Abstract: The balancing weights are hingedly mounted at their lower ends to link rods. These link rods are hingedly mounted to an extended section of first rods. At opposite ends the balancing weights are hingedly mounted to reversing levers that in turn are hingedly mounted to second rods. The first rods and the second rods are supported on a common eccentric sleeve. Accordingly, the drive of the balancing weights does not come from structural members of the machine which are directly mounted to the ram. Accordingly, no mass forces and oscillations of the balancing weights and of the structures driving same can be transmitted onto the ram. Conclusively, the moving sequence of the ram and accordingly the cutting or embossing action is no longer influenced detrimentally such that the quality of a respective product produced is improved.

Abstract: A control apparatus and method for progressively fracturing a workpiece from a material sheet in a press in which a ram is progressively advanced through the thickness of the material sheet in discrete steps, each of the discrete steps including an advance of the ram into the material sheet a predetermined distance less than the total thickness of the sheet, a stopping of the advance of the ram, a relief of the pressure built up in the press due to the pressurized advance of the ram and a subsequent advance of the ram through the material sheet. A distance measuring transducer generates an output indicative of the position of the piston of the cylinder and the ram during movement of the ram. A controller, in response to a stored control program and the output of the distance measuring transducer, controls the operation of fluid valves to supply pressurized fluid to the cylinder to reciprocate the ram.

Abstract: A form tool built to be used in a single station of a turret press machine for the sheet metal industry that comprises a punch body rigidly attached to an adjustable form tool head. The adjustable form tool head is quickly adjustable for different forming operations and for different material thickness. The depth of the forming or shaping operation is determined by the length of the punch head. This length is adjusted by lifting a spring loaded outer collar that is keyed to a hardened threaded punch driver. The length is increased or decreased by rotating the punch driver in a clockwise or counter-clockwise direction. The adjustment is made in small increments and permanently locked when the spring loaded collar is released and seated on two locking pins located on the punch head base.

Abstract: A pusher rod extends lengthwise through the eccentric shaft. An additional disk clutch is located inside of the flywheel, which disk clutch is connected to a shaft section, which engages the pusher rod via a screw thread connection. This allows the drive of the punching press to translatorically shift the pusher rod via the further disk clutch. The pusher rod operates the movement of a locking pin, which locks the eccentric shaft to the eccentric bushing by a corresponding translatoric movement. The pusher rod operates furthermore a braceable coupling disk which transmits the driving force from the eccentric shaft to the drive apparatus of the workpiece feed drive. In order to operate these control units when adjusting the stroke of the press it is merely necessary to operate the machine drive in one or the other sense of rotation causing a corresponding closing or opening of clutches and locking members.

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: The punch press with a control mechanism for the displacement of a punch tool carriage and a punch tool mounted therein comprises a machine frame, a punch tool carriage movable up and down in the machine frame, a die-bearing member having a workpiece receiving portion mounted on the machine frame positioned opposite the punch tool carriage, a stripper on the machine frame adjustable in height for different workpiece thicknesses and a control mechanism having a plurality of controlling element pairs including a plurality of control cams and associated control switches.

Abstract: A lead forming apparatus suitable for use in forming the leads of a semiconductor device is disclosed. The apparatus has a housing for supporting a stationary lower mold half, a support plate arranged to freely move with respect to the housing for supporting a movable mold half in opposition to the lower mold half, a moving device for moving the support plate to cause the movable mold half toward and away from the lower mold half, and an adjusting device for adjusting the position of the support plate with respect to the moving device. The moving device has a crankshaft, a driving device for rotating the crankshaft about its axis, and a coupler transmitting the rotation of the crankshaft to the support plate as a linear motion. The apparatus having the above-described arrangement can be operated with a reduced noise level and a reduced impact and, furthermore, achieves good operability.

Abstract: A stroke control has an eccentric member fitting on an eccentric member mounting portion of a drive shaft and the eccentric member is at an eccentricity with respect to the drive shaft and has sliding surfaces which are in sliding engagement with the eccentric mounting portion. A connecting rod rotatably carried by the outer peripheral surface of the eccentric member and swingably connected to the slide. A gear shaft extends through the eccentric member mounting portion and has spline-type gear teeth on end portions thereof, the gear shaft being rotatably supported by the eccentric member. A plurality of screw rods are arranged in parallel with the gear shaft such as to extend through the eccentric member mounting portion, the screw rods being fixed to the eccentric member. Gears screwed to the screw rods and meshing with the spline type gear teeth on the gear shaft, the gears contacting the eccentric member mounting portion.

