Abstract: A folding reading desk formed by a support structure with two boards, with an intermediate cavity in-between wherein a worktop board can be introduced and extracted, wherein said worktop board is coupled, in a sliding assembly with a braking system, to a board arranged in the mentioned intermediate cavity between the facing boards.

Abstract: A foldable stool or table having hinges comprises a plurality of support members. In one embodiment, a foldable device comprises three legs. In another embodiment, the foldable stool or table comprises two foldable support members and two non-foldable support members. Relative to the top and bottom of the device, embodiments of the present invention may comprise one or more intermediately located steps or shelves, wherein the steps or shelves are located along at least one of the non-foldable support members. The one or more intermediately located steps or shelves may be forwardly-offset relative to a front surface of the non-foldable support members. A method of using the stool is also provided.

Abstract: The connector hub provides a means for making a pedestal base for a table or other furniture that is easy to assemble from readily available components, and stable and attractive when complete. The user provides the legs and top, and required fasteners. The connector hub provides for essentially straight legs of wood or metal to attach diagonally near their respective midpoints to each face of the connector in pinwheel fashion, and thence to the underside or substrate of the tabletop or seat, to which they are also attached, thus creating a pedestal base. The connector hub allows the pedestal base to be detached from the tabletop or surface it supports and folded for storage.

Abstract: A method for introducing flue gas in a steam-assisted production facility into a vapor-liquid contactor. In this method the flue gas comprises boiler combustion products selected from at least one of commercial pipeline natural gas and produced gas. The flue gas is cooled with the vapor-liquid contactor to condense a portion of the water vapor in the flue gas to produce a water stream. The water stream is then recirculated and cooled in an air cooler to produce recirculating water exiting the bottom of the vapor-liquid contactor. A water slipstream is then taken off the recirculating water to be used as make-up water.

Abstract: The present invention relates to a process (1) for the combustion of materials (X), comprising the steps of: (a) inserting the preferably compacted materials (X) in a reaction chamber (3) and closing the chamber (3); (b) injecting a flow of combustible gas and a corresponding flow of a comburent gas, which are in the correct stoichiometric ratio to each other, into the reaction chamber (3), so as to activate combustion of the materials (X); (c) continuing the thermochemical reaction of the oxidizable elements, for example carbon, with the oxygen present, without introducing any more gases; (d) injecting comburent gas to feed the thermochemical reactions of the oxidizable elements present in the materials (X), until the increase in temperature stops; (e) opening a throttle valve (5) to expel the gases, while continuing to introduce comburent gas at a substantially constant pressure until all remaining carbon has been oxidized, the strongly bound oxides have been subjected to pyrolysis and the metals present ha

Abstract: To provide a pesticidal composition which controls a pest undesirable for cultivation of a useful crop plant or a useful plant. A pesticidal composition comprising the following (component A) and the following (component B) as active ingredients: (component A): one or more compounds selected from 3-arylphenyl sulfide derivatives represented by the formula [I]: (component A): wherein R is a C2-C6 alkyl group which may be substituted, or the like, each of B0, B1, B2 and B3 which are independent of one another, is a hydrogen atom, a halogen atom or a haloalkyl group, n is an integer of from 0 to 2, and Ar is a phenyl group, a pyrazolyl group or a triazolyl group, (component B): one or more compounds selected from the group consisting of triazamate, butocarboxim, butoxycarboxim, chromafenozide, halofenozide, cyflumetofen, prallethrin, acetoprole, ethiprole, methamidophos, flonicamid, pyridalyl, flufenerim, flubendiamide, tebufenozide, fenazaquin and cyenopyrafen.

Abstract: An adjustable row cleaner includes a row cleaner assembly that functions to clear material from the ground surface. The adjustable row cleaner includes, in one embodiment, a connector that is in mechanical communication with both a row cleaner frame, to which row cleaner wheels may be pivotally mounted, and a first end of a translator member. The translator member may pivot with respect to the row unit frame and/or row unit sub-frame about a translator member pivot. The position of a translator member second end may be manipulated, thereby adjusting the maximum depth to which the row cleaner wheels penetrate the ground surface. The adjustable row cleaner may be powered or manually adjusted, and the position of the row cleaner wheels may be monitored and automatically adjusted via a control system.

