With Means To Monitor And Control Operation (e.g., Self-regulating Means) Patents (Class 83/72)
  • Patent number: 5694821
    Abstract: A positioned sensing device measures and/or calculates the lateral position and movement of a saw blade. These measured and calculated values are used to automatically alter the work-feed rate and/or saw blade rim speed either up or down as sawing conditions change within the work piece or between different work pieces.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: December 9, 1997
    Assignee: Simonds Industries, Inc.
    Inventor: H. Reid Smith
  • Patent number: 5678465
    Abstract: A measuring apparatus for measuring the thickness of slices taken from biological tissue samples by a microtome. The apparatus integrates a digital micrometer, a drive motor, sensing and control circuitry, and a mounting plate, and is designed to be attached to the top of a Krumdieck or similarly designed microtome for measuring the thickness of slices produced. The apparatus is designed so that the spindle of the micrometer is positioned in vertical alignment with the tissue well and plunger of the microtome. The user initiates downward movement of the spindle by depressing a down switch and control circuitry actuates the drive motor to advance the spindle of the micrometer down toward the top of the plunger until the bottom surface of the spindle contacts the plunger. The bottom surface of the spindle is electrically connected to a power source, and the plunger is electrically connected to the control circuitry.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: October 21, 1997
    Inventor: Carlos Krumdieck
  • Patent number: 5673601
    Abstract: A breakthrough buffer for a mechanical press (1) includes at least one buffer body (20) disposed between punch slide (2) and lower press frame (7) to cushion punch plate (3) during breakthrough of punch (4) through a workpiece, a timing regulator (40, 70, 90) connected to each buffer body for regulating timing of buffering during breakthrough, and a control system (60) to provide a command signal to this regulator to minimize noise or vibration occurring during the breakthrough. The control system includes a controller (63) which is responsive to the output of noise sensor (61) or vibration sensor (65) during breakthrough. The buffer body can include fluid driven buffer piston (22) in a buffer cylinder (21), with the buffer piston being associated with a guidepost (5). Alternatively, the buffer body can include piston (82) which contacts the guidepost and which is fluid driven (30, 81) in opposition to spring (83).
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: October 7, 1997
    Assignee: Komatsu Ltd.
    Inventors: Kikuo Ejima, Kenji Nishikawa, Kazuya Imamura, Kazuhisa Suzuki, Shigeki Iwasaki, Tatsunori Suwa
  • Patent number: 5572916
    Abstract: In a desk-top cutting machine, a magnet 24 and a magnetic pickup 22 are attached to a motor shaft 12. A control circuit 28 is provided for controlling a TRIAC 23 in response to the signal from the detection means. Further, a dynamic braking coil 25 which serves as braking means for a motor 11 when power supply to the motor 11 is stopped is provided in the motor 11. The dynamic braking coil 25 stops within a time during which no slip is produced between the motor shaft 12 and endless belt 18 and between the cutting blade shaft 10 and endless belt 18. In this way, the rpm and torque of the motor are controlled from motor starting to cutting and motor stopping.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: November 12, 1996
    Assignee: Hitachi Koki Haramachi Co., Ltd.
    Inventor: Shinji Takano
  • Patent number: 5573335
    Abstract: A direct temperature sensing tool directly senses and provides feedback of the temperature of its cutting environment. The tool comprises a base body defining at least one cutting edge of the tool. A protective coating surrounds the base body and the cutting edge, the protective coating providing a friction-reducing surface for the tool. A thin film temperature sensing device, such as a thermocouple device, is disposed on the base body at a distance from the cutting edge. The temperature sensing device is encapsulated within the protective coating. An electrical connection is defined through the protective coating in electrical communication with the temperature sensing device. The tool is configurable with a machine tool so that the temperature sensing device is in communication with a conversion device of the machine tool for providing an indication of the temperature sensed by the temperature sensing device.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: November 12, 1996
    Inventor: Robert Schinazi
  • Patent number: 5398575
    Abstract: The apparatus according to the invention comprises a cutting wheel (1) provided with a multiplicity of cutting knives (3) disposed in a circle in a knife mount (2) and spaced apart at predetermined distances corresponding to the desired staple, at least one pressure roller (4) for producing on the wound material in sliver or strand form a cutting pressure acting on the cutting knives (3), an opening and closing device (5) by means of which the pressure roller (4) can be moved a predetermined distance away from the cutting wheel (1) or towards the cutting wheel (21), an adjusting member (6) by which a preset distance can be adjusted between the pressure roller (4) and the cutting knife (3) lying nearest to said pressure roller (4), a damping means (7) by which, in conjunction with the adjusting means (6), the contact pressure exerted by the pressure roller (4) on the material in sliver or strand form lying on the knives (3) can be so adjusted that the cutting power of the apparatus remains practically unchange
    Type: Grant
    Filed: February 4, 1993
    Date of Patent: March 21, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Siegfried Rewitzer
  • Patent number: 5381342
