Abstract: Window frame elements to be fusion welded are mounted on movable beds. A locating plate is provided adjacent the heating plate for precise positioning of the frame elements. After the elements are heated, the heating plate is withdrawn by sliding the heating plate from between the frame elements while they are still in contact with the heating plate, thereby drawing a bead of excess seam material in the direction of the sliding. Thus, the inside corner is formed without a bead. Movable stops are provided for each bed to ensure precise positioning of the beds during each step of the process.

Abstract: Metal board holder used in the construction industry having base and body plate members. Each member has a board receiving U-shaped bracket with nail receiving holes. A base plate adjustment slot can receive one or more threaded body plate member extensions which ride in it to permit plate member adjustments with respect to each other. The body plate member is pivotally mounted to its bracket and has several hinged plate sections the lowermost of which mounts the threaded extension. Locking nuts engage the threaded extension when it is inserted into the base plate's slot to fix the plate with respect to each other. Many types of board holding orientations are disclosed.

Abstract: An outlet opening (14) to a branch line 40 in a pipeline 10 is sealed without interrupting the flow of gas in the pipeline 10 by cutting an access opening 60 in the wall 62 of the pipeline 10 opposite the branch line 40. A seal 100 is inserted through the access opening 60 using a sub-assembly 70, which consists of a flange 74 having a screw-threaded through aperture, an externally screw-threaded tube 82 received in the aperture and a rod 80 carrying a handle 72 at one end and the seal 100 at the other. The seal 100 has a sealing face 102 which is part-cylindrical in shape and is held in the correct orientation by the handle 72 while the tube 82 is screwed home. When work on the branch line 40 has been completed a temporary seal 160 is installed in the joint-flange 16 which is welded to the pipeline 10 allowing removal of the isolation valve 64 which is replaced by a blanking flange fitted to the joint-flange 16.

Abstract: A clamp used in the concrete forming industry to attach various devices to framing systems in order to maintain vertical alignment of concrete forms. The clamp is a wedge style clamp that provides a friction connection between the waler and strongback beam. The clamp is set in place by use of a hammer and is a one piece design so the various parts will not be lost.

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: An adapter plate for removable attachment to a U-shaped lower jaw of a set of toggle clamps is disclosed. The adapter plate is constructed of a rigid metal suitable for providing a backing for a joint to be welded by means of a MIG welding or arc welding process such as copper or brass. The plate is triangularly shaped and includes upper and lower broad flat surfaces, a base side and a pair of adjacent sides extending from opposite ends of the base side and intersecting at a predetermined angle to form an apex. The plate contains beveled edges for clearing the rounded inside cornters of a pair of angle iron workpieces when said workpieces are placed against one or more sides of the plate to be positioned relative to one another for being held by the clamps for welding the workpieces together or for other purposes.

Abstract: An apparatus is provided for aligning and securely positioning at least two components relative to each other, comprising a support frame, first and second alignment plates pivotally mounted on the support frame for abutment by the components to permit positioning of the components of various angles relative to each other, and a vacuum device for holding a component against the respective plate. The vacuum device may include first and second flexible vacuum pads corresponding to the plates, a respective vacuum pump associated with each alignment plate and a control valve for selectively controlling the flow of supply air to the vacuum pumps. A locking device may be provided for preventing relative pivotal movement of the plates by securing the plates in a predetermined alignment position. The alignment and securing apparatus of the present invention can be used to easily, quickly and securely position two components in a variety of relative orientations.

Abstract: A transportable welding station has a first tower supporting at least one pair of power-driven rollers and a second tower supporting a pair of rollers aligned with those of the first tower. A piece of pipe may be cut or welded as it is supported and rotated by the two sets of rollers, thereby permitting a smooth continuous cut or weld around the entire circumference of pipe. To accommodate different lengths of pipe, a welder can change the distance between the two towers. A version with two pairs of power-driven rollers supported by the first tower allows short lengths of pipe to be welded. Even shorter or irregularly shaped pieces may be welded as they are held by a chuck that is turned by the rollers supported by the first tower. A work table is also provided to allow those whose job is to tack, or tentatively join, pipe sections so that those people may work with a small ancillary welding machine. A fold-up jib crane allows heavy pipe workpieces to be loaded onto the welding station.

