Abstract: A method of simulating a room impression and/or sound impression occurring at a representative listening location in a room with monophonic, stereophonic or multichannel reproduction includes selecting a room whose sound is to be simulated. A location of a representative listening location is then determined. Subsequently, the corresponding room impulse response at least for one channel is determined at the representative listening location. A threshold value which exceeds over at least a portion of the duration of the determined room impulse response is determined for the determined room impulse response. By comparing the determined room impulse response with the threshold value, a reduced room impulse response is produced which within the portion of the duration of the determined room impulse response only includes those contents of the determined room impulse response in which a momentary amplitude is above the threshold value.

Abstract: A multi-sided collapsible container is provided in combination with a pallet. The container preferably has an octagonal shape. The upright portion of the container is formed from a plurality of side panels, end panels, and corner panels. A bottom to the container is formed from a combination of bottom flaps and floor panels. Floor panels are affixed to the pallet for securing the container thereto. A plurality of transverse fold lines in combination with a plurality of lateral fold lines enable the container to move between an open upright use position and a plurality of collapsed storage positions contained within the confines of the pallet.

Abstract: A turbojet engine has an outlet duct to which an annular array of actuating cylinders for nozzle flaps are hinged. The housings for the cylinders are connected together by transverse members to form a rigid structure coaxial with the outlet duct. The arrangement includes convergent flaps and slaving devices for divergent flaps, all hinged to the rigid structure and particularly to the housings.

Abstract: The method pertains to wireless transmission in the common-wave operation. For the operation of common-wave networks, it is required that the modulation contents of the transmission frequencies (1 . . . m) transmitted by the individual transmitting stations are identical. However, in order to enable a station or regional identification, one or more regionally differing additional carrier frequencies (n-3 . . . n) are transmitted, whose reception permits the selection of specific regionally related news or messages in the receiver. The demand of additional carrier frequencies may be reduced to four individual frequencies or frequency groups, if these additional carriers are modulated.

Abstract: A cooking appliance includes a drum for receiving the food articles to be cooked and formed with a plurality of openings smaller than the size of the food articles. The drum is rotatably mounted about a horizontal axis in the cooking compartment of the appliance such that only the lower part of the drum is immersed in the hot liquid therein, e.g., a frying oil. Also described is a method of frying food articles which includes immersing the bottom of a drum, having the food articles therein, in a quantity of hot cooking oil, and rotating the drum such that the food articles tumble into and out of the cooking oil to cause the food articles to become fried to a crisp without absorbing significant quantities of the cooking oil.

Abstract: A method for the hydrogenolytic reduction of peroxidic ozonolysis products to the corresponding carbonyl compounds in the presence of an inert organic diluting agent and in the presence of a monolith catalyst at hydrogen pressures of 0.01 to 2.0 MPa and at temperatures of -10.degree. to 150.degree. C., and a device for the catalytic hydrogenolysis of chemical compounds which yield uniform, new products by means of hydrogenolysis with hydrogen.

Abstract: A method and apparatus for temporarily separating a web from one of the two wire belts in a twin wire zone in a paper making machine. In the twin wire zone, the negative pressure from a suction box is applied to the first wire belt for temporarily deflecting and separating the first wire belt and the web from the second wire belt and the wire belts then returning to contact the web following the suction box. The wire belts are then successively separated from the web by an appropriate guide and take up device. The take up device may comprise a press which includes a press nip defined by one of a suction roll over which the second wire in the web is passing or another type of roll or a flexible support device like a rotating press jacket. A smooth surface, such as that of a roll, forms a press nip with the support device for the second wire belt and after that press nip, the web adheres to the smooth surface to be transported further through the machine.

Abstract: A hydrotherapy bed includes a substantially water-tight enclosure having an open top. The top of the enclosure is covered by an upper and lower layer of thin rubber having an intermediate layer of thixotropic gel approximately one half inch thick. The rubber layers are mounted in a peripheral groove using a strip of T-shaped molding and a supporting net is mounted beneath the lower rubber layer in another peripheral groove by attaching edge loops of the net to a plastic coated half hinge which is inserted into the peripheral groove. A pair of parallel tracks is mounted inside the enclosure and an array of upwardly directed water jets is carried on a cross member which is movable along the tracks. The cross member is coupled to an endless cable wound around pulleys mounted at ends of the tracks. One of the pulleys is coupled to a motor which drives the cross member along the tracks. The cable is kept from crossing over itself on the drive pulley by threading it through a TEFLON.RTM.

Abstract: The invention relates to a process for the separation, in particular filtration of liquids and solids from solid-liquid mixtures, such as from a mineral, ore, coal or sludge suspensions of contaminated earth. The processing space of the filtration apparatus is submitted to overpressure and includes a collector container for solid-liquid mixture, a pressure filter, a discharge system and container for condensate and solid matter. The separation or filtration takes place at an overpressure and at an elevated temperature, preferably 40.degree. C. to 300.degree. C., conveniently 60.degree. C. to 200.degree. C., preferably about 150.degree. C. The pressure filter device communicates with a source for a heated medium.

