Abstract: A rod or bar mill stand (72) is constructed to be used either in vertical or horizontal disposition. When in the horizontal disposition the rolls (3) are driven directly by the usual drive consisting of motor, pinion box and drive spindles which are arranged at the same general level as the stand. When the stand is in the vertical disposition, a drive adaptor (50) is introduced to transmit the drive from the drive spindles to universal spindles (71) arranged about the stand (72) to connect to the necks of the rolls (3).

Abstract: An edger mill comprising a pair of oppositely mounted vertical rolls adapted for relative movement whereby the gap between them can be adjusted. Each roll is provided with a drive including a drive shaft comprising two drive sections extending generally parallel to the direction of roll gap adjustment. The first drive section has a splined portion coupled to a drive pinion for accommodating large adjustments effected in the roll gap when the mill is not under load. The second drive section is connected to the first drive section by a splined coupling which accommodates small roll gap adjustments effected when the mill is under load.

Abstract: A set-up method for unequal speed circumferential rolling. The setting values of the circumferential speeds of a higher speed roll and a lower speed roll and the roll position are obtained by using, as rolling parameters in a rolling schedule, the inlet and outlet thicknesses, the forward and backward tensions, the radii of the rolls, the frictional coefficients and the ratio of the circumferential speeds of the rolls. The setting values are computed such that these values meet the rolling conditions within both the load limit value and the tension limit value.

Abstract: Upper and lower reducing rolls are mounted within a mill housing for rotation about their axes and for parallel movement. Actuating cylinders force the upper reducing roll downward toward the lower reducing roll to effect a separation force on a workpiece that is placed therebetween. Four direct drive motors, one directly coupled to each end of the upper and lower reducing rolls, counter-rotate the reducing rolls to drive the workpiece therebetween. The motors are synchronized within a close tolerance of a set speed to prevent torsion of one end of the reducing rolls relative to the opposite end. Preferably, the rolling mill includes closely enclosed backing rolls engaging the reducing rolls to prevent deflection of the reducing rolls under load. This allows the rolling mill to produce a flat workpiece over a wide range of separation forces by means of cylindrical reducing rolls.

Abstract: A mill and a method for rolling flat workpieces of great width such as metallic strip, plates and the like. The mill comprises upper and lower housing beams joined at their ends by pairs of channels defining windows in which chocks are slidably mounted. Upper and lower work rolls are mounted in the chocks to maintain the work rolls in the vertical plane of symmetry of the mill. Each work roll is provided with a plurality of pressure transmitting elements evenly spaced therealong and contacting a part of the periphery of the work roll. The set of pressure transmitting elements for the upper work roll is operatively affixed to the upper housing beam and the set of pressure transmitting elements for the lower work roll is operatively affixed to the lower housing beam. The pressure transmitting elements of at least one of the sets are each provided with a fluid pressure actuator by which the pressure exerted by that pressure transmitting element on its respective work roll can be rapidly increased or decreased.

Abstract: In a rolling mill having a pair of upper and lower work rolls, defining a pressure gap therebetween through which a material is passed to be rolled, a method and apparatus for controlling the rolling mill under the different peripheral-speed rolling operation in which one of the rolls is driven at a predetermined peripheral speed by controlling the speed of a motor for driving the one roll, and the other roll is controlled to generate a torque corresponding to a difference, between a total torque required for the rolling operation and a torque generated by the one roll by controlling the torque of the motor for driving the other roll on the basis of a torque command corresponding to the torque difference.

Abstract: A single strand rolling mill has successive pairs of work rolls arranged to roll rod and bar products in a twist-free manner. The work rolls are carried on roll shafts included as part of roll packages which are detachably mounted to gear housings, and the gear housings contain intermediate drive shafts and intermeshed gears connected via line shaft segments and intermeshed bevel gears to a primary mill drive. The gear housings are carried on a base which is made up of a flat vertically upstanding structural member standing on edge and joined to an underlying base plate. The structural member extends beneath and in parallel relationship to the rolling line. Rib members extend laterally away from and are spaced along opposite sides of the structural member. The rib members are joined on edge to both the structural member and the base plate and have upper support edges on which the gear housings are secured.

Abstract: Apparatus for producing spine fin material of the type employing counter-rotating toothed cutter rolls to transversely slit ribbon stock. The apparatus includes a positive gear drive for controlling the angular cutter roll postions and a support arrangement permitting center-to-center adjustment of the cutter rolls independently of the center-to-center relation of associated gear drive elements.

