baber/WOPTO huggingface dataset:
Patent DE-3018659-A1 (DE)
Title: Loudspeaker diaphragm composed of shells - has first shell connected to other shell without full surface contact
Inventor: BRACHT FRIEDRICH-WILHELM DR
IPC: H04R7/12
Filed: 1980-05-16
Abstract: The connection between the shells of the loudspeaker diaphragm is such that one or more cavities (14) are left between the shells (10,12). The diaphragm shells ensure that the diaphragm cone is reinforced by attaching other cones so that only edges of the cones touch one another, thus providing the cavities in the form of air chambers. It is possible to fasten, between the touching edges of the cones, cones, an encircling bead made of different material, e.g. rubber, form material, coated textiles, leather, PVC, etc. According to the invention, one shell can be designed mainly for sound radiation and the other for stability.
Patent DE-3022871-A1 (DE)
Title: Four-stroke rotary IC engine - has two sets of interlocking vanes oscillating relative to each other, while rotating inside casing
Inventor: HAHN HANS PETER
IPC: F02B53/00
Filed: 1980-06-19
Abstract: The engine has a cylindrical casing with inlet and exhaust ports (E,A) in a stationary wall part and a spark plug (Z) arranged along its circumference. A shaft through the centre of the casing is surrounded by a hollow, concentric shaft. Discs on the ends of the shafts carry vanes which project radially and overlap each other axially. They extend radially across the annular space within the casing round the shafts. The shafts are connected to the output shaft by linkages such that they oscillate relative to each other, while completing one revolution inside the casing. The vanes, acting as pistons, thus enclose variable volume working spaces.
Patent DE-3026332-A1 (DE)
Title: Telephone subscriber contacts switching position detector - uses control unit functioning independently of exchange facility
Inventor: HUTT HANS
IPC: H04M3/38
Filed: 1980-07-11
Abstract: A control unit operating independently of the exchange facility senses the contacts associated with the subscriber terminals and places the result temporarily in a register. The contents of the store are retrieved at predetermined time intervals and/or on request from the exchange facility.
Patent DE-3026713-A1 (DE)
Title: Compact and energy saving fast full adder - using NOR elements commonly dependent on AND element
Inventor: ZIRKEL WOLFGANG
IPC: G06F7/501
Filed: 1980-07-15
Abstract: A rapid full adder has an inverter on all three inputs , NOR element on the two outputs and AND elements between the inverters and NOR elements. The adder is designed for reduced size and operating power compared to conventional devices and for reduced production costs. The circuit is arranged so that both NOR elements are commonly dependent on at least one AND element, e.g. they may both be dependent on two AND elements in common. Each common AND element is dependent on all three circuit inputs. The relationships are defined individually by two formulae for the outputs in which the input terms can be interchanged.
Patent DE-3027176-A1 (DE)
Title: Electronic telephone exchange circuit - controls start of charge meter at end of free call time following start of reconnection sequence
Inventor: FREYMADL GEORG DIPL ING
IPC: H04M15/12
Filed: 1980-07-17
Abstract: The electronic exchange has a facility for a subscriber to request reconnecting of a call to a different number, or similar facilities. When an incoming call arrives for the subscriber's own number a connection is made to an answering device. The caller is informed of the non-availability of the person being called and, when so selected, of the reconnection which is about the take place. He is further informed that, after a brief time lapse, his call, hitherto free, will be charged at the appropriate tariff. During and immediately following this recorded message the caller can terminate his call without accruing any charges. If he allows the reconnection to proceed, or, in the case of a message only, wishes to hear a repeat, the timer system cancels the charge suppression condition and starts the callers charge meter by sending the relevant charging inpulses. Instead of messages the information can be given by tone signals.
Patent DE-3029200-A1 (DE)
Title: Centrally controlled lighting installation for public buildings - has switches for individual lights allowing their operation independently of central switch
Inventor: CHRISTIANSEN DIETER
IPC: H05B39/04
Filed: 1980-08-01
Abstract: The lighting installation includes a normally-closed central switch (2) which can be opened against the action of a spring, to break the circuit to the lights (3,5,7). A first individual light switch (4) for the light (3) can be operated locally by an operating lever (12) in addition to being operable by attraction of a lever arm (11) by an electromagnet (11). If the central switch is opened briefly, the interruption of the magnetic field of the electromagnet causes the switch (4) to open due to gravitational force on the arm (11). Once the central switch is closed again, the switch contact (10) is opened so the switch (4) does not close again unless the lever (12) is used to close the contact (10). On the other hand, the switch (4) can be opened, even if the central switch is closed, by operating the operating lever (12) to pivot the arm (11) away from the electromagnet. A second individual switch (6) for lights (5) acts similarly to the first but uses an external lever arm (15) and a spring-urged normally-closed switch element (17) connected in series with the electromagnet (14).
