Abstract: A mobile telephony system includes an internal part-system, which is installed in a building and an external part-system. The internal part-system has internal base stations which are connected to a mobile switching center, to which external base stations are also connected. The mobile telephony system is assigned a frequency band which comprises a plurality of channels. The external part-system is divided into cells and has fixed channel assignment with a few channels to each external base stations. The internal part-system is adaptive and the internal base stations have access to all channels of the system. In order to determine whether a mobile station belongs to the internal or to the external part-system, an internal identification word is transmitted from the internal base stations and an external identification word is transmitted from the external base stations.

Abstract: Precipitated silica gels having high surface areas and low oil absorption values are produced by a low temperature synthesis precipitation process. The precipitated silicas have unique flatting characteristics and are additionally useful as conditioning agents for food and salt and in dentifrice formulations.

Abstract: A feeding mechanism for a round hay baler is capable of feeding plastic sheet, netting, or alternatively twine by means of a single set of parallel feed rolls. The device includes a control mechanism which, upon sensing of a full bale having been formed within the baler, initiates a programmed control sequence beginning with driving of one roll for an incremental period of time. The driven roll engage netting, sheet or twine against the second idler roll and feeds the netting, sheet or twine into the bale forming mechanism for wrapping about the bale. Upon completion of the wrapping sequence, a special knife descends and cuts the twine or sheet of netting or plastic. The controller then resets the mechanism.

Abstract: A plastic ball valve having improved valve stem sealing means.

Abstract: Provided is a track of elongated sections which interlock together to form various desired shaped. Each section has a safety securement device consisting of a "T"-bar slot (12) in its center. A rigid "T"-bar (16) is connected with a hook-end-loop strip (17) to the rear of a child's ride-on, toy vehicle. The "T"-bar (16) cooperates with the "T"-bar slot (12) to allow controlled movement of the toy vehicle along the track. The track may also be provided with raised, bumper guards along its edges to aid in keeping the child's vehicle within the confines of the track.

Abstract: An apparatus and method for mixing concurrently downwardly flowing fluids is disclosed. The apparatus comprises a tray extending horizontally across a cross-section of a mixing chamber and having an aperture in the middle. A cap having a pair of opposing openings covers the aperture. Fluids pass through the openings into a pan adjacent a downstream portion of the mixing chamber and spaced below the tray. A tube encircling the aperture is disposed between the cap and the pan. The tube has notches cut into the lower wall to allow the fluids to enter the pan. Radially spaced risers extending from the bottom of the pan provide fluid communication to a downstream portion of the mixing chamber. The risers have upper ends which are above the notches and spaced below the tray. The mixing apparatus can be used between two catalyst beds in a vertical, fixed-bed reactor, wherein a hot, mixed-phase effluent stream is quenched with a hydrogen-rich gas in hydrodesulfurization, hydrocracking, and like processes.

Abstract: A cell separator plate for separating fuel cell units in fuel cell stacks, the separator plate having a peripheral seal structure extending from each face completely around its periphery and a electrolyte seal structure extending from each face and having a generally flat face spaced inwardly from the separator plate peripheral seal structure and extending completely around the separator plate forming a separator plate/electrolyte seal with an adjacent electrolyte under cell operating conditions, and a peripheral compartment between the separator plate/electrolyte seal and separator plate peripheral seal between adjacent separator plates. The peripheral compartment may contain active electrolyte which may be wicked into the electrolyte matrix through edges of the matrix directly exposed to the peripheral compartment. The peripheral compartment may contain an inert gas to ensure active electrolyte containment within the electrolyte matrix.

Abstract: A method for joining non-woven fabrics having the following steps; opposing the same sides of a first and a second non-woven fabrics and, whereby superimposing end portions thereof, joining with heat bonding the end portions superimposed, opening the first and second non-woven fabrics at both sides of a fabric to the first and second non-woven fabrics in the opening state, while extending over them along the joining portion, and joining with heat bonding the third non-woven fabric to the first and second non-woven fabrics including the joining portion.

