Abstract: A toggle type punch drive apparatus having a strong output obtained by a simple structure so arranged that it drives a freely movable ram (1) used in punch driving. This toggle system (6) incorporates a first lever (11) that is linked to one end of the ram (1) so as to be freely rotatable, and a second lever (12) that is linked to the other end of the first lever (11) between its base end and free end so as to be freely rotatable and which is freely supported at the base end. The free end of that second lever (12) is linked to a nut (8b) of the feed screw apparatus (8) which is driven by a servomotor (7).

Abstract: A stamping and forming machine (10) is provided for performing stamping and forming operations on strip material (274). The machine includes a ram (26) that reciprocates toward and away from a base plate (14). The ram carries tooling (362) that engages mating tooling (364) on the base plate for performing the stamping and forming operations. A toggle mechanism (222, 224, 226, 232, 238) is coupled to the ram (26) and the drive shaft (40) by means of a connecting rod (70) that moves the toggle over center (250) and then back again every revolution of the drive shaft. This provides two ram strokes of different lengths for each revolution of the drive shaft (40).

Abstract: A cutting and shaping press comprises one or more drivers. The piston rod of the individual drive cylinder is connected to a hinged lever drive for a press ram. The drive cylinder is fixed on a bridge which connects two slide plates together. These slide plates are arranged inside the press ram and each have in the center a guide for a multiple pivot carrier. The press ram is open upwardly towards the drive cylinder and slide with its lateral surfaces, which are enclosed on all sides, along guides which are fitted in fixed positions on the inner sides of a press stand.

Abstract: A coining press is provided with a machine frame, a coining drive for slides and coining dies, an ejector coining die against which the coining die can be pressed with the interposition of the coining blank and can partially yield for this purpose, a drive for the ejector movement of the ejector coining die and one device respectively for feeding the coining blank and for removing the finished coined part. The coining drive has a coupling dwell gear which is hinged to a toggle joint gear. The coupling dwell gear has a connecting rod moved by an eccentric shaft, the longitudinal axis of the connecting rod extending substantially in parallel to the coining plane and the end of the connecting rod facing away from the coining die being hinged to a booster device. The toggle joint gear has three pressure lugs which, on one end respectively, are hinged to one another on a pin while the end of a first pressure lug is hinged to the connecting rod.

Abstract: A manually-operated rule bending and notching press producing a ram output mechanical advantage that is substantially than prior art manual rule bending and notching presses. This is accomplished by providing a toggle linkage that drives a crank-and-pivot mechanism. The input handle is able to travel through at least about 100 to 180 degrees of rotation as the ram moves through its full travel, however, the handle still moves through the most usable 90 degrees of rotation while the ram is moving through the most highly loaded final 1/2 to 3/4 inch of its stroke. The crank and pivot mechanism provides a substantially linear force multiplication during this last part of the press ram stroke because the crank does not pass or near the top dead center of either the input or the output linkage. Accordingly, variations in output mechanical advantage may be effected simply by altering the radii of the input and output crank pivots.

Abstract: For use in forming apparatus having a die element and a roll platen element that have parallel, facing, flat, and preferably horizontal surfaces and each of which has an associated mounting structure, toggle assemblies to alter the distance between the flat surfaces of those elements by moving one or both of them, and to positionally fix those surfaces at desired distances from each other. Each toggle assembly includes an obtusely angled toggle link, one end of which is pivotally interconnected with an associated motion actuator means. A second toggle link that is positioned across the exterior angle of the angled toggle link has one end that is pivotally affixed to the angled toggle link at a first pivot point located at the angle of the angled link. The other end of the second toggle link and the other end of the angled toggle link are pivotally interconnected to the element and with its associated mounting structure, in either order, at second and third pivot points.

Abstract: A pressing apparatus for compressing large articles into small articles which includes an upper plate and a lower base plate, a pressing plate disposed between the upper plate and the lower base plate, the pressing plate being suspended from the upper plate by a plurality of foldable link members which are pivotally connected to the upper plate and to the pressing plate at opposite sides, a piston-cylinder connecting at least some of the foldable link members disposed at opposite sides of the upper plate and pressing plate, and a device for operating the piston-cylinder, whereby the back and forth movement of the piston-cylinder causes the foldable link members to fold on themselves to a closed position or extend to an open position whereby the pressing plate is raised and lowered relative to the upper plate and the lower base plate.

