baber/WOPTO huggingface dataset:
Patent DE-3048682-A1 (DE)
Title: Medical instrument for treating internal tumours - has spheroidal microwave reflector providing focal points for tissue and aerial for radiation and reception
Inventor: NAITO HIROSHI
IPC: A61B5/00
Filed: 1980-12-23
Abstract: The medical instrument for radiating and receiving microwave energy is applicable to biological tissue. In the treatment of internal tumours such as cancer etc. it enables exact positioning and the maintenance of temp. within definite limits at the defined place within the body. The microwave reflector (24) provided forms a spheroid with two focal points (f1,f2). One focal point (f1) can be placed in the tissue to be examined or treated. A microwave aerial (26) is assigned to the other focal point (f2) for the radiation or reception of microwave energy. The aerial is connected to the microwave source. The tissue to be treated is arranged so that the focussed microwave energy impinges on it for appropriate hyperthermal therapy.
Patent DE-3049042-A1 (DE)
Title: Wool finishing esp. dyeing and bleaching - in aq. medium contg. nitrogen-free acyclic acetal partic. glycol acetal of lower aldehyde
Inventor: ROBINSON TIBOR
IPC: D06M13/137
Filed: 1980-12-24
Abstract: Wool- or wool-contg. textile finishing takes place in aq. media in the presence of or with N-free, acyclic acetals, (I), as aldehyde-dissociating, crosslinking cpds. (I) are esp. glycol-acetals of lower aldehydes, partic. HCHO. Pref. (I) are diacetal derivs. of HCHO in which at least one acetal gp. is an opt. etherified ethylene-glycol- or diglycol residue. (I) are used esp. in dyeing and/or bleaching. (I) have a protective activity on wool. The treated textiles have an improved hand. Level dyeings are obtd.
Patent DE-3049264-A1 (DE)
Inventor: ROCKENFELLER GOTTFRIED
IPC: F16B13/12
Filed: 1980-12-27
Abstract: 1. A fastener for structural parts of masonry or the like, consisting of a plastics expanding wall-plug (2) and a drive-screw (3) which can be driven into it and which at the front of the thread has flanks (12) having a shallow slope with respect to the longitudinal axis (11) and at the rear of the thread flanks (13) having a steep slope with respect to the longitudinal axis (11), characterized in that the connection between the flanks (12 and 13) consists of rounded portions (14) which form crests on the thread.
Patent DE-3103871-A1 (DE)
Title: Method of producing an activatable attachment, and attachment produced by this method
Inventor: UEBBER KLAUS
IPC: A61C13/265
Filed: 1981-02-05
Abstract: For the production of an activatable attachment for removable partial dentures and bridges an anchor crown is initially modelled in wax, a shaped part of a meltable material corresponding to the male part of the attachment is applied with wax to the model of the anchor crown, the model is embedded with the shaped part applied with wax, and the anchor crown and the male part are cast in one piece. The removable part of the denture with the inserted friction pin is then modelled in wax around the male part, the male part producing a recess as the female part, the model of the removable part is embedded and cast, and, finally, the friction pin is soldered into the female part recessed in the removable part. Production of the attachment does not require any expensive, prefabricated attachment parts. Simple, accurate adaptation to the anatomy of the teeth and jaw is possible.
Patent DE-3106586-A1 (DE)
Title: Mechanical seal
Inventor: HANAGARTH WOLFGANG
IPC: F04D29/12
Filed: 1981-02-21
Abstract: Mechanical seal, in particular for centrifugal pumps, with a power loss reduction device having one or more freely rotatable sleeves which surround the pump shaft and are supported in a gap of the machine casing or in a gap on the mechanical seal or on bearing bushes. In the latter case, an expanded gap is arranged between the sleeves themselves and/or the outer sleeve and the casing and/or the inner sleeve and the mechanical seal.
Patent DE-3107446-A1 (DE)
Title: Voltage-controlled sine-wave oscillator
Inventor: ROBOK ALFRED
IPC: H03B1/00
Filed: 1981-02-27
Abstract: To generate a harmonic-free sine-wave oscillation whose frequency can be modified continuously within specific limits depending on a control current supplied from an external voltage source, an active low-pass filter is connected downstream of the oscillator which, in the same way as the frequency of the oscillator, is varied in terms of its limit frequency by the control current, and this control current flows through the LEDs contained in optocouplers which in turn illuminate photoresistors whose resistance value which is dependent on the radiation intensity is frequency-defining in the oscillator and limit-frequency-defining in the low-pass filter. If, for example, the frequency of the oscillator increases due to an increasing control current, the same control current will likewise increase the limit frequency in the active low-pass filter to such an extent that the fundamental wave can pass unchanged, whereas all the harmonics are blocked.
