The present invention provides an inbred corn line designated FX8609, methods for producing a corn plant by crossing plants of the inbred line FX8609 with plants of another corn plant. The invention further encompasses all parts of inbred corn line FX8609, including culturable cells. Additionally provided herein are methods for introducing transgenes into inbred corn line FX8609, and plants produced according to these methods.

The present invention provides an inbred corn line designated MFX7589, methods for producing a corn plant by crossing plants of the inbred line MFX7589 with plants of another corn plant. The invention further encompasses all parts of inbred corn line MFX7589, including culturable cells. Additionally provided herein are methods for introducing transgenes into inbred corn line MFX7589, and plants produced according to these methods.

A method of mixing together liquids or liquid/solid combinations, and mixing apparatus/universal combine utilizing a vertical spinning container or vessel having a rib, or a cross rib in its bottom wall. The container is spun about a vertical axis with no wobbling component to the motion. Meshed elements are used for high shear mixing. Start/stop routines, and variable acceleration/speed values are used, to facilitate complete mixing. Use of ‘impeller’ blade stirrers is completely eliminated.

A method and system for providing a homogenized slurry output comprises a container body defining an interior portion, a discharge for supplying the slurry from the container body to a downstream source and at least one inlet in fluid communication with a pressurized supply of slurry for introducing the slurry into the interior portion of the container body in a circulation pattern that creates a homogenized mixture of slurry in the interior portion of the body.

A mixer system includes a mixing chamber with a drive panel, open top, discharge opening in a side of the mixing chamber, and door configured to open and close the discharge opening. A first mixing auger is disposed inside the mixing chamber, and a first auger drive is disposed on another side of the drive panel and connected to the first auger through the drive panel and connected to a driveline. A second mixing auger is disposed inside the mixing chamber on the first side of the drive panel, and another auger drive is connected to the second auger through the drive panel. A clutch is connected between the second auger drive and the driveline and configured to mechanically connect and disconnect the second auger drive from the driveline based on an input. A method of sequentially starting different augers within a mixing chamber is provided.

A machine for continuous casting of pre-mortared masonry panels includes a rotatable continuous mold for continuously forming pre-mortared masonry panels and an application system for applying polymeric material to the continuous mold as the continuous mold rotates. The machine also includes a brick setter system for setting bricks onto the polymeric material as the continuous mold rotates. The machine further includes a cutting device for cutting the bricks and polymeric material into panels to form the pre-mortared masonry panels.

An apparatus for swirling wine within a wine glass or a decanter, or for moving a liquid within a container. A driver is mounted to move a driving element with respect to a housing. A base for holding or removably attaching the glass, the decanter or the container, is moveably mounted with respect to the housing. A receiver and a connector are moveably mounted with respect to each other and with respect to the housing. When the driver moves the base, the base and thus the container follow a path defined by movement of the connector with respect to the receiver. When the glass, the decanter or the other container is mounted with respect to the base, the base moves the glass, the decanter or the container to impart a swirling motion of wine or another liquid within the glass, the decanter or the container.

A container (10, 30, 50) is provided for single- or multi-component molding materials. The container has a container body (12, 32, 52) having a constant outer contour in a longitudinal extent of the container (10, 30, 50), a piston (17, 37) movable in the longitudinal direction, and a cover (11, 31) having an outlet opening (13, 33, 53). A volume for a molding material is defined between the piston (17, 37) and the cover (11, 31), the volume being variable in the direction of the longitudinal extent of the container (10, 30, 50). The container distinguishes itself in that the container body (12, 32, 52) is rotatable relative to the outlet opening (13, 33, 53), and the piston (17, 37) thereby pushes out the content of the container (10, 30, 50).

A mixing and kneading machine (1) for continual compounding comprises a screw shaft (3) rotating in a casing (2) and simultaneously moving axially translationally. To sustainably enhance the efficiency of the machine as regards its material thruput per unit of time the screw shaft (3) comprises at least four groups of radial screw vanes (4a, 4b, 4c, 4d) evenly distributed circumferentially, each group consisting of a plurality of screw vanes in axial sequence. The outer diameter (Da) of the screw shaft ranges from 400 to 800 millimeters. The rotary speed of the screw shaft (3) ranges from 30 to 80 rpm. A mixing and kneading machine (1) engineered as such is particularly suitable for compounding an anodic mass in the production of electrodes—anodes—for the aluminum industry.

