Abstract: An apparatus is disclosed for use on standard or customized wheelchairs for moving the wheelchair and wheelchair occupant up or down a stairway or stairway-like structure (e.g., a curb) with greater confidence and stability to the occupant of the wheelchair and its handler(s). The apparatus includes a motorized assembly that interacts with stair steps when the apparatus and wheelchair are tilted backwardly. The motorized assembly allows the wheelchair to glide or move up or down the steps without experiencing the bumps commonly associated with rolling a wheelchair up or down a set of stairs. The apparatus includes a headrest to provide comfort to the occupant during operation and includes pivoting handlebars to allow the operator of the wheelchair to control the movement of the wheelchair. The apparatus is mountable to, and removable from (when not in use), the wheelchair. The apparatus can be considered as a retrofit.

Abstract: A transporter for transporting a subject over a surface that may be irregular. The transporter includes a support platform for supporting a load, the loaded support platform defining fore-aft and lateral planes and characterized by a load distribution. A plurality of ground contacting elements are coupled to the support platform. At least one of the plurality of ground contacting elements is driven by a motorized drive arrangement. A sensor module generates a signal indicative of the load distribution of the loaded support platform. Based at least on the load distribution, a controller commands the motorized drive arrangement.

Abstract: A shutter system for controlling a flow of fluid through an entryway includes a plurality of louvers, wherein each louver includes a pivot axis and an actuating portion. The shutter system also includes a mechanism configured to select a position for the system between and inclusive of fully opened and fully closed by rotating each of the plurality of louvers about the respective pivot axis. The mechanism is configured to engage each actuating portion and rotate each louver at a variable rate. A vehicle employing the shutter system is also disclosed.

Abstract: A grille shutter apparatus arranged at a grille opening portion at a frontal portion of a vehicle body includes a frame shaping a flow path of air flowing into the vehicle body from the grille opening portion, a movable fin rotationally supported by the frame and configured to control a flow amount of the air by providing an opening movement and a closing movement, the movable fin including a fin portion and rotary shafts rotationally supported by the frame, the rotary shafts including exposure portions configured to be arranged on the flow path of the air, at least one first shielding wall extending radially outward of the rotary shaft and provided at the exposure portion and a second shielding wall arranged at an upstream side of the air that flows in relative to the exposure portion extending in a direction intersecting a direction of the air that flows in.

Abstract: A motor-assisted rotating wheel mechanism includes a rotating wheel, a rotating axle and an auxiliary motor. The rotating axle is rotationally disposed on a frame body and has two cranks with force-receiving members disposed at the two ends thereof, for allowing the force received by the force-receiving members to provide a rotational force to drive the rotating wheel to rotate and thus facilitate the auxiliary motor to output power, wherein the auxiliary motor is disposed between the two cranks disposed at the two ends of the rotating axle, and wherein the auxiliary motor includes a magnetic field having the same axle center as or parallel to the axle center, thereby facilitating the auxiliary motor to output power in cooperation with the rotating power provided by the rotating axle to synchronically drive the rotating wheel.

Abstract: A folding vehicle having a chassis that functions as a protective, carry-on casing is provided. The vehicle has a chassis with a center member, a rotatably-lockable front strut, a rotatably-lockable rear strut, and two pivot points for converting the vehicle from an operational state to a collapsed state; and, a drive member with a crankshaft. The crankshaft and the rotatably-lockable front strut pivot share a central axis of rotation; and, the releasably-lockable front strut and the releasably-lockable rear strut are configured to fold into a complementary relationship in the interior of the channel in the collapsed state. The channel functions as a protective, carry-on case for the folding vehicle in the collapsed state.

Abstract: An all terrain vehicle is disclosed having a frame and ground engaging members supporting the frame. A driver's seat is supported by the frame, and extends along a first longitudinal axis. A passenger's seat is supported by the frame and extends along a second longitudinal axis, where the first and second longitudinal axes are laterally spaced apart. The passenger seat may also be movable to a second location to allow for the vehicle to support a gurney, which extends in a front to back orientation.

Abstract: A vehicle with electric wheel hub motors for one or more wheels for operation to provide drive at low vehicle speeds and to supplement one or more primary drive motors which drive other wheels of the vehicle through all desired vehicle speeds including the low vehicle speeds and vehicle speeds higher than the low speeds.