Abstract: A mini hot strip mill comprises three close coupled mill stands including a first and second four high finishing mill and a two high roughing mill positioned therebetween. A first coiler furnace is positioned upstream and a second coiler furnace is positioned downstream of the mill. The mills may each be retained in their own mill housings or the finishing mills may be in separate housings and the roughing mill may be retained in supports connecting the finishing mill housings. The mills are closely spaced so that the finishing mills are maintained open while operating in a roughing mode so as to allow free passage of the slab being reduced and the roughing mill is maintained open while the two four high mills are operative in a finishing mode. Two motors connected through a gear box to said mill provide for independently driving the finishing mills in speed coordinated relationship and for jointly driving the roughing mill.

Abstract: A modular unit for mounting in a mill, which unit has a housing containing a pinion fixed to a shaft with a drive gear extending from the housing. The housing partially encircles the periphery of the pinion and has an upper member for mounting a thrust bearing on one end of the shaft and a lower capsule plate element mounting another bearing opposite the thrust bearing, which plate is snugly received in an aperture in the mill through which the drive gear passes. The modular unit is secured to the mill along at least two planes in a manner to completely enclose the pinion and gear and to permit disassembly thereof through axial and radial movements of the unit relative to the axis of the shaft.

Abstract: A rolling mill comprising a roll housing in which are mounted a pair of work rolls which can be bent by work roll benders and a pair of support rolls therefor which are displaceable relative to each other in their axial direction and are bent by support roll benders. To minimize the size of the window of the rolling mill housing while including a plurality of mechanisms such as roll benders and means for roll displacement, said support roll benders are disposed closer to the center plane of the rolling mill than the work roll benders.

Abstract: A process for rolling a metal strip for reducing its thickness and for increasing the maximum reduction attainable per pass using a cooperative type rolling mill comprises applying differential separating forces to the metal strip without changing the magnitude of the compressive force applied to the rolls. By doing this, the maximum strip tension and the forward tension required to pull the strip through the mill may be reduced. The maximum strip tension and the required forward tension force may further be reduced by driving at least one work roll at a desired value of torque as well as applying differential separating forces. The cooperative type rolling mill uses a roll spacing arrangement to space at least some of the rolls for reducing the separating force applied to the metal strip at selected roll bites. In addition, individual drive motors to drive the work rolls at desired torque values may be utilized.

Abstract: A vertical rolling mill is disclosed wherein a means for driving the mill rolls is comprised of a rigid vertical spindle having universal joints and couplings at either end which is detachably connected to the mill roll at its lower end and connected to a splined driving member at its upper end. The splined driving member consists of two parts. First, a hollow sleeve is mounted vertically in a drive case on the mill frame. The sleeve is supported within the frame through top and bottom antifriction bearings. It has internal splines at the lower end of its bore and an internal shoulder above the spline end. Second, a vertical shaft with an external spline and collar is inserted into the sleeve. The vertical shaft engages the internal spline of the sleeve and is supported by its collar which rests on the internal shoulder in the sleeve. Thus, the top frame, rather than the mill roll bearing, supports the weight of the spindle, joints and pod coupling.

Abstract: In a method of rolling tubes in a stretch-reducing rolling mill having a group drive in which the elongation, and therefore the tension is increased by increasing the speed of an auxiliary drive motor relative to that of a main drive motor, the length of the trailing "thickened end", which must be rejected as scrap, is reduced by increasing the elongation from the point in time at which the start of the trailing end portion of the tube reaches the last stand. This trailing end portion is that portion which receives a larger wall thickness than the central portion of the tube as a result of the reduced tension exerted in the trailing end portion of prior art practices. The start of this trailing end portion can be predicted from experience or by rolling a sample tube without subjecting its trailing end portion to the said increased elongation and measuring the wall thickness at the trailing end portion of the sample tube.

Abstract: At least one head on a roller forming machine can be fixed at any of several different positions along the length of its frame. A line shaft extending along the frame has a bevel pinion for each head, meshing with a driven bevel gear on the head, to drive forming rollers on the head. Each bevel pinion comprises a front two-part pinion member and a rear two-part collar member. Each two-part member has a coaxial bore through it, and its two parts, held together by clamping screws, separate on a plane containing its axis. The bore through the pinion member has a sliding fit on the line shaft, that through the collar member has an interference fit, and the opposing surfaces of the collar member parts are taken down so that the collar member tightly clamps the line shaft. In the front surface of the collar member and the opposing rear surface of the pinion member are radially extending keyway grooves in which keys are received whereby the collar member constrains the pinion member to rotate with the line shaft.

