Caused By Work-holding, Shape-imparting Form (e.g., For "spinning") Patents (Class 72/82)
With means causing cooperating presser member to traverse form surface (Class 72/83)
  • Device for spinning of metal objects
    Patent number: 4008593
    Abstract: This device relates to a device or tool for pressing sheet metal toward and to engage a spinning or rotating cylindrical-like mold to forceably deform the metal to assume the shape of said mold. More particularly, it relates to an improved device having a freely rollable or universal ball captively held in a ball bearing racer and thereby effect a substantially frictionless inward movement of said sheet metal against said pressure deforming universally rollable ball.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: February 22, 1977
    Inventor: Richard L. Ciccarello
  • Method of producing V-belt pulleys and spinning lathe for carrying out such method
    Patent number: 3962896
    Abstract: Spinning method for producing V-belt pulleys comprising the steps of preforming the grooves, decreasing the width of the grooves by compression and finally shaping the grooves. The spinning lathe comprises an eccentrically mounted and axially movable inner roller forming a back up roller for the shaping roller.
    Type: Grant
    Filed: November 19, 1974
    Date of Patent: June 15, 1976
    Assignee: Leifeld & Co.
    Inventor: Joachim H. Bichel
  • Spin lathe
    Patent number: 3956914
    Abstract: A spin lathe embodying novel means to deliver pressurized fluid to means controlling operation of the work holding chuck, and a manually adjustable hydraulically actuated switch element for limiting travel of the work piece forging tool for "necking" operations. Also embodied in the structure is a novel turntable mounting for the forging tool and the method and means to blow out the hole in the partially closed end of the work piece prior to final closing of said end.
    Type: Grant
    Filed: November 14, 1974
    Date of Patent: May 18, 1976
    Assignee: The Marison Company
    Inventor: Joseph Prochaska