Abstract: A structure for quickly clipping an advertising curtain includes a first frame, a second frame secured to the first frame so as to form a guide-groove space and a clipping space and at least a fastener arranged in the guide-groove space, wherein the fastener includes a first connecting part and a second connecting part pivoted with the first connecting part, wherein the second connecting part includes a compressible portion laterally extending from two sides thereof at an end of the second connecting part, wherein the compressible portion of the second connecting part has two ends abutting against sidewalls of the guide-groove space such that the first and second frames can be quickly assembled or disassembled due to the guide-groove space being pushed to expand.

Abstract: Snap hooks, particularly snap hooks with a screw lock for mountaineering and climbing are provided. Such snap hooks may include a ring which has a straight side, interrupted by an opening defined by first and second ends, in which the opening is closed by a spring closing element which has an open position and a closed position, the snap hook having a separation lever dividing the space enclosed by the ring in two separate areas wherein the lever is independent from the closing element, and wherein the closing element and the separating lever are hinged to the same hinge.

Abstract: A buckle includes a male member and a female member. The male member includes: a base to which a string member is attachable; a pair of legs that project from the base and are elastically deformable in directions intersecting an insertion direction of the male member; and engaging portions that are provided to the legs and are engageable with the female member. When the male member is inserted into the female member, parts of the legs come into contact with inner walls of the female member to form biasing portions that bias the male member in an opposite-insertion direction using a resilience of the legs.

Abstract: A modular casket made of lightweight materials is structurally reinforced using a structural sealant along at least the inner surfaces of the side panels, and optionally along at least side edge portions of a base panel to which the side panels are coupled, to stiffen and rigidize the casket against flexion along longitudinal and lateral axes, as well as torsional flexion. The structurally reinforced casket is sealed or more readily sealed against leakage and provides other benefits of structural stiffness and rigidity with relatively small cost and weight penalties.

Abstract: A method of producing a nonwoven material by hydroentangling a fiber mixture containing spunlaid filaments, natural fibers and synthetic staple fibers, wherein a first fibrous web (12) of natural fibers and at least 10% by fiber weight manmade staple fibers is wetlaid and hydroentangled in a first hydroentangling station (13), spunlaid filaments (16) are laid on top of the hydroentangled first fibrous web (12) and a second fibrous web (19) including natural fibers is wetlaid on top of said spunlaid filaments (16). The second fibrous web (19) is hydroentangled together with the spunlaid filaments (16) in a second hydroentangling station (20) and the combined webs are reversed and the first fibrous web (12) of natural fibers and manmade staple fiber is hydreoentagled together with the spunlaid filaments (16) in a third hydroentangling station (25).

Abstract: Provided is a manufacturing method for a micro device. The manufacturing method includes forming a micro-electronic-mechanical system (MEMS) movable structure, forming a plurality of metal loops over the MEMS movable structure, forming a piezoelectric element over the MEMS movable structure, and a magnet disposed over the plurality of metal loops. The method also includes encapsulating the MEMS movable structure, the plurality of metal loops, and the piezoelectric element.

Abstract: This disclosure describes a tool or a family of tools which will provide mechanical force to separate pieces, plates, or parts of machinery or other assemblies which, although de-fastened, still resist separation. This is accomplished by utilizing a bolt-like device and a plurality of gripping inserts, which provide separating force between a plurality of plates or similar structures when the device is operated properly.

Abstract: Described here are devices and methods for crimping self-expanding devices. The crimping devices may be useful for crimping a variety of different self-expanding devices (whether such devices are biodegradable or bio-durable). The crimping devices may have crimping members to engage the self-expanding device to reduce the device from an expanding configuration to an unexpanded configuration. The crimping member may comprise or include a suture, wire, ribbon, guiding hoop, pusher, prong, holding bar, balloon, jaws, combinations thereof, or the like. The crimping devices may also include or comprise a holding structure to hold the self-expanding device in an unexpanded or expanded configuration.

Abstract: A tile spacer punch device 10 comprises a rigid elongate body 12, which has a punch element 16 at one end and a grip 18. The punch element 16 has at least three arms 24, each arm 24 is at right angles to an adjacent arm 24. Preferably the arms 24 intersect and may also be in a common plane. More preferable, for of the said arms 24 are provided. Furthermore, the arms may form part of plates, and the plates may taper inwardly away from the grip. An upper surface 22 of the punch head 14 is preferably convexly domed and suitably resilient to accept repeated striking, for example, from a hammer or palm of a user's hand.

