Patents Assigned to Firma Friedrich Kocks
  • Patent number: 4215855
    Abstract: A cooling bed for cooling and straightening rods or bars which are delivered hot from a rolling mill as side-by-side conveyor chains provided with projections between which pockets for the articles are defined. Reversal sprocket wheels at the infeed end are interconnected so that the pockets at the infeed end remain accurately in alignment, notwithstanding chain wear and differential expansion under the heat conditions. Reversal sprocket wheels at the discharge end are not drivingly interconnected, at least under normal operating conditions. Individual hydraulic drive motors drive the reversal wheels as shown or separate drive wheels which cooperate with the lower runs of the conveyor chains to keep the upper runs taut individually. The individually driven sprocket wheels are mounted with angular lost motion on a connection shaft to avoid one of the motors being overloaded under exceptional circumstances.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: August 5, 1980
    Assignee: Firma Friedrich Kocks GmbH & Company
    Inventor: Theodor Zacharias
  • Patent number: 4068516
    Abstract: A method and apparatus are provided for handling bar-shaped material, such as tubes, beyond a plant for manufacturing and/or machining same, comprising the steps of sub-dividing the material moving out of the plant by means of a severing device, sorting the cut lengths of material into at least two groups and feeding said sorted lengths to at least two cooling beds, conveying the cut lengths from the first cooling bed and subjecting them to substantially automatic continuous after-processing and conveying the cut lengths from the second cooling bed, after intermediate storage subjecting them at the second cooling bed to at least partially manual individual after-processing.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: January 17, 1978
    Assignee: Firma Friedrich Kocks
    Inventor: Rudolf Wonisch
  • Patent number: 4022049
    Abstract: An improved rolling mill capable of both stretch reducing tubes having relatively small external diameters and of reducing tubes having relatively large external diameters is provided having a plurality of successive roller stands some stands having small roll diameters and other stands having large roll diameters, the said other stands having large roll diameters being arranged to follow, in the direction of rolling, the said some stands having small roll diameters so that said other stands are at the exit end of the rolling mill.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: May 10, 1977
    Assignee: Firma Friedrich Kocks
    Inventors: Hans Dieter Gerhards, Hermann Moltner
  • Patent number: 4020667
    Abstract: A multistand rolling mill for stretch reducing tubes is provided in which the first stands of a plurality of successive stands are operated to build up tension and at least one of said stands is provided with means for varying the roll speed to provide a desired speed step in those stands designed to build up tension.
    Type: Grant
    Filed: October 23, 1975
    Date of Patent: May 3, 1977
    Assignee: Firma Friedrich Kocks
    Inventors: Werner Demny, Hermann Moeltner
  • Patent number: 4000637
    Abstract: A stretch-reducing rolling mill is provided for selectively producing tubes of circular or angular configuration, such as a square, is provided in the form of a plurality of driven roll stands arranged in two groups, one at the entrance end being equipped with three roller stands and a second at the rear or exit end being arranged to use either three or four roller stands optionally, said first group of stands being driven by a common drive train separate and independent of the drive for the second group.
    Type: Grant
    Filed: April 16, 1976
    Date of Patent: January 4, 1977
    Assignee: Firma Friedrich Kocks
    Inventors: Hans-Dieter Gerhards, Hermann Moltner
  • Patent number: 3996781
    Abstract: A rolling mill is provided for rolling wire, light sections and tubular products having a fixed rolling axis and a plurality of roll stands arranged directly one behind the other and each of which has two driven work rolls extending parallel to one another and transversely of the rolling direction, said work rolls of each stand defining at least two sizing passes only one of which is located on the rolling axis at one time while the other sizing passes of the stand are interchangeably located away from the rolling axis and act as stand-by passes.
    Type: Grant
    Filed: December 3, 1975
    Date of Patent: December 14, 1976
    Assignee: Firma Friedrich Kocks
    Inventor: Norbert Nuckel
  • Patent number: 3952569
    Abstract: A method and apparatus are provided for winding long rod-like material, such as tubes, into coils by continuously coiling the material and depositing it into a rotating coiler adapted to collect a selected coil of material and then eject it into a delivery receptacle rotating in substantial synchronism with the coiler, stopping the delivery receptacle for removal of the ejected coil and then reaccelerating the delivery receptacle to substantially the speed of the coiler for receipt of the next completed coil.
    Type: Grant
    Filed: September 11, 1974
    Date of Patent: April 27, 1976
    Assignee: Firma Friedrich Kocks
    Inventor: Gunter Lauterjung
  • Patent number: 3952570
    Abstract: A sizing mill is provided for reducing tubes having a number of roll stands arranged one behind the other and in which the sizing pass of at least the first stand is so out of round that the first sizing pass can effect tube reduction over the whole range of external diameters of tubes to be rolled in any given rolling program.
    Type: Grant
    Filed: June 26, 1974
    Date of Patent: April 27, 1976
    Assignee: Firma Friedrich Kocks
    Inventors: Werner Demny, Hermann Moeltner