Cutting Tool Operative In Opposite Directions Of Travel Patents (Class 83/578)
-
Patent number: 4179959Abstract: Method and apparatus for cutting extruded split tile columns in a quick, efficient manner that reduces the possibility of damage and effectively doubles cutting speed. The apparatus cuts the moving split tile column as it moves away from the extruder and includes oppositely mounted, freely movable cutting discs which roll through and cut that split tile column when moved vertically therethrough. Cutting occurs on both up and down strokes with the cutting apparatus being moved relative to the moving column to a predetermined amount to a new cutting position after each stroke. The discs can be mounted in the same plane, arranged 90.degree. to the column's moving direction positioned so as to just touch each other or the discs can be in two separate and slightly offset planes so that the discs can overlap.Type: GrantFiled: October 31, 1977Date of Patent: December 25, 1979Assignee: Lingl CorporationInventor: Hans Lingl, Jr.
-
Patent number: 4164160Abstract: An apparatus for cutting a cellular plastic web emerging from a web forming machine into a plurality of predetermined lengths is described. A cutting device including a plurality of mutually spaced filaments is provided on a movable carriage slidably supported on a support stand. The filaments extend transversely of the carriage and the direction of the web emerging from the forming machine. The carriage is mounted on the stand for reciprocating sliding movement. In one direction of traverse, the carriage moves in synchronism and in the same direction as the web and simultaneously divides the web into separate lengths by means of transverse cutting devices. The filaments move alternately toward and away from the carriage to cut the web during successive synchronized movements of the carriage and web. Further, the filaments may be horizontally moved to cut profiles other than straight, vertical sections in the separate lengths of the web.Type: GrantFiled: March 24, 1978Date of Patent: August 14, 1979Assignee: Gullfiber ABInventors: Jan-Olof Johansson, Heikki Korpela, Karel Spacek
-
Patent number: 4117754Abstract: An apparatus for cutting a cellular plastic web emerging from a web forming machine into a plurality of predetermined lengths is described. A cutting device including a plurality of spaced filaments is provided on a movable carriage slidably supported on a support stand. The filaments extend transversely of the carriage and the direction of the web emerging from the forming machine. The carriage is mounted on the stand for reciprocating sliding movement and in one direction of traverse moves in synchronism and in the same direction as the web. The filaments move alternately toward and away from the carriage to cut the web during successive synchronized movements of the carriage and web.Type: GrantFiled: December 28, 1976Date of Patent: October 3, 1978Assignee: Gullfiber ABInventors: Jan-Olof Johansson, Heikki Korpela, Karel Spacek
-
Patent number: 4108029Abstract: A cut-off die set is disclosed for use in a cut-off apparatus of the type in which continuous length of tubing or other elongated stock emanating from a tubing mill is severed into lengths as the tubing emanates from the tubing mill by means of a cut-off die set mounted within the cut-off apparatus. The cut-off die set is adapted to be clamped to the tube so as to move therewith during severing of the tubing by a ram operated cut-off blade descending vertically to shear the tubing. The present disclosure involves a improvement to a notching mechanism often included in such cut-off apparatus in which a horizontally reciprocated blade notches the upper portion of the tubing just prior to severing by the main cut-off blade so as to eliminate dimples in the severed tube cross section.Type: GrantFiled: May 23, 1977Date of Patent: August 22, 1978Assignee: Alpha Industries, Inc.Inventor: Alexander Borzym
-
Patent number: 4048885Abstract: A method and apparatus for cutting a continuously moving sheet material in which a nozzle for directing a jet stream of fluid under high pressure is driven in predetermined directions along a closed track consisting of a pair of straight paths intersecting each other symmetrically at a predetermined angle relative to the cutting direction of the sheet material and a pair of curved paths connecting the associated ends of the straight paths. In the method and apparatus, the moving velocity of the jet nozzle is controlled as a function of the feeding velocity of the sheet material and the desired length of sheets cut from the sheet material, and the energy of the fluid under high pressure directed from the moving jet nozzle toward the sheet material is utilized to cut the sheet material into the sheets of desired length.Type: GrantFiled: March 15, 1976Date of Patent: September 20, 1977Assignee: Ichiro MiyakitaInventors: Hiroshi Miyakita, Ichiro Miyakita
-
Patent number: 3996037Abstract: The stream of molten glass which is discharged from the outlet spout of a molten glass feeder is severed to form discrete gobs of glass for delivery to the glassware forming machine. A pair of double edged shear blades move in opposite directions linearly across the stream to cut not only during an initial "pass through" stroke, but also to cut during their return stroke.Type: GrantFiled: June 25, 1975Date of Patent: December 7, 1976Assignee: Emhart Industries, Inc.Inventor: Frederick Joseph Wythe
-