Abstract: A punching device for automatic punching machines for the punching of paper, cardboard and the like, comprising: a driving mechanism for a top shoe; such as a rocking lever drive, elliptical cam drive, or wedge-form transmission; a stationary bottom shoe supporting a counter-punch; a movable top shoe supporting punch knives; and a gripper bar arrangement for intermittent forwarding through the punching device of sheets to be punched wherein the drive mechanism for the top shoe is located between the top shoe and a yoke which is connected with the bottom shoe through prestressed tie rods.

Abstract: A press with a stroke control device has a drive shaft having an eccentric member mounting portion with an eccentric member thereon, the eccentric member is at an eccentricity with respect to the drive shaft and has sliding surfaces which are in sliding engagement with the eccentric mounting portion, a cross slide supporting the eccentric member, and a slide which surrounds and supports the cross slide therein, the slide being slidable while supporting the cross slide which moves laterally when the eccentric member rotates with the drive shaft.

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 crankshaft mechanism for use with a press having a slide member which comprises an eccentric crankshaft having first and second cylindrical portions. The first portion is rotatable within a housing about a longitudinal axis and the second portion, of greater diameter than the first portion, has a center which is displaced radially from the longitudinal axis. An eccentric sheave is rotatably mounted on the outer circumference of the second portion of the crankshaft, and a connecting member is rotatably mounted on the outer circumference of the sheave. The second portion of the crankshaft, sheave and connecting member are provided with first, second and third radial bores respectively which are in alignment when the crankshaft is at its bottom dead center position. A locking pin slides within the radial bores and is displaceable by an actuator to a first position in which the crankshaft is connected to the sheave and a second position in which the sheave is connected to the connecting member.

Abstract: A device for adjusting the shut height of a press includes a rotatable dial (16) interposed between a ram mounting block (6) fixed to a press ram (2), and a tooling ram (14). The dial (16) is keyed to a screw bushing (12) which is rotatable in a screw threaded bore in the block (6) for vertical movement relative to the block (6). Facing surfaces (46 and 48) of the block (6) and the dial (16) are formed with opposed helical ramps (54 and 56, and 58 and 60). The angular position of the dial (16) is adjustable to cause the ramps (54 and 56, and 58 and 60) to cooperate to alter the distance between ramps (2) and 14) to adjust the shut height of the press.

Abstract: To eliminate defects such as burr, rollover, sags, scar, etc. from cut-off surfaces of a workpiece in a turret punch press, for instance, a novel height-different punch formed with a lower front edge, an upper rear edge, and an intermediate edge extending between the two edges is used for the punch press. While feeding the workpiece on a horizontal plane in a predetermined direction, the punch is struck by a striker at a first stroke so that the lower front edge thereof cuts off the workpiece partially in cooperation with a die; at the succeeding strokes so that the intermediate edge thereof cuts off the workpiece mincingly and curls refuse within a recess of the die; and at the last stroke so that the upper rear edge thereof cuts curled refuse away from the workpiece to complete a multistroke punching operation.

Abstract: A punching device for automatic punching machines for the punching of paper, cardboard and the like, comprising: a driving mechanism for a top shoe; such as a rocking lever drive, elliptical cam drive, or wedge-form transmission; a stationary bottom shoe supporting a counter-punch; a movable top shoe supporting punch knives; and a gripper bar arrangement for intermittent forwarding through the punching device of sheets to be punched wherein the drive mechanism for the top shoe is located between the top shoe and a yoke which is connected with the bottom shoe through prestressed tie rods.

Abstract: A first eccenter sleeve allocated to the drive of the devices operative for the balancing of masses is drivingly connected to the eccenter shaft by means of a displaceable locking bolt. The first eccenter sleeve is provided with pins and slide rings engaging into slots in the second eccenter sleeves. The second eccenter sleeves are connected via punch connecting rods to the ram of the machine. Slides are supported in the machine frame, which slides can be moved into slots provided in the second eccenter sleeves. Accordingly, all three eccenter sleeves can be held against rotation on the eccenter shaft. The drive connection between eccenter shaft and all eccenter sleeves proceeds accordingly via one single connecting member, namely the locking bolt. And this locking bolt operates together with one eccenter sleeve. Accordingly, no splined shafts which must be machined extremely precisely but are prone to knock out during operation are necessary.