Abstract: There is provided an apparatus which is used to temporarily support one end of a cross piece during construction of a deck or fence rail. The apparatus is in the form of a C-shaped frame having an elongated base plate and a pair of leg plates extending from each end of the base plate. An adjustable clamp member is attached to one of the legs for securing the apparatus to a first vertical beam. A platform is attached to the other leg and receives one end of the cross piece for holding that end of the cross piece in position on one beam while the other end is secured to a second adjacent spaced apart beam. Once a cross piece has been attached to the two adjacent beams, the clamp may be flipped over and the other side of the clamp may be attached to the second beam so that another cross piece may be abutted against the first cross piece and attached between the second beam and a third beam. The apparatus enables cross pieces to be attached to beams by one person.

Abstract: A clamping system is provided for assembling the wall panels of wooden kitchen cabinets and the like, including a frame that is normally supported for sliding movement on an assembly table toward an assembling position relative to a workpiece arranged on the table. The frame is vertically displaceable between a normal elevated transport position and a lowered clamping position relative to the assembly table, and a normally-activated device prevents displacement of the frame from the elevated position to the lowered position. A first suction cup is carried by the frame for connecting to the frame a panel that is to be fastened to the workpiece, and a second suction cup is carried by the frame that is operable, when the displacement preventing device is deactivated, to connect the frame to the assembly table, thereby to clamp the panel to the workpiece.

Abstract: A hanger for holding and supporting fascia board during installation along the rafters of a roof. The hanger is formed of a saddle or bracket which attaches to the upper edge of the rafter. A fascia catch is pivotally attached to the saddle through an adjusting bar. The catch can be adjusted along the adjusting bar as needed and then locked in place.

Abstract: A method and apparatus for joining plastic profile members together, particularly to form picture frames. The profile members are held in place by fixture members against a locator member. The locator member is withdrawn and a heated blade positioned between the ends of the profile members. The profile members are moved against the thin blade and the end surfaces are heated to an elevated temperature. The blade is removed and the ends are welded together. During a cooling period, the retracted blade can be cleaned as desired by a blade cleaning mechanism. After the joined profiles are removed, the members are returned to positions to begin another cycle.

Abstract: A clamping jaw (10) for a clamping device, adapted to be mounted on a profile member (31) is formed by two separate jaw members (11) and a common rear counter support (12) for said members, which is arranged to transmit clamping forces produced by means of clamping bolts (32) to the two jaw members (11). The jaw members (11) and the counter support (12) have cooperating engagement means (13, 15) for placing and holding the jaw members (11) in predetermined positions in relation to the counter support (12). In order to make it possible to adapt the clamping jaw (10) to profile members of different shape and size, the engagement means (13, 15) are arranged to permit each jaw member (11) to be placed and held in a plurality of different positions in relation to the counter support (12).

Abstract: A method and apparatus for joining plastic profile members together, particularly to form picture frames. The profile members are held in place by fixture members against a locator member. The locator member is withdrawn and a heated blade positioned between the ends of the profile members. The profile members are moved against the thin blade and the end surfaces are heated to an elevated temperature. The blade is removed and the ends are welded together. During a cooling period, the retracted blade can be cleaned as desired by a blade cleaning mechanism. After the joined profiles are removed, the members are returned to positions to begin another cycle.

Abstract: A gripper tool for facilitating the handling of framing lumber of two inches by four or more inches cross-section used as studs and joists, includes a pair of pivotally joined levers having longer arms at one side of the pivot constituting handles and shorter arms at the other side of the pivot. A first of the shorter arms has a portion which extends from the pivot and at its end has a right angularly extending jaw adapted to engage one side of a lumber member, and the other shorter arm, which is pivotable relative to the first, has a jaw engageable with the opposite side of the lumber member. A thin plate affixed to the extending portion of the first shorter arm extends equidistantly to either side for providing ears adapted to temporarily support on an adjoining lumber member an end of a lumber member to which the jaws are releasably clamped. An optional spring, pivotably attached to the flat plate, is shaped and dimensioned to lock the clamped tool onto an abutting lumber member of the same thickness.

