baber/WOPTO huggingface dataset:
Patent DE-2938510-A1 (DE)
Title: Flocculation with cationic polyelectrolyte - added to part of aq. system before combining with the rest
Inventor: HORN DIETER DIPL CHEM DR
IPC: C02F1/52
Filed: 1979-09-24
Abstract: Flocculation of negatively charged solid particles in aq. systems is affected by adding a cationic polyelectrolyte (I). The process is carried out by (a) adding 40-100% of the amt. of (I) required for optimum flocculation to 25-75% of the total amt. of the aq. system, (b) homogeneously dispersing the added (I) in the aq. system, (c) combining the mixt. with the remaining 25-75% of the aq. system, and (d) adding the remaining 0-60% of (I). The process is esp. applicable to fibre and filler slurries in papermaking machines, but can also be applied to sewage, waste waters, etc. Compared with adding the whole amt. of (I) to the whole aq. system, the process increases the flocculation rate and/or the degree of flocculation.
Patent DE-2944375-A1 (DE)
Title: Hard workable polar wax prepn. - by oxidn. of ethylene! copolymer with oxygen gp.-contg. co-monomer esp. vinyl acetate
Inventor: KORBANKA HELMUT DIPL CHEM DR
IPC: C08F8/00
Filed: 1979-11-02
Abstract: Ethylene copolymers having melt flow indices 0.01-400 g/10 min. and comprising ethylene polymerised with 0.5-50 wt.% olefinic monomers having O-contg. functional gps., are used in the prodn. of new easily workable, hard polar waxes, by ethylene copolymer oxidn. with O2 or O2-contg. gases. The process comprises heating the copolymer melt dispersed in a dispersant inert w.r.t. O2, pref. water, at temps. between copolymer m.pt., under over- pressure 0-100 bar, with steady, intensive mixing with O2 or O2- contg. gases, opt. in the presence of wetting agents and/or catalysts. Hard polar waxes obtd. having drop-forming temps. 80-110 deg. C, needle penetration-index below 10 mm. 10 power minus 1 and acid indices up to 200, are claimed..
Patent DE-2945145-A1 (DE)
Title: Control system for three=phase converter - applies voltage varying at output frequency times number of phases to three converter sections
Inventor: GRUMBRECHT PETER DIPL ING
IPC: H02M5/27
Filed: 1979-11-06
Abstract: The three phase converter with a return section for each phase, for operating a machine at high loads and low speeds, with their output sides star connected, reduces the blind loading. Within the control region, each section is fully controlled by a variable additional voltage. The resulting combined output voltage is sinusoidal. Each section is cyclically reversed at the output frequency of the direct converter. The frequency of the additional control voltage corresponds to the output frequency multiplied by the number of phases. The control voltage is obtained from the differences of maximum and minimum sinusoidal values.
Patent DE-2947986-A1 (DE)
Title: Near field Cassegrain antenna - has lobe widened by moving region of auxiliary reflector between horn radiator and collecting reflector
Inventor: REBHAN WOLFGANG DIPL ING
IPC: H01Q3/16
Filed: 1979-11-28
Abstract: The antenna consists of a primary radiator (1),(eg a horn), an auxiliary reflector (2), a collecting reflector (3) and a main reflector. The auxiliary reflector is located behind a central hole (5) in the main reflector. A movable concentric region (6) is located on the auxiliary reflector. The magnitude of the movement is chosen so that the reflected wave undergoes a phase shift amounting to 120 to 180 degrees at the antenna's aperture depending on the diameter of the main reflector. The radiation lobe of the antenna can thereby be widened without mechanically affecting the collecting reflector and without defocussing the exciter.
Patent DE-3002263-A1 (DE)
Title: Pipe wrapping bandage - made of PVC with plasticiser or rigid PVC
Inventor: BOHLMANN KARL HEINZ
IPC: B29C61/10
Filed: 1980-01-23
Abstract: A wrapping bandage for use in sealing leaking spots in piping and for pipe insulation consists of a thermoplastic material which is automatically restored after it has been stretched. Suitable materials are PVC contg. a plasticizer or rigid PVC. The former need not be wrapped very tightly nor does it require the applicn. of heat. Rigid PVC is suitable for higher internal and external pressures but requires the applicn. of heat above the stretch temp.
