Abstract: The method for manufacturing cold-rolled steel sheet comprises the steps of: rough-rolling a slab using a rough-rolling unit; finish-rolling the sheet bar using a continuous hot finishing-rolling mill; cooling the hot-rolled steel strip on a runout table; coiling thus cooled hot-rolled steel strip; and applying picking, cold-rolling the hot-rolled steel strip, and final annealing to the cold-rolled steel strip.

Abstract: A manufacturing method, particularly a heat treatment method of a Ni-based alloy having sulfidation-corrosion resistance used for component members of corrosion-resistant high-temperature equipment, that is, Waspaloy (a trademark of United Technologies) or its improved Ni-based alloy wherein the high temperature sulfidation-corrosion resistance of the alloy can be improved while maintaining hot strength properties is disclosed. A Ni-based alloy used for the method consists essentially of 0.005 to 0.1% C, 18 to 21% Cr, 12 to 15% Co, 3.5 to 5.0% Mo, not more than 3.25% Ti and 1.2 to 4.0% Al (expressed in mass percentage), with the balance substantially comprising Ni. In the manufacturing method of a Ni-based alloy having improved sulfidation-corrosion resistance, the alloy is, after solution heat treatment, subjected to stabilizing treatment at a temperature not lower than 860° C. and not higher than 920° C. for 1 to 16 hours, and aging treatment at a temperature not lower than 680° C.

Abstract: A pulley tyre (10) and rim (12), the rim (12) comprising two rim halves (14, 16) adapted to be mounted to a hub (18) and to clampingly engage the pulley tyre (10), the pulley tyre (10) having provided thereon one or more upstanding members (46), wherein the rim halves (14, 16) are adapted to receive the upstanding members (46) when engaging the pulley tyre (10) so as to minimise relative movement therebetween.

Abstract: The tire reinforcing member of the present invention comprises (a) at least one composite layer comprising a rubber composition and steel cords, and, optionally, (b) at least one rubber composition layer comprising a rubber composition, which adjoins to the composite layer. A basic inorganic filler is compounded into at least one rubber composition layer which constitutes the tire reinforcing member. The tire reinforcing member greatly enhances the endurance of a pneumatic tire by dramatically improving the resistance to loss of steel cord-to-coating rubber adhesion without affecting the initial adhesion.

Abstract: Disclosed are polyester multi-filamentary yarn useful as a reinforcement for tires and a dipped cord formed therefrom. The polyester multi-filamentary yarn comprises at least 90 mol % of polyethylene terephthalate and has an intrinsic viscosity of 0.70˜1.2 and a tenacity of 5.5˜8.5 g/d with an intermediate elongation difference (E1−E0) between intermediate elongations E0 and E1 amounting to 6% or greater. The polyester dipped cord is produced by subjecting at least two strands of polyester multi-filamentary yarn to first twisting and second twisting, the polyester multi-filamentary yarn comprising 90 mole % of polyethylene terephthalate; forming the strands into a fabric; and treating the fabric with blocked isocyanate and resorcinol formaldehyde latex (RFL), wherein the cord satisfies the following characteristics: a) a tenacity of 5.0 g/d or greater, b) a dimensional stability index (E4.5+SR) of less than 7.

Abstract: An ultrasonic seam welding apparatus for seam welding at least two sheetlike work pieces piled one above the other by imparting ultrasonic osculation is expressed through the ultrasonic binding and cutting quill assembly. The ultrasound seaming and cutting apparatus comprises a receptive resonant horn or wheel for receiving a rotating anvil wheel and a cutting surface thereon. An apparatus and receiving component having overlapping surfaces and welding the components together with the use of ultrasound. An ultrasound emitter and wheel receives the high frequency current and converts it into mechanical ultrasonic vibrations having the same frequency.

Abstract: A method for bonding a sensor carrier plate having an adhesive layer to a vehicle window includes heating the adhesive layer by a heating device and pressing the carrier plate against the vehicle window for a predetermined time by a contact-pressure device. To reduce the risk of air inclusions between the adhesive layer and the vehicle window, the contact-pressure device initially brings the carrier plate with its adhesive layer into point or linear contact with the vehicle window and then, immediately after this, into extended-area contact with the vehicle window until full contact is achieved.

