<titlePart> <text>SECTION B <emdash/> PERFORMING OPERATIONS</text> </titlePart> <titlePart> <text>TRANSPORTING</text> </titlePart> LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION Method General operations by centrifugal force, using centrifuges or free-vortex apparatus using magnetic or electrostatic effect Apparatus General operations by centrifugal force, using centrifuges or free-vortex apparatus , using magnetic or electrostatic effect SOLID/LIQUID OR SOLID/GAS SEPARATION Method General operations by centrifugal force using centrifuges or free-vortex apparatus using magnetic or electrostatic effect Apparatus General operations by centrifugal force using centrifuges or free-vortex apparatus , using magnetic or electrostatic effect SOLID/SOLID SEPARATION Method Dry methods material in bulk Individual sorting Screening, sifting, pneumatic sorting using pneumatic tables or jigs by magnetic or electrostatic effect by centrifugal force using centrifuges or free-vortex apparatus Wet methods General operations flotation, differential sedimentation screening Combinations Dry methods - wet methods Apparatus Dry methods material in bulk Individual sorting Screening, sifting, pneumatic sorting using pneumatic tables or jigs by magnetic or electrostatic effect by centrifugal force using centrifuges or free-vortex apparatus , Wet methods General operations flotation, differential sedimentation screening Combinations Dry methods - wet methods <titlePart> <text>SHAPING</text> </titlePart> <titlePart> <text>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL</text> </titlePart> <titlePart> <text>PUNCHING METAL</text> <entryReference>casting, powder metallurgy <sref ref="B22"/></entryReference> <entryReference>shearing <sref ref="B23D"/></entryReference> <entryReference>working of metal by the action of a high concentration of electric current <sref ref="B23H"/></entryReference> <entryReference>soldering, welding, flame-cutting <sref ref="B23K"/></entryReference> <entryReference>other working of metal <sref ref="B23P"/></entryReference> <entryReference>punching sheet material in general <sref ref="B26F"/></entryReference> <entryReference>processes for changing of physical properties of metals <sref ref="C21D"/>, <sref ref="C22F"/></entryReference> <entryReference>electroforming <sref ref="C25D0001000000"/></entryReference> </titlePart> This class does not cover: combinations of operations covered by different subclasses of class , which are covered by subclass ; combinations of operations covered by any particular subclass of class with operations covered by other classes, e.g. with operations involving removal of material, which are also covered by subclass , except that if the operations covered by the other classes are subsidiary to the operations properly covered by a single subclass of the combination is classified in that subclass. Processes of a kind covered by this class but applied to non-metallic materials are classified in this class if they are applicable to metal and cannot be classified fully in another class. <titlePart> <text>ROLLING OF METAL</text> <entryReference>auxiliary operations used in connection with metal-working operations covered in <sref ref="B21"/>, <u>see</u><sref ref="B21C"/></entryReference> <entryReference>bending by rolling <sref ref="B21D"/></entryReference> <entryReference>manufacture of particular objects, e.g. screws, wheels, rings, barrels, balls, by rolling <sref ref="B21H"/></entryReference> <entryReference>pressure welding by means of a rolling mill <sref ref="B23K0020040000"/></entryReference> </titlePart> In this subclass, the following terms or expressions are used with the meanings indicated: "rolling" means rolling operations in which plastic deformations occur; "continuous process" means a process employing a mill train designed to have the workpiece enter one pair of rolls before leaving the preceding pair. METAL ROLLING IN GENERAL General methods or apparatus , , , Control or handling , , , , Safety, cooling, maintenance , , Details of rolling mills , , METAL ROLLING UNDER SPECIAL CONDITIONS AUXILIARY OPERATIONS PERFORMED IN CONNECTION WITH METAL ROLLING , , ROLLING SPECIAL ALLOYS ROLLING TO PRODUCE PARTICULAR SHAPES Tubes rolling methods mandrels, accessories Extending closed shapes SUBJECT MATTER NOT PROVIDED FOR IN OTHER GROUPS OF THIS SUBCLASS <titlePart> <text>Metal rolling methods or mills for making semi-finished products of solid or profiled cross-section</text> <entryReference><mref ref="B21B0017000000" endRef="B21B0023000000"/> take precedence</entryReference> <entryReference>with respect to composition of material to be rolled <sref ref="B21B0003000000"/></entryReference> <entryReference>extending