Abstract: A brake is provided. The brake may include a rotor having a plurality of magnets and a plurality of ferromagnetic poles radially disposed thereabout, and a stator having a plurality of shunts and a plurality of teeth radially disposed thereabout. At least one of the plurality of shunts and the plurality of teeth may be configured to selectively move between an engagement state and a free engagement state. The teeth may be configured to generate magnetic flux with the ferromagnetic poles so as to generate a braking torque during the engagement state. The shunts may be configured to redirect the magnetic flux therethrough and reduce the braking torque between the teeth and the ferromagnetic poles during the free engagement state.

Abstract: A vehicle braking system includes a wheel braking unit with an actuator, friction unit, and resilient member. The wheel braking unit is controlled by an operating element. The braking system can be operated in a normal operation mode by a control parameter. The braking system can be operated in a safety mode when the control parameter falls below a threshold value. In the normal mode, the control parameter acts on the actuator so that the actuator establishes a first air clearance in the friction unit. When in the safety mode, a resilient member establishes a second air clearance, which is smaller than the first air clearance.

Abstract: A first switching element is connected to one end of a brake and switches from the off state to the on state when a switch command is input to cause a brake drive current to flow through the brake. A second switching element is connected to the other end of the brake and switches from the off state to the on state when the switch command is input to cause a brake drive current to flow through the brake. A voltage detection unit detects a brake voltage being applied to the brake. A switch command delay unit delays the switch command input to the first switching element. A short circuit determination unit determines whether or not a short circuit has occurred in the first switching element based on the brake voltage and the switch command delayed by the switch command delay unit.

Abstract: A vehicular disc brake rotor is provided with a cast-iron base, a nitrogen diffusion layer formed on the cast-iron base, a nitrogen compound layer formed on the nitrogen diffusion layer, and an iron oxide layer including Fe3O4 and formed on the nitrogen compound layer. In a burnish and a first re-burnish of a “Passenger car-Braking device-Dynamometer test procedures” (which is based on JASO C 406:2000), a change ratio of a frictional coefficient between the burnish and the first re-burnish is 10% or less.

Abstract: An integrally-formed heat-dissipating brake pad structure, wherein the structure includes a backing plate, with a first side and a second side arranged back to back with respect to one another; a brake pad, mounted on the first side; and a plurality of heat dissipating parts, integrally and outwardly extended from the second side, so that heat generated by the friction of the brake pad during a brake can be dissipated by the integrally formed backing plate and heat dissipating parts.

Abstract: A hydraulic shock absorber includes a valve body having a second valve which is fixed to the valve body on a central axis CL side of the second valve and covers an open end of a second oil passage in the valve body. The second valve is deformable in a direction away from the valve body when the valve is applied with force from the valve body side. The second valve is configured: (a) to include a first through-hole formed in a circumferential direction thereof, (b) have lower stiffness, with respect to force from the valve body side, on a second through-hole side than on a third through-hole side and (c) such that a first corner portion C1 of the first through-hole has higher stiffness than a second corner portion C2 of the first through-hole positioned on the third through-hole side.

Abstract: A hydraulic brake handle assembly, wherein the response time of the hydraulic brake caliper can be much improved, and the brake action can be carried out immediately. When the brake lever is pressed, the volume of the oil pushed by the piston is doubled due to the hydraulic brake handle assembly is provided with two piston portions inserted in two oil chambers. Since the response time of the hydraulic caliper of the present invention is improved, it allows the brake pads of the hydraulic caliper to be assembled at a relatively large distance from the brake disc, so that sand won't get struck between the brake pads and the brake disc, and the brake disc remains useful when they are bent out of plain rubbing after using.

Abstract: A hydraulic brake master cylinder includes a cylinder unit having first and second spaces, a channel communicating the spaces and an adjuster exposed outside; a piston slidably disposed in the first space; a first spring applying an elastic force to the piston; a rod moving relative to the piston; a second spring applying an elastic force to the rod; a seal attached to the rod and moving controllably to seal the channel; and a nut threaded onto the rod. The adjuster is rotatable to make the nut and the rod rotate with respect to each other so as to change the distance between the seal and the end of the channel to adjust the free stroke.