Abstract: An improved miter joint damp is provided in which actuation of workpiece gripping members is effected by a manually actuated member which extends transversely to the plane of the clamp thus facilitating its placement and use.

Abstract: An alignment fixture having a base and two sides situated so as to form three mutually orthogonal planes is used to align the sides of stained glass boxes and box like items having square corners and also to hold the sides in position while the corner joint formed by the convergence of two sides is tack soldered. Further a second alignment device having a base and sets of sides mounted perpendicular to said base and at some desired angle to each other is used to align the sides of stained glass boxes and box like devices having internal angles between adjacent sides other than ninety degrees and to hold the sides in position while the corner joint formed by the convergence of two sides is tack soldered. A third angular alignment device is used to align the panels of a stained glass panel lampshade having some fixed number of sides. The device allows panels to be aligned and clamped in the proper three dimensional orientation one panel at at a time until the assembly is complete and ready for soldering.

Abstract: A device for mounting plate-like elements, such as glass plates, that form an object, for example shelves, when several are mounted together, and that are at first temporarily held by the mounting device and then fixed, for example, glued to each other, includes a suction line for generating a vacuum, the suction line being fastened to the elements, and components, for example, bars, that can be removably linked to each other and upon which the suction line can be removably fastened. The suction line can be coupled to flexible tubes which are coupled to a suction chamber and a suction pump. A manually-operated check valve is provided in the suction line connecting a suction region to the flexible tube. A small fixed gap, approximately 0.3 mm, is provided between the suction area and the surface of one of the plate-like elements, so that the suction holding force acts quickly when the check valve is opened.

Abstract: A multi-purpose clamping apparatus to join the confronting edges of two boards together during a gluing process having a pair of base plates, a central hub about which the base plates may be rotated, a rail projecting laterally from the hub on which one of the base plates is connected and a press mounted on one of the base plates and engaging the rail for drawing the base plates together. Respective clamps overlie the upper surface of the base plates.

Abstract: A clamp suitable for securing a support post to a structural member of a railing such as may be associated with a deck is disclosed. The clamp includes an outer bracket movably connected to an inner bracket, and a clamping bolt. The clamp is secured to a structural member such as a joist or fascia strip by adjusting the position of the outer bracket relative to the inner bracket using the clamping bolt. With the clamp secured, the user has both hands free to position the support post within the clamp and adjacent to the structural member. In a second clamping movement, the clamping bolt is utilized to clamp the support post to the structural member.

Abstract: Angle adjustable clamps are described which include a pair of jaws connected to pliers-type handles. At least one of the jaws includes two faces, and the angle between the faces is adjustable. The clamps are useful for gripping and supporting workpieces at a desired angle to each other.

Abstract: A workpiece holder for angularly reciprocatory friction welding apparatus includes clamp members for clamping the workpiece to a mounting table. The height and circumferential position of a drum is adjustable to facilitate blade attachment in manufacture of a blum. Means are also described for reinforcing the drum during blade attachment in order to absorb welding forces which might otherwise distort the drum surface.

Abstract: An apparatus for supporting and guiding a router in cutting work-pieces to form an interlocking joint comprises a base support member to which two work-pieces are mounted, at least one being in a horizontal plane. A template is also mounted to the base support member above the horizontal positioned work piece. The template is adjustably connectable to the base support member and vertical and horizontal work-piece clamping assemblies are provided with a movable clamping device so that clamping pressure is applied adjacent to each work-piece in holding the work-pieces on the base support member for cutting.