Abstract: A wire rolling mill in block form, a so-called wire block, with driving bevel gears which are disposed on a longitudinal shaft and can be selectively coupled by means of clutches with the line shaft and with slow speed supplementary drives for each driving bevel gear, each such supplementary drive becoming operational as the associated driving bevel gear is disengaged, so that shut-down drive lines for inoperative rolls are kept in rotating motion. The supplementary drives are engaged by means of axially slideable driving wheels, more particularly driving wheels of bevel gear construction, which mesh with the driving bevel gears in driving connection only when the associated clutch is disengaged.

Abstract: A metal strip stretching mill comprising a stretching station and, oppositely adjacent thereto, a group of pulling rolls and a group of braking rolls with adjustably speed-controlled drives on the rolls in the immediate vicinity of the stretching station and torque-controlled drives of stepped-up or stepped-down power on all other rolls, and a disconnectable clutch at the roll trunnion of at least one torque-controlled roll in the middle of each roll group, for a downward expansion of the usable power range of the installation through selective disconnection and idling of said rolls.

Abstract: An edger mill having a pair of edging rolls mounted for variable positioning apart from each other is powered by a plurality of electric motors driving the rolls from above, having a long shaft extending upwardly from each roll, with a bull wheel connected to each shaft in driving relation, each bull wheel having two or more electric motors connected thereto in driving relation by respective pinions. Synchronization between the edging rolls may be effected by mounting the bull gears in mutual intermeshing relation, or by using synchronous motors so that the common bus supply to the motors constitutes a synchronizing agency to maintain the edging rolls in synchronized relation.

Abstract: In a multi-stand stretch-reducing tube-rolling mill, the stands at the entry end forming a first group are driven from a main motor and an auxiliary motor and the remaining stands forming a second group are driven from the main motor and a separate auxiliary motor, the corresponding rotational speeds derived from the main motor and one or other of the auxiliary motors being added by means of a planetary gear in a summing transmission. A single stand between the two groups can be driven from the main motor only. The separate auxiliary motor at the entry end enables control over the tube elongation (or compression) to be effected over a shorter tube length, and thereby more accurately.

Abstract: The disclosure of the present invention relates to a compensating counterweight system used in a cold pilger step-by-step type seamless tube rolling mill reciprocated by a crank assembly. The crank assembly includes first and second compensating mass devices which are arranged to rotate coaxially on a single crank shaft in opposite directions relative to each other. The two mass devices are kinetically connected through a bevel gear drive set which causes the second compensating mass device to rotate in an opposite directon to the first compensating mass device.

Abstract: The present invention relates to methods of rolling metal articles and can be used to advantage in rolling sheet steel. This method envisages the rotation of drive and driven work rolls in opposite directions at a higher and a lower peripheral speeds, respectively. The chosen ratio between the peripheral speeds of the work rolls is less than the elongation of the article so that thereby the specified unit tension applied to the article at the exit section thereof is provided for with reference to the ultimate strength of the metal emerging from the rolls. This is conducive to increasing the maximum elongation of the article and reducing the roll force by a considerable amount with the constriction of the article in breadth at the same time.

Abstract: A transmission for driving a stretch-reducing rolling mill is provided having a spur-wheel differential arranged in a spur-wheel support sleeve forming part of an auxiliary speed transmission train in a transmission for driving the rolls of a multi-stand stretch-reducing rolling mill, a spur-wheel support sleeve forming part of a basic speed transmission train is connected by way of a safety coupling having shear pins to the sun wheel of the differential transmission stage and the speed of the output shaft which forms the plantary carrier of the transmission stage is thus formed from the basic and auxiliary speeds.

Abstract: A rolling mill is provided in which the stands can be angularly displaced about the longitudinal axis of the work material so that the drive shaft slopes upwardly or downwardly from the associated output spindle of the drive transmission. This enables rolls of ideal diameter (D.sub.i) larger or smaller by up to 20 mm than the rated ideal diameter for that stand location to be used. A flexible coupling compensates for the angular misalignment of up to 2.degree. between the drive shaft and the output spindle.

Abstract: An improved cold roll forming apparatus providing for the exchange of rolls as a unit is disclosed, wherein sets of rolls are provided easily and removably exchangeable between sets of stands by one process. A frame supports the rolls and is lifted up to position the rolls between the stands, and at least one or more springy compressible devices are provided on the roll axles to operate as buffers and as devices to accelerate unfastening the rolls from holders of the stands. The springy compressible device has a cylindrical housing, a cover plate, and a spring exerting a biassing force between the cover plate and housing.

