baber/WOPTO huggingface dataset:
Patent DE-3025521-A1 (DE)
Title: Flocculating agent feed to centrifuge - is automatically regulated from readings of mixt. feed and centrifuged liq.
Inventor: DIETRICH KLAUS DIPL PHYS
IPC: B01D21/00
Filed: 1980-07-05
Abstract: A method of regulating the addition of flocculating agent to a centrifuge in the separation of liquid-solid mixtures consists of measuring the flocculating agent feed (12) and comparing it with a set-point value. The set-point value for the flocculating agent requirement is obtained from readings (10,11) for the flow rate of the mixture and its solid content, and a reading (13) for the solid content of the liquid discharge (4) from the centrifuge (1). The control deviation between this set-point and the reading of the feed of flocculating agent (12) is then conventionally used for effecting an adjustment. This may be done by varying the mixture flow rate and/or by varying the feed of flocculating agent. The method provides a high degree of flexibility for different operating parameters resulting from varying properties of the material being centrifuged. Excessive overdosing or underdosing of flocculating agent are avoided.
Patent DE-3025859-A1 (DE)
Title: Coating of semiconductor substrate with metal - esp. where rear surface of silicon wafer is coated with gold and tempered to obtain collector contact for high frequency transistors
Inventor: MUELLER WOLFGANG DIPL PHYS DR
IPC: H01L21/285
Filed: 1980-07-08
Abstract: A layer (I) of metal is evaporated onto the rear surface of a semiconductor wafer, and is then tempered for1/2to 1 hour at 300-350 deg.C in an atmos. of hydrogen or a mixt. of H2 and inert gas. The wafer is pref. silicon, whereas layer (I) is pref. pure gold or doped gold. Layer (I) is esp. an underlayer of undoped gold covered by an outer layer of doped gold, and has a total thickness of 0.1-1.0 microns. The double gold layer pref. forms a collector contact, whereas the front surface of the wafer is pref. provided with Al emitter and base contacts for a transistor. Used as for the mfr. of high frequency transistors with extremely thin base and emitter zones. The double gold layer has a good ohmic contact with the Si wafer, and remains on the latter during subsequent scoring and breaking into chips. The h.f. transistors obtd. possess a high linearity of corrent amplification.
Patent DE-3033517-A1 (DE)
Title: Semiconductor memory with MISFET - has electrode on substrate surface over intermediate insulating film, in contact with end of similar second electrode
Inventor: SHIMIZU SHINJI
IPC: H01L27/06
Filed: 1980-09-05
Abstract: The semiconductor memory has a first electrode (4) on the substrate (1) surface over a thin insulating film (3), the substrate being of first conductivity. A second electrode (6) is provided on this surface over a second insulating film (3a) in such manner that one of its end contacts an end of the first electrode, or lies very near the same. Underneath the first electrode is formed a semiconductor region of second conductivity on the substrate surface. This region end is aligned with the end of the first electrode. A second semiconductor region (7) of second conductivity is formed on the substrate surface in a zone free from the second electrode, whose end is also aligned. The first electrode, the first semiconductor region and the first insulating film, surrounded by the first electrode and semiconductor region, form a capacitor (C) for signal storage. The two semiconductor regions and the second electrode form an IGFET, coupled to the capacitor assembly.
Patent DE-3038077-A1 (DE)
Title: Record player type glass lid hinge - has one side plate held between sections and in loops of other
Inventor: GOTOH AKIO
IPC: E05F1/12
Filed: 1980-10-08
Abstract: The hinge for opening and closing a lid is esp. usable as connector between a glass lid and a case, e.g. on a record player, or similar. Of two hinge plates (6,7) for lid anchorage, one (6) has side plate sections (6b) swivelling on a pivot pin (8). These sections have two anchoring eyes. A side piece on the other plate is held in the space between the sections. This plate is centrally anchored by the eyes, to prevent it from turning away. One plate, at least, is fitted with fixing screws (9), to fix the lid inserted in the anchoring unit. The glass lid can be adequately secured without making a hole in it.
