Abstract: A fly-cutting system is disclosed, and in particular one that comprises a dynamically-controllable actuator for controlling the position, orientation, or both position and orientation of a cutting element carried by a fly-cutting head. In certain embodiments, the actuator can adjust the position or orientation of a cutting element, or both, hundreds or thousands of times per second, enabling precise control over the shape of features formed by the cutting element in a surface of a workpiece.

Abstract: The cutting blade of a continuous motion saw is mounted on a skew arm which rotates about an axis which is skewed relative to the path along which the product to be cut is advanced. The blade rotates about an axis which is parallel to the path. The blade orbits in a planetary manner to compensate for the skew angle and to ensure that the blade remains perpendicular to the path. Grinding stones for the blade are mounted radially inwardly of the blade throughout the entire orbit of the blade.

Abstract: A cutting head for several rolls of kitchen towel and/or toilet paper, which may be positioned on a cutting machine (11) on which at least two rolls or logs (12) are supplied step by step by a pusher conveyor, the head (17) bearing a motorized cutting disc (20) which cuts the rolls (12) crosswise, set on a surface of the conveyor (14), the rolls (12) being guided in grooves (13), in which the head (17) includes a rotary arm in relation to a supporting structure (21), which, in turn, bears a rotary shaft (47) for at least one cutting disc (20), the rotary shaft (47) of at least one cutting disc (20), being motorized (in 38, 32) with the interposition of a transmission shaft (50) or a reduction gear with differential function (48) and being eccentrically movable in relation to a drive shaft (32) during the cutting operation according to a chosen logic, the drive shaft (32) transmitting the rotation to the cutting disc (20) and being parallel to a rotation central shaft (22) of the rotary arm (26).

Abstract: A sawing device for sawing a long object to a fixed size, said sawing device comprising a conveyor (1) for conveying the object to be sawn and blades (3, 4) rotated by a first power unit (2) for cutting the object. The sawing device comprises a rotatable frame (6) rotated by a second power unit (5), the blades (3, 4) being supported by said rotatable frame, a third power unit (7) and guide bars (8, 9) in the rotatable frame to allow the blades (3, 4) to be moved back and forth by the third power unit along the guide bars in the longitudinal direction of the object to be sawn.

Abstract: A method of operating an orbital saw to transversely sever superposed elongated web plies into shorter length products which includes advancing along a linear path superposed elongated web plies having a cross sectional area of at least about 3.5 square inches (2200 mm.sup.

Abstract: A rotor assembly for a synchronous reluctance machine has a plurality of steel punched star-shaped supports secured along a shaft at spaced locations for retaining a plurality of laminated rotor sections. The star-shaped supports have four equiangularly spaced arms having arcuate valleys disposed therebetween that define a plurality of channels for receiving the rotor sections. The rotor sections have a plurality of linearly-disposed apertures for receiving mounting members that extend radially from the valleys of the star-shaped supports. The portions of free ends of the mounting members that extend through the apertures, are stamped or formed to secure the rotor sections to the star-shaped supports. A rotor bar may be disposed within a concave cavity defined by the rotor sections to reduce audible noise produced as the rotor rotates at a high rate of speed.

Abstract: A sample removing tool comprises two partly spherical blades which are rotatably mounted on a carrier member about parallel axes. The cutting edges of the blades face each other and a portion of the cutting edges are arranged to lie in a nominal circle. The carrier member is rotatably mounted on a support member about an axis, the axis is perpendicular to a plane containing the nominal circle and passes through the center of the nominal circle. The axes of the blades are inclined to the axis of rotation of the carrier member. The blades are rotated about their axes and the carrier member is rotated about its axis such that the cutting edges of the blades move along the circumference of the nominal circle to cut a sample from a surface of a component arranged perpendicular to and intersecting the nominal circle.

Abstract: A method of operating an orbital saw for transversely severing elongated, superposed, multi-ply web material which includes advancing the web material along a path into a cutting station having a skew arm adjacent said path, rotating said arm about an axis skewed with respect to the path, the skew arm having a disc blade coupling means, such as a 4-bar linkage, mounted thereon and carrying a rotating disc blade with the blade axis spaced from the arm axis to cause the blade to intersect the path and cut the web material during the blade orbit, maintaining the blade axis at an angle skewed relative to the arm axis to position the disc blade continually perpendicular to the path whereby the disc blade makes a square cut through the web material, providing the coupling means with a grinding stone for the blade and a control for contacting the grinding stone and blade, and positioning the grinding stone radially inwardly throughout the entirety of the blade orbit whereby centrifugal forces are reduced and cyclic

Abstract: The machine cuts a roll or log (L) of web material into a plurality of small rolls (R). It includes a unit (17) rotating about an axis (A--A) parallel to the axis of the log (L) to be cut. The unit carries a cutting blade (19) rotating about an axis (B--B) parallel to the axis (A--A) of the unit (17). A driving device (61, 63) moves the cutting tool (19) into a reciprocating forward and backward motion parallel to the axis of the log (L) to be cut. At least at the time when the blade cuts the log, the blade moves parallel to the moving log at a translation speed substantially equal to the feeding speed of the log (L), so as to allow the cutting of small rolls (R) without stopping the log (L).