Abstract: A continuously variable transmission (CVT) is provided for use on a recreational or utility vehicle. The CVT is electronically controlled by a control unit of the vehicle. The CVT includes a primary clutch having a first sheave and a second sheave moveable relative to the first sheave. An actuator may be positioned between the primary and secondary clutches.

Abstract: A disclosed seismic source assembly includes a body having a cavity and a seismic source positioned in the cavity. The cavity is in fluid communication with the water via an aperture oriented in a first direction. One or more surfaces of the body define a water contact significantly larger than an area of the aperture and on a side opposite the first direction. A described method includes forming a source assembly by: providing a cavity having an aperture for transmitting seismic waves; rigidly attaching a base to a side of the cavity opposite the aperture, where a transverse area of the base is significantly larger than an area of the aperture; and positioning a seismic source in the cavity. The source assembly is submerged in the water and triggered.

Abstract: Methods and apparatuses for wearing audio products are disclosed. In one example, an apparatus for delivering sound to an ear includes a flexible material shaped to fit within an outer ear. The apparatus includes a movable member in contact with an inner surface of the flexible material, the flexible material configured to expand or retract responsive to movement of the member.

Abstract: The present invention relates to an active sound absorber (3) for an exhaust system (1) of an internal combustion engine, preferably of a motor vehicle, comprising a housing (7), a connecting pipe (8) for the acoustic and fluidic connecting of the housing (7) with the exhaust system (1), an active membrane (10) which in the housing (7) separates a front volume (12), fluidically connected with the connecting pipe (8), from a back volume (13), and an actuator (11) for vibration stimulation of the active membrane (10). A risk of damage by condensate in the back volume (13) can be reduced by at least one condensation line (14), which fluidically connects the back volume (13) with the front volume (12), in which vapour contained in the exhaust gas condenses, and which directs the condensate which occurs to the front volume (12).

Abstract: An acoustic attenuator 20 for an engine booster such as a turbocharger 10 for an engine 4 is disclosed in which the acoustic attenuator 20 includes an attenuator chamber 28 in which is located at least one absorption media 140. The acoustic attenuator 20 is located adjacent an inlet port of the turbocharger 10 so as to attenuate any acoustic pressure waves by dissipative reaction with the absorption media 140 before they have chance to reach other components of a low pressure supply system 50 for the engine 4.

Abstract: A panel assembly for a traffic noise barrier wall of the type including opposing slots formed in pairs of vertically-mounted posts is disclosed. In some embodiments, the panel assembly includes the following: a sheet of material having top, bottom, and side edges forming a perimeter of the sheet, the sheet having a sheet thickness that is less than each of the first slot width and the second slot width; and a frame disposed along at least a portion of the perimeter of the sheet, wherein the frame includes a bracket having a base portion with a substantially triangular cross-section, the base portion being disposed along edges of the sheet, the base portion defining a channel for capturing edges of the sheet, the channel being positioned at an apex of the base portion.

Abstract: The invention relates to a ladder assembly for equipment, the ladder assembly comprising a ladder pivotally mounted to a mount; an actuation mechanism that includes a drive that engages a rotational actuator, the rotational actuator operatively connected to the ladder; wherein the drive causes rotation of the rotational actuator causing the ladder to pivot about the mount.

Abstract: A compact lubricant injector is disclosed. The injector includes an injector body having an inlet for lubricant under pressure, an outlet, and a measuring chamber for receiving lubricant from the inlet. A piston is movable in the injector body along a first axis through a stroke in the measuring chamber for the discharge of a measured volume of lubricant from the measuring chamber and thence through the outlet. A valve is movable in the injector body along a second axis different from the first axis. The valve is responsive to pressure conditions in the inlet for operation of the injector in a cycles ending in a state for venting the injector to effect recharging of the measuring chamber involving the transmission of lubricant from the inlet to the measuring chamber. A combination of at least one such lubricant injector and a manifold is also disclosed.

Abstract: A variable displacement lubricant pump includes a housing, a control ring configured to be shiftable arranged inside the housing, a first control chamber and a second control chamber. The first control chamber and the second control chamber are defined by the housing and by the control ring. A seal comprising a stiff bar and an elastomeric stripe fixed to the stiff bar. The seal is configured to seal the first control chamber and the second control chamber. The stiff bar is configured to slide at the housing. The elastomeric stripe of the seal is attached to the control ring.