Patent DE-3007144-A1 (DE)
Title: Monolithic silicon integrated semiconductor circuit - where channel stopper zone is formed in base of trench, which is then filled with silica
Inventor: MURRMANN HELMUTH DR RER NAT
IPC: H01L21/762
Filed: 1980-02-26
Abstract: A monocrystalline Si substrate (S) of one conductivity type is covered with an epitaxial, monocrystalline Si layer (e) of opposite conductivity. Layer (e) is next partly covered with a silicon nitride mask (N) so a trench can be etched in layer (e). The surface of the trench is then covered by a thin oxide layer (01); and ions of a non-dopant are implanted to form a damaged zone in layer (01). The damaged zone is easily removed by etching, leaving the remainder of layer (01) which is used as a mask for doping to form a channel stopper zone (U). The trench is then filled with oxide (O). As compared with an earlier process (DE2438256), this process does not damage the crystal lattice in the Si adjacent to the trench.
Patent DE-3008326-A1 (DE)
Title: Profiled metal rod connection - has clamp section on horizontal guide, lowered by vertical guide
Inventor: LOTH HERMANN
IPC: E06B3/976
Filed: 1980-03-05
Abstract: The connection unit is for mitred profiled metal rods, to form frames, using an angled corner pushed into the rods. The unit consists of a housing with a contact surface for the rods, a stop for a mitre edge, a displaceable clamp section, which may be lowered below the surface, by a horizontal guide. Press tools with drives press rod wall sections into the corner elements. The horizontal guide may be lowered in the housing by a vertical guide, which is fastened to it at a point, occupied by the clamp section when tensioned. The vertical guide is located in a vertical housing end wall opposite to the stop.
Patent DE-3009257-A1 (DE)
Title: Tie rod and tensioner for lashing containers to ship deck - has spherical-shouldered bulges spaced along rod and matching-shape lug is provided on tensioner
Inventor: GLOYSTEIN JUERGEN
IPC: B63B25/24
Filed: 1980-03-11
Abstract: The equipment for lashing containers to ships' decks or suchlike is basically conventional. There is a tie-rod connected to the container at the top and, via a tensioning device, to a securing eye in the deck at the bottom. The lower portion of the tie-rod embodies several coupling facilities (18), which are spaced apart, in the form of bulges with spherical shoulders (19) for positively engaging a cupped lug (27) projecting from a fitting (26) in the tensioning device (16). The bulges are formed by working the rod material; pref. by hot upsetting. There may be several lugs (27,28), varying in shape to match differing tie-rod end configurations (18,19,29).
Patent DE-3015590-A1 (DE)
Title: Telescopic jib erection system for mobile crane - includes sequential extension of jib sections in accordance with load conditions
Inventor: EILER PETER DIPL ING DR
IPC: B66C23/70
Filed: 1980-04-23
Abstract: The method of erecting the telescopic jib for a crane, particularly a mobile crane uses a controlled system for erecting the sections so that only a required number of sections is extended, depending on the load. In a first stage, only the second section is advanced from the first section, taking the remaining sections with it, without extending them. In the next stage, the third section is extended, carrying the remaining sections with it. Alternative methods of erection include a method using partial extension of outer and lower sections first and another method with extension of inner and upper members first.
Patent DE-3024114-A1 (DE)
Title: High pressure cleaning machine nozzle changeover device - has nozzle bores to be changed over in wall of hollow body coupled to jet pipe
Inventor: SCHULZ WERNER ING GRAD
IPC: B05B1/16
Filed: 1980-06-27
Abstract: The changeover device allows a medium delivered by a jet pipe of a high-pressure cleaning machine to be sprayed out of different nozzles. It has a hollow body secured to the jet pipe outlet. This contains two or more outlets, forming valve seats, and a freely movable valve plug shutting off the outlet against whose seat it is pressed. The number of plugs is one less than the number of seats. The outlets from the one-piece hollow body (7) are formed by nozzle bores (14,15) in its wall. The body can be cylindrical, with a step (8) against which a connecting union nut (5) bears, securing it to the jet pipe (2). A seal (11) is pref. clamped between the mating end faces of the body and pipe.
Patent DE-3029638-A1 (DE)
Title: Caseinate-soluble casein having bacteriological pharmaceutical quality - prepd. by membrane filtration, concn. of solns. and washing out at higher temp.
