Abstract: A shearing machine for cutting off a material being continuously fed at a constant high speed into a relatively short lengths requiring adjustment of the revolution speed of a driving motor only within a relatively small range. The shearing machine comprises mainly three sections: a reciprocating mechanism driven by a motor to move cutters horizontally, a travelling assembly and double-acting cylinder to drive a movable cutter vertically while being moved horizontally, and a two-way rotary valve driven by the motor to control the double-acting cylinder device in conjuinction with movement of the reciprocating mechanism. The reciprocating mechanism translates rotary torque into reciprocating linear motion of relatively small stroke length. The two-way rotary valve is driven directly by the motor, facilitating synchronization of horizontal cutter speed with material feed speed and rapid movement of the cutters without any response delay.

Abstract: A flying cutoff for cutting successive lengths of a continuously moving, elongate workpiece includes a carriage assembly provided with a cutoff die set which is slideably mounted on a swinging ram and is selectively accelerated or decelerated in synchronism with the movement of the workpiece by a belt drive system which includes a plurality of endless, flexible, toothed belts, each secured to the carriage assembly and trained around a corresponding drive and idler gear. The belts are of different pitches and/or tensions so as to give the belts differing resonant and harmonic frequencies which tend to cancel each other out in order to eliminate cutting measurement error created by the cumulative effects of belt oscillation. The drive gears are driven by a hydraulic motor whose output is precisely controlled by a direct current, reversible stepping motor.

Abstract: Process and apparatus for cutting an elongate complex structure composed of materials having different properties, e.g. a liner and a core which are relatively soft and flexible and susceptible to rupture or crushing and a facing of hard material such as a metal plate. The facing may have an upwardly turned portion, flange portion and groove portion at each side thereof. A carriage and a base frame are movable in the direction of the travel of the complex structure and in the direction perpendicular thereto, respectively. Various types of cutters are mounted on the carriage. The complex structure is instantaneously cut in the direction of the width thereof while it is travelling at a high speed. The cut composite structure has smooth and fine cut edges, and is useful for e.g. a siding of a building.

Abstract: In a flying shear wherein strip stock moves lengthwise forward, a lower blade carrier, confined to forward and backward motion, has an upwardly facing clamping surface and carries a lower shearing blade. An upper blade carrier, connected with the lower one for back and forth motion with it and for up and down motion relative to it, carries an upper shearing blade and is biased to a raised position. A gripper, connected to the lower blade carrier to swing about an axis spaced substantially above said clamping surface, has a bottom wedging surface curved eccentrically to said axis. The gripper is biased forward, for engagement of its said surface against strip stock whereby the strip stock is clamped to the clamping surface and pulls the blade carriers forward.

Abstract: A flying ram cutoff machine for severing successive lengths of an elongated workpiece continuously moving in the direction of its longitudinal axis employs a bevel gear drive for swinging a ram in synchronization with movement of the workpiece. A motor drive fly wheel and clutch assembly power a drive shaft which extends parallel to the longitudinal axis of the workpiece, at the rear of the machine. A pair of bevel gears disposed at spaced locations along the drive shaft form power take-offs for transmitting power from the drive shaft to a pair of input shafts which extend perpendicularly away from the drive shaft and toward the swingable ram. A pair of crank assemblies couple the input shafts with the ram to produce swinging movement of the ram upon rotation of the drive shaft. Backlash of the drive system is controlled by interposing a stabilizing spacer between one of the bevel gears and a stationary support.

Abstract: Discharging device for an extrusion press, including a frame being movable in the axial direction of the press; a first part being connected to the frame and adjustable in height, the first part including a substantially flat plate and cutting means; a second part being movable relative to the frame and being adjustable in height, the second part including a horizontally disposed axle, a conveyor belt being suspended from the axle and tiltable about the axis of the press, and a coupling for the conveyor belt; a coupling rod for the cutting means being engageable with the coupling for periodically connecting the cutting means to the conveyor belt; and a continuously variable drive driving the conveyor belt.