Abstract: A pinion disassembly tool is configured to remove a yoke or a flange member and a pinion fastener from a splined pinion shaft in a pinion assembly. The tool includes a yoke holding plate with a central aperture sized to receive a socket wrench during removal of the pinion fastener. The yoke holding plate includes fastener apertures for connection to the yoke and at least one non-circular aperture for receiving a breaker bar during removal of the pinion fastener. The tool also includes a drive plate with a threaded aperture, the drive plate inserted through the central aperture of the yoke holding plate after removal of the pinion fastener. The tool also includes a drive bolt engaged with the threaded aperture and configured to force the drive plate and the yoke holding plate to pull the yoke from the splined pinion shaft as the drive bolt is rotated.

Abstract: A separator tool including a handle formed a hub at a first end, the hub defining a through bore that is transverse to a longitudinal center axis of the handle, a tool head formed with an integral yoke including opposed first and second legs, the tool head being pivotably coupled to the first end of the handle, an indexing stud slidably disposed within the through bores of the hub and first and second legs of the yoke, and the indexing stud being slidable within the through bores between a first position in which the tool head is secured in a fixed position relative to the handle, and a second position in which the tool head is pivotable relative to the handle.

Abstract: A receiver plate-coupler plate assembly for attaching an implement to a machine. The assembly includes a receiver plate member comprising a vertical plate section with at least three perimeter walls extending in a common direction to form a downward facing cavity there between. The vertical plate member attaches to a tool on a plate section surface opposite the perimeter walls. A coupler plate member comprises a vertical plate section positioned against the receiver plate member within the downwardly facing cavity thereof. At least one locking assembly on the coupler plate member reversibly engages the receiver plate member to maintain the coupler plate member within the downward facing cavity thereof. At least one connector assembly secured to the coupler plate member opposite the receiver plate member connects the receiver plate-coupler plate assembly to a machine.

Abstract: A rotation sensor (19) is used for detecting relative rotation between a rotatable member (11, 12) and a non-rotatable member (10) of a bearing unit. The sensor (19) is retained in a sensor carrier body (18) of plastic material and annular shape. An annular supporting insert (17) serves to mount the sensor carrier body (18) onto the non-rotatable member (10) with the sensor operatively facing an impulse ring (15) secured to a rotatable member (12) of the unit. The sensor carrier body (18) and the supporting insert (17) provide a lock and seats (18a, 18c, 18d, 18m, 18n; 17c, 17d, 17m, 17n) for releasably locking the sensor carrier body (18) to the supporting insert (17).

Abstract: The invention relates to a device for inserting and crimping a ring on an attachment rod in a hole, comprising a robot, a monitoring and control system and an end tool designed to crimp the ring on the rod. The end tool includes a crimping device and a ring installation device which are solidly connected to a fine-positioning device, by means of which the end tool is attached to an end element of the robot. A ring insertion subassembly of the ring installation device and a crimping nose of the crimping device can move on the end tool so as to be positioned alternatively on an axis of an attachment to be installed, with no controlled movement of the robot when the end tool has been pre-positioned.

Abstract: One or more crack inhibitors can be installed to improve fatigue performance by producing stress states that prevent or inhibit crack initiation. Crack inhibitors can also prevent or retard crack growth. A mandrel can be used to radially expand the crack inhibitors to both induce compressive residual stresses and to form an interference fit between the crack inhibitor and a workpiece. The mandrel can be removed from the installed crack inhibitor, which is left in the workpiece to ensure proper stress states are maintained.

Abstract: The present invention provides a manufacturing method for a machine tool having a human-machine interface and a program with predetermined manufacturing conditions.

Abstract: Fasteners for producing double blind joints where the fastener is not visible or accessible are provided. The fasteners comprise a shape memory polymer that may be used to fasten workpieces by heating the fasteners, inducing recovery of the original, permanent shape of the fasteners.

