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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7325427 | Machine for bending of long products and a method to control such a machine A machine is process monitored and controlled for continuous bending of long products to a predetermined radius by using three parallel contact-free distance meters (laser transmitters) and by measuring the distances to the bent surface on the product, by calculatin... | 02/05/2008 |
| 7310982 | Rolling method and rolling apparatus for flat-rolled metal materials The invention provides a rolling method for a flat-rolled metal material and a rolling apparatus for the method each capable of stably producing a flat-rolled metal material free from camber or having an extremely light camber. The method is a rolling method of a fl... | 12/25/2007 |
| 7225656 | Process for forming a workpiece and rolling machine In the transverse wedge rolling machine as claimed in the invention the drive motor is a permanent magnet motor, especially a torque motor. Furthermore the rotational speed of the rollers is controlled depending on their rotary position. ... | 06/05/2007 |
| 7174758 | Device for measuring the roll gap between the working rollers of a cold or warm rolling stand A device for measuring the roll gap (7) between the working rollers (1a: 1b) of a cold or warm rolling stand for rolling out narrow or wide strips of metal, especially NE metal strips, by means of roll gap sensors (6) whose ... | 02/13/2007 |
| 7171282 | Shell plating developing method, shell plating manufacturing method, computer program for teaching the methods, and image recording medium for teaching the methods The present invention provides a shell plating developing method leading to reduction of the amount of machining and improvement of the efficiency in manufacturing the shell plating. In the shell plating developing method according to the invention, a shell plating ... | 01/30/2007 |
| 7100411 | Device for reshaping and/or folding bodies of cans A can body is fitted to an inner shaping tool rotatable adjacent a freely rotatable outer shaping tool outside the can body. An arm having an outer end rotatably carrying the outer shaping tool and an inner end is pivotal about its inner end. The inner tool and the ... | 09/05/2006 |
| 6912883 | Load measuring system for a thread rolling machine and operating method therefor A thread rolling machine forming a threaded member from a workpiece includes a die, a device for rotating the die, a device for generating a load applied to the die in a workpiece-feeding direction, a member that deforms under the applied load during a thread rollin... | 07/05/2005 |
| 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 |
| 6443046 | Method of controlling a long-stroke, hydraulic operating cylinder There is described a method of controlling a long-stroke, hydraulic operating cylinder (1), in particular a screw-down cylinder for an edging stand, where the piston (4), to which a load can be applied at both ends, and which can be locked hydraulically a... | 09/03/2002 |
| 6112566 | Rolling method for rod-shaped rolling stock, Particularly rod steel or wire A method of rolling rod-shaped rolling stock, particularly rod steel or wire, in a roll stand having two work rolls which are adjustable relative to each other in an adjusting direction and which together form a roll groove with an actual roll gap, so tha... | 09/05/2000 |
| 6082161 | Method and apparatus of stably controlling rolling mill In a stabilization control of rolling, proportional differential control of snake motion of a to-be-rolled material caused during a rolling process, is achieved on the basis of a lateral deviation of loads which are detected by load sensors disposed on a ... | 07/04/2000 |
| 6065318 | Housingless rolling mill A housingless rolling mill having an upper and lower work roll, upper bearing blocks and lower bearing blocks for supporting the upper and lower work rolls, and screw-down cylinders for pulling the upper and lower bearing blocks vertically toward each oth... | 05/23/2000 |
| 6029491 | Continous spiral motion and roll bending system for rolling mills A system and method for extending work roll useful life and controlling workpiece profile during thickness gauge reduction of continuous metal strip by axially shifting rotating work rolls during rolling, applying work roll bending forces at locations for... | 02/29/2000 |
| 6012313 | Process for producing seamless tubes in cold rolling mills and for the formation and electronic regulation of external thrust Process for creation and adjustment, from one moment to the next, of the external force to apply by the feed assembly to the preformed forging in cold rolling mills of the "pilgrim process" type with rollers and mandrel for producing seamless tubes by mea... | 01/11/2000 |
| 5761945 | Quick automated tool changer roll forming apparatus The apparatus comprises a pair of rotatable devices each holding a plurality of metal shaping and/or cutting rollers, the rollers of one device meshing with rollers of the other device to produce specific designs or widths of material. This is made possib... | 06/09/1998 |
| 5528917 | Force controlled rolling of gears A gear rolling machine includes a pair of gear rolling dies for finish forming teeth on external gear blanks. A force sensor is mounted to the machine to monitor the amount of force applied to the gear blank by the rolling dies as one rolling die is infed... | 06/25/1996 |
