Abstract: Systems, methods, and other embodiments described herein relate to improving propulsion of a vehicle. In one embodiment, a method includes, in response to detecting a vehicle configuration associated with an arrangement of a set of hub motors that are selectively attachable on driven wheels of the vehicle, loading a control setting according to the arrangement to one of a series configuration and a parallel configuration to indicate a power source for the driven wheels as one or more of a motor of the set of hub motors and a central propulsion system. The set of hub motors is structured to be selectively attached to the driven wheels without removing the driven wheels from the vehicle. The method includes managing power delivery to the set of hub motors and the central propulsion system of the vehicle to propel the vehicle according to the control setting.

Abstract: The plant includes at least one single facer, having a supporting structure, adapted to receive a corrugating unit provided with a first corrugating roller and a second corrugating roller meshing with each other. The plant also includes a magazine having a plurality of seats for receiving corrugating units and movable along a first guide. Associated with the single facer there is provided a shuttle movable between the single facer and the guide of the magazine, adapted to transfer corrugating units from the single facer to the magazine and vice versa.

Abstract: Provided are a system and a method for assembling a double-deck vehicle body. The system includes a vehicle body chassis support and an upper floor support. The vehicle body chassis support includes a crossbeam, end supports, and an intermediate support, where the end supports are arranged separately at two ends of the crossbeam, the intermediate support is arranged at the middle of the crossbeam, a height of the end supports is greater than a height of the intermediate support, an upper surface of the end supports and an upper surface of the intermediate support are configured to be closely fitted to a lower surface of a vehicle body chassis; and the upper floor support is detachably arranged on a vehicle body chassis for supporting an upper floor of the vehicle body.

Abstract: A mandrel for supporting a stent and rollers for pressing a radiopaque marker into a stent are disclosed. The mandrel can have a forward portion for carrying the stent and a rear portion for urging the stent forward portion into a gap between the rollers. The mandrel may be pushed or pulled into the gap, which is sized to allow the rollers to press the marker into engagement with the stent. Prior to moving the mandrel into the gap, the marker may be placed on a surface of the stent or partially inside a recess in the stent. Several markers can be efficiently and uniformly pressed onto the stent by moving the mandrel into the gap in one continuous movement in an axial or lateral direction. Markers can also be pressed onto the stent by placing the stent in the gap and rotating the stent about its central axis.

Abstract: Disclosed is a roller hemming system for panels of a vehicle that may include: a marriage jig adapted to load thereon a part having an outer panel and an inner panel joined together; a clamping pad releasably mounted at a front end of an arm of a first handling robot, and adapted to clamp the part loaded on the marriage jig by a plurality of clamping means; a plurality of transfer rails adapted to intersect with each other at a center; a plurality of hemming dies, each being disposed on a predetermined transfer rail, being adapted to reciprocate on the transfer rail between the center and an initial position, and being adapted to receive thereon the part clamped by the clamping pad; and a plurality of hemming robots being disposed corresponding to each hemming die and provided with a hemming roller unit adapted to hem an edge of the part.

Abstract: Apparatus for assisting in weld assembling a box column from a tack-welded pre-assembly of planar plate components. The apparatus features (1) an elongate frame defining a rotational-assembly axis, and (2) plural pre-assembly-receiving, rotational support structures mounted at spaced locations on the frame—each support structure including (a) an openable/closable yoke possessing a collar-reception zone, (b) an openable/closable collar rotatably receivable within this reception zone, and possessing a central throughpassage having a cross-sectional configuration which is larger than that of a box-column which is to be assembled, and (c) a pair of removably-collar-attachable, throughpassage clamping shoes for forming cooperatively, within the collar throughpassage, a window for complementarily, receiving extension therethrough of a box-column pre-assembly's cross section.

Abstract: In a framing system for framing motor-vehicle bodies or sub-assemblies thereof, the body to be framed is located and clamped in position during the assembling operations by side locating and clamping structures (8). Each of these structures comprises a rigid supporting structure (82) including a base platform (82a) and a frame (81) which carries locating and clamping devices (D). The base platform (82a) is dimensioned in the direction parallel to a body conveyor line with a standard length proportionated to the length of the longest body type on which the system is to operate. Pillars (82b) for supporting the frame (81) are mounted on the platform (82a) at positions which are selected between different possible positions, displaced relative to each other longitudinally and/or transversely. Thus, the side locating and clamping structures (8) can be configured easily for different types of body and the system is able to operate on body types having also very relevant differences in length and/or width.