    Abstract: A strip is displaced longitudinally with its edges parallel to a stationary machine centerline at a predetermined travel speed through a monitoring station and through a trimming station spaced downstream from the monitoring station and equipped with a pair of transversely offset trimming heads. The transverse offset of the strip edges relative to the machine centerline is continuously monitored at the monitoring station and respective outputs corresponding to the transverse offsets between the respective edges and the machine centerline at the monitoring station are produced. The time the strip takes to travel from the monitoring station to the trimming station is calculated based on the strip travel speed and the longitudinal spacing between the stations. The trimming heads are transversely displaced in accordance with the calculated time and the respective transverse edge offset such that the heads remain in contact with the strip. Continuous edge portions are thus cut from the strip with the heads.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: January 10, 1995
    Assignee: BWG Bergwerk- und Walzwerk- Maschinenbau GmbH
    Inventor: Oskar Noe
  • Patent number: 5327353
    Abstract: A state of an operation of cutting a rubber sheet having a number of parallel cords embedded therein by moving a cutter in a cutting direction which is in parallel with a direction in which the cords extend is detected by monitoring a first displacement of the cutter in a direction of a thickness of the rubber sheet and a second displacement of the cutter in direction perpendicular to the cutting direction. When the first displacement of the cutter exceeds a predetermined threshold value, there is produced a comparison signal having a predetermined time period. In response to the comparison signal, the second displacement of the cutter is compared with a second threshold value within the time period of the comparison signal, and when the second displacement of the cutter exceeds the second threshold value, there is produced an alarm signal which represents that the cutting operation is not carried out correctly.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: July 5, 1994
    Assignee: Bridgestone Corporation
    Inventor: Jun Nagano
  • Patent number: 5279195
    Abstract: An apparatus for continuously transporting, separating, and changing the path of webs in machines for processing webs prior to further processing are disclosed. A web consisting of at least one ribbon of material is conveyed by a pair of nip rollers arranged in a first transport path. When it is desired to separate and convey the web, for example when the web is of insufficient quality, a separating flap pivotally mounted on a first rotary axis located above the first transport path pivots downward cutting and directing the web to a second transport path. A blade flap pivotally mounted on a second rotary axis located below the first transport path opens and closes the transport path to the web. When the blade flap is in the closed position it bridges a gap between a lower guide and a guide section to allow the conveyance of a web through the first transport path.
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: January 18, 1994
    Assignee: Heidelberg Harris, Inc.
    Inventor: Richard E. Breton
  • Patent number: 5265506
    Abstract: Method and apparatus for fabricating a perforated film comprising the steps of pinching a film material, (3) between a cutter roll (1) with cutting edges (12) and a backing roll (2) to press the cutting edges (12) to the film material (3) and driving, to rotate least one of the cutter roll (1) and the backing roll (2), to form holes such as slits in a film material. The apparatus is decelerated by a stop command signal of an apparatus, detecting the speed of the apparatus attaining a predetermined small speed, generating an advance stop signal when the apparatus is approaching a stop a condition, and displacing the backing roll (2) so that the cutter roll is separated from the backing roll.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: November 30, 1993
    Assignees: Nippon Petrochemicals Company, Limited, Polymer Processing Research Inst., Ltd.
    Inventors: Kintaro Aihara, Tadashi Honda
  • Patent number: 5251681
    Abstract: A method and associated apparatus for selecting a target rate of board treatment by a woodworking tool, measuring the difference between the actual rate of board treatment by the woodworking tool and the selected target rate, calculating the tool speed required to reduce the difference between the target rate and the actual rate to zero, and then periodically adjusting the tool speed of the woodworking tool based on the calculated speed required to reduce the difference to zero.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: October 12, 1993
    Assignee: Newman-Whitney
    Inventor: David K. Davenport
  • Patent number: 5237897
    Abstract: The invention provides a bandmill having an endless loop of bandsaw blade which is automatically strained to a desired tension, and automatically driven at an accurate location or tracking position. The bandmill runs on a pair of spaced co-planar wheels, which are forced longitudinally apart to apply strain to the bandsaw. Actual saw strain is automatically detected by a force transducer within the strain mechanism, and the actual saw strain is automatically compared electronically with a desired saw strain. A servo-controller automatically adjusts distance between the wheels to vary force therebetween so that actual saw strain is varied to approach the desired saw strain. Also, actual tracking of the saw blade relative to the wheels is automatically sensed by sensors located adjacent the edge of the saw blade.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: August 24, 1993
    Assignee: Seneca Sawmill Company
    Inventors: Ralph Wijesinghe, Edward H. Komori
  • Patent number: 5230764
    Abstract: A process is described for producing garments or individual parts thereof from at least one top fabric, from which the cuts belonging to a garment are cut out in a cutting device and are fed to further processing, wherein, if desired, cuts of a predetermined type are provided with coated lining parts and are attached thereto, wherein during the cutting of the cuts, at least those cuts which will subsequently be provided with lining parts are provided mechanically with marks, and during the attachment of cuts to lining parts, at least one of the parts to be attached is provided with a mark immediately before, during or after the attachment. Separate marking in an operation intended especially for this purpose is thus avoided.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: July 27, 1993
    Inventor: Philipp Moll
  • Patent number: 5226335