Patent number: 3987521Abstract: Apparatus for manufacturing expanded sheet stock is disclosed. The apparatus includes a stationary knife having a cutting edge defining one edge of a strip feed slot. While the strip is fed through the slot, a movable knife passes across the slot to form half-diamond-shaped openings in the strip with each stroke. The movable knife has a cutting edge which is defined by a plurality of adjacent obelisk teeth and those teeth form the half-diamond openings during each stroke. The movable cutting knife is driven relative to the stationary knife in planar alignment therewith and in simple harmonic motion while the strip is fed through the slot so that any point on the cutting edge of an obelisk tooth sequentially shears the strip in a recurring sequence to provide half-tooth spacing between successive cuts. Such spacing results in a characteristic diamond-shaped opening in the expanded metal.Type: GrantFiled: December 17, 1974Date of Patent: October 26, 1976Assignee: Gould Inc.Inventor: David B. Parkinson
-
Patent number: 3977286Abstract: An apparatus for cutting sheet material with large surface area, particularly photo-printing paper in strips, has a mobile head which is drawn along a guide path in the cutting direction over a processing table for the sheet by means of a traction device driven by an electric motor. The cutting head consists of a flat deflector located slightly above the processing table, a cutter extending into a groove which forms the guide path in the processing table, and a coupling element for connection to the traction device. Significantly, the deflector simultaneously deflects a further sheet of material while cutting the desired sheet of material.Type: GrantFiled: April 16, 1975Date of Patent: August 31, 1976Assignee: Meteor-Siegen Apparatebau Paul Schmeck GmbHInventor: Johannes Werner
-
Patent number: 3977280Abstract: Photographic transparencies are successively severed from the leading end of film strip by means of an oscillatory knife and simultaneously guided by surfaces on the knife to a mounting station at which the transparencies are inserted in slide frames.Type: GrantFiled: September 25, 1974Date of Patent: August 31, 1976Assignee: Geimuplast Peter Mundt KGInventors: Peter Hans Ernst Mundt, Otfried Urban, Arnold Neuhold
-
Patent number: 3972254Abstract: The present invention is concerned with a novel and improved cutting mechanism for slicing a flexible sheet that is being advanced endwise continuously to the cutting position. It is particularly advantageous in the slicing of textile materials that are formed continuously as in a carpet making machine, such as those produced by a non-woven bonding procedure described in U.S. Pat. No. 3,657,052.The present invention comprises an endless belt stretched about two sprockets. The cutting elements are secured to the belt at intervals therealong. Supporting guide means are positioned beneath the upper course or stretch of the belt to assure that the cutting edges of the cutting elements carried thereby follow a path lying in the plane of cutting extending transversely of the width of the sheet being sliced. Means is provided to drive the belt alternately in both directions so that these knives can be reciprocated in the plane of cutting.Type: GrantFiled: January 20, 1975Date of Patent: August 3, 1976Assignee: Kemos IncorporatedInventors: Edward George Dillinger, Wallace Jared Camp
-
Patent number: 3969054Abstract: A length sensing photocell has its output connected to the input of a Scht trigger control circuit which alternately actuates solenoid pneumatic valves which in turn cause a cylinder operated single strand shuttle cutter to repetitively cut extruded lengths of grain propellants to a substantially uniform length independent of their rate of extrusion.Type: GrantFiled: July 11, 1975Date of Patent: July 13, 1976Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Asa E. Roane
-
Patent number: 3965550Abstract: Apparatus for manufacturing expanded sheet stock is disclosed. The apparatus includes a stationary knife having a cutting edge defining one edge of a strip feed slot. While the strip is fed through the slot, a movable knife passes across the slot to form half-diamond-shaped openings in the strip with each stroke. The movable knife has a cutting edge which is defined by a plurality of adjacent obelisk teeth and those teeth form the half-diamond openings during each stroke. The movable cutting knife is driven relative to the stationary knife in planar alignment therewith and in sample harmonic motion while the strip is fed through the slot so that any point on the cutting edge of an obelisk tooth sequentially shears the strip in a recurring sequence to provide half-tooth spacing between successive cuts. Such spacing results in a characteristic diamond-shaped opening in the expanded metal.Type: GrantFiled: December 17, 1974Date of Patent: June 29, 1976Assignee: Gould Inc.Inventor: David B. Parkinson
-
Patent number: 3933067Abstract: A cutter device for cutting thermoplastic material may be truck mounted, and includes lifting means to present articles of thermoplastic material to a portion of the device which receives the articles and hydraulically operates to transfer the article to the cylindrical portion of the device along which the article is pushed toward one end of the device where a hydraulically operated knife can selectively cut off portions of the thermoplastic material as desired. The device also includes conveyor means to transfer the cut off portions of thermoplastic materials away from the cutter device to an area where they are intended to be used. The conveyor means are hydraulically operable from the same source of hydraulic pressure as operates the other components of this device.Type: GrantFiled: September 24, 1974Date of Patent: January 20, 1976Inventor: Julius Clark