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| Number | Title | Issue Date |
| 7163434 | Method and apparatus for generating complex shapes on cylindrical surfaces A method and apparatus for shaping the radial surface of a roller or other cylindrically shaped part in a single cycle. The preferred embodiment forms a crown geometry on one roller at a time using a CNC system to control a grinding surface in three axes. The grindi... | 01/16/2007 |
| 6902465 | Grinding machine A grinding machine uses a conical grinding wheel (10) to create a non-circularly symmetric surface (defining, for example, a re-entrant cam) on a workpiece. The machine is operable to rotate such a workpiece about a first axis (5) and the machine has d... | 06/07/2005 |
| 6609997 | Method and apparatus for resurfacing anvil blanket of a rotary diecutter for box making machine A rotary die cuter for a box making machine has an abrading cylinder mounted for rotation alongside the anvil for engaging and resurfacing the blanket of the anvil on a virtually continuous basis to smooth, level and even the surface of the blanket. This ... | 08/26/2003 |
| 6439974 | Workpiece holder for a machine tool The driving device for a circular grinding machine where the workpiece is driven between two stationary centers comprises a driven device allowing a removable attachment of a driver which is adapted to hold and turn the workpiece by means of elastic force... | 08/27/2002 |
| 6431961 | Apparatus and method for chamfering wafer A grindstone and a wafer are rotated at high speeds in the same direction. The rotating wafer is slowly moved toward the rotating grindstone to thereby gradually chamfer the periphery of the wafer.... | 08/13/2002 |
| 6431951 | Online roll grinding method and online roll grinding apparatus Upper and lower working rolls 2a, 2b are ground while moving respective grindstone devices 3a, 3b in reverse directions, whereby the region of grinding for the upper working roll 2a and that for the lower working roll 2b are maintained in symmetry with re... | 08/13/2002 |
| 6287183 | Vacuum-hydrostatic shoe for centerless grinding A vacuum-hydrostatic shoe especially suited for supporting a workpiece in metalworking operations is disclosed. The vacuum-hydrostatic shoe is comprised of a body with a support surface confronting the workpiece. Preferably the support surface is shaped t... | 09/11/2001 |
| 6234885 | Roll grinding machine In a roll grinding machine (2) for profile grinding of rolls with a constructionally simple device for a very precise adjustment of a grinding wheels (4) supported on a grinding spindle (7) tangentially with respect to a roll profile, the grinding spindle... | 05/22/2001 |
| 6200204 | Roll grinder with vibration dampening A roll grinder system including a roll grinder bed of high dynamic stiffness, having a roll support and a grinding wheel support fixedly mounted to the roll grinder bed. The roll grinder bed is comprised of a monolithic epoxy granite block with a steel pl... | 03/13/2001 |
| 6159074 | Caliper assembly for a grinding machine Disclosed is a caliper assembly for measuring a diameter of a roll received on a roll support of a grinding machine which includes a frame positionable adjacent the roll support and a linear guide connected to the frame. A pair of measuring arms is connec... | 12/12/2000 |
| 5997389 | In-line grinding device for mill rolls and/or pinch rolls In-line grinding device for mill rolls and/or pinch rolls, arranged in cooperation with the working surface of the working rolls (11) and/or support rolls (12) and/or intermediate rolls of a rolling stand for sheet, strip and/or wide plate, or in cooperat... | 12/07/1999 |
| 5957756 | Process and device for regrinding rolls installed in hot-strip roll stands A process for regrinding the rolls installed in hot-strip roll stands using rotating pot-shaped grinding tools which are movable in an oscillating manner parallel to the roll axis. The grinding tool is fastened to the end of a grinding shaft which is driv... | 09/28/1999 |
| 5830044 | Roll grinding machine A grinding machine for the rolls of a roll stand includes a guide unit extending parallel to the roll to be ground. Mounted on the guide unit is a grinding unit which is displaceable in longitudinal direction of the roll by a displacement drive. The grind... | 11/03/1998 |
