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| Number | Title | Issue Date |
| 6161412 | Multi-strand finishing block A multi-strand finishing block finishes two or more daughter strands slit from a parent bar. Each strand is rolled by at least two pairs of rolls arranged in tandem with the rolls of each pair being at right angles to the rolls of the other pair. A common... | 12/19/2000 |
| 6065319 | Rolling mill with laterally different velocities Each of a pair of rolls has a barrel with different diameters axially of the barrel such that sum of the diameters of the barrels is substantially constant and that each of the rolls is bilaterally symmetrical. The rolls themselves have an ability to cont... | 05/23/2000 |
| 6058754 | Rolling train for rolling flat steel A rolling train for rolling flat steel using universal stands having--instead of vertical rolls--adjustable support members for pairs of loose vertical rollers arranged in the areas of the stands. The rolling train includes a roughing rolling group with v... | 05/09/2000 |
| 6053022 | Modular rolling mill In a modular rolling mill gear units are installed between selected rolling units in place of other rolling units which haven removed from the mill pass line to thereby provide a gap in the rolling sequence. Each gear unit is coupled to the drive units pr... | 04/25/2000 |
| 6041637 | Roll replacing method and system for chockless rolling mill A roll replacing method and a roll replacing system for a chockless rolling mill, in which bearings for supporting the ends of work rolls are supported at an eccentric position of rotary bushes on housings, and the rotary bushes are turned to set a roll g... | 03/28/2000 |
| 6038903 | Dual headed bending machine A bending machine has a machine bed on which a pipe supporting carriage is mounted to move a pipe in a first direction toward a dual bend head assembly at the forward end of the machine bed. The assembly has a support frame and first and second spaced ben... | 03/21/2000 |
| 6026669 | Discrete and coiled plate production The present invention is a method and apparatus for the production of both discrete metal plate and coiled metal plate products. In a mill having at least two in-line reversing plate mill stands, a reheated slab can be rolled on a first reversing plate mi... | 02/22/2000 |
| 6023957 | Universal roll stand with a divided housing on the operator side A universal roll stand with a divided housing on the operator side, wherein a vertical housing stirrup engages between the upper and lower separating lines or planes of separation of the housing. A transfer element overlapping the two separating lines for... | 02/15/2000 |
| 6023955 | Device for the bending of springs for spring interior mattresses A device for the manufacture of elastic springs for spring interior mattresses, vehicle cushions, cushions and the like. The springs are constructed from a row of continuous, spiral shaped parts arranged after each other. The device comprises a feeding to... | 02/15/2000 |
| 6014882 | Process and device for rolling out the ends of a coiled strip in a reversing rolling mill A method of rolling out the ends of a coiled strip in a reversing rolling mill having reels disposed on both sides thereof minimizes a length of strip at the strip ends having a non-conforming thickness. A start of the strip is introduced into the roll ga... | 01/18/2000 |
| 6003354 | Extrusion rolling method and apparatus The present invention is an apparatus and method for reducing the total number of required rolling passes of a metal strip in a cold rolling mill to achieve a desired strip thickness. This is accomplished by increasing the exit strip tension of the metal ... | 12/21/1999 |
| 5983693 | Rotary press with cut off apparatus A rotary apparatus (20) for rotary forming of a web workpiece (12) and having a rotatable first roll unit (32) and corresponding rotatable second roll unit (34), a first die support (46) carried by the first roll unit (32), having a leading edge (51) and ... | 11/16/1999 |
| 5960663 | Method and means of temperature control An apparatus and a method for controlling the lateral temperature control of hot material on a roller table of a hot roller mill employs adjustable heat-insulating panels below the hot material path, between the rollers of the roller table. Between each s... | 10/05/1999 |
| 5953947 | Method and apparatus for forming a profile in a wall of a hollow cylindrical work piece Hollow cylindrical blanks of tubular stock are transformed into finished work pieces (3) in a single work stroke with a profiling tool (7) equipped with profiling rollers (30) in one tool section (8) and a die matrix (15) in another tool section (6). The ... | 09/21/1999 |
| 5950474 | Bending apparatus A bending apparatus has a die, a first clamp for clamping an elongate work piece into engagement with the die forward of the transverse center line of the die on one side of the die and a second clamp for clamping the elongate work piece into engagement w... | 09/14/1999 |
| 5950468 | Resin film laminated steel sheet for can by dry forming A steel sheet of which both sides are laminated with a resin film wherefrom a two-piece can having a can height about twice the length of the can diameter and a thin wall thickness from 40 to 70% of the original sheet thickness can be formed under a speci... | 09/14/1999 |
| 5950473 | Coil spring forming and conveying assembly Disclosed herein is a coil spring forming machine and transfer conveyor assembly comprising a transfer conveyor operable through a succession of operational cycles and including and endless conveyor assembly and a conveyor drive servo-motor drivingly conn... | 09/14/1999 |
| 5943891 | Silencer shell forming apparatus In a silencer shell forming apparatus, a mandrel is divided into an upper segment and a lower segment as well as both the segments are permitted to move in a vertical direction to dispense with a setup job when a different type of a shell is formed. Furth... | 08/31/1999 |
| 5937689 | Triple roller entry guide An entry guide device comprising a funnel shaped inlet member in close proximity to three adjustable rollers mounted at 120° around the axis of work moving through the entry guide device. The adjustable rollers are actuated to move in concert so as to be... | 08/17/1999 |
| 5937685 | Method and apparatus for linear spring A method and apparatus are provided for forming the linear springs. In the apparatus three or more forming tools are arranged radially about the center of the quill for guiding the linear material are rotated within a predetermined angle about the centerl... | 08/17/1999 |