Patent DE-3038126-A1 (DE)
Title: Methane-rich gases obtd. by catalytic steam gasification - of aromatics-rich liquids, esp. the residues of thermal hydrogenation
Inventor: TIMMINS CYRIL
IPC: C10G47/22
Filed: 1980-10-09
Abstract: Gases are obtd. by reacting 1 pt. of an aromatics-rich feedstock (max. end b.pt. 350 deg.C) with pref. 2.5-3.5 pts. steam at 450-600 deg.C, over a copptd. Ni-A12O3 catalyst as described in GB1525017, GB1550749 or JAP.45692/1979. The aromatics-rich feedstock, where the max. atomic ratio H: ring C is 2, may be obtd. by thermal hydrogenation of hydrocarbon oils. Also claimed are various integrated processes incorporating the above. E.g. natural gas or a precursor is made by hydrogenating a hydrocarbon oil, sepg. the prod. into a CH4-rich gas, H2, and a condensible part, obtg. from the latter an aromatics-rich feedstock, and gasifying this with steam as above. The catalytic steam gasification supplements non-catalytic hydrogenation and so increases the total yield of CH4-rich gas or SNG from an oil.
Patent DE-3038242-A1 (DE)
Inventor: FOERSTER HANS-JOACHIM DIPL CHE
IPC: C04B35/10
Filed: 1980-10-10
Abstract: 1. Process for producing powdered monoaluminium orthophosphate from an aqueous monoaluminium phosphate solution by evaporation of water, characterised in that a monoaluminium orthophosphate solution with a weight ratio of P2 O5 :Al2 O3 of not more than 4:1 is applied to a dry roller by means of at least one applicator roll and is dried, at a temperature of not more than 150 degrees C, initially to a residual moisture content of not more than 7% and not less than 2%, and the powdered monoaluminium orthophosphate formed is subsequently after-dried to a water content of less than 2% at a temperature below 150 degrees C.
Patent DE-3038706-A1 (DE)
Title: Fuel and air mixing for IC engine - has interlinked air and fuel regulators and uses inductive position transducer on engine vacuum air regulator to activate solenoid
Inventor: ABIDIN ANWAR DR ING
IPC: F02M9/127
Filed: 1980-10-14
Abstract: The fuel/air mixture for an ic engine is formed in a cylindrical chamber with multiple fuel entry holes round its periphery. An air regulator is positioned by engine vacuum, and the fuel drawn from the float bowl is regulated by a needle valve mechanically or electrically interconnected to the air regulator. A butterfly valve (3) couples engine vacuum to the mixing chamber (2) and through a hollow valve stem (16) to a vacuum actuator (40) which displaces the air regulator valve (10) against a return spring (19). A ferromagnetic slug (41) is attached to the top of the air regulator and moves through an inductive coil (42). An electronic circuit (44) detects the air regulator position from the coil inductance and uses this, with other engine data (51,52,53) to set a voltage which is applied to a solenoid valve (46) to position the fuel regulator needle valve (26).
Patent DE-3041754-A1 (DE)
Title: Evaporative heat exchanger assembly - has troughs delivering fluid to be vaporised above pipes containing medium
Inventor: FODOR DIPL-MASCH-ING
IPC: F28D5/02
Filed: 1980-11-05
Abstract: The evaporative heat exchanger transfers heat between a medium flowing in pipes and gas or vapour flowing along the outside of the pipes. It operates with the aid of a liq. vaporised as it is delivered onto the outside of the pipes. In order to distribute the liq. evenly over the surface of the pipes (5) a system of troughs (13) is mounted above them, the liq. being delivered to the troughs via profiled guide bodies (6') above and bearing against them. The troughs can be spaced apart for the same intervals as the pipes and parallel to them, there being lengthwise ribs under the troughs extending down to the pipes.
Patent DE-3042862-A1 (DE)
Title: Alumina prodn. from nepheline - by simultaneous grinding and drying with sinter waste gas, two-step sintering and hydro-chemical processing
Inventor: CHODOROV EVGENIJ I
IPC: C01F7/02
Filed: 1980-11-13
Abstract: In nepheline raw material processing to alumina, raw material grinding during charge mixt. prepn. takes place simultaneously with charge mixt. drying, using sinter-step waste gases. During sintering, the charge mixt. is heated to 900-950 deg.C in 1-3 min. while in suspension. The desilicising and causticising sludges, formed during the subsequent hydrochemical treatment of the sinter material, are returned to sinter-step. The process can be applied to nepheline contg. 20-30 wt. % alumina. Waste, with the exception of recycle material, is used in cement, soda and potash prodn. Fuel consumption during sintering is reduced, e.g. by 0.425 t/t alumina. Output is increased, e.g. 4 times. In first, low temp. quick sinter-step, decarbonising achieved can be 100%.