Patent DE-3033133-A1 (DE)
Inventor: SCHROEER FRIEDRICH
IPC: A01B3/46
Filed: 1980-09-03
Abstract: 1. A semi-mounted two-way plough having a front plough frame (1), a main plough frame (6), which is rotatably mounted in the front plough frame (1) and has a plurality of plough member pairs (18), and a support wheel (9), which is retained by a stabilizer (7) which is hinged on the front plough frame (1) and is mounted at the rear end on the main plough frame (6), the main plough frame (6) comprising a bracket (25), facing the ploughed land, in the region of the support wheel (9), characterized in that the main plough frame (6) and the stabilizer (7) each consists of at least two parts (19, 20; 22, 23) flanged to one another ; in that the bracket (25) is curved or triangular ; in that the support wheel (9) is in the form of a caster-type wheel and runs within the working area of the plough on the unploughed land ; and in that the flange points (21, 24) in the main plough frame (6) and in the stabilizer (7) are situated in front of the caster-type wheel (9).
Patent DE-3033622-A1 (DE)
Title: Article cleaning system using water gun jet - involves three cleaning steps, e.g. chemicals injection, reaction step, and high pressure water flushing
Inventor: OBERDORFER GUIDO
IPC: B08B3/02
Filed: 1980-09-06
Abstract: The cleaning is carried out by spraying a mixture of water and chemicals in three phases. In the first phase the chemicals are mixed with low-pressure water and sprayed over the articles. The second phase consists of disconnecting the water supply and allowing the chemicals to react. The third phase consists of spraying with hot high-pressure water to wash away the chemicals. The low-pressure water is taken e.g. from the mains (1) and flows through a pipe (29) to an injector (12), where chemicals are drawn in through pipes (35) from their containers (31). The mixture is then sprayed over the articles by the spray gun (16). The hot water is drawn from a tank (3) by a pump (5) which delivers it at high pressure to the spray gun.
Patent DE-3042018-A1 (DE)
Title: Multicylinder IC engine valve gear - includes mechanism for cutting cylinders out with cam units which slide-fit on shaft, with uncoupled driver
Inventor: INDRA FRIEDRICH DIPL ING DR
IPC: F01L13/00
Filed: 1980-11-07
Abstract: The multi-cylinder reciprocating IC engine valve control mechanism is for designs with valves operated by a camshaft which permits arresting operation of the valves of at least one cylinder over a certain load range. These valves are stopped by uncoupling their operating cams from the camshaft while both valves are shut. The cams are in one unit for each cylinder, pref. mounted free to rotate on an axially-symmetrical part of the shaft. A driver on this allows the unit to be coupled to the shaft positively and at the correct angle.
Patent DE-3044538-A1 (DE)
Title: Recessed hardboard sheet suitable for surfacing processes - recess edges are slotted to protect recessed area from stress
Inventor: PELZ ERNST
IPC: B29C43/40
Filed: 1980-11-26
Abstract: A hardboard sheet, partic. from wood fibres and similar, with at least one shaped part; pref. a recess- has slots cut along in the area subjected to highest stress during its shaping process. These slots are close to the edge(s) of the shaped part but outside the actually deformed area and are therefore in an area which remains flat; they may be cut on one or both sides of the board and may be in rows. Method allows board to take tension stresses arising from the shaping process without affecting the shaped area, prod. can be subsequently surfaced without further processing.
Patent DE-3045578-A1 (DE)
Title: Radioactive radiation profiles plotted using several detectors - and computer to evaluate differences esp. with easily handled detectors
Inventor: KLEIN GERALD DIPL ING
IPC: A61N1/16
Filed: 1980-12-03
Abstract: A method of measuring radioactive radiation originating from the ground over a specific plot of land or building utilises two or more detectors (2,3) spaced at a distance (A) apart and at an equal height (H) above ground level; the readings from these detectors pass to a calculating unit (4) and are indicated at a display unit (5) as the difference between the two levels of radiation intensity (6,7) at the relevant locations. Two detectors are pref. used, and the data obtd. is fed cyclically and alternately to a central reception unit (10). The calculator (4) is pref. a computer. This may be programmed to indicate which of the two detectors is obtg. the highest reading. For obtg. readings of natural ground radiation and plotting the results as intensity profiles, more specifically in the manner of a relief map. The method and appts. enable the readings to be very rapidly taken and evaluated. The method can be used for extremely localised measurements for example in buildings occupied by humans and animals.
