Abstract: The quick-acting clamping device for clamping preferably identically shaped workpieces has a base part (1) comprising an elongate yoke plate (2) and a fixed jaw (3) at each of the end faces. Into a longitudinally oriented guide slot (6) in the base part (1) is inserted a clamping block (7) which is longitudinally displaceable between the jaws (3), can be locked on the base part (1) at any desired point in the displacement range by means of a set screw (36) and has a side part on which a clamping head (8), held by means of a connecting link guide, is longitudinally displaceably mounted. The clamping head (8) can be moved in the clamping direction (C) towards a jaw (3) by means of an excentric part (22) rotatably mounted in the slide part in order to hold the workpiece.

Abstract: An eyeglass frame holder is provided in the form of a variable contour vice. The vice incorporates a series of parallel slideable jaw elements in two banks that may be locked in position by a single wedge clamp which forces a pair of thrust elements outward to frictionally lock the two banks of jaw elements.

Abstract: A spring clamp with a lower clamping jaw, an upper clamping jaw, a first handle portion extending rearwardly from and integrally connected with the lower clamping jaw, a second handle portion extending rearwardly from the upper clamping jaw, the upper clamping jaw having a slide-housing integrally connected to the second handle portion, and an L-shaped bracket having a first leg portion having a free end for sliding cooperation with the slide-housing and a second leg portion extending at right angles to another end of the first leg portion. The slide-housing has a first cooperating means and the first leg portion has second cooperating means, the first and second cooperating means being operatively associated to allow for the sliding movement of the first leg portion with respect to the slide-housing and for preventing the escape of the first leg portion from sliding engagement with the slide-housing means.

Abstract: An extension table for a machine tool of the type that includes a machine table that defines a reference plane includes a rigid, straight beam having a lower surface. A ledge is mounted to the lower surface of an outer portion of the beam to extend outwardly from at least one side of the beam, and this ledge defines a continuous upper surface which is substantially coplanar with the lower surface of the beam. The inner portion of the beam is mounted on the machine table with the beam positioned above the machine table such that the outer portion of the beam is cantilevered from the machine table with the lower surface of the beam substantially coplanar with the machine table. The outer portion of the beam is then supported against deflection by a support leg. The beam is sufficiently rigid to ensure that the upper surface of the ledge is substantially coplanar with the machine table.

Abstract: A multiple purpose work station having an angularly displaceable spine of square section. The station also includes sockets for a headstock or other accessory which are secured to a nut so that rotation of a leadscrew by a handle axially displaces the headstock toward and away from a tailstock or other accessory. The latter is supported by a saddle which can be clamped in a desired position on the spine.

Abstract: A X-Y table is disclosed having a table rotatably mounted on a base for movement in the X-Y and .theta. directions. The device includes fine adjustments in both X and Y directions and a quick shear mechanism with means for automatically returning the table to its original position after the quick shear procedure. The table may be used as a stand above unit or particularly for use in installing and removing components from printed circuit boards.

Abstract: An insulator holder is provided herein which allows a lineman to service or repair porcelain insulators without being subjected to the hazzards of broken or cracked insulators. The insulator holder provides a plurality of jaws which converge toward a base whereby the insulator can be firmly held in place during maintenance. One embodiment of the device includes adjustable jaws which can be positioned according to the size of the insulator being repaired.

Abstract: A jig for automatically welding pipe frames used to form vehicle seats is disclosed. In this jig, there is provided on a frame carrying plate a guide element having the reference plane of one of two side portions of a frame, so that the one side portion of the frame can be welded while it is in abutment with the guide element. To weld the other side portion of the frame, the frame carrying plate is moved and two adjusters provided in a bed plate are used for the reference. With such structure, while a welding machine remains fixed, by changing the references according to the portions to be welded in the width direction of the pipe frame, it is possible to weld the two side portions of the frame accurately.

Abstract: A connector comprises two parts; namely, a keeper 10 in the form of a substantially flat plate having a slot 12 therein, and a bar 11 which locates in the slot. The keeper has a locking pin 13 which screws into a hole 14 in the keeper and engages the bar. The bar and slot are curved transversely so that pressure by the pin causes a greatly increased frictional grip between the slot and bar than would otherwise be the case if the bar and slot were flat.The connector has numerous uses such as a straight edged clamp as described in the preferred embodiment or for assembly of a kit of parts where a bar and keeper are incorporated into the respective parts to be joined.