Abstract: A semi-continuous composite rigging system is provided including at least one discontinuous shroud and one continuous shroud. The discontinuous shroud and the continuous shroud are coupled at their end portions to attachment points on a sailboat or other structure by terminal coupling devices. The continuous shroud is further coupled to the sailboat at one or more intermediate locations between its first end portion and its second end portion. These intermediate locations are coupled to the boat by non-terminal coupling devices. A hybrid coupling device may be used in place of a terminal and a non-terminal coupling device at one or more attachment points on the sailboat. The semi-continuous rigging system provides for achieving a desired balance of certain performance characteristics of a sailboat by utilizing a combination of discontinuous shrouds, continuous shrouds, terminal coupling devices, and non-terminal coupling devices.

Abstract: A vessel hull robot garage includes a stowage compartment for stowing a hull robot and a rotation system for rotating the stowage compartment relative to the vessel between a launch/recovery attitude and a stowed position.

Abstract: In one embodiment of the invention, a rope tender is rotatably affixed to the center pull on the tower to carry the rope over wakeboard racks. The rope tender is clamped to the center pull on the tower by a clamp. The rope is then pulled through an end loop on the rope tender and attached to the center pull on the tower. In one embodiment, the rope tender is looped one or more times in the middle to achieve a flexible, spring effect for the rope tender. The rope may also be pulled through the middle loop for support.

Abstract: A floating terminal for loading/offloading cargo of ships such as methane tankers comprises an area for mooring ships and a submerged skirt to damp oscillation of the terminal to attenuate relative movement of the terminal and ships in the mooring area.

Abstract: Provided are, among other things, systems, methods and techniques for water-based material transportation, such as a system that includes: (a) a robotic submersible propulsion unit having: a thruster, a computer controller that is coupled to and configured to control the thruster and that causes the robotic submersible propulsion unit to follow a predetermined course, and an attachment fitting; and (b) a submersible transport barge having: a storage tank, a locking port at a first end of the submersible transport barge that detachably connects to the attachment fitting of the robotic submersible propulsion unit, and a loading/downloading connection at a second end of the submersible transport barge that detachably connects to a transfer connection dock for transferring material between the storage tank and the transfer connection dock.

Abstract: A system for connecting an auxiliary craft and a mother ship includes a cable suspended from the mother ship, a cable tensioner, a mother-ship coupler that is slideably engaged to the cable, a fixture that depends from the auxiliary craft, and an auxiliary-craft coupler. The auxiliary craft is maneuvered to engage the cable. Once engaged, the cable tensioner tensions the cable, thereby maintaining the auxiliary craft in position next to the mother ship. As the cable is tensioned, the auxiliary-craft coupler axially aligns to the mother-ship coupler. After axial alignment, the mother-ship coupler is released to slide into mating engagement with the auxiliary-craft coupler. Mated couplers enable bi-directional electrical or optical communications as well as the transfer of power, fuel or other fluids from the mother ship to the auxiliary craft.

Abstract: A warning device for mounting on a vehicle having a rear bumper includes a storage housing, a warning frame and a driving unit. The storage housing is concealedly mounted within the rear bumper of the vehicle. The warning frame is selectively received in the storage housing. The driving unit connecting the storage housing and the warning frame to drive the warning frame to operate between a extended mode and a storage mode, wherein in the storage mode, the warning frame is selectively concealed within the storage housing, wherein in the extended mode, the warning frame is selectively driven by the driving unit to extend out of the storage housing to form a triangular structure for providing a warning signal to incoming traffic.

Abstract: A device (1) for removable attachment of a flag (5) on a flagpole (9), where the flag comprises a holder (7) adapted to receive one end of a flagpole (11). The device comprises a body (25) which one end comprises means (15) for attaching the device at one end of a flagpole and which other end is provided with a protruding element (20) arranged to in interaction with the holder hold the flag at the flagpole. The protruding element comprises an inner part (21) with a cross section that is less than the cross section of the body and an outer part (23) with a cross section that is larger than the cross section of the inner part. The outer part is arranged so that it allows an elastic compression so that its cross section decreases when its subjected to a lateral force (F) and so that its cross section resumes its original cross section when the force ceases.