Abstract: A method of preparing a vehicle panel assembly for attaching the panel to a vehicle is disclosed which provides a “ready-to-install” panel assembly. The panel assembly includes first and second spaced sides, with the bead of heat activated adhesive provided on the second side of the panel. The panel and bead are heated preferably by applying shortwave and longwave infrared radiation, with the shortwave infrared radiation being applied to an adhesive free side of the panel to heat the panel and, thereby, indirectly heat the bead of the heat activated adhesive. The longwave infrared radiation is applied to the adhesive side of the panel to directly heat the bead and thereby activate the adhesive. The ready-to-install adhesive may be applied on or adjacent to a gasket, such as a polyvinyl chloride (PVC) molding, a urethane molding, or the like.

Abstract: A method of making a green tire comprises: winding a carcass ply of rubberized cords around a building drum into a substantially cylindrical body; pressing the cylindrical body against the building drum through the entire circumference not to allow the carcass cords to move axially and circumferentially of the drum; constricting edge portions of the substantially cylindrical body so that the outer diameter thereof is decreased; setting a bead core around each of the constricted edge portions; folding back the edge portions around the bead cores; releasing the cylindrical body from the pressing against the building drum after the edge portions are constricted at the earliest; and swelling a main portion of the cylindrical body between the bead cores while decreasing the width between the bead cores.

Abstract: A flexible electrostatographic imaging member belt comprises two ends with matching puzzle-cut fingers arranged to be joined. The belt is fabricated by a method comprising the steps of: first, joining the two belt ends to form a juncture; second, applying an adhesive layer to the juncture; third, applying a compressing force to the adhesive layer; fourth, heating the adhesive layer for a heating period; fifth, cooling the adhesive layer for a cooling period; thus forming a puzzle-cut seam; and, sixth, determining when the puzzle-cut seam is satisfactory. When it is determined the puzzle-cut seam is not satisfactory, the heating and cooling steps are repeated. When it is determined the puzzle-cut seam is satisfactory, the compressing force is removed. In one embodiment, the method determines when the puzzle-cut seam is satisfactory based on the total time heat is applied to the adhesive layer.

Abstract: To prevent formation of a welding bead in the area of the weld on at least one wall when hollow section strips (1) are being joined by butt welding, on at least one wall of the ends of the hollow section strips (1) to be joined to one another by welding, edges (7) are produced which are set back relative to the end faces (5) of the hollow section strips (1) and the ends of the hollow section strips (1) are moved so close to one another in the execution of the welding process that the edges (7) touch and the welding process ends as soon as the edges (7) touch one another.

Abstract: The invention relates to a method for producing decorative panels for use in vehicle interiors. A layer 3 of plant components, such as leaves 6, is glued onto a metal or plastic carrier 1, whose shape allows it to be mounted to dashboards and/or the side panels of the interior; a transparent varnish layer 4 is then applied to the layer of plant components.

Abstract: A process and device are described for producing a continuous tubular film from a flat film web which is shaped by a shaping arrangement into a tubular film that is open on the longitudinal side with overlapping edges, the tubular film being continuously supplied to a sealing arrangement which welds the overlapping edges of the film on the longitudinal side to one another. The invention is distinguished by the fact that welding of the edges of the film in the sealing arrangement is effected by the application of hot air.

Abstract: A laminated pocket or card, in which is to be legibly housed a sheet of paper or a photograph, is produced in that on in each case one side of two identically large pieces of polypropylene or polyethylene film, is applied a thin adhesive coating.

Abstract: A new form of printed material, referred to herein as a booksert, provides printed information concerning commercial products, such as drug products and the like. The booksert is preferably formed from a single sheet of material that is printed, folded, glued and trimmed to form a multi-page booksert. The booksert can also include a removable insert.

Abstract: The invention relates to a process for bringing about a permanent connection between at least two components, one of which components is obtained by molding of a thermoplastic elastomeric material, characterized in that the component is subjected to a treatment comprising the following steps:

Abstract: A cellular phone top cover includes a foil-decorating film (1) including an uppermost layer comprised of a transparent base film (3) and, laminated thereon, a symbol layer (6) for displaying characters or symbols and a colored layer (7) defining a transparent display window (21) of a cellular phone display, and a transparent adhesive layer (15) laminated thereon. The foil-decorating film is bonded via the adhesive layer (15) to a transparent resin molded article (17) of a cellular phone top cover shape having a voice output through-hole (22) and push button through-holes (23), and the foil-decorating film (1) on at least the voice output through-hole (22) has been removed.

