baber/WOPTO huggingface dataset:
Patent DE-3008391-A1 (DE)
Title: Sound reproducing device for electric guitar - has bridge holding line of piezoelectric converters inside metal housing above string holder
Inventor: HAUSKE GEB KLEIN
IPC: G10H3/18
Filed: 1980-03-05
Abstract: The sound reproduction system for an electric guitar uses a piezoelectric converter element with a metal body enclosing a line of piezoelectric converters, located under the bridge of the instrument. The number of converters corresponds to the number of swings, and the metal housing reduces hum. The bridge is inverted V-shaped, and fits into a slot across the string holding member, immediately adjacent to the holes for the strings. A connecting wire from the converters passes directly downwards through a hole at the centre of the slot. The screening casing is connected to the earth connection of the cable.
Patent DE-3008818-A1 (DE)
Title: Jointing sleeve for HT cables - with plastic cylinder over metal tube and insulating tape wraps
Inventor: RENFTEL WERNER DIPL ING
IPC: H02G15/24
Filed: 1980-03-05
Abstract: A jointing sleeve for a high-tension cable consists of a thin, mechanically stable and non-magnetic metal tube which is pushed under the ends of the plastic cable insulation around the cooled cavity. A conductive layer of plastic, consisting of two half-cylinders, is clipped over this tube and the remaining space between the staggered ends of the plastic insulation is filled up by wraps of self-welding or insulating tapes which become crosslinked by the action of heat. These tapes can consist of an ethylene-propylene copolymer. An outer conductive layer, a metallic screen and a corrosion protection complete the sheath. This is a very suitable cable joint for RT conductors in a cooled tubular plastic insulation.
Patent DE-3011087-A1 (DE)
Title: Tri:chloroacetic anhydride prodn. - by heating penta:chloroethyl tri:chloroacetate and tri:chloroacetic acid, opt. with amine or phosphine catalyst
Inventor: KLUG HELMUT DIPL CHEM DR
IPC: C07C51/56
Filed: 1980-03-22
Abstract: Prodn. of trichloroacetic anhydride (I) comprises reacting a mixt. of pentachloroethyl trichloroacetate (II) (prepd. by exhaustive chlorination of ethyl trichloroacetate (III)) and trichloroacetic acid (IV) at mole ratio 1.5-1:1.5. Reaction is at 120-250 deg.C, opt. in presence of 0.001-3 wt.%, on the starting mixt., of a sec. or tert. amine or phosphine (or their salts) as catalyst. Pref. (III) is chlorinated in presence of (IV), esp. using free radical initiators and- or UV light, and (III) is made by reacting ethanol with a large excess of (IV) with distillative removal of water formed. The reaction mixt. from this stage is then directly subjected to chlorination and conversion to (I). Reaction is carried out at a higher temp. (therefore more rapidly) than the known method of co-dehydrochlorination of trichloroacetyl chloride and (IV), and by-prod. HCl is easily removed by chlorinating (III) in presence of (IV) as diluent, chlorine conversion is improved and in the esterification step, ethanol conversion is practically quantitative.
Patent DE-3013726-A1 (DE)
Inventor: PORTZ WILHELM DIPL CHEM DR
IPC: C01B32/942
Filed: 1980-04-10
Abstract: 1. Process for making calcium carbide from lime and a carbon carrier in a closed electrothermal furnace with a power of more than 20 megawatts, in which the electrodes are arranged symmetrically in the corners of an equilateral triangle, which comprises : using at least 40% of the total carbon component in the furnace burden in the form of a carbon carrier consisting of anthracite, petroleum coke and/or lean coal, the carbon carrier with an initial content of volatile constituents of more than 5.0% having been subjected to thermal pretreatment at increased temperature for as long as necessary to establish a residual content of volatile constituents of less than 5.0% and having been separated into a fraction consisting of particles with a size of 3 to 10 mm and into a fraction consisting of particles with a size of more than 10 up to 25 mm ; the fraction of smaller particles being introduced into a central region inside the furnace lying between the electrodes, and the fraction of larger particles being introduced into a peripheral region of the burden surface area inside the furnace which lies outside the triangle formed by the electrodes.
