Cyclical Unequal Movements Patents (Class 226/123)
  • Patent number: 6454150
    Abstract: A method and device for improving the throughput of a continuous web cutter, which is operated in move-and-pause cycles to allow the web to be cut into cut sheets. To avoid tear and web breakage, the web is fed at a low cycle rate at the starting stage. The cycle rate is progressively increased. When a feed rhythm is developed at the higher cycle rate, a constant cycle rate is maintained for the rest of the web operation.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: September 24, 2002
    Assignee: Pitney Bowes Inc.
    Inventor: Russell W. Holbrook
  • Patent number: 5086964
    Abstract: A web drive cyclically moves a web a fixed distance. First and second spaced draw roll units include separate servo motors. Separate programmed controllers are connected to energize the servo drives with a time motion profile including acceleration and deceleration periods to move the web in a fixed time period. The one programmed controller generates the profile program each cycle during the execution of program to move the web the next cycle. The generated program is down-loaded to the second controller to duplicate energization of the second servo motor. A dancer unit between the drive rolls maintains the tension with a change in web length and includes a movable roll unit. A potentiometer sensor is coupled to the roll unit and establishes an output signal voltage proportional to the direction of the web change and to the length thereof.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: February 11, 1992
    Assignee: Amplas, Inc.
    Inventor: Giles R. Blaser
  • Patent number: 4998657
    Abstract: An apparatus for feeding a material web includes a four-winged driving reel for intermittently feeding the material web in the forward direction. The four wings include two longer wings and two shorter wings. The distance between the free ends of adjacent wings is substantially equal to the distance between crease lines on the material web.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: March 12, 1991
    Assignee: AB Tetra Pak
    Inventors: George Ramsay, Arne Klint
  • Patent number: 4389008
    Abstract: Apparatus for incremental feeding of a paper web from an arborless supply roll over a transverse dancer bar resiliently supported at each end with the respective supports having different and variable spring rates to effect uneven pulling of the web during feeding and thus jogging of the supply roll. This action maintains a tight wrap of the outer layers of web on the roll and aids in maintaining web alignment during feeding.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: June 21, 1983
    Assignee: International Business Machines Corporation
    Inventors: Robert E. Boyanowski, Floyd A. Gregory, Stanley E. Nemier
  • Patent number: 4362259
    Abstract: Apparatus for stepwise transport of exposed and developed photographic films through a copying machine so as to place selected film frames, namely those film frames which are to be imaged onto photographic paper and are designated by holes or other types of indices, into register with the copying station has two photoelectronic detectors the first of which transmits signals to the forward input and the second of which transmits signals to the reverse input of a forward and reverse counter in a circuit which regulates the speed of the film transporting motor. The second detector is located downstream of the first detector and both detectors transmit signals on detection of indices denoting the film frames to be copied.
    Type: Grant
    Filed: February 19, 1981
    Date of Patent: December 7, 1982
    Assignee: AGFA-Gevaert Aktiengesellschaft
    Inventors: Otto Stemme, Eduard Wagensonner, Bernhard von Fischern
  • Patent number: 4157683
    Abstract: A method of printing a multicolor design on a long, continuous web or carpet in a machine having uniformly spaced printing stations and apparatus for longitudinally advancing the carpet in steps between printing operations. Two or more stations adjacent each other are used for each color to appear in the design being printed. The carpet movement increment distances are selected as a function of total number of colors n, total number of stations P and the number of stations per color N to increase production. In the preferred embodiment a repeated sequence of distances D.sub.1 and D.sub.2 are selected so that D.sub.1 +D.sub.2 =2N, D.sub.1 and D.sub.2 each being odd integral numbers of pattern repeat lengths.
    Type: Grant
    Filed: September 3, 1975
    Date of Patent: June 12, 1979
    Assignee: WWG Industries, Inc.
    Inventor: Alan H. Norris