Abstract: First and second mirror image identical clamps clamp opposite edges of a nted circuit board along the length of those edges for holding the board during wave soldering of components to the board. Each clamp includes a support rail and a clamp rail wherein the support rail has a shoulder on which a portion of the clamp rail can abut. The clamp rail has a two walled groove which receives a corner of the board at an edge thereof for clamping that edge to the support rail. Screws couple the two rails and force them against the board edge.

Abstract: This invention is an improved concept of the clamp shown in U.S. Pat. No. 3,736,629, as issued June 5, 1973. This clamping device has two C-shaped arms, each of which is an assembly of two plate-like members of sheet metal. These two arm assemblies are pivotally retained at one end with the plate-like members in an overlay condition. A pivot pin has an enlarged center portion which acts as a spacer and has two eccentric cam areas sized and spaced to actuate apertures formed in one of the arm pairs. Shouldered rivets retain these arm assemblies in spaced array and a stop pin secured in this pivot pin has a length sufficient to engage a secured rivet. At one limit of movement of the stop pin, the cam areas move one arm assembly to a maximum clamping force and, at the other limit of movement of the stop pin, the cam areas are in a reduced-force application.

Abstract: A vise assembly, for use on a drill press having a vertical cylindrical column and a table with a flat upper surface substantially perpendicular to the column, has a mounting block slidably and rotatably mounted on the column and a frame slidably mounted on the mounting block for movement parallel to the flat top surface of the table. The frame includes a back plate, at least two pairs of rods connected to the back plate, fixed and movable jaws, one of the pair of rods being connected to the fixed jaw and the other of the pairs of rods being connected to the movable jaw. The jaws normally rest on the table. In the preferred embodiment, hydraulic cylinders, carried by the back plate, are connected to move the pair of rods connected to the movable jaw. In another embodiment, a manually operated screw arrangement is used to move one pair of rods relative to the other, to move the movable jaw toward the fixed jaw.

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 device for simultaneously compressing a row of resilient finger pairs on an article holding rack to facilitate placement and removal of articles. A pair of opposed, plate-like jaws are supported in the same horizontal plane by a pair of parallel, L-shaped side walls which are in turn supported by a support frame. One of the plate-like jaws is fixed and the other is moveable on a pair of bearing blocks, each of which travels on a horizontally positioned bearing way. Hand and foot actuators are provided for moving the moveable plate-like jaw adjacent to the fixed plate-like jaw to compress the finger pairs. The hand and foot actuators which are provided include a pair of counterbalanced dogleg lever arms which act on vertical plates fixedly attached to the under surface of the moveable plate-like jaw. The moveable jaw is first moved into position for compressing with the handle and then further moved to compress the finger pairs with the foot pedal.

Abstract: Wood clamp apparatus for preventing the bowing of wood stock during the process of joining a plurality of wood strips including an underlying support for supporting a plurality of longitudinally extending strips of wood which are supported thereon, a pair of clamping blocks, and mechanism mounting one of the clamping blocks for movement toward and away from the other of the clamping blocks to exert edgewise pressure on the strips and clamp the plurality of board strips therebetween, and anti-bowing mechanism for precluding the upward bowing of the strips out of the plane of the strips, when the clamping blocks are in the clamping position, including laterally extending hold-down mechanism spanning the upper surfaces of the strips, and mechanism coupled to the clamps for vertically moving the hold-down mechanism between a raised position for vertically moving the clamping mechanism between a raised inoperative position and a lowered strip-clamping position, for exerting downward pressure on the strips to clamp

Abstract: A combination woodworking bench and press for gluing veneered panels or assembling and gluing case good carcasses. A bench top of torsion box construction is supported by a trestle-type stand having rods or tubes for supporting movable pressing cauls and movable battens. Lower battens are supported on such rods during positioning in the press configuration, and work pieces are pressed between the bench top and movable cauls, which are also of torsion box structure. Pressure is applied by clamping the ends of pairs of battens positioned above and below the cauls and bench top.

Abstract: A bench mounted workpiece clamping straightedge to be used in conjunction with portable electric tools such as saws, routers and etc. or manual hand held cutting tools wherein a relatively vertically movable straightedge is utilized to clamp a workpiece firmly and presenting a straightedge with which to guide cutting tools across and or through said workpiece.