Abstract: Cutoff press for cutting tube into segments including a frame slidably supporting a cutoff die set wherein the ram is mounted for vertical movement only and driven by counter-rotating drive shafts having connecting rods, the upper ends of which move in an orbital path and the lower ends of which move in a linear path.

Abstract: A flying cutoff machine for severing elongated material moving continuously longitudinally of its length wherein a die carriage is attachable to the material for movement therewith and includes a reciprocating cutting blade for severing the material. The machine has a frame with a bed slidably supporting the carriage and an elongated ram extending parallel to the bed with the ram being supported through a link and slide arrangement so that the ram is maintained parallel to the bed. The ram is driven by a single crank arrangement to move in a orbital path relative to the bed during sliding movement on the slide member which supports the ram.

Abstract: In a reciprocating travelling shear in which a tool post travels reciprocatingly in the travelling direction of a travelling material and a cutting tool held by the tool post is made to move vertically by press mechanism to cut the material, the press mechanism is driven by a first DC motor, which is controlled by first numerical control means, the reciprocating travelling of the tool post is controlled by a second DC motor, which is controlled by second numerical control means, and the second numerical control means supplies a cut command to the first numerical control means thereby to drive the first motor when the tool post has travelled a predetermined distance.

Abstract: A cutting apparatus for cutting into suitable lengths a shaped, elongated bar-like workpiece, such as a section bar of steel, which is being fed in continuously. The apparatus comprises a crank mechanism driven by a single, multi-function drive source and adapted to perform the functions of four devices simultaneously, in a timed relation, namely, a device for reciprocating a cutter in the direction of travel of the workpiece, a device for advancing and retracting the cutter relative to the workpiece, a device for driving a clamp which holds the workpiece during the cutting operation. The apparatus includes a cross type universal joint.

Abstract: A device for converting the rotary motion of a crank mechanism into the linear motion of a slide block. In order to enable the slide block to make a constant velocity motion in an angular range required by the crank pin and extending from the crank pin in opposite directions, the device is designed to control the angular velocity of the crank mechanism along the ideal angular velocity variation curve.

Abstract: A flying cutoff comprising a severing mechanism which is capable of displacement with the stock to be severed under the control of a linear motive power source such as fluid accelerator. A ramp-like cam member is disposed above the mechanism and, in combination with a follower roller which is connected to the upper shoe of the mechanism, drives the severing blade through the stock as the mechanism carriage travels along with the stock. At the fully extended position, means are provided to lift the cam member so as to raise the blade out of contact with the stock. CAm surfaces for linear and non-linear power transfer relationships are disclosed. The effective angle of the cam member may be adjusted to vary the power factor. A mechanism is disclosed which allows a cut to be made without linear movement of the die carriage or stock.

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: Upright pouches are successively severed from the leading end portion of a continuously advancing strip of interconnected pouches by a pair of coacting blades which track the strip and which momentarily move at the same speed as the strip. At that time, one blade is shifted laterally toward the other blade to cut the leading pouch from the strip. Prior to the cutting, a notch is formed in the upper edge portion of the strip between adjacent pouches to impart a desired shape to the upper corners of the pouches and to enable the use of a relatively simple stationary splitter for keeping the two upper edge portions of each pouch separated from one another.

Abstract: Process and apparatus for folding and interleaving continuously moving strips of paper and cutting the interleaved strips into packets of interleaved paper sheets. A supply roll of paper strip is provided for each sheet of paper in a packet, and the strips are simultaneously drawn from the supply rolls and through a series of formers and interleavers to provide a continuously moving strand of interleaved paper strips. The packets are cut from the continuously advancing strand by severing means which moves along with the strand during cutting.

Abstract: An improved method and apparatus for cutting segments from a continuously moving stock piece are disclosed wherein a cut-off press is accelerated to exceed the speed of the stock piece and to substantially eliminate a pushing force by the stock against a positive engagement means. The force of acceleration is reduced and controlled to maintain a minimum bias in the direction of the stock movement by the positive engagement means when the cut-off press attains a velocity equivalent to the moving stock piece. The stock piece is severed into accurate length segments during reciprocal movement cycles of the cut-off press. Back pressure on the stock piece is substantially eliminated by establishing a positive pulling engagement between the cut-off press and the stock piece when moving in the same direction during the reciprocal movement cycles.