| 5800247 | Non-contact gaging apparatus and method An apparatus for non-contact gauging in precision machining, which comprises a sensor arm, a sensor head, a display device, a data entry device, a rotary encoder, and positioning device. The sensor head has a coarse contact sensor and a fine non-contact s... | 09/01/1998 |
| 5738570 | Arrangement for machining rolls during the rolling operation An arrangement for working or machining rolls which are mounted through chocks in roll housings. The arrangement includes a unit with abrasives for each roll, wherein the unit is mounted so as to be rotatable relative to the roll and so as to be adjustabl... | 04/14/1998 |
| 5672092 | Grinding machine A grinding machine comprises a grinding shaft which is rotatably mounted on the grinding shaft stock for rotation about a longitudinally extending shaft axis. The grinding machine includes at least one grinding disk fixedly mounted to the shaft and at lea... | 09/30/1997 |
| 5618224 | Roll cleaning device A device for cleaning or polishing a roll (4), mounted for rotation about an axis and comprising a cleaning roller (41) mounted for rotation on a support device comprising two parallel arms (15, 16) extending, respectively, between an inner end (15a, 16a)... | 04/08/1997 |
| 5616068 | Method and apparatus for grinding peripheral grooves in rolling mill guide rollers The present invention relates to a method for grinding grooves in the peripheral surface of rollers roller guides for rolling mills. The roller (2) of a roller guide is caused to rotate while retained on its own bearing (8,9,10) as the peripheral groove i... | 04/01/1997 |
| 5274956 | Device for grinding the working rolls of a planetary mill A device for facilitating the grinding of the working rolls of a planetary rolling mill in which working rolls are mounted together with intermediate rolls in cages which rotate about a support body, a rolling mill having an upper planet roll and a lower ... | 01/04/1994 |
| 5035086 | Cylindrical grinding machine suitable for use on the rolls of a rolling mill or the like A grinder capable of disassembling a pair of rolls of a rolling mill each having a pair of bearing assemblies on its opposite ends, separately grinding and reconditioning the disassembled rolls, and reassembling the reconditioned rolls. Included are a pai... | 07/30/1991 |
| 4811524 | Cylinder grinding machine with tracing and dimensional and surface checking A cylinder grinding machine with devices for tracing and dimensional and surface checking has a front bench provided with rests for supporting the workpiece and a head and a counterhead for rotation and longitudinal restraint of the workpiece. A rear benc... | 03/14/1989 |
| 4767438 | Apparatus for cleaning material transporting rollers The roller cleaning apparatus of the present invention includes a frame which has a pair of caster mounted wheels located at one of its ends. The casters are connected to one another through a tie-rod which causes them to turn as a unit between a right-ha... | 08/30/1988 |
| 4671017 | Method and apparatus for grinding a rotary body A method and apparatus for grinding a roll in a rolling mill on an on-line grinding basis, are improved in that a freely rotatable grinding body such and is a grindstone is pressed against a surface of the roll to be ground as directed in the direction ma... | 06/09/1987 |
| 4524546 | Roll profile gauge The surfaces of worn and ground rolls are profiled by an electronic processor based gauge which is easily mounted on a roll grinding machine. A fluidic sensor within the gauge determines the distance to the roll surface. The change in roll diameter is det... | 06/25/1985 |
| 4516212 | Control system for roll grinding machine An adaptive control system for a roll grinding machine. A desired radius as a function of longitudinal direction of the roll is preprogrammed. A power driven grinding wheel is applied to the roll and power to the grinding wheel is monitored. For each long... | 05/07/1985 |
| 4512115 | Method for cylindrical grinding turbine engine rotor assemblies Blade tips of a turbine rotor assembly are ground to precision dimensions of &#b1;0.025 mm (&#b1;0.001 inch) when the assembly is rotated at high speed during grinding. The speed should be sufficient to produce on the blades a radial acceleration of at le... | 04/23/1985 |
| 4509295 | Controlled grinding of rollers for elimination of cracks A method and apparatus are provided for controlled grinding of roller surfaces. A rotary drive rotates a roller and a grinding wheel is rotated, which has a rotation axis parallel to the axis of the roller. The rotating grinding wheel is pressed against t... | 04/09/1985 |