Patent DE-3044116-A1 (DE)
Inventor: WILLEMIN PAUL
IPC: B24B9/08
Filed: 1980-11-24
Abstract: For producing, for instance, a chamfer (36) on the pre-worked edge (26) of a glass (4) of a watch- casing, the glass is pressed against the end of the spindle (19) of the machine, by a lever (20), without paying attention specially to the fact the glass is perfectly centered on the spindle. The surface (26) of the glass (4) is used as a copying templet by maintaining this surface (26) applied against a rotatable disc (27) forming an abutting roller. The grinding-wheel (3) is displaced axially, and the front face of the disc (27) is provided with the recess (34) to receive the grinding-wheel (3) during the axial movement thereof. The lateral wall (35) of the recess (34) is frusto-conical so as to maintain to the disc (27) rigid. In another arrangement a groove is formed in the workpiece. <IMAGE>
Patent DE-3046191-A1 (DE)
Title: Fuel control system for IC engine - has solenoid valve shunting regulating valve in fuel inlet to carburettor
Inventor: OHGIYAMA MASATO
IPC: F02D33/00
Filed: 1980-12-08
Abstract: The fuel control system has an inlet pipe connecting the fuel tank to the carburettor. A solenoid valve and a regulating valve are in parallel with one another in the middle of the inlet pipe. An on/off switch and as witch operate the solenoid valve depending on the engine's inlet pressure. The regulating valve has a valve chamber with a tapering hole into which a tapering closure piece fits by degrees to control the flow of fuel through the hole. The advantage lies in better fuel regulation and in reducing fuel consumption.
Patent DE-3046999-A1 (DE)
Title: Copy roll feed for large photocopier - has supply and take=up rolls on same side of equipment for mechanical handling
Inventor: BARTEL SIEGFRIED DIPL ING
IPC: G03B27/58
Filed: 1980-12-13
Abstract: The heavy supply reel of photocopy material is mounted in a cassette and is fitted to the lower part of the copier simply by positioning the loading trolley and securing the couplings. The processed material is fed into a similar cassette mounted on the same side of the machine, above the first cassette so that the same handling system can be used. The copy feed inside the machine is taken upwards to the process height where guides feed the copy horizontally over the vertical optics. A return guide feeds the copy back to the take-up reel. The system is suitable for large throughput photocopiers as well as photographic printing machines.
Patent DE-3102302-A1 (DE)
Title: Modification of a process for operation of a heat pump installation connected to a combustion engine to a process for cooling
IPC: F24D11/02
Filed: 1981-01-24
Abstract: In a heat exchanger (6), heat is transmitted from a heat carrier circuit (7) to the environment, heat is supplied from a coolant circuit (3) to the heat carrier circuit (7) in a condenser (4a), heat is transmitted from a coolant circuit (8a-8e) to the coolant in an evaporator (5a), the coolant is compressed in a compressor (2) connected to the combustion engine (1) and conducted back into the evaporator (5a), waste heat of the combustion engine (1) is transmitted in an additional heat exchanger (14) to the heat carrier circuit (7) and the forward run temperature of the coolant circuit (8a-8e) to the consumer points (16) is regulated. For economical design of the operation of the combustion engine (1) with fluctuating cold requirement, coolant is conducted through a heat exchanger designed as a cold accumulator (10), with low cold requirement of the consumer points (16) the cold accumulator (10) is cooled and no or only a small quantity of cold is delivered from the cold accumulator (10) into the coolant circuit, after cooling the cold accumulator (10) to a predetermined temperature the combustion engine (1) is switched off and the forward run temperature of the coolant circuit (8a-8e) is adjusted by regulated delivery of quantities of cold from the cold accumulator (10) and after heating of the cold accumulator (10) to a predetermined temperature the combustion engine (1) is switched back on. <IMAGE>
Patent DE-3102619-A1 (DE)
Title: Pavement for road construction
Inventor: WENIGE ROLAND
IPC: E01C3/00
Filed: 1981-01-27
Abstract: The invention relates to a pavement for road construction having at least one base course, which is partly made up of graded refuse incineration slag and hydraulic binder. In order to achieve optimised compression strength and tensile strength with such a pavement, with simultaneously increased saving of cement as hydraulic binder, the refuse incineration slag has the following particle grading:     1 to 3 %, preferably 2 %, 16 to 32 mm   10 to 14 %, preferably 12 %, 8 to 16 mm   17 to 21 %, preferably 19 %, 4 to 8 mm   14 to 18 %, preferably 16 %, 2 to 4 mm   12 to 16 %, preferably 14 %, 1 to 2 mm   8 to 12 %, preferably 10 %, 0.5 to 1 mm   9 to 13 %, preferably 11 %, 0.25 to 0.5 mm   5 to 6 %, preferably 5.6 %, 0.123 to 0.25 mm   3 to 4 %, preferably 3.7 %, 0.05 to 0.125 mm   6 to 7 %, preferably 6.7 %, 0.05 mm   In addition, the refuse incineration slag, at a water content of 15 to 17 % by weight, preferably 16.5 % by weight, is mixed with 60 to 65 kp/m<3>, preferably 63 kp/m<3> cement.