Abstract: A tool adapted for use by a pipefitter in welding a length of pipe to a fitting in which one end of the pipe is accommodated with a predetermined spacing between the end of the pipe and an internal shoulder within the fitting. The tool has jaws which may be clamped on the pipe when the end of the latter is in abutting engagement with the shoulder of the fitting and includes spacers that are movable to a position between the jaws and the end of the fitting to provide a predetermined spacing between the free end of the pipe and the shoulder of the fitting. The tool also includes scribers for marking the pipe and the fitting in such manner as to facilitate verifying that such gap has been provided between the end of the pipe and the shoulder of the fitting.

Abstract: A tool for use in welding a pipe to a fitting and wherein a gap is to be provided between the end of the pipe and an internal shoulder in the fitting. The tool has support arms provided with jaws that may be clamped onto the pipe and shims that may be manipulated to provide the gap. The tool has scribes for inscribing marks on the fitting and on the pipe to facilitate inspections following welding operations. The jaws are pivotal relative to the support arms to facilitate welding operations.

Abstract: A trailer bed or chassis including side rail extensions and center rail support posts serves to mount a wooden truss fabricating jig including laterally adjustable center rail sections and associated transverse arms for the support of truss lumber. An arrangement of permanent stops and swivel stops on the jig together with a truss peak locator and splice locator enable the setting up on the job site of a calibrated jig prior to placing the truss lumber thereon, resulting in a great savings of time in truss fabrication. Trusses are produced with precision and uniformity having improved quality and a wider range of truss sizes can be accommodated with the apparatus because of its versatility.

Abstract: A handgun holding device having a baseplate and a pair of angle brackets rigidly mounted on the baseplate to rigidly engage opposite sides of the handgun's handgrip to maintain the handgun in position during cleaning or repair while allowing ready access to all regions of the handgun. Other preferred embodiments include handgun holding devices having lateral support brackets for rigidly engaging opposite sides of the handgrip, and barrel supports mounted to the baseplate to supportably engage the handgun's barrel.

Abstract: An apparatus secures a damaged vehicle for straightening with a vehicle straightening device. The apparatus includes a base and a mechanism for securely attaching the base to a support in a plurality of positions such that the base is in a fixed spatial relationship with respect to the vehicle straightening device in each position and is easily transferable from position to position. A clamping mechanism securely holds the vehicle by clamping a portion of the vehicle. A vertical positioning mechanism positions the clamping mechanism along a substantially vertical axis between the base and the vehicle portion to be clamped and a preferred horizontal positioning mechanism positions the clamping mechanism along a substantially horizontal plane. The clamping mechanism is pivotable about two separate pivot axes located between the base and the clamping mechanism.

Abstract: A pipe welder's aligning tool for use in joining two pipe members end to end comprises a clamp having a pair of jaws movable toward and away from one another so as separably to clamp one pipe member adjacent its end. The jaws carry supports of such length as to extend beyond the one end of the clamped pipe to provide support for the confronting end of a second pipe member that is to be joined to the clamped pipe. To enable the supports to function properly regardless of the diameters of the pipes that are to be joined, the supports are adjustable relatively to their associated jaws. One of the jaws may be mounted on an elongate member which is adjustable to enable the tool to be used on pipes of greatly differing diameters.

Abstract: A motor operated circular miter chop saw is pivotally mounted on a generally horizontal axle pivot bolt about which it rotates in a vertical plane with the axle pivot bolt being carried by a cast support base structure. Angular orientation of the work-piece is provided by an angularly adjustable fence rotatably carried by the cast base support structure. Clamping means are also provided selectively mountable with the cast support base to provide hold-in clamping action for holding a work-piece against the fence or mountable with the fence to provide hold-down clamping action for holding a work-piece against the cast support base.

Abstract: An adjustable off-set spring loaded clamp is provided for assisting in welding, and other operations, and a stand is also provided which supports the clamp in any desired position and orientation. The clamp and stand both include coarse and fine adjustments whereby the jaws of the clamp can be set precisely to any desired initial separation, and whereby the clamp may be adjusted precisely to any desired orientation and held in the desired orientation, so as to enable the clamp to accomplish a wide range of holding functions.

Abstract: A bone transfixion pin quide includes a body having two spaced, transversely-extending end portions, channel members and prongs for affixing the body in relation to an insertion site. The channel members are on the end portions, and define entrance and exit channels for the bone transfixion pin. In use, the body is affixed in relation to the insertion site, with the entrance and exit channels along the desired path of the bone transfixion pin.

