baber/WOPTO huggingface dataset:
Patent DE-3042461-A1 (DE)
Title: Composite piston for IC engine - has groove on internal rib to reduce peak surface pressure between parts
Inventor: WIEMANN LOTHAR DIPL ING
IPC: F02F3/00
Filed: 1980-11-11
Abstract: The piston has an upper section (1) of steel and a lower section (2) of aluminium. The upper section contains the crown and the upper part of the skirt and the lower section contains the lower part of the skirt with the gudgeon pin. The upper section has a dished crown forming part of the combustion chamber. It has radially outer and inner ribs (3,6) by which it is supported on the flat top of the lower section. The outer rib (3) has a circumferential groove (4) in its inner side at the part where it is supported on the aluminium lower section.
Patent DE-3044321-A1 (DE)
Title: Heat storage brick for electric storage heaters or ovens - made from sintered magnesite, which is mixed with other oxide(s) so heat capacity of brick is increased
Inventor: CARL HEINZ DIPL ING
IPC: C09K5/14
Filed: 1980-11-25
Abstract: The brick is made from a mixt. contg. MgO plus by wt. up to 20% oxide addns. with a m.pt. between 1000 and 1450 deg.C. The addns. are pref. dicalcium ferrite (DCF), viz. 2CaO.Fe2O3; and/or basalt; and/or monticellite, viz. CaO.MgO.SiO2. A pref. mixt. contains sintered magnesite with compsn. (I) 95% MgO, 0.58% Cr2O3, 3.2% SiO2, 0.81% Al2O3, 0.71% CaO, 1.7% Fe2O3, with a grain size of 40-67.5% of max. 0.02 mm, 7-14% at 0.02-1 mm, and 18-36% at 1-3.5 mm, which is mixed with 5-10% DCF. Another mixt. contains magnesite (I) with grain size 60-67.5% of max. 0.02 mm, 4-25% at 0.02-1 mm, and 8-25% at 1-3.5 mm, which is mixed with 2.5-10%, esp. 7.5% each of DCF and basalt. The bricks are pref. sintered at 1450 deg.C. The heat storage capacity of the bricks is increased w.r.t. natural sintered magnesite.
Patent DE-3046081-A1 (DE)
Title: Acoustic gas analyser - measures speed of sound from microphone membrane oscillations, having EM parts behind protective wall
Inventor: MAYER HUBERT DIPL PHYS DR
IPC: G01N29/024
Filed: 1980-12-06
Abstract: An acoustic gas analyser continuously measures the composition of gaseous mixtures of known components using the speed of sound in the gas as the measurement parameter. The speed of sound is determined from the frequency of an oscillator stimulated by the gas flow and acquired via a microphone (9 to 11) membrane (9) subjected to the gas press. on both sides. The measurement head is vacuum tight to prevent air ingress and has no electrical components in contact with the medium in case of formation of explosive mixtures. The vibrating membrane of the microphone is sealed off from electromagnetic parts (10,11) by a protective wall (12). The microphone electromagnetic parts consist of a magnetic yoke (10) with detector coils (11) and extension arms (21) passing through seals in the protective wall (12).
Patent DE-3103825-A1 (DE)
Title: Combined tomographic and cardiographic ultrasonic image-generating unit
Inventor: TSUTOMU YANO
IPC: A61B8/00
Filed: 1981-02-04
Abstract: In summary, ultrasonic echo signals are sampled sequentially and converted into digital echo data which are input into a first digital memory by individual sampled line and read out by individual raster line and transferred to a first buffer. The digital echo data, which are obtained as a function of successive beams emitted in a predetermined direction, are input by individual sampled line into a second digital memory and read out therefrom by individual raster line and transferred to a second buffer. The data stored in the first and the second buffers are read out for a digital-to-analog conversion and output selectively within a television picture interval to a single cathode ray tube for controlling the intensity of the electron beams thereof, with the result that tomographic and cardiographic images are formed in various regions of the cathode ray tube viewing screen.