Abstract: The present invention is directed to embodiments of an anti-zipper sliding device that may include at least one body, a gripping surface affixed onto the body, a fastener to removably attach the body and the gripping surface onto a piece of luggage having a zipper with a zipper track and a zipper puller so as to prevent the anti-zipper sliding device from moving along the zipper track of the luggage. The anti-zipper sliding device may also include at least one locking mechanism or be configured for engagement with at least one locking mechanism in order to lock at least one zipper puller to the anti-zipper sliding device in order to prevent the zipper from being re-zipped after a zipper breach.

Abstract: A suitcase with an integrated garment bag is able to be used to neatly store items to prevent them from being wrinkled or otherwise disarranged.

Abstract: A retractable wheel assembly includes a bracing member and a wheeled arm pivotally coupled to the bracing member. The wheeled arm is sized and positioned such that the wheeled arm rotates through an aperture of the bracing member. The wheeled arm includes an arm member, a wheel, and an aperture cover shaped and positioned such that when the wheeled arm is in a retracted mode, the aperture cover covers a majority of the aperture, but not substantially all, thereby forming a wheel gap. The wheel assembly includes a deployment arm and a trap member operationally coupled to the deployment arm, including a trap flange sized and positioned to cover the wheel gap when in a closed mode and to substantially uncover the wheel gap in an open mode. The retractable wheel assembly includes a handle operationally coupled to the trap member.

Abstract: The invention relates to a synchronizing device for a movably mounted furniture part, said synchronizing device synchronizing a movement between at least two adjusting devices via a synchronizing rod. The synchronizing rod has at least two sub-shafts between which an overload protection device is arranged, said overload protection device releasing a relative rotational movement between the two sub-shafts when a specified holding torque between the two sub-shafts is exceeded.

Abstract: A hub for at least partially muscle-powered vehicles having a hub axle, a hub body, a rotatable driving device, and a freewheel device. The freewheel device includes a first and a second engagement component cooperating with one another having at least one axial toothing each. The freewheel device is biased to the engaging position via a magnetic biasing device. A first magnetic device biases the first engagement component and a second magnetic device biases the second engagement component to the engaging position. At least one magnetic component comprises a carrier unit and a multitude of magnetic units disposed thereat.

Abstract: A clutch assembly includes a hub rotatable about an axis and at least partially surrounding a cavity, a damper ring within the cavity, able to revolve about the axis, rotatable relative to the hub, a spring, a friction disc, forced elastically by the spring into contact with the damper ring, and a second friction disc contacting the damper ring and providing a reaction to the force of the spring.

Abstract: Parking lock arrangement, having a parking lock mechanism, which can be moved between a parking lock position and a release position, and having an operating device which is supported so that it can rotate about a first axis and which is designed, through rotation, to operate the parking lock mechanism. The parking lock arrangement further has an actuating mechanism and a coupling device which couples the operating device to the actuating mechanism. The actuating mechanism is supported so that it can rotate about a second axis relative to a drum, which by means of a drive is rotatable about the second axis.

Abstract: A hybrid clutch assembly inserted between an internal combustion engine and the propeller of an aircraft to provide a hybrid-powered aircraft. The hybrid clutch assembly allows a direct current (DC) electric motor to be attached to the hybrid clutch assembly using drive belts. The hybrid clutch assembly allows the internal combustion engine to transmit power to the aircraft's propeller and freely spin the DC motor. The DC motor can transmit power to the aircraft's propeller without turning the internal combustion engine. The hybrid clutch assembly independently allows either the internal combustion engine or the DC motor in parallel to power the aircraft's propeller. The hybrid clutch assembly includes a hybrid clutch, a drive belt housing, a hybrid clutch assembly shaft, and an adapter plate. The hybrid clutch connects to the drive belt housing a hybrid clutch assembly shaft. The adapter plate enables connection of the hybrid clutch to the internal combustion engine propeller flange.

Abstract: A chain for rolling elements includes a carrier belt having first and second side strip on two sides thereof, and multiple holes are defined in the carrier belt and located between the first and second side strips. Each hole has a first opening end and a second opening end. Multiple retainers are connected to the carrier belt and located alternatively with respect to the holes. Multiple first ribs are connected between the first side strip and the retainer. Multiple second ribs are connected between the second side strip and the retainer. Each of the first and second side strips has a thickness T1, and each of the first and second ribs has a thickness T2 which is smaller than T1. The first and second ribs reinforce connections between the first and second side strips and the retainers so that the chain has even flexibility and can operate smoothly.