Abstract: A weld fixture for receiving and aligning the fuel rod contact points of a nuclear fuel bundle spacer grid. Two plates are provided with intersecting unequally spaced slots that define polygons on one side of each plate. Both plates have bores therethrough substantially at the slot intersections and in the slots adjacent the outer edges of the plates. Bores are provided through both plates in polygons that correspond to fuel assembly guide tube and instrument tube locations. These positions receive guide cell pins during use, some of which are hollow and are used to bolt the plates together over the spacer grid strips. Bores in each plate through the defined polygons receive alignment pins. Guide rods receive and align the plates through corner bores in each plate. The slots and pins in the facing plates align the critical fuel rod contact points in the spacer grid during the intersection welding process.

Abstract: A multi-purpose clamping apparatus to join the confronting edges of two boards together during a gluing process having a pair of base plates, a central hub about which the base plates may be rotated, a rail projecting laterally from the hub on which one of the base plates is connected and a press mounted on one of the base plates and engaging the rail for drawing the base plates together. Respective clamps overlie the upper surface of the base plates.

Abstract: Disclosed is an assembly fixture and method useful for the assembly and fabrication of metal grids such as used to support and position the fissionable fuel rods of a nuclear fuel assembly. The grid assembly fixture uses a grid assembly plate (1) and a plurality of toggle clamp assemblies (9) and clamping pads (12) attached thereto to temporarily hold the four peripheral or border grid straps (7) in proper position and alignment against the four sides of the grid assembly plate (1). A strap retention assembly (13) is then placed around the four peripheral or border grid straps (7) to hold them in proper position and alignment during the further fabrication and welding of the grid straps (7).

Abstract: A modular grid welding fixture for a spacer grid that facilitates full grid laser welding of a spacer grid in one setup. The modular design allows for partial implementation of each weld type. A base plate is used for mounting to the positioning/rotational plate of the welding system. A removable sub-plate received in the base plate is used to position the grid strips for proper location for welding. A top fixture plate is aligned with the base plate and provides for mounting of a second sub-plate if required. Side plates with spring loaded pressure pads that are hinged to the top fixture plate apply uniform pressure to the outer grid strips during processing. The base plate, top plate, side plate, and pressure pads are provided with a plurality of through holes to allow access of the laser beam for welding. Corner clips are used to insure contact of the overlapping sections of the outer grid strips for proper corner welding.

Abstract: In a preferred embodiment, a ceiling clamp to assist in mounting panels to a ceiling, including: an upwardly open channel defined by a distal vertical wall, an upper portion of a proximal vertical wall parallel to the distal vertical wall, and a horizontal floor joining the distal and proximal walls, the upwardly open channel being dimensioned to accommodate therein a lower portion of a ceiling joist; clamping means to clamp the lower portion of the ceiling joist in the upwardly open channel; and a horizontal base member attached to the upwardly open channel to provide a surface upon which an end or edge of ceiling panel may be placed when the ceiling clamp is clamped to the ceiling joist.

Abstract: An article of furniture is provided having an improved corner joint. The furniture includes a pair of spaced apart end pieces, each end piece including corners with pockets formed in the corners by bent flanges. The pockets have a square cross-sectional shape and the flanges form all four sides of the pockets. A pair of tubes are shaped for close engagement in the pockets. A pair of fixtures and hand clamps are provided, the fixtures including plates adapted to engage the openings formed by the tubes. Clamps on the plates are actuatable to hold the end pieces and the tubes to the perimeter of the plates in a predetermined shape and the hand clamp improve surface flushness of the corner joint during welding. By this arrangement, the furniture components are clamped together in a highly dimensionally accurate arrangement which is both square and repeatable.

Abstract: A carpenter's toe-nail backup clamp for use in positioning a first board, such as a 2.times.4 wall stud, to a second board, such as a 2.times.4 plate, to facilitate attaching the first board to the second board with nails, the backup clamp having a base member to rest on the second board, an end plate affixed to one end of the base member for extending along one edge of the second board, a cam member secured to the base member at the other end thereof about an axis that is parallel to the end plate, the cam member providing variable spacing from the end plate according to the rotational position of the cam member, and a handle extending from the cam member by which the cam member can be rotated to clamp the second board between the cam member and the backup plate, the base member thereby providing a backup for a first board so that the first board may be toe-nailed to the second board.

