Abstract: A charging method for accumulators in two phases, the first phase being a constant current charging up to a given value of the battery voltage and, in the second phase, the battery voltage being limited as a function of the charging current.

Abstract: A sensor for selective determination of gases includes an electric capacitor having a gas permeable zeolite layer between 2 and 500 micrometer thick and being composed of a dielectric crystalline structure with a crystal size from 0.1 micrometer to 80 micrometer and having primary pores resulting in an internal surface from 100 to 1500 m.sup.2 /g, the diameter of the pores being between 0.1 and 1.5 nm which corresponds at least in order to magnitude to the kinetic diameter of the molecules of the gas to be detected, so that these molecules penetrate deep into the layer and its pores thereby changing the dielectric constant of the layer.

Abstract: A force sensor in the integral/monolithic comprises a monolithic block of elastic material which includes a first, second and third plate; a first pair of leaf spring integrally interconnecting the first and second plate, so that the first and second plates can parallely vibrate relative to each other in a first direction; a second pair of leaf springs integrally interconnecting the first and the third plates so that the first and the third plates can parallely vibrate relative to each other in a second direction being at right angles to the first direction; a shaft clearing traverses a bore in the first plate and is affixed to the second plate; the third plate is provided for connection for force receiving; and strain gauges are placed on all the leaf springs to sense separately forces acting in the first and second directions.

Abstract: A sensing circuit is assumed to produce in phase and quadrature Doppler signals. The relative phase of these signals is used to determine the passage of object such that correctly related zero passages in the two signals are counted, and the count state within certain periods of time yields information to check the significance of signals as genuine Doppler signals.

Abstract: Apparatus and method for handling liquid under conditions of weightlessness or near weightlessness includes a small tube being open at one end and closed at the other end except for a passage; normally the open end sits on an elastic nonwetting seal; the tube is moved towards and away from that seal; a plunger on a rod is movably disposed within the tube, and a liquid is kept in the space between the plunger and the open end; the rod is provided with two adjustable, spaced apart stops; and a stationary abutment limits plunger movement to range given by spacing between the stops, so that following evaporation of liquid of a drop that has formed on lift off of the tube, only the residual drop is sucked back into the tube without formation of bubbles.

Abstract: Optical waveguide ends are mechanically fixedly positioned so that an end portion projects from the clamp; electrode structure is disposed in relation to that projecting end for deflecting it in one or two directions basically perpendicular to the axis of the waveguide; and a high frequency oscillation is provided to the electrodes at an amplitude such that the inhomogenic field in the vicinity of the electrode structure moves that end portion, preferably at resonance frequency, to pass through maximum optical coupling with stationary optical input or output.

Abstract: Device for feeding ammunition to an aircraft firing gun, without using belts includes an ammunition container having a plurality of partitions to establish a plurality of different levels; a pair of endless chains being interconnected and run over at least one drive wheel and a plurality of deflection and buffer wheels for running the endless chains of the pair in two loops through all of the said levels of the plurality of levels; the deflection wheels being secured to each other for common movement such that as one loop increase the other one decreases; a normally biased spring releases on firing and acts on one of the loops to obtain full feeder movement during start-up of a booster motor, thereby forcing one loop to increase the other one to decrease.

Abstract: A laying vehicle for a bridge composed of connectable bridge elements includes a laying beam and a carriage that can be moved on the laying beam and having a swivelling elevating platform on which the bridge elements are disposed. A holding device for the locking of the connected bridge elements is provided on the laying beam. The carriage lifts the whole bridge off the laying beam and moves it, therefore, the bridge does not require rollers or rails for its displacement.

Abstract: The invention relates to the careful manipulation of liquids in outer space for purposes of growing crystals, particularly protein crystals. The invention is realized in the hanging drop method; the interface diffusion method and the dialysis method.

Abstract: A device for producing a seersucker fabric on a loom lengthens the effect or pile warp threads compared to the base warp threads at the binding point of the woven fabric. The device is arranged on the outlet side of the loom. Simultaneously, the effect or pile warp thread gang is relieved of tensile loads on the inlet side of the loom in such a manner that it will retreat or creep back to the pile warp beam as little as possible. A lengthening of 41% and more is achieved, compared to length additions in the prior art in the range of 30 to 32%. Additionally a very uniform seersucker fabric free of faults is produced.

Abstract: A gripper loom is equipped along its reed or slay beam with a plurality of compartments formed by separation walls extending in parallel to each other and in parallel to the lower shed forming warp threads which pass through these compartments. The upper edges of the separation walls are aligned with each other and with a guide surface of the gripper rods so that the upper edges form extension guide surfaces for the gripper rods. Thus, the lower shed forming warp threads do not interfere with the proper motion of the gripper rods.