Abstract: In a transfer feeder in which transfer bars are driven in a feeding direction by swinging a feed lever (4) through a cam-follower (5) by a feed cam (2) mounted to a camshaft (1) rotated by power taken out of a transfer press, a control circuit controls air pressure of a rear cushion cylinder (6) pushing the feed lever to the feed cam to an optimum value in response to a production speed of the press.

Abstract: A crimping tool includes first and second jaws (1, 2) which are journalled at a first pivot point (5) for pivotal movement relative to one another. A forward end of a first handle (6) is rigidly connected to the first jaw (1), while a forward end of a second handle (7) is pivotally connected to the second jaw (2) at a second pivot point (8). A linkage construction (9) extends obliquely rearwards from a third pivot point (10) located on the second handle (7) rearwardly of the second pivot point (8), up to a fourth pivot point (11) on the first handle (6). The distance (D) between the first and the second pivot points (5, 8) is 0.30-0.35 times the distance (A) between the first and the fourth pivot points (5, 11), the distance (C) between the second and the third pivot points (8, 10) is 0.20-0.25 times the distance (A) between the first and the fourth pivot points (5, 11), and the distance (B) between the third and the fourth pivot points (10, 11) is 0.62-0.

Abstract: A press with both prehemming and final hemming tools or steels each driven by the same prime mover. Each steel is mounted on a separate carrier driven through separate toggle joints to advance and retract the steels for prehemming and final hemming of an upturned flange along an edge of a steel panel. To facilitate synchronizing the operation of at least two presses, the prime mover may be a screw and servo motor drive assembly.

Abstract: A drive mechanism for a hemming apparatus includes a pneumatic cylinder pivotally mounted to a frame which is suspended from a bed on which the workpiece can be positioned. The reciprocating shaft of the pneumatic cylinder is pivotally connected to the knee of a toggle joint. One end of the toggle joint is pivotally connected to the frame, and the other end of the toggle joint is pivotally connected to a lever. The fulcrum of the lever is pivoted on the frame, and the other end of the lever is connected to a draw rod. The draw rod is adapted to pull a movable member into operative engagement with the workpiece in one or two stages to complete the hem.

Abstract: Forming die assembly 18, 20 for carrying out a U-ing operation on a flat blank 58a has a forming tool 80 in one 18 of two ram assemblies 18, 20 which cooperates with a second forming tool 82 to perform the U-ing operation. During movement of the ram assemblies 18, 20 towards each other, the forming tool 80 is retracted and remains stationary during a final portion of the stroke of the ram assembly 18 in which it is carried. The forming tool is maintained in an extended position by a toggle mechanism during an initial portion of the stroke and the toggle is broken during a final portion of the stroke thereby to permit the forming tool to retract relative to the tooling assembly. On the return stroke, the forming tool is restored or shifted to its extended position by a biasing spring.

Abstract: A hand-operated batten seamer tool (30) for folding a pair of opposed standing seams (96) over to a pair of double seams. A pair of arms (38) pivotally mounted to a common pivot point (50) to rotate a pair of arms (38) pivotally mounted to a batten cap plate (36) that rests on the batten cap (90). Force applied to the handles (32) is transmitted through a force multiplying mechanism comprising upper link arms (78), side plates (76) and lower link arms (80). A pair of cleats (70) engages the seams (96) during the folding operation to hold the batten seamer tool (30) in engagement with the batten cap (90) and support block (88) to form a pair of tight and leakproof batten seams (86).

Abstract: This invention relates to processes and devices for mechanically crimping terminals on conducting wires and for adjusting with precision the height of crimping. A device according to the invention is of the type in which a terminal is crimped on the end of a conducting wire by means of crimping tools which are fixed on the plates of a press. The mobile plate is displaced vertically thanks to two articulated connecting rods, horizontally displacing the point of articulation by means of a jack. To adjust the height of crimping, the upper articulation is placed on a slide block which is displaced vertically by means of a conical wedge which is displaced horizontally by means of a percussion tool into an opening having an inclined lower edge. One application of this invention is the mechanical crimping of terminals on wires in a work station equipping an automatic wiring machine.