Patent DE-3023839-A1 (DE)
Title: Multilayer flexible foil material - has layers separated by parallel spacer rods or tubes usable as frame members for hall erection
Inventor: MENDE ERNST WILHELM
IPC: E04D5/10
Filed: 1980-06-25
Abstract: The laminated, chamber-forming foil material comprises at least two continuous parallel webs of flexible foil (4-7) which are arranged with parallel spacers (8-10) between them. It can be used, e.g. to erect a hold or enclosure by inserting suitably shaped rigid frame members through the spaces between the layers. The spacers are themselves formed by the load bearing frame members and may be tubes, hollow rods etc. in plastics, metal, wood etc. The material may be used for erecting a greenhouse, large tent, or hall, when the rods of the frame members are anchored in the ground.
Patent DE-3024261-A1 (DE)
Title: Piezoelectric microphone housing in telephone subscriber's handset - guards against electromagnetic pick-up by internal system and two decoupling capacitors
Inventor: SCHIERL HANS
IPC: H04R1/04
Filed: 1980-06-27
Abstract: To eliminate from the power supply circuit the pick-up of electromagnetic waves, e.g. from a radio station, which would tend to be rectified in the power supply diodes (G1,G2) and subsequently amplified in the amplifier (V) for the piezoelectric microphone (PW), the circuit provides a metallised screen (S) inside the microphone casing. Furthermore, both power supply leads (A1,A2) are decoupled against that metal layer (S) by capacitors (2nF). The effect of this measure is that the cross-talk effect is reduced by about two orders of magnitude.
Patent DE-3033428-A1 (DE)
Title: Oxygen meter for IC engine exhaust gases - has parallel flow regulators to set range and compensate for aging without interrupting measurements
Inventor: ROHR FRANZ-JOSEF DR
IPC: G01N27/407
Filed: 1980-09-05
Abstract: Solid electrolyte conducts oxygen ions and has two or more electrodes. The first electrode is a measuring electrode and borders on a gas channel containing a regulator that keeps the gas flow constant and leading to the source of the gas being measured. Both electrodes can be connected ot a dc voltage so source via an ammeter. A second regulator is located in the gas channel and sets the flow to a given constant value. The second regulator is in parallel with the first. A bypass line can be connected in parallel with the gas channel and bridges that part of the channel in which the measuring electrode is located. The bypass allows part of the gas flow to be bled off before the measuring electrode. A third constant-flow regulator may also be connected in parallel with the other two. The three regulators may have the same or different cross-sections. The regulators can be switched in and out to continuously adjust the meter's measurement range and/or sensitivity without interrupting measurements. Changes in the meter's range due to ageing or contamination of the electrodes can also be compensated. The meter therefore needs little maintenance.
Patent DE-3036566-A1 (DE)
Title: Coin path lock for e.g. vending machines - has latch operated by coin moving over chute from inserting slot to collector, which can move lock into coin slot
Inventor: WICKER HERBERT
IPC: G07F1/02
Filed: 1980-09-27
Abstract: The device for parking meters prevents coin insertion into a defective meter. It can be applied to any other coin operated machine such as vending machine. It has a locking element closing the inserting slot. The element is so designed that it is moved from the inserting slot region when a coin is pressed into its slot. In the transport path of the coin from the slot to the collecter is mounted a latching device, actuatable by the coin itself. The latching device actuates the locking element into a position blocking the coin insertion slot. Pref. the latching device has a scanning lever which swivels about an axis against a spring force, whose free end protrudes into the coin transport path (chute). The device may be fitted with a delatching mechanism so engaged by the latching device that a coin insertion provides the latching and its removal delatching of the mechanism.
Patent DE-3038485-A1 (DE)
Title: Non-slipping drawing ruler - has non-adhesive braking device on underside bearing against paper
Inventor: VERLEGER KARL-HEINZ
IPC: B43L12/00
Filed: 1980-10-11
Abstract: The ruler has, on its bottom surface bearing against the drawing paper, a device preventing it slipping on the latter, while not adhering to it. Typically, this can consist of a braking edge protruding slightly beyond this surface (2), and pressing into the paper. This edge can be formed on a lengthwise V-section ridge in a groove parallel to the lengthwise edges of the ruler, or alternatively by a series of points. Alternatively, self-adhesive labels can be used, stuck to the surface of the ruler.