    Abstract: A device automatically applies an object (7) to a cutting edge (11) of a knife 10), and automatically makes an initial cut in the object (7), in microtomes, especially ultramicrotomes. Force sensors (27,28), length sensors (29) or other sensors, an elecrotronic control unit (25) and an encoder (22) coupled to a drive device register forces (k,-k) connected with the separation of sections by the knife edge (11) or variations in the system triggered by these forces. Subsequently, via the electronic control unit (25), a transition from a rapid speed or rate of feed to a lower cutting speed or a lesser rate of feed for making an initial cut is automatically performed. A visual and/or acoustic signal informs the user of this change. Signals (S.sub.1, S.sub.2) from the sensors (27-29) serve for automatic adjustment of the position of two switch-over points (U.sub.1, U.sub.2) from the rapid return speed (V.sub.R) to the slower cutting movement (V.sub.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: July 13, 1993
    Inventors: Hellmuth Sitte, Helmut Hassig, Armin Kunz, Klaus Neumann
  • Patent number: 5216614
    Abstract: In a machine and method for automatically cutting a length of sheet work material segment-by-segment to separate two dimensionally shaped pieces from it, registration between lines cut in adjacent segments is enhanced by the use of X and Y coordinate sensors carried by the X beam of the machine and having X and Y wheels respectively rotatably engaging the top surface of the work material to detect displacement changes between the X beam and the work material in the X and Y coordinate directions which detections are used to slave the advancement of the X beam to the advancement of the work material and to provide X and Y coordinate offset adjustments to the X and Y sets of control signals used to drive the cutter head in the X and Y coordinate directions during the cutting of the next segment of the work material.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: June 1, 1993
    Assignee: Gerber Garment Technology, Inc.
    Inventors: Richard Kuchta, Joseph R. Vivirito, Kevin A. Pearl
  • Patent number: 5181443
    Abstract: A device for controlling the drive and forward feed of a microtome, particularly an ultramicrotome, includes a driving motor for moving a specimen or knife and a servomotor for generating a forward feed of the specimen towards an edge of the knife or vice versa. A high travelling speed of the specimen needed for rapid initial cutting is coupled to a high rate of forward feed. One single switching operation is performed, for instance, by a snap-engaging step switch via relay switches. The driving motor and the servomotor can be simultaneously switched over to pairs of values which correspond to subsequent rough cutting and ultra-thin cutting. Individual values for cutting speed and forward feed are separately preselected, readjusted, and read from a display. Selected program stages are indicated by signals.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: January 26, 1993
    Inventors: Hellmuth Sitte, Helmut Hassig, Armin Kunz, Klaus Neumann
  • Patent number: 5176055
    Abstract: A bandmill has first and second wheels and an endless saw blade trained about the wheels. The wheels are mounted to rotate about respective axes which lie in a common plane, but the first wheel is adjustable in position relative to the second wheel with respect to both its distance from the second wheel and its orientation relative to the second wheel. A tensioning mechanism is effective to force the first wheel away from the second wheel, while maintaining the axes of rotation of the two wheels substantially parallel, in response to a signal which is provided by a load cell and represents the tension in the saw blade. A wheel tilt mechanism is effective to adjust the angular position of the first wheel relative to the second wheel in response to a signal indicating the path followed by the saw blade, for maintaining the blade on a proper path.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: January 5, 1993
    Assignee: Seneca Sawmill Company
    Inventors: Ralph Wijesinghe, Edward Komori, Joseph LaChapelle, Mark L. Carter
  • Patent number: 5129298
    Abstract: An automatic machine is provided for slicing non-rigid products, such as foodstuffs or meats. The machine includes a carriage with a plate supporting the product to be sliced. This carriage is mobile in relation to the cutting assembly which permits the product to be sliced. The machine further including a device for removing the cut slices. A control circuit is provided for receiving information from a detector. An input terminal controls the angle between the plate of the carriage thereby making the angle between the plate and the carriage adjustable.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: July 14, 1992
    Assignee: Societe des Viandes Bretagne Anjou-Soviba la Noelle Ancenis (Loire Atlantique) France
    Inventors: Christian Cresson, Pascal Boucher, Jean Saget
  • Patent number: 5125250
    Abstract: A bloom is heated and rolled by the flying shear system so as to produce a semi-finish rolled billet having a reduced cross section. A CLSI value, which is indicative of the uniform length of each of a number of product billets that can be cut from the length of the semi-finish rolled billet while maintaining predetermined optimum head and tail scrap lengths, is then calculated by the flying shear system. The cross section of the semi-finish rolled billet is corrected, so as to produce a finish rolled billet having an adjusted length, when the CLSI value is not within a safety billet length range, to thereby obtain a new CLSI value that falls within the safety billet length range. A flying shear cuts the semi-finish rolled billet or the finish rolled billet into the number of product billets when the CLSI value is within the safety billet length range.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: June 30, 1992
    Assignee: China Steel Corporation
    Inventor: Kuan-Yung Sun
  • Patent number: 5117717