Abstract: A system for manufacturing a side panel of a vehicle, the system including upper running rails and lower running rails to provide a movement path of a cart, the cart having a support frame, a transfer roller, and a friction bar provided at a bottom surface of the support frame, wherein the side panel may be mounted on the cart and the cart moves selectively along the upper running rails and the lower running rails, at least a friction drive unit and at least a friction wheel disposed along the upper and lower running rails wherein the at least a friction drive selectively rotates the at least a friction wheel to move the cart by selectively engaging at least one of the friction wheels with the friction bar of the cart, and an external unit supporting an edge portion of the side panel during key welding process.

Abstract: A modular manufacturing facility and method of construction includes a plurality of service and equipment modules which are readily sized and oriented to be packaged, shipped to a desired location, assembled and connected to local resources to form a fully operational assembly or build facility substantially or wholly independent of any resident building structure at the selected site.

Abstract: In a method for servicing an apparatus having a compressor (22) mounted to a support structure (32, 38, 40), a guide structure (102, 104; 202, 204) is placed adjacent to the support structure. The compressor is lifted from an installed position. The compressor is withdrawn by rolling the compressor along the support structure and guide structure.

Abstract: A vehicle body assembly and sequencing system includes the advantages of a batch vehicle body build sequence with the advantages of a random sequence of vehicle body styles transferred to a painting area. The build system includes using automated guided vehicles which transfer and store assembled, un-painted vehicle bodies in a storage area and sequentially transfers selected bodies from the storage area to the painting area achieving a random or variable supply of different vehicle bodies to be painted a certain color.

Abstract: A gas turbine engine includes a compressor having first annular connection structure at a forward end portion of an air inlet housing of the compressor. The gas turbine engine may also include intake ducting having second annular connection structure adjacent a central passage of the intake ducting. The first annular connection structure and the second annular connection structure may form at least part of an interface between the air inlet housing and the intake ducting during operation of the gas turbine engine. The first and second annular connection structures may have shapes allowing the first annular connection structure to be moved through and beyond the second annular connection structure in a forward direction, the forward direction being opposite a direction of compressed air flow in the compressor during operation.

Abstract: Systems and methods for the automated installation of solar (photovoltaic or PV) modules is disclosed. Embodiments comprise a conveyor system configured to support and deliver a plurality of photovoltaic modules, and a clampless mounting framework comprising an upper rail and a lower rail, the upper and lower rails configured and spaced apart to receive and secure a photovoltaic module. The mounting framework does not require clamps, so once the modules are delivered into place, physical installation is complete.

Abstract: A power system includes a gas turbine engine, which may include a gear box. The gear box may include a pipe connection configured to receive a removable pipe. The power system may also include a moveable support configured to fasten to the pipe connection to at least partially support the gear box.

Abstract: A manufacturing cell has a plurality of stations arranged in two rows having a main aisle therebetween. Each of the plurality of stations has a station-aisle interface that provides an interaction area to the main aisle. The manufacturing cell also comprises a plurality of storage units that are located within the cell along the main aisle and a guided forklift truck that traverses the main aisle without requiring steering control of a stock handler operating the forklift truck within the main aisle to relocate containers from the storage units to designated station-aisle interfaces and to remove containers from the designated station-aisle interfaces when work is completed at the corresponding stations. At least one of the plurality of stations having two conveyors each having a tiltable platform such that each of the two conveyors can be used to receive and return containers.

Abstract: An assembly method is capable of assembling a transfer mechanism which transfers a target and includes a pick unit for holding the target, a slide unit for sliding the pick unit and a drive unit for driving the slide unit. The assembly method includes installing a lifting mechanism for lifting the units at a ceiling portion of a transfer chamber where the transfer mechanism is accommodated; and assembling the units loaded into the transfer chamber inside the transfer chamber by using the lifting mechanism.

Abstract: A vehicle assembly line includes a plurality of carriers that support respective vehicle bodies to which vehicle underbody parts, which are parts that are fitted to the vehicle bodies from below the vehicle bodies, are fitted, and convey the vehicle bodies along the vehicle assembly line. The carriers support the vehicle bodies in such a manner that the longitudinal direction of each of the vehicle bodies is perpendicular to the conveyance direction in which the vehicle bodies are conveyed.