Abstract: A lift truck includes a frame defining a main structural component of the lift truck, a mast assembly secured to the frame, first and second lower forks, first and second upper forks, and first and second pallet stops. The lower forks are secured to the frame and are provided for supporting a lower load carried by the lift truck. The upper forks are located above the lower forks and are provided for supporting an upper load carried by the lift truck. The upper forks are movable with respect to the lower forks along the mast assembly. The pallet stops position the lower load on the lower forks and are secured in place between the mast assembly and the frame at laterally spaced apart locations. Each pallet stops includes a surface for contacting the lower load and for maintaining the lower load at a desired axial position.

Abstract: A pallet fork includes a frame having a top support tube and a bottom support tube between opposing end plates. A fork bar and a carriage plate are supported by the frame. A fork tine is mounted to the fork bar via a slotted tube. The fork tine includes a vertical leg and a horizontal leg. The slotted tube is at an upper portion of the vertical leg. A locking plate is provided on the top support tube. An upper locking member selectively inserted through a slot in the slotted tube and through one of a plurality of notches to engage the vertical leg of the fork tine with the locking plate and restrict lateral motion of the fork tine. The upper locking member has a head portion with an open point that rests on a top surface of the top support tube.

Abstract: A car for an elevator, which is movable in an elevator shaft, has a car roof projecting at least partly beyond a drive unit. Arranged on the car roof in the region of the side facing the drive unit is a balustrade which has a handrail interrupted centrally in a drive receiving region. The balustrade has in the drive receiving region a bar which is arranged to be offset downwardly and inwardly relative to the handrail.

Abstract: A brake system comprising a structural unit adapted to be connected to a structure and defining a channel for the axial movement of a hoisting rope therein. A brake unit has a brake pad and an arm secured to one another for concurrent movement and movably mounted to the structural unit by at least one joint. The arm is in operative contact with a user end of the hoisting rope to be displaced with the brake pad between a hoisting position by a tautening of the hoisting rope, in which hoisting position the brake pad is distanced from the hoisting rope in the structural unit to allow movement of the hoisting rope in both pulling and releasing directions of the axial movement, and a braking position by a release of tension in the hoisting rope, in which the brake pad is displaced into contact with the hoisting rope.

Abstract: Caliper bodies for disc brakes are provided. Such caliper bodies are suitable for being arranged astride a disc for a disc brake. Calipers which include such caliper bodies are also provided.

Abstract: The present invention relates to an electromechanical actuator comprising an electric motor (11) for driving an output shaft (4) in rotation via a reduction gear (20) and passive regulation means (30) allowing for control of the speed of rotation of the output shaft, and comprising a braking member (30), arranged between an output of the reduction gear and the output shaft to be driven, said braking member being arranged to ensure two different braking levels depending on the direction of rotation of the shaft, characterized in that the braking member is of hydraulic type and comprises fluid decantation means (33) between two chambers (34, 35) decanting under the effect of the rotation of the output shaft through a selective drawing member (41) which, depending on the direction of rotation of the actuator, opposes two distinct resistances to the decantation of the fluid from one chamber to the other.

Abstract: An apparatus and method for preventing parking brake-caused disabling of a vehicle is provided. In at least one of the vehicle's parking brake release actuators' supply lines there is provided a flow arrangement which allows parking brake release fluid to flow to and from the release actuator when its supply line is undamaged, and restricts flow from the release pressure source when the line between the flow arrangement and the actuator is damaged. The flow arrangement may be a pilot-operated, non-graduated control valve, a combination of a pressure protection valve and a check valve arranged in parallel, a velocity-sensing check valve, or any other device or combination of devices which provide the damaged line shutoff or metering functionality. Such an arrangement prevents automatic application of the parking brake by releasing pressure from all of the vehicle's parking brake actuators, thereby precluding automatic vehicle immobilization following damage at one wheel end.

Abstract: A braking device includes a base, a braking component, and a driving component including a reset member. The braking component has a clamping block. The driving component includes a movable member, a chamber therein and a first butting portion. The movable member passes through the driving member. One end of the movable member has a piston accommodated in the chamber, and the other end of the movable member has a second butting portion. The reset member is disposed in the chamber. The piston butts the reset member under an external force, and the first butting portion and the second butting portion are kept away from each other, and when the external force vanishes, the reset member butts the piston, and the first butting portion and the second butting portion are kept close to each other so as to achieve a braking effect.

Abstract: A brake disk assembly includes a main plate clamped between the first and second inner plates. The main plate is movable relative to the first and second inner plates. The contact area between main plate and the first and second inner plates is increased to firmly connect the main plate and the first and second inner plates.

