Cylinder Work Support Patents (Class 69/42)
  • Patent number: 4987752
    Abstract: A hide skiving machine adapted to skive a hide in one pass constituted by a frame which supports, at its sides, a rotatable support cylinder upon which the hide is fed and is held in place by a slidable presser roller. A lower oscillating frame having a rotating lower blade cylinder and an upper oscillating frame having a rotating upper blade cylinder are furthermore provided which skive the hide. The oscillating frames are independently movable between a raised non-working position and a lowered working position by respective actuators. Each blade cylinder is provided with a sharpening assembly which maintains the blade sharpness for more effective skiving. An adjustable, flexible front shield and a feed table are furthermore provided. The oscillating frames which support the blade cylinders are also provided with play recovery elements which help maintain the position of the blade cylinders with respect to the hide.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: January 29, 1991
    Assignee: S.p.A. Luigi Rizzi & C.
    Inventors: Franco Bertucci, Romano Burani, Raffaele Facchi
  • Patent number: 4542634
    Abstract: In a staking machine for staking leather, skins or furs a rotatable work roll carrying staking blades or grindstones is arranged against a flexible pressing device with an adjustable gap. A workpiece is pulled through the gap by a rotary feed roll and a rotary clamping roll also arranged at an adjustable clearance. The workpiece is fed through the gap between the feed roll and the clamping roll when the feed roll cooperates with the clamping roll.
    Type: Grant
    Filed: January 20, 1983
    Date of Patent: September 24, 1985
    Inventor: Karl Voit
  • Patent number: 4381655
    Abstract: A tanning machine wherein a pressure roller urges one side of a hide or skin against the blades of an elongated rotary severing device has a grinding unit which treats the blades of the severing device and is mounted in the frame of the tanning machine. The grinding unit has elongated straight first guide members which are fixedly mounted in the frame and extend in parallelism with the axis of the severing device, a first carriage which is reciprocable along the first guide members by a motor through the medium of an endless chain and carries second guide members extending radially of the severing device, a second carriage which is reciprocable along the second guide members and supports a grinding tool, and a cam and follower arrangement which moves the second carriage along the second guide members in response to reciprocation of the first carriage along the first guide members.
    Type: Grant
    Filed: December 3, 1980
    Date of Patent: May 3, 1983
    Assignee: Maschinenfabrik Moenus AG
    Inventor: Willi Trutschel
  • Patent number: 4280345
    Abstract: This invention relates to primary processing of animal hides and more particularly to methods for cleansing cattle hides and to apparatus for carrying out same. According to the proposed method, washing, soaking and removal of dung from the surface of the hides are carried out simultaneously and continuously under copious irrigation of the moving hides with water and the hides are then clamped in position essentially along the axis of movement, while the removal of dung is effected by carding their hair covering and subsequent removal of surface moisture.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: July 28, 1981
    Inventors: Natan M. Gimelfarb, Fedor T. Lugovnev, Nikolai E. Misjura
  • Patent number: 4081977
    Abstract: De-fleshing apparatus comprises two fleshing machines arranged face-to-face, with a transfer conveyor between the machines. The conveyor is reversibly driven, and is arranged so that by movement in one direction a hide is transported from a first of the two machines to the second machine, half the hide having been de-fleshed in the first machine, and by movement in the opposite direction the hide is transported from the second machine as the other half of the hide is de-fleshed in the second movement. Each machine comprises a feed roller arranged to assist in drawing the hide through the machine while a cutter operates to de-flesh the hide, and the conveyor comprises an endless band which is mounted on the two feed rollers and driven thereby along its length in each direction.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: April 4, 1978
    Assignee: USM Corporation
    Inventors: Alexander Schmidt, Sr., Walter Schmidt, Alexander Schmidt, Jr.
  • Patent number: 4040278
    Abstract: A chain conveyor advances brine soaked hides hanging from hooks on the conveyor to a wringer consisting of a pair of vertically oriented pressure loaded power-driven rolls, and draws the hides through the wringer with the lengthwise dimension of the hides substantially horizontal.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: August 9, 1977
    Assignee: Northern Conveyor & Manufacturing Corporation
    Inventors: John E. Zimmerman, Richard M. Reis, Sr.
  • Patent number: 4037437
    Abstract: A machine for the continuous processing of hides and skins comprising a first and a second processing unit mounted on a frame. The first unit includes rollers, a hide gripping arrangement, and means for driving same; the second unit being similarly equipped; the second unit being capable of processing that portion of the hide not processed by the first unit. The second unit grips the hide before processing by the first unit is commenced.
    Type: Grant
    Filed: May 26, 1976
    Date of Patent: July 26, 1977
    Assignee: USM Corporation
    Inventors: Gerhard Richter, Peter Poppel