Patent DE-3103058-A1 (DE)
Title: Appliance cabinet for electrical kitchen appliances and cabinet insert suitable for this purpose
Inventor: MICHAEL JOHANNES DIPL ING
IPC: A47B77/14
Filed: 1981-01-30
Abstract: The operationally connected accommodation of a plurality of electrical kitchen appliances has already been solved by an appliance cabinet in which a cable space suitable for accommodating the power cables of the kitchen appliances adjoins the appliance space for the kitchen appliances and is connected thereto by a slot, located on its rear side, for the passage of the power cables, and the sockets for the plugs of the power cables are arranged on the front wall and a boundary wall of the cable space, said boundary wall being flush with said front wall or offset relative thereto. In this case, it is necessary for the appliance cabinet to be designed specifically for this purpose. The invention is based on the object of making any desired kitchen cabinets suitable in a simple manner for the operationally connected accommodation of a plurality of electrical kitchen appliances. This is achieved according to the invention in that elements required for this purpose are combined to form a cabinet insert which can be removed from the appliance cabinet. This has the advantage that any desired kitchen cabinets can be made suitable in a simple manner for the operationally connected accommodation of electrical kitchen appliances.
Patent DE-3106773-A1 (DE)
Title: Method for regulating the energy supply in a water heater, in particular a heating boiler
Inventor: BOLZ GUENTHER ING GRAD
IPC: F24H9/00
Filed: 1981-02-24
Abstract: A method for regulating the energy supply in a water heater, in particular a heating boiler, is proposed, the heater being heated by an atmospheric gas burner or by a forced-air gas or oil burner. Each time the burner is switched on, the supply of fuel is limited for at least one minute, preferably at least three minutes, to a value which corresponds approximately to the starting power normally provided in two-stage burners, or is even smaller than this value. An excess air quantity is used which is higher than that when operating at normal rating, as a result of which the dew point limit of the combustion gases is reduced and the risk of formation of condensate and corrosion products on the heat exchange surfaces of the water heater is diminished.
Patent DE-3107125-A1 (DE)
Title: Device for the automatic feed of polishing wax for polishing machines
Inventor: SIEKMANN EWALD
IPC: B24B57/04
Filed: 1981-02-26
Abstract: Device for the automatic feed of polishing wax for polishing machines for polishing the surface of slab-shaped or panel-shaped objects consisting of metal, plastic or other materials. The polishing wax panel is held in the polishing machine, above the polishing roll, between in each case a plurality of mutually parallel rolls which are arranged in separate vertical planes and grip the polishing wax panel from opposite sides.
