Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7918159 | Calender The invention concerns a calender which comprises a vertical stack of interlinked rollers driven individually by regulated electric motors. The regulation process acts on the distribution of the delivered power to the individual rollers such that the forces acting o... | 04/05/2011 |
| 7413632 | Method for calendering a fibrous web and a calender A calender includes at least two roll stacks which each have at least three rolls, and in each of which the web path of a fibrous web meanders between each roll pair of the stack. In order to produce a selectable fibrous web grade, the web is passed between each rol... | 08/19/2008 |
| 7357072 | Calender A calender comprises a vertical stack of interlinked rollers driven individually by regulated electric motors. The regulation process acts on the distribution of the delivered power to the individual rollers such that the forces acting on the rollers in the horizont... | 04/15/2008 |
| 7340997 | Press comprising a correction of a press band course A press for pressing a material to form a structural component comprises at least one revolving press band and a control for controlling the course of the press band. The control is preferably carried out via rotating rods that engage the press band and that can be ... | 03/11/2008 |
| 7325489 | Process for controlling torque in a calendering system A method for controlling a calendering system having a first roll and a second roll is disclosed. The first roll has a first roll torque controller and a first roll speed controller. An exemplary method comprises the steps of: (a) setting said first roll at a desire... | 02/05/2008 |
| 7311039 | Method and arrangement for preventing vibrations in a multi-nip calender or calender array Vibration is prevented in a multi-nip calender (1) or an array of multi-nip calendars. Each calender has a lower roll (3; 40), an upper roll (3; 30) and two or more intermediate rolls. A fiber web is conveyed through the closed roll nips of the ... | 12/25/2007 |
| 7287974 | Calender arrangement A calender arrangement for calendering a material web, in particular a paper web, having a shoe roll and a mating roll, between which an extended nip is formed, through which the material web can be guided. The shoe roll includes a revolving shell, which is fixed to... | 10/30/2007 |
| 7274903 | Integrated fuser unit and drive system for use in an electrophotographic imaging process An integrated fuser unit has a drive system with a motor and a drive train mounted in the fuser unit frame. A swing arm assembly engages and disengages the hot roll from the drive train. ... | 09/25/2007 |
| 7255000 | Method and an arrangement for controlling position and/or force of an elongated rolling device In paper and board machines the position of a rolling device relative to another rolling device and/or the force exerted by the rolling device on the other rolling device or any variable acting on these is measured, and the value of the measured variable is compared... | 08/14/2007 |
| 7222566 | Rotary baler A rotary baler having a variable size baling chamber for the formation of a cylindrical bale. The baler is configured to measure diameter and the shape of the bale. To measure the shape of the bale, the baler is provided with at least one sensor arranged to generate... | 05/29/2007 |
| 7185537 | Nip and loading analysis system A nip characterization system which has as inputs the pressure applied to the nip by the hydraulic loading devices, and loads applied at the end bearings and/or the loads applied to the roll support beam, and in addition directly measures nip load, has more than suf... | 03/06/2007 |
| 7162953 | Roll arrangement Roll arrangement that includes a deflection controlled roll and a counter roll. The counter roll and the deflection controlled roll are arranged to form at least one nip. The deflection controlled roll includes a rotating roll jacket, a carrier axially passing throu... | 01/16/2007 |
| 7134388 | Calender for a sheet of paper A calender for a sheet of paper comprising a metal roll which is rotated by a first driving unit. The calender further comprises a rotatable cylindrical jacket, a pressurizing shoe, and a plurality of support members. The cylindrical jacket is disposed opposite the ... | 11/14/2006 |
| 7096779 | Calender arrangement A vertical calender arrangement comprises a controllable-deflection top roll, a controllable-deflection bottom roll and intermediate rolls arranged between top and bottom rolls. The top roll and the bottom roll are each provided with a power drive. ... | 08/29/2006 |
| 7060161 | Method for restraining deformation of nip roll There is provided a method for restraining deformation of a nip roll, in which polygonal deformation of nip rolls that are in contact with each other is restrained, so that vibration produced by the deformation is decreased. The diameter ratio between the fir... | 06/13/2006 |
| 7040225 | Method for reducing vibrations in rotating components Undesirable bending vibrations in at least one rotating component are reduced. An undesirable vibration is counteracted by the use of at least one actuator. A required sequence of signals to be applied to the actuator and/or an intensity level of those signals is ba... | 05/09/2006 |
| 7017483 | Method and device for reducing vibrations in rotating components Undesirable bending vibrations in at least one rotating component are reduced. An undesirable vibration is counteracted by the use of at least one actuator. A required sequence of signals to be applied to the actuator and/or an intensity level of those signals is ba... | 03/28/2006 |
| 6997106 | Shoe roll A multi-roll calender, supercalender, soft calender or equivalent has at least one nip (YN, PN1, KN, PN2, AN) profiling a fibrous web (W) which is being calendered. A shoe roll (1, 4, 6, 10) constitutes at least one of the calender rolls which d... | 02/14/2006 |
| 6874412 | Bale shape monitoring system for a round baler A bale shape monitoring system for a round baler for detecting a misshapen bale during bale formation. The system includes a pair of spaced apart rollers mounted to a movable member located within the bale-forming chamber, and which are normally engaged with spaced ... | 04/05/2005 |
| 6851356 | Calender and process for arranging rolls in a roll stack of a calender Calender with a roll stack and process for arranging rolls in a roll stack of a calender, the calender comprising two end rolls in a press plane and a plurality of middle rolls between the two end rolls. At least one of the middle rolls has an elastic surface and ha... | 02/08/2005 |