Inventor: HAYER HELMUT DIPL ING
IPC: A23J1/20
Filed: 1980-08-05
Abstract: Caseinate-soluble natural casein is prepd. by concentrating casein, caseinate by membrane filtration of solns. contg. casein freed from whey- or serum proteins (albumins, globulins, etc.), lactose and salts, above 60 (65-75) deg.C. The conc. casein, caseinate soln. is also washed out above 60 (65-75) deg.C. The soluble casein reaches a bacteriological pharmaceutical quality.
Patent DE-3029773-A1 (DE)
Title: Heavy vehicle drive using electric machine with permanent magnets - has excitation magnetic poles of different permanent magnetic materials for obtaining high coercive forces
IPC: H02K21/00
Filed: 1980-08-06
Abstract: The tractive electric machines are of the external or internal pole type. The excitation magnet poles are made of different permanent magnetic materials. Thus mostly highly coercive materials are arranged and/or enriched, with defined properties on pole zones exposed to heavy demagnitising. For the remaining pole zones, exposed to lower or move demagnetising, materials of highly remanent components are preferably used. Thus, particularly in connection with soft magnetic shunt materials, a highest possible useful flux is attained but at quasi-stationary and dynamic loads, possibly with additional electric excitation and/or magnetic flux blocking. In addition, a considerable resistance to permanent demagnetising is obtained, particularly with heavy duty machines and/or overload conditions, while retaining the best possible spatial flux density distribution.
Patent DE-3030968-A1 (DE)
Title: High pressure pump for hydraulic systems - has rotor inclined to stator with vanes in hemispherical rotor recess
Inventor: WITJES FRITZ
IPC: F04C3/06
Filed: 1980-08-16
Abstract: The pump for hydraulic systems may use water as the working fluid It has a rotating component inclined at an angle to a stationary component. The rotating component has a hemispherical recess in its end facing the stationary component and the recess has four grooves in its curved base. A vane in the shape of a sector of a circle slides in each groove. Its outer corner presses on the face of the stationary component and the inclination of the rotating and stationary components results in working spaces being formed between them. The rubbing surfaces are minimal and can be adequately lubricated with water.
Patent DE-3039567-A1 (DE)
Title: Travelling wave shed loom weft propulsion device - uses staggered plates on a rotary shaft
Inventor: LILEEV VALERIAN PETROVIC
IPC: D03D47/26
Filed: 1980-10-20
Abstract: In a travelling wave shed loom, the weft is propelled by a rotary shaft supporting plates staggered in a spiral. The plates are offset in relation to each other and spaced at the same pitch as the dents in a fixed reed. There is a fixed reed with two rows of dents, and a rotary shaft supporting two sets of plates forming rotation reeds. The plates are disposed in a predetermined pitch and are offset in relation to each other to adopt a spiral line on the rotary shaft. The invention offers an improvement in fabric quality without complicating the appts.
Patent DE-3042317-A1 (DE)
Title: Water-based central heating system - has temp. sensitive switches controlling fans beneath radiators
Inventor: MOEHLENHOFF HELLMUTH
IPC: F24D19/10
Filed: 1980-11-10
Abstract: The central heating system has each of its radiators provided with a thermostat valve. Each valve has a temperature-sensitive setting device that operates an electrical switch that switches on a fan when the valve is opened and switches it off when the valve is closed. The fan is located beneath the radiator and conveys the heat into the room. The switch also operates an indicator. A delay circuit is located between the switch and the fan. The room is thus heated to the temp. set at the thermostat valve irrespective of the temp. set at the radiator.
Patent DE-3042593-A1 (DE)
Title: Telescopically extending drawer guide with rails - has interengaging projections and recesses locking drawer against complete removal until released
Inventor: POETTKER NORBERT
IPC: A47B88/14
Filed: 1980-11-12
Abstract: The drawer guide comprises two telescopically intersliding rails. The first rail which is to be connected to the carcase lies on the carcase or on support elements which are fixed to it so that it slides longitudinally. This rail can now be moved longitudinally to engage at the back beneath a projection which is firmly connected to the carcase whilst at the front it engages with a projection behind the projection on the carcase. The rail now remains locally fixed preventing complete extension of the drawer until required. To remove the drawer it is merely necessary to release the catch between the front projection of the drawer and the front proection of the rail.