Abstract: The present invention comprises a method for producing a tube preform using an injection molding method. The inventor of the present invention has found that in the case of using an injection molding method to produce tube preforms which can be constructed with either one layer or a plurality of layers, and of subsequent extension, in particular by heating the preform, and biaxial expansion by means of compressed air, a tube can be obtained which, on the one hand, has a tube shoulder with the strength required by industrial thread and, on the other hand, has a lateral surface which exhibits the softness desired for a tube.

Abstract: Disclosed herein is a variable lamination manufacturing process and apparatus. The method comprises the step of coating strip-shaped material with an adhesive while the strip-shaped material is fed. Thereafter, the strip-shaped material being fed is cut into material pieces of a variable width, variable inclinations and a variable length in accordance with the three-dimensional computer aided design data of a three-dimensional product using a linear heat source. The cut material pieces are stacked on a moving table to be positioned in the corresponding positions of the three-dimensional product. Finally, the stacked cut material pieces are pushed to bond one piece to anther.

Abstract: A conveyor system conveys a plurality of printed products along a path of travel in an imbricated stream and such that a border region of each printed product is exposed by the imbricated overlap. A contrast panel (14), which forms a text panel (12), is applied to the exposed border region of each printed product (10). The contrast panel is provided with the text (18) and the contrast panel forms a contrast with respect to the text (18), with the result that the latter can be immediately seen and read easily. In one embodiment, the contrast panel is applied by printing, and in another embodiment, the contrast panel comprises a separate label which is adhesively applied.

Abstract: A simplified pressure sealing apparatus for acting on business forms having pressure activated cohesive to seal the cohesive has only two or three pressure-seal rollers for effecting proper sealing. The pressure seal rollers may receive a folded business form substantially immediately from the output of a folder, or one of the pressure-seal rollers may function to both assist in folding the form, and then pressure sealing it. The form may be held in a flip plate above the nip between first and second pressure-seal rollers, or a separate set of idler nip wheels may hold the form in position once it has passed completely through the sealing nip. In either case the form may pass completely through the sealing nip yet be moved through the sealing nip in the opposite direction, and then diverted to a stack.

Abstract: A semiconductor chip module uses a silicone adhesive between the semiconductor chip and a cap, said adhesive having sufficient bond strength to secure said cap to said chip without additional mechanical constraint while providing a direct thermally conductive path and permitting sufficient heat flow from said chip to said cap to maintain steady state operation of said semiconductor chip. The preferred silicone adhesive comprises a primerless, two-part polysiloxane-based adhesive made by reacting polydimethyl siloxane, an organosilicon compound, a polysiloxane, and a silane, in the presence of a catalyst.

Abstract: A method for producing integral capacitance components for inclusion within printed circuit boards. Hydrothermally prepared nanopowders permit the fabrication of a very thin dielectric layers that offer increased dielectric constants and are readily penetrated by microvias. Disclosed is a method of preparing a slurry or suspension of a hydrothermally prepared nanopowder and solvent. A suitable bonding material, such as a polymer is mixed with the nanopowder slurry, to generate a composite mixture which is formed into a dielectric layer. The dielectric layer may be placed upon a conductive layer prior to curing, or conductive layers may be applied upon a cured dielectric layer, either by lamination or by metallization processes, such as vapor deposition or sputtering.

Abstract: The invention relates to aqueous polymer dispersions suitable as reactive resin component (A) for a two-component reactive system.

Abstract: A plasma is generated by feeding an antenna with radio-frequency electric power generated by a radio-frequency power source, and one end of the antenna is grounded to the earth through a capacitor of variable capacitance. A Faraday shield is electrically isolated from the earth, and the capacitance of the variable capacitor is determined to be such a value that the voltage at the two ends of the antenna may be equal in absolute values and inverted to reduce the partial removal of the wall after the plasma ignition. At the time of igniting the plasma, the capacitance of the capacitor is adjusted to a larger or smaller value than that minimizing the damage of the wall.

Abstract: An adhesive curing apparatus and method utilizes the end of a tube or optical fiber extending from a UV light source. The tube end is inserted into the mounting hole in the side of a pivot assembly. The tube projects concentrated UV light into the interior of the assembly for curing the adhesive used to bond the bearings to the shaft and the housing. The tip at the end of the tube has beam splitting mirrors or prisms to distribute the UV light more effectively. The interior of the assembly, including the outer surface of the shaft and the inner surface of the housing are smooth, polished metal to further enhance the intensity of the light incident on the adhesive.