Abstract: A cash handling system includes: a cash settlement apparatus 11 configured to perform a settlement process with respect to a customer, by depositing and dispensing cash; a cash accounting apparatus 21 configured to dispense cash to be loaded to the cash settlement apparatus and configured to deposit cash having been collected from the cash settlement apparatus; and a cash transport cassette 30 attachable to and detachable from the cash settlement apparatus and the cash accounting apparatus, the cash transport cassette configured to pass cash to and from the cash settlement apparatus or the cash accounting apparatus when the cash transport cassette is attached to the cash settlement apparatus or the cash accounting apparatus, and configured to store cash such that the cash therein is incapable of being taken out when the cash transport cassette is detached from the cash settlement apparatus and the cash accounting apparatus.

Abstract: A high speed servo laner apparatus and system includes an entrance to the laner which receives products from an upstream processing line. A pivoting guide has a distal end attached to the entrance and a proximal end attached to a movable portion. At least one pacing screw is also attached to the moveable portion. The at least one pacing screw includes a thread, which has a pitch and radius configured to accommodate passage of a unit of product between two axially adjacent portions of the thread.

Abstract: A method of changing a transporting configuration of a workpiece of an absorbent article includes: for the workpiece having a shape in which a longitudinal central section is narrower in the lateral direction than longitudinal end sections, transporting a plurality of workpieces in longitudinal-direction flowing, the plurality of workpieces being transported in a state where the longitudinal end sections of each workpiece are adjacent to the central section of another workpiece and the plurality of workpieces form N workpiece lines (N is an integer of 2 or more) arranged in a lateral direction; forming each workpiece group including N workpieces by correlating, based on a predetermined correlation pattern; and changing a transporting configuration of the workpieces of the workpiece group from the longitudinal-direction flowing to the lateral-direction flowing. The forming of the workpiece group is performed by correlating workpieces arranged side by side in the lateral direction.

Abstract: A conveyor carries products in a first lane so that first, second and third products are aligned with one another and arranged in series. Pushers move the second and third products laterally in opposite direction from the first lane to second and third lanes, respectively. The conveyor extends downstream from the pushers for carrying the first, second and third products in the first, second and third lanes, respectively. The first product may be temporarily held back in the first lane until the second product catches up to the first product, at which time the first product is released and the conveyor carries the first, second and third products in the first, second and third lanes. The third product catches up to the first and second products to least partially form a group of the products.

Abstract: A carrier device and product handling system are described, in which product items are stored or transported through a product processing environment including such stages as portioning, packaging and labeling. The carrier device is designed such that product items can be loaded and unloaded automatically on trays. Traceability is provided by means of a machine-readable tag storing information relating to the contents of the carrier device's array of compartments. Examples of loading and unloading mechanisms are also described. The invention has particular application to the processing of meat products or other perishable goods.

Abstract: A spindle conveyor for conveying workpieces, in particular vehicle wheels, having a rail system that includes at least one support rail. Multiple conveyor carriages have a chassis that can be moved on the support rail in a conveying direction and a supporting device for workpieces which is entrained by the chassis. Each workpiece can be mounted on a workpiece spindle which is part of the supporting device which has a pair of workpiece spindles mounted so as to be rotatable as a unit relative to the chassis about a vertical axis of rotation and can be moved at least into a first rotational position and a second rotational position. Also a station for treating workpieces, in particular vehicle wheels, with such a spindle conveyor which allows the workpieces to be conveyed through the station.

Abstract: A work transfer device is capable of moving a carriage in any direction and easily changes processes even with a simple configuration. The work transfer device includes a frame having a slit in a transfer direction, a ribbon body stored in the frame such that an upper portion is guided by the slit, a carriage coupling part connected to an upper end of the ribbon body and protruding from an upper side of the frame, a driving part feeding power to move the ribbon body in the transfer direction, and a tool carriage, which has a support part supporting a work W and has a coupling part coupled to the carriage coupling part, travelling on the frame.

Abstract: A feeding device is used for hanging a workpiece on a fixture. The fixture includes two elastic portions. The feeding device includes a base for carrying the workpiece, a mounting seat, a driving member for driving the mounting seat, a guiding assembly, and a driving mechanism mounted on the mounting seat and connected to the guiding assembly for driving the guiding assembly. The guiding assembly passes through the base, and includes first and second guiding members. The driving member is capable of driving the first and second guiding members in the workpiece. The driving mechanism is capable of driving the first and second guiding members move away from each other to a position adjacent the inner walls of the workpiece, and the elastic portions resist against the inner walls of the workpiece, such that the workpiece is hung on the fixture.