Abstract: A production line for vehicles of different models is disclosed, wherein vehicle bodies for ordinary automobiles and vehicle bodies for compact automobiles are incorporated on the same production line, and multiple components are installed. Two compact vehicle bodies are carried on a conveyance device which is designed for carrying a single ordinary vehicle body. The number of components of a compact automobile is approximately half the number of components of an ordinary automobile, and therefore compact automobiles can be produced efficiently without any downtime.

Abstract: A device is provided for repairing a damaged location in an underwater region of a wall of a vessel or pool, in particular in the region of a wall of a pool of a nuclear reactor plant. The device includes a guiding system, which can be attached along a side wall at a distance therefrom and can be fixed thereto, for guiding a carriage which can be made to move in a longitudinal direction of the guiding system. Arranged on the carriage is a displaceably mounted holder for a repair support, which can be placed with an adhesive surface against the wall region containing the damaged location. With such a device, wall regions that are at a great depth and can only be accessed through narrow gaps can be repaired quickly and reliably.

Abstract: A changeover device (8) is provided for tenter frames (5,6,7) in a treatment station (1) for vehicle bodies. The changeover device comprises at least one frame store (9,10) that can be rotated about a rotational axis (11) and is arranged at a distance from a working point (39), and a transport device (17) provided with a guide (18) and a controllable towing device (28) for the tenter frames (5,6,7). The transport device (17) has a guide (18) on the bottom side, for transporting the tenter frames in a vertical position, and also comprises a bottom-side or lateral stabilizing device (64). A towing device (28) for the tenter frames (5,6,7) is arranged in the bottom region of the transport device (17) with at least one driven carriage (29,30).

Abstract: A method and apparatus for providing motor vehicle sub-assemblies with unrestricted model mix and quick changeover between models. The apparatus includes a track; a carriage mounted for longitudinal movement along the track between first and second positions; and first and second turrets rotatably mounted on the carriage at longitudinally spaced locations and each including a plurality of circumferentially spaced individual faces and unique tooling fixtures on the respective faces for receiving unique work piece components corresponding to a plurality of motor vehicle body styles.

Abstract: A mattress material removal device for bedding mattresses comprising a fixed base member 15 in FIG. 4 with at least one side panel 4 and 5 in FIG. 1, at least one overhead portion 14 in FIG. 3 and at least one guide rail 2 in FIG. 1 adapted to secure and guide the mattress over the base member 15 as it moves through the removal device; at least one brush member 12 in FIG. 5 that makes contact with the top, bottom and side of the mattress; at least one suction member 6 in FIG. 5 positioned in close proximity to at least one brush member 12; at least one sprinkler device that is positioned in close proximity to the brush member 12; a conveyor mechanism 7 and 10 in FIG. 2 which is adapted to move the mattress so that it is in contact with the components of the removal device; a control device 16 in FIG. 5 that has at least one switch which is adapted to activate and de-activate one or more features of the mattress material removal device.

Abstract: A board removal apparatus for a wooden pallet includes a frame, and a carriage carried by the frame. The carriage includes a pair of spaced apart tables with a fixed gap therebetween. The carriage is movable between a pallet receiving position and a board removal position. The pallet includes spaced apart stringers and boards on top and bottom surfaces thereof. The pallet is positioned on the carriage when in the pallet receiving position so that a board to be removed overlies the fixed gap. A board removal assembly is carried by the frame and includes a push rod and a board removal foot pad pivotally coupled thereto. The push rod and the board removal foot pad are inserted between adjacent stringers when the carriage is in the board removal position. The board removal foot pad overlies at least a portion of the board to be removed and overlies at least a portion of the fixed gap between the pair of spaced apart tables.

Abstract: The processing system (10) serves for processing a moving workpiece (12) by means of an industrial robot (16) that can be rigidly coupled, intermittently, to the workpiece (12) and/or to a movable workpiece carrier unit (14), the industrial robot (16), when in a decoupled operating position (42), being carried by a carrier device (18) that is movable, independently of a workpiece, by means of a drive unit (20) acting with active drive, and, when in a coupled operating position (44), being floatingly mounted relative to the carrier device (18) by means of a floating bearing system (22).