Abstract: A workpiece support structure includes a pair of elongated beams supported in transversely spaced parallel relation by first and second foldable leg structures. A first clamp mechanism on the first leg structure supports a first transversely extended guide member. A second transversely extended guide member is carried on a pair of trolley wheel clamps equipped with disengageable clutch mechanisms for fixing the trolley wheel clamps at selected positions on the beams. Thus the second guide member is longitudinally movable to engage a workpiece between the first and second guide members whereupon the first clamp mechanism is applied to clamp the workpiece therebetween. The disengageable clutches of the trolley wheel clamps are interconnected by a transverse actuator rod so that the clutches are easily simultaneously operated by one hand of a worker.

Abstract: The trimming apparatus and fixture for holding a PC board prior to and during trimming of an upper surface of the PC board utilizes a trimming blade rotated by a variable speed motor. This apparatus includes X and Y motion mechanism moved by hand grips that are spaced apart and cooperate with push button switches providing a safety control circuit. The X and Y motion mechanism employs linear ball bushings mounted and movable on hardened steel shafts. Removable holding fixtures are employed to hold and retain the PC boards during trimming. One holding fixture is used for PC boards that are not warped and not likely to warp. This fixture holds the PC board on three sides and a quick acting cam clamp is actuated to retain and release a PC board. Another fixture is adapted to hold and retain a PC board that is warped or likely to warp. Vacuum is used with a plurality of standoffs to establish the desired holding plane of this PC board.

Abstract: There is disclosed a work clamp and tool guide assembly which comprises a base plate, a crossbar secured to, and extending transversely across, the undersurface of the base plate, first and second upright posts, one each at opposite ends of the crossbar, a guide rail with distal apertures received over the first and second upright posts and locks to fixedly secure the guide rail at preselected heights. The workpiece is clamped between the guide rail and the base plate and can be oriented for right angle cuts by a fence which extends along at least one side of the base plate. A work tool such as a router, saw and the like can be guided across the surface of the workpiece with its edge against the guide rail.

Abstract: A panel clamp for preventing warping of a panel formed from edge-glued boards during gluing of said boards, including two-ended opposing jaw members for maintaining the boards in lateral registration, adjustment means at the end of each jaw member for adjusting the separation of the jaws and release means for quickly releasing and assembling the clamp.

Abstract: A form for taper planing elongated wooden strips of triangular cross section. The form includes a pair of elongated members, each having a beveled surface. The members are aligned with one another so that their respective beveled surfaces cooperatively define a generally V-shaped groove, but the members are free to move towards and away from one another so as to vary the width and hence the depth of the groove. Pairs of screws are disposed at intervals along the lengths of the members, the screws of each such pair being adjacent one another. One screw of each pair is arranged to draw the adjacent portions of the members towards one another and the other screw of each pair is arranged to urge the adjacent portions of the members away from one another so that the screws of each pair may be adjusted to accurately position the adjacent portions of the members while opposing and preloading one another.

Abstract: A jig for placement in a vise and receiving the beveled ends of a band saw blade preparatory to the joining of same as by silver soldering. The jig includes a shouldered upper edge which serves to align the blade end segments. A clamping member includes foot portions for blade segment engagement. The clamping member and jig main body define open areas for blade access and which prevent heat conduction from the blade. Springs urge the clamping member to a blade releasing, raised position. Clips on the main body retain the blade in place on a curved bottom wall of the main body to facilitate a filing operation removing excess solder from the blade joint.

Abstract: A clamp effort intensifier that multiplies the manual effort used for clamping vise jaws onto a workpiece through the use of a cam that actuates the vise jaws together to provide adequate clamping forces while substantially reducing the manual effort necessary to achieve a safe clamp force. The effort intensifier acts to load the vise jaw through a heavy spring which deflects as the jaws are loaded. The amount of deflection can be used to indicate the clamping force exerted on the jaws. An interlock to the machine tool used will prevent operation of the tool until the clamp force exceeds a desired level.

Abstract: A pair of work engaging jaws of a clamp device are interconnected by linkages forming part of a manually operable force multiplying mechanism. A movable work engaging element mounted by one of the jaws, is actuated by a grip lever from a retracted position into engagement with a workpiece. An over-center linkage transmits the actuating force against the resistance of a spring to prevent return of the grip lever from its actuated position. A release lever is actuated to cam the grip lever and retract the work engaging element.