| 4441281 | Pulse cancellation circuitry A digital control system for a roll grinding machine controls the infeed of the grinding wheel in a manner which minimizes the impact of momentary changes in infeed command. The momentary change in infeed command which is effectively controlled is that of... | 04/10/1984 |
| 4291505 | Process for producing negative-crowned roller The disclosure provides a process for producing a negative-crowned roller having a progressively decreasing diameter from both ends toward the center thereof by means of a one-dimensional mutual displacement between the raw material of the roller and the ... | 09/29/1981 |
| 4274183 | Apparatus for copy-machining of a workpiece An improvement is disclosed in apparatus for copy-machining a workpiece from a master model, the apparatus being moved along the workpiece by a feed mechanism in response to the scanning of the master model. The improvement comprises a first tool and a se... | 06/23/1981 |
| 4238205 | Making of pilger roll The grinding wheel and roll are particularly positioned to each other on the basis of parameters representing the local slope changes of the roll groove and its deviation from a semi-toroidal groove. The grinding wheel can be moved in two orthogonal direc... | 12/09/1980 |
| 4218850 | Cambering devices of roll grinding lathes In a cambering device of a roll grinding lathe of the type wherein a grinding wheel is moved toward and away from the center of a roll by means of a cambering cam while the grinding wheel is moved in the longitudinal direction of the roll, there are provi... | 08/26/1980 |
| 4211040 | Process for machining silicon rods and tubes by abrasion The invention provides a process and an apparatus for machining silicon r and tubes by abrasion. The risk of fracture of such workpieces during grinding is prevented in this method and apparatus by the workpiece being held vertically in a cylindrical gri... | 07/08/1980 |
| 4208754 | Cleaning apparatus for conveyor rolls Apparatus for removing uneven and crusty deposits from, and burnishing the surfaces of, conveyor rolls employed in the manufacture of flat glass. The apparatus includes a lower main unit comprising an elongated main frame having a pair of roll supporting ... | 06/24/1980 |
| 4184293 | Roll neckrest support A roll grinding machine having a neckrest which comprises a pair of roll supporting gibs functioning as independent load carrying members as well as having means for adjusting both the supporting gibs permitting accurate axial alignment of the roll in the... | 01/22/1980 |
| 4112625 | Device for grinding elongated cylindrical workpieces Method of grinding elongated, cylindrical workpieces in continuous operat in a grinding machine wherein the workpieces are advanced while they are rotated about their longitudinal axes includes exerting an oscillating grinding pressure transversely to th... | 09/12/1978 |
| 4077163 | Pivot mechanism for grinding wheel infeed The apparatus of this invention is for use in a grinding machine and consists of a mechanism constructed for rotatably mounting the wheelhead support structure of the grinding wheel for movement about an axis eccentric from the axis of the grinding wheel.... | 03/07/1978 |
| 4063906 | Method for grinding elongated cylindrical workpieces which are advanced during the grinding operation while being rotated about the longitudinal axis thereof Method of grinding elongated, cylindrical workpieces in continuous operat in a grinding machine wherein the workpieces are advanced while they are rotated about their longitudinal axes includes exerting an oscillating grinding pressure transversely to th... | 12/20/1977 |
| 4014227 | Wire guided roll crowning attachment for lathes An apparatus for compensating for deviations in the straightness of the bed of a machine tool including a wire means providing the reference of straightness. In one embodiment, a wire means is tautly mounted along the bed and submerged in oil to help prev... | 03/29/1977 |
| 4003207 | Method of and device for anchoring a reinforcement beam to a sheet piling There is disclosed a method of and a device for strengthening a sheet piling by means of one or more beams, particularly double T- or I-beams. Such strengthening is effected by driving a beam adjacent to one side of the sheet piling into the ground. The b... | 01/18/1977 |