A treatment element to treat material in a multi-shaft worm machine has an outer contour with at least one outer contour portion, the associated evolute of which is a quantity of at least three points, each of the points lying outside the longitudinal axis and within the outer radius of the treatment element and two respective adjacent points having a spacing from one another, which is less than half the core radius. The treatment element ensures high flexibility during the adjustment of shear and/or extensional flows on the material to be treated.

Tracers for imaging distribution of reactive oxygen species (ROS) are disclosed. The tracers include radiolabeled dihydroethidine (DHE) analogues. Further disclosed are uses of the compounds, including methods of imaging tissue distribution of ROS in vivo by positron emission tomography (PET). Methods of synthesizing the compounds are also disclosed.

A description is given of N-(1,2,5-oxadiazol-3-yl)pyridinecarboxamides of the general formula (I) as herbicides. R in this formula (I) stands for radicals such as hydrogen, organic radicals, and other radicals such as halogen. W stands for a substituted pyridyl radical.

The present invention is directed to ethanamine compounds, pharmaceutical compositions comprising the same, and methods of treating depression by administering the ethanamine compound.

The present invention relates to novel synthetic substituted heterocyclic compounds and pharmaceutical compositions containing the same that are capable of inhibiting or antagonizing a family of receptor tyrosine kinases, Tropomysosin Related Kinases (Trk), in particular the nerve growth factor (NGF) receptor, TrkA. The invention further concerns the use of such compounds in the treatment and/or prevention of pain, cancer, restenosis, atherosclerosis, psoriasis, thrombosis, or a disease, disorder or injury relating to dysmyelination or demyelination or the disease or disorder associated with abnormal activities of NGF receptor TrkA.

The present disclosure relates to Oxime-Substituted Quinoxaline-Type Piperidine Compounds, such as those of Formula (I): and the pharmaceutically acceptable salts and solvates thereof, wherein R1, R2, R3, R4, R20, R21, Q, Y1, Z, A, B, and a are as defined herein; compositions comprising an effective amount of an Oxime-Substituted Quinoxaline-Type Piperidine Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of an Oxime-Substituted Quinoxaline-Type Piperidine Compound.

The present invention is directed to a compound of Formula (I) and to pharmaceutical compositions comprising compounds of Formula (I). Methods of making and using the compounds of Formula (I) are also within the scope of the invention.

The present invention features compounds having the Formula (Ia) and (Ib) (e.g., a compound of any of Formulas ((Ia-2)-(Ia-21)), including other tautomers, stereoisomers, E/Z stereoisomers, prodrugs, pharmaceutically acceptable salts, and compositions thereof. The invention also features methods for treating or preventing pain (e.g., neuropathic pain), inflammation, or epilepsy in a patient by administering an effective amount of a compound of Formula (Ia) or (Ib). The invention also features a method for treating or preventing pain (e.g., neuropathic pain), inflammation, or epilepsy in a patient that includes administering to a patient in need thereof an effective amount of a compound of Formula (IIa) or (IIb) (e.g., a compound of any of Formulas ((IIa-2)-(IIa-6)). The compounds described herein (e.g., a compound of Formulas (Ia), (Ib), (IIa), or (IIb)) can also be used as anticonvulsants.

The invention is directed to novel substituted benzylamino quinolines, compounds comprising substituted benzylamino quinolines, methods of making substituted benzylamino quinolines, the use of substituted benzylamino quinolines for treating or preventing a variety of conditions or diseases associated with lipoprotein metabolism, and the use of substituted benzylamino quinolines as cholesterol ester-transfer protein inhibitors.

Cyanine dye compounds having a substituted methine moiety that are nucleic acid stains, particularly for fluorescent staining of RNA, including compounds having the formula where R1 is a C1-C6 alkyl, sulfoalkyl, carboxyalkyl or C1-C6 alkoxy; each R2 is independently selected from the group consisting of H, C1-C6 alkyl, C1-C6 alkoxy, fused benzo, trifluoromethyl, amino, sulfo, carboxy and halogen, that is optionally further substituted; at least one of R3, R4, and R5 is an alkyl, aryl, heteroaryl, cyclic, or heterocyclic moiety that is optionally substituted by alkyl, amino, aminoalkyl, carboxy, nitro, or halogen; and the remaining R3, R4 or R5 are hydrogen; X is S, O, or Se; and D is a substituted or unsubstituted pyridinium, quinolinium or benzazolium moiety.