closed shapes of metal bands by simultaneous rolling at two or more zones <sref ref="B21B0005000000"/></entryReference> <entryReference>metal-rolling stands as units <sref ref="B21B0013000000"/></entryReference> <entryReference>continuous casting into moulds having walls formed by moving rolls <sref ref="B22D0011060000"/></entryReference> </titlePart> <titlePart> <text>Sequence of operations in milling trains</text> </titlePart> <titlePart> <text>Layout of rolling-mill plant, e.g. grouping of stands</text> </titlePart> <titlePart> <text>Succession of passes or of sectional pass alternations</text> </titlePart> <titlePart> <text>for rolling heavy work, e.g. ingots, slabs, billets, in which the cross-sectional form is unimportant</text> </titlePart> <titlePart> <text>in a continuous process</text> </titlePart> <titlePart> <text>in a non-continuous process</text> </titlePart> <titlePart> <text>for rolling work of special cross-section, e.g. angle steel</text> <entryReference>rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects <sref ref="B21H0008000000"/></entryReference> </titlePart> <titlePart> <text>Piling sections having lateral edges specially adapted for interlocking with each other in order to build a wall</text> </titlePart> <titlePart> <text>Rail sections</text> </titlePart> <titlePart> <text>H- or I-sections</text> </titlePart> <titlePart> <text>L-sections</text> </titlePart> <titlePart> <text>T-sections</text> </titlePart> <titlePart> <text>U- or channel sections</text> </titlePart> <titlePart> <text>Z-sections</text> </titlePart> <titlePart> <text>in a single two-high or universal rolling mill</text> </titlePart> <titlePart> <text>in a continuous process</text> </titlePart> <titlePart> <text>in a non-continuous process</text> </titlePart> <titlePart> <text>for rolling wire or material of like small cross-section</text> </titlePart> <titlePart> <text>in a continuous process</text> </titlePart> <titlePart> <text>in a non-continuous process</text> </titlePart> <titlePart> <text>for rolling bands or sheets of indefinite length</text> <entryReference><sref ref="B21B0001420000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>in a continuous process</text> </titlePart> <titlePart> <text>by hot-rolling</text> </titlePart> <titlePart> <text>by cold-rolling</text> </titlePart> <titlePart> <text>in a non-continuous process</text> </titlePart> <titlePart> <text>in reversing mills, e.g. with intermediate storage reels for accumulating work</text> </titlePart> <titlePart> <text>by hot-rolling</text> </titlePart> <titlePart> <text>by cold-rolling</text> </titlePart> <titlePart> <text>for rolling sheets of limited length, e.g. folded sheets, superimposed sheets</text> <entryReference><sref ref="B21B0001400000"/> takes precedence</entryReference> <entryReference>folding sheets before, or separating layers after, rolling <sref ref="B21B0047000000"/></entryReference> </titlePart> <titlePart> <text>for rolling foils which present special problems, e.g. because of thinness</text> </titlePart> <titlePart> <text>for step-by-step or planetary rolling</text> <entryReference>making tubes by pilgrim-step rolling <sref ref="B21B0021000000"/></entryReference> </titlePart> <titlePart> <text>for rolling metal immediately subsequent to continuous casting</text> <entryReference>metal-rolling stands <sref ref="B21B0013220000"/></entryReference> <entryReference>continuous casting <sref ref="B22D0011000000"/>, e.g. into moulds with rolls <sref ref="B22D0011060000"/></entryReference> </titlePart> <titlePart> <text>Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences</text> <entryReference>altering special metallurgical properties of alloys, other than structure consolidation or mechanical properties resulting therefrom <sref ref="C21D"/>, <sref ref="C22F"/></entryReference> </titlePart> <titlePart> <text>Rolling special iron alloys</text> </titlePart> <titlePart> <text>Extending closed shapes of metal bands by rolling</text> <entryReference>manufacture of circular shapes, e.g. wheel rims, <sref ref="B21H0001060000"/></entryReference> </titlePart> <titlePart> <text>Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work</text> </titlePart> <titlePart> <text>Special measures for removing fumes from rolling mills</text> </titlePart> <titlePart> <text>Subsidising the rolling processes by subjecting rollers or work to vibrations</text> </titlePart> <titlePart> <text>Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories</text> <entryReference><mref ref="B21B0017000000" endRef="B21B0023000000"/> take precedence</entryReference> <entryReference>details, component parts, accessories, auxiliary means, procedures in connection