For Disabling Of Continuously Actuated Cutter Patents (Class 83/528)
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Patent number: 11491676Abstract: A cutting machine includes a cutting support for material to be cut, a vertically movable blade bar which bears a blade for cutting the cut material located thereon, a cutting drive for vertically moving the blade bar, a vertically movable clamping bar for pushing down the material to be cut and a pressing drive for vertically moving the clamping bar. The cutting drive and the pressing drive are formed by a single drive which rotates a cam disc to and fro, wherein the blade bar is motion-coupled to the cam disc via a first coupling mechanism which acts on the cam disc eccentrically to the axis of rotation thereof. The clamping bar is motion-coupled to the cam disc via a second coupling mechanism, the one end thereof acting on the outer contour of the cam disc.Type: GrantFiled: March 12, 2022Date of Patent: November 8, 2022Assignee: Krug & Priester GmbH & Co. KGInventor: Holger Jenter
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Patent number: 8839654Abstract: In certain aspects of the invention, punching machines and tools for punching machines are provided that include mechanical devices driven by a driving device of the punching machines and are used to oscillate a tool insert. Such machines and tools can provide an increased frequency of the oscillating movement of the tool insert.Type: GrantFiled: June 20, 2011Date of Patent: September 23, 2014Assignee: TRUMPF Werkzeugmaschinen GmbH + Co. KGInventor: Werner Erlenmaier
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Patent number: 5784938Abstract: Apparatus for cutting a web, including a frame ((70, 186); a crank (188) mounted for rotation on the frame; an upper platen (210); a pair of linear guides (212) for the upper platen; a first crank arm (196) connected between the upper platen and the crank; a lower platen; second and third crank arms (218, 220) connected between the lower platen and the crank; an upper die shoe (262) mounted to the upper platen; a lower die shoe (260) mounted to the lower platen; a pair of linear guides (264) between the die shoes; and a system (287-290, 298-300) for rotating the crank.Type: GrantFiled: November 14, 1996Date of Patent: July 28, 1998Assignee: Eastman Kodak CompanyInventors: Joseph Albert Watkins, Thomas Allen Sisson
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Patent number: 5088370Abstract: A sheet material cutting apparatus in which a pair of blades comprising a movable blade and a fixed blade are arranged, and the movable blade reciprocates to cut sheets. A drive device is mounted on the cutting apparatus, which drive device includes a drive arm to actuate the movable blade and a connecting lever having a split groove for connecting the lever to the drive arm. The movable blade is driven with the aid of the connecting lever and the drive arm of the drive device. The drive of the movable blade is controlled by elasticity of the split groove in the connecting lever. When load exceeding a predetermined amount occurs at the movable blade, the split groove in the connecting lever permits the drive arm to come off.Type: GrantFiled: October 26, 1990Date of Patent: February 18, 1992Assignees: Hitachi Metals Ltd., Yasugi Seimitsu, Ltd.Inventor: Takajiro Kondo
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Patent number: 4879935Abstract: A cutter in which a reciprocating knife is driven by an eccentric mechanism. The knife has a drive portion that flexes laterally in a plane perpendicular to the drive axis of the eccentric mechanism. The eccentric drive axis is offset along the perpendicular plane away from the axis on which the knife reciprocates. The offset of the eccentric drive axis allows the flexible drive portion to be kept straighter during the downstroke than in previous cutters. The increased straightening provides greater columnar strength and reduces deflection and stress of the drive portion during the time the knife is in compression. During the upstroke the knife is bent to a greater degree than in the previous cutters, but during this time the knife is in tension, the tension forces opposing rather than aiding the bending. The offset therefore provides for a longer service life for a blade of equal size or allows a reduction in size and mass of the knife to maintain an equivalent service life.Type: GrantFiled: February 17, 1988Date of Patent: November 14, 1989Assignee: Gerber Scientific, Inc.Inventor: Heinz J. Gerber
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Patent number: 4302995Abstract: In continuously blanking a coiled metal sheet, an operator rapidly detects parts of welded connection of a metal sheet without any manual touch of the metal sheet, removes the parts of welded connection and restarts the apparatus for blanking the metal sheet.Type: GrantFiled: March 21, 1980Date of Patent: December 1, 1981Assignee: Daiwa Can Company, LimitedInventor: Toshio Iino
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Patent number: 4235089Abstract: A continuous metal strip is fed lengthwise along a line of dies intermittently from one end of the line to the other beneath a vertically reciprocating ram carrying a plurality of punches that are slidable vertically in the ram from a projecting operating position to a retracted inoperative position. Each punch is selectively movable automatically from either of those positions to the other independently of the rest of the punches so that different punches can punch a strip at different times while the strip is passing through the press.Type: GrantFiled: May 29, 1979Date of Patent: November 25, 1980Inventor: John C. Vecchi