Patent DE-3108304-A1 (DE)
Title: Heating boiler intended for solid fuels in heating installations
Inventor: KRAUSE WINFRIED
IPC: F23N3/04
Filed: 1981-03-05
Abstract: In a heating boiler intended for solid fuels in heating installations, having a draught control device, which is used for preventing or reducing chimney-side heat losses and which has a shut-off valve and a thermostatically adjustable servo-motor intended for adjusting the latter shut-off valve, to which heating boiler combustion air is delivered via an electrically driven fan, air is inadvertently drawn in from the outside, even when the fan is at a standstill, through the free intermediate spaces between the blades of the fan, with the result that the fire in the heating boiler does not come to a standstill, as intended. This disadvantage is eliminated by virtue of the fact that a louvre element is arranged securely on the outside of the fan, the slats of this louvre element being forcibly pivoted into the closure position when the fan is shut off.
Patent DE-3118593-A1 (DE)
Inventor: MUELLER-MALL RUDOLF DR DIPL CH
IPC: C08F2/24
Filed: 1981-05-11
Abstract: 1. A process for the preparation of aqueous polyacrylate dispersions having improved rheological properties by polymerisation of acrylic acid esters and/or methacrylic acid esters of alkanols of 1 to 10 carbon atoms with from 0 to 60% by weight of styrene and/or from 0 to 20% by weight of vinyl esters and/or from 0 to 10% by weight of water-soluble mono-olefinically unsaturated comonomers, with emulsion feed of the monomers in aqueous emulsion at from 30 to 95 degrees C in the presence of conventional free-radial polymerization initiators, protective colloids and from 0.5 to 5% by weight of nonionic emulsifiers, and in the presence or absence of regulators, the percentages by weight being based in each case on the total amount of monomers, and the polymerization being started in a vessel which may contain a small proportion of the protective colloids and/or of monoolefinically unsaturated monocarboxylic acid and/or dicarboxylic acid, wherein the protective colloid and/or a monoolefinically unsaturated monocarbocylic acid and/or dicarboxylic acid is fed to the other part of the polymerization mixture in increasing amounts per unit time while the monomer emulsion is being run in uniformly per unit time.
Patent DE-3120756-A1 (DE)
Title: Stove tile for self-construction
Inventor: STORM RICHARD
IPC: F24B1/06
Filed: 1981-05-25
Abstract: The modification of the rear side of a stove tile (see Fig. 2), a circumferential conically tapering-off web which is slotted on each side in the central point (Fig. 2b), makes possible, with the aid of a wedge piece (Fig. 3a) and two small metal plates (Fig. 3b) which are inserted towards one another, by crossing twice on each side (Fig. 3c), a tension effect which guarantees a mortar-free and adhesive-free connection without disturbing the heat exchange of a tiled wall, as is the case in rigid-mortared, adhesively bonded or screwed systems. The simplicity of the system makes possible the use of unskilled labour in the workshop and approaches the currently widespread "Help yourself method". Cost savings up to 50% can be achieved. <IMAGE>
Patent DE-3124205-A1 (DE)
Title: Leak-locating system
Inventor: MENNENGA HERMANN
IPC: G01M3/22
Filed: 1981-06-19
Abstract: In known leak-locating systems for finding leaks on vacuum vessels with the aid of a test gas which penetrates through leak points from the outside, having a turbo vacuum pump (1), the test gas which is to be continuously pumped out of the vessel (9) which is to be tested is, according to the invention, in contrast fed to the output side of an intermediate stage of the turbo vacuum pump. In this way, it is ensured that the partial pressure of the gases which are stored in the oil reservoir of the output-side bearing of the turbo vacuum pump (1) and of the fore pump can be kept substantially lower in the detector (2), which leads to a shortening of the time constant in order to achieve again complete detectability after a peak of the test gas. It is advantageous to construct the mouth as an annular channel (10) in the housing of the turbo vacuum pump, which channel (10) surrounds the respective intermediate stage. <IMAGE>
Patent DE-3126914-A1 (DE)
Title: Wall element in the form of a bar, in particular for planting receptacles
Inventor: BEHRENS WOLFGANG
IPC: A01G9/02
Filed: 1981-07-08
Abstract: For plant receptacles, the wall of which comprises rings, lying one on top of the other, of bars which can be plugged together, the bars are provided at their ends with articulation connections.