with metal rolling, <u>see</u> the relevant groups</entryReference> </titlePart> <titlePart> <text>with axes of rolls arranged horizontally</text> </titlePart> <titlePart> <text>Three-high arrangement</text> </titlePart> <titlePart> <text>with axes of rolls arranged vertically</text> </titlePart> <titlePart> <text>with differently-directed roll axes, e.g. for the so-called "universal" rolling process</text> </titlePart> <titlePart> <text>all axes being arranged in one plane</text> </titlePart> <titlePart> <text>axes being arranged in different planes</text> </titlePart> <titlePart> <text>having counter-pressure devices acting on rolls to inhibit deflection of same under load</text> <entryReference>counter-pressure devices as such <sref ref="B21B0029000000"/></entryReference> </titlePart> <titlePart> <text>with alternatively operative rolls</text> </titlePart> <titlePart> <text>for step-by-step or planetary rolling</text> <entryReference>methods <sref ref="B21B0001420000"/></entryReference> <entryReference>making tubes by pilgrim-step rolling <sref ref="B21B0021000000"/></entryReference> </titlePart> <titlePart> <text>for planetary rolling</text> </titlePart> <titlePart> <text>for rolling metal immediately subsequent to continuous casting</text> <entryReference>methods therefor <sref ref="B21B0001460000"/></entryReference> <entryReference>continuous casting <sref ref="B22D0011000000"/>, e.g. into moulds with rolls <sref ref="B22D0011060000"/></entryReference> </titlePart> <titlePart> <text>Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills</text> </titlePart> <titlePart> <text>in which work is subjected to permanent internal twisting, e.g. for producing reinforcement bars for concrete</text> </titlePart> <titlePart> <text>Rolling methods or mills specially designed for making or processing tubes</text> <entryReference>control of tube rolling <sref ref="B21B0037780000"/></entryReference> </titlePart> <titlePart> <text>Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling</text> </titlePart> <titlePart> <text>with mandrel</text> <entryReference><sref ref="B21B0017080000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>in a continuous process</text> </titlePart> <titlePart> <text>in a discontinuous process</text> </titlePart> <titlePart> <text>with mandrel having one or more protrusions</text> </titlePart> <titlePart> <text>in a continuous process</text> </titlePart> <titlePart> <text>in a discontinuous process</text> </titlePart> <titlePart> <text>without mandrel</text> </titlePart> <titlePart> <text>Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work</text> <entryReference>straightening by rollers <sref ref="B21D"/></entryReference> </titlePart> <titlePart> <text>the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling</text> </titlePart> <titlePart> <text>Rolling basic material of solid, i.e. non-hollow, structure</text> </titlePart> <titlePart> <text>Piercing</text> </titlePart> <titlePart> <text>Rolling hollow basic material</text> <entryReference><sref ref="B21B0019040000"/> takes precedence</entryReference> <entryReference>separating work from mandrel <sref ref="B21C0045000000"/></entryReference> </titlePart> <titlePart> <text>Enlarging tube diameter</text> </titlePart> <titlePart> <text>Finishing, e.g. smoothing, sizing</text> </titlePart> <titlePart> <text>the axes of the rollers being arranged essentially parallel to the axis of the work</text> </titlePart> <titlePart> <text>Rolling tubes by means of additional rollers arranged inside the tubes</text> </titlePart> <titlePart> <text>Rolling tubes without additional rollers arranged inside the tubes</text> </titlePart> <titlePart> <text>Pilgrim-step tube-rolling</text> </titlePart> <titlePart> <text>Rollers therefor</text> </titlePart> <titlePart> <text>Pilgrim-step feeding mechanisms</text> <entryReference><sref ref="B21B0021060000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>Devices for revolving work between the steps</text> </titlePart> <titlePart> <text>Tube-rolling not restricted to methods provided for in only one of groups <mref ref="B21B0017000000" endRef="B21B0021000000"/>, e.g. combined processes</text> <entryReference><sref ref="B21B0025000000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group <sref ref="B21B0017000000"/></text> </titlePart> <titlePart> <text>Accessories or auxiliary means therefor</text> </titlePart> <titlePart> <text>Guides, supports, or abutments for mandrels, e.g. carriages</text> </titlePart> <titlePart> <text>Adjusting devices for mandrels</text> </titlePart> <titlePart> <text>Cooling or lubricating mandrels during operation</text> </titlePart> <titlePart> <text>Interchanging