| 5937686 | Bending apparatus for hollow double-structured pipe This invention is concerned with an apparatus for bending a hollow double-structured pipe for use in an exhaust pipe of an internal combustion engine, for example, and aims at providing such hollow double-structured pipe which is capable of effecting favo... | 08/17/1999 |
| 5937688 | Adjustable side guide with quick change strip heater assembly A hot metallic workpiece is advanced between side guides extending along opposite lateral sides of a driven roller table for guiding the hot metallic workpiece to a hot mill. Each of the side guides takes the form of a beam section including an elongated ... | 08/17/1999 |
| 5934130 | Rolling mill drive apparatus, rolling mill and rolling method A rolling mill drive apparatus for driving any rolls of a pair of work rolls, 2 to 4 intermediate rolls and 2 to 4 backup rolls comprises a drive roller without tooth, rotated by an electric motor, at least one driven roller without tooth, contacting with... | 08/10/1999 |
| 5931040 | Rough rolling mill train The present invention is directed to a rough rolling mill for rolling a slab of material into a rough bar through a hot rolling process. The rolling mill reduces material temperature drop thereby preventing a decrease in productivity. The rolling mill tra... | 08/03/1999 |
| 5927128 | Roll stand arrangement for single strand rolling A block-type roll stand arrangement for single strand rolling including roll stand housings mounted on a support structure. The roll stand housings are all of the same construction and each receives a pair of roll support shafts and the drive gear units t... | 07/27/1999 |
| 5927127 | Reversing compact installation for cold rolling strip-shaped rolling material The invention relates to an installation for cold rolling strip-shaped rolling material, with a reversing stand disposed between two reel-up or unreeling coils or reels, and a second reversing stand in the rolling line of the first reversing stand, with b... | 07/27/1999 |
| 5927123 | Coil spring shaper A coil spring shaper includes a table, a winding shaft unit, a material feeding unit, a cutter, and a material hanger. The winding shaft unit is fixed on an upper surface of the table, receiving linear material from the material feeding unit movable a rai... | 07/27/1999 |
| 5927125 | Methods and apparatus for manufacturing helical products Methods and apparatus for forming devices including dead-ends and insulator ties from flat and other strips of material, as well as the devices themselves, are disclosed. Components of these devices may be formed continuously from a single strip, avoiding... | 07/27/1999 |
| 5927124 | Apparatus for bending and cutting tubing, and method of using same An apparatus for bending and cutting metal tubing includes a support base and a number of components attached thereto. A bend die is rotatably attached to the support base, and is pivotally movable about a pivot axis. The bend die has a tube-receiving per... | 07/27/1999 |
| 5924316 | Method of manufacturing pipes having sections with different wall thicknesses A method of manufacturing pipes having sections with different wall thicknesses from an initially plane sheet metal in which a starting sheet metal is subjected to a rolling deformation so as to intentionally produce areas of different wall thicknesses in... | 07/20/1999 |
| 5924319 | Roll crossing, offsetting, bending and shifting system for rolling mills A combined work roll crossing, offsetting, bending and work roll axial shifting system for a rolling mill having a housing member on each side and at each end of each work roll, Mae West blocks mounted on the housing members, roll chocks surrounding the e... | 07/20/1999 |
| 5924318 | Plant capacity of optimizing method for use with Steckel mill An optimizing method for improving the efficiency of production is provided for a steel rolling mill using a Steckel mill to roll steel slab to end-product thickness, and associated downstream equipment of limited capacity to generate strip and/or plate e... | 07/20/1999 |
| 5921128 | Method and apparatus for cold rolling tubes A method and apparatus for continuously feeding rolling stock through a cold pilger rolling mill. A rolling stock--either a continuous or so-called "endless" piece, or a plurality of serially fed, spaced-apart pieces--is initially fed into a roll stand by... | 07/13/1999 |
| 5921127 | Hot strip rolling mill A hot strip rolling mill comprises a strip front-end arresting device arranged between the finishing mill and the down-coiler, and the strip front-end arresting device holds a front-end of the strip and moves from an exit of the finishing mill to the down... | 07/13/1999 |
| 5921126 | Metalworking dies with soft metal lubricant platings A metalworking die has a soft metal plating on its contact surfaces. The plating produces a continuous lubricant supply which is only depleted slowly when employed in a hot metalworking operation. In forming a near-net-shape part using this die, the metal... | 07/13/1999 |
| 5918496 | Adjustable clamp die for tube bending machine A clamp die apparatus for co-operating with the bend die of a tube bending apparatus during tube bending has a support bolster adapted for adjustable mounting on a bend arm of a tube bending machine and a primary clamp die rigidly mounted on the support b... | 07/06/1999 |
| 5911784 | Sizing roll stand for a steel mill An assembly for producing a finished shape for a rod after the last rolling stage of a multi stand steel mill. This apparatus provides an operation for correcting minor surface irregularities and shape distortion of the rod as it exits from the finishing ... | 06/15/1999 |
| 5911783 | Adjusting device for the rolls of a calendar An adjusting device for the rolls of a calender having a hydraulic drive for the fine setting of the rolls in their working position and a hydraulic drive for positioning the rolls in the working, maintenance and roll-change positions. The hydraulic drive... | 06/15/1999 |
| 5910184 | Method of manufacturing hot-rolled flat products A production plant for producing hot-rolled flat products includes a rolling train composed of a plurality of roll stands, a run-out table with devices for cooling the hot strip, and with subsequently arranged coiling machines for coiling the strip. At le... | 06/08/1999 |
| 5907967 | Wire rod cooling In the continuous rolling of wire from a heated billet in a continuous wire-rod mill in which the rolled product passes through the rolling stand of a roughing line and an intermediate line, the finish rolling is effected in at least one finish rolling li... | 06/01/1999 |
