baber/WOPTO huggingface dataset:
Patent DE-2923135-A1 (DE)
Title: Switching circuit for nonlinear transfer characteristic - has non-linear operational amplifier circuit for control of air flow in gas burner systems
Inventor: MUELLER ARNO ING GRAD
IPC: G06G7/26
Filed: 1979-06-05
Abstract: A control circuit is designed to generate a nonlinear transfer characteristic in the form of an output curve represented by interconnecting straight lines of predetermined slopes. The circuit is for use in control of the air flow for gas burners. The input (a) is processed by a feedback coupled pair of operational amplifiers (2,4) to generate the required output (b). Interconnections are made to operational amplifier stages (12,15) with a Zener diode (19) switching stage to provide the non-linear operating characteristic. The second operational amplifier stage has its output terminal connected through a diode (16) to a sensitivity control potentiometer (17).
Patent DE-2924333-A1 (DE)
Title: Mobile tennis court servicing machine - has varied appliances fitted to tractor supplying controlled movement
IPC: E01H1/08
Filed: 1979-06-15
Abstract: A self-propelled towing vehicle, and rollers, rakes, brooms or other appliances, are incorporated in a vehicle for maintenance work on squares and courts used for games, esp. tennis courts. The towing vehicle (1) is convertible to accommodate different maintenance operations, the appliances being connectable to it. It provides controlled movement for them. The appliances may be directly and detachably fitted to the vehicle via a swivelling holder (6), or - esp. in the case of a solid roller - coupled on as a towed unit. Suction tools and spreaders can also be towed units. The front wheel (4) of the vehicle may carry a laterally protruding rotating disc which presses the court lines down. This permits play soon after rainfall.
Patent DE-2926291-A1 (DE)
Title: Three limb core electromagnetic transducer - uses two laminations with one carrying central core and other both outer limbs
Inventor: GRAU ERICH
IPC: H01F3/14
Filed: 1979-06-29
Abstract: The core is typically for electromagnetic transducers, small transformers and chokes. Two lamination shapes (1,2) are used. The jointing regions are at the outer bottom corners of the two windows (3), and near the top of the central limb (5). The joints in the outer limbs are shaped to give an interlocking or locating fit (4). This assists in holding the core assembly together and also gives a positive location to control the dimension of the air gap (10) in the central limb. The plane of the jointing faces is not necessarily perpendicular to the core limb longitudinal axis. The outer limb joints can be angled up or down (7,9). The central limb joint may be oblique or curved (11,12). The length of the T-shaped lamination (2) central limb is typically between 50 and 85 per cent of the total core height (a,6).
Patent DE-2933142-A1 (DE)
Title: Antibacterial alpha-ureido penicillin derivs. - prepd. by reaction of a 1-amino-cycloalkane-carboxamido-penicillanic acid cpd. with e.g. a 4-hydroxy-5-pyrimidinyl isocyanate
Inventor: WETZEL BERND DIPL CHEM DR
IPC: C07D499/00
Filed: 1979-08-16
Abstract: New ureido-substd. penicillin derivs. are cpds. of formula (Ia) and their tautomers of formula (Ib) and, when E is H, their pharmacologically tolerable salts with organic and inorganic bases: n is 1 or 2; R is H, Me, Et, (substd.)cyclopropyl, -NH-Z-X (where Z is opt. branched 1-6C alkylene or 3-6C cycloalkylene; X is CN, OH, SH, -CO-N(R3)(R4), -CO-R3, -COOR4, -N(R3)(R4), -NH-COR3, -NH-CO-N(R3)(R4), -NH-CS-N(R3)(R4), -NH-SO2-R3, -OR3, -O-COR3, -SR3, -SOR3 or -SO2R3, (where R3 is 1-4C alkyl or phenyl; R4 is H or 1-4C alkyl, or N(R3)(R4) is 3- to 6-membered heteromonocyclic ring), -NH-(CH2)m-C6H2-(R5)(R6)(R7) (m is 0 or 1; R5, R6, R7 are H, halogen, Me, Et, i-Pr, NH2, NHMe, NMe2, NEt2, NEt2, morpholino, OH, OMe, OEt, NO2, acetamido, -SO2-Me, acetyl, -O-CO-Me, -COOMe, -COOH, -CONH2, -CO-NHMe, -CO-NMe2, CN, -SMe, -SOMe, -SO2-NH2 or CF3, at least one of R5-R7 being other than H), -NH-(CH2)m-Het, where Het is a heterocyclyl gp., and E is H or a protecting gp. which is readily cleaved off in vitro or in vivo. (I) are antibacterials useful in the prophylaxis and treatment of local and systemic infections in human and veterinary medicine. They can also be used as preservatives for inorganic and organic materials (including foodstuffs).
