With Backing Roll Patents (Class 100/160)
  • Patent number: 4372247
    Abstract: Fusing apparatus for fixing toner material to a copy sheet. The apparatus comprises a pair of parallel, cold pressure fixing rollers, each of said rollers including a cylindrical metal tube open at both ends thereof, a cured elastomer occupying the volume enclosed by and bonded to said cylindrical tube, and a shaft extending through and bonded to said elastomer. The shaft is concentric with the tube. The apparatus also comprises means for applying a force to one of the two roller shafts to thereby apply a uniform pressure to the nip of the cold pressure fixing rollers.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: February 8, 1983
    Assignee: Pitney Bowes Inc.
    Inventor: Richard A. Calabrese
  • Patent number: 4327634
    Abstract: The object of the invention is an apparatus for the preliminary or final assembly of sheets of glass and/or plastic material for forming laminated glazings.The apparatus according to the invention comprises a lower pinching means following a curvature transversal to the bottom side of the rigid support of the glazing, a flexible, cylindrical pressure roller placed above the lower pinching means, means bearing on the pressure roller to give it the desired curvature, and means providing a rotational drive of the pressure roller and/or the lower pinching means.The invention is applicable to the manufacture of laminated glazings, particularly for automobile glazings or flat glass used in construction.
    Type: Grant
    Filed: February 21, 1980
    Date of Patent: May 4, 1982
    Assignee: Saint-Gobain Vitrage
    Inventors: Daniel Colmon, Francis Triffaux
  • Patent number: 4318761
    Abstract: A plastics foam-forming mixture (31), e.g. a polyurethane or polyisocyanurate foam mix, deposited from one or more static dispensers (19) is metered through two spaced opposed members (14 and 18) forming between them a metering gap. At least one of the members having a plurality of faces of different profile and being rotatable to present to the other member a selected face appropriate to the thickness of foam board to be produced. Reduces "crowning" of foam boards while permitting foam boards of different thicknesses to be made without having to replace metering bars.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: March 9, 1982
    Assignee: Imperial Chemical Industries Limited
    Inventors: Edward Dockray, Victor F. Hodgson
  • Patent number: 4310361
    Abstract: A sugar cane mill facility for the extraction with imbibition of sugar from sugar cane.This mill is characterized by the fact that it includes a fourth roller placed in front of the upper roller, against which it presses and, above the inlet roller and mounted on a mobile support, means acting upon the said support in order to flexibly push the fourth roller towards the upper roller, adjustable stops hindering these two rollers from coming together, and a trash plate placed between the fourth roller and the inlet roller integral with the said mobile support. The juices extracted by pressure between the upper roller and the fourth roller can be recycled to the bagasse layer feeding the mill, either with the juices which have passed through this layer, or with the juices extracted by pressure between the upper roller and the inlet and outlet rollers.
    Type: Grant
    Filed: December 11, 1980
    Date of Patent: January 12, 1982
    Assignee: Fives-Cail Babcock
    Inventor: Jean-Pierre Georget
  • Patent number: 4235166
    Abstract: Apparatus for fixing a toner image on a toner image supporting member in an electrophotographic copying machine is disclosed. The fixing apparatus comprises three rotary rollers which are in contact with each other under the action of pressing means. One of the three rollers has a smaller diameter than the remaining two rollers. In order to press the toner image supporting member uniformly between the two rollers with which the supporting member comes into contact, the two rollers are disposed in such a manner that the roller axes cross one another.
    Type: Grant
    Filed: September 12, 1978
    Date of Patent: November 25, 1980
    Assignee: Canon Kabushiki Kaisha
    Inventor: Haruo Tsunoi
  • Patent number: 4192229
    Abstract: Apparatus for fixing toner image on a toner image supporting member in electrophotographic copying machine is disclosed. The fixing apparatus includes three rotary rollers which are in contact with each other under the action of pressing means. One of the three rollers has a smaller diameter than the other two rollers. Two rollers with which the toner image supporting member comes into contact are disposed in such a manner that the axes of the two rollers intersect each other and the portion at which the two rollers contact each other or are closest to each other forms a straight line relative to the direction of roller axis. According to one embodiment of the invention, the remaining one roller with which the supporting member does not contact, is formed as a crown roller, that is, a roller which has its largest diameter at the middle portion of the roller.