Abstract: A process and apparatus for the continuous shearing of billets or bars of various shapes and sizes produced in a continuous casting plant wherein the shearing device moves in harmony with the billets is described. According to the process and as permitted by the apparatus, a first blade preferably the upper blade is caused to approach a billet and rest on it by means of hydraulic pressure working on cylinder/piston means, and thereafter a second blade positioned opposite the first blade is caused to move from supporting brackets to approach the billet and thereafter the blade caused to continue its course and cut into and shear the billet with the shears being supported substantially only by the billet during the shearing process. The device is relatively simple in design and is highly efficient.

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: In a shearing machine for a run-out roller table of a continuous casting plant, in particular a multiple-strand continuous casting plant for billets, including an upper and a lower cutter arranged in a shearing frame and movable towards and away from each other by means of drive and control aggregates. The shearing frame is mounted on a machine frame so as to be displaceable in the longitudinal direction of the run-out roller table. The shearing frame rests loosely on the machine frame, which machine frame exceeds the run-out roller table in height. The drive and control aggregates are mounted on the shearing frame and form a construction unit with it.

Abstract: A running web cutting device in which a vertically movable cutter is driven by a crank mechanism. A reciprocating stand holding an upper cutting edge and lower cutting edge is provided in such a manner to be moved in the direction of advancement of a web by a reciprocating guide. The upper and lower cutting edges are driven through the same crank shaft coupled to a cutter driving motor. A value J (J=J Wo/To where J is the conversion inertial moment of a driving motor including a load, Wo is the rated speed thereof, and To is the rated torque thereof) of said cutter driving motor is represented by J.sub.C while a value J of a web feeding motor driving a web feeding drum is represented by J.sub.F. The cutter driving motor and the web feeding motor are chosen so that J.sub.C smaller than J.sub.F.

Abstract: A method and apparatus for cutting a web into a specified length in which an upper cutting edge and a lower cutting edge are provided respectively above and below the web run at a constant speed. The web is cut into the specified length by moving said upper cutting edge vertically while said upper and lower cutting edges are swung in the web movement direction. The swinging and vertical movements of said cutting edges are accomplished by rotation of an eccentric crank shaft driven by a DC motor. A rotation angle of the eccentric crank shaft and a movement length of said web are outputs provided in the form of pulses, respectively, in order to coincide a movement speed of the web with a swinging speed of the cutting edges in cutting said web.

Abstract: A flying shear for use in a wire cutting-off machine has a cutter head reciprocated along an axis parallel to the path of wire feed. A knife equipped cutoff slide carried by the head moves perpendicular to the path of wire feed and, in cooperation with a cutoff bushing carried by the head, cuts the wire while the head moves in the same direction as the wire to produce a clean cut with little or no marring of the wire surface. The head and the slide are driven by a common drive mechanism, using a single eccentrically driven lever, located entirely above the cutoff bushing to minimize the possibility of its becoming fouled by metal particles and other debris at the cutting zone.

Abstract: A cutting apparatus for severing a wire continuously advanced through the apparatus along a wire path in a feeding direction parallel to the wire axis, comprises a carriage supported for displacement parallel to the feeding direction; two cutting members connected with the carriage; a support arm articulated to at least one of the cutting members; a displaceable anchor member to which the support arm is articulated by means of a support joint arranged on the support arm at a distance from the cutting member; a drive for moving the carriage in and opposite the feeding direction to cause, with the cooperation of the anchor member and the support arm, a motion of the cutting member in an arcuate path towards and, subsequent to severing, away from the wire and the other cutting member; and a force-exerting arrangement for shifting the anchor member to effect a displacement of the support joint and the support arm for affecting the course of the arcuate path of the cutting member.

Abstract: In a web cutting apparatus comprising a first cutting blade and a second cutting blade in face-to-face relationship above and below the two surfaces of a continuously moving web, the parallel travelling speed of the first and second cutting blades are made identical with the travelling speed of the web at the time when the web is cut by the joint action of the first and second cutting blades.