Abstract: A jointing jig for the assembly of two- and three-dimensional joints is disclosed. The jointing jig includes two rigid bodies which are hingedly interconnected. Each rigid body includes a side having a plurality of channels of uniform size designed to accurately locate parallel-sided members for jointing. Each rigid body includes a channel along the hinged side of the body. A rigid removable connector locks the hinged rigid bodies at 90.degree. to each other. This permits the assembly of accurate three-dimensional corner joints. The advantage is that accurate three-dimensional corner joints may be assembled by persons inexperienced in joint construction.

Abstract: A jig for assembling a rebar pier cage wherein certain of the individual jig elements are laterally and longitudinally adjustable to provide a jig capable of assembling rebar pier cages of various sizes and shapes. The jig elements comprise a plurality of rebar stirrup retaining elements removably secured within longitudinal openings in first and second, elongated channel bars which traverse a rectangular work surface in parallel relationship. Opposite ends of the first and second channel bars are slidingly secured within longitudinal openings of third and fourth channel bars which laterally span the opposite, shorter edges of the work surface. Means are provided to adjust the longitudinal spacing between each stirrup retaining element in the first and second channel bars, and also the lateral spacing between the first and second channel bars.

Abstract: Door frames, window frames, baseboards etc are trimmed with solid weed, e.g. oak, trim pieces. The trim pieces are fitted over splines which are screwed to the wall. A jig enables the splines to be located accurately in position. The spline includes no beads, snaps, or other features that would require the oak trim section to flex; instead, the trim is secured by the friction arising from the fit of the spline into a groove cut into the rear face of the trim section. In a variation, a pair of parallel grooves are provided, together with a corresponding pair of splines, which are mounted on a web.

Abstract: An apparatus is disclosed for woodworking and like applications to clamp structural members in abutting relation by initial formation of a pair of recesses in the structural members on a common imaginary line perpendicular to the intended joint line. The clamping apparatus has two clamping members each having an outwardly projecting engagement portion configured to fit securely in the recesses and a clamping mechanism actuable to move the clamping members and their engagement portions toward and away from one another for clamping movement along a clamping line coinciding with the imaginary line perpendicular to the intended joint line. The clamping apparatus may be used in forming virtually any edgewise abutting joint between respective structural members, e.g., miter joints, butt joints, linear edge joints, and radius edge joints.

Abstract: A tool for the carpenter or welder in the building industry. The tool quickly and accurately places joist hangars, which are used to fasten and support joists. The tool frees the users hands while holding the hangar in its proper position. Gravity holds the tool and joist hangar combination plumb. The flanges (4) on the tool body (1) engage the flanges on the hangar in proper configuration. The tool has a centered, adjustable sliding support hook which is bent to hook over the top of the beam and slide vertically through the body. The adjustable sliding support hook(2) is secured by a hand operated set screw(3), which is threaded into the body(1). The joist hangar slides into the tool easily. When the joist hangar is nailed or welded, the tool slides off of the installed joist hangar just as easily. The tool can be made in appropriate sizes for different joist hangars. This tool can be fabricated, cast, or injection molded from either metal or plastic.

Abstract: A bench mounted machine allows an operator to produce both mating components for woodworking through and half-blind dovetails in workpieces suitable for case construction and drawer construction with computer controlled programmable flexibility to determine size and centerline spacing of pins and tails as well as half-pin widths. Symmetrical and asymmetrical through and half-blind dovetail configurations can be created without the use of guide templates or fixed spindle arrangements. Stationary workpieces are mounted vertically and horizontally above an automated two axis dovetail cutting means. Pins and tails for interlocking through and half-blind dovetail joints are milled in the ends of workpiece boards based upon operator input commands from a personal computer control station.