Abstract: An inclined roller conveying assembly (40) includes a horizontally inclined roller (74) having opposite ends respectively supported by first and second supports (64, 66), with one support (64) having an idler bearing (80) and with the other support (66) having a drive coupling (94) that provides rotation of the inclined roller from a horizontal support and drive axis to provide support for the lower surface of an upper portion Gu of a hot upwardly concave formed glass sheet G being conveyed.

Abstract: An impact bed for supporting a conveyor belt in a troughing configuration. The impact bed has a plurality of resilient impact bars running lengthwise in a travel direction of the conveyor belt. The plurality of resilient impact bars includes at least a first resilient impact bar having a planar orientation, a second resilient impact bar having a troughing angled orientation and a third resilient impact bar between the first resilient impact bar and second resilient impact bar. The third resilient impact bar has an intermediate angled orientation that is greater than the planar orientation of the first resilient impact bar and less than the troughing angled orientation of the second resilient impact bar. The third resilient impact bar is removable from the impact bed without removing the first resilient impact bar or second resilient impact bar from the impact bed.

Abstract: A glass sheet guidance apparatus includes a guidance member extending adjacent a conveyance path. In one example, an adjustment device selectively adjusts a length of the guidance member extending between a first holding structure and a second holding structure. In another example, the glass sheet guidance apparatus is configured to traverse a length of the guidance member and the glass sheet in a common direction of a conveyance path. Further examples include methods of guiding a glass sheet with the glass sheet guidance apparatus. In still further examples a method of manufacturing a glass sheet includes guiding the glass sheet.

Abstract: A transport belt for a food processing machine and a manufacturing method thereof is provided. The transport belt comprising a first portion comprising a first elastomeric material having a first durometer of hardness; and a second portion comprising a second elastomeric material having a second durometer of hardness. The first durometer of hardness is different than the second durometer of hardness. The first portion provides a surface for food materials to be processed.

Abstract: An electronic device, comprising a rotating switch mechanism for switching a conduction state of a predefined electronic circuit corresponding to a rotating operation of a rotating operation part rotatably provided on a housing on the predefined rotational axis, a locking mechanism for locking the rotation of the rotating operation part relative to the housing, and a switching member for switching an operating state and a non-operating state of the electronic device, wherein the locking mechanism locks the rotation of the rotating operation part relative to the housing when the electronic device is in the operating state and does not lock the rotation of the rotating operation part relative to the housing when the electronic device is in the non-operating state so that the rotation of the rotating operation part of the rotating switch mechanism provided to the electronic device can be locked with improved usability.

Abstract: A toggle switch lockout clip including a clip body having a central region and including a latch portion protruding from the central region, the latch portion including an extension member and a hook member connected to the extension member to define a hook gap, a leg portion protruding from the central region away from the latch portion, a first side portion opposed from a second side portion, wherein the first and second side portions extend from the central region and define a gap therebetween, and an engagement portion positioned between the first and second side portions.

Abstract: A conduction breaking device is provided that uses gas from a gas generator to move a cutter block in the thickness direction of a cuttable portion, thereby cutting the cuttable portion between the moving cutter block and a cutting edge portion of a cutting chamber. The cutter block is attached to the cuttable portion such that, before generation of gas by the gas generator, a part of the cutter block is located in the cutting chamber and at a position close to the cutting edge portion in a direction along the surface of the cuttable portion.

Abstract: A rotary switch includes a base forming a number of contacts, a support apparatus installed in the base, and a rotary apparatus rotatably installed in the support apparatus. The support apparatus forms zigzag first and second guiding portions. The rotary apparatus includes a rotary pole, a trigger mounted to the rotary pole, two abutting poles, and two resilient members respectively connected between two opposite ends of the rotary pole and the abutting poles. An end portion of each abutting pole slides along the first guiding portion, to allow the abutting poles to stretch and withdraw along a lengthwise direction of the rotary pole, and allow the abutting poles to undulate along the second guiding portion in a direction perpendicular to the lengthwise direction of the rotary pole, to allow the rotary pole to contact and trigger one of the contacts or pass over the contact.