Abstract: A process and apparatus for the continuous shearing of billets or bars of various shapes and sizes produced in a continuous casting plant wherein the shearing device moves in harmony with the billets is described. According to the process and as permitted by the apparatus, a first blade preferably the upper blade is caused to approach a billet and rest on it by means of hydraulic pressure working on cylinder/piston means, and thereafter a second blade positioned opposite the first blade is caused to move from supporting brackets to approach the billet and thereafter the blade caused to continue its course and cut into and shear the billet with the shears being supported substantially only by the billet during the shearing process. The device is relatively simple in design and is highly efficient.

Abstract: Apparatus for transversely press cutting into suitable lengths a shaped, elongated bar-like workpiece, product or section of steel which is being fed in continuously. The apparatus comprises a crank mechanism driven by a single, multi-function drive source and is adapted to perform the functions of four devices simultaneously, in a timed relation, namely a device for reciprocating a cutter in the direction of travel of the product or section, a device for advancing and retracting the cutter relative to the section, a device for driving a die opposed to the cutter, and a device for driving a clamp which holds the section during the cutting operation.

Abstract: The specification discloses a system and process for producing discrete chilled products having preselected weights from a semi-fluid mixture. The semi-fluid mixture is pumped along a distribution path to an extruding manifold which extrudes a plurality of parallel continuous lengths of the mixture. The continuous lengths are directed through a chilling station in a parallel relationship in order to chill and firm the lengths such that the lengths maintain their extruded cross-sectional configuration. A cutter periodically severs the continuous lengths at predetermined intervals to provide a plurality of discrete products having predetermined weights. The pumping rate, rate of travel through the freezer and periodic severing of the continuous lengths may be selectively varied in order to maintain any desired weight of the discrete products.

Abstract: A cross-cutting shear of the type where the nip formed between the blades travels in the direction of movement of the material being sheared is driven by a single crankshaft. The upper blade is attached to the crank portion of the crankshaft, and the sliding motion of the blade-carrying carriage is provided by cam discs mounted on the crankshaft and acting against rollers in a stationary frame. The crankshaft is journalled at each end in links pivotally attached to the bottom part of the blade carriage. The guide links are free to pivot independently of the blade carriage. By this construction, reaction loadings are prevented from being transmitted through to the stationary housing, when a shearing action is taking place.

Abstract: An apparatus for cutting a continuously horizontally moving web into desired lengths comprises a first slider crank mechanism 21 for horizontally reciprocating a first slider 71 mounting relatively reciprocable cutting edges 81, 82 disposed below and above the web, a second slider crank mechanism 22 for vertically reciprocating the upper cutting edge 82 via a second slider 72 to sever the web, and a third slider crank mechanism 23 for horizontally reciprocating a third slider 73 mounting a torque balancing weight 83. All three mechanisms are driven by a common rotary shaft 13, and the angles between the crank arms of the mechanisms and the magnitude of the balancing weight are selected such that the shaft torque is substantially constant over the cutting region whereat the first slider moves at a substantially constant speed approximately equal to that of the travelling web.

Abstract: An I-beam section traveling from the apparatus in which it is fabricated is cut on the fly by a die set or shear which is moved with the I-beam. The cut is effected by a stepped blade having a leading cutting edge and a trailing cutting edge, the latter being in the same plane but laterally offset from the former. The cut proceeds at a 45.degree. angle to the plane of the web and flanges. The leading edge enters the I-beam at the middle of the web and cuts the remainder of the web and the lower flange. The trailing blade edge engages the margin of the upper flange and cuts through this flange and the remainder of the web. The cutting blade is mounted on a reciprocable upper shoe and the I-beam is fed through structure mounted on the lower shoe which has an opening for the I-beam to pass with considerable clearance. Inserts mounted on the lower shoe underlie the web and flanges of the I-beam to support the beam during the cut.