Abstract: In accordance with one or more embodiments use one or more non-adhesive materials to create, a graphical, or shape oriented reference point, or points that allow the game player, or players to quickly acquire visually defined areas (FIG. 3A, FIG. 3B). This can improve accuracy, performance or game play in general by, providing a appropriately designed non-destructive reference point to use while the game (FIG. 1), software application or presentation is viewed on the screen behind it. Non-Adhesive screen position indicators can be stacked (FIG. 2) to create custom shapes and designs. Using non-adhesive material to create the Non-Adhesive screen position indicators insures the television, monitor, display screen or similar device will not be damaged.

Abstract: A manually settable, tamper resistant indicator device suitable for use in medical and other professions, and a method for operating the device, are disclosed. An indicia member is manually moved relative to a pointer member, in setting the indicator device to display selected indicia at a pointing area. The displayed information is locked by fixing the indicia member relative to the pointer member, using a tamper resistant locking member. A fastening device, which may be tamper resistant, is used for attaching the indicator device to an article, which may be a medical device attached to a medical patient. The indicator device may be sterilized. In a medical setting, the displayed information may include a day, a date, a usage count or a personnel identifier. In one example, the indicia member has a plurality of sliding strips, each sliding strip being mounted to the pointer member and independently movable.

Abstract: A cavitational ultrasound (e.g., Histotripsy) gel phantom and cavitational ultrasound testing system are provided that may include any of a number of features. One feature of the phantom and system is that it can allow for instant visual feedback on the efficacy and dosage of a Histotripsy transducer. The changes in the gel phantom can be visualized with the naked eye without having to wait for histology. The changes in the gel phantom can also be visualized with a camera, with ultrasound imaging, or with microscopy. In various embodiments, the phantom includes indicators such as carbon particles, dye-encapsulated beads, and red blood cells. Methods associated with use of the cavitational ultrasound gel phantom and testing system are also covered.

Abstract: A crystal growth method for forming a semiconductor film, the method includes: while revolving one or more substrates about a rotation axis, passing raw material gas and carrier gas from the rotation axis side in a direction substantially parallel to a major surface of the substrate. The center of the substrate is located on a side nearer to the rotation axis than a position at which growth rate of the semiconductor film formed by thermal decomposition of the raw material gas is maximized.

Abstract: A laser heated pedestal growth system for growing a periodically poled, single crystal rod having domain interfaces substantially parallel to the rod's long axis. Suitable crystalline ferroelectric feed materials have a Curie temperature no greater than ˜200° C. below its melting point and include Lithium Niobate and MgO doped Lithium Niobate.

Abstract: An application apparatus includes: a medium conveying device which holds and conveys a medium in a predetermined conveyance direction; an application roller which applies a liquid to the medium held by the medium conveying device; an application roller rotating device which rotates the application roller at a predetermined rotational speed; a measuring roller which feeds a predetermined measured amount of the liquid to the application roller; a measuring roller rotating device which rotates the measuring roller at a predetermined rotational speed; a first moving device which causes relative movement between the application roller and the medium conveying device to change a distance between the application roller and the medium conveying device; a second moving device which causes relative movement between the application roller and the measuring roller to change a distance between the application roller and the measuring roller; and a movement controlling device which controls the second moving device in such

Abstract: A device for blocking workpieces for the processing and/or coating thereof, has a support surface for positioning the workpiece to be blocked, a blocking station in which the workpiece can be blocked on a blocking piece by a temporarily deformable blocking material, and a transport device which has a retaining head for the workpiece and by which a relative movement can be created between the workpiece being retained at the retaining head, and the support surface and the blocking station. The transport device has at least four position-controlled movement axes, by which to position the workpiece in a defined manner in consideration of the orientation and geometric information relative to a blocking piece located in the blocking station, and can be retained in the defined relative position to the blocking piece during blocking while leaving a blocking material accommodation gap between the workpiece and the blocking piece.

Abstract: Methods and devices for controlling a growth rate of films in semiconductor structures are shown. Chemical vapor deposition methods and devices include the use of a reaction inhibitor that selectively varies a deposition rate along a surface. One specific method includes atomic layer deposition. One method shown provides high step coverage over features such as trenches in trench plate capacitors. Also shown are methods and devices to provide uniform batch reactor layer thicknesses. Also shown are methods for forming alloy layers with high control over composition. Also shown are methods to selectively control growth rate to provide growth only on selected surfaces.

Abstract: A mask assembly, a deposition apparatus for flat panel displays including the same, and associated methods, the mask assembly including an open mask having a plurality of first openings, and a pattern mask coupled to the open mask, the pattern mask having a plurality of second openings disposed within an area bounded by the first openings, wherein the open mask is formed of a material having a thermal expansion coefficient that is lower than a thermal expansion coefficient of the pattern mask.

