Abstract: A band-pass filter for a waveguide, which additionally serves as a blocking filter for the concerted suppression of interference frequencies. In addition to a centrally arranged aperture (3), a waveguide aperture has two identically designed apertures (4), which are laid out for natural resonance for an interference frequency f (ind S1) to be blocked by the waveguide filter, and are arranged symmetrical to the central aperture opening (3). In waveguide devices, the invention is used to meet the statutory frequency specifications and simultaneously suppress interference frequencies.

Abstract: A packing machine is assembled with one or more control cabinets into a compact aggregate wherein a wall of each control cabinet constitutes at least a portion of the rear wall of the frame of the packing machine. Each control cabinet is movable (such as reciprocable or pivotable) relative to the machine to and from a position in which a portion of or the entire rear side of the machine frame is exposed to afford access to the interior of the machine.

Abstract: A method for clearing outputs of a mail sorting machine concurrently with a current sorting cycle of a mail sorting process is disclosed. At each sorting cycle, each output of the sorting machine is assigned a number of respective delivery locations of the mail items. An indication of the time intervals when the outputs are available or unavailable, is represented by a matrix. Each element in the matrix is assigned a delivery location; and the column and row of each element represents the outputs occupied, by the mail items bearing the delivery location assigned to the box, at the end of the current sorting cycle and the logically preceding sorting cycle respectively. The method provides for defining non-addressable elements to which delivery locations cannot be assigned, so that the outputs may be cleared by a clearing resource at that time.

Abstract: Successive palletized stacks of blanks in a layer of such stacks on a penetrable support of cardboard or the like are lifted off the support by a substantially horizontal plate- or blade-like implement which is caused to penetrate between the upper side of the support and the underside of a selected stack prior to lifting of the selected stack off the support for transfer onto a conveyor or into a blank converting machine, such as a cigarette packing machine. An optical or other suitable monitoring unit has one or more sensors carried by the implement such that they share the movements of the implement to detect, and to effect the generation of defect signals in response to the detection of, improper operation of the apparatus, such as the penetration of the implement through and subsequent lifting of a portion of the support with a selected stack.

Abstract: An apparatus for transporting successive at least partially wrapped blocks of cigarettes or the like, e.g., in a packing machine, employs a mobile block supplying member which advances successive blocks of a series of blocks on top of an opening in a bottom wall at a level below a turntable indexible about a vertical axis and carrying several open-bottom receptacles which are movable radially of the axis. An empty receptacle is located above the opening of the bottom wall in response to completion of each indexing step. At such time, a pusher is moved upwardly through the opening of the bottom wall to raise a block into the registering receptacle.

Abstract: A sensor component is provided that includes a coded magnetic transmitter, an associated sensor device, and a shell. The transmitter and the sensor device are movably positioned relative to one another, and the magnetic transmitter is arranged inside the shell. The shell is closed relative to the sensor device and includes austensic steel with more than 0.4 weight percentage nitrogen and a yield strength of at least 900 Mpa.

Abstract: A partially-hollow rivet (1), for joining aluminum sheets (3) and (7) by using the self-piercing technique, is made of light metal such as aluminum or an aluminum alloy, and the front (2) of the rivet base has a surface with a blunt shape.

Abstract: A conveyor belt (1) leading to a sorting device (2) comprises two superimposed functional sections (3, 12), which are connected to each other via deflected intermediate sections. As a result, the structural length of the conveyor belt (1) is reduced.

Abstract: A circuit for operating an electric motor (11) includes a monitoring arrangement (24) for ascertaining an increased load state of the electric motor (11). The monitoring arrangement (24) compares an rpm difference (ND) between a predetermined nominal rpm value (NSOLL) and an actual rpm value signal (NIST) with a predetermined limit value. If the limit value is exceeded, the monitoring arrangement (24) emits an overload signal (25) that reduces the nominal rpm value (NSOLL) or a control variable (SN) supplied to a drive stage (18), or drops it to zero. The circuit is particularly suited for use with a fan, in which instance the ventilator (22) cools the electric motor (11) and/or the drive stage (18).

Abstract: The cardboard blanks for conversion into hinged-lid packets for arrays of cigarettes are dimensioned and configurated in such a way that an elongated reinforcing strip at the inner side of the front panel of the lid is longer than the front panel. Those terminal sections of the reinforcing strip which extend beyond the ends of the front panel in a blank are bent prior to or during the folding of the reinforcing strip against the inner side of the front panel so that they do not adversely affect the configuration of the lateral panels of the lid and the appearance of a finished packet because the lateral panels are not caused to bulge outwardly.

Abstract: The invention concerns an electrical screening housing for accommodating components or assemblies which emit electromagnetic radiation or are sensitive thereto, and for providing electromagnetic screening for the components or assemblies. The housing includes at least two parts with electrically screening walls, a sealing element being provided in an adhesive manner on at least one housing part in the region of a joint with the other housing part. The sealing element and at least one portion of the housing part bearing the latter are made of substantially non-conductive material and, for electromagnetic screening purposes, are covered with a cohesive, electrically conductive layer which extends at least over the entire width of the joint and adheres to the joint element and the housing part.