    Abstract: An apparatus and method are provided for the slicing of bacon bellies or the like in a manner such that each draft of bacon is of the same weight, irrespective of the topography and density of the belly from which the draft is sliced. A dimensioner assembly has a plurality of pivotally mounted fingers having one end which engages the belly and another end which is a cam surface for transmitting movement of the fingers to a receptor such as an electromicrometer. The finges engage the top, bottom and both longitudinal sides of the belly, and the data thus collected are then transformed into a topography schematic which is particular for each specific belly passing through the dimensioner assembly. These topography data and data concerning the make-up of the particular belly are used for controlling movement of feed into a bacon slicer. Included is a feed assembly which positively and precisely feeds the belly into the slicer.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: June 2, 1992
    Assignee: Oscar Mayer Foods Corporation
    Inventor: Timothy G. Mally
  • Patent number: 5115403
    Abstract: A workability detection method for a workpiece consisting of the steps of cutting a workpiece, based on specified cutting conditions, detecting the cutting resistance during the cutting operation, or the cutting time or the amount of tool wear to make a cut up to a specified position of the workpiece, or the feeding position of the cutting tool on a workpiece or the amount of processing of the cutting tool after a specified cutting time and comparing the detected data with corresponding data which is stored in a data base.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: May 19, 1992
    Assignee: Amada Company, Limited
    Inventors: Akiyoshi Yoneda, Mitsuyoshi Sawamura, Kikuo Tanaka, Takashi Kokado
  • Patent number: 5099731
    Abstract: A punch press, which is controllable by a control apparatus according to a design characteristic curve for the depth of immersion as function of the number of strokes, is provided with a control input, by means of which a correcting value can be inputted. The punch press operates then at a new point of operation. At a change of the number of strokes, the control apparatus computes with the correcting value and the present design characteristic curve a new design characteristic curve. Such punch press allows the production of punched and embossed products at a higher precision within the entire range of number of strokes.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: March 31, 1992
    Assignee: Bruderer AG
    Inventor: Oskar Eigenmann
  • Patent number: 5094282
    Abstract: A lumber processing apparatus provided with a woodworking router for cutting and processing a material to be processed into a predetermined shape by a cutting edge subjected to numerical control, includes a carriage for removing a material to be processed from a storage area and storing a processed product into the storage area, a supplying table lifter for receiving the material to be processed from the carriage, a first robot for transferring the material to be processed on the supplying table to a sending-in conveyor, a woodworking router for automatically processing the material to be processed, a conveyor for carrying the product processed by the woodworking router, a second robot for transferring the product carried by the conveyor to a carrying-out table lifter, and a control unit for controlling these systems.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: March 10, 1992
    Assignee: Heian Corporated
    Inventors: Yukitomo Suzuki, Masayuki Kawashima, Takeshi Oguri, Takayuki Shimizu, Masakazu Honda
  • Patent number: 5086633
    Abstract: A punch press is oriented horizontally with the first and second opposed tools being mounted on first and second members both of which are movable horizontally. These motion members are driven with rapid acceleration toward each other for impacting the fast-moving first and second tools simultaneously against opposite sides of material to be formed between the tools. The two opposed motion members are arranged for the momentum of the first tool with its associated moving parts at the instant of impact be equal to the momentum of the second tool with its associated moving parts so that equal and opposite impulses resulting from momentum cancel each other out. As a result of this opposed motion with momentum-balanced-at-impact, very little energy or work is wastefully lost into the platform on which the punch press is supported and only an insignificant or very modest amount of mechanical shock and vibrations are induced into t he platform.
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: February 11, 1992
    Inventor: George M. Meyerle
  • Patent number: 5083351
    Abstract: By means of a bracket located above the turntable the twisting of the textile article threaded through this bracket can be scanned and measured by a feeler means. Upon the twisting the bracket will rotate by a certain angle. If a preset angle of rotation is exceeded, the feeler sends a control signal to the control apparatus. This control apparatus controls the relationship circumferential speed feeding cylinders to rotational speed turntable. By means of such controlling an extremely fine regulating can be made, which may be necessary, for instance, due to the slip between the tubular textile article and the feeding cylinders. The upper edge of the textile article being cut is scanned by means of at least one scanner. The location of the scanning is preferably between the final feeding cylinder (seen in direction of movement of the textile article) and the cutting tools of the cutting apparatus.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: January 28, 1992
    Assignee: Maschinen AG Swegea
    Inventors: Ferdinand Gabathuler, Nikola Krmpotic, Erik G. Nilsson
  • Patent number: 5079981
    Abstract: Apparatus for cutting the leading and trailing edges of an opaque sheet angling initially at an offset angle with respect to a cutting blade includes a pair of light sources and a pair of light sensors opposite said light sources. An opaque sheet to be cut is moved at right angles to a line extending between said pairs of light source and sensors to bring said article edges to and past said pairs of light sources and sensors. The sensors produce article edge angle indicating signals which indicate the time difference each edge reaches said pair of sensors. Means are provided responsive to said signals which adjust the blade angle to be parallel to each article edge so the blade cuts parallel to each edge. The angle indicating could be signals which are a direct measure of the difference in times each edge reaches the sensors.