Abstract: An arc ion plating apparatus comprises a vacuum chamber, a rotary table for moving a substrate within the vacuum chamber vertically relative to its height direction, an arc evaporation source for bombardment for cleaning the surface of the substrate with metal ions, and an arc evaporation source for deposition group for depositing metal ions on the surface of the substrate. The arc evaporation source for deposition group is composed of a plurality of evaporation sources arranged so as to be opposite to the substrate set on the rotary table, and the arc evaporation source for bombardment is arranged so as to be opposite to the substrate, and formed so that its length in the height direction of the vacuum chamber is equal to the length between the upper and lower ends of the arc evaporation source for deposition group. According to such a structure, over temperature rise or abnormal discharge is hardly caused in the substrate at the time of bombardment, and process controllability is consequently enhanced.

Abstract: One embodiment provides a reactor for material deposition. The reactor includes a chamber and at least one gas nozzle. The chamber includes a pair of susceptors, each having a front side and a back side. The front side mounts a number of substrates. The susceptors are positioned vertically so that the front sides of the susceptors face each other, and the vertical edges of the susceptors are in contact with each other, thereby forming a substantially enclosed narrow channel between the substrates mounted on different susceptors. The gas nozzle includes a gas-inlet component situated in the center and a detachable gas-outlet component stacked around the gas-inlet component. The gas-inlet component includes at least one opening coupled to the chamber, and is configured to inject precursor gases into the chamber. The detachable gas-outlet component includes at least one opening coupled to the chamber, and is configured to output exhaust gases from the chamber.

Abstract: An in-ovo egg injection machine generates and transmits vibration to an incubating egg tray to align the egg axes prior to injection. The mechanism can be used independently of the in-ovo egg injection machine and is suitable for use with an egg candling machine. With the eggs positioned on the incubating tray and held by egg tray posts with their large ends facing upward for the purposes of incubation, vibration is applied to the tray. The vibration allows the eggs to ‘float’ in their restricted locations in the egg tray. Since the eggs are naturally bottom-heavy, the heaviest portion of each egg moves down as the tray is vibrated. The eggs therefore self-align their axes into an orientation corresponding with the established vertical axes of the injectors, respectively, with no contact with the eggs being required.

Abstract: An apparatus for storing, grinding, and dispensing flake style fish feed for the purpose of feeding fish in an a aquarium. The apparatus having an upper hopper for receiving a quantity of flake fish feed, a grinding mechanism in the lower portion of the upper hopper for breaking down the larger feed flakes into smaller, more uniform flakes.

Abstract: A bird feeder that includes a bird feed holder having open top and bottom ends, a plurality of feeding ports disposed in a sidewall defining the holder, a plurality of perches each associated with an inlet of an associated feeding port and a removable base for engaging with the bottom end of the holder, the removable base having a closed position for sealing the bottom end of the holder so as to retain the bird feed therein and an open position in which the base is removed from the holder to enable access to the bottom end of the holder. One embodiment has a manually operated latch member supported by the base and supported for radial engagement so as to enable releasable securing of the removable base to the holder. In another embodiment a manually operated latch couples to a main body portion, the latch being supported for rotation with respect to the main body portion to releasably secure the base assembly to the housing. Also disclosed is a feeder support apparatus.

Abstract: An improved livestock feeder provided with an adjustable feed dispensing mechanism including control levers which are operatively connected to the feed metering gates to control the flow of feed to livestock. The dispensing mechanism features a control lever which engage an array of indexing holes formed in the feeder to position the feed gate within the opening to adjust the amount of feed dispensed from the hopper. The dispensing mechanism includes a graduated scale corresponding to each of the index holes to provide a standard setting for the feeder which can be utilized by an animal producer to supply of feed flow at a given stage in the animal's life cycle to obtain a desired growth rate.

Abstract: A squirrel guard for use with bird feeder which stores and dispenses bird seed. The feeder comprises an upstanding housing formed along a vertical axis including side walls, a roof and a floor adjacent its lower side. A support is provided for positioning the feeder in an elevated position. The squirrel guard comprises a generally round and planar tray having a circular opening about its axis which is mounted beneath the lower side of the feeder. The tray acts to deny squirrel access to the bird seeds and also as a collection tray for spilled bird seed. A connector is arranged beneath the lower side for supporting the tray in a generally horizontal position when carrying only a minimal weight such as bird seed and small birds. The connector is such that the tray tilts to a generally diagonal position when engaged with a relatively heavy weight such as a squirrel.