Abstract: Apparatus for bending a margin flange (5), which projects at an angle to a surface on a workpiece (2), against the workpiece. The apparatus includes a bending tool (6) which is mounted on a tool holder (14) carried by a parallelogram mechanism (7-12) for movement in relation to a stand (1) on which the workpiece (2) is placed. A drive arrangement (17) is drivingly connected to the tool holder (14) by a linkage (21-27). The tool holder (14) includes a main part (13) connected to the parallelogram mechanism (7-12) and a movable part (15) which is pivotal about a journal pin (16) on the main part. The journal pin (16) is substantially parallel with the axes (7, 8, 11, 12) of the parallelogram mechanism. The movable part (15) carries the tool (6) and by a resilient element (32) is urged towards a starting position with a nose of the tool (6) biased away from the workpiece (2).

Abstract: The invention relates to an apparatus for bending a flange against a workpiece (3). A preliminary bending tool (5) on a first tool holder (7) is carried by a linkage mechanism (8-13) for movement in relation to a stand (1). A bend finishing tool (6) on a second tool holder (14) is carried by a parallelogram linkage mechanism (15-20) for movement in relation to the stand (1). The first linkage mechanism (8-13) forms a parallelogram having a line between the axes (10,11) of the links extending perpendicularly to a line between the axes (17,18) of the second linkage mechanism (15-20). One single drive member (21) is connected to the parallelogram linkage mechanism (15-20) to drive the second tool holder (14). A drive link (28) is connected between the parallelogram linkage mechanism (15-20) and the first tool holder (7) to drive this.

Abstract: An upsetting press for swaging wire segments into balls or the like. The press includes a fixed matrix, a stamp holder provided for a stamp and mounted on a machine frame so as to be displaceable in the stamping direction, a cam drive mechanism for the stamp holder, and a gripper device provided for the wire segments. The cam drive mechanism is a double cam that is rotatably mounted in the machine frame. An angle lever is pivotably mounted in the machine frame. Follower rollers are carried by the angle lever and run on the double cam. A presser carriage is provided for the stamp holder and is guided in the machine frame in such a way that it can move back and forth. A knee lever is provided that has two arms, one of which is connected to the machine frame and the other of which is connected to the presser carriage. A connecting rod operatively interconnects the angle lever with the knee lever.

Abstract: A manual tool, drivable by a rotary motor, for treating work pieces by pressure, such as crimping contact terminals on electrical conductors, comprises in a tool body, on which a recess for the work piece is provided, a slidably mounted stamp member and a force transforming mechanism which has an input shaft drivable by the motor in rotary motion, and an output member for driving said stamp member through a tuggle linkage in a reciprocating motion toward and away from said recess.

Abstract: The invention relates to an articulated lever press consisting of a press stand (1.1) and a frame-shaped press slide (2.1), the slide (2.1) possessing a hydraulic cylinder drive (2.12) which is arranged on it and is connected to the multi-articulated support (2.7) guided in the center of the press in the slide (2.1). At least two connecting rods (2.8) are movably arranged on the multi-articulated support, the other ends of the connecting rods each engaging one of the two articulated levers (2.10) or (2.11) which are mounted on the slide (2.1) and on the press frame (1.1) so that their height can be adjusted.The object is essentially to keep the working range of the slide (2.1) adjustable, irrespective of the slide travel and while maintaining slide guidance.It is proposed that the press stand (1.1) be a twin-stand frame partially closed even at the front end. The working range of the slide (2.1) in the stand (1.1) is supported and adjusted by synchronously driven shafts (2.

Abstract: Stamping and forming machine of the type having opposed tooling assemblies which are reciprocable towards and away from each other has toggle mechanisms for moving the tooling assemblies along their paths of reciprocation. Each toggle mechanism has one toggle link pivoted to a tooling assembly and another toggle link pivoted at a fixed pivot location. The fixed location pivots are adjustable in order to control the position of the tooling assemblies when they are in their closed positions. Additionally, adjustable wear plates are provided in the passageway in which the tooling assemblies are mounted. Advantages achieved include reduced manufacturing cost for the machine, potential for high operating speeds, and compactness when desired.