    Type: Grant
    Filed: February 6, 1991
    Date of Patent: January 14, 1992
    Assignee: D&K Custom Machine Design, Inc.
    Inventors: Karl Singer, Michael D. Flasza
  • Patent number: 5079874
    Abstract: An automatic grinding machine for cleaning castings, including a machine stand, supporting mutually adjustable clamping or holding devices for processing a casting, and further including a tool holder, on which a grinding and/or cutting-off disk is adjustable with respect to the casting via a sliding device supported on a machine support, permits non-contact, precise generation of a control signal. The clamping devices are electrically insulated from the machine stand, and the grinding and/or cutting-off disk is electrically insulated from the tool holder. The grinding and/or cutting-disk is electrically conductive. The grinding and/or cutting-off disk and the clamping devices, including the casting held therebetween, are series-connected to a regulable high-tension generator and an ignition current evaluating switching unit, which supplies the control signal.
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: January 14, 1992
    Inventor: Werner Luber
  • Patent number: 5080540
    Abstract: A dedicated V-shaped groove forming machine comprises an X-axis slider disposed over a plate material so as be movable in an X-axis (groove forming direction); a Z-axis slider supported by the X-axis slider so as to be movable in a Z-axis direction (vertical direction); and plural cutting tools mounted on the Z-axis slider; and a Y-axis carriage for moving a plate material (workpiece) in a Y-axis direction (perpendicular to the X-axis direction). Further, there are provided work table adjusting device for adjusting the cutting tool movement locus in parallel to the work table and tool height detecting device for determining an origin in the Z-axis direction, etc.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: January 14, 1992
    Assignee: Amada Company, Limited
    Inventors: Nobuo Abe, Nobuyuki Kinnou, Toshihide Ohara, Kazunori Kuga, Yoshiharu Komizo, Takara Kibe, Hideyuki Fujikawa
  • Patent number: 5078559
    Abstract: A dedicated V-shaped groove forming machine comprises an X-axis slider disposed over a plate material so as be movable in an x-axis (groove forming direction); a Z-axis slider supported by the x-axis slider so as to be movable in a Z-axis direction (vertical direction); and plural cutting tools mounted on the Z-axis slider; and a Y-axis carriage for moving a plate material (workpiece) in a Y-axis direction (perpendicular to the X-axis direction). Further, there are provided work table adjusting device for adjusting the cutting tool movement locus in parallel to the work table and tool height detecting device for determining an origin in the Z-axis direction, etc.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: January 7, 1992
    Assignee: Amada Company, Limited
    Inventors: Nobuo Abe, Nobuyuki Kinnou, Toshihide Ohara, Kazunori Kuga, Yoshiharu Komizo, Takara Kibe, Hideyuki Fujikawa
  • Patent number: 5072639
    Abstract: Disclosed is a method and apparatus for removing wastepaper (W) from a continuous web(2) of photographic paper upon which photographic images (P.sub.1, P.sub.2 . . . ) have been printed. Between each photograph there exists a cut mark (4) that instructs a photographic print cutter (1) where one photograph ends and an adjacent photograph begins. The method comprises advancing the web to a point where a cut mark is expected and sensing the presence or absence of a cut mark. If a cut mark is sensed, the web is advanced to align the cut mark under a cutting knife (8) and the cutting knife is cycled. If a cut mark is not sensed, the web is reversed a predetermined reverse length before the cutting knife is cycled. By reversing the web the predetermined reverse length, it is assured that any length of wastepaper cut from the web will at least be as long as the reverse length. The reverse length is long enough to prevent jamming of the print cutter.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: December 17, 1991
    Assignee: Gretag Systems, Inc.
    Inventor: Richard A. Dolf
  • Patent number: 5069098
    Abstract: Limit switch for the positioning of cutting machines in a machine for the cutting of plastic and/or paper materials in strips of predetermined width, this cutting unit being slidable on supporting beams, which device includes a source (31) of a ray of light (50) parallel to the supporting beam (24) of the cutting units (12); a tappet (33) of this ray of light; a rotating L-shaped plate (36) hinged in (40) to one side of the base of each cutting unit (12) and maintained in parallel position to said ray of light (50) by a spring (42); an actuating plate (38) fixed in adjustable position to the other side of each cutting unit, in opposite position and aligned with said rotating L-shaped plate (36); and an electronic station driven by the interception of said ray of light (50).