Abstract: A weld wheel assembly for disposition on a membrane welding machine, and for positioning a weld wheel adjacent a nozzle hot air outlet for pressing an overlying roof membrane heated by the nozzle against an underlying roof membrane heated by the nozzle, for welding the membranes together. The assembly includes a weld wheel rotatably mounted on an axle which is moveable toward and away from the membranes, and pressure exerting structure mounted on the machine and operable to bias the axle toward the membranes during operation of the machine.

Abstract: A device for the positioning of a label, having a central aperture and peripheral edge, onto a surface of a disk, having a central hole and an outer edge including three components:

Abstract: An expandable and contractible cellular panel 10 comprises a plurality of parallel, aligned, elongated tubular sections 12 secured together at the median region of their adjacent longitudinal margins to form the panel 10. The adjacent tubular sections 12 of the panel 10 are made of a pair of substantially identical separate strips of sheet material from those forming the other adjacent tubular sections 12. The various adjacent pairs of strips are laminated together along their confronting longitudinal margins. Each strip is made of at least two separate flexible substrate sheets 18,20 having completely different appearances, and are secured together by welding together their longitudinal margins.

Abstract: A process for producing high bulk cellulosic fiber exhibiting a durable elevated curl index includes: (a) concurrently heat treating and convolving cellulosic fiber pulp at elevated temperature and pressure at high consistency under conditions selected so as to preclude substantial fibrillation and attendant paper strength and fiber bonding development; and (b) recovering the pulp wherein the length weighted curl index of the treated fiber is at least about 20% higher than the length weighted curl index of the fiber prior to the heat treatment and convolving thereof. The curl imparted to the fiber persists upon treatment for 30 minutes in a laboratory disintegrator at 3000 rpm at 1% consistency at a temperature of 125° F. Moreover, the curl may be imparted to the fiber in a disk refiner at very short residence times, on the order of several seconds or less. In general, the process is carried out in the presence of saturated steam at a pressure of from about 5 to about 150 psig.

Abstract: A method for producing a pulp molded article (7) comprising the steps of supplying a pulp slurry into the cavity (1) of a mold (10) composed of a set of splits (3 and 4), the set of splits (3 and 4) being assembled together to form the cavity (1) with a prescribed configuration, to form a pulp deposited body (5), feeding a fluid into the cavity (1) to press the pulp deposited body (5) onto the inner wall of the cavity (1) for dewatering.

Abstract: A method for machining a sand core, a cope, a drag or other molding element from a block of sand held together by binder material for use in foundry metal casting operations. The sand block is cut preferably with a diamond or carbide cutting bit of a computer numerical controlled (CNC) machine tool to cut a pattern into the sand block. A machine tool may be a mill, lathe, drill press, or other machine tool as appropriate. The sand block may be clamped in a variety of positions, and reference points are used to locate the sand block during each subsequent clamping and reclamping of the sand block to the various machine tools. The machined sand core is then inserted into a mold and used in foundry operations to create an internal cavity in a metal casting.

Abstract: A method of joining a lamination stack of an electromagnetic actuator to a housing of the actuator includes providing a lamination stack having at least one surface feature. A mold is provided to define the housing. The lamination stack is inserted into the mold such that the surface feature of the lamination stack will define a mating surface feature in the housing. Material is cast around at least a portion of lamination stack to define the housing such that the surface feature of the lamination stack is engaged with the surface feature of the housing, thereby joining the lamination stack to the housing. The assembly of the lamination stack and housing is then removed from the mold.

Abstract: A die-casting machine provided with a sleeve through which molding material is injected into a cavity formed by a pair of mold dies, an injection plunger slidably mounted in the sleeve, an injection cylinder having an injection piston connected through a piston rod with the injection plunger, and a boost cylinder formed with an inner diameter larger than that of the injection cylinder and mounted adjacent to the injection cylinder thereon in a side opposite to the piston rod, wherein the injection cylinder and boost cylinder are communicated with a conduit connected to each hydraulic chamber on a piston rod side of the cylinders and connected to a flow rate control valve arranged on a side of meter out with respect to the cylinders, thereby controlling a speed of the injection plunger in accordance with a flow rate of pressurized oil flowing in said valve, wherein the machine further provides a switching valve for supplying pressurized oil to the boost cylinder when reaction forces acting on the injection plu