Patent DE-3048383-A1 (DE)
Inventor: STRAIHAMMER REINHARD ING GRAD
IPC: A61C1/08
Filed: 1980-12-22
Abstract: 1. A dental hand-piece, characterised in that at least parts of its surface are provided with a carrier layer (11), into which grains (12) of a hardness greater than 2 000 HV are embedded with an adequate adhesion in such manner that a surface roughness is formed which corresponds to coarsenesses for abrasives on substrates in the region of 240 to 1 200, preferably to a coarseness of grain size 360, in accordance with DIN 69176 (edition 8/77), using an electro-corundum coarseness and silicon carbide coarseness, and in accordance with DIN 848 (edition 3/80) using a diamond coarseness.
Patent DE-3106720-A1 (DE)
Title: Lever mechanism as an aid in subcutaneous injections
Inventor: FALK REINHART
IPC: A61M5/00
Filed: 1981-02-24
Abstract: Published without abstract.
Patent DE-3109680-A1 (DE)
Title: Device for extracting trench sheeting plates, sheet piles or the like
Inventor: HESS WILHELM
IPC: E02D9/02
Filed: 1981-03-13
Abstract: To extract trench sheeting plates, sheet piles or the like, a device is proposed which has a stand (11) which can be set up next to a trench wall and to which a pulling arm (10) extending across the trench is linked in a vertically adjustable manner. Arranged on the swing-out end (13) of the pulling arm (10) is a coupling member (14) for connecting to a draw hook (15), in particular an excavator bucket, and arranged in the centre area of the pulling arm (10) is a connecting member (17) to which the carrying rope (6) connected to the sheeting element (1) to be extracted is fastened. <IMAGE>
Patent DE-3112729-A1 (DE)
Title: Means for protecting industrial plants from blast waves and projectiles
Inventor: HELD MANFRED DIPL PHYS DR
IPC: F42D5/045
Filed: 1981-03-31
Abstract: In the case of a means for protecting vessels and pipelines of industrial plants from blast waves and projectiles, said vessels and pipelines are provided with a liquid covering, in particular a water covering, to be precise in the form of hoses or other flexible receptacles which are filled with the liquid or water.
Patent DE-3117221-A1 (DE)
Inventor: BURGMEIER JUERGEN DIPL ING
IPC: H04L25/49
Filed: 1981-04-30
Abstract: 1. A method of converting digital input signals of a light waveguide transmission system from a first binary code comprising 32 different code words each comprising five binary digits corresponding to 32 possible amplitude values into output signals which occur in a second binary code comprising code values comprising six binary digits having a positive and a negative mode, where the mode corresponding to the continuous digital sum occurs at the end of the preceding code word comprising binary digits, wherein the 32 possible amplitude values (0...31) of the input signal are sub-divided into two equal sized sections each comprising 16 code words where the first section comprises the amplitudes values between a lowest amplitude value (0) and a first middle amplitude value (15) and the second section comprises the amplitude values between a second middle amplitude value (16) and a maximum amplitude value (31), wherein the code words for the positive mode of the output signal of the first section are selected to be such that the greatest possible conformity occurs between the input and output signals, and wherein for the lowest amplitude value of the second section the code word (49) for the positive mode corresponds to the inverted code word (14) of the negative mode of the highest amplitude value of the first section, and the code word (49) for the negative mode corresponds to the inverted code word (14) of the positive mode of the highest amplitude value of the first section, characterised in that for the second lowest amplitude value of the second section, the code word (57) for the positive mode corresponds to the inverted code word (6) of the negative mode of the second highest amplitude value of the first section, and the code word (17) for the negative mode corresponds to the inverted code word (46) of the positive mode of the second highest amplitude value of the first section, that the code words for the other amplitude values of the second section are formed correspondingly, and for the highest amplitude value of the second section, the code word for the positive mode corresponds to the inverted code word of the negative mode of the lowest amplitude value of the first section and the code word for the negative mode corresponds to the inverted code word of the positive mode of the lowest amplitude value of the first section, so that a diagonally inverted symmetry occurs between the two sections of the amplitude values of the input signal and the output signal.
Patent DE-3120622-A1 (DE)
Title: Logic analyser
Inventor: FRUEHAUF TONIO DIPL ING
IPC: G01R29/02
Filed: 1981-05-23
Abstract: In a logic analyser for representing the logic signals of digital circuits, the transgression of at least two different reference levels is in each case determined, stored and analysed.
