Abstract: A high-speed shear for cutting a rolled strip to a length and including first upper and second lower blade drums carrying, respectively first and second blades and rotationally connected with each other, drive elements located in front of and behind the first and second drums for advancing the rolled strip, under longitudinal tensioning, through a blade gap between the first and second drums, and support rollers supporting the tensioned strip and providing for lifting of the strip before passing of the second blade and for lowering the strip before passing of the first blade through the blade gap.

Abstract: A rotating shearing device for cropping fast-running rolling stock, in particular wire, includes two axially cutting annular knives which rotate about their axes at the same rotational speed. The two axially cutting annular knives include end cutting edges directed toward one another which converge to the clearance required for separating running stock during the cutting operation and lie in planes which are arranged at an acute angle to one another and intersect one another in a line. The rolling stock is guided toward the shearing device by a front guide and guided away from the shearing device by a rear guide. The front guide is pivotable to change in the relative position between the rolling stock and the cutting body so that the rolling stock may be guided either through the space between the annular knives which is free for the cut-free passage of the rolling stock or into the wedge-shaped cutting region of the annular knives.

Abstract: A shear is disclosed for subdividing an elongated product moving longitudinally in a horizontal plane. The shear includes upper and lower continuously rotating blades respectively coacting in a radially overlapping relationship at first and second laterally disposed cutting zones. An upstream switch operates to divert the product laterally across the cutting zones to separate a leading end from an intermediate section in the first cutting zone, and to separate a trailing end from the intermediate section in the second cutting zone.

Abstract: A rotating shearing device for cropping fast-running rolling stock, in particular wire, includes two axially cutting annular knives which rotate about their axes at the same rotational speed. The two axially cutting annular knives include end cutting edges directed toward one another which converge to the clearance required for separating running stock during the cutting operation and lie in planes which are arranged at an acute angle to one another and intersect one another in a line. The rolling stock is guided toward the shearing device by a front guide and guided away from the shearing device by a rear guide. The front guide is pivotable to change in the relative position between the rolling stock and the cutting body so that the rolling stock may be guided either through the space between the annular knives which is free for the cut-free passage of the rolling stock or into the wedge-shaped cutting region of the annular knives.

Abstract: High-speed flying shears and method employing the same with contrarotating blades (13) and scrap-shearing blades (18) fitted side by side to blade-holder drums (30), which is suitable to shear bars (11) travelling at 120 meters per second or more, the shears comprising upstream a first one-channel switch (16) of a start/stop type and downstream a second one channel switch conveying the bars (11) lengthwise and capable of being oriented in synchronization laterally by rotation on a plane substantially containing the axis of travel of the bars (11) and parallel to, and between, the planes containing the axes (12) of rotation of the pair of blade-holder drums (30) so as to make the bars (11) pass in the shearing area (35), the circumferential position of the blades (13) being associated with the lateral position of the first one-channel switch (16) at least in the transient moment of the passing of the bars (11) in the shearing area (35), the first and second switches (16-20) having at least a first extreme posi

Abstract: An on-demand exact registration form web perforating method is simple yet effective, and can operate at high speed and a long life. A form web is moved in a predetermined path past first and second rotatable continuous circumferential perforator wheels mounted on stationary axes and spaced from and in alignment with each other along the path. First and second anvil cylinders are spaced along the path for cooperation with the wheels, each cylinder having an interrupted circumference including a raised portion and a depressed portion, and an axis of rotation.

Abstract: High speed flying shears with contrarotating blades (13) fitted to blade-holder drums (30), the shears comprising an upstream one-channel switch (16) of a start-stop type which conveys the rolled stock (11) lengthwise into sharing area and can be oriented laterally on a plane substantially containing the axis of feed of the rolled stock (11) and parallel to and lying between the planes containing shafts (12) of rotation of the blade-holder drums (30), the circumferential position of the blades (13) being associated with the lateral position of the upstream one-channel switch (16) at least in the transient time of the feed of the rolled stock (11) through the shearing area (35), a two-channel (22-23) switch (20) which can be oriented laterally substantially on the same orientation plane as, and in synchronization with, the one-channel switch (16), the two-channel switch (20) including the inlets of two enlarged channels (22-23) superimposed on each other on a plane perpendicular to the axis (12) of rotation of

Abstract: Apparatus for shearing elongated products such as rods, bars and the like moving longitudinally along a path of travel. The apparatus includes a pair of constant diameter helical blades mounted for rotation about axes parallel to the path of travel. The rotational orientation of the blades and the spacing between their respective axes is such that segments of the blades coact along a cutting path parallel to the path of travel. The blades are rotated in opposite directions to thereby cause coacting segments thereof to move repetitively along the cutting path in the direction of product movement. A switch diverts the products from the path of travel across the cutting path for shearing by the coacting segments of the cutting blades.

