With Means To Concurrently Adjust Flying Frequency And Retain Flying Speed Of Tool Patents (Class 83/299)
  • Patent number: 6652434
    Abstract: An improved device for forming box joining flaps in a box splitting machine comprises a supporting frame for supporting a joining flap cutting assembly, the supporting frame being transversely driven with respect to the paperboard material feeding direction, by a worm screw in turn driven by a geared motor unit controlled by a controlling electronic apparatus.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: November 25, 2003
    Inventor: Rinaldo Benzoni
  • Patent number: 6295909
    Abstract: The invention is an apparatus for cutting metal sheet having two rotatable drums, wherein the metal sheet passes between the drums for cutting. Each of the drums has a cutting blade moved into and out of cutting position by an axial actuator rod. The cutting blade includes two sets of rollers bearing against one of a pair of profiled side surfaces of the axial actuator rod.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: October 2, 2001
    Assignee: Kvaerner Technology & Research Limited
    Inventors: Simon Schofield, John Berry, Brian Cooper
  • Patent number: 6272959
    Abstract: Continuously rotating shears (10) to shear to size metallic strip fed continuously at up to around 20 meters per second and having a thickness of from 0.5 mm to 5 mm and a width of from 500 mm up to at least 1500 mm, comprising two blade-bearing drums (11, 111), the drums (11, 111) being supported at the ends by rotary cams (13, 113) governed by shearing command means (15, 16), the drums (11, 111) being positioned between the sides (18) of the frame (17) and being made to rotate by an external source of motion, each drum (11, 111) including an external gear (20, 120) cooperating with an inner toothing (26, 126) of a rotary tube (21, 121) which has an outer toothed wheel (25, 125), the two rotary tubes (21) being connected by the respective outer toothed wheels (25, 125) engaging together.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: August 14, 2001
    Assignee: Danieli & C. Officine Meccaniche Spa
    Inventors: Fausto Drigani, Giampietro Pittari
  • Patent number: 5346195
    Abstract: Apparatus and method for indexing sheets cut from a web including a production line having an unwind at one end and a backstop at the other end, a printer and a rotary knife between the ends, the relation of the knife speed to the web speed being changed cyclically to develop longer and shorter sheets.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: September 13, 1994
    Assignee: Wallace Computer Services, Inc.
    Inventors: Edward W. Heimann, Thomas E. Dash
  • Patent number: 4449433
    Abstract: Herein disclosed is a cutting device for use in a tag printer or the like, in which a tag web being fed is cut, while its cut position is continuously corrected by a rotary blade so that it can cut a variety of price tag webs having different cutting pitches or intervals. The rotary blade is rotated continuously through a differential gear mechanism by a first motor. Its cutting timing is suitably corrected by a second motor which is connected to the differential gear mechanism. Before the cutting operation, moreover, both the price tag web and the rotary blade are positioned at their respective reference positions. During cutting, information as to the positions of the tags on the web and the rotary blade are fed to a processor which adjusts the rotation of the blade for effecting cutting at the proper positions along the web.
    Type: Grant
    Filed: February 23, 1982
    Date of Patent: May 22, 1984
    Assignee: Kabushiki Kaisha Sato
    Inventor: Takehiko Miyamoto
  • Patent number: 4255998
    Abstract: Apparatus for subdividing a running paper web into sections of desired length has a first motor which drives the web at a constant speed and a D.C. motor which drives an orbiting knife at a speed which varies during each angular movement of the knife through 360 degrees. A detector which monitors the speed of the web transmits signals which are utilized to insure that the speed of the knife matches the speed of the web during that stage of each orbital movement when the knife cuts the web. The length of intervals between successive cutting operations is adjustable by connecting the knife with any one of several graduated disks whose graduations are monitored by a second detector which controls the speed of the knife during intervals between successive cutting operations.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: March 17, 1981
    Assignee: Hauni-Werke Korber & Co. KG
    Inventor: Willy Rudszinat
  • Patent number: 4065992
    Abstract: An improved rotary shearing apparatus for cutting a rapidly moving body including rotatable blades which may be inserted into a cutting position and withdrawn therefrom, positioning means for inserting or withdrawing the blades into or out of cutting position, and automatic switches and circuitry capable of causing insertion of the blades and their withdrawal within one rotation of the blades, so that the blades will sever the rapidly moving body with a single clean cut and without disturbing its rapid movement.
    Type: Grant
    Filed: January 13, 1977
    Date of Patent: January 3, 1978
    Assignee: Southwire Company
    Inventors: James W. Peters, Charles Hardesty
  • Patent number: 3983774
    Abstract: An apparatus for producing a continuous succession of pieces or sheets, particularly suitable for infeeding cut pieces of wrapping material to wrapping machines, comprises a track for collating and sending forward the said sheets or cuttings; a plurality of auxiliary tracks leading to the said collation track; means for channelling along the auxiliary tracks, successively, wrapping material from respective reels; and control means for rhythmically cutting such material and for automatically feeding material, end to end, from a fresh reel on exhaustion of an empty reel.
    Type: Grant
    Filed: June 18, 1974
    Date of Patent: October 5, 1976
    Assignee: G. D. Societa per Azioni
    Inventor: Enzo Seragnoli