Abstract: An elbow lever sheet metal cutting press equipped with a pressure medium cylinder drive located between elbow lever systems, which suspend the press ram from the press frame. Adjustable lateral guides are attached along the columns of the press frame. A partition wall is located between the press frame and the press ram. Also, a piston rod guide is attached to the partition wall. These structures ensure the straight movement of the press ram. The distance between the lower end of the partition wall and the press table is as short as possible to minimize frame vibration. The inclusion of a box girder and the partition wall keeps the press table horizontally and vertically rigid.

Abstract: An eccentric press which can be constructed a single connecting rod machine or a twin connecting rod machine is described. The press includes a stroke adjustment means having a support lever which is articulately connected at the joint between the two portions of a lever arrangement. The articulation joint is guided on an adjustable path of movement and the foot point of the support lever is guided variably in its position on a circular arc, the center point of the circular arc coinciding with the position of the articulation point which corresponds to the bottom dead center of the ram. As a result, a change in the ram stroke does not change the bottom dead center of the ram, only one ram stroke being executed per connecting rod revolution.

Abstract: A cable cutter and stripper uses fixed and moving plates, each having aligned orifices. The moving plate orifices have sharpened edges and are orbited in a plane parallel to the fixed plate to cut through the cable insulation. The radius of orbit is adjustable.

Abstract: A sign making machine is provided comprising a frame and a power unit attached to the frame. A hydraulic cylinder is also attached to the frame and is hydraulically connected to the power unit. This hydraulic cylinder has a piston rod extending downwardly. A platen is mounted on the bottom of said piston rod and a die is mounted beneath said platen. Sheeting material is mounted on rolls and passes beneath said die on a cutting surface on the bottom portion of the frame. The sheeting material passes through a track means. Pin means are provided on the die to mark said sheet material. Markings are provided on the frame so that the markings made by the pin means may be aligned with one of the markings on the frame to provide desired spacing between a symbol cut by said die means and the next symbol to be cut by the die means.

Abstract: A machine to divide pastry into portions, leaving a separator at each separation. A turntable supports the pastry, and a blade descends to drive the separator into the pastry. The turntable is rotated incrementally, and the blade's stroke and initial height are adjustable to accommodate pastries of various heights.

Abstract: A machine tool for working sheet metal is described. The principal characteristic of the present invention lies in the fact that it comprises electronic apparatus operable to control the adjustment of the stroke of a striker which can strike a pin supporting a tool for punching or nibbling a metal sheet.

Abstract: A shearing machine for metal sheets having a pair of upper mobile and lower stationary cooperating blades, each blade having two segments mounted perpendicular to each other.The two segments at right angles of the mobile blade are movable independently either with respect to each other or with respect to the common support so that, in turn each segment is able to execute cut strokes of different lengths in order selectively to engage one and/or the other of the segments. Each of them is able to execute cuts longer than its own longitudinal extension.

Abstract: A method and apparatus for controlling the stroke of a press in which the movements of two portions of a movable platen of the press are continuously sensed during a stroke. A signal is generated whose magnitude at any time during a stroke is dependent on the sum of the distances moved by the two portions of the movable platen during the stroke. The signal is compared with a preselected value which is selected in accordance with the length of the stroke required and the stroke is terminated when the magnitude of the signal equals the preselected value.

Abstract: My invention is particularly adapted to saws for cutting metal, and especially abrasive disc saws, wherein the saw is fixed to a shaft which is rotatable within a bearing located at one end of a rocker arm. A drive motor, preferably an electric motor, is mounted on the other end of the arm and the latter is pivoted intermediate the saw and the motor on a bracket extending upwardly from a base. The arm swings about the pivot to move the saw toward and away from the work to be cut, which work is clamped within a vise secured to the upper surface of the base. The improvement herein disclosed comprises a manually settable timing system for adjusting the amount the saw moves in a direction away from the work, after the cut has been made, so that upward movement of the saw is limited to a position wherein the saw is only a very slight distance above the uppermost surface of the work.