Patent DE-3042515-A1 (DE)
Title: Rotary adjustable electronic component - has step reduced diameter spindle for adjustment control and to accommodate miniature component
Inventor: MATSUI HIROSHI
IPC: H01C10/14
Filed: 1980-11-11
Abstract: The constructional elements of a rotary adjustable electronic component, e.g. a resistor, are suitable for small dimensional installations and avoid problems such as irregular adjustment characteristics when small diameter adjustment spindles etc. are used. The design uses a narrowed spindle to enable front facia apertures to be covered whilst providing a larger adjustment spindle attached to a small dimension component. A threaded bush (11) is used to bolt (nut 19) the component to the equipment chassis (14). An operating spindle (12) passes through the bush (11) and has a rear wiper plate (13) to carry the wipers (20) which connect with the resistive substrate (23) track fixed to the rear of the support bush (11). The centre spindle (12) reduces in diameter three times from adjustment knot end through the bush (11) and again to accommodate the wiper support (12',13) to enable a small component to be reliably adjusted. The component may also be a variable capacitor or inductor.
Patent DE-3047956-A1 (DE)
IPC: D02G3/32
Filed: 1980-12-19
Abstract: 1. Apparatus for performing a method of making an elastic twist, in which an elastomer thread of about 145 dtex to 310 dtex is adhesively twisted with two yarns having a thickness of 100 to 12 500 dtex consisting of polyvinyl chloride, polyvinyl cyanide, polyacrylonitrile and/or wool threads, the surface of the yarns being swollen at a pressure of between approximately 0.1 and 0.2 bar in hot steam at a temperature of about 70 degrees C for up to 10 minutes, in order to loosen them and obtain the adhesion, the elastomer thread being given a draft with respect to the yarns during the twisting operation, characterised in that the draft of the elastomer thread (10) is produced before twisting by sliding friction on at least one friction surface (20), the sliding friction force being controllably variable per unit of time by a control device (16).
Patent DE-3101273-A1 (DE)
Title: Devices for gasifying solid roughly comminuted fuels and their use for combustion chambers which were previously heated with burners for liquid or gaseous fuels
Inventor: PILLARD MARCEL
IPC: F23C1/10
Filed: 1981-01-16
Abstract: A gasifier according to the invention consists of a gasifying chamber (1) which is divided by vertical separating walls (2). The bottom (7) of the chamber (1) contains air nozzles (8). The separating walls establish passages and the chamber contains at one end of each passage a device (5) for supply of the half-comminuted solid fuel (6). The chamber (1) consists of a waste gas pipe (4) and of an opening (11) for ash removal. One application is the supply of fuel of one or more gas burners of a hot gas generator which was previously heated with burners for liquid or gaseous fuels. The invention is based on the principle of 2-stage combustion. <IMAGE>
Patent DE-3103115-A1 (DE)
Title: Collecting container for marbles
IPC: A63F7/30
Filed: 1981-01-30
Abstract: Collecting container for marbles, this consisting of a body which is of roof-like, dome-like and/or vault-like design above a standing face and in the surface of which are formed at least one recess and one rolling face which forms a small acute angle with the standing face and which therefore has a small angle of inclination. <IMAGE>
Patent DE-3109064-A1 (DE)
Inventor: SOECHTING KLAUS DR
IPC: A01G15/00
Filed: 1981-03-10
Abstract: The invention concerns a method and apparatus for dispensing of oxygen and liquids in biological systems, wherein the dispensing is powered by a drive gas formed by the continuous catalytic decomposition of hydrogen peroxide to form water and oxygen. The decomposition of hydrogen peroxide takes place in stages, wherein in a first step only a first amount of gas is liberated in a first container and a further decomposition of hydrogen peroxide takes place in one or more further containers. This method and apparatus are particularly suitable for the continuous production of oxygen, decontamination and disinfection in aquaria and free standing water as well as for the watering of plants and the supply of drinks for animals, where suitable active ingredients can be added to the water.