| 5187959 | Programmable plate bending machine A roll bending machine for bending plates or iron sheets with a programmable work cycle; a central processing unit (CPU) by suitable sensing means controls the working positions of the rolls of the bending machine adjusting them according to programmed da... | 02/23/1993 |
| 5156034 | Contouring of metal sheets An apparatus for contouring plastically deformable sheet material comprises a pair of opposed indexable turret assemblies (2, 3) each including a plurality of shaping rollers (4) comprising either solid rollers (30, 31) or split rollers (32, 33). Opposed ... | 10/20/1992 |
| 5000020 | Method and arrangement for controlling the thicknesses of webs and flanges of beams in universal rolling mill stands A method and an arrangement for controlling the thicknesses of webs and flanges of beam sections in universal rolling mill stands. A gage-meter circuit is provided for each roll of the universal rolling mill stand. In order to maintain a certain ratio of ... | 03/19/1991 |
| 4843855 | Multi-pass rolling method and multi-path rolling-mill stand for carrying out said method A multi-pass rolling method and a multi-pass rolling-mill stand best adapted to carry out said multi-pass rolling method. In a rolling-mill stand having three or more work rolls arranged one above the other, a workpiece is simultaneously rolled at two or ... | 07/04/1989 |
| 4817407 | Rolling stand A rolling stand includes a stationary roll and at least one movable roll in spaced-apart relationship with the journals of the movable roll supported in a bearing unit which cooperates with a control mechanism for radially displacing the movable roll rela... | 04/04/1989 |
| 4736605 | Device for controlling the lifting and pressure movements of strip pressure rolls for hot rolled strip coilers The device serves to control the desired lifting and pressure-containing movements of strip pressure rolls for the reels which serve to store hot rolled strip. These reels have a rotating mandrel. The pressure rolls are actuated by piston and cylinder uni... | 04/12/1988 |
| 4651547 | Process for adjusting the thickness and profile of a flat product in the course of rolling At an installation comprising a roll stand having at least one roll of the variable camber type, comprising a fixed support and a casing carried by at least three jacks and rotationally movable about the support, the pressure of the fluid in each of the j... | 03/24/1987 |
| 4633693 | Method of controlling the strip shape and apparatus therefor Controlling for obtaining the aimed strip shape using a rolling mill provided with rolls, which are variable in amount of crown by feeding a pressurized oil in the inside. In addition, the rolling mill is provided with right and left pressing-down balance... | 01/06/1987 |
| 4502312 | Apparatus for controlling the pressing force between a controlled deflection roll and a counter element An arrangement for controlling the pressing or line force of a controlled deflection roll comprises a common adjustment or setting element for separate controllable supporting force sources or force-applying sources. Between the adjustment element and the... | 03/05/1985 |
| 4487044 | Friction compensation in a rolling mill having automatic gage control A rolling mill stand which includes roller elements for reducing the thickness of a workpiece which is passed therebetween further includes an adjusting mechanism for adjusting the gap between the roller elements and a sensor for sensing the roll separati... | 12/11/1984 |
| 4464921 | Arrangement for controlling a controlled deflection roll In roll arrangements composed of a controlled deflection roll and a counter element the controlled deflection roll is supported by discrete force-applying sources. On the one hand, these force-applying sources are set or adjusted in accordance with a pred... | 08/14/1984 |
| 4400957 | Strip or sheet mill with improved regulating device and method The invention relates to a strip or sheet mill having working rolls, backup rolls and axially displaceable intermediate rolls positioned therebetween. Associated with the rolled strip of the rolling mill is a flatness measuring device (e.g., for measuring... | 08/30/1983 |
| 4320643 | Method and apparatus for correcting asymmetrical condition in rolling mill A rolling mill in which rolls are displaced in axial direction thereof during operation in dependence on the width, profile and the like factors of a material being rolled. A real rolling load difference is derived by removing a rolling load change compon... | 03/23/1982 |
| 4214464 | Apparatus for controlling the thickness of rolled products There is provided hydraulically-operated work roll gap control cylinders forming a closed-circuit hydraulic system during rolling, and there are also provided hydraulically-operated backup roll control cylinders to which is connected a rolled product thic... | 07/29/1980 |
| 4116028 | Rolling mill A continuous rolling mill including roll stands arranged in series, each of which has a pair of work rolls and roll chocks for supporting them respectively. One of the roll chocks is mounted on the frame of the roll stand to be movable in a direction para... | 09/26/1978 |
| 4054043 | Closed loop integrated gauge and crown control for rolling mills In a four-high mill stand separate transducer means are provided for measuring gauge in the bite of the work rolls and for measuring the inclination of work roll axis to the horizontal. Means are provided for generating a gauge command signal proportional... | 10/18/1977 |