Patent DE-2940801-A1 (DE)
Title: Radiant heater with cylindrical combustion chamber - has cylindrical insert enclosed by shield for set angle
Inventor: SANDER WALTER
IPC: F24C3/04
Filed: 1979-10-09
Abstract: The radiant heater has a cylindrical combustion chamber with a burner at one end, and an insert accommodating the flame inside the chamber and of heat-resistant material, equipped with a radiation shield with apertures. An insulating air space is formed between the casing of the combustion chamber and the insert. The insert (24) is a cylindrical body, over which the shield (26) fits, enclosing it for a set angle. The shield can be of sheet- metal, out of which a number of similar ribs are pressed to form the apertures.
Patent DE-2951511-A1 (DE)
Title: Magnetic memory circuit for converter control - has input and output transistors controlled by clock pulse signals using pulse width control
Inventor: LINK KLAUS
IPC: H02M3/338
Filed: 1979-12-20
Abstract: The converter control system includes a magnetic memory with control signals applied to its transistors at a constant clock pulse frequency. A higher frequency is used for the clock pulse signals than the frequency of the generated output voltage. Pulse transformers are used to control the transistors. During each clock pulse period the control signal for the transistor which receives input energy is pulse width controlled and the control signal for the output transistor operates for a period which is a maximum of a half period required for its operation. Alternatively the control signal operates in a reverse manner so that during the time remaining at the end of a period, a signal is obtained to maintain a constant output from the memory to the input circuit.
Patent DE-3004302-A1 (DE)
Title: Hydraulic cylinder for single line hydraulic system - has reservoir for oil to ensure corrosion protection when system is not in use
Inventor: GIELNIK HARRY
IPC: F15B15/20
Filed: 1980-02-06
Abstract: The cylinder is for systems with integrated return spring action and two chamber fluid exchange system, esp. for agricultural, forestry and vehicle construction applications. It consists of a pneumatic spring with a spring cylinder (8) and piston rod (9) and a working cylinder with a cylinder tube (3), cylinder head (6), piston rod (7) and piston (11). Anti-corrosion oil in the oil reservoir (10) coats all cylinder sections, even when the cylinder is not in use, or has been mounted staggered by 180 deg. The reservoir is connected via two suction valves (20) and a suction pipe (19), to the overflow channels (5). A pump with control valves (25) presses the oil into the space between cylinder head and piston. Oil from the cylinder tube is returned via the outlet bore and valve needle to the reservoir, resulting in outward movement of the piston rod, due to the pressure produced by the pneumatic spring.
Patent DE-3004787-A1 (DE)
Title: Extrusion baking of bread - preceded by drying and/or roasting to reduce moisture content
Inventor: JOULIN GERARD
IPC: A21D17/00
Filed: 1980-02-06
Abstract: Conventional extrusion baking process is preceded by a drying and/or roasting operation for the material which has undergone the kneading, raising and baking stages. The drying and/or roasting operation has the purpose of reducing the moisture content in the material to be processed to bread from 35-38% to under 10%. The first stage is a conventional process of preparing the usual raw materials of flour, water and additives by kneading, dough raising and baking. Drying and/or roasting to reduce the moisture content to under 10% and fine grinding precede the extrusion baking. Fresh flour can be added before the last stage at a rate of 20-40%. The best results were achieved by keeping the conditions directly ahead of the extrusion nozzle at 125-145 deg.C and 160-200 bar. This turns the pale colour of extrusion baked bread into a golden brown and improves its aroma and pH value.
Patent DE-3006854-A1 (DE)
Title: Cooling system for power-station transformer - has two oil cooling loops with own temp. monitoring
Inventor: SANDEN RAINER ING GRAD
IPC: H02H5/06
Filed: 1980-02-23
Abstract: The cooling system has two oil cooling loops containing oil feed lines, oil outlet lines, a pump and a heat exchanger. Both cooling loops are connected together inside the transformer's container via common inlet and outlet channels such that the failure of one pump results in all the oil in the other cooling loop being distributed over the entire core of the transformer. Temp. detectors (14,15) in the cooling loops (2,3) monitor the temp. of the oil and cause a monitor to release a warning signal when the oil temp. exceeds a max. The two warning signals from the cooling loops are combined in an AND-gate to cause the release of a fault signal when the oil in both loops exceeds a max.