mandrels</text> </titlePart> <titlePart> <text>Rolls</text> <entryReference>shape of working surfaces required by special processes <sref ref="B21B0001000000"/></entryReference> </titlePart> <titlePart> <text>Lubricating, cooling or heating rolls while in use</text> </titlePart> <titlePart> <text>Shape or construction of rolls</text> <entryReference>for rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects <sref ref="B21H0008020000"/></entryReference> </titlePart> <titlePart> <text>Sleeved rolls</text> </titlePart> <titlePart> <text>with deflectable sleeves</text> </titlePart> <titlePart> <text>Lubricating, cooling, or heating rolls</text> </titlePart> <titlePart> <text>internally</text> </titlePart> <titlePart> <text>externally</text> </titlePart> <titlePart> <text>Maintaining rolls or rolling equipment in effective condition</text> <entryReference>lubricating, cooling or heating rolls while in use <sref ref="B21B0027060000"/></entryReference> </titlePart> <titlePart> <text>Maintaining rolls in effective condition, e.g. reconditioning</text> </titlePart> <titlePart> <text>while in use, e.g. polishing</text> </titlePart> <titlePart> <text>Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls</text> </titlePart> <titlePart> <text>Rolling stand structures</text> </titlePart> <titlePart> <text>Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames</text> </titlePart> <titlePart> <text>Rolling stand frames</text> </titlePart> <titlePart> <text>Roll mountings</text> </titlePart> <titlePart> <text>with tie rods, e.g. prestressed tie rods</text> </titlePart> <titlePart> <text>Fastening stands or frames to foundation, e.g. to the sole plate</text> <entryReference>in general <sref ref="F16M"/></entryReference> </titlePart> <titlePart> <text>Adaptation of roll bearings</text> <entryReference>bearings in general <sref ref="F16C"/></entryReference> </titlePart> <titlePart> <text>Interchanging rolls, roll mountings, or stand frames</text> </titlePart> <titlePart> <text>by horizontally displacing</text> </titlePart> <titlePart> <text>by vertically displacing</text> </titlePart> <titlePart> <text>by pivotally displacing</text> </titlePart> <titlePart> <text>Adjusting rolls</text> <entryReference>control devices <sref ref="B21B0037000000"/></entryReference> </titlePart> <titlePart> <text>by moving rolls axially</text> </titlePart> <titlePart> <text>by moving rolls perpendicularly to roll axis</text> </titlePart> <titlePart> <text>mechanically</text> </titlePart> <titlePart> <text>by screws</text> </titlePart> <titlePart> <text>Adjusting eccentrically-mounted roll bearings</text> </titlePart> <titlePart> <text>by toggle-lever mechanisms</text> </titlePart> <titlePart> <text>by wedges or their equivalent</text> </titlePart> <titlePart> <text>by liquid pressure</text> </titlePart> <titlePart> <text>Safety devices not otherwise provided for</text> <entryReference>safety devices in general <sref ref="F16P"/></entryReference> </titlePart> <titlePart> <text>Breaker blocks</text> </titlePart> <titlePart> <text>Devices for freeing jammed rolls</text> </titlePart> <titlePart> <text>Preventing fracture of rolls</text> </titlePart> <titlePart> <text>Drives for metal-rolling mills</text> </titlePart> <titlePart> <text>for continuously-operating mills</text> <entryReference><sref ref="B21B0035100000"/>, <sref ref="B21B0035120000"/> take precedence</entryReference> </titlePart> <titlePart> <text>each stand having its own motor or motors</text> </titlePart> <titlePart> <text>for non-continuously-operating mills or for single stands</text> <entryReference><sref ref="B21B0035100000"/>, <sref ref="B21B0035120000"/> take precedence</entryReference> </titlePart> <titlePart> <text>for reversing rolling mills</text> </titlePart> <titlePart> <text>Driving arrangements for rolls which have only a low-power drive</text> </titlePart> <titlePart> <text>Driving arrangements for rolls which receive power from the shaft of another roll</text> </titlePart> <titlePart> <text>Toothed-wheel gearings specially adapted for metal-rolling mills</text> </titlePart> <titlePart> <text>Housings or mountings therefor</text> </titlePart> <titlePart> <text>Couplings, driving spindles, or spindle carriers specially adapted for or specially arranged in metal-rolling mills</text> <entryReference>couplings or shafts in general <sref ref="F16"/></entryReference> </titlePart> <titlePart> <text>Control devices or methods specially adapted for metal-rolling mills or the work produced thereby</text> <entryReference>methods or devices for measuring specially adapted for metal-rolling mills <sref ref="B21B0038000000"/></entryReference> </titlePart> <titlePart> <text>Control of thickness, width, diameter or other transverse