The present invention relates to the use of selective adenosine A1 agonists, in particular the dicyanopyridines of formula (I), for the treatment and/or prophylaxis of glaucoma and ocular hypertension as well as the their use for the production of a medicament for the treatment and/or prophylaxis of glaucoma and ocular hypertension.

The invention provides a chemical entity of Formula (I) wherein R1, R2, R3, R4, Y and Z have any of the values described herein, and compositions comprising such chemical entities; methods of making them; and their use in a wide range of methods, including metabolic and reaction kinetic studies, detection and imaging techniques, and radioactive treatments; and therapies, including inhibiting PDE4, enhancing neuronal plasticity, treating neurological disorders, providing neuroprotection, treating a cognitive impairment associated with a CNS disorder, enhancing the efficiency of cognitive and motor training, providing neurorecovery and neurorehabilitation, enhancing the efficiency of non-human animal training protocols, and treating peripheral disorders, including inflammatory and renal disorders.

A platinum complex of a formula (I): whereR1 and R2 are each fluoroalkyl,X is C—H or nitrogen, andL1 is a bidentate, nitrogen-containing heteroaromatic ligand.

The invention provides novel inhibitors of IAP that are useful as therapeutic agents for treating malignancies where the compounds have the general formula I: wherein A, Q, X1, X2, Y, R1, R2, R3, R4, R4', R5, R6 and R6' are as described herein.

An objective of the present invention is to provide a process for producing 4-carbonyl oxyquinoline derivatives useful as agricultural and horticultural pesticides and fungicides. The objective can be attained by a process for producing 4-carbonyl oxyquinoline derivatives represented by general formula (1), the process including reacting a quinolone derivative with a halogenated compound or an acid anhydride in the presence of a phase transfer catalyst and a base.

The present invention relates to electronic devices, in particular organic electroluminescent devices, comprising compounds of the formula (1), and the corresponding compounds.

The invention provides a chemical entity of Formula (I) wherein R1, R2, R3, Y, and n have any of the values described herein and compositions comprising such chemical entities; methods of making them; and their use in a wide range of methods, including metabolic and reaction kinetic studies, detection and imaging techniques, and radioactive treatments; and therapies, including inhibiting MAO, and MAO-B selectively, enhancing neuronal plasticity, treating neurological disorders, providing neuroprotection, treating a cognitive impairment associated with a CNS disorder, enhancing the efficiency of cognitive and motor training, providing neurorecovery and neurorehabilitation, enhancing the efficiency of non-human animal training protocols, and treating treating peripheral disorders (including obesity, diabetes, and cardiometabolic disorders) and their associated co-morbidities.

The invention relates to a profile-rolling machine for rolling a profile in a blank, wherein the profile-rolling machine has a first and a second profile-rolling jaw. The second profile-rolling jaw (126) is guided—held by a carriage (124)—in a guide track (130) relative to the first profile-rolling jaw (110) for the purpose of rolling the profile into the blank. The carriage (124) has a carriage slide plate (122) and the guide track (130) has a guide slide plate (132). The two slide plates together form a sliding pairing and slide on each other. In order to render said sliding pairing less susceptible to dirty lubricant and less susceptible to wear, it is proposed according to the invention to manufacture the guide slide plate (132) and/or the carriage slide plate (122) at least partially from ceramic or from a non-metallic material or to coat the same with such materials.

A rolling machine comprises parallel guides delimiting a workpiece conveying channel extending from a plurality of per se known rolling tools to a machined workpiece unloading arrangement, wherein, upstream of the workpiece unloading arrangement, one of the channel delimiting guides is operatively coupled to a structural element swingably supported by a pivot pin, the structural element being integral with the piston rod of a cylinder-piston unit slidably driving the structural element together with the channel delimiting guide, thereby providing a side unloading opening for the workpiece.

A honing machine has at least one clamping unit that clamps a workpiece and has a rotary drive for the workpiece. A spindle unit has a stroke drive for an inner honing tool for inner honing of the workpiece. An outer honing device that is movable relative to the workpiece in an axial direction of the workpiece is provided. The outer honing device has several honing stones and an advancing device acting on the honing stones. The honing stones each are advanced in a radial direction relative to the workpiece. The advancing device has at least one linear drive for each one of the honing stones and a common drive motor for all of the linear drives.