Abstract: A pet drinking fountain assembly having a pump forming part of a fountain mounting arrangement that includes a lift tube coupling a cover to the pump coupled to a lower basin by a mount. The mount and lift tube attenuate pump noise and vibration by providing isolation from the basin and cover and can function as dampeners. In a preferred embodiment the pump is part of a pump module that includes a module housing to which the pump is attached by another noise-attenuating mount. Each mount is formed by one or more suction cups with the cups and lift tube made of vibration dampening material, such as a resilient vibration dampening or isolating material that can be an elastomeric material. The module includes a lift tube coupling discharge that registers in fluid flow communication with a pump outlet and can include a ring or bushing therebetween providing additional noise attenuation.

Abstract: The invention is directed to a pet litter box that has a lower portion having a bottom wall and four lower portion side walls that are at slightly more than ninety degrees from the bottom wall. An upper portion has a top wall and four upper portion side walls. A cutout portion in one of the four upper portion side walls forms a pet ingress and egress point. The four upper side walls terminate in a groove that mates with a lip formed by the four lower portion side walls. An internal divider has a floor grate that extends along a length of the lower portion and has a wall at approximately ninety degrees to the floor grate. The wall does not extend the length of the lower portion.

Abstract: The present invention relates to methods of raising crustaceans, comprising maintaining crustaceans in low salinity water having a Calcium-sensing Receptor (CaSR) modulator(s), and adding feed that contains an agent that contributes to modulation of a crustacean CaSR to the water.

Abstract: A method and apparatus for pumping deeper water from a large body of water to an upper portion thereof using wave energy, thereby increasing nutrients at said upper portion and thus the fish populations thereof.

Abstract: Fish hiding units are discloses herein, which may comprise a sinkable container comprising at least one open end; a plurality of elongated and substantially flat projection members comprising a body and opposing ends inserted at one end into the open end of the container; and an adhesive substance disposed in the container for attaching the projection members inside the container.

Abstract: I am Wu Zheng Yi, have invented AIR VENT TUBE FOR AQUARIUM AND FISH TANKS SPECIAL USEGE AND STRENGTHEN (Air Vent tube). This invention, Air Vent Tube (AVT), is for aquarium products and fish tanks using and strengthen. This Air Vent Tube is the best suitable for aquariums and fish tanks to increase air and oxygen in the water in fish tank, because fishes in the fish tanks need more oxygen in the water. The structure of Air Vent Tube is the idea created at least two surfaces and three surfaces, which are formed right angle shape and triangle shape. There is a long hole in the Air Vent Tube and the long hole connects with the short outflow hole in the large surface of the Air Vent tube. Along the Air Vent Tube length extension and view as long shape. These invented AVT can be made of glass material or other materials.

Abstract: A grooming tool for pets or animals. The tool can include a handle portion and a grooming portion. The grooming portion preferably includes a plurality of tines arranged in first and second rows such that the first row of tines is vertically separated from the second row of tines. In addition, each of the first and second row of tines preferably includes alternating first and second tines, wherein the first tines have a longer length than the second tines. Moreover, preferably, the longer first tines and the shorter second tines in the first row of tines alternate compared to the longer first tines and the shorter second tines in the second row of tines. The first and second row of tines may also include different radii of curvatures, tapered outer diameters, etc. Moreover, in another preferred embodiment of the grooming tool, the tool may including a raking portion to dislodge the hair or fur from the grooming portion.

Abstract: An apparatus for washing an animal with a liquid, includes a container having an open upper end portion, opposite end walls, opposite side walls, and a bottom wall. At least one pair of ledges extends from the opposite side walls above the bottom wall. One or more platforms are each provided with widths that are shorter than the lengths of the platforms, wherein the platforms may be passed through the container to the bottom wall when the platforms are turned in one direction or supported by the pair of ledges when the platforms are turned ninety degrees. Multiple pairs of ledges may be provided for varied platform levels within the container.