Abstract: A rolling process wherein a pair of working rolls are driven at different peripheral velocities so that the peripheral velocity ratio may be varied, and the peripheral velocity ratio is so controlled that the rolling torque of each of the working rolls may be within a maximum tolerable torque which the working roll may transmit, thereby reducing the rolling force.

Abstract: The stand-to-stand transmission ratios between the working sizing passes at the entry end of a rolling block for rolling bars, rods or wire are fixed but are different from one another. This enables an entire range of finished workpiece cross sections to be obtained from a given first pass workpiece entry cross-sectional area, merely by omitting one or more of the working stands and shifting other working stands from one location to another and by changing only the stands of the finishing sizing passes at the delivery end of the block.

Abstract: A method of and apparatus for rolling metal strips in a rolling mill having a 4-high roll stand and a tension roll stand comprising a plurality of pairs of combined rollers. The method comprises advancing the metal strips through the 4-high roll stand and tension roll stand, so that the strip extends between the roller of each pair of combined rollers and is partially wrapped around each of the rollers. The rollers of each pair are rotated in opposite directions at a pre-determined circumferential differential speed ratio.

Abstract: A device for controlling the rotation of the working rolls in a tube rolling mill of the kind comprising a number of housings, each containing three working rollers normally in axial alignment on a single bearing structure, the rolls in each housing being keyed to corresponding shafts controlled from outside the housing and actuated by a single rotor, the device being characterized in that it comprises:three high-speed shafts (8, 14, 21) borne outside the plurality of housings (2) in the rolling mill (1) and extending parallel to the common axis of the housings (2),a reduction gear (22, 23, 24) for each working roll (4, 5, 6) of each single housing (2), borne outside the housing and axially engageable or disengageable from the corresponding shaft (4a, 5a, 6a) of the aforementioned roll (4, 5, 6),a bevel gear (22a, 23a, 24a) between each reduction gear (22, 23, 24) and one of the high-speed shafts (8, 14, 21), anda kinematic transmission (9, 11, 13-16, 15, 20) between the single motor (7) and each high-speed s

Abstract: A rolling mill comprises a pair of upper and lower work rolls, upper and lower backup rolls respectively backing those work rolls, upper and lower intermediate rolls interposed respectively between the upper work roll and upper backup roll and between the lower work roll and lower backup roll, and benders connected to the upper and lower intermediate rolls, respectively. This arrangement enables the surfaces of the upper and lower work rolls in contact with a material to be rolled to be made substantially rectilinear.

Abstract: Crushing apparatus employs a pair of rotatable crusher drums mounted to rotate about vertical axes to crush material such as mineral ore, fed through a gap between the drums by means such as scraper-chain conveyor. The drums are mounted on pivoting rocker arms which are adjustable to vary the crushing gap. The drums are hollow and are driven in opposite directions by hydraulic drive motors located inside the drums. Conveniently, the hydraulic motors have rotors connected to radial flanges inside the drums and stators fixed to the rocker arms.

Abstract: A roll mill stand comprises a housing which mounts chocks having secured therein journals carrying work rolls forming a pass, at least one of said work rolls being coupled by means of a splined joint with one end of a spindle, the other end of said spindle being connected by a splined joint to a pinion geared to a drive means. The roll mill stand is provided with an arrangement for axial displacement of the spindle, comprising a motion screw mounted coaxially with the spindle and coupled with its other end, the motion screw carrying a nut with a disk affixed to the end face thereof, the nut being mounted on a hub coupled with the spindle shaft for rotation with respect to said nut, the roll mill stand being additionally provided with a braking mechanism placed on the stationary part of the roll mill stand and cooperating with the disk of said nut, as said nut is being slowed down to disengage the spindle from the work roll.

Abstract: A rolling mill having a roll stand with back-up rolls and two cylindrical work rolls. The work rolls have roll-pass grooves associated in pairs with different roll-pass areas. The driving mechanism of the rolling mill is coupled to the back-up rolls which exercise constant pressure on the work rolls during rolling so that these are in hard mutual contact and rotate with the back-up rolls. The work rolls are axially displaceable in the roll stands between the back-up rolls when the latter are open so that a desired roll-pass groove can be positioned with its center line coinciding with the central plane of the rolling mill.