Abstract: A fabrication line that utilizes a jig pallet that is commonly used in processing equipment to efficiently finish and assemble semifinished products of plural shapes. The jig pallet includes a holding member D for holding a semifinished product W and an opening/closing device G1 for opening and closing the holding member D, and allows the semifinished product W to be mounted and dismounted by opening and closing the holding member D with the opening/closing device G1. The jig pallet is transported to processing equipment M1, M2, and M3 to allow the semifinished product to be processed in the fabrication line. An opening/closing driving device G2 that engages the opening/closing device G1 to open and close the holding member is provided along the fabrication line.

Abstract: A system for manufacturing a side panel of a vehicle, the system including upper running rails and lower running rails to provide a movement path of a cart, the cart having a support frame, a transfer roller, and a friction bar provided at a bottom surface of the support frame, wherein the side panel may be mounted on the cart and the cart moves selectively along the upper running rails and the lower running rails, at least a friction drive unit and at least a friction wheel disposed along the upper and lower running rails wherein the at least a friction drive selectively rotates the at least a friction wheel to move the cart by selectively engaging at least one of the friction wheels with the friction bar of the cart, and an external unit supporting an edge portion of the side panel during key welding process.

Abstract: When a lift moves up, the lift is moved by a lifting guide under an urging force of urging means in a direction opposite to a direction of movement of a hanger. Consequently, a synchronizing bar of the lift approaches the hanger and makes contact with a front surface in the direction of movement of the hanger in a sure and also soft manner, thus resulting in synchronization between the hanger and a self-propelled lifting carriage, regardless of a relative speed between the hanger and the self-propelled lifting carriage. Therefore, because no excessive impact is applied to the synchronizing bar and thereby a necessity to provide excessive strength in the synchronizing bar and the neighboring part thereof is eliminated, the self-propelled lifting carriage can be avoided from becoming large in size or being increased in weight. In addition, acceleration, deceleration, and quick stop of the self-propelled lifting carriage also become easy.

Abstract: A cell manufacturing method in which a main operator, who carries out main operations that include a plurality of steps in which parts are attached to a workpiece, is moved along with the workpiece so as to transit a plurality of stations at which auxiliary steps related to the main operations are carried out. A main car is provided on which the workpiece is mounted and on which the main operator rides. A main operation platform apparatus is also provided that has a main operation platform for carrying out the main operations so as to be movable are used, and then when carrying out at least a portion of the main operations in the main car, the main car and the main operation platform are moved in synchrony. Furthermore, a subsidiary car is provided to travel together with the main car so as to be able to transfer parts and/or jigs.

Abstract: An assembly apparatus that includes a frame and a load plate operatively connected to the frame. The load plate is configured to support a workpiece and is selectively extendable from a first position in which at least a portion of the load plate is positioned over the frame, to a second position in which the load plate is extended from the frame such that the workpiece is transferable from the load plate to a sub-assembly.

Abstract: A method for manufacturing an axle is provided. The method includes heating a billet at a heating station to a predetermined temperature, forging the heated billet at a forging station to form an axle, and machining the axle at a machining station to form a machined axle. A product is automatically transported to and from each station using a product transport system, wherein the product includes the billet, the axle and the machined axle.

Abstract: A cell manufacturing method in which a main operator, who carries out main operations that include a plurality of steps in which parts are installed on a workpiece, is moved along with the workpiece so as to transit a plurality of stations where auxiliary steps related to the main operations are carried out. At least a portion of operations in which parts and/or jigs are supplied to a main car are carried out via a main delivery apparatus by using a main car on which a workpiece is mounted and on which a main operator rides, and that travels automatically on a predetermined travel route that transits a plurality of stations. The main delivery apparatus has a main serving position and a main receiving position. Parts and/or jigs that have been disposed at the main receiving position are delivered to the main serving position.

Abstract: A manufacturing cell has a plurality of stations arranged in two rows having a main aisle therebetween. Each of the plurality of stations has a station-aisle interface that provides an interaction area to the main aisle. The manufacturing cell also comprises a plurality of storage units that are located within the cell along the main aisle and a guided forklift truck that traverses the main aisle without requiring steering control of a stock handler operating the forklift truck within the main aisle to relocate containers from the storage units to designated station-aisle interfaces and to remove containers from the designated station-aisle interfaces when work is completed at the corresponding stations.