Abstract: A method of quantizing the line spectral frequencies (LSF) when calculating the parameters of an analysis filter is included in a linear predictive coding (LPC) speech coder. The line spectral frequencies form an alternative to the filter parameters with unambiguous correspondence. Sum polynomials (P) and difference polynomials (Q) are constructed from the direct form coefficients of filters. Thereafter, the roots of the polynomials which correspond to the line spectral frequencies are determined, without calculation, by examining the polynomials in light of pre-selected test frequencies (f.sub.tp1, f.sub.tqf1, f.sub.tp2, f.sub.tq2, . . . ) that are speech typical. The polarity of the two polynomials (P, Q) is investigated for each of these test frequencies. When a polarity change occurs between two test frequencies, one of these frequencies, such as the higher frequency, is chosen.

Abstract: Improved multi-wall containers and pipes for transporting fluids which have to be protected against leakage and mechanical forces, have an inner and outer wall separated by a continuous foam layer integrated into the containers. Improved strength and resistance to axial inertial pressure is provided by the method of manufacture using chopped glass fibers, continuous windings of glass fibers and suitable polyester resins and circumferential ribs spaced at stress points and integrally incorporated into the containment walls. Vessels produced according to the methods of the invention have a moment of inertia strength of about 4.67 in.sup.4 substantially eliminating torquing, buckling and rupture.

Abstract: A web guiding structure in a drying section downstream from a coating device, and having suspension and infrared dryers and with a directly preceding coating device for paper or board. A rigid beam-like chest-like web bend device with blowing elements is adapted to produce a pressurized gas cushion for the web for contact-free bending of the web in its direction through an angle between 50.degree. and 120.degree., so that with an increase in its distance from the bending device, the web also moves away from the coating device. Following the bend device a heating device or a suspension device having beam-like, chest-like blowing air guide devices in each case produces a course of the web undulating in the direction of movement of the web (web valleys and crests extending in the transverse direction) on the upper and lower sides of the web.

Abstract: A disposable hand held laminated pad suitable for the application or removal of liquids and other materials while shielding the hand of the user from the materials includes a base pad having a lower wiping surface and an upper attachment surface, a thin impervious shield portion coextensive with and attached to the upper attachment surface, and a thin handle secured at a lower edge to the impervious shield and extending upwardly therefrom for grasping between fingers of a hand for enabling use thereof without contacting the fingers with the material being applied or wiped. The impervious shield helps prevent contact between a user of the pad and a person on which the pad is being used.

Abstract: Peanuts with a moisture content of from 6% to 15% are subjected to vacuum drying and/or roasting in a chamber using microwave energy to ensure penetration of the kernel. Aflatoxin compounds are destroyed and/or driven off with the vapors exiting the vacuum chamber.

Abstract: In a single wire dryer group, a paper web travels on one side of a support belt over a first dryer cylinder, then over a guide roll, then over a second dryer cylinder moving through the dryer group. A pocket is defined between the two adjacent dryer cylinders and the guide roll between them. To develop a vacuum within the pocket in the vicinity of the outer surface of the first dryer cylinder, there is a sealing ledge at the support belt at the first dryer cylinder. The sealing ledge is fastened to a sealing ledge support. An air guide surface on the side of the sealing ledge support away from the pocket is curved first in a direction toward the bottom of the pocket and then away from the pocket around axes above the air guide surface. Toward the second cylinder, the sealing ledge support defines an air ejector nozzle. A first air flow induced on the first dryer cylinder is deflected upward around and past the ejector nozzle by the curvature of the air guide surface.

Abstract: A unit for viewing and supplying light or radiant energy to the interior of a vessel that has a front fused glass window. The light and camera-viewing means see the interior of a vessel through this fused glass window which provides a substantially corrosion-proof seal across the entire distal portion of the unit. The light and camera-viewing means are pointed into the interior of the vessel in substantially the same direction.