Abstract: An animal deterring device has a carrier with first and second conductive traces that are separated by an arc suppressor. Most typically, the arc suppressor is configured to eliminate short circuiting of the device when exposed to fog, dew, rain, or animal excrements while at the same time to allow an animal to contact both conductive traces at the same time.

Abstract: This system comprises a platform used as a restraint for animals and pets which design is based on an umbrella like motion to collapse and expand for easy use, transport and storage. The platform will connect to any readily available generic harness having a ventral strap, collar strap, and girth strap which by the design of these components provides a secure point of connection between the animal's or pet's front legs and the center of the platform. The platform is circular in form with a centered connection point that uses the animal's own weight and position to prevent free movement. The animal or pet can sit or stand but is limited in directional movement by the connection between the platform and the harness.

Abstract: A pet harness safety system has a harness assembly with two parallel body loops and a carabiner tether assembly with opposing carabiners. During usage, one of the carabiners is secured to a reinforced loop on each of the body loops of the harness assembly and the other carabiner is secured to an in-vehicle restraint system. The body loops are substantially parallel to the body of the dog such that only its shoulders are encircled by the body loops, and are adjustably joined together to form a completed or closed system.

Abstract: A no-tangle, retractable leash device for more than one tethered entity, the leash device. The device includes a handle and a housing rotatably carried by the handle. The housing having an interior and at least a first and second aperture communicating the interior with the ambient environment. The device also includes at least a first and second leash reel carried within the housing. The first and second leash reels each carrying a respective leash and being independently rotatable enabling a respective leash to extend through a respective aperture of the housing. A brake inhibits the rotational movement of at least one reel.

Abstract: A water heater module of the present invention includes a water heater and an extra heat exchanger. The extra heat exchanger has a spiral pipe and is detachably connected to the water heater. The spiral pipe is heated by high temperature gas from the water heater to pre-heat cold water in the pipe, and then the water is sent to the water heater for further heating that the temperature of the water will be raised within a short time.

Abstract: Provided is a lancing device in which two guide rails and washing robots are installed in both directions of a hand hole, and each washing robot removes precipitates from the center of a steam generator, and therefore precipitates do not flow backwards, thereby completely removing precipitates.

Abstract: An improved vehicle having a hydrogen generator providing a mixture of hydrogen and/or oxygen to a combustion chamber of a diesel powered engine which is combined with diesel fuel for improving the efficiency of the diesel powered engine and substantially preventing unwanted organic residue produced by the combustion of the diesel fuel, a secondary cooling fan connected to the diesel powered engine; and a control system controlling the operation of at least one of the generator, the primary cooling fan and the secondary cooling fan to enhance the performance of the vehicle.

Abstract: An injector seal assembly and method of sealing a coolant passage from an injector are provided. The seal assembly includes a sealing sleeve sized and dimensioned to slip fit into an injector mounting bore and a retaining ring sized and dimensioned to be axially inserted into the sleeve. The ring contacts the sleeve and applies a radial force sufficient to create an interference fit and to move or yield an interface portion of the sleeve radially outward into sealing abutment against a wall forming the injector mounting bore to create a secure and reliable annular fluid seal.

Abstract: A camshaft assembly may include a monolithic camshaft body, a journal member and a thrust ring. The monolithic camshaft body may define lobes and journal regions along an axial extent thereof. The journal member may be separate from and fixed to an axial end of the camshaft body adjacent an end lobe of the camshaft body. The thrust ring may be axially secured to the camshaft assembly at the axial end of the camshaft body.

Abstract: A device for varying the angular position of a camshaft relative to a crankshaft of an internal combustion engine. The device has a drive element, which is driven by the crankshaft via a gearwheel and which is supported so that it can rotate in relation to the camshaft. The device also has at least two hydraulic chambers, to which a hydraulic fluid can be admitted in order to set a defined relative rotational position between the drive element and the camshaft, formed between the drive element and the camshaft. In order to produce an optimum axial support of the camshaft in terms of weight and cost, the gearwheel form a bearing face for the axial contact of the camshaft or of a component rotationally fixed to the latter.

Abstract: A device for varying the relative angular position of a camshaft (2) with respect to a crankshaft of an internal combustion engine. The device has a drive element which is driven by the crankshaft via a gearwheel and which is mounted rotatably with respect to the camshaft. Between the drive element and the camshaft, there is at least two hydraulic chambers which can be acted upon with a pressure fluid in order to set a defined relative rotary position between the drive element and the camshaft.