Patent DE-3114736-A1 (DE)
Title: Internal pipe-joint connection
IPC: E03F3/04
Filed: 1981-04-11
Abstract: The invention relates to an internal pipe-joint connection, in particular for concrete and reinforced-concrete pipes which have an internal, corrosion-resistant plastic lining, preferably consisting of rigid PVC, there being provided, between the end sides of the pipes, an elastomeric compression profile which engages partially into a chamber of at least one pipe. In order to be able to produce a pipe-joint connection of this type in a simple and cost-effective manner and to obtain continuous corrosion protection, the invention proposes that the chamber be arranged in a prefabricated chamber profile which consists of comparatively rigid material, in particular rigid PUR or rigid PUR foam, and that the chamber profile be connected to the plastic lining in a liquid-tight and frictionally locking manner. <IMAGE>
Patent DE-3117223-A1 (DE)
Title: Flow-rate measuring device for electrically conductive, flowing media
Inventor: HARTMANN EDUARD
IPC: G01F1/58
Filed: 1981-04-30
Abstract: A flow-rate measuring device which is based on the induction law for electrically conductive media, in the case of which, according to Figure 2, the induction voltage produced by the medium flowing through a magnetic field being picked off by means of electrodes (16) as a measurement signal for a measurement transmitter (20) has (according to the prior art) in the case of which the electrodes (16) are flush with the inner wall (10) of the flow channel (11) the disadvantage that the measurement result is corrupted in the event of there being gas enclosures in the medium. In order to avoid this disadvantage, in the case of the invention, the ends of the electrodes (16) are provided with projections (17) which project into the flow channel and by means of which, as experiments have shown, such disturbances of (interference with) the measurement accuracy are avoided. <IMAGE>
Patent DE-3118205-A1 (DE)
Inventor: VOGELHUBER PETER
IPC: F16H21/36
Filed: 1981-05-08
Abstract: A printing unit is guided along a straight line in parallel relation with the printing plane of a printing support. A device is arranged to pivot the printing unit between at least two printing supports spaced angularly apart. The device includes a coupling assembly interconnecting the printing unit with a drive member. A part of the coupling assembly includes a slotted crosshead or plate in which rollers move through branch slots disposed angularly to one another. Due to the guidance afforded the printing unit as it is pivoted between different angularly spaced printing supports, it moves along a curve significantly flatter than the arc of a circle on which the printing planes of the printing supports are located.
Patent DE-3120606-A1 (DE)
Title: Valve for pressure limitation in hydraulic systems
Inventor: MELZER HANS-HARALD DIPL ING
IPC: F16K17/04
Filed: 1981-05-23
Abstract: A valve (1) for pressure limitation in hydraulic systems comprises a housing (2) with a stepped bore (3), the first bore (4) serving as an inlet and an opening (6) arranged at the circumference of the second bore (5) serving as an outlet. As a valve element use is made of a spring-loaded piston (7) in the second bore (5), the said piston delimiting with this bore an annular gap (8). The piston (7) has a throttling piston (10) arranged in the first bore (4) and a closing surface (12) which forms a seal with the radial annular or seating surface (11) of the stepped bore (3). The throttling piston (10) has a cylindrical collar (13) which adjoins the closing surface (12) and adjoining which is a gradually tapering portion (14). With the piston (7) in motion, the tapering portion (14) interacts with a circumferential edge (19) in the first bore (4) to produce a throttling gap (23) which changes gradually with the piston stroke. By means of this throttling gap, the piston (7) is decelerated by the throttling during opening and, during closure, the gap produces the first of a double throttling to damp the piston (7). The second throttling is achieved by the displacement through the annular gap (8) of a cushion of fluid situated between the closing surface (12) and the seating surface (11). <IMAGE>
Patent DE-3121511-A1 (DE)
Title: Method for a pulse code modulation system
Inventor: DIRR JOSEF ING GRAD
IPC: H04N7/24
Filed: 1981-05-29
Abstract: In the currently known methods of pulse code modulation, a pseudo-ternary code is used for known reasons. In this process, sine-squared or sine-half-wave pulses, which mark one characteristic state, are provided during the transmission. The other characteristic state is zero. One disadvantage of this coding is that a wide frequency band is required and that a transmission via carrier frequency systems is not possible. These defects are avoided in the invention by the fact that a binary code which is formed from the half-waves or periods of a sinusoidal alternating current with the characteristic states of large and small amplitude values is formed, is provided for the coding and is sent in an uninterrupted sequence of positive and negative half-waves. In this arrangement, the transmission can occur in time-division multiplex or frequency-division multiplex.