Patent DE-3045702-A1 (DE)
Title: Moulding hollow wood chipboard receptacles - in mould with central spring-loaded retractable plunger in mould cavity base to provide uniform chip distribution
Inventor: SCHOLLMAYER VALENTIN
IPC: B27N5/02
Filed: 1980-12-04
Abstract: A mould, to produce hollow bonded wood fibre/chip receptacles, consists of a lower female recessed tool to receive the material and top male tool; a central plunger moves into the base of the recess of the bottom tool and is spring-loaded. Moulds receptacles with uniform densification i.e. eliminates problem of excess densification at base.
Patent DE-3045900-A1 (DE)
Title: Washing waste gases and plant - using condensate from waste gas as cleaning liq. after reheating to dew-point
Inventor: BAUNACK FRITZ DIPL ING DR
IPC: B01D5/00
Filed: 1980-12-05
Abstract: Waste gases and/or heat exchangers or other plant components through which waste gases flow are cleaned using, as the cleaning liq., a condensate obtd. from the waste gas and circulated, purified and reheated to the dew point of the waste gas. Preferably, the condensate may be used for supplying a washing device for the plant items or for supplying a wet atomizer located in the waste gas duct. Used for any waste gas, flue gas or similar system where the gas requires to be purified, for example a heat exchanger in a wood chips drying plant. The method makes use of substances recovered from the waste gas itself instead of introducing outside substances.
Patent DE-3048044-A1 (DE)
Title: Oil burner flame tube of heat-resisting material - is good thermal insulator with low time-constant and has burner jet acting as injector
Inventor: ULRICH HELMUT DIPL CHEM
IPC: F23M9/06
Filed: 1980-12-19
Abstract: The flame tube of heat-resisting material for burners, partic. oil burners, conventionally has an opening towards the burner, further openings in the sidewalls and a closed downstream end. It (4) is made of material which is a good insulator, and has a low thermal time-constant. Axial distance between, and configuration of, burner nozzle (1) and flane tube inlet-opening (3) are such that the burner jet (2) acts as an injector through the opening. The flame tube end wall (5) around this is flat. Dimensions of, and distances between, inlet- and sidewall-openings (7) are such that the injector effect causes recirculation of part of the gas discharged from the latter.
Patent DE-3109512-A1 (DE)
Inventor: FRICK ADOLF
IPC: F23D11/44
Filed: 1981-03-12
Abstract: A burner has a gasification chamber (11) without air inlet openings so that the evaporation of fuel takes place essentially without air. A motor (15) drives wipers (17) which distribute the fuel over a heatable wall (19) of a gasification chamber 11 and remove deposits therefrom. A bellows (35) and a ventilator (45) comprise heat barriers between hot portions of the burner and the motor 15.
Patent DE-3113858-A1 (DE)
Title: Process for the acetoxylation of phenyl acetate
Inventor: LYONS JAMES EDWARD
IPC: C07C67/055
Filed: 1981-04-06
Abstract: Phenyl acetate is converted to phenylene diacetate at elevated temperatures and pressures using a palladium catalyst in the presence of an acetoxylating amount of oxygen, acetic acid and acetic anhydride. The main product is the para-isomer. Phenylene diacetate can be used as a solvent.