Abstract: A combination tool including a table base, a carriage mounted on the base and having a screw jack for moving it forwardly and rearwardly relative to the base, a main table top carried by and movable with the carriage, and an auxiliary table unit having a planar surface through which the blade of a power saw projects. The auxiliary table may be mounted on the carriage in a first position, in which the auxiliary table surface forms an extension of the main table for conjointly supporting work pieces to be moved in cutting relation to the saw blade, with the screw jack functioning to adjust the spacing bewtween the saw blade and a fence carried fixedly by the base, and a second position in which the auxiliary table surface is disposed vertically at an edge of the main table top and the projecting saw blade overlies the main table surface for grooving, edging or shaping the edge of a work piece supported on the main table.

Abstract: Vise jaws are mounted on supporting jaw structures by interfitting dovetail formations which taper to draw the jaws into tight-fitting engagement with their supporting jaw structures while also serving to accurately position and orient the jaws relative to their supporting jaw structures. The jaw mounting system utilizing these interfitting dovetail formations is particularly well adapted for use on a fluid-operated vise of a modular type. The preferred vise construction includes an elongate base structure having a generally rectangular top surface with an elongate undercut groove formed in the base structure and opening through the top surface. The jaw structures are supported on the top surface and are movably positionable therealong. In preferred practice, one of the jaw structures includes a fluid-operated movable component. This component and the other jaw structures are each provided with a jaw mounting surface.

Abstract: A slidably adjustable clamp having a locking element in the form of a tapered key for wedging the clamp sliding arm on the clamp rail. The locking element having a bevelled surface on one side is adapted for loose insertion into a rectangular notch formed in the sliding arm opening whereby the locking element can be hammered into wedging engagement between the sliding arm and the rail to lock the arm on the rail. A double-acting wedging effect in both longitudinal and lateral directions is created upon subjecting the locking element to clamping pressures. A second embodiment of the invention comprises a locking element with a planar side which engages a side wall of a trough-shaped recess to laterally engage the sliding arm.

Abstract: Disclosed herein is a holding clamp assembly disposed on a table having parallel trackways disposed thereon. Riding within these trackways are diverse types of clamping mechanisms which cooperate and coact with one another to provide retention means for objects to be worked on. In one embodiment, the clamping devices comprise opposed parallel faces which engage the object to be worked on. Another embodiment the clamping mechanism is defined by L-shaped clamps having clamping screws disposed at one extremity to engage a work piece between the table surface and the screw clamp.

Abstract: The clamp comprises an L-shaped fixed member and an L-shaped sliding member retained by a loop thereon to be slidable along the post portion of the fixed member. A clamping screw threadably engages the slide bar portion of the sliding member above the loop, and bears against the inner surface of the post.When the sliding member first engages a workpiece it tilts only slightly, and in an anticlockwise direction as illustrated in FIG. 1. Upon tightening of the clamping screw, the sliding member is tilted slightly but in a clockwise direction, correcting the initial tilt and maintaining the jaws substantially parallel.Since the clamping screw bears against the post with a greater pressure than the pressure applied to the workpiece, the clamp does not rely upon tilting to grip the post.

Abstract: A fluid-operated vise includes an elongate base structure having a generally rectangular top surface. An elongate undercut groove is formed in the base structure and opens through the top surface. A pair of jaw structures are supported on the top surface and are movably positionable therealong. One of the jaw structures includes a fluid-operated movable component for gripping workpieces between it and the other jaw structure. Downwardly facing elongate grooves are formed in bottom portions of the jaw structures and communicate along their lengths with the undercut groove. Elongate key members are positioned in the communicating grooves to maintain proper alignment of the base and jaw structures. The key members also form parts of clamping systems which are operable to releasably retain the jaw structures in place at selected positions along the length of the top surface.

Abstract: A clamping apparatus comprises a frame member, a slider member and a locking member all adapted for manufacture from high strength plastic materials by means of injection molding. The frame member comprises an elongate bar portion and a jaw portion extending perpendicularly to the bar portion. The slider member includes an aperture portion which receives the bar portion of the frame member and a depending jaw portion. The locking member extends through the aperture portion of the slider member and functions to lock the slider member against movement along the bar portion of the frame member.

Abstract: An adjustable shaft rest assembly is disclosed for securely clamping a workpiece to a fixture table. A clamp including a clamp head which is selectively displaceable from a first position to a second position is mounted on a base and a pair of bores are defined in the base with the axes thereof intersecting the axis of a clamped workpiece for receiving a pair of shaft rests which can be selectively axially displaced from first positions to second positions. Each of the first and second shaft rests includes a threaded central bore which is threadedly received by first and second threaded studs which are fixedly secured within the base bores.