    Type: Grant
    Filed: July 24, 1990
    Date of Patent: December 3, 1991
    Assignee: Elio Cavagna S.r.l.
    Inventor: Elio Cavagna
  • Patent number: 5058470
    Abstract: Hydraulic sawing cycle control system for an undercut swing saw. Hydromotor 5 with crankshaft 7 fitted thereon without play drives the sawing lever arm 2 via a connecting rod 3. One revolution of the hydromotor corresponds to one saw cut. The hydromotor 5 is thereby controlled via a proportional valve. The path of movement of the sawing cycle can advantageously be regulated.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: October 22, 1991
    Assignee: Firma Dimter GmbH Maschinenfabrik
    Inventor: Adolf Frohlich
  • Patent number: 5057068
    Abstract: The invention is directed to a device for sidewise shifting and positioning of a tool in a slotting station situated within a machine used for processing sheet-like workpieces. The station includes a creasing tool, a counter tool, which are mounted on a first pair of vertical, arranged horizontally extending shafts, a slotting tool and counterpart, both fitted on a second pair of shafts arranged downstream of the first pair, a master plate being held in the transfer direction of the workpiece by two crosswise shafts, one of which is for guiding and the other is for shifting the master plate on the guiding shift, the plate having an arrangement for gripping each of the upper tools of the pairs of tools, which arrangement includes an arrangement for laterally shifting the arrangement for one of the two tools relative to the master plate while holding the tool simultaneously fully parallel to the master plate.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: October 15, 1991
    Assignee: SA Martin
    Inventor: Bernard Capdebosc
  • Patent number: 5031493
    Abstract: A shear mechanism is controlled by ultrasonically calipering the bar stock and adjusting the length of sheared bar stock to assure a uniform volume of metal bar stock in the sheared product. A plurality of ultrasonic transducers are carried in a common frame and centered on the bar stock using the same ultrasonic calipers.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: July 16, 1991
    Assignee: Xecutek Corporation
    Inventor: John A. Dorr
  • Patent number: 5029502
    Abstract: The present invention is drawn to a method an an apparatus for cutting a sheet member embedded with wires for use in tire, having the following characteristics. That is, a wire-embedded member is cut with a rotatable cutter at the middle of the member in a width-wise direction thereof while applying a pushing force, effected by a high pressure, on the cutter. The cutter is shiftably and rotatably mounted on a frame so as to be movable in a shifting direction while rotating. The cutter movement may also deviate in a direction orthogonal to the shifting direction thereof. The completion of the cutting at the middle of the member is detected by an electrical connection between the cutter and a support member, which connection is confirmed by a confirmation control mechanism. The cutter is shifted by a pushing mechanism from the middle to one side edge of the sheet member under a pushing force, effected by a pressure lower than that of the high pressure, so as to carry out a first half of a cutting operation.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: July 9, 1991
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventor: Nobuhiko Irie
  • Patent number: 5025593
    Abstract: A slicing machine of this invention includes a blade having a cutting edge for slicing a silicon ingot, a tension disk for rotatably supporting the blade, a drive motor for rotating the blade, a deformation detection mechanism for detecting a deformation amount of the blade, and a control unit responsive to the measured deformation for correcting the relative position between the support base and the blade. A control method of the slicing machine is also disclosed.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: June 25, 1991
    Assignee: Mazda Motor Corporation
    Inventors: Keishi Kawaguchi, Tatsumi Hamasaki, Yoshihiro Tadera, Sachio Yamazaki
  • Patent number: 5022295
    Abstract: There is provided a method and apparatus for maintaining the cutting conditions constant at a rotary punch by bringing the rotary punch to a constant, predetermined temperature and maintaining the rotary punch at that temperature. Tempering elements are included in the rotary punch so as to maintain constant and set the spacing of the cylindrical envelope described by the cutting edge or edges from the opposing tool.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: June 11, 1991
    Assignee: Winkler & Dunnebier Maschinenfabrik und Eisengiesserei KG
    Inventor: Kurt Stemmler
  • Patent number: 5007315
    Abstract: A servicer is described for supplying two cut-to-length strips of sidewall simultaneously to a tire building drum without handling by the tire builder, thereby eliminating any stretching of the sidewalls or distortion of the shape of the sidewalls which can happen when the sidewalls are physically handled by the tire builder. The servicer employs twin cassettes which contain two spools of spirally wound sidewall which is separated by a comparatively rigid, U-shaped protective liner.The servicer has an indexing table for moving twin cassettes from a standby position to a let-off position to a take-up position and, lastly, to a removal position where the cassette is removed for rewinding with new material.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: April 16, 1991
    Assignee: General Tire, Inc.