Abstract: A rolling mill stand, particularly for rolling rod, has two roll shafts each carrying a roll. Each roll shaft is carried by an eccentric shaft which also carries a drive shaft aligned with the roll shaft and coupled to it through a drive coupling permitting limited misalignment between the roll and drive shafts. An adjustment drive mechanism acts on the two eccentric shafts to turn them equally and oppositely and to cause the separation between the roll shafts and between the drive shafts to be altered. Each drive shaft has a gear drive consisting of a gear on the drive shaft meshing with a gear on an auxiliary drive shaft and the gears on the two auxiliary drive shafts mesh with one another.

Abstract: A multi-line rolling system having a plurality of rolling positions aligned in the direction of rolling. Each rolling position includes a housing or housing structures supporting at least two sets of work rolls which may be selectively coupled to a common power source, thereby permitting the rolling line formed by one roll set to be rendered inoperative while the rolling line of the other roll set continues to roll product received from a feed line. The system further includes an appropriate switching mechanism for directing product from the feed line to either rolling line.

Abstract: An apparatus for selectively drivingly connecting two drive spindles to roll necks of a rolling mill includes a base frame, a movable frame slidable on said base frame, two pairs of sliding posts vertically secured on a transverse member of the movable frame, at least two pairs of holding means slidable on the pairs of sliding posts and actuated by a hydraulic actuating means respectively so as to hold yokes of the drive spindles in a position in alignment with the roll necks of the roll mill, and another hydraulic actuating means actuating the movable frame toward studs of a pinion stand or the roll necks of the roll mill.

Abstract: A pilgrim step rolling mill in which a carriage for advancing the product be rolled toward the roller cage is driven intermittently in synchronism with the reciprocation of the roller cage by a screw which is both reciprocated axially and continuously rotated. The carriage advances to drive the product only in response to axial movement of the screw in one direction. The overall mill arrangement reduces the number of and extent of the gearing required.

Abstract: Metal rolling process and mill wherein the ratio in peripheral velocity between a pair of upper and lower work rolls is so controlled that a metal may be rolled to a desired shape or to close thickness tolerances.

Abstract: The machine comprises a frame, a first roller rotatably supported by the frame and a second roller rotatably supported by the frame and disposed below the first roller to cooperate therewith. A gear is secured to the first roller to be rotatable therewith meshes with at least two pinions, each mounted on the shaft of a respective pressure-fluid operable motor. A pump is connected to each of the pressure-fluid operable motors to supply pressure-fluid in common to the motors so that all the pressure-fluid operable motors operate in synchronism.

Abstract: In a rolling mill having a plurality of roll stands aligned along the mill pass line, each roll stand having parallel roll shafts carrying cooperating pairs of work rolls, with the roll shafts of at least some of the roll stands being offset 90.degree.

Abstract: A support assembly for coupling of a large-sized universal joint of the cardan type as incorporated in a drive assembly for rolling mills. The assembly supports the coupling on a drive spindle portion to prevent the coupling from hanging. A locking rod fixed to the center of the coupling extends through a hole of large diameter formed in the center of the spider of the universal joint, with a sufficient radial clearance provided between the rod and the inner periphery of the spider. The piston rod of a hydraulic cylinder disposed within an inner bore of the drive spindle portion operates to slidingly move a rod receiving member within the bore, thereby bringing a recess portion of the rod receiving member into engagement with or disengagement from the free end of the locking rod. The coupling is securely supported on the drive spindle portion by the engagement of the rod receiving member with the locking rod.

Abstract: The machine comprises a succession of heads each provided with two superimposed rolls and arranged in alignment one behind the other. One of the roll support shafts of each head is connected to a particular hydraulic drive motor and is connected to rotate with the corresponding shaft of each one of the adjacent heads through a connection which is capable of being disconnected. All the motors are connected to the same source of fluid under pressure.In a preferred embodiment, in each head the shaft connected to the motor carries a notched pulley and is connected with the corresponding shaft of each of the adjacent heads by a notched belt engaged with the pulley it carries and with the pulley of the corresponding shaft.

Abstract: A roll drive for a machine of the type used in connection with the manufacture of paper. The roll which is to be driven has an end situated at a plane which is normal to the roll axis, and at the latter plane there is a supporting structure which supports the roll for rotation about its axis. Closely adjacent to this plane is a planetary gear transmission having an output and an input. The latter output is connected by way of a suitable transmission structure to the end of the roll for driving the latter with the output of the planetary gear transmission, while a rotary drive is connected to the input of the planetary gear transmission for driving the roll through the latter transmission and structure connected between the planetary gear transmission and the end of the roll.