Patent DE-3130540-A1 (DE)
Title: Circuit arrangement for electronic temperature measurement
Inventor: HENNEBERGER HEINZ DIPL ING
IPC: G01K17/08
Filed: 1981-08-01
Abstract: Circuit arrangement for electronic temperature measurement by means of temperature-dependent resistors, in particular as a heater temperature sensor for an electronic heating cost allocator, at least two parallel-connected measuring circuits being provided in which temperature-dependent resistors are connected in series in each case to semiconductor components (diodes or transistors) serving as valves. The two measuring circuits, which are connected as two-port networks, are fed at a prescribed frequency with an alternating current supplied from an alternating current source, the electronic valves of the two measuring circuits being switched on by the respective positive or negative half cycle of the alternating current. By subtracting the voltage drops occurring on the two temperature-dependent resistors, which are proportional to the temperatures to be measured, a corresponding temperature difference can be determined, for example the difference between a heater temperature and a room temperature. A third measuring circuit, which is connected in parallel with the first and second measuring circuits, can be used to monitor the measuring lines. It is preferred to use NTC or PTC resistors as the temperature-dependent resistors. <IMAGE>
Patent DE-3131556-A1 (DE)
Title: Door holder for vehicle doors
Inventor: CLAAR KLAUS DIPL ING
IPC: E05C17/28
Filed: 1981-08-08
Abstract: In door holders of vehicle doors, which consists of a C-shaped housing and of a catch strap which is guided so as to be longitudinally movable therein and to which is connected a plastic bush, on the free ends of which are mounted balls cooperating with indented beads in the housing, in the end position of the door the high force then occurring is transmitted solely via the plastic bush, thus leading to phenomena of pronounced premature wear on the latter. This is to be remedied, according to the invention, in that, in order to absorb the forces acting when the door reaches the limit, the catch strap has a cam surface or the like, with which a wall region of the housing cooperates in a supporting manner.
Patent DE-3133538-A1 (DE)
Title: Multilayer analytical element
Inventor: YAZAWA KENICHIRO
IPC: G01N33/52
Filed: 1981-08-25
Abstract: Multilayer analytical element for the analysis of aqueous liquids, in particular for the analysis of body fluids, which has a water-impermeable, transparent carrier, at least one reagent layer above the carrier and a porous layer above the reagent layer, where the porous layer has a restricted area whose area, size and shape is not larger than that of the carrier or of the reagent layer or other layers which form the multilayer analytical element.
Patent DE-3137205-A1 (DE)
Title: Manual gearbox
Inventor: RENK ROLF
IPC: F16H57/00
Filed: 1981-09-18
Abstract: To reduce or avoid gearbox noise during idling, the gearwheels mounted on the main shaft are braked by friction elements subject to the action of centrifugal force, the braking action decreasing with increasing speed of rotation. To avoid a negative effect on synchronisation and to avoid additional friction when the vehicle is allowed to freewheel, the proposal is to make the centrifugal force acting on the friction elements dependent on the speed of rotation of the main shaft.