A fully symmetric cutter grinding machine with 5-axis includes a grinding machine base and a pillar, sliding rails are vertically arranged on an inside of the pillar, the sliding rails are provided with a grinding wheel head bracket, the grinding wheel head bracket comprises torque motors vertically provided, a lower part of the torque motor is connected to a horizontally provided spindle by means of a bearing of a rotation table, grinding wheels rotating around an axis of the spindle are symmetrically provided at two sides of the spindle, the grinding wheel head bracket further comprises a big rotatable pulley provided at an upper part of the grinding wheel head bracket and driven to rotate by spindle motors, the big pulley is connected to a spindle pulley by a wide synchronous belt.

A combined processing tool includes a shank of a cylindrical shape, a mandrel fixed to the shank, a frame rotation-universally fitted outside the mandrel, a burnishing unit for performing a burnishing to an inner peripheral surface of a workpiece by rolling members, a dimple forming unit for performing a dimple forming to the surface of the workpiece by surface compression members so as to universally appear from and disappear in the frame, a body fixed to a top portion of the shank, and a skiving unit for performing a cutting, wherein, on an outer peripheral region of the mandrel, an outer peripheral surface 31c and a concave and convex shape area which consists of concave parts and convex parts alternately arranged along an outer peripheral direction of the mandrel are formed, and wherein the concave and convex parts are alternately engaged in the compression members with being rotated.

The object of the present invention is to provide a machine for blasting abrasives that has a simple structure and that solves the problem of abrasives falling when the door for the gateway for the work is opened or closed. The machine for blasting abrasives comprises a chamber 11 for processing, a nozzle 13 that is provided within the chamber 11 for shooting the abrasives (shots) S onto the work W, and a jig 15 for holding the work W at a position facing the nozzle 13. A gateway 17 with a door 19 is formed in the ceiling 11a of the chamber 11. The size of the gateway 17 enables the work W to protrude from the chamber 11 by means of the jig 15 at a position corresponding to the jig 15 that is linearly moving up and down. The door 19 is provided within the chamber 11 so as to seal the gateway by linearly moving up and down and so as to create a vacant plane on the gateway for passing the work by horizontally moving.

The engine oil additive contains multiple 300 to 500 nm-long polygonal plate-shaped silver crystal particles. The engine oil contains a base oil and the engine oil additive. The method of adding the additive to an engine oil includes adding multiple 300 to 500-nm-long polygonal plate-shaped silver crystal particles as an additive to the engine oil.

The invention relates to a machine part comprising a first physical component, wherein: the first physical component is configured for moving relative to a second physical component; the first physical component has a first surface with a contact area for physical contact with the second physical component; the first physical component is shaped spatially complementarity to the second physical component at the contact area, and a polyelectrolyte layer is present on the first surface at a location of the contact area. The invention further relates to a machine comprising the present machine part and the second physical component. In addition, the invention relates to the use of a polyelectrolyte layer to reduce the friction between the first physical component and the second physical component, and a rolling-elements bearing.

The refrigerating machine oil of the invention includes an ester of a polyhydric alcohol and a fatty acid, wherein the molar ratio of C4-C6 fatty acid and C7-C9 branched fatty acid in the fatty acid is between 15:85 and 90:10, the C4-C6 fatty acid includes 2-methylpropanoic acid, and the ratio of the total C4-C6 fatty acid and C7-C9 branched fatty acid in the total fatty acids composing the ester is at least 20 mol %. The working fluid composition for a refrigerating machine according to the invention comprises the refrigerating machine oil, a difluoromethane refrigerant and/or an unsaturated fluorinated hydrocarbon refrigerant.

The lubricating base oil of the invention is characterized by satisfying at least one of the following conditions (a) or (b). (a) A saturated compound content of 95% by mass or greater, and a proportion of 0.1-10% by mass of cyclic saturated compounds among the saturated compounds.(b) The condition represented by the following formula (1). 1.435≦n20−0.002×kv100≦1.450 (1) wherein n20 represents the refractive index of the lubricating base oil at 20° C., and kv100 represents the kinematic viscosity (mm2/s) of the lubricating base oil at 100° C.