Abstract: A tubing cutoff die having a horizontally moving scarfing blade and a vertically moving cutoff blade. The tubing being cut off is held in clamping jaws movably mounted on the lower die shoe of the die and actuated by a cam extending from the upper die shoe. The scarfing blade is also mounted for horizontal reciprocation on the lower shoe and actuated by another cam fixed to the upper shoe. The cutoff blade is mounted on the upper die shoe. The two die shoes are reciprocably connected by post and bushing arrangements. There are three of these disposed so that the centerlines are at three of the corners of a rectangle. One of the clamping jaws is mounted on a holder reciprocably mounted on the lower die shoe and the other jaw is mounted on a second holder reciprocably mounted on the first holder. The mounting for the cutoff block provides for either of two rigidly located positions, for different tubing sizes, and the scarfing blade is also adjustable.

Abstract: A device for cutting to length, by shearing, articles known in the sheet metal and air conditioning art as hollow vanes. The device includes a wedge shaped cutting element, means for determining the length of vane to be sheared and a clamping element arranged adjacent the shearing blade to positively hold the vane after the length has been properly determined for shearing. The device is automatically controlled to provide length detection, clamping and shearing in proper sequence in coordination with a vane producing machine with control means provided to establish the recycling of the machine after a length of vane has been cut and has been delivered from the device. The clamping device provides a means for insuring continued flow of the vane through the die portion of the device and a sensing element is provided for retraction of the device after the shearing such that the sheared vane is free to fall from the device and not inhibit further flow of the vane through the device.

Abstract: The disclosure is directed to improvements in flying cutters, particularly shears for severing light gage sheet or strip metal. Conventional flying shear mechanisms include a severing mechanism which is accelerated up to the speed of a moving strip or sheet material and then operated to sever the strip while moving synchronously therewith. The cutter mechanism is then returned to its starting position in readiness for a further operation. The present invention is directed to a novel and unique form of conveyor support, which is arranged in a novel manner to automatically extend or contract in accordance with movements of the shear, so that the sheet or strip material remains effectively continuously supported on both sides of the shear.

Abstract: Method of controlling with heightened accuracy a processing machine driven t different operating speeds and having a machine part moving through a predetermined full range, the processing machine, at an initial setting of the moving machine part, within a given tolerance range, repeatedly permitting start-up of a processing cycle that has been instituted in advance through a precontrolled time period dependent upon the operating speed and which includes a control commencement build-up time period and a full range displacement time period, which includes interposing a blocking time period between the control commencement build-up time period and the full range displacement time period, the blocking time period always ending at the same position in the displacement range of the moving machine part, blocking the full range displacement by the moving machine part until the end of the blocking time period, and advancing the start of the control commencement build-up time period in accordance with the blocking time

Abstract: A flying shear is disclosed in which a shear carriage is arranged to be driven along the pass line of a moving strip, between a pair of spaced shear platens. The carriage is constructed for telescoping movement and mounts a pair of cooperating carriage plates. The platen members are stationary, but are arranged to have relative closing and opening movement, in order to telescopically compress the shear carriage at desired times, to effect a shearing operation.A novel form of support is provided for the shear carriage, enabling the carriage normally to be supported from the platen structure by means of antifriction rollers, which accommodate rapid acceleration and high speed movement of the carriage. At the instant when the shearing operation is to occur, however, the closing movement of the platens serves to effectively disable or retract the antifriction roller support for the carriage and cause the carriage to be supported by relatively broad area, elongated, sliding friction bearing surfaces.

Abstract: A tubing cutoff die having a horizontally moving scarfing blade and a vertically moving cutoff blade. The tubing being cut off is held in clamping jaws movably mounted on the lower die shoe of the die and actuated by a cam extending from the upper die shoe. The scarfing blade is also mounted for horizontal reciprocation on the lower shoe and actuated by another cam fixed to the upper shoe. The cutoff blade is mounted on the upper die shoe. The two die shoes are reciprocably connected by post and bushing arrangements. There are three of these disposed so that the centerlines are at three of the corners of a rectangle. One of the clamping jaws is mounted on a holder reciprocably mounted on the lower die shoe and the other jaw is mounted on a second holder reciprocably mounted on the first holder. The mounting for the cutoff block provides for either of two rigidly located positions, for different tubing sizes, and the scarfing blade is also adjustable.