Abstract: Method and device to control the axial position of Slabs emerging from continuous casting applied in rolling plants comprising at least a casting machine (11), a heating and/or temperature maintenance furnace (15) and a roughing and pre-finishing (16) or finishing train (19) comprising at least one rolling stand (17), the method serving to align the axis (32) of a slab (24) entering the furnace (15) with the axis (25) of the first rolling stand (17), the method providing to control the axial position of the slab (24) and to activate at least a thruster element (26) able to be introduced inside the furnace (15) to act on the edge of the slab (24) and displace it laterally according to a measured discrepancy between the axis (32) of the slab (24) and the axis (25) of the rolling stand (17), wherein the thruster element (26) has a contact element (28) able to cooperate with the edge of the slab (24) advancing inside the furnace (15).

Abstract: A heat-exchange module has a main exchanger and at least one secondary exchanger, each including a body with fluid-circulation tubes and with a clipping device for fixing the secondary exchanger onto the main exchanger so that the same airflow can pass through the bodies of the said exchangers. The clipping device has at least one comb-shaped component including a fitting device for fitting onto a first of the said exchangers, and at least one first row of teeth having between them, pair by pair, a gap of a shape corresponding to the cross section of the fluid-circulation tubes of the second of the said exchangers, so as to clip the body of this second exchanger onto the comb-shaped component.

Abstract: A bubble cycling heat exchanger is disclosed. A closed fluid loop is in contact with a heat absorbing source through a heat conducting block; the loop has a bubble generator, an expanding area for generating bubbles is installed at loop; the loop is also formed with a guide region from which bubbles is easily separable and a radiator; a heat conducting block of the closed loop is connected to a heat absorbing source; since the overheat of the heat absorbing source will cause the loop to generate bubble; by an unequilibrium formed at the guide region of the loop, the bubbles will separate from the heat absorbing source so that the liquid in the loop flows for transferring heat so that heat is radiated by the fins or other elements of the radiator from the primary element of a computer at the heat absorbing source, the loop operates continuously until a heat equilibrium is achieved.

Abstract: A heat exchanger includes a core adapted to heat air with counter-flowing hot gases. Substantially isothermal hot and cool portions of the core are interconnected by a matrix portion exposed to a temperature gradient. A top sheet is positioned over the core and includes first and second ends and a middle portion between the first and second ends. The middle portion includes a window and compliant ligament portions extending alongside the window and interconnecting the first and second ends. The first and second ends of the top sheet are positioned over the isothermal cool and hot portions of the core, respectively, and the middle portion of the top sheet is positioned over the matrix portion of the core. The compliant ligament portions of the top sheet are deflectable in response to the temperature gradient across the matrix portion of the core to reduce strain on and deflection of the first and second ends of the top sheet.

Abstract: Disclosed are means for improving the service-life of indirect tubesheet type heat exchangers used in chemical reactors, particularly those exposed to reducing, nitridizing and/or carburizing environments. Such means include the use of certain ferrules within the heat exchange tubes and/or weld types used in construction of these heat exchangers.

Abstract: A heat exchanger assembly formed from primary structure comprising

Abstract: A heat exchanger includes a pair of manifolds, each of which has a plurality of axially spaced oblong slots, and each of which has at least two detents formed therein. A plurality of generally flat tubes extends between the manifolds and individually through the slots for providing fluid communication between the manifolds. A plurality of radiation fins extends between adjacent flat tubes. A plurality of brackets is provided for mounting the heat exchanger. Each of the brackets comprises a first member and a second member, and each of the first member and the second member including a curved portion and a flange portion. Each curved portion extends circumferentially around a portion of manifold and captures the manifold therein. Each curved portion has at least one protrusion which extends into one of the detents in the manifold. The flange portion connected to the curved portion.

Abstract: In a refrigerant heat exchanger, a flow direction of refrigerant flowing through tubes in each of first and second units is opposite to that flowing through tubes in each of third and fourth heat-exchanging units arranged at upstream air sides, the flow directions of refrigerant flowing through first header tanks for distributing refrigerant into the tubes of the first and fourth units are the same, and the flow directions of refrigerant flowing through first header tanks for distributing refrigerant into the tubes of the second and third units are the same. Accordingly, even when a flow direction (flow rate) of refrigerant is small, a uniform temperature distribution of air can be obtained in the refrigerant heat exchanger.