Abstract: Method for the stabilisation of endogenous physiologically active peptides in human whole blood, serum and plasma samples before and/or during the determination of the-concentration of these peptides by immunodiagnostic or physical assay methods, in which a stabiliser combination which consists of the protease inhibitors amastatin and leupeptin and ethylenediaminetetraacetic acid (EDTA) or contains the stated compounds is added to the samples.

Abstract: A damper seal (10) and method of sealing and damping a rotating shaft (12) is provided with a stator housing (14) and at least two sealing blades, an upstream sealing blade (16) and a downstream sealing blade (18). There are at least two partitioning walls (20) disposed between the sealing blades (16,18) and attached to the stator housing (14). The clearance between the downstream sealing blade (18) and the shaft (12) is greater than the clearance between the upstream sealing blade (16) and the shaft (12). The damper seal (10) restricts the flow of fluid from regions along the shaft that are at different pressures and damps vibratory or whirl motion of the shaft.

Abstract: The invention is directed to a sickleless internal gear pump with an internal ring gear and a pinion meshing with the ring gear. The ring gear has radial apertures for the medium being pumped, and sealing elements radially movably disposed in an appropriate profile groove, and inserted in respective tooth heads of the ring gear, or in the tooth heads of the pinion. The sealing elements are able to slide on the opposite tooth heads of the pinion, or of the ring gear. The head shape of the sealing element and the shape of the tooth space bottom of the ring gear, or of the pinion, are configured such that the sealing element establishes a seal between the pressure space and the suction space in the area of dead center.

Abstract: A printed circuit board having foamed substrates of low dielectric constant and low dissipation factor and techniques for making printed circuit boards and printed circuits using such substrates. The substrate has a dielectric constant less than 1.5 and a dissipation factor less than 10.sup.-2, most preferably, polymethylacrylimide. A conductive layer is placed on the substrate surface using chemical deposition or by use of appropriate adhesives. The printed circuit may be imprinted by conventional techniques such as etching with appropriate etching materials.

Abstract: The invention relates to a magazine arrangement for enabling one or more printed circuit boards to be held in the magazine but readily removable therefrom, wherein the circuit boards are disposed side-by-side and can be inserted into and withdrawn from the magazine by virtue of each board having upper and lower edge-parts which coact with upper and lower grooves in the magazine. Each board carries on its edge that faces inwardly of the magazine one part of a connecting element which is intended to be brought into and out of coaction with a second part of the connecting element, this latter part being located on the backplane of the magazine. The two parts of the connecting element are each provided with a corresponding connecting device, wherein devices are provided for damping transient voltages that occur within board-mounted and/or board-connected electrical and/or electronic components, among other things, when a normalized voltage is applied to said components.

Abstract: New compositions of matter comprise a metal from the group consisting of platinum, rhodium and palladium, a metal from the first row of Group VIII of the Periodic Table and a nonacidic L-zeolite. A preferred composition is Pt--Ni/KL-zeolite. Such catalysts are prepared by coimpregnation of the zeolite with the metals. Methods of using the catalysts in reforming, aromatization or dehydrogenation are provided.

Abstract: Coin-controlled apparatus for locking shopping carts together in nested series at a cart parking station having coin-controlled mechanism mounted on a cart, e.g. on the handle of the cart, which is adapted for receiving and releasably locking therein a latch bar on a tether which is attached to the next cart in the nested series. Deposit of a coin is required to release the latch bar to free the cart for being wheeled away by the user. The coin is held until the user brings the cart back to a cart parking station, nests it in the end cart at the parking station, and inserts the latch bar which is tethered to the end cart in the mechanism to lock the returned cart to the series and to provide for return of the user's coin. The apparatus has a detent arrangement permitting reduction in its size.

Abstract: An apparatus for securing a front panel of a drawer to a drawer frame includes a holding part to be secured to the front panel and a support part to be secured to a drawer frame, one such assembly being provided for each side of the drawer. The holding part can be coupled to the support part, and a spring, preferably a helical spring, acts in the longitudinal direction of the drawer frame between the support part and the holding part. When the front panel is mounted, a limited relative movement of the holding part with respect to the support part in opposition to the spring action is possible.

Abstract: Bending assembly of a bending machine (13), which can be employed to make upstream or downstream, clockwise or anticlockwise, bends of up to 180.degree. and more, on a bundle of bars (14) stacked on each other and lying on a plane substantially perpendicular to a working surface (15), the bending assembly (10) comprising an abutment plate (16) with two opposed abutment pins (17) and a rotary bending plate (11) coaxial with, and external to, the abutment plate (16) and including a bending pin (12), the abutment pins (17) and bending pin (12) having their axes substantially at a right angle to the working surface (15), the abutment plate (16) being able to rotate on its own perpendicular axis and including the two diametrically opposed abutment pins (17) with a space between those two abutment pins (17) at least equal to the diameter of the bars forming the bundle (14) of bars.