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Patent number: 4218943Abstract: A revolving cross cutter has two knife drums coupled together, wherein the upper knife drum is mounted for movement towards and away from the lower drum for setting a gap between the two. A sensor-controlled lift mechanism is responsive to forcible lifting of the upper knife drum to lift same away from the lower drum when a jam-up occurs.Type: GrantFiled: August 8, 1978Date of Patent: August 26, 1980Assignee: Jagenberg Werke AktiengesellschaftInventor: Dieter Osburg
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Patent number: 4167131Abstract: Apparatus for producing all over pin hole perforations in the plies for multiwall bags except at the tops and bottoms in the area of interply pasting.Type: GrantFiled: May 18, 1978Date of Patent: September 11, 1979Assignee: Union Camp CorporationInventors: Walter F. Habas, Laurence E. Elliott
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Patent number: 4141266Abstract: Disclosed is a drum type flying shear wherein both or either of blades carried by upper and lower drums, respectively, is caused to describe a part of a non-circular locus whose major axis extends vertically when a blank or hot strip is almost sheared off.Type: GrantFiled: April 26, 1977Date of Patent: February 27, 1979Assignee: Ishikawajima-Harima Jukogyo Kabushiki KaishaInventors: Tsutomu Hara, Bunpei Masuda
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Patent number: 4134334Abstract: In punching, cutting and forming presses and the like, electronic detecting means and/or sensors are provided so as to trip the press and prevent an operation when a mal-function occurs such as a tear in the strip material or a mis-alignment or a mis-feeding of the strip. When the press is equipped with an elbow arrangement to permit adjustments for feed line height while maintaining feed cycle synchronization, then the arrangement must incorporate the automated locking device of the invention, the same automatically unlocking the swing plate simultaneously with the tripping of the press.Type: GrantFiled: September 19, 1977Date of Patent: January 16, 1979Assignee: F. J. Littell Machine CompanyInventor: Kenneth C. Johnson
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Patent number: 4091700Abstract: A press-head comprising a plurality of punches and stripping members, wherein at least one of the punches may be directly connected to the head of the press for the machining operation, while the other punches and the stripping members abut via an elastic means on said head so that, on either side of the active punch in the process of machining, when the head is descending, at least one punch is used as stripping member selectively with a stripping member or a punch used as stripping member.Type: GrantFiled: February 2, 1977Date of Patent: May 30, 1978Inventor: Jean Cloup
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Patent number: 4058041Abstract: The upper and lower shear drums of flying shears having respective shear blades are driven continuously by one motor at a tangential speed synchronized to the translational speed of a stock strip traveling therebetween, and the upper drum is moved between an upper non-shearing position and a lower position for cooperative shearing of the strip with the lower drum by an upper drum displacing mechanism driven by another motor controlled to undergo operational cycles each starting from full stop and ending at full stop during an integral number of revolutions of rotation of either of the drums.Type: GrantFiled: November 29, 1976Date of Patent: November 15, 1977Assignee: Kawasaki Jukogyo Kabushiki KaishaInventor: Kunihiro Ito
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Patent number: 4048891Abstract: A cutter having a reciprocating knife for cutting sheet material has a drive mechanism for converting the rotary motion of a drive member into the reciprocating motion of the knife. The drive mechanism is comprised of a mechanical linkage which causes the forces applied to the upper end of the knife to be directed substantially along the axis of reciprocation and to, therefore, have very small lateral components minimizing wear between the knife guiding surfaces. The drive mechanism basically includes an eccentric drive pin which through a connecting link oscillates a pivotal crossarm. The oscillating movement of the crossarm is in turn imparted to the knife by means of an intermediate link connected between the crossarm and knife.Type: GrantFiled: October 26, 1976Date of Patent: September 20, 1977Assignee: Gerber Garment Technology, Inc.Inventor: David R. Pearl
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Patent number: 3975887Abstract: A packaging device for closing packages, especially food packages, and which is adapted for selective adjustment from a first condition for packaging cold food and a second condition for packaging hot food.Type: GrantFiled: November 13, 1974Date of Patent: August 24, 1976Assignee: Lincoln Manufacturing Company, Inc.Inventor: Joseph D. Clymer, deceased
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Patent number: 3955458Abstract: A cutting apparatus for cutting pattern pieces from layups having a low stack height employs a cutting head having a small reciprocating blade suspended from a carriage which moves over the layup. The drive motors for reciprocating the blade and orienting the blade in a particular cutting direction about a .theta.-axis remain in a stationary position on the cutting head as the blade is oriented and elevated in and out of cutting contact with the layup. A blade sharpener is suspended from the head with the cutting blade and is energized by spinning the blade about the .theta.-axis. Drilling is also accomplished by spinning the blade.Type: GrantFiled: September 17, 1973Date of Patent: May 11, 1976Assignee: Gerber Garment Technology, Inc.Inventor: David Raymond Pearl