Abstract: Two embodiments of fulcrum apparatus useful for easy and efficient dent pulling during automobile body repairing are provided in the invention. The apparatus works efficiently in most any position and comprises a first embodiment having dual levering arm and dual pivotal feet and a second embodiment having a single levering arm and a single foot. Both embodiments operate by pulling on a centrally aligned fixture affixed with a hook. The hook is designed for hooking attachment to a pull rod. The pull rod is passed through a series of aligned washers which are welded in the dent area of a damage auto body. When manual pull is applied to either the dual levers on the first embodiment or the single lever on the second embodiment, a controlled force is applied to the aligned washers realigning the dented area with the original surface of the damaged car body. Padded pivotal feet allows use of the apparatus in door areas and on other irregular car body surfaces.

Abstract: A brake press including a stationary bar, a translating bar, a disk rotatable about a fixed, stationary axis, a first set of linkage interconnecting one longitudinal end of the translating bar with the disk, and a second set of linkage interconnecting the other longitudinal end of the translating bar with the disk. The rotation of the disk in a first direction acts through both sets of linkage to translate the translating bar toward the stationary bar, and the rotation of the disk in a second direction acts through both sets of linkage to translate the translating bar away from the stationary bar. The disk may be selectively rotated in either direction or maintained in a stationary position by one or more hydraulic rams. The flow of hydraulic fluid to the hydraulic rams is controlled by a foot pedal which is biased in a position which will cause the hydraulic rams to rotate the disk so that the translating bar is moved away from the stationary bar.

Abstract: To drive two toggle lever (29,29') of a press, in particular a high frequency cutting press with at least 400 strokes per minute, two separate but mutually synchronized drives (101,101') are provided to ensure a uniform, non-wobbling motion of the tool carrier (5). The drives (101, 101') can be rotary or linear drives and are used to drive the toggle levers (29, 29') during at least part of their motion. The energy storage (200) ensures a low energy consumption, since it stores the braking energy and supplies it again to the drive during acceleration.

Abstract: A press for performing a work operation on a workpiece including a yoke defining a central bore, a ram mounted for reciprocal movement in the bore and carrying a fabricating tool on one end of the ram, an air cylinder secured to an end wall of the yoke and having a piston rod passing through the end wall of the yoke into the bore, and a force multiplying mechanism interconnecting the free end of the piston rod and the ram and operative to move the ram to a working position and thereafter multiply the force applied to the ram to facilitate the performance of the work operation.

Abstract: A toggle-type die-fastening apparatus has a movable platen that carries one mold part and is supported by and guided along a plurality of tie bars whose one ends are fixed to a fixed platen on which another mold part is mounted. The other ends of the tie bars are supported by a toggle support, and a toggle mechanism is disposed between the toggle support and the movable platen for pressing the mold part carried by the movable platen against the mold part mounted on the fixed platen. A die-fastening force adjusting nut is threaded onto the end portion of each tie bar that is closer to the toggle support so as to bear the reaction of the die-fastening force generated by the toggle mechanism. An adjusting cylinder is formed in this portion, and it is connected to a hydraulic circuit so that the pressure within each of the cylinders is controlled by a pressure adjusting valve in such a manner as to correspond to a die-fastening force set by a setting device.

Abstract: A method and apparatus for forming pierce type or pierceless clinch joints in two sheets of material, such as sheet metal, employs a drive system which eliminates the need for camming mechanisms and periodic adjustment of worn cams. A die and anvil are relatively moveable and are displaced relative to a punch by means of a single drive lever which is driven by the output shaft of a hydraulic or pneumatic cylinder. A slide which drives the die is pivotally connected both to the drive lever and to a second slide which drives the anvil. The anvil slide is pivotally connected to the drive lever. The anvil and die are displaced in synchronism with each other and with the punch to form a clinch joint in a single workstroke of the cylinder motor.

Abstract: The die stamping and punching tool has a press upper part (18) and a tool plate (16) and a press lower part (13) with a stamping or pressing table (14) and counterpressure plate (15), the lower part being carried by toggle levers (11, 11') which are moved by a cam mechanism. The controlled rollable stamping or pressing table (14) with the counterpressure plate (15) and rolling profile has a device for controlling the stamping table movement comprising toggle levers (11, 11') and cam disks (12, 12') driving the same, the cam disks (12, 12') having a shape (A,B) related to the rolling profile. The stamping table can be guided by a further cam disk (29). This controllable stamping table guide preferably comprises a table guide lever (28) pivotable about a fulcrum. One end carries a slider (27) sliding in the stamping table and the other end is driven by the cam disk (29), which also has a shape (C,C') related to the rolling profile.