Abstract: Jigs comprising rectangular plates (30, 50, and 60) have centrally positioned concentric recesses and/or holes (37, 39, 51, 53, 61, and 62) for accepting the lip (40) of recessed light fixtures, ceiling fans, and heaters during installation between adjacent ceiling joists. Jigs are attached to joists by screws passing through slots (33 and 65) which enable jigs to be adjusted side-to-side for exact position. Jigs have graduated scale (41) along edges for visual reference and correct positioning of fixture and centrally aligned slots (47) for attaching tape ruler when measuring to another fixture position. A rabbet (45) along one end allows jigs to be used as right-angle square for scribing adjacent joist. A handle (42) provides a balanced position for holding jig while attaching to joists. The jigs make it possible to wire multiple fixtures before installation. A fourth embodiment jig is spaced 0.5" below joists by spacers (72) and has concentric markings and parallel lines for positioning fixtures thereon.

Abstract: A three-dimensional frame structure for the construction of road mats is disclosed. The structure includes the components of the mat positioned to insure uniformity of assembly of mats of different sizes, with a single end structure that acts as a template and with means for moving a mat for final affixing onto a table while permitting the assembly holding structure to be repositioned for constructing another mat.A method of manufacture for road mats which utilizes a frame to position the components of the mat during the mat's manufacture into a predetermined arrangement to ensure the uniformity of each mat for interchange use in the field is also disclosed, whereby mats may be completed by the apparatus while other mats are being assembled.A temporary road comprised of two sets of mats is also disclosed. The first set of mats is laid down such that its smooth surface is on the ground.

Abstract: An adjustable fascia board holder which comprises a channel section mountable on a roof rafter and having a pivotally mounted quadrant thereon which can be locked at any selected angle thereto. A second open channel is mounted on the quadrant at right angles thereto to receive a fascia board therein and hold it against the end of the rafter to facilitate nailing of the board to the rafter.

Abstract: A rebar clamp for clamping rebars to templates during the pouring of footings and the like is disclosed. The disclosed rebar clamp includes a body in the form of a helical coil and a screw member threadedly engaged with the helical coil and having a transverse handle at its outer end. A pair of arms are affixed to the opposite sides of the helical coil and are spread wide enough apart to embrace a template of well known type across its major dimension. The outer of each arm is provided with a hook which can tightly engage a rebar and firmly clamp it against one major face of the template when the screw member is rotated in such manner as to advance it against the opposite major face of the template.

Abstract: A clamping device includes a first and a second clamping yoke (36, 38), which are mutually adjustable in a plane of movement. The first clamping yoke (36) carries two mounting jaws (82), each having a first angular clamping surface (86), which is arranged at an angle .alpha..sub.1 <180.degree. relative to the other first angular clamping surface and perpendicular to the plane of movement (58), so that the first angular clamping surfaces form a first prismatic workpiece receptable open towards a mounting jaw of the second clamping yoke. Said clamping device also includes a spindle (42), extending parallel to the plane of movement, for adjusting the position of the clamping yokes relative to each other.

Abstract: A versatile work bench. Throughbores are formed in the bench top and a captive nut is positioned in a countersink associated with each throughbore on the bottom surface of the bench top. Clamping boards are similarly provided with throughbores and captive nuts positioned in countersinks. Clamping tools that include a hand-rotatable handle and a screw that rotates in response to rotation of the handle may be employed to clamp workpieces between the bench top and the clamping boards. Clamping wedges that also include a throughbore and a captive nut may be tightened by clamping tools to wedge together workpieces disposed in edge-to-edge relation to one another. Turnbuckles and straps may be used to interconnect the bench top and clamping boards when large workpieces are to held atop the bench top. Large flat items may be held on their edge on the bench top by a mounting block and an arrangement of turnbuckles and straps.

Abstract: A clamping device for use with stock to be adhesed into a position where it will be routed to form a cove or other shaped routed joint at the interface of a vertical and a horizontal surface of Corian.TM. or equal rigid plastic sheets typically at the junction of a countertop and a backsplash respectively for kitchens and bathrooms. The device includes a main body having a pair of spaced suction cups at opposite ends of the main body portion. Each of the suction cups is disposed on an extremity or terminal section of the central section of the main body at a similar but oppositely directed angle relative to the central section of the main body portion. The central section also includes a spring-loaded retaining notch disposed therethrough at about the midpoint of the central section for the stock to be routed.