Corrosion by ammonia/amine salts in hydrocarbon streams such as distillation overhead streams that contain a mineral acid and water can be prevented, avoided or minimized by adding certain strong amines to the streams. The amines have a pKa between about 10.5 to about 12 and include, but are not necessarily limited to, dimethylamine, diethylamine, dipropylamine, diisopropyl-amine, di-n-butylamine, diisobutylamine, di-sec-butylamine, di-tert-butylamine, pyrrolidine, piperidine, and combinations thereof. If the hydrocarbon stream further includes a nitrogen-containing compound such as ammonia, a tramp and/or a residual amine which can form a corrosive salt with the mineral acid, then the added amine is a stronger base than the tramp or residual amine, if present. The amount of added amine is greater than total amount of nitrogen-containing compound, so that any corrosive salts formed are less corrosive than the salts that would otherwise form from the ammonia and/or tramp amine.

Lubrication additives of the current invention require formation of emulsions in base lubricants, created with an aqueous salt solution plus a single-phase compound such that partitioning within the resulting emulsion provides thermodynamically targeted compounds for boundary layer organization thus establishing anti-friction and/or anti-wear. The single-phase compound is termed “boundary layer organizer”, abbreviated BLO. These emulsion-contained compounds energetically favor association with tribologic surfaces in accord with the Second Law of Thermodynamics, and will organize boundary layers on those surfaces in ways specific to the chemistry of the salt and BLO additives. In this way friction modifications may be provided by BLOs targeted to boundary layers via emulsions within lubricating fluids, wherein those lubricating fluids may be water-based or oil-based.

It is known by the inventor that a universal synthetic lubricant additive that can greatly enhance the performance standards of existing lubricants, petroleum based or synthetic, imparts a new and desirable property not originally present in the existing oil or it reinforces a desirable property already possessed in some degree can greatly benefit the consumer. Although additives of many diverse types have been developed to meet special lubrication needs, their principal functions are relatively few in number. This universal synthetic lubricant additive (invention) with micro lubrication technology, when used as directed will reduce the oxidative or thermal degradation of the host oil, substantially reduce the deposition of harmful deposits in lubricated parts, minimize rust and corrosion, control frictional properties, reduce wear, temperature, sludge, varnishes and prevent destructive metal-to-metal contact, reduce fuel consumption and harmful emissions while improving performance through increased horsepower and torque.

The present invention relates to a method of driveline device by supplying to the driveline device a lubricating composition containing an oil of lubricating viscosity and an antiwear package, wherein the antiwear package includes: (a) derivatives of a carboxylic acid (typically a hydroxycarboxylic acid); and (b) a phosphorus compound. The invention further provides lubricating compositions containing an oil of lubricating viscosity and an antiwear package, wherein the antiwear package includes (a) derivatives of a carboxylic acid (typically a hydroxycarboxylic acid); and (b) an amine or metal salt of a phosphorus compound that is either (i) a hydroxy-substituted di-ester of (thio)phosphoric acid, or (ii) a phosphorylated hydroxy-substituted di- or tri-ester of (thio)phosphoric acid.

A tool, magazine (11) for accommodating a plurality of tools (T) comprising a first tool housing portion (17) and second tool housing portions (19, 21, 23) in which a plate-like member having a plurality of tool receiving holes (17a, 17b) and tool receiving recesses (19b, 21b, 23b) formed thereto and each of the tool receiving holes and the tool receiving recesses has at least three supporting members having a convex portion which engages with a V-shape trench of a tool, and a tool transporting means (25) so disposed to face a back surface of the first and second tool housing portions for transporting the tool to/from the first and second tool housing portions from/to a tool exchange position (P), wherein the second tool housing portions are disposed rearwardly offset with respect to the first tool housing portion.

A chain-type magazine includes a box, a chain-type conveyor and a spinning unit. The box includes a port defined therein. The chain-type conveyor includes links connected to one another so that each of the links can be pivoted relative to the other links about two axes in parallel to each other. A tool can be inserted in a holder inserted in each of the links. The spinning unit includes a mounting assembly, an elevating assembly, a rotary claw assembly and a connecting rod. The mounting assembly is connected to the box. The elevating assembly is movably connected to the mounting assembly. The rotary claw assembly is rotationally connected to the mounting assembly for catching a selected one of the links. The connecting rod connects the elevating assembly to the rotary claw assembly. The driving element drives the elevating assembly to spin the rotary claw assembly.