dimensions</text> <entryReference><sref ref="B21B0037580000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>Automatic gauge control</text> </titlePart> <titlePart> <text>in tandem mills</text> </titlePart> <titlePart> <text>Lateral spread control</text> </titlePart> <titlePart> <text>Width control, e.g. by edge rolling</text> </titlePart> <titlePart> <text>Automatic variation of thickness according to a predetermined programme</text> </titlePart> <titlePart> <text>for obtaining one strip having successive lengths of different constant thickness</text> </titlePart> <titlePart> <text>Control of flatness or profile during rolling of strip, sheets or plates</text> </titlePart> <titlePart> <text>using roll camber control</text> </titlePart> <titlePart> <text>by cooling, heating or lubricating the rolls</text> </titlePart> <titlePart> <text>by hydraulic expansion of the rolls</text> </titlePart> <titlePart> <text>by radial displacement of the roll sleeve on a stationary roll beam by means of hydraulic supports</text> </titlePart> <titlePart> <text>using roll bending</text> <entryReference><sref ref="B21B0037420000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>using axial shifting of the rolls</text> <entryReference><sref ref="B21B0037420000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>using a combination of roll bending and axial shifting of the rolls</text> </titlePart> <titlePart> <text>using heating, lubricating or water-spray cooling of the product</text> </titlePart> <titlePart> <text>Roll speed or drive motor control</text> <entryReference><sref ref="B21B0037520000"/>, <sref ref="B21B0037600000"/> take precedence</entryReference> </titlePart> <titlePart> <text>Tension control</text> </titlePart> <titlePart> <text>Compression control</text> </titlePart> <titlePart> <text>by looper control</text> </titlePart> <titlePart> <text>by drive motor control</text> </titlePart> <titlePart> <text>including coiler drive control, e.g. reversing mills</text> </titlePart> <titlePart> <text>Elongation control</text> </titlePart> <titlePart> <text>Roll-force control</text> </titlePart> <titlePart> <text>Roll-gap control</text> </titlePart> <titlePart> <text>by control of a motor which drives an adjusting screw</text> </titlePart> <titlePart> <text>by control of a hydraulic adjusting device</text> </titlePart> <titlePart> <text>Mill spring or roll spring compensation systems, e.g. control of prestressed mill stands</text> </titlePart> <titlePart> <text>Roll eccentricity compensation systems</text> </titlePart> <titlePart> <text>Camber or steering control for strip, sheets or plates, e.g. preventing meandering</text> </titlePart> <titlePart> <text>Length control</text> <entryReference><sref ref="B21B0037560000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>Rear end control</text> </titlePart> <titlePart> <text>Front end control</text> </titlePart> <titlePart> <text>Temperature control, e.g. by cooling or heating the rolls or the product</text> <entryReference><sref ref="B21B0037320000"/>, <sref ref="B21B0037440000"/> take precedence</entryReference> </titlePart> <titlePart> <text>Cooling control on the run-out table</text> </titlePart> <titlePart> <text>Control of tube rolling</text> </titlePart> <titlePart> <text>Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product</text> </titlePart> <titlePart> <text>for measuring flatness or profile of strips</text> </titlePart> <titlePart> <text>for measuring thickness, width, diameter or other transverse dimensions of the product</text> </titlePart> <titlePart> <text>for measuring tension or compression</text> </titlePart> <titlePart> <text>for measuring roll-force</text> </titlePart> <titlePart> <text>for measuring roll-gap, e.g. pass indicators</text> </titlePart> <titlePart> <text>for measuring roll camber</text> </titlePart> <titlePart> <text>Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills</text> <entryReference>guiding, conveying, or accumulating easily-flexible work in loops or curves <sref ref="B21B0041000000"/></entryReference> <entryReference>specially associated with cooling-beds <sref ref="B21B0043000000"/></entryReference> <entryReference>conveying or transporting in general <sref ref="B65G"/></entryReference> </titlePart> <titlePart> <text>Feeding or supporting work</text> </titlePart> <titlePart> <text>Braking or tensioning arrangements</text> </titlePart> <titlePart> <text>Lifting or lowering work for conveying purposes, e.g. tilting tables arranged immediately in front of or behind the pass</text> <entryReference>turn-over or like manipulating means as such <sref ref="B21B0039200000"/></entryReference> </titlePart> <titlePart> <text>Pushing or forcing