Abstract: An apparatus for conveniently plumb-aligning walls is provided. The apparatus includes an anchor for pivotally attaching the device to the ground. The anchor is attached to a support member for positioning a tubular member at a convenient height for manual manipulation. Extending upwardly from the tubular member is an extender. Attached to the end of the extender is a bracket member for clasping the top of the wall which is to be plumbed. The tubular member is equipped with a threaded rod disposed therein. The rod is received by a threaded end of the extender, so that the total length of the apparatus may be increased by rotating the tubular member in one direction, and alternatively the total length of the apparatus may be decreased by reversing the direction of the rotation of the tubular member, thereby easily and accurately plumbing the wall.

Abstract: Elongated metal stock is advanced intermittently past punch presses which form holes in the stock when the stock dwells. A shear cuts off successive leading end portions of the stock and forms the stock into short pieces. The same machine is capable of running both angle iron and flat stock without making any significant conversons to the machine between runs. This is achieved through the provision of a feed mechanism and clamping units which are adapted to feed and clamp flat stock as well as angle iron.

Abstract: An assembly for the jaws of an article clamp. The assembly includes first body (23) receivable onto one jaw (11) of the clamp. The first body (23) has a first clamping face (25), and first support surface (26) to support the article. Fingers (31) are provided to removably secure the first body (23) to the one jaw (11) of the clamp. A second body (24) is receivable onto another jaw (12) of the clamp. The second body (24) has a second clamping face (27) cooperable with the first clamping face (25) to engage the article, and second support surfaces (28) to support the article. Fingers (31) also are provided to removably secure the second body (26) to the other jaw (12) of the clamp.

Abstract: A hand tool for mounting U-shaped joist hangers upon header beams to support the series of joists to be distributed therealong. The joist hanger itself is slid into the forward face of the tool body with its bottom transverse portion entering a rearwardly-extending slot from its front face and over a forwardly-extending projection adapted to align the tool and hanger with the bottom edge of the beam. Angle-section legs of the hanger extend upwardly from the transverse portion and lie flush against the sides of the tool. A spring-biased projection extends from the top of the tool above the bottom projection and hanger to clamp them to the header beam and permit the worker to use his hand for nailing the hanger to the header beam.

Abstract: A framing aid for use in the construction of a building comprises an elongated member having formed therein a plurality of transverse grooves for accepting the ends of studs and a longitudinal groove intersecting the transverse grooves for accepting a plate and maintaining it in contact with the ends of the studs for attachment thereto.

Abstract: A jig for welding mitered joints between members of molded plastic window and door frames, comprising four mutually positionable clamp assemblies, one to each corner of the frame, each of which comprises a pair of horizontal rests serving to support the members of the frame, and respective upwardly-projecting fences disposed transversely and parallel to the horizontal exit path followed by the frames, that register with the external faces of the rails and the uprights of the frame; each clamp assembly further comprises a pair of plates, located above the corresponding pairs of rests, that serve to hold the frame members fast against the rests as and when necessary. The fences disposed transversely to the exit path of the welded frame are embodied independently of the relative rests, and capable of movement between a first limit position, in which the rails are checked, and a second limit position in which the rails are freed and the fences themselves completely clear of the frame's transverse dimension.

Abstract: An assembly for the jaws of an article clamp. The assembly includes first body (23) receivable onto one jaw (11) of the clamp. The first body (23) has a first clamping face (25), and first support surface (26) to support the article. Fingers (31) are provided to removably secure the first body (23) to the one jaw (11) of the clamp. A second body (24) is receivable onto another jaw (12) of the clamp. The second body (24) has a second clamping face (27) cooperable with the first clamping face (25) to engage the article, and second support surfaces (28) to support the article. Fingers (31) also are provided to removably secure the second body (26) to the other jaw (12) of the clamp.