| 6840165 | Method and assembly for opening calender nips The present invention relates to a method and assembly for opening the nips (9,10) of a calendar comprising at least two elements (1, 2; 3, 4) brought to a nip contact with each other, especially for performing the nip opening at a break or damage occu... | 01/11/2005 |
| 6837157 | Calendar for a sheet of paper A calender for a sheet of paper comprising a metal roll which is rotated by a first driving unit. The calender further comprises a rotatable cylindrical jacket, a pressurizing shoe, and a plurality of support members. The cylindrical jacket is disposed opposite the ... | 01/04/2005 |
| 6701833 | Calender Calender and process of calendering a web in calender. The calender includes a frame, an upper roll, a lower roll, an intermediate roll arrangement that includes an intermediate roll that is fixed in the frame, and a load limiting device coupled to the in... | 03/09/2004 |
| 6666135 | Calender The invention concerns a calender which comprises a vertical stack of interlinked rollers driven individually by regulated electric motors. The regulation process acts on the distribution of the delivered power to the individual rollers such that the forc... | 12/23/2003 |
| 6606940 | Calender Calender that includes a stand, an upper roll, a lower roll, and at least two center rolls arranged between the upper and the lower rolls. The calender also includes at least two cylinders, where the at least two center rolls are supported on the stand by... | 08/19/2003 |
| 6523465 | Process for presetting a calender and calender for implementing the process A process for presetting a calender for a material web and a calender. The calender includes a roll stack having at least a first nip and a second nip arranged to define a stack plane and comprising a sag compensation lower roll having a rotationally secu... | 02/25/2003 |
| 6505549 | Method of and an apparatus for protecting the jacket upon a web break in a hot shoe press roll nip In a roll nip (5) formed between a shoe press roll (1) having a concave, plane or slightly convex press shoe (11), a flexible jacket (15) and a hot counter roll (3), the jacket (15) may be damaged by the heat from the counter roll (3) upon a web break. To... | 01/14/2003 |
| 6497177 | Calender arrangement and a deflection controlled roll and method of operating them A calender arrangement includes end rolls that are in the form of deflection controlled rolls having an internal stroke. One of the end rolls comprises at least one stop element that is in the form of a hydraulic positioned hydrostatic element which, toge... | 12/24/2002 |
| 6419794 | Method and apparatus for damping contact oscillations of rotating rolls In a method and apparatus for damping contact oscillations of rotating rolls in a paper machine, but notably in a coater, the rolls are held endways in bearings. At least two rolls form a nip with each other. The damping is carried out actively and the ac... | 07/16/2002 |
| 6349637 | Calender with magnetic device for adjusting the contact pressure between the rolls A magnetic calender comprises a pair of rotatable parallel rolls (1, 2) and an electromagnet provided with two pole pieces (6, 7) extending parallel to the rolls (1, 2) and joined to a common base (5) through a plurality of magnetic cores (8) having an ar... | 02/26/2002 |
| 6248215 | Calender and method for treating material webs in the calender Calender and method for treating a material web. The calender includes a plurality of rolls in which each roll has a rotational axis. The rotational axes of the plurality of rolls are arranged to be substantially located in a press plane, and a plurality ... | 06/19/2001 |
| 6213009 | Process of calendering The invention relates to a method for operating a calender, comprising a cylindrical heated roll and a flexible belt surrounding a stationary support beam which supports at least one actuator which may urge a concave load shoe against the heated roll by m... | 04/10/2001 |
| 6199476 | Roll machine and process for operating the same A roll machine is provided. A plurality of rolls are disposed in a stack to define a plurality of nips therebetween adapted to treat a material web. At least two of the plurality of rolls are driven rolls. A drive control commonly controls the driven roll... | 03/13/2001 |
| 6171629 | Methods and apparatus for joining dough blocks An apparatus for joining dough blocks to form a continuous dough sheet. The dough blocks are cut from a dough mass and drop into a space between first and second groups of rollers. The first and second groups of rollers include horizontally-paired rollers... | 01/09/2001 |
| 6158333 | Method and apparatus for calendering paper The invention relates to a method and an apparatus calendering a fiber web, wherein the fiber web passes through an extended and heated nip, said nip being formed on one side by a cylindrical heated roll and on the other side by a flexible tubular jacket ... | 12/12/2000 |
| 6158335 | Calender apparatus with a separating mechanism The invention relates to a method for operating a calender, comprising a cylindrical heated roll and a flexible belt surrounding a stationary support beam which supports at least one actuator which may urge a concave load shoe against the heated roll by m... | 12/12/2000 |
| 6095039 | Apparatus for treating a product web The calender disclosed comprises a vertical stack of linked rolls, which are driven individually by controlled electric motors. The control acts on the distribution of the supplied power to the individual rolls in such a way that the forces which act on t... | 08/01/2000 |
| 6012386 | Bearing control system for a roll with hydrostatic bearings A bearing control system for a roll with hydrostatic bearings which is mounted by its axle on a bearing block or other equivalent frame member by hydraulically loaded hydrostatic bearing elements. A principal bearing element acts in a principal loading di... | 01/11/2000 |
| 5961899 | Vibration control apparatus and method for calender rolls and the like A vibration control apparatus (20) and method for a calender (18) for controlling vibration between two or more rolls (ex. 22, 24) which controls vibration induced thickness variations in a medium (27) exiting from the nip. The apparatus (20) includes a f... | 10/05/1999 |
| 5816144 | Precision roll stand A precision roll stand includes a roll housing absorbing the rolling forces. In the roll housing rolls constituting a roll pair with their roll chocks are mounted so as to be rotatable and mutually adjustable by an adjustment device which changes the axia... | 10/06/1998 |