Abstract: A method of replacing an electrical insulator on a conductor-supporting tower includes the steps of providing an elongate beam spanning the tower between a work site and a helicopter accessible site, a trolley movable on the beam between the sites and an insulator cradle detachably supported by the trolley for supporting the insulator during transport between the sites and to and from the tower via helicopter. The cradle is a partially peripherally enclosed, open-topped structure having a floor, an upstanding rear wall, peripheral walls sloping downwardly from the rear wall to a front wall, an opening in the front wall, an elongate slot in the floor extending rearwardly from the opening, the slot having a width greater than the diameter of an insulator shank but less than the diameter of an insulator skirt, the dimensions of the floor allowing an insulator skirt to lie flat thereon.

Abstract: A method and apparatus for providing motor vehicle sub-assemblies with unrestricted model mix and quick changeover between models. The apparatus includes a track; a carriage mounted for longitudinal movement along the track between first and second positions; and first and second turrets rotatably mounted on the carriage at longitudinally spaced locations and each including a plurality of circumferentially spaced individual faces and unique tooling fixtures on the respective faces for receiving unique work piece components corresponding to a plurality of motor vehicle body styles.

Abstract: A method and apparatus for managing the delivery of component parts and tooling to a robotic welding assembly positioned on a motor vehicle body assembly line. Automatic guided vehicles deliver component parts from a source of parts to a parts staging area on the robotic welding assembly including a substage awaiting area, a substage in-use area and a substage empty area, and further automatic guided vehicles deliver tooling from a tooling management area to the robotic welding assembly whereafter the tooling, upon model changeover, is moved to a tooling use area proximate the assembly line whereafter, upon further model changeover, the tooling is removed from the tooling use area and loaded onto an automatic guided vehicle for return to the tooling management area.

Abstract: An integrated conformal electromagnetic interference (EMI) and/or electromagnetic radiation shield is formed on a plurality of encapsulated modules by attaching a plurality of modules (30-33) to a process carrier (1) using a double side adhesive tape (2), and then sequentially depositing an insulating layer (15) and a conductive shielding layer (16) before encapsulating the modules with a molding compound (17). After removing the adhesive tape (2) to expose a surface of the encapsulated modules, a multi-layer circuit substrate (100) is formed over the exposed surface, where the circuit substrate includes shielding via structures (101-112) that are aligned with and electrically connected to the conductive shielding layer (16), thereby encircling and shielding the circuit module(s).

Abstract: A power system includes a gas turbine engine. The gas turbine engine may include a first portion, a second portion, and a longitudinal axis. The power system may also include a first moveable support engaged to the first portion of the gas turbine engine. The first moveable support may be operable to at least partially constrain movement of the first portion of the gas turbine engine during operation of the gas turbine engine. Additionally, the first moveable support may be operable to at least partially support the first portion of the gas turbine engine as the first portion of the gas turbine engine is moved away from the longitudinal axis independently of the second portion of the gas turbine engine.

Abstract: According to an exemplary embodiment of the invention, pre-assembly and integration of part of an aircraft cabin takes place outside the aircraft structure by means of an assembly device. After pre-assembly, the part of the aircraft cabin is slid into the open section of the aircraft structure where it is installed.

Abstract: A cell for automated assembly operations, in particular for the assembly of parts of multicylinder internal-combustion engines, has manipulator members that are designed for simultaneous assembly of a plurality of elements on a work piece and that are adjustable for varying the distance between the positions of said elements.

Abstract: A transportation tool for transporting, for example, a single composite aircraft fuselage section, including a first spindle weldment mounted on a first tower, and a second spindle weldment mounted on a second tower and configured to couple the single composite aircraft fuselage section to the towers. A first gimbal assembly configured to allow the first spindle weldment to move independent of the first tower, and a second gimbal assembly configured to allow the second spindle weldment to move independent of the second tower.

Abstract: An automotive body transfer method and a transfer system is operable to transfer a vehicle body between a transfer mechanism and a stationary assembly station in an automobile production process. In the method and system hereof, one longitudinal half of each of front and rear pairs of left and right jack-up brackets, formed in lower parts of left and right side sills of the body, is supported by the transfer mechanism, and the other longitudinal half of each of the jack-up brackets is supported by the stationary assembly station, thereby enabling the shape and structure of the transfer mechanism and the stationary assembly station to be simplified.

Abstract: A system for manufacturing homes is provided. An embodiment includes a final assembly facility located proximal to a subdivision where a plurality of the custom homes is to be situated. The final assembly facility is for receiving the planar sections from the sub-assembly plant and for constructing the homes from planar portions according to the production schedule.