Abstract: A method and apparatus for cutting a longitudinally advancing a rod of tobacco-containing material into lengths including a cut-off wheel having two or more blades equally spaced around the wheel periphery, a sharpening stone driven independently by a motor at a fixed location to sharpen one side of each blade as the wheel rotates, and a deburring stone oscillating in a path between two points at a frequency such that the stone intersects the path of travel of each blade for deburring the other side of each blade. The deburring stone may be located on the ledger device of a cigarette manufacturing machine where the ledger is oscillating at a frequency that is a multiple of the number of blades of the cutoff wheel for each revolution of the wheel.

Abstract: Plant to perform cropping and to take samples, which is suitable to crop the head and tail of a rolled product which may travel at high or very high speeds, the head and tail being discharged through an independent discharge conduit (15), the plant comprising at least one flying shears (11) at least for the shearing and correct delivery of the head and tail, the discharge conduit (15) cooperating with a flying shears (18) to take samples, at least one container (19) for the portions collected as samples being located downstream of the sampling flying shears (18).

Abstract: Very high speed flying shears (10) which is suitable to shear rolled stock (18) travelling even at more than 100 meters per second and comprises two knives (14) with blades (17) able to contrarotate in relation to each other at a preset speed at least in the transient period of shearing and is equipped with a guide (11) able to move sideways (19-119) at a pre-set speed (V) and to position itself in a defined position in relation to the circumferential position of the blades (17), an inner dividing wall (27) being located downstream of the knives (14) in a conveyor channel (13), in which shears (10) during the transient period of shearing;the speeds (VR) of lateral movement of the guide (11) and of rotation of the knives (14) are correlated, andthe lateral position of the guide (11) and the cirmcumferential position of the blades (17) of the knives (14) are strictly interdependent.

Abstract: Compact shearing machine (10) with scrap shears which comprises a shears means (15) that cuts to size, a scrap shears means (17), a deviator means (12) to deviate rolled products (33) and a motor means (19), the scrap shears means (17) being positioned immediately downstream from the shears means (15) that cuts to size, in the direction of sliding of the rolled products (33).

Abstract: A rotating shear for cutting a rapidly moving wire has a pair of cutter heads rotatable about parallel axes and having respective blades. A drive synchronously counterrotates the heads about the respective axes with close juxtaposition of the blades on each revolution. Thus when the wire is between the heads level with the blades it is severed thereby. A guide tube surrounds the wire upstream of the heads and has a downstream end movable generally parallel to the axes and positioned adjacent and between the cutter heads. The wire exits from the guide tube in a direction generally perpendicular to the plane of the head axes. A guide head fixed to one of the cutter heads is formed with a generally helical guide groove centered on the respective axis. An axially and radially displaceable but angularly generally nondisplaceable follower can move between a position engaged in the groove and axially entrainable thereby and a position clear thereof. An actuator displaces the follower between the positions.

Abstract: A wire shear has a pair of vertically superposed cutter drums defining a nip and having at least one cutter blade. These drums have parallel axes defining a vertical plane. A swingable elongated guide tube has a downstream end closely juxtaposed with and directed into the nip. This tube is mounted at its upstream end for swinging about vertical and horizontal axes at the upstream end. A wire is fed into the upstream end at high speed. A cooling sleeve surrounding the guide tube has lateral openings through which a coolant is introduced into the interior of the sleeve to cool the tube and the wire in it. An upstream guide is engageable upstream of the plane with the downstream end and with the wire issuing therefrom and extends into the drum nip substantially to the plane. A downstream guide downstream of the plane is aligned with the upstream guide and has a floor plate extending upstream substantially to the plane and a guide wall extending upstream past the plane and past the downstream end.

Abstract: An apparatus for cutting through a continuously longitudinally moving wire has a pair of cutter drums centered on and rotatable about respective generally parallel axes and having respective radially outwardly open generally helical wire grooves of substantially the same pitch but opposite hand. These drums are radially relatively closely spaced and define a nip. A guide element is integral with and fixed rotationally on one of the drums and is formed with a helical guide groove of the same hand and pitch and centered on the same axis as the respective wire groove but is axially offset therefrom. A cutter blade is provided in at least one of the wire grooves adjacent one axial end thereof. The two drums are synchronously rotated at the same peripheral speed by a drive. A swingable guide tube is directed generally tangentially at the nip and has a downstream end closely juxtaposed with the drums at the nip. The wire passes longitudinally through this tube toward the drums.

Abstract: A workpiece issuing from a rolling mill is directed by a tubular guide to pass above the knives of a flying shear that is driven in a drive train used to rotate a cam used to pivot the guide tube and direct the workpiece into the shear. The workpiece moves beyond the shear into one of a plurality of retardation channels formed in a drum. There may be shock absorbers at their remote ends to prevent escapement of the sheared workpieces in the event they fail to stop by sliding friction. The drum rotates at a relatively slow speed. When a trailing end of a sheared workpiece moves beyond the shear into the drum, the leading end of the remaining length of workpiece enters a laterally-adjacent channel which has moved into the path of travel by the workpiece through rotation of the drum. A conveyor receives workpieces discharged from the drum through rotation thereof and carries them to a remote discharge station where they are loaded into a cradle car.