Abstract: Brake disk contains through channels (7) running across primary vanes (4) skewly to the inter-vane space (5). At least part of the brake disk body (1) is equipped with a static cover (8) in which a system of secondary vanes (9) is located. Channels (7) are preferably arranged in rows, where they have a bore increasing with increasing distance from the brake disk centre. The secondary vanes (9) are in the number of at least the number of primary vanes (4) and their impact surfaces (10) are directed against the cooling air flow direction. Primary vanes (4) and secondary vanes (9) are bent, but inversely. There are primary gaps between secondary vanes (9) and circumferential wall (13) of a cover (8), and secondary gap inter-connected with primary gaps is between the brake disk and supporting wall (11) of the cover (8). Space around the brake disk body (1) is interconnected with channels (7) and led out through the wheel disk outside the wheel.

Abstract: A hydraulically damping bearing includes a damping fluid having a complex viscosity that is above the complex viscosity of polydimethyl siloxane within a first frequency range in which the damping fluid is excited upon the bearing being activated. The complex velocity of the damping fluid is below the complex viscosity of polydimethyl siloxane within a second frequency range in which the damping fluid is excited upon the bearing being activated.

Abstract: A brake pad actuating device comprising: a piston including: a first pocket; an opposing second pocket; and an internal wall located in the piston separating the first pocket and the second pocket, wherein the volume of the first pocket to the volume of the second pocket form a ratio of less than about 20:1; and wherein the piston is adapted to be used as a brake piston.

Abstract: A method for damping aeroelastic modes, including limit cycle oscillations (LCO), is implemented by determining a mass for a tuned mass damper (TMD) based on an modal frequency for a mode having a potentially positive growth rate and attaching a TMD to at least one attachment point with significant motion such that a damping axis of the tuned mass damper is substantially oriented in a direction aligned with the local modal deflection.

Abstract: A hard luggage case includes a cover portion and a body portion hinged to one side of the cover portion. The body portion is made of a rigid material for maintaining the luggage case in a fixed shape and providing sufficient supporting strength for carrying things, and includes a base section and an extension section telescopically fitted in the base section. An axially extendable structure is connected at two axially opposite ends to between the base section and the extension section, and is configured as a tubular member formed of a flexible material. A first fastening structure is correspondingly connected to along two facing ends of the base section and the extension section of the body portion; and a second fastening structure is correspondingly connected to along two facing ends of the cover portion and the extension section of the body portion.

Abstract: A power supply apparatus is for supplying power to an electric vehicle by a magnetic induction mechanism. The apparatus includes a power supply structure including a multiple number of power supply rail modules connected in a forward road direction, each power supply rail module including at least one power supply line passage elongated in the forward road direction, a power supply core of a lattice structure provided below the power supply line passage, and a concrete structure incorporating the power supply line passage and the power supply core; at least one power supply line accommodated in the power supply line passage in the forward road direction and surrounded by an insulating pipe; and at least one common line provided in the forward road direction and surrounded by an insulating pipe, for supplying power to the power supply apparatus.

Abstract: An upper lateral collection structure (8) is mounted to a land vehicle (1), notably an urban public transport vehicle, and cooperates with fixed contact slippers (16), located along a travel route, for supply overhead electrical power to the vehicle. This structure comprises a conducting track (14) arranged longitudinally along the upper lateral part of the vehicle and comprises a contact region (15) for the contact slipper; an electrical connection connecting the conducting track to the electrical circuit of the vehicle; an insulating support (24) on which the conducting track is mounted; a mechanical connection of the collecting structure to the vehicle; and a damping device which damps shock resulting from the contact slipper and ensures satisfactory contact between the conducting track and the contact slipper. This invention is of benefit to the manufacturers of electrically powered public transport vehicles.

Abstract: A one-way clutch includes multiple rollers, a first collar and a second collar that are coupled together to form relative rotation between them, and a circular holding frame. The first collar has multiple cavities each having an inclined bottom surface. The circular holding frame has multiple slots corresponding to the rollers and exposing the cavities. The second collar is rotated to drive the circular holding frame rotating through friction force so that each roller is pushed to contact a higher portion of the inclined bottom surface and also the second collar drives the first collar rotating via pushing of the rollers. When rotational speed of the first collar is greater than that of the second collar, each roller enters a lower portion of the inclined bottom surface and separates from the second collar without transmitting torsional force between the second collar and first collar.