Abstract: Weatherstrips (13, 15) having opposed pile sealing elements (226) are installed in opposed slots in a frame member (14) so that the piles may engage opposite sides of a panel, shutter or screen (203), by insertion apparatus having laterally-movable slotted guides (60, 62). The weatherstrips are driven through the slots in the guides by a drive wheel (42). A laterally reciprocating cutter (48) has openings (107, 109), through which the weatherstrips are driven, and shearing edges (98) for cutting ends of the weatherstrips to facilitate entry of the weatherstrips from the slots in the guide into the slots in the frame member. Metering wheel (44) engages at least one of the weatherstrips moving through the guides, and provides for actuation of the cutter, when the desired length of the weatherstrips is driven through the guides; the length corresponding to the length of the frame member which receives the weatherstrips.

Abstract: The invention relates to a punch rivet for connecting two workpieces. The rivet includes a head and a hollow shank having a shank internal diameter (D3), a shank external diameter (D1) and a shank end face. Located at the shank end face is an annular cutting edge with a diameter (D4) that is smaller than the shank external diameter (D1). The shank internal diameter (D3) merges with the annular cutting edge via a cutting edge radius (R2); and the ratio of the cutting edge radius to the shank external diameter R2/D1 is greater than 0.3.

Abstract: A method for making a thermoacoustic module is disclosed. An insulating substrate and a sound wave generator are provided. A conductive paste is screen printed on the insulating substrate to form a first patterned conductive paste layer. The sound wave generator is placed on the first patterned conductive paste layer and at least partially suspended above the insulating substrate by the patterned conductive paste layer.

Abstract: A method for bonding a first substrate to a second substrate is described. The first substrate includes a first plurality of solder pads, a first alignment mark set, and a first plurality of dots. The second substrate includes a second plurality of solder pads, a second alignment mark set, and a second plurality of dots configured to interlock with the first plurality of dots. The method includes aligning the first alignment mark set with the second alignment mark set. The first alignment mark sets being aligned corresponds to the dots and the solder pads being aligned. The method also includes locking the first plurality of dots with the second plurality of dots to form an interlocking key. The method also includes reflowing at least one of the first and second pluralities of solder pads. The dots remain substantially solid during the reflow.

Abstract: Disclosed is a method for manufacturing a sealed contact point by injecting an arc extinguishing gas into an air-tight space of an electromagnetic switching device and sealing it. The method includes forming a driving body and coupling a housing and a plate to form an air-tight space, air-tightly fixing a detachable chamber forming the interior of the chamber under an insulating gas atmosphere, inserting the protruded shaft and core of the driving body into the cylinder and coupling the cylinder to the lower portion of the plate to form a sealing structure, and sealing the plate and the cylinder.

Abstract: A method of fabricating a touch panel is provided. A substrate having a touch-sensing region and a peripheral region is provided. A touch-sensing circuit layer including first sensing series, and second meshed metal sensing pads is formed on the touch-sensing region of the substrate. An insulating layer having first contact windows is formed on the substrate to cover the touch-sensing circuit layer. The first contact windows expose a portion of the second meshed metal sensing pads. A plurality of second transparent bridge lines are formed on the insulating layer located in the touch-sensing region. Each second transparent bridge line is electrically connected to two adjacent second meshed metal sensing pads through two first contact windows. The second transparent bridge lines completely cover the portion of the second meshed metal sensing pads exposed by the first contact windows.

Abstract: A hearing aid (8) comprises an inlet port (6), a sound tube (12) for conveying sound to the ear piece (13). The invention further provides a component for a hearing aid comprising a slab (26) having an exterior surface, which is super-hydrophobic. The component may be any one of a housing, a casing, a shell, a faceplate, a grid, a hook, a lid, a battery drawer, a button, or a manipulator. The invention also provides a method of manufacturing a component for a hearing aid.

Abstract: A system for transferring a nanostructure from a die to a flat side of a large-area substrate. The system has a substrate holder that receives the substrate on a substrate receiving surface. A structural surface of the die is oriented parallel to and opposite the substrate receiving surface. An adjusting means receives the substrate holder and adjusts the position of the substrate relative to the die in an x-direction, y-direction and a rotational direction. An actuator device includes at least two separately controllable actuators that each independently imposes a force in a direction orthogonal to the substrate receiving surface. A force measuring cell is in each actuator for measuring the force applied on the die or substrate. The forces, in combination, produce a single, controllable resultant force at a predetermined location. The single, resultant force is orientated in a direction orthogonal to the substrate receiving surface of the substrate holder.