Abstract: A circuit or control arrangement for an adjusting drive of a press ram of a high-speed cutting press which includes top and bottom dies respectively attached to the press ram and a platen of the press with the top die being adapted to dip or penetrate during a cutting process into the bottom die. An arrangement is provided for maintaining the depth of penetration of the upper die means into the lower die means to a constant value in dependence upon an operating condition of the high-speed cutting press. The maintaining arrangement may include at least one limit switch operatively connected with an oscillator stage which provides adjusting signals to the drive motor. In lieu of a limit switch, a cutting force measuring sensor member may be interconnected with an evaluator circuit and the oscillator means so as to control the drive motor.

Abstract: An oscillating bandsaw machine having apparatus to control the upward movement of the bandsaw to eliminate excessive travel.

Abstract: A shearing machine is disclosed which includes a first lower blade and a second lower blade positioned at right angles with respect to each other. A ram is provided which is swingably movable upwardly and downwardly with respect to the lower blades, the ram including a first upper blade and a second upper blade positioned at right angles with respect to each other. A drive drives the ram upward and downward with respect to the lower blades and connecting rods couple the drive to the ram. An adjusting mechanism is coupled to the ram and the connecting rods for adjusting the lower limit of the stroke of the ram. Furthermore, the machine includes adjustors for adjusting the horizontal clearance between the upper and lower blades when the ram is in its lowered position.

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 drive arrangement for a high speed mechanical press, especially a high speed cutting press, wherein the press drive includes two eccentric shafts connected by connecting rods with a slide. Mass balancing weights are provided for enabling a complete dynamic mass balancing, with the weights being articulated by additional rods and being moved in a direction opposite to the slide. The drive further includes at least three pairs of toggle or knee joint link arrangements, with the first arrangement being nearly horizontally disposed, the second arrangement being nearly vertically disposed, and the third arrangement being nearly vertically disposed and connected on the one hand with the slide and, on the other hand, with the mass balancing weights, with the pairs being arranged symmetrically with respect to the eccentric shafts.

Abstract: A circuit or control arrangement for an adjusting drive of a press ram of a high-speed cutting press which includes top and bottom dies respectively attached to the press ram and a platen of the press with the top die being adapted to dip or penetrate during a cutting process into the bottom die. An arrangement is provided for maintaining the depth of penetration of the upper die means into the lower die means at a constant value in dependence upon an operating condition of the high-speed cutting press. The maintaining arrangement may include at least one limit switch operatively connected with an oscillator stage which provides adjusting signals to the drive motor. In lieu of a limit switch, a cutting force measuring sensor member may be interconnected with an evaluator circuit and the oscillator means so as to control the drive motor.

Abstract: The shears have a lower blade and an upper blade. The upper blade is reciprocated with respect to the lower blade through a transmission. The transmission includes a first eccentric which is continuously rotated to continuously reciprocate the upper blade over a vertical stroke equal to the throw of the first eccentric. This throw is transmitted to the upper blade through a second eccentric surrounding the first. The second eccentric is quickly rotatable, between two positions. In the first position, the upper blade is always clear of a billet on the lower blade. In the second position, the upper blade cuts the billet during the reciprocation. To ensure that the upper blade only penetrates approximately half the thickness of the billet, the position of the lower blade is vertically adjustable.

Abstract: A press drive with a central cam shaft actively connected through a connecting rod with a slide guided in a linear guide. Side bars are symmetrically articulated with respect to each other on the slide. Mass balancing weights are driven in opposed directions corresponding to reciprocating masses of the press, with the weights being connected with the slide by other linkages. Pairs of toggle joint linkages are disposed symetrically with respect to the cam shaft. The pairs of toggle joint linkages include a first almost horizontally disposed toggle joint linkage that is articulated on the respective side bars and presents a bearing point on the press frame. A second almost vertically disposed toggle joint linkage that is connected with the first toggle joint linkage and is articulated so as to be guided by the press frame on the mass balancing weight.

Abstract: The printer includes a slide member adapted to be reciprocally moved by a drive source. The printer comprises a paper cutting member reciprocally movable for cutting the printed paper, a connecting member connected to the paper cutting member and arranged so as to be engaged with and disengaged from the slide member, and an electromagnetic device adapted to be actuated by a paper cutting signal for controlling the engagement and disengagement of the connecting member with and from the slide member, to thereby permit the cutting member to be engaged by the slide member by the electromagnetic device when activated by the paper cutting signal so as to actuate the slide member for operating the paper cutting member.