Patent DE-3107358-A1 (DE)
Title: Method for generating a fluidised bed
Inventor: HERBERHOLZ PETER DR ING
IPC: B01J8/38
Filed: 1981-02-27
Abstract: Method for generating a fluidised bed having particle sizes which essentially decrease with increasing fluidised-bed height, fluidised-bed mass regulation by recycling discharged material, introducing fresh material and by drawing off material, the horizontal cross-section of the fluidised bed being modified by shaping actions from outside from the bottom upwards, from a zone having the largest cross-section via a zone having a continuously decreasing cross-section into a zone having the smallest cross-section, the particle-interstice volume ratio ( epsilon ) changing from a value  epsilon  = 0.45 - 0.75 in the zone of the largest cross-section to a value  epsilon  = 0.75 - 1.00 in the zone of the smallest cross-section. <IMAGE>
Patent DE-3111249-A1 (DE)
Title: Improved iron-type materials
Inventor: USUI MASAYOSHI
IPC: C21D8/06
Filed: 1981-03-21
Abstract: The iron-type materials of the present invention are produced in the form of pipes or rods (bars) by subjecting them to plastic deformation by drawing and then to an annealing treatment which is carried out under specified conditions; they have a flattened structure which is essentially free of recrystallisation, and a hardness which is greater than 55 to 125% of the hardness of iron and steel materials obtained by full annealing. The iron-type materials are superior to the conventional products with respect to the fatigue strength under flexing, vibrations, and the like.
Patent DE-3113989-A1 (DE)
Title: Water-soluble disazo compounds, preparation thereof and use thereof as dyes
Inventor: WENGHOEFER JOHANN DR
IPC: C09B62/513
Filed: 1981-04-07
Abstract: Disazo compounds of the general formula (1) <IMAGE> where M is a hydrogen atom or the equivalent of a metal, in particular of sodium, and the two X radicals are identical to or different from each other and each is vinyl or  beta -sulphatoethyl or  beta -thiosulphatoethyl, and each R is methoxy or ethoxy. They are prepared similarly to a known manner by coupling the diazonium salt of 4-vinylsulphonyl-, 4- beta -sulphatoethylsulphonyl- or 4- beta -thiosulphatoethyl sulphonyl aniline with 1-amino-8-hydroxy-3,6-disulphonic acid as bivalent coupling component in a strongly acidic medium and subsequent coupling of the resulting monoazo compound with the diazonium salt of the aromatic amines of the formula <IMAGE> where R and X are each as defined above, in a weakly acid to weakly alkaline medium. The novel disazo compounds are useful dyes having fibre-reactive dyeing properties, which dye for example wool and synthetic polyamide fibres, but in particular cellulose fibres, by the methods customary for fibre-reactive dyes, in fast greenish black shades.
Patent DE-3117723-A1 (DE)
Title: Transmission switch
Inventor: HIRAIWA KAZUYOSHI
IPC: G05G25/00
Filed: 1981-05-05
Abstract: A transmission (gear) switch comprises a moving switching element (20) which is moved with switching processes of the transmission, and a stationary switching element (40) having a number of contacts (52-56) within a shift (gear change, switching) housing (42). The contacts are located in positions which correspond to the gear selection (switching) positions of the transmission. <IMAGE>
Patent DE-3118173-A1 (DE)
Title: Pressurised cable arrangement containing optical fibres and having an in-line (straight) cable closure
Inventor: DEUSSER PETER
IPC: G02B6/44
Filed: 1981-05-08
Abstract: The invention relates to a pressurised cable arrangement containing optical fibres and having an in-line cable closure. The object is to provide a cable arrangement and, in particular, an in-line cable closure for such arrangements which can be used universally and are easy to assemble, but offer maximum reliability and ease of maintenance. The essence of the invention is that the housing of the in-line cable closure is configured in a pressure-resistant and pressure-proof fashion, each inserted cable which is not pressurised extends through a feedthrough which is cast in a pressure-resistant manner, and each inserted optical fibre end is laid in a separate and closed chamber. The invention is chiefly applied for laying optical fibre cables even under difficult conditions.
Patent DE-3119732-A1 (DE)
Title: Integrated fitting
Inventor: MAYER GERHARD DIPL PHYS
IPC: F16K27/12
Filed: 1981-05-18
Abstract: 3119732 withdrawn.
Patent DE-3123152-A1 (DE)
Title: Scraper chain conveyor
Inventor: HOELSCHER ULRICH ING GRAD
IPC: B65G19/28
Filed: 1981-06-11
Abstract: In a scraper chain conveyor (1) with a conveyor trough (4) and attachments (5, 12) on both sides of the conveyor trough (4) as well as a baseplate (8) which reaches under the conveyor trough (4) and is mounted on the guide (5) on the coal-face side and secured against falling out on the goaf side, a groove (7) in which the baseplate (8) engages is provided between the guide (5) on the coal-face side and the bottom flange (6) of the coal-face-side side wall (2) of the conveyor trough (4), and the baseplate (8) is mounted with vertical play on the goaf side on the guide (12) on the goaf side. <IMAGE>
Patent DE-3126385-A1 (DE)
Title: Method for continuous casting of steel
Inventor: TSUBAKIHARA OSAMU
IPC: B21B1/00
Filed: 1981-07-03
Abstract: The invention relates to a method for continuous casting of steel, in which a slab of good quality is obtained, the cross-section of the unsolidified zone of the slab being monitored in the transverse direction of the same during casting and the cooling pattern being controlled in such a manner that the cross-section corresponds to a predetermined standard cross-section.