Abstract: Apparatus for promoting heat transfer between a first volume (chamber volume) and a second volume (expandable, substrate support platform volume). Specifically, the apparatus comprises: a chamber defining a chamber volume that contains a chamber atmosphere, e.g., a partial vacuum; a substrate support platform that defines an expandable volume that contains a heat transfer medium, e.g., air; and a seal that isolates the chamber volume from the heat transfer medium. The substrate support platform further comprises: a substrate support platen that has a first surface located within the chamber volume and a second surface located within the expandable volume; a housing sealed to the second surface of the substrate support platen; and a expandable member such as a bellows, attached to the housing, to provide for expansion of the expandable volume that is defined by the housing and the bellows. The housing is typically fabricated of metal and the substrate support is typically fabricated of ceramic.

Abstract: A tool activating system includes a multiple control units coupled to activate devices in a tool string positioned in a well. A processor is capable of communicating with the control units to send commands to the control units as well as to retrieve information (such as unique identifiers and status) of the control units. Selective activation of the control units may be performed based on the retrieved information. Further, defective control units or devices may be bypassed or skipped over.

Abstract: A gripper block for use in an endless chain in a device for moving a generally cylindrical object longitudinally, as into or out of a well. The block has a first portion adapted to engage the endless chain and a second portion adapted to frictionally engage the object. At least a portion of the block is made from a resilient material that engages the tubing.

Abstract: A surface pump assembly having a pressure vessel containing a submersible pump and an industrial motor located at least partially external to the pressure vessel having a shaft or seal thrust chamber extending at least partially into the pressure vessel to connect to pump. The pressure vessel has an inlet connected to a fluid source and one or more bleed off or pressure relief valves. The pump has an intake to receive the fluid and a discharge connected to a discharge conduit.

Abstract: A self-regulating lift fluid injection tool (100) adapted for placement within production tubing (30) is disclosed. The tool (100) has a control valve (126) that controls the rate of injection of a lift fluid (102) into the formation fluids(104) being produced through the production tubing (30). A sensor (140) monitors the flow rate of the formation fluids (104) through the production tubing (30). The sensor (140) generates a signal indicative the flow rate of the formation fluids (104) which is sent to an electronics package (142). The electronics package (142) generates a control signal in response to the signal received from the sensor (140) that is received by an actuator (176). The actuator (176) adjusts the position of the control valve (126) to regulate the flow rate of the lift fluid (102) therethrough in response to the control signal, thereby optimizing the flow rate of the formation fluids (104).

Abstract: A flowline system is disclosed installed within a bottom founded offshore platform having a plurality of conductor guides which are vertically aligned within a wellbay interior and structurally connected to a jacket of the platform. A conductor is supported by the jacket in the wellbay at the conductor guides. A plurality of flowlines are each connected to a remote well and run, together, within the conductor which provides lateral support to the flowlines.

Abstract: A method of setting a packer in a bore comprises the steps: mounting a packer on an elongate support member; mounting a casing scraper (10) on the elongate member; running the packer and the casing scraper (10) into a bore on the elongate member to a section of the bore where the packer is to be set; cleaning the section of bore with the scraper (10); and setting the packer in the cleaned section of bore. The scraper (10) comprises: a mandrel (22) adapted for coupling to the elongate member; a sleeve (14) mounted on the mandrel (22); and a plurality of scraper members (16) on the sleeve (14), the members (16) being radially movable relative to the mandrel (22).

Abstract: A battery-powered hand-guided power tool is provided, such as a hammer, includes a tool housing 3 that contains an electric motor M, a grip housing 2 and a rail-and-channel structure 36, 37, 54, 55 for releasable mounting of a rechargeable battery pack 50. The battery pack 50 is locked in an operative position on the housing 3 in which electrical contacts (51) of the battery pack 50 and associated electrical contacts 42 of the tool housing are electrically connected along a contact length extending in a longitudinal direction of the rail-and-channel arrangement. A latch structure 18,19 located on the tool housing 3 is movable between a latched position and a release position. When the latch structure 18,19 is moved from the latched position into the release position, the battery pack 50 can be moved in the direction of the longitudinal extent of the rail-and-channel structure 36, 37, 54, 55 out of the operative position and can be removed from the tool housing 3.