Abstract: A compensating linkage for a continuous motion saw for elongated web plies wherein a skew arm is pivotally connected at its ends to a drive arm and where the drive arm at its ends carries disc blades and sharpening grinding stones for the blades, the ends of the drive arm being pivotally connected for two degrees of freedom with brackets which in turn are connected to an eccentrically mounted control arm, the linkage resulting in compensation for the skew angle to provide a cut perpendicular to the movement of the web plies and reduction of centrifugal forces and elimination of cyclic centrifugal loading on the blade grinding systems.

Abstract: The machine cuts a roll or log (L) of web material into a plurality of small rolls (R). It includes a unit (17) rotating about an axis (A--A) parallel to the axis of the log (L) to be cut. The unit carries a cutting blade (19) rotating about an axis (B--B) parallel to the axis (A--A) of the unit (17). A driving device (61, 63) moves the cutting tool (19) into a reciprocating forward and backward motion parallel to the axis of the log (L) to be cut. At least at the time when the blade cuts the log, the blade moves parallel to the moving log at a translation speed substantially equal to the feeding speed of the log (L), so as to allow the cutting of small rolls (R) without stopping the log (L).

Abstract: The machine cuts a roll or log (L) of web material into a plurality of small rolls (R). It includes a unit (17) rotating about an axis (A--A) parallel to the axis of the log (L) to be cut. The unit carries a cutting blade (19) rotating about an axis (B--B) parallel to the axis (A--A) of the unit (17). A driving device (61, 63) moves the cutting tool (19) into a reciprocating forward and backward motion parallel to the axis of the log (L) to be cut. At least at the time when the blade cuts the log, the blade moves parallel to the moving log at a translation speed substantially equal to the feeding speed of the log (L), so as to allow the cutting of small rolls (R) without stopping the log (L).

Abstract: A method and apparatus for the operation of a skewed orbiting saw which is employed for transversely cutting continuously advancing elongated lengths of multi-ply material into shorter lengths, the means for varying the speed of advance of the lengths of material.

Abstract: A method and apparatus for sharpening saw blades having planetary motion in transverse cutting as for multi-ply webs in stacks or log rolls wherein a saw blade is carried on a planetary arm moving through an orbit skewed relative to the path of travel of the product to be cut, the grinding system being mounted on the planetary arm and including an adjustment arm carrying grinding stones; the adjustment arm being pivoted to bring the stones in contact with the blade and indexed so as to compensate for blade wear.

Abstract: A device for cutting a pipe including a first carriage, which is movable on the base of the device and has an outer cutter, and a second carriage mounted on the first carriage. The second carriage includes a plurality of guide rods arranged on a support arm so that when the support arm is rotated the guide rods draw a circle and the pipe is fed to fit on each of the guide rods interchangeably. Each guide rod has an inner cutter so that the outer cutter in cooperation with the inner cutter cuts the pipe while the first carriage is moved in the direction in which the pipe is fed into the device.

Abstract: A transverse cutting device for cutting into lengths a strip traveling continuously along a predetermined path, which device presents a drum for feeding and guiding the strip through a cutting station; and a cutting unit for successively cutting the strip transversely; at least one cutting element on the cutting unit being moved along an annular path lying in a plane intersecting the path of the strip in the cutting station, and along a given line forming an adjustable angle with a transversal intersecting the path of the strip; and the roller presenting peripheral grooves for longitudinally stretching the strip in the cutting station.

Abstract: A cutting device for a belt-like object is characterized by a pair of feed rollers and another pair of feed rollers which hold from both sides an object being supplied to be cut in succession. The rollers rotate at the same speed and are mounted in a horizontal direction respectively above and below the cutting position. The rotation of a main shaft driven by a motor is transmitted to a driving shaft of the pair of feed rollers placed above the cutting position through the main driving wheel of a one-way clutch. The rotation of the main shaft is also transmitted to a driving shaft of another pair of feed rollers placed below the cutting position through a subordinate driving wheel of said one-way clutch.

Abstract: An apparatus for transversely cutting logs of web material which are sequentially advanced along a first path and a rotating disc blade is mounted in said apparatus for movement in a second path through said first path from one side of the other of the first path to transversely sever said logs, a sharpener is provided in said apparatus for sharpening said blade. The apparatus is provided with structure for incrementally changing the relationship of said sharpener and said blade to compensate for diameter reduction of said disc blade. The apparatus is equipped with structure for altering the relationship of said paths to also compensate for diameter reduction of said blade.