Patent DE-3113917-A1 (DE)
Title: Manual shift transmission for motor vehicles with overdrive shift mechanism
Inventor: SCHETTER THOMAS C
IPC: F16H63/30
Filed: 1981-04-07
Abstract: In order to avoid incorrect shifting in a manual gearshift transmission, especially for trucks, in which in addition to the usual gearshift positions an overdrive shift position is provided, whilst retaining an extended H-shaped gearshift pattern for the gearshift lever as in Fig.2, an axially displaceable coupling element (30), overlapping the transmission input shaft (3) and the transmission output shaft (7), is provided which is in constant drive engagement with the transmission output shaft (7) and by means of internal toothing (32) or external toothing (33) on the opposite ends can be brought into the gear position for direct drive connection between input shaft and output shaft or into the overdrive position by shifting the coupling element (30) in opposite directions from the neutral position shown in Fig.2. <IMAGE>
Patent DE-3114914-A1 (DE)
Title: Air inlet for compressors
Inventor: NAKANISHI KEIICHI
IPC: F04D29/42
Filed: 1981-04-13
Abstract: An air inlet for compressors comprises an inlet channel (28) which has a curved section (34). The inlet channel (28) is relatively short in the axial direction of the compressor, so that the overall length can be kept small. At least one guide insert (54) is situated in the curved section of the inlet channel and effects an essentially uniform speed distribution at the downstream end of the inlet channel. As a result, the axial dimensions can be kept small without a non-uniform speed distribution arising upstream of the rotor blades of the compressor. <IMAGE>
Patent DE-3115796-A1 (DE)
Title: Monovalent heating device for optional operation of a flow heater or of a heat pump
Inventor: HOELTER HEINZ ING GRAD
IPC: F24D12/02
Filed: 1981-04-18
Abstract: The invention relates to a method and a device for a monovalent heating device with optional operation of a flow heater or of a heat pump. The aim of the invention is to cover both operation types with only one heating device. According to the invention, this is achieved by the heating device having only one burner device which, in combination with a Stirling motor device (1), optionally operates the heater (2) of the latter or otherwise operates, directly by means of switching devices (8, 12, 13), the heat exchanger device (4). The switching members (8, 12, 13) can be arranged in the burner space and/or in the smoke gas offtakes (5, 6). The switching members (8, 12, 13) can be switched in such a manner that the heat exchangers (2) and/or (4) are used in such a manner that, with only one burner (3), a bivalent alternative and/or bivalent parallel method of operation via the heat pump (11) and the connected heating system (4) is possible. <IMAGE>
Patent DE-3118465-A1 (DE)
Title: Two-piece core laminate, especially for inductors
Inventor: WAASNER BRUNO
IPC: H01F27/245
Filed: 1981-05-09
Abstract: A two-piece core laminate, especially for inductors, can be provided which has two outer limbs, one centre limb and two yokes, which bound two windows (1), and in the case of which core laminate a T-shaped part (3) is pushed with the roof (8) of the T between the outer limbs (4) of an E-shaped part (2), an air gap being provided between the leg (6) of the T and the centre limb (5) of the E-shaped part (2), and a catch, which comprises a latching tab (11) and a latching recess (12), being provided between an end edge of the roof (8) of the T and the associated inner edge of the limb (4) of the E. In the case of such a core laminate, it is frequently desirable for further displacement of the T-shaped part to be prevented after the T-shaped part (3) has latched in the E-shaped part (2), in order to protect the constancy of the air gap width and hence of the inductance. This is achieved if both end pieces of the roof (8) of the T in each case project into a recess (9) in one of the outer limbs (4) of the E and are supported by means of the inner edge on a width-reducing step (10) of the outer limb (4) of the E. In this case, the shape (in the case of which each limb of the E has a recess in the region of the roof of the T, tapering in a stepped shape with respect to the width in the window region, into which recess the roof of the T projects in a fitting manner) has a special significance in conjunction with the air gap (9). <IMAGE>
Patent DE-3120696-A1 (DE)
Inventor: ADLER ERICH DIPL PHYS
IPC: B65G51/03
Filed: 1981-05-23
Abstract: Die Erfindung betrifft Verfahren und Vorrichtung zum automatischen Transport und zur Lageorientierung scheibenförmiger Objekte mit Orientierungsphasen auf pneumatischem Wege. Sie ist zur automatischen Positionierung von Halbleiterscheiben und Glassubstraten im Prozeß der Herstellung mikroelektronischer Bauelemente anwendbar und dient dort zur Vorpositionierung der Scheiben in den Koordinaten x, y und kleines Phi sowie zum anschließenden Keilfehlerausgleich. Durch das einheitliche pneumatische Transport-, Justier- und Steuerprinzip soll eine wenig aufwendige, schnelle und dadurch produktive Variante erreicht werden. Erfindungsgemäß werden die Scheiben auf eine Vorpositionierstation transportiert, dort in Drehung versetzt, am Scheibenrand pneumatisch abgetastet und bei Erkennung der Orientierungsphase durch Vakuum gestoppt. So vororientiert werden sie auf eine Keilfehlerausgleichseinrichtung geblasen, dort zur x-, y-Orientierung gegen Anschläge gedrückt und es erfolgt der Keilfehlerausgleich mit Hilfe einer pneumatisch gesteuerten Referenzplatte.