Patent DE-3148662-A1 (DE)
Title: Tachograph
Inventor: ENDLER MAX
IPC: G01P1/12
Filed: 1981-12-09
Abstract: In a tachograph having a cover which is pivotably mounted on a housing and which can be locked by means of a lock, the lock is to be assigned to the cover in such a way that the lock axis passes through the tachograph, and therefore no extension for mounting the lock has to be formed on the cover and housing. According to the proposed solution, the lock bolt (24) is mounted in a first constructional part (20) of the cover (4), the lock cylinder (17) of the lock (18) is retained in the front frame (16) of the cover (4), and the lock bolt (24) and lock cylinder (17) are connected operatively during the connection of the front frame (16) to the first constructional part (20) of the cover (4) via coupling means, for example a pin-and-slot connection (30, 37). <IMAGE>
Patent DE-3202510-A1 (DE)
Title: Viewing frame for a film section
Inventor: BESTENREINER FRIEDRICH DIPL PH
IPC: G03B27/62
Filed: 1982-01-27
Abstract: A viewing frame for a film section containing at least one picture, the film section having, outside the picture area, at least one magnetic track which is parallel to one picture side and which, in the event of the presence of a number of pictures on the film section, extends along picture sides of the pictures, which are flush with one another, is designed in such a manner that the viewing frame (3) is formed by a plate which has picture window cutouts (3a) corresponding to the picture areas of the pictures (1a) and, on the side (3b) facing the film section (1), a recess (3c) for insertion flush with this side of the film section (1), and that, in the extension of the magnetic track or magnetic tracks (2) of the film section (1), which is inserted into the recess (3c), there is likewise provided on the side (3b) having the recess (3c), in the frame edge region projecting over the film section (1), a number of magnetic tracks (4) corresponding to the number of and flush with the magnetic tracks (2) on the film section (1). <IMAGE>
Patent DE-3205123-A1 (DE)
Title: Method and device for automatic cooking of foods in a microwave appliance
Inventor: SCHMIDT ROBERT
IPC: H05B6/68
Filed: 1982-02-12
Abstract: Device for cooking foods in the heating space (1) of a microwave appliance, with a sensor (8) which is arranged in the flow path (6) of the air flowing out of the heating space. In order to make possible completely automatic cooking or heating of foods in the heating space (1) of the microwave appliance, a further sensor (9) is arranged in the incoming-air path (7) to the heating space (1) and, to detect the core temperature of the food, a measuring probe device (5) is provided and, for automatic control of the cooking process or cooking sequence, a programmable microcomputer (11) is used, to which the data detected by the sensors (8, 9) and the measuring probe device (7) are supplied and which has a number of basic programs for controlling cooking processes for different groups of foods. <IMAGE>
Patent DE-3206141-A1 (DE)
Title: Control valve for a dosing device for dosing liquid media, in particular foods
Inventor: AMMANN SIEGFRIED ING GRAD
IPC: G01F11/02
Filed: 1982-02-20
Abstract: A control valve (1) for a dosing device for dosing in particular foods such as milk or yogurt with food pieces has, displaceable in a valve housing (6), a valve plunger (7) with, arranged along the same at a distance from one another on control pistons (17, 18), two valve surfaces (8, 9) which interact alternately in each case with an upper and lower valve seat (11, 12) delimiting a control space (10) provided in the valve housing (6). The upper valve pairing consisting of valve surface (8) and valve seat (11) controls the supply of filling material to the control space (10) and the lower valve pairing (9, 12) the discharge of filling material from the same into a cup or the like. The control space (10) is connected to the dosing device. When the upper valve pairing is closed and the lower valve pairing is opened for the purpose of discharge of filling material, the lower control piston (18) emerges downwards from the valve housing (6). At least two radially extending stream cutters (19, 20) are provided, which are distributed uniformly around the valve plunger (7) and which extend axially upwards from the valve surface (9). Both the valve plunger (7) and the stream cutters (19, 20) are, in their mutually adjacent regions, at least partially reduced in their supporting cross-sections in order to favour the passage of solid or semi-solid ingredients, in particular food pieces. <IMAGE>
Patent DE-3215897-A1 (DE)
Title: Method for measuring and detecting objects at a long distance and device for carrying out the method
Inventor: DIETRICH KLAUS DIPL PHYS DR
IPC: G01S17/89
Filed: 1982-04-29
Abstract: A method for measuring and detecting objects at a long distance, such as, for example, space vehicles or those objects whose image size is smaller than the smallest displayable pixel is presented. In a case where the image of the object to be detected is smaller than one pixel, detection of an object has been impossible with the previous method. In the method, the object (10) to be detected is irradiated by an electromagnetic pulse, preferably a light pulse, and the reflected pulse is received and analysed by a radiation detector and evaluated. The fact is utilised that the reflecting part-areas of the object (10) are hit at different times by the light pulse depending on their position and correspondingly reflect this light pulse. As a result, transit time differences arise between the pulses reflected from the various part-surfaces of the object (10) in dependence of the geometry of the object (10). The total reflected light pulse is produced by superimposition of the individual pulses displaced with respect to one another in time, which results in a transit-time spectrum. This transit-time spectrum, or also transit-time signature, is only dependent on the geometry, the angle of observation and the degree of reflection of the object (10). <IMAGE>
Patent DE-3219075-A1 (DE)
Title: 2-Polyfluoroalkylmalonic acids and their derivatives and their preparation and use
Inventor: IWATSUKI SHOJI
IPC: D06M15/21
Filed: 1982-05-21
Abstract: 2-Polyfluoroalkylmalonic acids and their derivatives of the formula   <IMAGE> in which R1 stands for a C3- to C21-perfluoroalkyl and M<1> and M<2> in each case stand for hydrogen, an alkali metal, ammonium or a C1- to C10-alkyl, are made available, furthermore acrylic compounds of the formula <IMAGE> in which R1 has the abovementioned meaning and Y stands for a carboxyl group or a functional group derived from this, and also polymers which contain the monomeric units of the formula <IMAGE> in which R1 and Y have the abovementioned meanings, and optionally structural units originating from at least one ethylenically unsaturated compound. These are useful as water- and oil-repellent agents and also as intermediates for the preparation of other substances which have practical utility per se.
