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Class 72/14.5 - By sensing hydraulic pressure


Subclass of Class 72 - Metal deforming
Definition: Subject matter including detecting the pressure on the tool
No. of patents: 23
Last issue date: 02/13/2007


NumberTitleIssue Date
7174758Device 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
7111486Roll 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
6510721Rolling 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
6401506Sheet rolling method and sheet rolling mill
In a rolling method applied to a multi-roll strip rolling mill composed of not less than four rolls, one of the zero point of the roll positioning devices and the deformation characteristic of the strip rolling mill or alternatively both the zero point of...
06/11/2002
6199417Tension control method for a rolling stock section
A tension control method for a rolling stock section located between a front roll stand and a rear roll stand of a rolling train, wherein a tensioning element with an actual adjusting force is adjusted relative to the rolling stock section, so that the ro...
03/13/2001
6065318Housingless 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
6029491Continous 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
6012313Process 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
6003355Rolling mill and rolling method
To provide a rolling mill in which work rolls being supported horizontally by static pressure bearings wherein, even under the action of an excessive horizontal force, preventing contact between the work rolls and the static pressure bearings to ensure th...
12/21/1999
5609054Rolling mill for flat products
A rolling mill for flat products characterized by a roll assembly including a pair of work-rolls confronted reciprocally, and support-rolls divided by not less than three partitions in a roll axiswise direction which are provided, independently, with load...
03/11/1997
5528917Force 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
5165266Chockless roll support system
A chockless work roll support and positioning apparatus and method comprises a pair of brackets for each end of each work roll and having a pair of work roll support rollers rotatably mounted on each bracket. Each bracket is connected to at least one actu...
11/24/1992
4989431Rolling device
A roll device has upper and lower controlled deflection rolls, having sleeves which are rotatable about respective non-rotatably mounted carriers are supported on the carriers by means of force generators in the pressure plane of the roll device, and are ...
02/05/1991
4882922Rolling mill roll with rotating shell
A roll with rotating shell comprising a fixed support beam (2), a tubular shell (1) rotatably mounted on the support beam (2) about an axis, a plurality of shoes for holding the shell distributed side by side along the length of the beam in an axial beari...
11/28/1989
4530224Strip-guide assembly for a metal strip coiler
One or more positioning devices in the form of pneumatic-hydraulic cylinders can be connected to one or more carriers for pressing rollers and/or guide plates of a strip coiler. At least one of the pneumatic-hydraulic positioning devices is suspended from...
07/23/1985
4484285Load-transfer mechanism
The invention contemplates a prestressed rolling mill incorporating a system of hydraulically operated load-transfer blocks, wherein the blocks are of unitary construction and bodily interposed between vertically opposed regions of upper and lower back-up...
11/20/1984
4481801Load-transfer mechanism
The invention contemplates a prestressed rolling mill incorporating a system of hydraulically operated load-transfer blocks, wherein the blocks are of unitary construction and bodily interposed between vertically opposed regions of upper and lower back-up...
11/13/1984
4218905Rolling mill
A rolling mill is disclosed wherein at least two drive rolls are mounted for rotation within a frame, with each drive roll being rotatably supported by at least one backing roll and at least one working roll is mounted for rotation between the drive rolls...
08/26/1980
4152913Straightening machine for straightening sheet metal and flat materials
A material straightening machine is provided with upper and lower roller frames and at least two piston assemblies interconnecting the frames and located respectively at the inlet and outlet sides of the roller frames. Each piston assembly includes a cham...
05/08/1979
4127997Rolling mill stand
A universal cassette type stand for a continuous rolling line which can be converted from a universal beam stand having two horizontal rolls and two vertical rolls into a stand having two horizontal rolls for rolling structural shapes. Each horizontal and...
12/05/1978
4086797Device for automatic adjustment of a roll gap between work rolls in mill stand
The device for automatic adjustment of the roll gap consists of two similar operable parts arranged on each side of a mill stand, each part comprising a two-chamber hydraulic cylinder for prestressing the mill stand. The cylinder is fitted with two rods, ...
05/02/1978
4083213Device for automatic adjustment of the roll gap in a mill stand
A device for automatic adjustment of the roll gap in a mill stand has at least one load cell for each side of the stand. The load cells are mounted under chocks of at least one of the rolls and are adapted to absorb a rolling force. For prestressing the s...
04/11/1978
4059976Rolling mill
A rolling mill has a pair of working rolls each provided with one or more sag-compensating back-up rolls on the respective side of the rolling plane having a fixed support beam with a roll shell rotatable about the beam and hydrostatic support means mount...
11/29/1977
 
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