Patent DE-3121114-A1 (DE)
Title: Component for the linearity of the line deflection in a television receiver
Inventor: POLLAK ALFRED
IPC: H04N3/237
Filed: 1981-05-27
Abstract: In a line deflection circuit for a television receiver, a so-called linearity coil (11) for adjusting the linearity and an amplitude coil (10) for adjusting the amplitude coil are necessary in the path of the line deflection current. According to the invention, the linearity coil (11) is additionally used for setting the picture width. For the purpose, an additional adjustable magnetically active part (19) is allocated to the coil former (15) of the linearity coil, by means of which part the inductance (L) of the coil (14) can be varied. <IMAGE>
Patent DE-3123976-A1 (DE)
Title: Control device for massaging devices
Inventor: ABONYI ISTVAN
IPC: A61H23/02
Filed: 1981-06-19
Abstract: Known massaging devices which are primarily used for the treatment of the human body only have a limited adjustability of the amplitude. For a demanding massage this is insufficient, however. For this reason, a control unit is proposed as an auxiliary unit for the known massaging devices which permits adjustment of the basic current constantly fed to the massaging device by means of a control element (P1), so that the massaging device is supplied with a modulated current which is superimposed on the basic current in parallel to the basic current and whose amplitude, pulse duration and off period can be adjusted independently of one another by means of control elements (P2, P3 and P4). The variability of the basic current and of the modulated current permits a wide variety of massaging possibilities, so that the range of applications of known massaging devices is considerably extended.
Patent DE-3127422-A1 (DE)
Title: Hydraulic vehicle-steering circuit
Inventor: WIMMER WALTER
IPC: B62D5/09
Filed: 1981-07-11
Abstract: Hydraulic vehicle-steering circuit having wheel-adjusting cylinders (13, 14) and having a pressure-medium pump (2), the volumetric flow of which can be changed and is set to a low value when the steering wheels are straight or are deflected to a small extent and is set to a higher value when the steering wheels are deflected to a greater extent. The low value is defined by a metering orifice (26) at which a defined pressure drop is observed at all times. When the steering wheels are deflected to a greater extent, a servo control valve (12) responds, via which the additional (greater) volumetric flow is channelled to the wheel-adjusting cylinders (13, 14). <IMAGE>
Patent DE-3128968-A1 (DE)
Title: Valve for a hot-water apparatus
Inventor: RUETH ANDREAS
IPC: F16K11/074
Filed: 1981-07-22
Abstract: In a valve for a hot-water apparatus, all the functions can be achieved by rotating a single operating handle. Use is made here of a ceramic disc control mechanism in which the control disc (3) is arranged eccentrically with respect to a fixed valve seat disc (2) and, with a single control hole (31), travels over and, when required, interconnects the axially parallel holes (24, 25) in the valve seat disc leading to and from the apparatus, an outlet hole (23) and a centrally arranged fresh-water inlet hole (22). An approximately concentric control hole (31) in the form of a segment of a circle with a segment angle greater than 90 DEG  is provided in the control disc (3), the size of this control hole (31) and the eccentricity with respect to the valve seat disc (2) being chosen such that, as the control disc (3) is rotated, it travels over the holes in the valve seat disc. <IMAGE>
Patent DE-3131191-A1 (DE)
Title: Method for igniting the charge of a reciprocating piston internal combustion engine and reciprocating piston internal combustion engine for performing this method
Inventor: MAY MICHAEL G DIPL ING
IPC: F02P19/02
Filed: 1981-08-06
Abstract: Method for igniting the charge in a combustion chamber of a reciprocating piston internal combustion engine having at least one cylinder. According to the invention ignition of the charges occurs at least in one operating range of the internal combustion engine by means of a glow plug having an electrical heating resistor and the temperature of this glow plug is sensed so that its heating current can be automatically adjusted as a function of the sensed glow plug temperature. <IMAGE>
Patent DE-3133061-A1 (DE)
Title: Angle (angular) resolver (angle-of-rotation transducer)
Inventor: IWASAKI SHINICHIRO
IPC: G01D5/20
Filed: 1981-08-21
Abstract: An angle resolver is specified, which has a housing, a concentric torque shaft supported rotatably by the housing, a permanent magnet fastened to the housing, and at least one soft magnetic part firmly mounted in the housing and carrying an electric coil. Mounted on the torque shaft is a ferromagnetic part, the angle of which can be adjusted above the upper ends of the permanent magnet and of the soft magnetic part without touching these. The angular adjustment of the ferromagnetic part causes changes with respect to the magnetic flux specified by the permanent magnet and acting on the soft magnetic part, which are measured. The soft magnetic part is preferably formed from an amorphous magnetic material. Various exemplary embodiments of the angle resolver are described.