Abstract: A fabricating process for a multi-layer printed circuit board containing embedded passive components is provided. The method includes a calibration step wherein a calibration measurement is taken of the geometry or at least one electrical parameter of an arrangement of calibration test points for a circuit forming process, such as masking, etching and/or lamination. A process control step is performed during the process, wherein a process control measurement is taken of at least one electrical parameter at one or more process control test points along one or more axes outside areas in which a circuit is to be formed. An analysis is performed of at least the calibration measurement and the process control measurement to calculate a CAD geometry change required to improve precision of embedded passive components to be printed on the multi-layer printed circuit board.

Abstract: A method for manufacturing a printed circuit board including providing a first resin substrate having a resin plate and a circuit pattern formed on a surface of the resin plate, providing a second resin substrate having a resin plate and an accommodation portion formed in the resin plate of the second substrate, connecting an electrode of a capacitor to the circuit pattern of the first substrate with a bonding material such that the capacitor is mounted to the first substrate, attaching the second substrate to the resin substrate through a bonding resin layer such that the capacitor on the first substrate is accommodated in the accommodation portion of the second substrate, and forming a via hole in the first substrate such that the via hole is electrically connected to the electrode of the capacitor in the accommodation portion of the second substrate.

Abstract: In a method of manufacturing a semiconductor device, a second wiring substrate is stacked over a first wiring substrate using a conductive paste, where each wiring substrate has mounted thereon an electronic component. The conductive paste is hardened to form a metal column which forms an electrical connection between the first wiring substrate and the second wiring substrate. The wiring substrates are sealed with a resin. The semiconductor device can be downsized, thinned, and made highly reliable, and its manufacturing cost can be reduced. By using conductive paste for the electrical connection between the wiring substrates, a connecting pitch can be smaller than that in a connecting method of using a solder ball including Cu core, and a connection at low temperature can be achieved. Also, by coating the conductive paste by a print-coating or dispense-coating method, manufacturing is simplified and the manufacturing cost is reduced.

Abstract: A fabricating method of a substrate board is provided. The substrate board includes a substrate having rigid areas and flexible areas, and at least an electronic component disposed on the substrate, wherein each of the rigid areas is thicker than the flexible areas. A patterned high-extensive material may be additionally disposed on the substrate to improve reliability thereof. The rigid areas and the flexible areas may be formed by molds or cutters. By using an above structure, the electronic component is less affected when the substrate is under stress, so that good characteristics are maintained.

Abstract: There is disclosed a method of forming a patterned conductive element for an implantable medical device, the method comprising the steps of: depositing a supplementary material on a sheet of conductive, parent material to form a sheet of composite material; applying a carrier material over the supplementary material of the composite sheet to form a sheet of semi-finished material; removing portions from at least the conductive parent material of the sheet of semi-finished material in accordance with a desired pattern corresponding to a patterned conductive element to be formed; and releasing at least the carrier material from the sheet of semi-finished material.

Abstract: A wire extends through a ceramic body. The wire comprises a material selected from the group consisting of platinum, palladium, rhodium, iridium, osmium and alloys of platinum, palladium, rhodium, iridium, and osmium. The wire directly contacts the ceramic body to form a substantially hermetic seal between the ceramic body and the wire.

Abstract: Provided is an optical fiber connection method for using an optical fiber connector which includes a mechanical splice designed to connect a first optical fiber having a coating diameter D to mechanically connect two optical fibers that include a second optical fiber having a coating diameter d smaller than the coating diameter D. This method includes a first step of inserting the second optical fiber into a tube (30) to obtain a tubed optical fiber (31); a second step of fixing the tubed optical fiber (31) in a fiber holder (15); a third step of inserting the tubed optical fiber (31) into the mechanical splice (2) and placing distal ends of the two optical fibers including the tubed optical fiber (31) end to end; and a fourth step of fixing the tubed optical fiber (31) in the mechanical splice (2) in a state in which the distal ends of the two optical fibers are placed end to end.

Abstract: A diesel piston with a cast bi-metallic dome and a method of making the piston. In one form, the dome may include a laminate of a relatively high-temperature material, for example, stainless steel, and a relatively low temperature material, for example, aluminum or aluminum alloys, such that the portion of the dome made from the relatively high-temperature material is directly exposed to combustion within a cylinder into which the piston is placed. In another form, an aluminum coated stainless steel ring is used to form the dome. In one form, an ablation casting process may be used to manufacture the dome.