Patent DE-3128794-A1 (DE)
Title: Method for finding and delimiting letters and letter groups or words in text areas of an original which can also contain graphical and/or image areas apart from text areas
Inventor: SCHERL WOLFGANG DIPL ING
IPC: G06V10/24
Filed: 1981-07-21
Abstract: An arbitrary printed original to be examined for text contents is optoelectronically scanned by a video system; the samples obtained are processed digitised line by line; when text is present, the extreme coordinates of objects in the form of letters, letter groups or words isolated in text lines and other information parts relating to these objects are determined and registered in lists by means of a number of method steps. <IMAGE>
Patent DE-3131217-A1 (DE)
Title: Instrument for modelling wax
Inventor: LANDBRECHT JOSEF G DIPL ING
IPC: H05B3/00
Filed: 1981-08-06
Abstract: The invention relates to an instrument for heating, melting and modelling thermoplastic materials. The instrument is intended in particular for modelling wax such as is required in dental technology. To make possible pulsed operation with rapid heating and rapid cooling, a semiconductor element, preferably silicon, is proposed as heating element, which is operated according to the "spreading resistance" principle. For transmitting heat to the place to be modelled, a metallic melt tip is proposed which is provided with a coating, for example of Teflon, in order to influence the cooling-time constant. <IMAGE>
Patent DE-3131245-A1 (DE)
Title: Method for narrow-gap submerged-arc welding of stainless steels
Inventor: PIKNA EDUARD DIPL ING
IPC: B23K9/18
Filed: 1981-08-06
Abstract: The purpose of the invention is the narrow-gap submerged-arc welding of stainless steels with economical utilisation of this technology in the welding of materials of relatively large thicknesses. This purpose is accomplished in such a way that the gaps of the material to be welded are prepared in such a way that the weld edges have an inclination of at most 2 DEG , submerged-arc welding being used, in which the welding powder is to be prepared by remelting a mixture of 1.5 to 5% by weight of quartz sand, 25 to 38% by weight of alumina, 1.5 to 7% by weight of manganese ore or low-carbon ferromanganese, 6 to 11% by weight of limestone, 7 to 17% by weight of fluorite, 2 to 3.5% by weight of potash or soda, 5 to 11% by weight of zirconium concentrate, 16 to 25% by weight of barium fluoride, 0.3 to 4% by weight of chromium(III) oxide and 6 to 10% by weight of kaolin, a welding current of 250 to 650 A and an arc voltage of 28 to 35 V being used while uniformly maintaining the minimum welding powder height of 35 mm, and with symmetrical weld bead deposition towards the weld edges at a distance from 3 to 10 mm. The weld edges are prepared in such a way that the gap widths between the surfaces to be welded are 12 to 22 mm for materials of a thickness of up to 150 mm, and the gap width is 16 to 28 mm for materials of a thickness of up to 350 mm. The invention is suitable for the welding of materials in the nuclear power industry.
Patent DE-3138118-A1 (DE)
Title: Method for identifying the authorisation of subscriber stations in telephone PABX systems
Inventor: SCHILLING HEINZ
IPC: H04M3/38
Filed: 1981-09-24
Abstract: The invention relates to a method for identifying the authorisation of subscriber stations in telephone PABX systems with dialling evaluators and authorisation evaluators. According to the invention, an authorisation check is not carried out only on receipt of the complete dialling information, but immediately following identification of the need for an authorisation check on the basis of the previously received digits of the dialled telephone number. This results in a minimum occupancy time of the system parts common to a multiplicity of connections and in a reduction of the technical switching cost of these system parts. <IMAGE>
Patent DE-3140352-A1 (DE)
Title: Injection internal combustion engine, particularly diesel internal combustion engine with direct injection
IPC: F02F1/42
Filed: 1981-10-10
Abstract: In the case of an injection internal combustion engine with an air intake duct designed as a swirl duct, pressurised gas is fed under control through one or more injection apertures into the valve chamber in order to influence the swirl. The injection apertures designed as slots or bores are arranged either in the peripheral wall of the valve chamber directly adjacent to the valve seat ring or partially or entirely in the valve seat ring. The bores or slots can therefore be easily sunk from the plane surface of the cylinder head or on the valve seat ring itself.
