Abstract: An impact attenuator, which is arranged to be flexible longitudinally as well as sideways, has a rear part with two wheels, an attenuating part, a front part with two pivot wheels, and a coupling part for connection to a vehicle. The coupling part has a damper for dampening part of the force during a collision against the impact attenuator. During a minor collision against the impact attenuator the collision force is mainly absorbed by the damper. The damper regains after a collision its original position and the impact attenuator can remain operative. During a larger collision against the impact attenuator, the collision forces are also absorbed by the attenuating part.

Abstract: The invention relates to an impact attenuator, which is arranged flexible longitudinally as well as sideways (as a trailer). The impact attenuator (1) comprises a rear part (2) with two wheels (22), an attenuating part (39 and a front part (4) with two pivot wheels (41) and a coupling part (5) for connection to the vehicle (6). The coupling part (5) comprises a damper (51) for dampening part of the force during a collision against the impact attenuator (1). During a minor collision against the impact attenuator the collision force is mainly absorbed by the damper (51). The damper (51) regains after a collision its original position and the impact attenuator can remain operative. During a larger collision against the impact attenuator the collision forces is absorbed also by the attenuating part (3).

Abstract: The invention relates to an impact-attenuating device (1) connected to a vehicle (2), especially a lorry. The impact attenuator (1) comprises a front part (3), an attenuating part (4), a rear part (5), and an extension device (6). The front part (3) is connected to the vehicle (2) in order to, during a collision into the impact attenuator; transfer the forces from the attenuator to the vehicle. The front part (3) comprises two wheels (31), with a pivot function, suspension (32), and a traffic routing board (9). Between the front part (2) and the attenuating part (4) is the extension device (6) arranged. The extension device (6) has a transport position and an operation position. In the transport position the extension device (6) is in its extended position and the attenuating device (4) is moved away from the front part (3). The extension device (6) is connected to the attenuating device (4) via a horizontal joint (63).

Abstract: Impact attenuating device for vehicles with frame side members. The attenuator includes an attenuating part, wheels and a connecting part which connects the device to the vehicle either in an operating position or in a transport position. To be able to transport the attenuator between different roadwork areas easily and in a manner safe for traffic, the impact attenuating device is connected like a trailer to the vehicle when in the transport position.

Abstract: The invention relates to a construction for ventilation of hydrogen gas comprising at least a first metallic layer (1), sensitive to hydrogen embrittlement, a second (2) metallic layer, and a mesh (4), wherein the first layer (1) is joined to the second layer (2), and said mesh (4), forming venting channels (5) through which channels (5) hydrogen can be vented, is joined to, and in between, said first (1) and second (2) metallic layers. The invention further concerns a method for production thereof.

Abstract: The invention relates to an impact attenuating device (1) connected to a vehicle (2), especially a lorry. The impact attenuator (1) comprises a front part (3), an attenuating part (4), a rear part (5), and an extension device (6). The front part (3) is connected to the vehicle (2) in order to, during a collision into the impact attenuator; transfer the forces from the attenuator to the vehicle The front part (3) comprises two wheels (31), with a pivot function, spring system (32), and a traffic routing board (9). Between the front part (2) and the attenuating part (4) is the extension device (6) mounted. The extension device (6) has a transport position and an operation position. In the transport position the extension device (6) is in its extended position and the attenuating device (4) is moved away from the front part (3). The extension device (6) is connected to the attenuating device (4) via a horizontal joint (63).

Abstract: Impact attenuating devices (1) for vehicles (5) with frame side members (9) are used in e.g. roadwork areas to protect road-users, men at work and equipment. The attenuator (1) is connected at the rear or front end of a vehicle (5) which is placed behind or in front of a roadwork. A vehicle having not noticed the roadwork runs into the attenuator (1) which catches the vehicle. To be able to attenuate the great forces arising in collisions, the attenuator (1) must be long and fixedly connected to the vehicle (5). This makes it difficult to transport, and a long overhang easily sweeps outside the own lane when driving through curves. The object of the invention is to provide an attenuator (1) which is easy to transport between the roadwork areas. A vehicle (5), usually a lorry, with frame side members (9) is connected to an attenuator (1) comprising an attenuating part (3), wheels (4) and a connecting part (2).

Abstract: The invention relates to a construction for ventilation of hydrogen gas comprising at least a first metallic layer (1), sensitive to hydrogen embrittlement, a second (2) metallic layer, and a mesh (4), wherein the first layer (1) is joined to the second layer (2), and said mesh (4), forming venting channels (5) through which channels (5) hydrogen can be vented, is joined to, and in between, said first (1) and second (2) metallic layers. The invention further concerns a method for production thereof.

Abstract: A vacuum cleaner tube shaft having a first tube shaped part (11) and a second tube shaped part (12). The first part is slidably arranged in the second part and is adapted to be releasably locked to the second part in a desired position. The second part (12) includes two sections (15, 16) which are connected to each other via a pivot (17). When the first part (11) is inserted in the two sections (15, 16), the two sections are aligned with respect to each other. When the first part is inserted into only one section (15) of the second part, the sections (15, 16) can be positioned in a desired angular position with respect to each other.

Abstract: The present invention relates to a process to limit the content of impurities in the production of alkali metal chlorate, by integrating the production of chlorate with the production of chlorine and alkali metal hydroxide, which auxiliary chemicals are used in the chlorate process. The alkali metal chlorate is produced by electrolysis of a purified electrolyte containing alkali metal chloride, alkalization of the chlorate electrolyte obtained and precipitation of the chlorate formed by evaporation of the chlorate electrolyte. The very pure water separated in the crystallizer and alkali metal chloride is used in a membrane or diaphragm cell in the production of alkali metal hydroxide, which hydroxide is used in the production of alkali metal chlorate. Either pure chlorine or hydrogen chloride absorbed in water can be used in acidification, at which hydrogen chloride is produced from chlorine and hydrogen generated in the process.

Abstract: An improved ink stamp (10) includes an upper housing (12) receiving a stationary stamper element holder (14) and a translatable shield (16) biased downwardly by means of a spring (104) such that the lip (80) extends past the printing surface of the stamp element (20). A cover (18) having side arms (32, 34) joined by a cover face (36) rotates from a first position over the stamp element (20) to a second position over the curved, top surface (24) of the housing (12). The cover may also include means for locking the cover in both positions such as a set of protuberances (62, 64) provided on the side walls (50, 52) of the housing which are received in corresponding detents (66, 68) provided on the inner surface of each side arm (32, 34).

Abstract: A self-inking hand stamp of the type in which stamping is carried out by depressing a handle against the action of a spring for making a surface provided with symbols (letters, figures, etc) engage a substrate for printing said symbols thereon. An adjutable stop is engaged by a member in the handle, thereby determining the relative positions of the substrate and the symbol surface, respectively. Said stop comprises a two-part bushing of variable length.