Abstract: A method of manufacturing turbine engine casings having at least one boss includes, in one exemplary embodiment, forming an engine casing having an outer wall, machining a tapered opening through the casing outer wall, and machining a tapered portion in a metal plug where the tapered portion is sized to mate with the tapered opening in the casing outer wall. The method also includes inserting the metal plug into the tapered opening in the casing outer wall, and welding the metal plug to the casing.

Abstract: A reactor installation tool and method for installing a reactor unit in a reactor tube. A reactor installation tool including a movable assembly and a fixed assembly linked together such that the movable assembly can be adjusted relative to the fixed assembly. The movable assembly including a reactor sleeve attachment means for releasably securing a reactor sleeve loaded with a reactor unit to the tool. The fixed assembly including an expandable clamping unit for releasably securing the tool to a reactor tube. A reactor unit can be installed in the reactor tube by adjusting the movable assembly to extract the reactor unit from the reactor sleeve as the fixed assembly is rigidly secured to the reactor tube. The fixed assembly can be released from the reactor tube and the reactor installation tool can be removed from the reactor tube.

Abstract: The present invention relates to a method for producing a pipe (1) which is provided in its wall (2) and between its ends with at least one channel (4) which passes through the wall (2), in which method a plastic pipe preform (16) is blow-moulded, wherein a protrusion (17) is provided for the channel (4), this protrusion lining the pipe preform (16) and having inside dimensions which are larger than the outside dimensions of the channel (4), in which method the pipe preform (16) in its as yet unsolidified state is squashed in the region of the protrusion (17) in such a way that a rough channel (21) communicating with the interior (3) of the pipe (1) is formed for the channel (4), this rough channel being closed at its end remote from the interior (3) of the pipe and having, apart from the desired channel length (7), the outside dimension of the channel (4), and in which method the squashed pipe preform (16) in its solidified state is cut in the region of the rough channel (21) in such a way that the channel (

Abstract: A method of mounting a gear train to a torque frame includes providing a unitary carrier having a central axis that includes spaced apart walls and circumferentially spaced connecting structure defining mounts for interconnecting the walls. Spaced apart apertures are provided between the mounts at an outer circumference of the carrier. Gear pockets are provided between the walls and mounts extending to the apertures, and a central opening in at least one of the walls. A plurality of intermediate gears and a sun gear are inserted in the carrier. A first ring gear half is placed about the outer periphery of the intermediate gears, and attach a torque frame to the carrier.

Abstract: Device for securing and locking a display element (1) mounted on a support (3) using at least one assembly element (2) in a direction of assembly (D). The device includes at least one locking element (4) for the assembly element (2) and the locking element (4) is accessible from the visible side (11) of the display element (1).

Abstract: An apparatus comprises a composite elongate member, a channel, and a number of composite structures. The composite elongate member has a side configured for attachment to a surface of a structure. The channel is on the side and extends along a length of the composite elongate member. The number of composite structures is configured for placement in the channel and configured to attach a portion of the side of the composite elongate member to the structure. The number of composite structures has layers oriented substantially perpendicular to the surface of the structure. The number of composite structures is configured to increase a capacity of the composite elongate member to withstand forces that pull the composite elongate member away from the structure.

Abstract: There is disclosed a process of forming reinforcements, baffles and seals having malleable carriers. The process typically includes application of an activatable material to a malleable carrier and contouring of the activatable material the malleable carrier or both.

Abstract: An outer ring and rolling elements are fitted to a shaft portion of a shaft member for a wheel rolling bearing device from a shaft end portion of the shaft member, an inner ring and rolling elements are fitted to the shaft portion, and then the shaft end portion is clinched to form a clinched portion to thereby fix the inner ring. At this time, the shaft end portion to be clinched has a solid columnar shape, and a clinching jig is pressed against the shaft end portion, and the clinching jig is oscillated while being pressed in a direction toward one end side of the shaft portion to thereby increase the diameter of the shaft end portion to clinch the shaft end portion.

Abstract: A vibrating wet shaver that includes a hollow handle, a shaving head borne by the handle, an electric vibrator fixed to the handle for transmitting vibrations to the shaving head through the handle, and a control circuit adapted to adjust a vibration frequency generated by the electric vibrator.