Abstract: The invention relates to an articulated lever press consisting of a press stand (1.1) and a frame-shaped press slide (2.1), the slide (2.1) possessing a hydraulic cylinder drive (2.12) which is arranged on it and is connected to the multi-articulated support (2.7) guided in the center of the press in the slide (2.1), and at least two connecting rods (2.8) are movably arranged on the said multi-articulated support, the other ends of the said connecting rods each engaging one of the two articulated levers (2.10) or (2.11) which are mounted on the slide (2.1) and on the press frame (1.1) so that their height can be adjusted.The object is essentially to keep the working range of the slide (2.1) adjustable, irrespective of the slide travel and while maintaining slide guidance.It is proposed that the press stand (1.1) be a twin-stand frame partially closed even at the front and end. The working range of the slide (2.1) in the stand (1.1) is supported and adjusted by synchronously driven shafts (2.

Abstract: A flaring apparatus including at least one of die member positional adjustment apparatus and a defective rim element ejecting apparatus. The positional adjustment apparatus includes a connecting shaft provided between a die member mounting block and a link mechanism for moving the mounting block. The connecting shaft has shaft portions, axes of which are radially offset from each other. By rotating the connecting shaft, the die member position can be adjusted. Therefore, there is no need to provide a shim between the die member and the mounting block. The defective rim element ejecting apparatus includes a pressure sensing switch which can detect an increase in pressure within a space defined by a rim element and the die members during flaring.

Abstract: A tube expanding tool is disclosed which is of the character comprising a body having a fixed handle and a pivotal handle by which tapered drift pin is displaced relative to radially expandable jaws mounted on the body. A rigid link member is pivotally connected between the drift pin and pivotal handle to displace the drift pin to expand the jaws and to provide positive withdrawal of the pin from the jaws following a tube expanding operation.

Abstract: A mandrel rod with or without rolled tubes thereon is held by four guide structures, two arranged above and two below with respect to the axis of rolling, and each being arranged on a lever, these levers are arranged in pairs to both sides of the rolling axis, and they are particularly interconnected and connected to a common drive to permit common radial retraction of the guide structure; these guide structures have basically three different positions, one of full retraction permitting a mandrel rod with rolled tubes thereon to be removed by lifting while simultaneously a fresh mandrel rod is placed into the rolling axis from below; in a second position of the guide structures they engage a mandrel rod in the rolling axis, and in the third position they form-fittingly engage a hollow on the mandrel rod in the rolling axis.

Abstract: A radial press for workpieces (26) having a cylindrical outer surface, comprises toggle levers (10) movable in a radial plane and having inner and outer ends. The radial press has a press casing (6) comprising at least two parts (18, 19) and having radial guides (5) and guide bodies (4) for a plurality of dies disposed about the axis of the outer surface of the workpiece and driven by toggle levers (10). The press casing has a compression ring (8) guided concentrically to an axis (A--A) with outer pivot points (9) for the toggle levers. A circumferential rim (34) is provided on the casing parts on both sides, each rim overlapping the compression ring (8), and the compression ring (8) being supported thereon through rotational guides (20). The casing parts form one unit clamped together by bolts passing through both casing parts.

Abstract: An apparatus for straightening a rail spike or the like includes a pair of said facing support arms mounted for pivotal movement about spaced axes on a frame, male die blocks mounted on the arms for movement therewith toward confronting angularly related surfaces of a female die member. A plurality of such female die members may be mounted on a rotatable support table such that the support surfaces of the female dies define radially extending angular grooves. The support table may be incrementally rotated for sequentially effecting a spike straightening operation, the table being locked at the spike straightening station and thereafter automatically ejected.

Abstract: A diminishing arm toggle linkage has the work site within the toggle geometry and thereby provides exponential force enhancement. In preferred embodiments the mode of operation shifts on demand from a light-load-pivoting mode to a heavy-load-rolling element mode thereby easing operation and reducing friction and wear so as to provide prolonged durability and continuing dimensional accuracy. When the toggle linkage is embodied in a crimping tool an optional anti-reversing ratchet assembly prevents the tool from opening during use until a crimp is completed.