Patent DE-3122861-A1 (DE)
Title: Device for measuring the absolute pressure of air
Inventor: DIETZ HERMANN DR
IPC: F02D33/02
Filed: 1981-06-10
Abstract: A device for measuring the absolute pressure of air is specified, which manages without the use of mechanically stressed diaphragms. The device is based on a polarographic measuring cell which operates according to the principle of the diffusion limit current and consists of a solid electrolyte member which conducts oxygen ions and supports an anode and a cathode, which is exposed to the air to be measured and to which a constant voltage can be applied. The cathode supports a porous diffusion layer whose pores have diameters which are small by comparison with the mean free path length of the oxygen molecules. The pores have diameters of less than or equal to 0.1  mu m. In addition, the device is further fitted with a controlled heater, which is applied to the diffusion layer. <IMAGE>
Patent DE-3124163-A1 (DE)
Title: Telegraphy receiver for serial pulse telegrams
Inventor: KLEIN RETO DIPL ING
IPC: H04L25/06
Filed: 1981-06-19
Abstract: The receiver contains a plurality of shift registers (62) into which each received telegram is read. A read-only memory (74) is allocated to each shift register in which the pre-defined signal sequence of at least the telegram header is permanently stored. Furthermore, a clock generator (31) is provided which generates clock sequences with different baud rates which are proportional to the standard baud rates of serial telegrams. One of these clock sequences is in each case used to read the received telegram into one of the shift registers. When the telegram header is read into that shift register into which the telegram is read whose baud rate is the same as that of the telegram, this produces the same signal structure as in the allocated read-only memory. With every read-in clock, a comparator (75) compares the contents of the shift register with those of the read-only memory and generates a recognition signal if the contents of the register and the memory match one another. The new receiver is set automatically to the baud rate of the received telegram, thus removing the need for setting by means of external connections, thereby reducing the number of required external connections and increasing the reliability of the receiver. <IMAGE>
Patent DE-3126805-A1 (DE)
Title: Rolling mill for manufacturing endless spirals
Inventor: TRISEVSKY IGOR S
IPC: B21F3/02
Filed: 1981-07-07
Abstract: The invention relates to forming metals. The rolling mill for manufacturing endless spirals contains a rolling frame (2) which has conical working rollers (6, 7) which are fastened on shafts (8, 9) which are fastened in a flying manner on a rolling stand (10), arranged at an angle to one another and connected to a rotary drive and an arrangement (12) for angular displacement of the shaft axes in relation to one another. Also provided is a guiding and bending arrangement (3) for the spiral running out from the rolling frame. The rolling mill additionally contains according to the invention tubular bodies (14), in which the shafts (8, 9) of the working rollers (6, 7) are accommodated and which are fastened on the rolling stand (10) by means of pins (15), and baseplates (16) for mounting the rotary drive of the working roller, each of which is fastened on the respective tubular body (14) and is connected to the arrangement for angular displacement of the axes of the working rollers (6, 7) in relation to one another, as well as a winding device (15) which is arranged behind the spiral guiding and bending arrangement. The winding device (15) contains a winding spindle (24) which is arranged displaceably in the axial direction, made of individual segments (25) and mechanically connected to the rotary drive, the arrangement for increasing the spiral winding density and the arrangement for removing the spiral from the winding spindle. The invention can be used particularly advantageously for manufacturing spirals for friction discs. <IMAGE>
Patent DE-3126960-A1 (DE)
Title: Large-area neutron detector
Inventor: SERPEKIAN TAVIT DR
IPC: G01T3/00
Filed: 1981-07-08
Abstract: A large-area SPN detector, to the large-area sensor part of emitter, insulator and collector of which a terminal part leading to a measuring line at the front end is connected, comprises a pin-shaped terminal part (6), fixed according to the invention at the emitter (1) and having a transverse hole (8) through which the inner conductor (9) wound around the pin end and attached to the pin is brought; the centre piece of the terminal part (6) exhibits immediately above the connection to the emitter a mechanically stabilising diameter widening over a length which is sufficient for mounting an adapter piece (10) between the sensor and cable.