Abstract: An apparatus for cutting openings in pipes of cuttable material, in particular in plastics drainage pipes has at least one cutter head carrying at least one cutter, the cutter head rolling at least in part on the periphery of the pipe and being positively driven for this by means of a planetary gear. By virtue of this, the cutting edge of the cutter moves around the pipe in an epitrochoid. The cutter head is provided with ridges engaging in transverse corrugations in the outer wall of the pipe.In order to be also able to cut openings in pipes formed at least in part with annular corrugations over their periphery, at least the cutter head is provided with helically extending ridges and the at least one cutter is disposed parallel to these ridges.

Abstract: Structural improvements in the mechanisms for supporting and driving the blade of an orbital saw. Improvements in the controls for the drive mechanisms for the winder and for the saw blade particularly as to increasing or decreasing the production rate of specified stick lengths.

Abstract: Orbit saw apparatus including a driven shaft rotatably supported in an upright mounting wall which is part of the frame in the apparatus. Orbit arm structure is rotatably supported on one end of said driven shaft, and an arbor shaft parallel to the driven shaft and mounting a circular saw blade is journalled on the orbit arm structure. A motor has its output shaft connected through belts to the driven shaft, and the driven shaft is connected for drive purposes to the arbor shaft. The motor also runs a pump, which is part of a pressure fluid supply system for an adjustable hydraulic motor which produces rotation of the orbit arm structure.

Abstract: Two chain-type endless belts are positioned to transversely span a continuously moving strip-like web, one belt facing each of the two major web surfaces, the belts oriented at an acute angle to the longitudinal web axis. Disk-type freely rotatable cutters are mounted on the endless belts for movement across the web with the blade cutting axes aligned perpendicular to the longitudinal web axis, and the endless belts are synchronized to provide cooperation between an individual blade on one belt and a corresponding blade on the other belt to engage and shear the web in a "scissoring" action. Another endless belt engages the last cut longitudinal web edge to provide biasing against unbalanced forces parallel to the major web surfaces produced by the blades.

Abstract: The apparatus employs two cutting discs which are spaced apart from each other laterally to sever plugs of different lengths from a travelling rod of filter material. The plugs alternate in size, for example, between 24 millimeters and 14 millimeters and are subsequently spaced apart so as to receive charcoal or other particulate filter material in the intermediate spaces. The resulting filter has the charcoal chamber closer to the tobacco end of the cigarette than to the exposed end of the cigarette. The cutting discs are mounted on a drum which rotates in synchronism with a recessed ledger through which the respective cutting discs pass to sever the travelling rod of filter material.

Abstract: A method and apparatus for the transverse cutting of elongated material such as superposed web plies (for example, a convolutely wound log) wherein the material is uniformly advanced along an axial path and a cutting disc blade is moved through an orbit in planetary fashion which intersects the path and is skewed relative thereto while the disc blade is rotating in planes perpendicular to the path.

Abstract: An apparatus for cutting conveyed materials, preferably webs or strand-shaped articles formed of reinforced or non-reinforced rubber by means of a rotating, oscillating or stationary knife or cutter, wherein the apparatus comprises a cutter car or carriage and a drive motor with a crank. The cutter is mounted upon a balance or rocker constructed as a lever. The balance is actuatable by means of the crank and the cutter describes a closed kinematic path of travel.

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.

Abstract: A machine for the hot shearing of rolled product as it emerges from continuous casting plants incorporates a driven cutting disk fitted to a shaft and a carrier given the form of a shaft supported by bearings inside the housing of a reducer; the diameter of one of the bearings is smaller than the diameter of cutting disk and radius of this bearing is bigger than the distance between the parallel axes of carrier and disk shaft, said distance being also not smaller than half the size of the rolled product in its cross section.

Abstract: A method and apparatus for producing staple fibers of a predetermined length from a substantially endless tow of fibers. The tow of fibers is fed onto needles carried in rows on a carrier under tension. The carrier is rotated past a cutting area and a depositing area. As the rows of needles pass the cutting area the tow of fibers is raised away from the surface of the carrier to enable cutting of the fibers by a cutter blade. The cut fibers are held by the needles until such reach the depositing area wherein the particular row of needles is retracted to deposit the cut fibers on a receiving means.

Abstract: A method and apparatus for the transverse cutting of elongated material such as superposed web plies (for example, a convolutely wound log) wherein the material is uniformly advanced along an axial path and a cutting disc blade is moved through an orbit in planetary fashion which intersects the path and is skewed relative thereto while the disc blade is rotating in planes perpendicular to the path.