    Inventors: Joseph H. Alexander, Stanley L. Radcliffe, Martin N. Robertson, Eugene A. Bator, John E. Anderson
  • Patent number: 4982772
    Abstract: Method and apparatus for scaling, sorting, processing, cutting-up and the like of elongate timber items with two substantially parallel, longitudinal surfaces achieved by processing, during longitudinal feed of the item, including determination of a given lateral position and/or form of the item at at least one position along the item, e.g., a cross-section or cross-sectional element, with the aid of sensing means. The method determination takes place with the aid of touch-free distance-sensing means with predetermined measuring directions, fixed and discrete, for determining distances to at least two measuring points on the surface of the timber item, said measuring points being substantially in a cross-section or cross-sectional element of the timber item and on either side of a reference line across the cross-section or cross-sectional element.
    Type: Grant
    Filed: September 28, 1987
    Date of Patent: January 8, 1991
    Assignee: Hans Dutina Research & Development AB
    Inventor: Hans Dutina
  • Patent number: 4967285
    Abstract: A method of cutting off recording paper on a facsimile apparatus is disclosed in which the recording paper wound as a roll is sequentially fed through the apparatus so that the paper is cut off by a cutter after the recording on each sheet area of the paper is performed. The method comprises a stop in which the torque of an electric motor is transmitted to a platen roller through a gear train so that the recording on the (n+1) th-sheet area of the recording paper is performed continuously after the recording on the nth-sheet area of the paper; a step in which when the boundary between the nth-sheet area and the (n+1)th-sheet area has reached the cutoff position, the recording on the (n+1)th-sheet area is temporarily stopped and the backlash of the gear train is compensated for by rotating the motor backward; a step in which the recording paper is cut off by the cutter; and a step in which the backlash of the gear train is compensated for again by rotating the motor forward.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: October 30, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Hiroshi Tabuchi
  • Patent number: 4942795
    Abstract: A saw apparatus comprises an operatable saw blade and a holding arm for gripping an object to be sawed, plus means for moving the saw blade and holding arm together to cause the saw blade to engage the object for sawing under controlled-pressure conditions. The saw blade is carried by strain gauge means, the strain gauge means being part of electronic means for sensing the load of the operatable saw blade on the strain gauge means. Thus, pressure of the object for sawing against the top of the saw blade causes an increase in the load sensed by the strain gauge. The electronic signal generated thereby may be used in a feedback system to control the pressure of the workpiece against the saw blade.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: July 24, 1990
    Assignee: Buehler Ltd.
    Inventors: Thomas A. Linke, Alan W. Wilkerson, Ashok K. Parida
  • Patent number: 4942796
    Abstract: A stock feed and cutter system for forging machines and the like in which stationary grippers and linearly movable grippers alternately grip rod or wire stock. The movable grippers reciprocate toward and away from the stationary grippers and operate to feed the stock without slippage a precise distance into a cutter. A stock gage is therefore not required and an optimum cutter structure can be provided even for very short workpieces. After each feed operation, the cutter shears a workpiece from the end of the stock, which is subsequently formed to a desired shape. A running adjustment is provided for the reciprocating grippers so that the machine operator can adjust the length of the workpiece produced while the machine is running. A short blank detector independently measures the length of stock being fed and is connected to cause rejection of such short blank. The grippers operate without slippage and, in cooperation with the cutter, produce very uniform workpieces.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: July 24, 1990
    Assignee: The National Machinery Company
    Inventors: Harry A. Dom, John A. Maistros
  • Patent number: 4928713
    Abstract: A rod cut-off in a cigarette making machine includes a cutting device 32 having a first drive 34, a ledger 10 for supporting the rod during cutting and having a second drive 22, separate from the first drive, a device for synchronizing (prefereably electronically) the first and second drives during normal operation, and a device 40 for mechanically displacing the ledger or cutting device (preferably the former) from the normal position in which it co-operates with the other member to perform rod cutting, the displacement being arranged to occur while the machine is being accelerated from start; that is, during the time while the two drives are being brough into synchronization.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: May 29, 1990
    Assignee: Molins PLC
    Inventor: Hugh M. Arthur
  • Patent number: 4913014
    Abstract: A band-sawing machine is provided opposite to the intended workpiece location with a movable work unit comprising the saw-band and its drive mechanism. The rate of travel of said movable work unit is reduced by a hydraulic circuit provided with a device for regulating the rate of flow. In addition, the hydraulic circuit includes a valve which is capable of limiting or even of interrupting the flow of fluid. The operation of the valve is controlled by a means responsive to an increase in the resistance set up in opposition to the driving tension of the saw-band. The arrangement is such that an increase in said resistance produces a limitation of the flow rate within the hydraulic braking circuit and consequently a reduction in the rate of travel of the movable work unit.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: April 3, 1990
    Inventor: Patrick Missler
  • Patent number: 4901612
    Abstract: Band saw apparatus is disclosed which includes cutting enhancement apparatus formed for tilting of the cutting stretch of the band saw blade to vary the force per unit area of the cutting edge of the blade on the workpiece. The cutting enhancement apparatus which tilts the blade at both guide assemblies is shown. The saw carriage is movably mounted to the remainder of the saw to be substantially free to rebound or move away from the workpiece during tilting of the blade to avoid digging in or shearing off of the blade teeth and to permit close spacing of the blade guides next to the workpiece. The saw includes a feed control system having both an orifice control circuit and a support force control circuit. A method is disclosed which is comprised of using the support force circuit to vary the rate of cutting during the cut to prevent overloading of the blade and/or stalling of the machine. Sensors feedback signals which adjust the support force circuit to control feeding.