Abstract: A power tool, such as a pipe cutter, includes a rotatable cutting head assembly, an electric motor connectable to a rechargeable battery, and a controller. The controller is configured to monitor the state of charge on the battery, compare the state of charge to one or more thresholds, and prevent or limit operation of the power tool when the state of charge is less than or equal to one or more of the thresholds. In some embodiments, the threshold includes the state of charge required to cut a pipe, the state of charge required to return the cutting head assembly to a home position, and a state of charge indicative of an overdischarged condition of the battery. In some embodiments, the controller is configured to detect when the pipe cutter has completed cutting the pipe and returns the cutting head assembly to the home position.

Abstract: A portable band saw includes a serviceable/replaceable bumper system for allowing the band saw to be easily repaired if damaged from being dropped. An auxiliary handle is adjustably mounted to the band saw and is releasable from its position if subjected to a large force so as to avoid damage to the handle and tool housing. An adjustable guide shoe includes a toolless adjustment. The front and rear section of the band saw are disposed on opposite sides of a polymeric field case. Compression rods are used to isolate compression forces from the polymeric field case. An electric box assembly including a plastic component box is disposed between the field case and a front section of the band saw. A crash guard is mounted adjacent to the field case and includes a sight guide along an edge thereof and a rear blade guard formed integrally therewith.

Abstract: A powered hand tool includes a motor, a cutting member drivable to cut a workpiece, and a drive system interconnecting the motor and the cutting member and operable to drive the cutting member in response to operation of the motor. A housing at least partially encloses the cutting member and the motor and a debris removal system is movable between a first position and a second position. The debris removal system is operable to clean a portion of the drive system when in the second position. The debris removal system includes an abrasive member, an automatic actuator, and a sensor operable to selectively generate a signal. The automatic actuator is movable between an actuated position in which the abrasive member moves to the second position and a non-actuated position in which the abrasive member moves to the first position in response to the sensor.

Abstract: A modular saw arrangement includes a main saw frame structure and a detachable handle structure. A second end portion of the detachable handle structure includes a first blade connector and a second blade connector. A blade tensioner arrangement of the main saw frame structure and the first blade connector are configured to be connected with opposite ends of a blade when a first end portion of the detachable handle structure is connected with an upper frame portion of the main saw frame structure so as to form a hacksaw configuration. The second blade connector that enables attachment of the blade in a grip configuration to enable the detachable handle structure to be configured as a stand-alone detachable handle saw when the first end portion is disconnected with the upper frame portion.

Abstract: A footwear measuring apparatus includes a body, a plurality of probes, one or more measurement devices and at least one calibration sensor. The plurality of probes are configured to extend from the body. The measurement devices are configured to measure distances that the plurality of probes extend from the body, wherein the distances indicate fit parameters of footwear. The at least one calibration sensor is configured to determine if the footwear measuring apparatus is properly positioned inside of the footwear for measuring.

Abstract: A measuring tool is used to measure the shape of a person's body. The tool has a belt and at least one measuring tape attached, which extends perpendicularly to the belt. The tool is held to the person's waist with the belt. While the person is standing, shape measurements are typically made at one or more points based on the measuring tape. This measuring tape extends a length sufficient to include the person's seat and hip, where the shape will be measured, but will generally not be as long as the person's leg or long enough to touch the ground.

Abstract: The provided writer guide facilitates the operator in creating a craft project or scrap book page with the desired aesthetic effect. The writer guide emits a laser beam guide line across a medium in a position desirable to the operator. The operator may utilize the guide line for activities that may include but are not limited to writing, printing, scripting, placing, designing, creating, and positioning of components to achieve an aesthetically pleasing product.

Abstract: An interface and a method for mounting a piece of equipment (5) with a rotary drive source (3). The mounting interface has a first frame (1) fastened to the drive source (3) and a second frame (2) fastened to the piece of equipment (5), the frames (1, 2) being fitted with assembly means (19) for assembling them together. Rails (22, 23) for guiding the piece of equipment (5) are removably mounted on the first frame (1) and co-operate with windows (20, 21) of the second frame (2). The windows (20, 21) are laterally open providing transverse passages for the rails (22, 23) into the windows (20, 21). The piece of equipment (5) can be moved transversely by an operator towards the rails (22, 23) in order to support it and guide it axially towards the drive source (5).