Patent DE-3122056-A1 (DE)
Title: Device for crushing concrements present in the body of a live organism
Inventor: GUDDEN FRIEDRICH DIPL PHYS PRO
IPC: A61B17/22
Filed: 1981-06-03
Abstract: The invention relates to a device for crushing concrements (3) present in the body of a live organism (4), comprising a focussing chamber (15) which is part of an ellipsoid of revolution, in one focus (17) of which shock waves can be generated and which is aligned relative to the organism such that the concrement lies in the other focus. For localisation of the concrement the focussing chamber (15) is mechanically connected to an X-ray examination device (5, 6) suitable for localisation, preferably a stereo X-ray examination device. <IMAGE>
Patent DE-3126636-A1 (DE)
Inventor: MOHR DIETER DR DIPL CHEM
IPC: B41N1/08
Filed: 1981-07-06
Abstract: The plate-, foil- or strip-shape support materials for offset printing plates are based on chemically, mechanically and/or electromechanically roughened aluminum, or on one of its alloys. Optionally, the aluminum may also have an aluminum oxide layer produced by anodic oxidation. One of the two surfaces the support material has a hydrophilic coating of at least one salt-type hydrophilic organic polymer which is a complex-type product obtained by reacting (a) a water-soluble organic polymer having acid functional groups containing phosphorus or sulfur (for example, polyvinylphosphonic or polyvinylsulfonic acid) with (b) a salt of an at least divalent metal cation. In a process for manufacturing this support material, the complex-type reaction product, dissolved in an aqueous acid, is applied to at least one surface of the support material and the support material thus modified is dried. It is also possible, however, to produce the complex-type reaction product of the components (a) and (b) on the support material. The support material is used in the preparation of offset printing plates having a light-sensitive layer.
Patent DE-3128055-A1 (DE)
Title: Method for the production of seamless metal tubes
Inventor: HAYASHI CHIHIRO
IPC: B21B19/10
Filed: 1981-07-16
Abstract: The invention relates to the production of seamless metal tubes by a cross-rolling method, e.g. the Mannesmann mandrel rolling method or by means of a press piercing method, e.g. the Ugine-Sejournet method. Tube blanks to be processed are reduced in outside diameter with the aid of a cross-rolling mill having three or four rolls without the use of internal sizing tools such as a mandrel point and a mandrel bar, giving a significant improvement in the wall eccentricity and a higher quality of finished product. The method according to the invention permits a reduction in the number of billet sizes as stock for the production of the tubes.
Patent DE-3128962-A1 (DE)
Title: Process for preparing alkylene glycol diethers
Inventor: SCHEFFEL GUENTER DIPL CHEM DR
IPC: C07C43/10
Filed: 1981-07-22
Abstract: In this process, an ether is reacted with alkylene oxide in the presence of metal halides and compounds which are in the form of boric acids and contain active hydrogen atoms. The combination of metal halides and boric acids represents a catalyst system which exhibits a very high degree of selectivity with regard to higher alkylene glycol diethers and to a very large extent eliminates the formation of by-products.
Patent DE-3129936-A1 (DE)
Title: Composition for cleaning and caring for natural fibre products
Inventor: FRUEHBAUER CARL
IPC: D06L1/12
Filed: 1981-07-29
Abstract: The invention relates to a composition for cleaning and caring for natural fibre products such as furs, hides and textiles based on natural fibres, which consists of water, mink oil, an emulsifier and, where appropriate, other customary additives dry cleaning in. Owing to its product-preserving, caring, revitalising and odour-binding effect it is very suitable for cleaning and/or caring for natural fibre products.
Patent DE-3133311-A1 (DE)
Title: Method for synchronisation of a converter synchronous motor to a supplying mains power supply
Inventor: LOESEKANN WOLFGANG DIPL ING
IPC: H02P1/52
Filed: 1981-08-22
Abstract: The invention relates to a method for synchronisation of a converter synchronous motor to a supplying mains power supply via converter, in the case of which method the mains power supply and the motor are at approximately the same frequency. Pulses are derived from the mains power supply voltage via a trigger stage (12) and are compared with corresponding pulses from a three-phase (rotating field) detection system (4, 13) of the motor (3) in a logic device (11). If the phases are the same, the pulses which are derived from the mains power supply voltage are connected to the motor converter (5) in order to control the valves, and the pulses which are derived from the detection system are suppressed, the voltage in the DC intermediate circuit at the same time being set to a fixed value via the mains power supply converter (6), and a synchronising switch (18, 19) then being connected. <IMAGE>