Abstract: A quadrail ergonomic apparatus includes two or more pathways designed to permit movement in two or more directions mounted to a static object above a surface. One or more carriages designed to move in two or more directions are disposed within the pathways. Each carriage is suspended above the surface from the pathways and capable of maintaining a workload in place and permitting movement of the workload in at least four directions.

Abstract: A device is provided for repairing a damaged location in an underwater region of a wall of a vessel or pool, in particular in the region of a wall of a pool of a nuclear reactor plant. The device includes a guiding system, which can be attached along a side wall at a distance therefrom and can be fixed thereto, for guiding a carriage which can be made to move in a longitudinal direction of the guiding system. Arranged on the carriage is a displaceably mounted holder for a repair support, which can be placed with an adhesive surface against the wall region containing the damaged location. With such a device, wall regions that are at a great depth and can only be accessed through narrow gaps can be repaired quickly and reliably.

Abstract: The invention relates to a laying vehicle for laying electric lines (8) in the grooves (6) of an inductor (4), for example a longitudinal stator of a maglev railway. The laying vehicle contains a first, preceding vehicle part (11) comprising a bending and offset unit (14) for configuring winding undulations, a second following vehicle part (16) comprising a pressing station (18) for pressing limbs (8a) of the undulations into the grooves (6), the second vehicle part (16) being displaceable in relation to the first vehicle part (11) and a slide (15) that is coupled in a driven manner to the first vehicle part (11), for transferring the undulations to the second vehicle part (16). According to the invention, a delivery unit (27), which is coupled to the second vehicle part (16), is located between the slide (15) and the pressing station (18), said unit receiving the limbs (8a) from the slide (15) and transferring them to the pressing station (18) at essentially constant intervals.

Abstract: Apparatus for precision deploy-attaching beam-mount structure to the outside of an elongate column at plural, defined attachment sites that are distributed and spaced along the length of the column. During use, a column support jig with plural openable/closeable yokes in the apparatus supports a column horizontally for selective rotation about its long axis. A carriage in the apparatus, which holds beam-mount structures to be attached to a supported column, is selectively moveable and position-lockable in defined locations distributed along the supported column between yokes in a pair of spaced yokes to enable precision weld-attaching of the mounts to sides of the column.

Abstract: A device for assembling a composite structure is disclosed. An illustrative embodiment of the device includes at least one carriage track, a linear rail carriage carried by the at least one carriage track, a yoke assembly carried by the linear rail carriage, a linear actuator assembly engaging the linear rail carriage and adapted to move the linear rail carriage along the at least one carriage track and a pair of mandrel cradles pivotally carried by the yoke assembly. Activation of the linear actuator assembly facilitates movement of the linear rail carriage along the at least one carriage track and pivoting of the pair of mandrel cradles with respect to the yoke assembly.

Abstract: A method and apparatus for fabricating upholstered furniture articles and components is disclosed. The method employs an assembly line with work stations. A selected beginning part such as a wooden frame or skeleton is transported along the assembly line using a specially configured fixture or jig to hold the frame or skeleton. At selected work stations, the fixture can be rotated or tilted depending upon the work to be performed. A locking arrangement secures the fixture to the track at each work station.

Abstract: A method for automation of conventional manual operation of setting the work-pieces on the hanger (H) for transporting the work-pieces, which moves such as in the surface treatment equipment (300), so as to provide the labor and power saving effect, to improve the efficiency on the operation, and to further improve the quality of the surface of the work-piece after treatment, comprises the process to separate and align plural work-pieces which are joined and aligned; the process to support the skewer-shaped supporting member (K) supporting plural separated and aligned work-pieces while maintaining the separated and aligned configuration; and the process to hang the skewer-shaped supporting member (K) supporting the work-pieces in the separated and aligned configuration on the hanger (H).

Abstract: An apparatus for bordering mattresses, comprising two mattress bordering assemblies, arranged at upper and at lower levels and provided with superimposed worktables being provided with mattress overturning devices, a mattress distribution assembly arranged upstream of the bordering assemblies to send the mattresses individually to the upper worktable or lower worktable, a chute arranged at the output of the worktable of the upper assembly and inclined to convey the mattresses bordered by the upper assembly toward a receiving table, the chute comprising actuatable movable elements, in order to allow the advancement of the mattresses from the upper worktable toward the receiving table.