Abstract: A nano-electro-mechanical switch includes an input electrode, a body electrode, an insulating layer, an actuator electrode, an output electrode, and a cantilever beam adapted to flex in response to an actuation voltage applied between the body electrode and the actuator electrode. The cantilever beam includes the input electrode, the body electrode and the insulating layer, the latter separating the body electrode from the input electrode, the cantilever beam being configured such that, upon flexion of the cantilever beam, the input electrode comes in contact with the output electrode at a single mechanical contact point at the level of an end of the cantilever beam.

Abstract: In a vehicle push button switch, a case fixed to a vehicle body or a lid is provided with a guide portion for guiding a push button and supports a switch used to change a switching state in response to a push operation of the push button. The switch is protected by using a sealing structure. The case includes: a first case member; a second case member fixed to the first case member; and an elastic member interposed between the first and second case members. The push button is connected to the center portion of the elastic member, and the switch housed in a housing chamber formed between the first case member and the elastic member is supported by the first case member such that the switching state is changed in response to bending of the elastic member which occurs with the push operation of the push button.

Abstract: A rotor for an electric switch is disclosed. In an embodiment, the rotor includes a rotor housing and a rotatably mounted contact bridge, which exhibits two movable contacts, wherein, by the rotation of the rotor, the two movable contacts can interact with two fixed contacts of an electric switch for closing or opening a circuit. The rotatably mounted contact bridge in the rotor housing is movably mounted in a direction perpendicular to the direction of the contact bridge in its closed position.

Abstract: In a vehicle push button switch, movement of a push button is guided by multiple guide portions and backlash of the push button during a push operation thereof is thereby prevented, and operations of the push button are not hindered even when water attached to an outer surface of a bar-shaped portion of the push button freezes. The case is provided with a plurality of guide portions spaced away from each other in a peripheral direction of the bar-shaped portion to guide a plurality of sections of the bar-shaped portion that are located in the peripheral direction, and an ice scraping rib protrudes from an outer surface of the bar-shaped portion. The ice scraping rib scraps away a frozen ice portion formed by freezing of water attached to the outer surface of the bar-shaped portion between the plurality of guide portions, in response to movement of the bar-shaped portion.

Abstract: A luminescent keyswitch module includes a base plate, a keyswitch, a light guide plate, a light source, a diffusion structure, and a reflector. The keyswitch is disposed on the base plate. The light guide plate, disposed under the base plate, has an accommodating space communicated with a through hole of the base plate. The light source passes through the through hole, is accommodated in the accommodating space, and emits light having a first divergence angle. The diffusion structure is accommodated in the accommodating space and located between the light source and the light guide plate. The light passes through the diffusion structure. The light leaving the second light exit surface has a second divergence angle larger than the first divergence angle. The reflector is disposed under the light guide plate, so as to reflect the light to pass through the light guide plate and the base plate to the keyswitch.

Abstract: A method of testing the coking qualities of sample quantities of coal in a test container and the structure of the test container are disclosed. A test container which is ideally reusable is adapted to receive one or more samples of coal to be tested and then the test container is inserted into a coking oven along with additional, conventional coal during a conventional coking operation. Following the completion or substantial completion of the coking operation, the test container is recovered and from the conventional converted coke and the sample(s) of coke are removed from the container for testing and evaluation. The container is recharged with one or more additional samples of coke and reused in another conventional coking operation.

Abstract: A machine is described that reduces landfill and compost waste streams by processing the waste at the site of generation. The process used, rotary desiccation, is fast, energy efficient, generates no greenhouse gasses and the end product is both sterile and suitable for immediate use as a pellet fuel or other biomass uses. The machine integrates a number of sub-components (grinder, de-waterer, desiccation drum, separation devices) in new and non-obvious ways that automatically process and sort organic wastes and contaminants with no intervention from operators and very little maintenance.

Abstract: Apparatus and processes for continuous distillative separation of a mixture comprising one or more alkanolamine(s) are described. The separation is performed in one or more dividing wall column(s) and the alkanolamine or the alkanolamines is/are withdrawn as a side draw stream or side draw streams (side fraction(s)).

Abstract: Embodiments of extraction unit and an analysis method are provided. In one embodiment, the analysis method includes the steps of providing a feed stream and a species-selective solvent to the distillation column, drawing a vapor sample from the distillation column, condensing the vapor sample, and analyzing at least a portion of the condensed vapor sample.