Abstract: A process for preparing S-(&ohgr;-aminoalkylamino) alkyl aryl sulfide dihydrochlorides includes the steps of (a) reacting aryl mercaptan and (&ohgr;-aminoalkylamino) alkylbromide dihydrobromide to cause condensation thereof in the presence of an organic base in an organic solvent and provide a condensation product; (b) converting the condensation product to a dihydrochloride salt; and (c) precipitating the dihydrochloride salt. Preferably the precipitated dihydrochloride salt is recrystallized. These dihydrochlorides are new and effective antidotes for sulfur mustard toxicity.

Abstract: A drive for rotating an article such as a roller shaft or plate has a gear which is connected to the rotating article in a rotationally fixed manner. The gear has a number of teeth. A means for driving the gear has a movably mounted lever with a tip that meshes with the gear to have driving contact with the gear and impart driving motion to the gear. The tip forms a tooth and the gear teeth and the tooth of the lever tip are shaped to mesh with a rolling contact between them during the driving motion.

Abstract: The invention relates to an optoelectronic device (1) for detecting objects (2) in a monitoring range, one end of which comprises a transmitter (3) that emits transmitting light rays (8) and two receivers (4, 5) that receive light rays (10) and have respectively one first and second linear polarizing element (14, 15) installed in front, for which the polarization directions are such that they are turned relative to each other by an angle &agr; in the range of 45°<&agr;<135°, while the other end has a reflector unit (9), comprising a reflector (17) with a third linear polarizing element (16) installed in front, for which the polarization direction essentially coincides with the polarization direction of the first or second polarizing element (14, 15).

Abstract: An improved twist drill is provided which reduces wear or chippings of the major cutting edges (3) and those of the leading edges (7) of land (9) and which has a long service life and stays sharp. A twist drill has a pair of chip discharge flutes (6), a pair of chisel edges (1), a pair of inner cutting edges (2) and a pair of major cutting edges (3) extending from each outer end of the inner cutting edges (2). Further, the drill has a pair of outer cutting edges (4) each receding from each of the major cutting edges (3) at an angle (&agr;1), and a pair of leading edges (7) of lands (9) each formed by the land (9) and the outer cutting edge (4) and has a linear or curved rake face (8). Wherein, an angle (&agr;4) of the leading edge (7) of land (9) between the leading edge (7) of the land (9) between the leading edge (7) of the land (9) and the linear or curved rake face (8) is an obtuse angle.

Abstract: A direction-finding method for determining an incident angle of a high-frequency electromagnetic signal in a system including at least two receiving antennas spaced apart by a known distance. the antenna output signals of the at least two receiving antennas are converted, together (in accordance with a multiplexing procedure) or individually, into the frequency domain through a Fourier transformation, followed by a conversion into an IF range and an A/D conversion. In this range, the phase difference between the output signals is determined and the signal frequency of the incident wave is determined through a phase-sequence analysis. The incident angle of the incident wave is determined from the phase difference and the signal frequency.

Abstract: A process for the preparation of an immunoadsorbent matrix includes preparing polyvinyl alcohol beads by partially crosslinking polyvinyl alcohol (PVA) with a crosslinking agent to provide polyvinyl alcohol beads which are at least partially crosslinked; coupling phenylalanine onto the polyvinyl alcohol beads to obtain a —COOH functionality for the phenylalanine coupled polyvinyl alcohol beads; and activating the —COOH functionality for immobilizing heparin onto the phenylalanine coupled polyvinyl alcohol beads.

Abstract: Electrostimulator (2), comprising an interface for connecting a working electrode (2), as well as a pulse generator that is connected on the output side to the interface for transmitting electrical pulses to the working electrode (10), with a first measuring instrument (10) that is connected to the interface for measuring the electrical voltage present at the interface and/or the electrical current flowing over the interface, as well as an arithmetic unit, connected on the input side to the first measuring instrument, for computing an output signal reflecting the capacity of the working electrode in dependence on the current and/or voltage at the interface.

Abstract: Groups of coaxial plain cigarettes and filter mouthpieces, particularly cigarettes and mouthpieces having elliptical cross-sectional outlines, carry adhesive-coated uniting bands at the time of entry into a channel between the peripheral rolling surface of a rotary drum and the complementary rolling surface of a stationary rolling member. The uniting bands are convoluted around portions of or the entire mouthpieces and around the neighboring portions of the respective cigarette or cigarettes. The inlet of the channel is defined or preceded by a transversely extending stationary group-contacting device having a raised first portion which cooperates with the drum to set the mouthpieces and the cigarettes of successive oncoming groups into simultaneous rolling motion, and such first portion is followed by a second portion having a concave guide surface which ensures predictable entry of successive groups into the rolling channel downstream of the first portion.

Abstract: A solidification and curing accelerator for hydraulic binders produced by a process including providing a reaction mixture composed of constituents (a) - (e) as follows: (a) at least one of basic aluminum salts which are substantially water insoluble and aluminum hydroxide; (b) at least one of aluminum sulfate which is substantially water soluble and sulfuric acid; (c) at least one of an organic carboxylic acid or mixtures of at least two organic carboxylic acids; (d) aluminum salts of organic carboxylic acids; and (e) at least one organic and inorganic substance selected from the group consisting of sulfates, hydrogen-sulfates, carbonates, hydrogen-carbonates, alkaline earth metal oxides, and alkaline earth metal hydroxides; adding water to the reaction mixture and reacting at a temperature ranging up to 150 ° C. for a time effective to provide a reaction product which is a solution in water.