Patent DE-3013350-A1 (DE)
Title: Filtration furnace for sepg. pure zinc from zinc-iron alloy - for reclaiming zinc from sludge obtd. in zinc bath during hot galvanising
Inventor: SOBOTKA HANS
IPC: C22B9/02
Filed: 1980-04-05
Abstract: A furnace has a combustion chamber surrounding a refractory crucible. The base of the crucible is formed by a perforated plate covered by a refractory filter fabric and resting in a stack of rings forming a chamber collecting the pure, molten Zn passing through the filter. The base of the chamber has an outlet hole provides with a stopper plug mounted on lever arms, so the plug can close or open the outlet hole. The lever arms are pref. provided with a hand knob screwed into a bush to move the stopper plug. A workbasket is pref. used to place a solid mixt. of Zn and a Zn-Fe alloy in the crucible. During the hot galvanising of steel parts, a Zn-Fe alloy with m.pt. ca. 540 deg.C solidifies and collects in the base of the Zn bath, from which it is periodically removed.
Patent DE-3022495-A1 (DE)
Title: Sheepskin fleece stretching method - applying differential forces to axilla hollows and other parts for rectangular shape
Inventor: BOHNERT UWE
IPC: C14B1/26
Filed: 1980-06-14
Abstract: Tanned sheepskin fleece which is to be used as a cover for a motorcar seat is moistened with water on the flesh side and clamped to a stretching grid. The fleece is first stretched across the two front axilla hollows transversely to the desired width of 55 cm for a car seat. Differential forces are then applied to the other parts in a distribution which ensures that the resulting final shape will be rectangular. This saves having to sew pieces to the front and rear axilla hollows which is necessary with the conventional application of uniform stretching forces all round. Holes and tears can also be stitched together before stretching, thereby saving subsequent needle work for inserted pieces.
Patent DE-3022668-A1 (DE)
Title: Knee joint prosthesis has cranked link - articulated on tibia and engaging in femur component
Inventor: UNGETHUEM MICHAEL DR ING DR ME
IPC: A61F2/38
Filed: 1980-06-18
Abstract: Knee joint prosthesis has a cranked stabilising element, articulated in the region of point of action of the front cartilage about an axis transverse to the sagittal plane, and anchored in the tibia component; at the other end it is articulated to the femur component, esp. by a ball joint. Pref. the contact surfaces of the joint in the sagittal plane follow the natural curve in the femur portion, while in the tibia portion the curve follows the same pattern as the femur at the front but is flat towards the back. The femur sliding surface is pref. of polished metal integrally formed with the femur component, while the tibia sliding surface is of plastics, esp. polyethylene, fixed in the metal tibia component. The arrangement enables the natural movement of the knee to be simulated without utilising the cartilage apparatus and the prosthesis is subject to very little wear.
Patent DE-3026005-A1 (DE)
Title: Electrical multi-magnet reciprocating motor - employs controlled switching to give repulsion and attraction of electromagnets on piston and cylinder
Inventor: RIEMER WERNER
IPC: H02K53/00
Filed: 1980-07-07
Abstract: The machine is an electro-magnetic simulation of a reciprocating internal combustion engine, and is intended for driving a motor vehicle. Pistons and cylinders are typically arranged as in an horizontally opposed engine. Each piston carries a magnet coil at the end of its connecting rod. The end of each cylinder is enclosed by a second magnet coil. The cylinder coil excitation change over is controlled by an interruptor, the field strength may be controlled by a rheostat in the power supply. The excitation of the piston magnet can be controlled by contact with tracks in the cylinder bore. The piston is moved up and down by alternate attraction and repulsion of the magnets. The reciprocating motion is converted by a crank shaft into rotational motion in the conventional manner.
Patent DE-3031113-A1 (DE)
Title: Opening up mine face working area - involves retaining initially guided support units to secure long face entry zone
Inventor: BECKMANN KLAUS PROF DIPL ING D
IPC: E21D23/04
Filed: 1980-08-16
Abstract: An advancing forward-driving and conveyor assembly, and advancing striding support system to secure the roof in the working zone, are used in cutting an opening and setting up the face area for mineral extraction in underground mining. Support frames consists of support blocks, shield blocks or similar, led along close together in the area opened up. When the opening up is completed, the blocks remain as a long face support, which can advance in the direction of working to secure the face entry zone in the mineral extraction area. They may be turned through 90 deg. to face in this direction. Their forwarding devices may be separated from the driving and conveyor assembly, and connected to the long face conveyor.