Patent DE-3110304-A1 (DE)
Title: Unitised unit, in particular substation which is at the risk of explosion
Inventor: KRAEMER KARL HEINRICH
IPC: E04H5/04
Filed: 1981-03-17
Abstract: In the case of unitised units which are at the risk of explosion, precautions have to be taken so that, in the event of an explosion, people in the vicinity of the substation are not endangered by the pressure surge issuing therefrom and the hot gases which accompany said pressure surge. If the units which are at risk of explosion are set up on a false floor in the unitised unit and are partitioned off in a pressure-resistant manner at the top, then the pressure surge is first of all channelled through a through-passage in the false floor, into the area between the false floor and the foundation, and from there to pressure-relieving openings in the exterior walls of the unitised unit. The false floor (16) has at least one further through-passage (20) which is arranged such that the entire path of the pressure surge from the first-mentioned through-passage (19) via the further through-passage (20) to the pressure-relieving openings (15) is as long as possible. <IMAGE>
Patent DE-3110926-A1 (DE)
Title: Induction generator for scanning vibrations
Inventor: SIROKORAD JURIJ DIPL ING
IPC: G01H11/02
Filed: 1981-03-20
Abstract: A simple, compact, easy-to-screen, but also robust induction generator of high sensitivity for scanning vibrations is provided by the invention when in the common base region of the poles, orientated in the same sense, of fixed magnets frontally arranged in a sleeve there is arranged an axially movable permanent magnet with contrary pole orientation through whose cavity there extends freely a carrier which is anchored with both its ends in the end faces by means of the specified fixed magnets, at least one of the induction coils being wound onto said carrier. The fixed magnets are annular. The ratio of the thickness of the sleeve to the outer diameter of the movable permanent magnet is in the range from 0.01 to 1.0. The abovementioned induction generator has far smaller dimensions than previous induction generators, and can withstand substantial accelerations and vibration amplitudes.
Patent DE-3111090-A1 (DE)
Title: Rotary drilling rig
Inventor: WIPPIG WERNER
IPC: E21B27/00
Filed: 1981-03-20
Abstract: Rotary drilling rig with a mobile drilling excavator with extendable boom and a drilling implement arranged on a winch rope or a kelly bar and having a hydraulic drive for the drilling implement. An essentially perpendicularly displaceable bracing device, which has bearing plates laterally displaceable by hydraulic cylinders, and also a hydraulic feed device for the drilling tool are arranged between the winch rope or the kelly bar and the drilling tool. Furthermore, a drilling bucket fitted with roller drilling bits and having a built-in pump device can be used as the drilling implement.
Patent DE-3113762-A1 (DE)
Title: Spray gun
Inventor: ALFRED DAVID S
IPC: B05B13/00
Filed: 1981-04-04
Abstract: The present invention describes a spray gun for discharge of pressurised spray material by means of a spray can. The spray gun possesses a housing through which a flexible line passes. The flexible line is connected to a supply of spray material which is held under pressure. A spray nozzle is fastened to the line for distributing the spray material in a given pattern. The throughflow of pressurised spray material through the flexible line is effectively controlled by a pivot lever which is usually pressed into contact with the flexible line by a spring and can be pivoted to an inactive position to permit the flow of the spray material through the flexible line. The pivoting of the lever may be carried out by means of a fluid motor.
Patent DE-3119275-A1 (DE)
Title: Method of recording digital information on a recording medium provided with sections free from recording
Inventor: MAEGAWA TOSHIYUKI
IPC: G11B20/10
Filed: 1981-05-14
Abstract: By the method according to the invention, the recording of digital information on a recording carrier takes place directly after a toneless interval, and at the beginning of the digital information a signal tone at a fixed level is recorded on the recording carrier. A toneless interval is preferably inserted between the signal tone at a fixed level and the beginning of the digital information.
Patent DE-3123686-A1 (DE)
Inventor: SCHOEN MANFRED ING GRAD
IPC: F24D19/10
Filed: 1981-06-15
Abstract: 1. High-pressure monitoring method for operating a heat pump (W) in the framework of an at least bivalent heating plant, wherein, in addition to the heat pump (W), at least one additional heat source, preferably a heating boiler (K) is provided which serves to heat the heat carrier which flows through the radiators (H) and which can be input-coupled into the heating cycle via a controlled mixing valve (V) under the control of a regulating device (R), wherein, when a temperature threshold value of the heat carrier endangering the heat pump (W) is exceeded by a sensor, a disconnect signal (HD signal) for the heat pump is emitted and the latter is enabled again following a constant delay time which is followed by a fixed monitoring time during which a fault message resulting in renewed disconnection of the heat pump is given if a new disconnection occurs during its duration, characterised in that the heat pump (W) is enabled only following the expiration of the constant delay time as sole criterion only when the additional heat source (K) was not in operation at the time of the occurrence of the disconnect signal, that on the other hand when the additional heat source (K) which serves to heat the heat carrier was additionally in operation, the heat pump (W) is enabled only when the constant delay time has expired and the temperature of the heat carrier has fallen below the temperature threshold value.