A machine tool is provided with a tool magazine including a guiding plate, a turntable and holders. The guiding plate includes an annular groove with a semi-circular section and a semi-oval section. The semi-circular section is defined by a radius. The semi-oval section is defined by a semi-major axis identical to the radius of the semi-circular section and a semi-minor axis shorter than the semi-major axis. The turntable includes claws extending from the periphery. Each of the holders is pivotally connected to a related one of the claws and includes an end for holding a tool and another end formed with a ball movably located in the annular groove. Thus, some of the holders of which the balls are located in the semi-circular section of the annular groove close while the other holders of which the balls are located in the semi-oval section of the annular groove open.

A method of placing a bottom block includes: placing bottom blocks on a block storage area in which a spindle can hold the bottom blocks; attaching a block-transferring tool to the spindle, the block-transferring tool having a main shaft attachment attached to the spindle and a block holder for holding the bottom block; and holding the bottom blocks by the block holder of the block-transferring tool and placing the held bottom blocks on a predetermined workpiece placing position on an upper surface of a table by relative movement.

A tool stocker includes main stockers for holding a plurality of tools detachably mounted on a main spindle for machining a workpiece, an auxiliary stocker for holding and transferring tools to and from the main stockers, and a tool transfer mechanism for transferring tools between the main stockers and the auxiliary stocker. The auxiliary stocker includes a plurality of tool pods for removably supporting the tools therein, a rail in sliding engagement with outer surfaces of the tool pods, a chain for moving the tool pods in sliding engagement with the rail, and a motor for actuating the chain. The rail has a recess defined therein in alignment with the tool transfer mechanism, such that the tools transferred by the tool transfer mechanism pass through the recess.

A carriage is moved in a direction including a Y axis component in order to move a turning process tool that is attached to a tool spindle along a horizontal line that is perpendicular to a Z axis, and thus, a turning process is carried out on a workpiece which is attached to a workpiece spindle.

A tool magazine device includes a magazine body adapted to be disposed on a machine body of a machine tool to confront a working space, a plurality of insertion openings formed in a right side wall of the magazine body and each extending towards a left side wall of the magazine body to form a storage chamber, a plurality of gripping members fitted in the insertion openings for grippingly engage cutting tools, an inlet disposed in the magazine body for introducing therein a flow of pressurized air, and an air duct unit disposed on the left side wall and coupled to communicate the inlet with the storage chambers so as to permit the pressurized air to flow out of the insertion openings to thereby clean swarf from the cutting tools.

A shaping machine system including a shaping device and a computer is provided. The shaping device includes at least one jig mount body configured for mounting a jig; a shaping tool support body configured for supporting a shaping tool; a first drive device configured for rotating the shaping tool; and a second drive device configured for driving the shaping tool support body or the at least one jig mount body or changing a posture of the shaping tool relative to the workpiece. The computer is configured for controlling the first and second drive devices according to predetermined shaping data. The computer includes a jig position measuring unit configured for measuring a position of the jig; a position error detecting unit configured for detecting a position error of the jig, and a shaping data correcting unit configured for correcting the predetermined shaping data according to a jig position error.

A tool chain magazine, in particular for program-controlled milling machines and machining centers, comprising a stationary supporting structure to which linear guiding devices, chain wheels, and a drive assembly as a rotary drive for at least one of the chain wheels are mounted. The tool chain comprises an endless magazine chain consisting of a series of chain links connected in an articulate manner to one another, wherein supporting and guiding elements are provided on each chain link, and each chain link has a respective socket as a holder for a tool taper. The base bodies of the chain links of the magazine chain are formed by the tool stations centrally disposed therein, and the front and rear connecting joints of the chain links are arranged in the longitudinal center axis of the magazine chain.

A tool handling device for machine tools, comprising a tool magazine having a transfer position for the transfer of the tools, including a tool changer movable between the transfer position and an exchange position, which has a rotatable double gripper, and a supporting structure movable on a foundation, on which the tool changer is mounted. In order to achieve fast tool changes in tight spaces on the machine, the supporting structure has an upper slide and a lower slide which can both be displaced by means of spindle drives in the same direction on a foundation, wherein a single drive motor is provided for driving the two spindle drives.