Patent DE-3145328-A1 (DE)
Title: Process for the preparation of cocondensates which form a weatherproof adhesive bond
Inventor: DIEM HANS DIPL CHEM DR
IPC: C09J161/34
Filed: 1981-11-14
Abstract: A further embodiment of the process for the preparation of aqueous solutions of products of the condensation of formaldehyde and at least urea, melamine and phenol, in which the molar proportion of phenol, based on the sum of melamine and urea, is from 0.05 to 0.25, and the molar ratio between urea and melamine is from 0.2:1 to 1:0.2, at a total molar ratio between formaldehyde and the sum of melamine, urea and phenol of from about 1.1 to 2, the condensation products being usable as adhesive resins, in which, in each case in a manner known per se, phenol, formaldehyde and up to 0.35 mol of an alkali metal bisulphite per mol of phenol are reacted to form a phenol-formaldehyde condensate, and formaldehyde and urea are reacted in a molar ratio of 2.5 or less to form a urea-formaldehyde condensate, and the reaction products are themselves reacted with melamine and formaldehyde in such a ratio that the molar ratios between melamine, urea, phenol and formaldehyde mentioned at the outset are either produced directly or after a further reaction with up to 75% of the total intended amount of urea, in accordance with Patent Application P 3125874.3, characterised in that an effective amount of phenol of less than 0.05, based on the sum of melamine and urea, is proposed.
Patent DE-3147265-A1 (DE)
Title: Anti-theft protection for vehicles
Inventor: KOUBECKY VLADIMIR
IPC: B60R25/10
Filed: 1981-11-28
Abstract: Anti-theft protection for vehicles with an electric alarm system which is triggered by a switching device (10) which has a cardanically suspended annular container (50) in which an electrically conductive fluid (51) and a mass sensor (42) and switching sensors (44) are located which dip into the contact fluid (51) when the container (50) is placed in an oblique position and trigger the alarm. The annular container (50) is provided with a releasable clamp device (28) which is released before the system is activated, so that the cardanically suspended container (50) can adopt a horizontal position, and which then holds the annular container on the housing (11) under the effect of a spring element (29). <IMAGE>
Patent DE-3150920-A1 (DE)
Title: Circuit arrangement for speed control of three-phase motors
Inventor: SCHRAEDER ALFONS DIPL ING
IPC: H02P1/26
Filed: 1981-12-18
Abstract: If a medium power three-phase motor (1) is supplied via a converter (1) for speed control purposes, and if a transformer (6) is connected between the converter (1) and the three-phase motor (2) for voltage matching to a medium-voltage network, the starting of the three-phase motor (2) at a very low voltage and frequency leads to saturation of the transformer (6). In order to avoid this situation, the converter (1) is connected directly to the motor (2) in the lower frequency and voltage range, bypassing the transformer (6). Once the converter (1) has reached its maximum possible voltage, the transformer is initially magnetised and is subsequently connected between the converter (1) and the three-phase motor (2), so that it is possible to increase the motor voltage further. <IMAGE>
Patent DE-3201237-A1 (DE)
Title: Seating, lying furniture or the like
Inventor: GERTH WALTER
IPC: A47C3/023
Filed: 1982-01-16
Abstract: The invention relates to seating, lying furniture or the like, in particular of the tubular steel furniture design, consisting of a support frame and a seating or lying shell connected thereto and intends to provide furniture of this type with less expenditure in material and padding, but which is nevertheless equivalent, if not superior, to the known designs of this furniture. To achieve this aim, the seat shell is to be attached laterally in each case to a connecting piece which is retained swivellably on the bearing frame, the intention being for spring elements supporting the swivel movement to be inserted in the swivel path.
Patent DE-3203080-A1 (DE)
Title: Tie-round channel
Inventor: BUCKERT GUSTAV
IPC: B65B13/06
Filed: 1982-01-30
Abstract: The invention relates to an improvement to a tie-round channel of packaging machines. As is known, in tie-round channels which can be adapted to the size of the article to be packaged, a curve of a second guide channel is introduced into a first guide channel. This curve is displaceable in the longitudinal direction of the first guide channel. In known devices, when the curve is being displaced the channel flaps of the first guide channel are opened very suddenly, thus easily leading to damage. The invention reduces the opening speed of the channel flaps in that a resilient plate extending in the direction of the guide channel is located, for example, between the opening part of the curve and the channel flap. This resilient plate already initiates the start of the opening movement of a channel flap when the opening part is still only located at the channel flap preceding it.
