (12) and to a movable housing (26) where the movable housing (26) is mechanically actuated through actuator mechanism (22,26) by either manual means (21) or motor means (20). The housings (12,26) are adapted to releasably receive a variety of jaw or pulling elements (28) adapted for clamping or prying action. The stationary housing (12) is adapted to be pivotally mounted to permit an angular position of the housing to allow the tool to adapt to skewed interfaces. The actuator mechanisms (22,23) is operated by through a gear train (19) to obtain linear motion of the actuator mechanism.

Abstract: The fixing and guiding tooling for round parts comprises a clamping base (12) provided with inclined planes (1,2) cooperating with a clamping device which tilts and slides into an opening-guide (7) arranged so as to be capable of securing a certain number of parts (13) of different diameter and shape without modifying their axial positions with respect to the base; the clamping base may be coupled with a guiding tooling intended to maintain the round parts clamped and to guide the tools used for the mechanical operations carried out on the secured round parts.

Abstract: A reedmaking system is disclosed that includes a device for thickness sizing by sliding a cane segment along a guide surface past a cutting edge that is spaced apart from the guide surface a distance slightly greater than the thickness of a conventional finished reed. An adjacent length sizing tool on a common base member enables cutting to length with a blade spaced apart from a stop member a distance slightly greater than the length of a conventional finished reed. A separate hand held tapering tool includes a tapered bar on a handle for tapering by trimming to the taper of the bar as a rough reed blank is retained against the tapered bar with a single clamp member attached adjustably to the distal end of the tapered bar, while a duplicator mounted on a separate base member includes a cutting assembly with a follower that follows the shape of the pattern reed as a blade shaves the reed accordingly.

Abstract: A bench vise of the type having a fixed jaw and a movable jaw is provided wherein the movable jaw is a pivotable, adjustable jaw capable of utilizing a variety of angles of attack, thereby securely holding irregular as well as regular shaped workpieces. The bench vise is further formed having a flat fixed jaw and a forward anvil portion in order to provide a surface adequate to permit work to be performed thereon.

Abstract: At a base of a vise a U-shaped tie element is floatingly mounted in such way that a front leg portion thereof abuts aginst the rear inner face of a stationary clamping jaw. The area of contact between the front leg portion and the clamping jaw comprises the combination of a convex nose at the one part and a planar face at the other part. The tie element is supported by resilient means which are separated from the contact area. Thereby the tie element is self-adjusting and a uniform contact is gained along the whole width of the tie element. During clamping the front leg portion is pivoted with respect to the base section of the tie element, however, thanks to a rolling line contact at the stationary clamping jaw no forces are transmitted which would angularly displace the stationary clamping jaw.

Abstract: A rectilinear array of rods define a grid-like support such that work clamps may be selectively positioned about the top surface of the support and may be releasably anchored thereto by adjustable hooks extending through aperatures of the grid and grasping the undersides of the rods.

Abstract: This invention relates to an attachment for motion picture projectors to utilize stereoscopic film. The invention contains a quick mounting means to mount it on most standard theater projectors, a means to precisely adjust the attachment to the projector and internal adjusting means to accurately align and project stereoscopic images upon the theater screen. The invention is intended to be used by theater personnel who have no special training with stereoscopic film projection and to be used on most standard theater projectors without modifications.

Abstract: A workholding vise which comprises an elongated bottom plate and an elongated top plate. At least three legs are provided with structure for fixing the telescopic sections thereof in mutually fixed relationship. The apparatus includes structure for mounting the three legs at substantially equal distances from a common geometric axis of the structure for mounting. This structure for mounting allows pivotal motion with respect to the bottom plate. A first elongated jaw is mounted on the bottom plate. The first elongated jaw includes and elongated V-shaped open trough extending in the general direction of the elongation of the bottom plate and the first elongated jaw. The apparatus also includes a second elongated jaw also having an elongated V-shaped open trough in it. The apparatus includes structure for clamping the first and second jaws together.

Abstract: A vise for clamping a work piece to a workbench. One jaw of the vise is permanently mounted to the work piece and the other is carried by the threaded shaft. A block member is mounted to the workbench spaced from one jaw a distance at least as great as the dimension of the largest work piece to be clamped between the jaws. A transfer mechanism carried by the block member includes a moveable female member adapted to be moved into and out of engagement with the threaded shaft. In the disengaged position, the shaft is freely slideable in the block member to permit rapid positioning of the shaft. In the engaged position, the shaft can be turned to powerfully clamp the work piece between the jaws.

Abstract: A vise adapted to clamp a workpiece includes a support which has a slide surface, first and second jaws movable with respect to one another, and operable to clamp the workpiece, and wherein at least one jaw is slidable along the slide surface. A drive element is in driving connection with at least one jaw so as to at least move that jaw into engagement with the workpiece, and a drive mechanism is operable to drive the drive element. A stressing mechanism is provided for pressing the jaw against the slide surface upon the drive element driving the jaw into engagement with the workpiece.

Abstract: For fitting a strip-like flexible metal doctor blade (4) into the usual clamp means (1, 2) of a rotary printing machine there is used a guide (5) having first and second stop surfaces (5a, 5b) which are linear and parallel, and are spaced by the extent by which it is desired that the blade (4) shall eventually protrude from the clamp means (1, 2). The blade (4) is abutted against one stop surface (5a), and is then secured in the guide (5). The guide (5), with the blade (4) in it, is then moved to cause the second stop surface (5b) to abut against the clamp means (1), with the protruding portion of the blade (4) inserted into the clamp means (1, 2). The clamp means (1, 2) are tightened onto the blade (4), and the guide (5) is removed. For a blade (4) consisting of two strip-like parts placed face to face, the guide ( 5) is provided with a step. One blade part is abutted against the stop surface, and the other blade part is abutted against the step.

Abstract: An apparatus for holding a workpiece is provided which will allow rotation of the workpiece within the apparatus. A generally stationary base (78) supports a rotatable assembly which includes a pair of outer rings (62,62'), at least one inner hoop (64,64') positioned within each ring, and means (42,112) for securing the workpiece substantially within the assembly are included in the apparatus. Bearing mechanisms (94,94') on the base (78) engage portions of a respective outer ring to allow rotative movement of the assembly about an axis (52). Preferably the base is provided with means (84) for adjusting the distance between the outer rings (62,62') along the axis (52). Means (101) for preventing the rotation of the assembly and workpiece may also be provided.