Patent DE-3219731-A1 (DE)
Title: Electronic clock striking mechanism circuit
Inventor: HENTZSCHEL HANSPETER DR
IPC: G10H1/00
Filed: 1982-05-26
Abstract: In an electronic clock striking mechanism circuit having a time-controlled signal control circuit (1) for stored-program sound generation by means of a periodically read out amplitude memory (4), improvements are sought with regard to realisability within the scope of a single digital integrated circuit which is to have only a few external circuit components and to be operated with a low feed voltage, in conjunction with an improved approximation of the resulting electroacoustic sound impression in the sound response of conventional mechanical clock striking mechanisms. For this purpose, a plurality of amplitude memories (4...) are read out in parallel and their instantaneous amplitude values are digitally added from fundamentals and harmonics, with conversion of the sum signal into a pulse-length-modulated binary signal for driving an audio circuit (2). The amplitude memories (4.1, 4.2 and 4.4) for emitting melodies are assigned a current sound, a previous sound and a sound that is slightly frequency-shifted relative to the current sound. A further amplitude memory (4.3) contains the resulting amplitude variation of the fundamentals and harmonics of the compound sound for generating striking of the hour. <IMAGE>
Patent DE-3228907-A1 (DE)
Title: Collapsible delivery trolley
Inventor: KARSCHULIN OTHMAR
IPC: B62B3/02
Filed: 1982-08-03
Abstract: A trolley of this kind has a frame (1) which is supported at the rear via downwardly inclined supports (23) on rear wheels (20) and at the front via a downwardly inclined rocker (13) on front wheels, it being possible to move said trolley into a collapsed position by swivelling the rear wheels on the support in relation to the frame, by swivelling the frame and front wheels in relation to one another and by swivelling the fixable handle in relation to the frame. At the same time, it is desirable if the trolley is cheap to manufacture by having few joints and being composed of a small number of different kinds of components. This is achieved in that the two supports are an inherently rigid structure (23) to which the bearings (24) of the rear wheels (28) are rigidly connected, the support structure is attached to the frame (1) so as to be rotatable about a vertical axis with respect to the latter and to be fixable (7, 8) and the frame is attached to the rocker (13) and the support structure (23) so as to be rotatable with respect to the latter about a horizontal axis and to be fixable (7, 8). In order to collapse the delivery trolley according to the invention, disregarding the joint of the handle, only the vertical joint of the support structure and the horizontal joint of the frame are necessary. <IMAGE>
Patent DE-3229518-A1 (DE)
Title: Heat pump (vaporiser air) which has a special air intake channel with preheating
Inventor: SCHREUR JOSEF
IPC: F25B30/00
Filed: 1982-08-07
Abstract: The invention for which a patent is applied for is concerned with a heat pump which has a special air intake channel. A graphical representation was omitted since details are unimportant and the essentials are to be gathered from the specification. It should, however, be briefly explained that a heat pump is concerned which has a specially constructed air intake channel. This consists of two zones. In the first zone, which is the air inlet, a preheating or heating device is installed, using either a direct or an indirect method (in the form of pipes or plates). The evaporator is situated in the second zone. The heat required for heating the air is chiefly recovered by utilising the condensation heat of the refrigerant. Additional heat is bled from the heating circuit, or an additional heat source, e.g. a gas heater, is installed. The additional heating device, however, only needs to be minimally rated, since it does not function as the main heat source.