Abstract: An improved water desalination system is disclosed, in which contaminated water such as seawater or brackish water is preheated and fed into a primary pressure vessel through a distribution head. The seawater is distributed from the distribution head over a non-adherent surface such as a plurality of silicone chords hanging below a distribution tank or a cone- and cylindrical-shaped surface. The water is exposed to a high temperature steam environment in the chamber to cause at least a portion of the water in the contaminated water to evaporate, while the remaining concentrated salts from the contaminated water fall to the bottom of the chamber. A portion of the steam in the primary pressure vessel is withdrawn to be condensed into fresh water. The energy withdrawn with the steam extracted from the primary pressure vessel is made up by a supplemental energy apparatus, such as a steam generator.

Abstract: According to one embodiment, a treatment apparatus includes a treatment liquid storage unit and a supply unit. The treatment liquid storage unit is configured to store a treatment liquid containing an acid and an oxidizing substance. The supply unit is configured to supply the treatment liquid stored in the treatment liquid storage unit to a fluid extracted via a production well.

Abstract: A feed device for a distillation tower or column with a flash zone, wash zone and stripping zone has an annular, open-bottomed channel located around the periphery of the feed zone of the tower with an inner wall spaced from the inner curved wall of the tower and a top covering the channel to confer a generally inverted-U shape to the cross section of the channel. One or more tangential feed inlets are provided to admit a heated, mixed phase feed to the tower and direct the feed into and along the channel. One or more vapor scoops are provided for each feed inlet with the scoop(s) located on the inner wall of the channel, each at a sufficient distance along the channel from the inlet to permit cyclonic separation of vapor and liquid to take place before the vapor in the feed from the inlet enters the scoop(s) and passes through a vapor exit port into the central core of the tower. The tower is preferably used with a radial louvre baffle at the top of the stripping zone.

Abstract: A distillation column with external circulation evaporator and a sedimentation zone in the bottom of the column, from which the evaporator circulation is fed, and use of the distillation column according to the invention for the distillation of acrylic acid.

Abstract: The invention provides a process for producing finely divided particles of core-shell structure where the shell comprises at least one polymer, said process comprising the steps of: i. providing a first aerosol stream of droplets in a carrier gas stream wherein the droplets comprise at least one monomer and charging droplets of the first aerosol with electric charge; ii. providing a second aerosol stream of solid particles in a carrier gas stream and charging the solid particles of the aerosol with an electric charge opposite to the electric charge on the droplets of the first aerosol stream; iii. mixing the first aerosol stream with the second aerosol stream to form a mixed aerosol stream; iv. initiating a polymerization of the monomers by irradiating this mixed aerosol stream with electromagnetic radiation. The invention also provides the finely divided particles of core-shell structure which are obtainable by this process.

Abstract: A fluid treatment apparatus comprising: a reactor vessel defining a chamber and having an inlet and an outlet to allow fluid to flow through the chamber; a UV light source adapted to transmit light within the chamber; and a plurality of catalyst members comprising a catalytic outer surface, the catalyst members being freely contained within the chamber, wherein the apparatus is adapted to cause the catalyst members to move around within the chamber as fluid flows through the chamber.

Abstract: The invention provides certain embodiments that involve sputtering techniques for applying a mixed oxide film comprising silica and titania. In these embodiments, the techniques involve sputtering at least two targets in a common chamber (e.g., in a shared gaseous atmosphere). A first of these targets includes silicon, while a second of the targets includes titanium. Further, the invention provides embodiments involving a substrate bearing a hydrophilic coating, which can be deposited by sputtering or any other suitable thin film deposition technique. The invention also provides techniques and apparatuses useful for depositing a wide variety of coating types. For example, the invention provides thin film deposition technologies in which sputtering apparatuses or other thin film deposition apparatuses are employed.

Abstract: One embodiment is directed to a magnetron assembly comprising a plurality of magnets, and a yoke configured to hold the plurality of magnets in at least four straight, parallel, independent linear arrays. The plurality of magnets is arranged in the yoke so as to form a pattern comprising an outer portion and an inner portion, wherein the outer portion substantially surrounds the perimeter of the inner portion. The end portions of the linear array comprise a pair of turnaround sections, wherein each turnaround section substantially spans respective ends of the pair of elongated sections of the outer portion. The magnets in each turnaround section are arranged to form at least two or more different curves in the magnetic field that are offset from each along the target rotation axis.