Abstract: Techniques for determining authenticity of analog forms such as packaging or documents (117). One of the techniques determines whether the analog form has been made directly from a digital representation (903) or by photocopying or scanning an analog form. The technique makes the determination by comparing (911) an original digital representation of a portion of the analog form with a digital recording (203) of the portion from the analog form and measuring differences in features that are affected by the operations of photocopying or scanning. The original digital representation (105) and the analog form may have a “noisy”, i.e., random or pseudo random pattern. Such noisy patterns may further be used for other authentication purposes, such as determining whether the portion of the analog form that has the noisy pattern has been altered and to carry hidden messages. The noisy pattern may carry a logo or may be. part or all of a barcode.

Abstract: The invention is related to the foundry practice. According to this invention, the method for making castings by directed solidification from a selected point of the melt toward the periphery of the casting comprises forming a casting in a mold having thermodynamic characteristics that allow uniform volume cooling of the melt to be effected to a temperature at which natural solidification processes are completed. To improve the structural isotropy of the casting formed, the cooling is effected at a rate not exceeding 0.5° C./sec. The casting is formed in a nonuniform field of force. The nonuniform field of force is set up by ultrasonic waves focused on a selected point of the melt to form therein a localized elevated pressure zone and to direct the solidification front from the zone toward the periphery of the casting. The nonuniform field of force is sustained in the mold until the cooling casting reaches a temperature at which the natural melt solidification processes are completed as the melt cools.

Abstract: A bearing bush system includes a bearing bush of polyamide that is held on an outer steering shaft with a stopping collar and on the free face of which the one-piece sealing element of thermoplastic elastomer that seals statically with a ring seal as well as dynamically with sealing lips is held in a form-fitting fashion by means of watchtower-like denticulated ribs provided on both sides. The bearing bush system of two plastics forms a single component, requires low manufacturing expenditures, can be easily assembled and also ensures a reliable seal.

Abstract: The invention relates to a device for the ultrasound testing of hot rolling material during the rolling procedure in one of a plurality of rolling stands in a rolling train which are arranged one behind the other, comprising at least two rolls which leave a roll gap between them, there being associated with the rolls ultrasound testing heads which are arranged such that parts of the roll body itself serve as the path along which the ultrasound waves pass on their way to the rolling material to be tested in the roll gap, which is characterised in that the rolls provided with the ultrasound testing heads are adjustable, have a straight transverse profile and a diameter which is a multiple of the width of the roll gap, with the result that a large rolling angle (?) is provided, and these rolls are arranged in one of the first rolling stands of the rolling train.

Abstract: An arc fault detector, as a stand alone device or in combination with a circuit interrupting device such as a ground fault interrupter (GFCI), protects from potentially dangerous arc fault conditions. The device utilizes a line side or load side series connected inductance having an air or magnetic core to generate the derivative di/dt signal of the arc current in the conductor. The derivative signal is fed to an arc fault detector where it is analyzed for the presence of arcing. The device can have two series connected inductors inductively coupled to each other such that the signal from one inductor is inductively coupled into the other inductor for coupling to the arc fault detector.

Abstract: Measurement of a track position is carried out in successive measurement sections (15), wherein the relative track position is registered in each case with the aid of a long chord (17), formed by a laser beam (16), which serves as reference line of a measuring system (9). During this; an angle enclosed by the two long chords (17) of two successive measurement sections (15) is measured in order to thereby obtain a spatial curve reproducing the actual position of the track.

Abstract: The invention relates to a lightweight sound insulating lining (1) for a body component of a motor vehicle, in particular in the form of a lightweight front wall lining, comprising a sound absorbing layer, a sound insulating layer which is directly connected to the sound absorbing layer and substantially air tight, as well as an adjoining foam layer (1.3), wherein the sound absorbing layer (1.1) is made of a porous absorber, preferably a fiber fleece or a foam, which has an air permeability in the range of 150 to 2000 liters/m2s at a test pressure of 100 Pa. The sound insulating layer (1.2) is formed by an integral skin layer of the foam layer (1.3) with a thickness of at least 0.5 mm, and is integrally joined to the porous absorber by back-foaming the porous absorber substantially without foam penetration therethrough. Furthermore, a method for manufacturing such a lining is disclosed.

Abstract: A fully automatic driverless straddle carrier for transporting and stacking freight containers is equipped with several different sensor systems for the vehicle detection and navigation. Laser scanners are arranged at the vehicle for automatically guiding the vehicle over a container stack. In this straddle carrier, one of the absolute sensor systems for the vehicle detection is made up of a local radio detection system, which is arranged on the vehicle as a mobile radio base station, a plurality of radio transponders being stationarily positioned in the traveling area of the working site, an automatic switching device being provided for switching the steering from the automatic steering by navigation to an automatic steering by laser scanners and vice versa, when the vehicle reaches, travels over or leaves a container stack.