Abstract: A drive mechanism which itself has the function of mounting a driven coupling on and dismounting it from a roll neck. The drive mechanism comprises a drive shaft section comprising inner and outer shafts coupled together in such a manner as to be only axially slidable, an extensible operating mechanism disposed between the inner and outer shafts for extending and collapsing the drive shaft section to mount the coupling on and dismount it from the neck of a working roll, a spring disposed between the inner and outer shafts and acting in a direction in which it reduces the length of the drive shaft section, and fixing device for fixing the drive shaft section to a drive universal joint when the drive shaft section is reduced in length.

Abstract: The invention relates to a train of gears housed within a gear box and designed for driving the lower straightening rolls of a feeding and straightening machine. The gears in the gear box are disposed in staggered relation in adjacent parallel planes and each drive gear is journalled by a drive shaft having a coupling connection to a straightening roll. The staggered arrangement of the drive gears is an important feature since the drive gears have pitch diameters greater than the center to center distance between adjacent straightening rolls. In addition to staggering the drive gears the invention provides idler gears which are interposed between adjacent drive gears, with one idler gear in one plane receiving the drive and the other idler gear in the adjacent parallel plane transmitting the drive.

Abstract: Multi-stand rolling mill with a device for protection against overloads due to irregularities in the feed of the rolled product, comprising a kinematic chain for transmitting motion to the stands from at least one drive means, with an individual drive shaft for each stand and a coupling between each of the drive shafts and the respective rolling stand. The couplings are electromagnetic couplings. Detector means are provided for detecting irregularities in the rolled product feed. The latter are associated with at least one of the stands, preferably the last and are operatively connected to at least one group of the couplings, and preferably all, to simultaneously operate the group of couplings, and preferably all the couplings, to cause all the rolling stands to be simultaneously disconnected from the kinematic chain.

Abstract: A tensioning apparatus for metal strip, e.g. for advancing the metal strip through a processing station, for stretching the metal strip, or the like, comprises at least two sets of rolls (bridles) each comprising a pair of rolls in spaced apart relationship with the strip extending between the sets and over and under shooting respective rolls thereof. The drive system comprises a drive motor connected to one of the rolls of one of the sets (bridles) through a superimposing transmission (e.g. a three-element differential), one element of which is connected to the motor, another element of which is connected to the roll and a third element of which is connected by a shaft to a corresponding roll of the other pair via a similar three-element superimposition transmission. Another element of the latter transmission is connected to the roll of this other pair while a hydraulic motor is connected to the third element.

Abstract: In a rolling mill it is desirable that the torques delivered by the two driven rolls should be the same or at least there should be some predetermined torque differential between them. The torque transmitted by each of the driven rolls is measured and a measure of the difference between the torques is obtained. Said measure is then used to adjust the angular length of that part of the periphery of at least one roll where it is in contact with the workpiece being rolled in the sense to bring about the required torque distribution.The angular length may be adjusted by varying the angle of approach or exit of the workpiece relative to the mill rolls.

Abstract: The disclosure of the present invention relates to a torque and mass compensating counterweight system employed with the drive of a cold pilger rolling mill. The counterweight is connected directly to the crank by a sliding block, displaceable in a slot provided in the counterweight, in which the counterweight is arranged to reciprocate 90.degree. out of phase with the crank and is arranged in guides to move in a plane parallel to the direction of movement of the mill.

Abstract: The invention covers a group gear for the rollers of individual stands, driven by a motor via one common main drive shaft, of a continuous rolling mill, particularly for a wire manufacturing block where the secondary drive speed is picked up by the main drive shaft via the respective bevel gear stage, and then transmitted to the rolling mill shafts.

Abstract: A rolling mill comprising a movable mill stand mounted in slideways and enclosing grooved mill rolls whose necks are coupled with a hydraulic drive and with gear wheels in mesh with each other. A drive for reciprocating said movable mill stand is equipped with at least two linear inductors installed immovably and at least two electrically conductive bars connected rigidly to movable mill stand separators and braces. The bars are adapted to move intermediate of said inductors and have a length exceeding that of said inductors and begin of a value of at the maximum transfer of said movable mill stand. By establishing inductive currents and, hence, electromagnetic forces in the bars, the inductors develop through said bars pulling or pushing forces acting on said movable mill sand sufficient to provide a requisite roll force. The mill roll hydraulic drive is an auxiliary one.