    Type: Grant
    Filed: September 28, 1978
    Date of Patent: March 11, 1980
    Assignee: Canon Kabushiki Kaisha
    Inventors: Haruo Tsunoi, Teruo Morikawa, Katsuhiko Yamada, Kenji Ohkawara, Atsushi Kubota
  • Patent number: 4142386
    Abstract: A throughpass leather working machine, especially an embossing and ironing machine for leather which comprises at least one substantially tubular-shaped, thick-walled leather working element in the form of an embossing and/or ironing element which at both ends at the outer surface thereof and externally of the embossing or ironing zone has substantially cylindrical bearing or contact surfaces at which there are exerted by means of rollers or open rolling-contact bearings embossing or ironing forces. These forces are transmitted by means of the embossing or ironing zone to the surface of the leather piece which is being processed. The leather pieces are supported and transported by elastic support means and at least one counter-pressure roll.
    Type: Grant
    Filed: November 18, 1977
    Date of Patent: March 6, 1979
    Inventor: Jiri Dokoupil
  • Patent number: 4128053
    Abstract: A supercalender wherein a stack of metal rolls form an upright series of metal rolls defining hard nips between themselves. The upright series of metal rolls include top and bottom rolls and between the latter at least a pair of intermediate rolls one of which is an upper intermediate roll situated next to the top roll and the other of which is a lower intermediate roll situated next to the bottom roll. At least one pair of filled rolls are situated next to at least one of said intermediate rolls to define therewith a pair of soft nips.
    Type: Grant
    Filed: June 16, 1977
    Date of Patent: December 5, 1978
    Assignee: Valmet Oy
    Inventor: Matti Kankaanpaa
  • Patent number: 4116760
    Abstract: A method of removing liquid from a slurry of solid material in liquid in which the liquid is squeezed from the slurry by passing the slurry through a roll nip and, simultaneously with the squeezing and passing, the liquid squeezed from the slurry is blocked from flowing through the roll nip.Apparatus for removing liquid from a slurry of solid material in a liquid includes a plurality of liquid guides, disposed in a spaced-apart parallel relationship, being inclined away from and opening adjacent the roll nip.
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: September 26, 1978
    Assignee: General Recycling Corporation
    Inventor: Richard B. Kennedy
  • Patent number: 4111746
    Abstract: A rolling device or roller mill having a controlled-deflection roll possessing a stationary roll support or carrier mounted in a frame of the rolling mill. A tubular roll shell is rotatable about the roll support and bears thereon by means of at least one bearing or support element. The roll shell is provided at its ends with guide members which are rotatably mounted in the roll shell and which are guided on the roll support in the direction of the pressing or disengaging movement of the roll shell. The controlled-deflection roll is equipped with a scraper device having a scraper blade which, during operation, is in contact with the outer surface of the roll shell, the scraper device being rotatably mounted on the frame. At least one of the guide members has a disengaging or lift-off element which, when the roll shell performs a disengaging or lift-off movement from the operative position, abuts a part of the blade support or carrier and raises the blade off the surface of the roll shell.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: September 5, 1978
    Assignee: Escher Wyss Limited
    Inventor: Mario Biondetti
  • Patent number: 4111745
    Abstract: Web decurling apparatus wherein a paper web is urged against a deformable roller by a decurling rod which extends parallel to the roller is provided with a series of improved bearing assemblies carried in spaced relation by a back-up beam which overlies the decurling rod to limit deflection thereof as decurling pressure is applied. Each bearing assembly is adjustable relative to the decurling rod and includes a mounting block fastened to the back-up beam, a pair of spindles each having an eccentric on one end journalled in the mounting block, and a roller bearing mounted on the eccentric end of each spindle. The other end of the spindle protrudes from the bearing block and is engageable by a tool to enable a technician to rotate the spindle about its axis and hence to rotate the bearing into proper engagement with the decurling rod. A set screw carried by the bearing block releasably engages the spindle for locking the bearing in a selected adjusted position.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: September 5, 1978
    Assignee: The Moore & White Company
    Inventor: John L. Manfredi
  • Patent number: 4018149
    Abstract: A press for dry fodder comprising a cylindrical matrix which is provided with a radially extending flange extending at right angles to the rotational axis of said matrix and an annular circumferential stepped portion on said matrix in which rotates at least one press wheel. Axial cutouts connecting said stepped portion to a side of said matrix are provided for pressing and discharging said material.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: April 19, 1977
    Inventor: Bjorn Adler Zeuthen Bruun