Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 8132440 | Roll bending device The invention relates to a roll bending device for the control of profile and flatness in the rolling of metal plates or strips. In particular the invention relates to the well known principle of roll bending by using hydraulic cylinders to modify the load distribut... | 03/13/2012 |
| 7895871 | Rolling stand The invention relates to a rolling device (1) comprising at least two working rolls (2, 3) which are respectively mounted in a roll stand (6) by means of working roll assembly pieces (4, 5). At least one of the working rolls (2, 3)... | 03/01/2011 |
| 7631531 | Adjusting roll in rolling frames, among others vertical upset forging frames The invention relates to an adjusting roll for the rapid adjustment of rolls in rolling frames, among others vertical upset forging frames, comprising at least one respective piston, which acts on both sides of a working roll to adjust the latter, by means of assemb... | 12/15/2009 |
| 7500374 | Apparatus for urging an oil film bearing onto and off of a roll neck in a rolling mill An apparatus for urging an oil film bearing onto and off of a roll neck in a rolling mill comprises an annular hydraulically actuated piston/cylinder unit mounted on a cylindrical section of the roll neck. The cylindrical neck section is delimited at one end by a ci... | 03/10/2009 |
| 7387008 | Apparatus and method for rolling workpieces There is provided a new and improved apparatus and method for rolling workpieces such as crankshafts. The apparatus has first and second rolling heads mounted at spaced positions along a common rolling arm to receive a crankshaft bearing therebetween which can then ... | 06/17/2008 |
| 7380431 | Oil film bearing with compact hydraulic mount An oil film bearing is disclosed for a rolling mill roll having a tapered neck leading to a reduced diameter end section. The bearing comprises an internally tapered sleeve received in a seated position on the tapered roll neck. The sleeve is journaled for rotation ... | 06/03/2008 |
| 7381301 | Device and working method for automatically changing the work rolls, the back-up rolls and the intermediate rolls of a single-stand or multiple-stand strip mill A roll changing carriage can be displaced transversely with respect to the strip rolling stand and a removal crossbar is provided for the removal of the set of backup rolls. In order to shorten the roll changing times and to automate the changing of the rolls, the r... | 06/03/2008 |
| 7347073 | Rolling mill stand for the rolling of different rolled stocks which require different rolling forces A rolling mill frame for the rolling of different rolled stock which requires different rolling forces and which has working rolls, back-up rolls, optionally a roll being device for the working rolls and optionally a device for adjusting and balancing the back-up ro... | 03/25/2008 |
| 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 |
| 7234334 | Saddle for backing assemblies in a rolling mill A saddle for a backing assembly in a rolling mill has non-cylindrical bearing surfaces that accommodate wear by allowing the saddles to self-align. The non-cylindrical bearing surfaces help prevent the needle bearings from being pinched and driven into the gear ring... | 06/26/2007 |
| 7225657 | Elimination of rolling mill chatter A method for eliminating the vibrational chatter in a rolling mill stand, whereby existing roll chocks are machined to allow commercially available thrusting means, including hydraulic cylinders and the accompanying fittings and tubing, to be installed directly into... | 06/05/2007 |
| 7225865 | Apparatus for positioning a tong and drilling rig provided with such an apparatus A method and apparatus for positioning a tong comprises a piston and cylinder assembly and a mounting assembly therefor. The mounting assembly is mounted on a support beam in the drilling derrick and the piston and cylinder assembly is pivotally mounted on the mount... | 06/05/2007 |
| 7188496 | Method for detecting the vibrations of a roll stand The invention relates to a method for detecting the vibrations of a roll stand (1) equipped with a hydraulic jack (6) as a device for adjusting the rolling rolls (4, 5). The hydraulic jack comprises a sensor (64) for measuring the positio... | 03/13/2007 |
| 7182721 | Deflection controlled roll Deflection controlled roll that includes a rotating roll jacket, a rotationally fixed yoke arranged to axially pass through the roll jacket, and at least one hydrostatic support element arranged on the yoke to exert a supporting force on an inner side of the roll ja... | 02/27/2007 |
| 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 |
| 7159431 | Method of operating a section straightening machine A section straightening machine is operated by a method which involves passing the structural sections through the array of straightening tools. Section straightening forces are applied to adjustable shafts carrying the tools and adjusters at the service sides of th... | 01/09/2007 |
| 7111486 | Roll stand for hot-rolling or cold-rolling metallic strips The invention relates to a roll stand for hot-rolling or cold-rolling metallic strips. The roll stand comprises back-up rolls and work rolls (2, 3; 4, 5) which are respectively positioned in chocks (6; 7) in a rotating manner. Each chock (6; 7) ... | 09/26/2006 |
| 7086263 | Universal rolling stand with roll gap control A universal rolling stand with control of the space between the rolls comprises a pair of horizontal rolls and one or more vertical rolls with respective chocks, positioning housings and a guide for the chocks with adjustment tie rods (6, 7, 6′, 7′, 18, 18′... | 08/08/2006 |
| 7055354 | Method for adjusting a flattener under traction and corresponding device The invention concerns a method for adjusting a flattener under traction and a corresponding device, for providing a metal strip (5) in particular a cold-rolled steel plate, comprising a cage (1), cage posts (8), two stacked cassettes (2, 3 | 06/06/2006 |
| 7048050 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 05/23/2006 |