Abstract: Trolley for a slidable cantilever gate comprising two L-shaped plates, each provided with a load-bearing wall and a base wall which is extended without interruption from the load-bearing wall by means of a substantially orthogonal fold. The load-bearing walls are rigidly connected by means of screws or rivets with the two base walls oriented in opposite directions so as to form a support base on ground. Each load-bearing wall is provided with two first through openings aligned with respective corresponding first openings of the other load-bearing wall so to jointly define two first seats adapted to house first rotatable support means for two pairs of support wheels; and with a second through opening aligned with that corresponding on the other load-bearing wall so to jointly define a second seat for receiving a guide wheel, rotatably supported by second rotatably support means.

Abstract: The invention relates to a self-opening hand tool (1) with two tool halves (2, 3) that cross over each other at a joint (4), in particular in the form of a pair of pliers, scissors or the like, with one half of the tool (2, 3) forming a jaw (5) on one side of the joint (4) and a handle (6) on the other side of the joint (4), with a spring element (8) of elastically deformable rubber or plastic material also associated with a handle (6), which has an opening (9) through which the handle (6) passes, and that can be moved into at least one operating position at will by turning it from a non-operating position, in which operating position the spring element (8) contacts the opposite handle (6) depending on the spread angle of the handle (6) and the generation of the appropriate restoring force.

Abstract: The combustion system for implementing the process has a combustion grate, hoppers below the combustion grate for supplying primary combustion gas through the grate and nozzles that lead into the furnace above the combustion grate to supply secondary combustion gas. At least one extraction duct for flue gas is provided at the rear end of the furnace above the combustion grate. This duct is connected to the suction side of a fan. The pressure side is connected to nozzles arranged in the upper area of the flue gas pass. The nozzle height allows the flue gases a residence time of at least 1 second after secondary gas is supplied.

Abstract: A film bag formed by folding a film has a front surface, a back surface, a laid-in first side fold, and a laid-in second side fold. The bag is closed off by a longitudinal sealing seam and a head sealing seam. The head sealing seam has a step shape, with a first head sealing seam segment extending from the outside edge of the second side fold to the ends of the re-closure strip attached to the inside of the front and back surfaces, and a second head sealing seam segment that follows the first in step shape and connects a bag segment that projects upward, at the edges, forming a seal, and extends to the outside edge of the bag, along the first side fold. The projecting bag segment can be removed entirely or in part, along a separating line disposed above the re-closure strip.

Abstract: An arrangement has a turbomachine, a cooler, and a carrying frame that accommodates the turbomachine and the cooler, with frame segments. The cooler has at least one essentially pipe-shaped cooling element disposed horizontally, and the frame segments are disposed at a distance from one another in the longitudinal direction of the cooling element, and have contact points on the underside to support the arrangement on a floor surface or a base frame. The at least one cooling element is attached to the frame segments by way of flexible sections for accommodating thermal deformations of the cooling element.

Abstract: Interdental brush with an elongate brush body (12) which comprises an elastically compressible coupling member (19) for snapping-in in a receiving opening (18) of a brush handle (13); wherein the coupling member (19) comprises at least two expanding arms (27, 28) which are elastically movable towards each other; the coupling member (19), on its outer side, comprises a snap-in depression (26) in the region of the expanding arms (27, 28) for a positive-locking fit in the receiving opening (18) of the brush handle (13), the depression being delimited by shoulders (29) extending at right angles to the longitudinal axis of the brush body.

Abstract: A horizontal conveyor for transporting bulk materials, in particular of containers for food, has at least one conveyor belt encompassing at least one assembly surface for the material to be conveyed. There is at least one sliding part, which is moveably guided parallel to the conveying direction thereof, be arranged below the assembly surface of the conveyor belt. At least one drive is assigned to the sliding part for its positively driven motion. There is at least one height-adjustable actuator for the material to be conveyed, arranged on the sliding part. The actuator is capable of being brought into an entrainment position, that projects into the plane of the assembly surface by means of a lifting device. A discontinuous conveyance of materials is possible in a simple manner with this horizontal conveyor.

Abstract: A head strap for helmets, particularly welders' helmets, is configured in three parts and can therefore be provided with a separate forehead band. The head strap offers the possibility of connecting the helmet with the head strap in resilient or fixed manner, and, in this connection, of displacing the helmet relative to the head strap and/or rotating it between defined positions. Additional convenient adjustment possibilities for the back-of-the-head band and the head band are also implemented.