    Type: Grant
    Filed: May 12, 1987
    Date of Patent: February 20, 1990
    Inventor: Gerald R. Harris
  • Patent number: 4901992
    Abstract: A manual stock stop is diclosed including a track assembly and a sliding stop assembly. A cable-activated electromechanical position transducer sends an electrical signal corresponding to the position of a stop bar mounted on the top assembly to a monitor/control unit which displays the position of the stop bar. A fine adjustment mechanism in the stop assembly allows for precise positioning of the stop bar. An automatic stock stop is also disclosed including a track and sliding carriage assembly. A motorized screw mechanism mounted on the track moves a carriage a limited distance along the track. The ends of flippers mounted on the carriage can be extended beyond an edge of the carriage to actually stop the stock. A guide and a device for performing a machine operation on the stock may also be mounted on the track. A computer control unit activates and coordinates the various functions of the stock stop.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: February 20, 1990
    Assignee: Quantum Machine Services, Inc.
    Inventor: Nicholas J. Dobeck
  • Patent number: 4890468
    Abstract: Described is a method for measuring and correcting the plunger adjustment in high-speed stroke presses. The plungers are used for cutting, punching, bending and/or embossing semi-finished goods or the like with high tolerance requirements. The plunger must be readjusted in accordance with the number of strokes per minute and the plunging depth of the plunger is measured. This is carried out using a detector head being provided with a plurality of induction loops, which is guided with the plunger stroke along a permanent magnetic strip, whose longitudinal extension is subdivided into alternating North/South poles. The induced voltage development is scanned through cosine and sine functions of the induction coils for any predetermined travel unit, and the amplitudes of the two functions are measured and evaluated at the turnover point.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: January 2, 1990
    Assignee: S & S Electronike Geratebau Cmbit.
    Inventors: Helmuth Frisch, Johann Hartinger, Alois Weber
  • Patent number: 4833957
    Abstract: Method and apparatus for cutting off selected length panels from an indefinte length strip of fabric with minimum waste, the fabric being comprised as superposed longitudinal and transverse elongate elements, wherein the transverse elements may deviate from strict perpendicularity to the length direction of the strip, e.g., be skewed or bowed. A support defines a path along which the strip of fabric and its longitudinal elements are to extend. A cutter unit is actuable for cutting elements of the strip to cut off a panel from the strip. A transverse moving unit relatively moves the cutter means and strip in a direction transverse to the length of the strip to cut the full width of the strip and thereby separate a panel therefrom. A longitudinal moving unit is actuable for relatively moving the cutter and strip in a direction longitudinal of the strip.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: May 30, 1989
    Assignee: Haworth, Inc.
    Inventor: Bryan L. Lundgren
  • Patent number: 4829864
    Abstract: A process a plate workpiece with high precision at high speed, the plate processing machine comprises a workpiece side surface positioning device (SPD) provided with magnet rollers (MR); a workpiece trimming device (TD) provided with a tool actuating switch (SW); and a workpiece positioning device (PD) provided with an optical sensor (SE). The magnet rollers guide a workpiece forward in magnetic rotatable contact engagement with the side surface of the workpiece. The tool actuating switch is actuated before the workpiece is located at a trimming position for automatic trimming operation. The optical sensor generates a feed speed deceleration signal so that a fed workpiece will not apply shock to the stop member of the positioning device by adjusting the sensor position relative to the stop surface according to the workpiece length to be cut.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: May 16, 1989
    Assignee: Amada Company, Limited
    Inventors: Masayoshi Yanagisawa, Hidekatsu Ikeda
  • Patent number: 4823658
    Abstract: An improved punch assembly (10) for a punch press comprises a main piston (13) driving a punching tool (11) and an auxiliary piston (17) which can be selectively enabled to cooperate with the main pisto1 (13) in a high force, slow speed mode or disabled to allow the main pisto1 (13) to operate alone in a low force high speed mode. The punch assembly (10) also comprises a pressure transducer (41) and position transducer (25) whose respective outputs are connected to a microprocessor controller for the punch assembly. Operation of the punch press is microprocessor controlled to reduce noise and punch cycle time. A stripper assembly (42-48) is also provided and operates in conjunction with the punching tool (11) under microprocessor control to facilitate tool stripping. The stripper assembly (42-48) can also be used for automatic measuring of work sheet thickness.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: April 25, 1989
    Inventor: Andrew I. Spicer