Abstract: A press for assembling a fastener or the like to a plate or the like comprises a frame and an anvil assembly carried by the frame. A linkage mechanism assembly is carried by the frame and includes two links. A ram assembly is operatively connectable to one of the two links. A first fluid operated cylinder and piston assembly holds the ram assembly in a raised position. A first switch terminates the flow of fluid to the first cylinder, thereby permitting the ram assembly to drop. A second fluid switch is activated after a sufficient drop of said piston to energize a second fluid operated cylinder and piston assembly for extending and retracting said links, and thereby move one of said links into force transmitting relationship with said ram assembly, to thereby cause said ram assembly to move forcefully down toward the fastener for the purpose of installing the fastener into the plate.

Abstract: This invention is directed to a power operated crimping tool having two movable links. On the lower end of one of the movable links there is a stud and on the lower end of the other movable link there is a recess. There is a power operated movable piston which operatively connects with a plunger. The plunger connects with toggles and in turn the toggles connect with an appropriate movable link. The operator can control the application of power to the power operated movable piston to move the pistons and thereby move the plunger and thereby move the toggles and the two movable links.

Abstract: A toggle press comprises a main frame and a tool holder mounted for reciprocal movement relative to the frame by power means actuating an intermediate toggle arrangement comprising two toggle mechanisms acting in series.

Abstract: A C-frame press includes a C-shaped frame having a crown part and a bed part defining an opening therebetween, and spacers positioned in the opening and being sufficiently long for urging the crown part and the bed part apart in the vertical direction a distance sufficient to cause the frame to exert on the spacers a load which is at least a substantial part of the normal maximum press load exerted by the press on a workpiece. The press further has a slide reciprocal between the crown part and the bed part, a main shaft having a flywheel thereon and positioned laterally of the slide within the frame, eccentric discs rotatably mounted within the frame and driven from the main shaft, connecting rods extending substantially horizontally from the eccentric discs towards the upper portion of the slide and reciprocated by the eccentric discs, and a toggle mechanism mounted between the slide and the crown part and having a central shaft portion to which the connecting rods are connected.

Abstract: A press and press method wherein an article is shaped by displacing a tool thereagainst in a plurality of time-spaced main strokes separated by intervals in which the energy for the main strokes is stored in a force-storing element such as a rod under tension and during these intervals, the tool continues to be advanced against the article by an auxiliary motor. The apparatus utilizes a lever pivotally connected to a support, to the force-storing element and to the tool. The main drive motor acts on this lever.

Abstract: A press for assembling a fastener or the like to a plate or the like comprises a frame and an anvil assembly carried by said frame. A toggle mechanism assembly is carried by the frame and includes two toggle links. A ram is operatively connectable to the toggle links. A first pneumatic cylinder and piston assembly holds the ram in a raised position. A first pneumatic switch terminates the flow of pressurized air to the first pneumatic cylinder, thereby permitting the ram to drop by gravity. A second pneumatic switch is activated after a sufficient drop of said piston to energize a second pneumatic cylinder and piston assembly for extending and retracting said toggle links, and thereby forcefully lower the ram to install the fastener or the like to a plate or the like.

Abstract: A hand tool adapter for bench operation comprising a frame including a cradle adapted to receive one handle of a two-handle hand operated tool. The adapter includes apparatus for securing the handle in place in relatively fixed relationship with the base. An actuator arm is coupled via a linkage to the base and includes a receiver for the other handle of the hand operated tool. The base positions the jaws or working portion of the hand tool to the front of the base available for clearer visibility by the operator. The linkage provides mechanical advantage for the operator to minimize and tend to standardize the force required for actuation of the hand tool. The handle of the apparatus is dimensioned and positioned to provide a clearly defined range of movement from unoperated to operated positions. An adjustable stop limits travel of the operating handle.

Abstract: A toggle-joint press or machine tool is easily adaptable to one of several common press drive mechanisms. Two forms of piston-in-cylinder (hydraulic or pneumatic) drives are disclosed as well as one form of a crank type drive.