Abstract: A method for navigation and updating of navigation for aircraft uses range image processing and a reference store, segmentizing the range image data are segmentized in order to obtain a particular pattern of type features for purposes of classifying particular types of objects across which the craft flies; extracting particular signature features including localized elevational jumps and determining the position of the craft by correlating a plurality of features and their spatial orientation to each other as extracted with corresponding stored reference information in order to provide a maximum fit that is indicative of deviation of the flight from a flight path as identified by the reference information.

Abstract: A tentering chain has a continuously adjustable chain pitch for the simultaneous biaxial treatment of film webs. Tenter bodies conventionally equipped with clamps or hooks for gripping an edge of the film web are carried by the tentering chain. Guide rails operate the tenter clamps. Neighboring tenter bodies are interconnected by chain links. Each chain link is connected by a hinging connection at each end to the respective tenter body. At least one of the two hinging connections of a chain link is adjustable by a hinging bolt having an eccentric section or sections and a circular section or sections. The adjustable eccentric hinging bolts are mounted for rotation in the tenter bodies and the eccentric section engages the respective end of the chain link. For this purpose the chain link has a bore in which the eccentric section is received.

Abstract: A method of shaping planar parts which have an elastic and plastic range for making components which are curved two dimensionally around two axes under utilization of a high pressure peening shot beam comprises the steps of tension positioning the part to obtain through elastic deformation to obtain the desired contour; peening the surface of the part to be deformed by running a beam of shot along track lines which are essentially lines of equal strain in the parts to be made; controlling the peening shot beam energy such that more central parts receive shot at a higher energy than more peripheral parts of said part; repeating the aforementioned steps on the other side of the part; and separately peening shot treating at least some of thicker edge parts, so as to obtain plastic deformation.

Abstract: Optical radar includes a linear transmitter diode array with each diode in the array being individually controllable for transmitting a light pulse on being triggered; and a receiver diode array is positioned in relation to the transmitter array in conjunction with optical imaging means such that a diode of the transmitter array is imaged on the ground on the same area which is seen by a particular diode of the receiver array so that a 1:1 relation is established between a diode providing a particular transmitted light pulse and a diode that can receive said pulse.

Abstract: A collapsible bridge for military purposes is assembled from a plurality of similarly constructed and interconnected bridge elements, each including two track plates, two girders and several length adjusted diagonal struts and tie rods, interconnected and configured so that the angular orientation of the girders is adjustable in relation to the track places, these adjustments being different for different bridge elements such that either the interconnected track plates or the interconnected girders or both approximate arches.

Abstract: A reflector surface furnace includes an open ended ellipsoidal or near ellipsoidal reflector segment having two focal areas, there being a source of radiation in the one focal area, the material to be processed being placed into the other focal area, the furnace is completed as inventive improvement by two end segments of parabolic or near parabolic configurations each having an axis of symmetry that coincides with an axis of symmetry of the central ellipsoid and interfaces with the ellipsoid in these focal areas, the two parabolical end segments have focal points which namely coincide with the focal points of the ellipsoidal segment, but for control purposes there may be separation.

Abstract: An apparatus for determining the position of an object comprises a light source positioned in relation to the object so that at least one collimated beam is issued from a particular positon on the object and bearing a fixed and definite geometric relationship to the sought position; a fluorescent foil or plate is positioned in relation to such object such that a particular spot is stimulated by that collimated beam which then provides the fluorescence; a plurality of fiber optics are arranged such that one end of each fiber optics is placed on a particular geometric pattern to receive radiation from the stimulated spot while the respective other end of each fiber optics is arranged in a similar but smaller scale geometric pattern as the first ends are and in relation to a detector that provides an electrical signal representing the position of the object.

Abstract: The fiber composite for bearing structures for absorption of electromagnetic waves consists in its structure of at least three layers (2, 3, 4, 5, 6, 7, 8, 9) to be different in their electromagnetic material constants, whereby one or more fiber layers (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24) are used for the layers (2 to 9). The fiber layers demonstrate alternately by layers a high or low electrical conductivity such that the electromagnetic material constants of the layers (2 to 9) composed of the fiber layers (13 to 21 and 23, 24) and binder and the layer thicknesses are matched to one another such that the reflection attenuation is integrally maximized in a given frequency range.

Abstract: A device for bending or levelling workpieces by means of shot peening is improved by controlled impacting and indenting using a support element having a rear wall and side walls; a plurality of force spaced apart distributing elements are arranged in the support element and in the least one layer so that at least some of them abut the rear wall of the support element; a plurality of indenting, shot peening elements in engagement with at least some of the force distributing elements in that any of the shot peening elements engage at least two of the force distributing elements; there are elements of one of the plurality which abut the side walls of the support element.