Abstract: An apparatus and a multi-position rotating device are disclosed herein. In one embodiment, the apparatus includes: (1) a main body having a rotational surface with a plurality of position holders and (2) an end cap releasably couplable to the main body and configured to rotate in a single direction, with respect to the rotational surface, based on the position holders.

Abstract: A hub assembly includes a ratchet mechanism located between the hub and the tubular portion on one end of the hub, and including a driving member which is located in the tubular portion and is movable linearly. One side of the driving member has a cone-shaped first ratchet portion located axially and is composed of two triangular contact surfaces. A passive member is movable in the first slot and one side of the passive member has a cone-shaped second ratchet portion which is engaged with the first ratchet portion. A returning member unit is located between the hub and the passive member, and between the tubular portion and the driving member. By the triangular cone-shaped first and second ratchet portions, the contact area and the friction between the ratchet portions are reduced, and the engagement and disengagement is more quick and smooth.

Abstract: A ratchet mechanism of a hub assembly is located between the hub and the tubular portion, and includes a driving member which is movable linearly in the tubular portion. One side of the driving member has a cone-shaped first ratchet portion located axially and is composed of two triangular contact surfaces. A passive member is fixed in the hub and has a cone-shaped second ratchet portion which is engaged with the first ratchet portion. A returning member is located between the hub and the driving member. The passive member is fixed to the hub easily. By the triangular cone-shaped first and second ratchet portions, the contact are and the friction between the ratchet portions are reduced, and the engagement and disengagement is more quick and smooth.

Abstract: A friction clutch device, in particular for a drive train of a motor vehicle which is driven by internal, combustion engine, having a rotational axis, a housing, at least one pressure plate which can be displaced in the direction of the rotational axis relative to the housing for an actuation, and a spring device for loading the at least one pressure plate, in which friction clutch device the spring device has a first element for generating a pressure force which acts on the at least one pressure plate, and a second element which is separate structurally from the first element for transmitting an actuating force, in order to improve the friction clutch structurally and/or functionally.

Abstract: An electromagnetic clutch includes: a rotary member; an output mechanism including an electromagnetic coil and an armature moved toward the electromagnetic coil by electromagnetic force; a cam mechanism operated by rotation of the rotary member in the electromagnetic coil energized state; and a coil housing having a coil accommodating portion open toward the armature and accommodating the electromagnetic coil. The coil housing and the armature have frictional engagement faces. The frictional engagement faces of the coil housing and the armature are frictionally-engageable. At least one of the coil housing and the armature has a contact pressure reducing portion for reducing contact pressures of the frictional engagement faces of the coil housing and the armature, generated based on cam thrust generated through an operation of the cam mechanism when the frictional engagement faces of the coil housing and the armature are frictionally-engaged.

Abstract: A friction plate, including: a ring-shaped piece of friction material with an inner circumference, and first and second surfaces facing in first and second opposite axial directions, respectively; a first core plate with a first ring-shaped body, a first plurality of protrusions extending radially outward from the first ring-shaped body and imbedded in the first surface, and a second plurality of protrusions extending radially inward from the first ring-shaped body; and a second core plate with a second ring-shaped body, a third plurality of protrusions extending radially outward from the second ring-shaped body and embedded in the second surface, and a fourth plurality of protrusions extending radially inward from the second ring-shaped body. The first and second bodies are at least partially disposed radially inward of the inner circumference. The second and fourth pluralities of protrusions are for engagement with a rotatable element.

Abstract: In a clutch cover assembly, accurate abrasion compensation is constantly enabled by stabilizing the actuation of an abrasion amount detecting mechanism. The present clutch cover assembly includes a clutch cover fixed to a flywheel, a pressure plate, a diaphragm spring, an abrasion amount detecting mechanism and an abrasion tracking mechanism. The abrasion amount detecting mechanism is a mechanism having a plurality of meshing positions and includes a mobile detecting member configured to release meshing in a first meshing position and move to a second meshing position when the abrasion amount of a friction member reaches a predetermined amount. The abrasion tracking mechanism moves the diaphragm spring to an initial posture side thereof in accordance with the displacement of the mobile detecting member.

Abstract: An alternator isolating decoupler comprising an alternator shaft, a one-way clutch engaged with the alternator shaft, a first wrap spring releasably engaged with the one-way clutch, a second wrap spring releasably engaged with the one-way clutch, the second wrap spring arranged in parallel with the first wrap spring, the first wrap spring and the second wrap spring in nested relation, the first wrap spring and the second wrap spring each having an end releasably engagable with an end cap, the end cap fixedly connected to an outer housing, the first wrap spring and the second wrap spring each engaged in series with a torsion spring, the torsion spring engaged with the outer housing, and the outer housing engaged with an alternator rotor.