Patent DE-3034747-A1 (DE)
Title: Homogeneous, extrudable, conductive mixt. - contg. polymer(s) and combination of low and large surface carbon black and/or other particles
Inventor: VOIGT UWE HERMANN DIPL CHEM DR
IPC: C08K3/04
Filed: 1980-09-15
Abstract: Extrudable, conductive mixt. contains thermoplastics, elastomers and/or thermoplastic elastomers and, as conductive component, a C black having specific surface 100-400 (150-350) sq. m./g, in combination with a further C black and/or other conductive particles having surface larger than 900 sq.m./g. The proportion of lower surface C black in the conductive particle combination is 5-30 times, w.r.t. wt.%, of the C black or other conductive component having the larger surface. The mixts. can be used as the internal and/or external conductive layer of an electrical medium or high voltage cable. The C black can be distributed homogeneously. The mixts. are free from specks leading to treeing when used as insulators.
Patent DE-3035015-A1 (DE)
Title: Coal carbonisation or gasification - in conical grate bar centrifuge moving fuel by gravity and centrifugal forces
Inventor: SOBEK FELIX PROF
IPC: C10J3/46
Filed: 1980-09-17
Abstract: In the carbonisation or gasification of coal, the fuel is charged on a reaction surface which revolves around a vertical axis. The force of gravity and the centrifugal forces move the fuel over the reaction surface. Gasifying agents are fed into the reaction space and fluid coal constituents are removed in fractions by centrifugal force. The better heat transfer and larger reaction surface between coal and gas result in a high gas yield and in a high reaction velocity. The fluid by-prods. require no subsequent separate treatment for their recovery. The process is not confined to any partic. size range of the fuel.
Patent DE-3036425-A1 (DE)
Title: Radiation-hardenable pressure-sensitive adhesive compsn. - contg. (meth)acrylate!-modified urethane!, natural resin tackifier, opt. unsaturated reactive diluent and opt. plasticiser
Inventor: ROWE WILLIAM
IPC: C09J7/38
Filed: 1980-09-26
Abstract: Radiation-hardenable pressure-sensitive adhesive mixt. contains (1) a water-insol. monomer mixt., (2) a tackifier, (3) a polymerisation inhibitor, (4) opt. a photo-initiator, (5) opt. a mono-unsaturated diluent, (6) opt. a poly-unsaturated diluent and (7) opt. a plasticiser. Monomer mixt. (1) is a solvent-free liq. contg. 0% free NCO gps. and consists of the reaction prod. of (1,1) 1 wt. equiv. intermediate prod. contg. 1 NCO gp. with (1,2) 1 wt. equiv. monomeric, olefinically unsatd. cpd. contg. exactly 1 active H atom. The intermediate is the reaction prod. of (1,1,1) 1 wt. equiv. organic, monomeric cpd. contg. more than 1 active H atom with (1,1,2) 2 wt. equivs. organic polyisocyanate. The pressure-sensitive adhesives are used in the prodn. of self-adhesive coatings and adhesive tapes. The mixt. can be hardened by radiation to a permanently adhesive condition having sufficient adhesion, and can be peeled cleanly off smooth surfaces.
Patent DE-3036959-A1 (DE)
Title: Quantitative inorganic analysis of element forming volatile halide - by extn. from sample with reagent forming this halide, for high sensitivity and accuracy
Inventor: KARPOV JURIJ ALEKSANDROVIC
IPC: G01N33/20
Filed: 1980-09-30
Abstract: Quantitative analysis of an inorganic chemical compsn. (I) is carried out by extn. of the element (II) to be determined from the sample in the gas phase and quantitative determn. of (II) in the gas phase. Extn. involves treating (I) with a reagent (III) forming a volatile halide with (II). For (I) contg. any of the above elements except F and Cl, the sample is treated as follows; (A) Dissolved in a molten metal bath and a (III) layer i.e. of nonvolatile metal halide, formed on the surface, (III) being Ni, Co, Cu or La fluoride or NaCl, whilst the melt consists of Ni, Cu or Pt and is melted in a crucible of material contg. F, per fluoro-phlogophite, which has been pretreated in a vacuum of 10 exp. -3 to 10 exp. -4 torr at a temp. 100-150 deg.C below the m.pt. of the crucible material. (B) Dissolved in a (III) melt, which is a complex alkali metal fluoride, pref. fluoroniobate, fluorotitanate and/or fluorotantalate, which can also contain 4-90% alkali metal chloride(s). (C) Mixed in crushed form with powdered (III), which is a nonvolatile metal halide, esp. Ni or Co fluoride or NaCl, and heated to 500-800 deg.C in a vacuum of 1 x 10 exp. -6 to 5 x 10 exp. -6 torr. If (I) contains F and/or Cl, the sample is dissolved in a metal melt contg. Si, pref. a melt of 9-15% Si, rest Cu, 4-12% Si, rest Au or 25-40% Si, rest Ni. A wide range of (II) specifically Al, As, B, C, Cr, Ge, Ga, Ir, Mo, Nb, Os, P, Pd, Re, Ru, Pb, Sb, Si, Sn, Ta, Te, Ti, U, V, W, Hg, Mn, F and Cl, can be determined with high sensitivity (detection limit 10 exp. -5 to 10 exp. -7%) and high accuracy (15-30% at concns. of 10 exp. -5 to 10 exp. -6%).