work into pass</text> </titlePart> <titlePart> <text>Braking or tensioning arrangements</text> </titlePart> <titlePart> <text>Arrangement or installation of feeding rollers in rolling stands</text> </titlePart> <titlePart> <text>Arrangement or installation of roller tables in relation to a roll stand</text> </titlePart> <titlePart> <text>Guiding, positioning or aligning work</text> <entryReference><sref ref="B21B0043120000"/> takes precedence</entryReference> <entryReference>guides in which work is subjected to permanent internal twisting <sref ref="B21B0015020000"/></entryReference> </titlePart> <titlePart> <text>immediately before entering or after leaving the pass</text> </titlePart> <titlePart> <text>Switches for directing work in metal-rolling mills or trains</text> </titlePart> <titlePart> <text>Revolving, turning-over, or like manipulation of work</text> <entryReference>guides in which work is subjected to permanent internal twisting <sref ref="B21B0015020000"/></entryReference> </titlePart> <titlePart> <text>by tipping, e.g. by lifting one side by levers or wedges</text> <entryReference><sref ref="B21B0039260000"/>, <sref ref="B21B0039280000"/> take precedence</entryReference> </titlePart> <titlePart> <text>by tongs or grippers</text> </titlePart> <titlePart> <text>by members, e.g. grooved, engaging opposite sides of the work and moved relatively to each other to revolve the work</text> </titlePart> <titlePart> <text>by means of guide members shaped to revolve the work during its passage</text> </titlePart> <titlePart> <text>by lodging it in a rotating ring manipulator or ring segment manipulator</text> </titlePart> <titlePart> <text>Devices specially adapted for turning sheets</text> </titlePart> <titlePart> <text>Arrangements or constructional combinations specifically designed to perform functions covered by more than one of groups <sref ref="B21B0039020000"/>, <sref ref="B21B0039140000"/>, <sref ref="B21B0039200000"/></text> </titlePart> <titlePart> <text>Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves</text> </titlePart> <titlePart> <text>Loop lifters</text> </titlePart> <titlePart> <text>Returning work to repeat the pass or passes</text> </titlePart> <titlePart> <text>above or underneath the rolling stand or rolls</text> </titlePart> <titlePart> <text>in which the direction of movement of the work is turned through approximately 180<degree/></text> </titlePart> <titlePart> <text>without overall change in the general direction of movement of the work</text> </titlePart> <titlePart> <text>Loop deflectors</text> </titlePart> <titlePart> <text>Arrangements of interest only with respect to provision for indicating or controlling operations</text> </titlePart> <titlePart> <text>Cooling beds, whether stationary or moving</text> </titlePart> <titlePart> <text>Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed</text> <entryReference>conveying means in general <sref ref="B65G"/></entryReference> </titlePart> <titlePart> <text>Cooling beds comprising rakes or bars</text> <entryReference><sref ref="B21B0043100000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>Cooling beds comprising rolls or worms</text> </titlePart> <titlePart> <text>Cooling beds comprising carriages</text> <entryReference><sref ref="B21B0043080000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>Cooling beds comprising revolving drums or recycling chains</text> </titlePart> <titlePart> <text>Cooling beds with other work-shifting elements projecting through the bed</text> </titlePart> <titlePart> <text>Devices for positioning workpieces "flushed", i.e. with all their axial ends arranged in line on cooling beds or on co-operating conveyers</text> </titlePart> <titlePart> <text>Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills</text> <entryReference><sref ref="B21B0015000000"/> takes precedence</entryReference> <entryReference>technical features of scaling-off devices <sref ref="B21C0043000000"/></entryReference> </titlePart> <titlePart> <text>for lubricating, cooling, or cleaning</text> </titlePart> <titlePart> <text>for de-scaling</text> </titlePart> <titlePart> <text>of strip material</text> <entryReference><sref ref="B21B0045080000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>hydraulically</text> </titlePart> <titlePart> <text>Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal</text> <entryReference>soaking pits <sref ref="C21D0009700000"/></entryReference> </titlePart> <titlePart> <text>for folding sheets before rolling</text> </titlePart> <titlePart> <text>for separating layers after rolling</text> </titlePart> <titlePart> <text>Subject matter not provided for in other groups of this subclass</text> </titlePart>