Abstract: A clutch device includes; i) a clutch mechanism including a friction engagement member capable of rotating relative to a rotating member and a clutch member that is supplied with restoration force in a direction in which the clutch member departs from the friction engagement member by a restoration spring; and ii) a cam mechanism including; a cam member that is arranged in parallel to the clutch mechanism along a rotation axis line of the rotating member and that is incapable of rotating relative to the rotating member; and a cam follower capable of rolling on a cam surface that exists between the cam member and the clutch member. The cam angle is set to make torque applied to the clutch member due to reaction force accompanied by friction engagement with the friction engagement member larger than torque applied to the clutch member by thrust force caused by an activation of the cam mechanism.

Abstract: A grain distributor including a timer coupled to a distribution spout that generates a series of particular time values. The control processor is programmed with an algorithm to pivot the distribution spout and to receive and record signals from the sensor as the sensor confronts each of the code clusters and each of the proof windows. The control processor is programmed with the algorithm to associate each signal from each code cluster with a particular time value generated by the timer and to memorize the particular time value associated with each code cluster in a long term memory and the control processor being programmed with the algorithm to associate each signal from each of the proof windows in a long term memory. The grain distributor is also self programming.

Abstract: The invention relates to an automatic cash register system which comprises a detection unit for detecting goods to be paid for, a control unit which determines an amount of money due, an input unit for supplying notes of value for payment of the determined amount of money, a sensor unit for determination of the denomination of the inserted notes of value, and an output unit for dispensing change. The control unit fixes which denominations are accepted for payment of the amount of money in dependence of at least one operating parameter, and/or fixes a maximum amount in dependence of the amount of money due, wherein the control unit controls the cash register system so that in the payment of the amount of money due only notes of value or combinations of notes of value are accepted whose value does not exceed the maximum amount.

Abstract: A system and method for integrating devices and equipment into self-service kiosk devices is disclosed. Hardware configuration kits are provided which allow for a less complicated implementation of specific and customized functionality for quick service restaurant (QSR) environments. In certain embodiments a kiosk door is coupled to the kiosk body to form a kiosk cabinet in which devices and equipment used to operate the kiosk are housed. Certain interior kiosk components and devices, such as coin dispensers, bill acceptors, and the like, may be configured to extend or protrude through the kiosk door so that they may be accessed by the customer. The kiosk door may have a hollowed out center or aperture which allows access to the interior cabinet. The aperture may be substantially covered by a removable door inlay which cooperatively includes cutouts corresponding to the components protruding through the door.

Abstract: Embodiments herein provide a support structure for a radial conveyor. The support structure may include first and second wheel assemblies that may be selectively rotated between a travel position and an operating position. The support structure may include a drive assembly having a motor. The drive assembly may selectively engage and/or disengage the motor with one or more of the wheels of the first and/or second wheel assemblies. In some embodiments, the drive assembly may include a pinion coupled to the motor, and an actuating arm to selectively engage and/or disengage the pinion with a ring gear coupled to a first wheel of the first wheel assembly.

Abstract: A bidirectional moving walkway with a tightening system for tightening the band of pallets of the walkway includes two tightening units (6, 6?) arranged at each end of the moving walkway and each including a locking system for locking the movable frame (7) of each end tightening unit (6, 6?). Two drive units (3, 3?) are each arranged at either end of the moving walkway. The locking system of each tightening unit (6, 6?) of either end of the walkway is configured for locking the operation of the tightening unit (6, 6?) when the drive unit (3, 3?) of its same end is operated, such that the moving walkway always works with the tightening unit operated by the passenger entrance end and locked by the passenger exit end.

Abstract: A method and apparatus are provided for sorting or retrieving items to/from a plurality of destinations areas. The items are loaded onto one of a plurality of independently controlled delivery vehicles. The delivery vehicles follow a track that guides the delivery vehicles to/from the destination areas, which are positioned along the track. Once at the appropriate destination area, an item is transferred between the delivery vehicle and the destination area.

Abstract: An agricultural system for conveying product to a holding container is provided. One agricultural system includes a hopper configured to receive product and a conveyor configured to move the product from the hopper to a holding container. The hopper is configured to fold under the conveyor into a storage position that directs an opening in the hopper toward a soil surface.