Abstract: A swinging ram type cutoff press for severing lengths of elongated stock such as tubing is provided of the type in which a ram is supported for swinging movement to operate a cutoff die set. The cutoff press includes a power cylinder combined with a toggle link arrangement to produce the swinging movement of the ram. The relative geometry of the ram link support and the toggle mechanism coupled with the arrangement of the cylinder is such that a complete ram motion cycle is carried out during a single forward or return stroke of the cylinder. The force exerted by the cylinder and toggle mechanism is not resisted either by return springs or the weight of the ram, thereby further maximizing the usable power of the power cylinder. Accordingly, one may reduce the cylinder size requirements for a given application. In addition, the mechanical advantage afforded by the toggle mechanism provides for a maximum force at the ram full down position to maximize the force available for the blade stroke.

Abstract: A shearing assembly and method of effecting shearing utilizing the same. Any tendency of further the edges of steel stock being cut to roll is eliminated by providing a male die cutting blade (which cooperates with a female die) having a pair of shelf members, one associated with each cutting blade side face, for engaging the edge of material being sheared during the shearing operation. An actuator element is operatively connected to the male die for moving the cutting blade in a given linear direction, the rolling preventing being accomplished by providing a control structure for positively controlling the length of the stroke of the actuator element and attached cutting blades so that at the limit of travel of the cutting blade in the given linear direction the shelf members are spaced apart from the female die a distance corresponding to the thickness of material being sheared. A plurality of die groups are mounted on a rotating wheel.

Abstract: An improved flying cut-off machine is disclosed of the type in which a ram is supported for swinging movement induced by a ram actuating mechanism so as to operate a cut-off die set to cut off lengths from an elongated workpiece continuously emanating from a tubing mill. The improvement comprises the provision of an adjustment member included in the ram actuating mechanism which is interposed between connecting rod end members, one of which is pivotally connected to a motor driven crank and the other pivotally connected to the swinging ram. The adjustment member comprises a shaft having oppositely threaded ends threaded into the connecting rod ends so that a length adjustment can be made to the connecting rod, which in turn provides a simultaneous adjustability feature to both the vertical stroke and shut height of the ram produced by the crank rotation so as to adapt the apparatus to variously configured die sets having differing shut heights and strokes.

Abstract: A novel press brake is disclosed which incorporates a double lever actuating mechanism which is easily adjustable to vary the stroke of the press brake as well as adjusted to counteract the rotational forces imparted to the ram by reason of differential resistances created by the workpiece during the forming operation.

Abstract: A fluid piston actuated press is provided with a fixed portion, such as a die, and a plurality of movable portions, such as punches, which move reciprocally along paths which intersect the fixed portion. A plurality of levers, actuated by an actuating means, engage the movable portions to cause them to move along their paths intersecting the fixed portion.

Abstract: A new and improved cross-beam press includes a carriage which is mounted for movement along a cross-beam located rearwardly of the bed of the press. A movable press head is suspended from the carriage so as to be above the bed of the press. A control system controls the movement of the press head as the same travels toward and then away from the bed of the press. The control system includes means for adjusting the ultimate approach position of the press head with respect to the bed of the press. As a further feature, the bed of the press can be positioned in two different heightwise positions relative to the movable carriage.

Abstract: Interposed between the cutting surface and the pressure head is a magnetic die holder including base and die carrying sections, the former being mounted on a telescoping member which is pivotally connected to the head for vertical movement therewith and which permits movement of the holder in a plane parallel to the cutting surface. The base and die carrying sections are connected by a spring to permit the die carrying section to be vertically displaced with respect to the base section for accurate positioning of the die relative to the cutting surface. The die carrying section is also rotatable relative to the base section to permit orientation of the die at any angle with respect to the cutting surface. The die carrying section includes an electromagnet which retains the die thereon. Also located on the die carrying section are a pair of handle grips, each having a switch mounted thereon, both of which must be simultaneously actuated in order to initiate vertical movement of the pressure head.

Abstract: A drive or drive arrangement for a movable work component, such as the ram of a punch press, stamping machine or the like, comprising a crosshead driven by a crank drive. At both sides of the crosshead there are hingedly connected one respective end of single-arm levers, the other ends of which are hingedly connected with threaded spindles supported in the machine housing for adjusting the stroke of the drive, and the intermediate bearing or support locations of the levers are hingedly connected via connecting or pressing rods with the ram.