Patent DE-3206310-A1 (DE)
Title: Process for obtaining base materials for edible flavourings
IPC: A23L27/10
Filed: 1982-02-22
Abstract: Published without abstract.
Patent DE-3208314-A1 (DE)
Inventor: HAEFNER RAINER
IPC: B42F13/12
Filed: 1982-03-08
Abstract: A holder with a stack of sheets, each of which is provided with a hole through which a pin passes, the sheets being provided with a slot that extends from the hole to the edge of the sheet, and a cutout that is diametrically opposed to the slot. An annular part formed from a thin plate of stiff and, optionally, easily bent material is secured to the pin. This passes obliquely upwards through the slots and cutouts in the sheets and is arranged with about one half beneath the stack of sheets, the other half being above the stack (FIG. 4).
Patent DE-3209424-A1 (DE)
Title: Perylene-3,4,9,10-tetracarboxylic acid bisbenzimidazole compounds and their use
Inventor: GRASER FRITZ DIPL CHEM DR
IPC: C09B5/62
Filed: 1982-03-16
Abstract: Perylene-3,4,9,10-tetracarboxylic acid bisbenzimidazole compounds of the formulae <IMAGE> in which R represents hydrogen, methyl or chlorine and n represents 7 to 12 - if R is -H or -CH3 - or n represents 5 to 10 if R is chlorine, and the use of these compounds for dyeing plastics in bulk. The compounds give reddish-violet colorations. The transparent colorations display a red fluorescence.
Patent DE-3209459-A1 (DE)
Title: Suspension device for mounting a heater cladding to the front of a heater
Inventor: KALKA LUDWIG
IPC: F24D19/06
Filed: 1982-03-16
Abstract: Suspension device for a heater cladding, which is mounted on the front of a heater, having two support elements which are arranged between the heater and the cladding and from which the cladding can easily be stripped and fitted to the heater at a variable distance, characterised in that they are constructed as sliding tubes which can be pushed into one another telescopically and are arranged on swivellable connecting elements both on the heater and on the cladding.
Patent DE-3210220-A1 (DE)
Title: Method for producing a building for radio-engineering devices with an antenna at the top, and an assembly aid therefor
Inventor: GOEBEL RUDOLF DIPL ING
IPC: E04B1/35
Filed: 1982-03-19
Abstract: A building for radio-engineering devices with an antenna at the top has a foundation with cladding (1) which is to be arranged thereon and protectively surrounds the antenna. In order to reduce the overall construction time of the building, and in order to minimise weather-related construction delays, the cladding (1) is at least essentially completely prefabricated on an assembly aid (6) such that it is spatially separated and is independent of the foundation. The assembly aid (6) has a supporting device (5) at the bottom, on which the cladding (1) can be constructed at ground level, and a device (12) for the engagement of lifting elements (13) of a lifting device, in order to be able to place the assembly aid (6) together with the prefabricated cladding (1) on the upper edge of the foundation. In order to allow the entry from the lower edge (14) of components (profiled support 7) of the assembly aid (6) which engage under the cladding (1) when said aid is placed on the foundation, recesses are provided there so that the lower edge (14) of the cladding (1) can be placed flat on the upper edge of the foundation, despite being supported on the supporting device (5) at the bottom, and can be mounted there, after which the assembly aid (6) is dismantled. The assembly aid (6) has a central vertical support (9), on whose upper end a weather-protection roof (10) is supported which may have a supporting structure consisting of profiled supports (21) which may form part of the device (12) for the engagement of the lifting elements (13). <IMAGE>
Patent DE-3210725-A1 (DE)
Inventor: LANTZSCH REINHARD DIPL CHEM DR
IPC: C07C49/84
Filed: 1982-03-24
Abstract: A process for the preparation of a methyl ketone of the formula <IMAGE>   in which R1 is alkyl, alkenyl, alkinyl, optionally substituted aryl or optionally substituted heteroaryl, R2 is alkyl, R3 is alkyl or R2 and R3, together with the carbon atom to which they are bonded, from a cycloalkyl ring, comprising reacting a methyl sec.-alkyl ketone of the formula   <IMAGE>  with a halide of the formula R1-CH2-X in which X is halogen, in the presence of a base, a diluent, and a phase-transfer catalyst.