| 7043814 | Method for aligning tubulars An apparatus is provided with position sensors. When the apparatus has moved one tubular into alignment with another tubular a button on a remote control console is pressed to memorize the position. After the next tubular has been gripped by the apparatus a “recal... | 05/16/2006 |
| 7036610 | Apparatus and method for completing oil and gas wells A method of drilling and completing a wellbore in a geological formation to produce hydrocarbons from a well comprising at least the following four steps: drilling the well with a retrievable drill bit attached to a casing; removing the retrievable drill bit from th... | 05/02/2006 |
| 7021105 | Device and method to bend the rolls in a rolling stand A device to bend the rolls in a rolling stand, wherein each roll to be bent is rotatably mounted in two corresponding chocks each associated to two series of two double-effect actuators, for a total of four actuators for each chock. Each actuator is disposed on oppo... | 04/04/2006 |
| 6993951 | Bending device for the working rolls of a hot-rolling frame A hot-rolling stand including blocks arranged in the stand windows and having hydraulic piston cylinder units provided as bending devices which are able to transfer bending forces via guide elements onto the chocks of the working rolls. For each block a double-actin... | 02/07/2006 |
| 6959571 | Rolling mill and method for operating same Hydraulic cylinders are provided in a housing so as to be opposed to work rolls and backup rolls. Before a front end portion of a rollable material is engaged between the work rolls, the working oil pressure of the hydraulic cylinders is set at a high pressure value... | 11/01/2005 |
| 6895794 | Rolling mill and rolling method A screw down cylinder, an upper backup roll chock, and an upper work roll chock are pressed against an upper crosshead by hydraulic cylinders, and an upper roll cross mechanism is actuated, whereby the upper backup roll chock (upper backup roll), the upper work roll... | 05/24/2005 |
| 6763694 | Vibration damping apparatus Vibration damping apparatus (40) includes a body in the form of backup roll balance piston (42) positionable for sliding movement in an enclosure in the form of cavity (44) in the lower backup roll chock (30) of the mill stack (10)... | 07/20/2004 |
| 6561003 | Support system for cantilevered-roll shafts A rolling stand has a frame and a pair of support shafts centered on respective parallel shaft axes and each having an outer end projecting past the frame, inner and outer axially spaced bearing portions in the frame, and a gear between the respective inn... | 05/13/2003 |
| 6510721 | Rolling mill Work rolls opposed to each other have shafts rotatably supported by upper and lower work roll chocks of a housing, a screw down device for applying a predetermined pressure to the upper work roll is provided in an upper portion of the housing, screw mecha... | 01/28/2003 |
| 6446477 | Plate rolling mill The invention intends to always maintain a distance between a hydrostatic pressure bearing and a roll even in a transient state before and after the start of rolling, thereby sufficiently and surely preventing damage of those components upon contact with ... | 09/10/2002 |
| 6408667 | Four-high mill stand roll change device, a method of retrofit, and a roll change device therefrom The invention is directed to a roll change device for use in a four-high rolling mill stand, and in particular it is directed to retrofitting an existing four-high rolling mill stand with a roll change device comprising actuators that are fastened to oppo... | 06/25/2002 |
| 6386268 | Method for adjusting a continuous casting installation roll segment The present invention relates to an adjusting method for a roller section of a continuous casting machine which is provided with a section input side (6), a section output side (7) and a pair of roller carriers (1, 2) which each carry at least two rollers... | 05/14/2002 |
| 6354128 | Method to eliminate the play between chocks and relative support blocks in four-high rolling stands and relative device A method to eliminate the play between the chock (13) and the support element (16) in four-high rolling stands (10), the rolling stand (10) comprising working rolls (12) and back-up rolls (11) assembled on respective chocks (13, 14), support blocks (16) t... | 03/12/2002 |
| 6266989 | Method and machine for straightening sections A method and a machine for straightening sections by eliminating multi-axle deviations from the required section and from the required straightness using one or more straightening tools arranged, in series above and below the material to be straightened, ... | 07/31/2001 |
| 6170312 | Hydraulic load capsule for a metal working rolling mill This invention relates to a roll mill comprising hydraulic clamping devices acting on at least one roll (2) with adjustable level, and devices for measuring the position of the adjustable roll, comprising, at each end (42) of the roll, a measuring rod (4)... | 01/09/2001 |
| 6094959 | Compression unit for oscillating roll Compression unit for oscillating roll, suitable to generate a compression thrust on a surface subject to translatory movements on a plane which does not contain the axis on which the compression thrust is made. The compression unit include an oscillating ... | 08/01/2000 |
| 6073475 | Servo-assisted rolling stand A rolling stand having a stand casing, a first cylinder holding packing having a rolling cylinder rotatably mounted therein, a second cylinder holding packing having a rolling cylinder rotatably mounted therein with a rolling axis in parallel relation to ... | 06/13/2000 |
| 6035687 | Rolling mill stand for rolling wire A rolling mill stand for rolling wire and including a frame, at least one chock mounted in the frame and having a roll-side bearing and a thrust bearing, a roll support shaft supported in the roll-side bearing and the thrust bearing and projecting outward... | 03/14/2000 |
| 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 |
| 5996388 | Hydraulically preloaded rolling stands A rolling cage to produce hot rolled bars, comprising at least one pair of rolling cylinders (12, 13) mounted on their respective stands (14, 15) in which a clearance (17) (processing gap) between said cylinders (12, 13) is adjusted by a system of screws ... | 12/07/1999 |