Abstract: An apparatus for manufacturing pulley rims has a first press, for initially shaping a pulley rim from a pulley rim blank, a second press, for final shaping of the pulley rim, and a clamping assembly for holding and transporting a pulley rim blank between the first press and the second press. Each of the first and second presses include a pair of dies with opposing frusto-conical portions, one of each pair of dies having a cylindrical forward extension which is adapted to extend into a central bore in the other of the pair of dies. The clamping assembly has a pair of semi-cylindrical clamping members with opposed clamping surfaces shaped to conform to the circumference of a finished pulley rim.

Abstract: A hand crimping tool having a first handle and a second handle connected to the first handle by a main pivot pin and a pair of jaws connected to the handles for movement together upon pivoting of the handles about the main pivot pin. A signal mechanism is provided to produce a sensory perception to the user of the completion of a predetermined crimping movement of the jaws.

Abstract: A bending tool for bending a bendable member. The bending tool includes first and second engaging members each having an engaging surface for engaging a portion of the bendable member. A first support member supports the first engaging member and a second support member is provided for supporting the second engaging member. Mounting means mount the second support member for relative movement with respect to the first support member between an open position in which the first and second engaging members are spaced from one another a first distance, and a closed position in which the first and second engaging members are spaced from one another a second distance less than the first distance. Pivotal mounting means are provided for pivotally mounting the second engaging member on the second support member so as to be pivotable with respect to the second support member independent of relative movement of the first and second support members.

Abstract: A fluid pressure operated press has a drive piston which is movable in a cylinder and has a drive surface side and an opposite return surface side which is connected with a ram which operates on a workpiece. An accumulator is connected to the respective cylinder spaces disposed on the respective drive and return surface sides through a control so as to effect the movement of the piston in a drive direction by admission of a fluid pressure source and pressure from an accumulator in a selected amount to the cylinder space on the drive surface side. The return of the drive piston is effected by applying a fluid pressure to the return surface side. A difference in the areas of the return surface side of the drive piston and the combination of the drive surface side with a central area surface associated with the drive surface side, defines an effective piston area.

Abstract: A toggle mechanism pinches a metal tube and maintains the tube in a pinched condition, without fracturing. The toggle mechanism includes a plunger translatable along a longitudinal axis, as well as a pair of links pivoted about a common axis extending through an end of the plunger. One of the links also pivots about a fixed axis. A free end of the other link carries a push link which the other link translates at right angles to the plunger longitudinal axis. First and second sides of the tube bear against a first stop block and are engaged by the push link when a compresson spring, attached to the plunger, is suddenly released to irreversibly drive the plunger along its longitudinal axis so the pivot point of the two links is driven to an over travel position. At over travel, the free end of the push link and the stop block abut against opposite sides of the tube to pinch them together.

Abstract: Method of making at least two different electrical interconnections with at least two wires extending from windings supported on a dynamoelectric machine core. The method includes moving the core, windings, and at least two wires toward a wire connecting device; orienting and positioning a first one of the at least two wires relative to the device; and thereby conditioning the device to establish a first one of at least two different connection configurations. A first electrical interconnection involving a first wire and having a first connection configuration is formed. A second winding lead then is oriented and positioned relative to the device, thereby to condition the device to form an interconnection having a second connection configuration, and such interconnection is made. Indicia that indicate the relative orientation of the stator assembly (or parts thereof) are utilized to condition the device to establish connections of desired different configurations.

Abstract: A power crimping tool especially for use with a fitting of ring shape having a pair of oppositely extending fins on a ring diameter, has a base on which is an extending anvil with a first planar surface having a first die configuration therein. Pivoted on the base is a lever generally overlying the anvil and having a second planar surface having a second die configuration therein. A power driver on the base connects to the lever through a pair of toggle links having pivot pins interconnecting the toggle links themselves, connecting one of the toggle links to the lever and connecting the other toggle link to an adjustable mount for setting the toggle links slightly away from a straight line in one extreme position and so positioning the first and second planar surfaces a predetermined distance apart. There is a spring for return motion of the lever and there are guides for confining the lever laterally. There is also a protected manual control on the base for regulating the power driver.

Abstract: Apparatus for joining together two wires by deforming a crimping clip around the wires. The apparatus has a pair of crimping jaws and a support member for the clip, the jaws and support member moving into a crimping position to deform the clip around the wires. The jaws and support member are moved by a toggle linkage which develops an output force which varies with the condition of the toggle and increases as the jaws and support member move toward the crimping position.