Abstract: An apparatus for the mass compensation at a machine driven by means of a crank drive including a crankshaft, especially a punch press or stamping machine, comprising at least one compensation weight which is connected with a piston or cross-head and the crank drive in order to realize a mass compensation both of the oscillating masses and of the rotating masses. A double-lever is hingedly connected by means of its one end with the compensation weight in order to realize mass compensation of the rotating masses and is hingedly connected by means of its other end with the crank drive via a first guide or link. The one end of the double-lever is directly connected at the compensation weight, and an intermediate bearing means of the double-lever is hingedly connected via a second guide or link, directed towards the side of the crank shaft, with the machine housing or a component fixedly connected therewith.

Abstract: In a cutting press of the type wherein an upper platen is forced toward a lower platen to press a die through a workpiece on the lower platen, a more easily operable stroke setting means is provided. In the course of low pressure actuation of the upper platen for this purpose, an operator need only deactivate a solenoid whereby a brake becomes effective to establish the cutting stroke as appropriate to the depth of a die, for subsequent high pressure cutting strokes of the press.

Abstract: A press arrangement which includes a press table, a punch and an adjusting arrangement for selectively adjusting the distance between the press table and punch. A pressure space is provided in the punch which selectively communicates with a pressure medium supply so as to load and relieve the pressure space. A piston is floatingly disposed in the pressure space and cooperates with an element of the adjusting arrangement so as to create a constantly-acting or permanently-acting tension on the adjusting arrangement when the pressure space is filled with a pressure medium.

Abstract: A dividing apparatus for dividing, cutting, or severing a continuously running strip material with the apparatus including an articulated drive for effecting a stroke movement of a cutting unit. The articulated drive is constructed as a quadrangular linkage including a driven crank and a rocker lever pivotally connected to the driven crank through a coupling member. The rocker lever includes an extension portion extending beyond a pivotal connection of the coupling member with the rocker lever. A secondary drive lever is provided with a first end of a link member being pivotally connected with the secondary drive lever and a second end of the link member being pivotally connected with a free end of the extension portion of the rocker lever. A transmission link element is provided for moving the cutting unit with the transmission link element being adjustably connected with the secondary drive lever.

Abstract: An assembly is disclosed which is rigidly connected between a press slide and a slide driving component. The assembly is concentric with the slide axis and enables both axial adjustment of the slide position and overload protection for the slide during press operation. The assembly includes relatively slidable telescoping components, one of which is provided with an adjusting ring facilitating adjustment of the slide position relative to the press bed. The other component is provided with a shoulder spaced from and facing the adjusting ring, and a load responsive shear fixture is interposed between the shoulder and adjusting ring to provide overload protection.

Abstract: A rotary cutting blade control system which automatically varies the feed rate to maintain a constant material removal rate. The system senses the current in an electric motor driving the cutting blade and automatically adjusts the feed rate to maintain the motor current constant. The system adjusts a hydraulic valve in the hydraulic system operating the blade support to move the blade in or out whenever the current deviates from a standard which is set by the operator. The control system also includes a circuit for detecting when the load on the blade has dropped below a preset level indicating that the blade has completed the cut and automatically commands the hydraulic system to return the blade to a start position. An additional control circuit operating in conjunction with the no-load sensing circuit automatically produces a command to stop the blade close to the work piece to save time and motion when multiple cuts are being performed.

Abstract: A packaging machine is provided in which wire is fed for cutting into predetermined lengths for subsequent formation into U-shaped clips for clinching about a constricted product filled tube. It includes means for varying the length of the cut off portion by adjusting the position of a wire receiving member or cut off round and a cut off knife along the wire. Also the wire is fed intermittently to be cut off through an extent corresponding to the length to be cut off. The cut off length is variably formed according to the desired length of the U-shaped clip with the legs thereof in various angular relations.

Abstract: A device for positioning the backward stroke end of a shearing blade for use in a bolt forming header comprises a shearing slide reciprocably mounted within a box-shaped frame and having a shearing blade attached to the leading end thereof and a first abutment member fixedly secured to the rear end thereof, said abutment member having an inclined face formed in the rearmost end thereof, a stopper member movably mounted on the rear end portion of said frame and having an inclined face formed in the portion thereof opposite to the inclined face of said abutment member, and an adjusting mechanism mounted on said frame for moving said stopper member in the direction perpendicular to that of reciprocation of said shearing slide, thereby adjusting the backward stroke end of said shearing blade.