Abstract: An arrangement for the processing of a moving material web, in particular for the creasing or punching of an extruded material web made of plastics. In the manufacture of such material webs a number of operational steps take place directly in conjunction with the manufacture of the web itself, and the fact that for reasons of quality as well as of manufacturing technique the extrusion process cannot be interrupted makes it necessary to attend to any changes in the crease pattern etc. during operation. The arrangement in accordance with the invention makes this possible, in that the material web can be brought into contact optionally with different pairs of processing rollers with the help of a pair of counter-rollers supported in a swivelling cradle, any pair of unused rollers being freely exchangeable against a pair of rollers with a different creasing pattern.

Abstract: An apparatus for removing coupling element residuals from a coupled pair of slide fastener stringers comprises a scraper roll drivable for continued rotation and an idler tumbler roll around which the slide fastener stringers travel for rotating the tumbler roll. The tumbler roll has a radial wing which when the tumbler roll is rotated, brings the coupling element residuals thereon into contact with the scraper roll while it is revolving so as to scrape off the residuals reliably. The tumbler roll has pawl means for engaging the fastener stringers at a predetermined position thereon so as to place the coupling element residuals on the tumbler wing. The tumbler roll is rotatable in response to engagement of the pawl means with the fastener stringers being fed. The apparatus of one embodiment includes stop means for temporarily stopping rotation of the tumbler roll and guide means for guiding the fastener stringers properly onto the tumbler wing.

Abstract: Shears, for cropping wire, and including on the one hand, two rotating cutting bodies overlapping to shear the wire, in the form of cylindrical discs whose planes form a right angle with one another, and on the other hand, means for achieving relative motion of the wire and the shearing discs to perform said cropping, a small portion of the circumferential surface of one of the discs being covered by a small portion of one side surface of the other disc where the two discs overlap for cropping the wire.

Abstract: An improved rotary shearing apparatus for cutting a rapidly moving body including rotatable blades which may be inserted into a cutting position and withdrawn therefrom, positioning means for inserting or withdrawing the blades into or out of cutting position, and automatic switches and circuitry capable of causing insertion of the blades and their withdrawal within one rotation of the blades, so that the blades will sever the rapidly moving body with a single clean cut and without disturbing its rapid movement.

Abstract: A first shear-unit is essentially combined with at least one second shear-unit of the same type in a parallel way or in series, to form one single shear machine, wherein the cutting of an advancing bar is alternately at one or the other shear and for this purpose employing a bar-deviator, which is mounted upstream of these shears.

Abstract: An improved flying saw of simplified and more economical construction is disclosed which operates smoothly with reduced vibration and which performs in an improved manner at higher operating speeds. The machine has a main crank arm with a rotary saw blade at one end and an adjustable counterweight at the opposite end, a stabilizing crank arm with a counterweight, and a connecting rod causing the arms to rotate in unison. Both arms telescope to permit simultaneous adjustments of arm radius while screw jacks adjust the height of the crank axis relative to the work. The work is supported on a wheel having a special sliding-block eccentric which moves the wheel in a vertical direction to deflect the work into the path of the rotary saw blade. A quick-drop support bracket permits lowering of the wheel and its eccentric away from the path of the work in an emergency situation so that flow from the mill need not be interrupted.

Abstract: An improved flying saw of simplified and more economical construction is disclosed which operates smoothly with reduced vibration and which performs in an improved manner at higher operating speeds. The machine has a main crank arm with a rotary saw blade at one end and an adjustable counterweight at the opposite end, a stabilizing crank arm with a counterweight, and a connecting rod causing the arms to rotate in unison. Both arms telescope to permit simultaneous adjustments of arm radius while screw jacks adjust the height of the crank axis relative to the work. The work is supported on a wheel having a special sliding-block eccentric which moves the wheel in a vertical direction to deflect the work into the path of the rotary saw blade. A quickdrop support bracket permits lowering of the wheel and its eccentric away from the path of the work in an emergency situation so that flow from the mill need not be interrupted.

Abstract: The disclosure is directed to a rotary saw for cutting sections of scrap pipe in a pipe forming mill. The saw includes a frame, mounted for rotation above the pass line and carrying cutting saws at each of two ends, enabling two cuts to be made for each revolution of the rotary frame. The individual saw mechanisms are mounted for rotation in the frame and are tied to the stationary frame of the apparatus in a manner to maintain the saw blades at all times in a vertical plane for cutting a horizontally moving pipe. Both of the saws are driven by a common, motor driven shaft, which is concentric with the rotary mounting shaft for the saw frame and is gear-connected to the respective saw blades. A pipe lifting cam is synchronously associated with the rotation of the saw frame, for lifting, supporting and confining the moving pipe each time a saw blade moves into cutting position.