Patent DE-3037211-A1 (DE)
Title: Automobile engine used with automatic transmission - has brake switches and control logic allowing fuel to be fed to single cylinder group
Inventor: HETMANN RICHARD
IPC: F02D17/02
Filed: 1980-10-02
Abstract: The engine has at least two cylinder groups. The fuel supply for the latter is controlled in dependence on operation of the hand brake and/or the foot brake so that only one cylinder group is supplied during brake operation. Pref. the hand brake and the foot brake are coupled to respective control switches (1,3) coupled to a control logic (7) regulating the fuel supply for the first cylinder group. Each control switch is pref. associated with a respective control light (2,4) and the output of the control logic (7) is fed to a relay switch (11,12) for the current supply to the first cylinder group. The automatic transmission is present from being damaged during brake testing.
Patent DE-3041564-A1 (DE)
Inventor: EBNER KARL
IPC: B01D3/06
Filed: 1980-11-04
Abstract: The method for boiling down aqueous solutions which contain volatile components, especially for boiling down acidic spin bath solutions which contain hydrogen sulphide and/or carbon disulphide, involves, prior to boiling down, raising the temperature of the solution to be boiled down to a temperature which is above that required for boiling down, specifically to such a level that the solution, for the purpose of stripping off the volatile components, can first be depressurised and then, after depressurisation, can be boiled down at atmospheric pressure in an evaporator (1). The vapour drawn off from the flash vessel (35, 36) is condensed in a downstream heat-exchange evaporator (31) in which this condensation on the secondary side produces pure steam which is supplied to the vapour drawn off from the evaporator (1) after scrubbing and upstream or downstream of a vapour compressor (12) incorporated in the system, for the purpose of recycling energy. The evaporator (31) run by means of the expanded vapour is preferably fed, on the secondary side, with the condensate of the heating steam with which the fresh solution to be boiled down is heated up on the inlet side. <IMAGE>
Patent DE-3044197-A1 (DE)
Title: Bearing lubrication for piston machine - uses crescent shaped pocket in rotating shaft locating pedestal to provide pumped oil for forced lubrication
Inventor: ROHS ULRICH DIPL ING
IPC: F16N7/36
Filed: 1980-11-24
Abstract: A lubrication pump includes a rotating shaft (1) with a very fine surface finish. A bearing block (2) which supports the shaft, is provided with a crescent shaped pocket (3) that is axially sealed. The pocket is produced by different curvatures for shaft and pocket groove. Where the shaft enters the pocket, an oil suction hole (6), linked to a reservoir (8) in the pump housing (15), is provided. At the exit side of the pocket (3) the oil which is dragged along by the shaft is squeezed out through a slot (10) into a lubrication supply line.
Patent DE-3111311-A1 (DE)
Title: Method for sealing electromechanical components
Inventor: HINRICHS FRITZ
IPC: H01H9/04
Filed: 1981-03-23
Abstract: Electromechanical components, such as relays (1), are sealed by immersion in a fluid sealant (3), all the apertures (7) of the connecting pins as well as any other housing joints (8) being sealed at the same time. Before the component (1) is completely immersed, the connecting pins (5) can be sheathed with sealing means (16), it being possible to remove these sealing means (16) again after the immersion, for example pulling them off as a strip (16). <IMAGE>
Patent DE-3121379-A1 (DE)
Title: Suspension of a fuel element discharge tube of a nuclear reactor having spherical fuel elements on a penetration liner (tube)
Inventor: SCHOENING JOSEF DIPL ING DR
IPC: G21C1/07
Filed: 1981-05-29
Abstract: The invention relates to a suspension of a fuel element discharge tube of a nuclear reactor having spherical fuel elements on a penetration liner. The suspension of the fuel element discharge tube or sphere discharge tube is selected so as to enable readjustment which is necessary after assembly. The suspension of the sphere discharge tube can compensate movements, e.g. during an earthquake. The support is helium-resistant.
Patent DE-3122544-A1 (DE)
Title: Process and apparatus for etching through-holes in glass sheets
Inventor: WOLFF HANS-GEORG
IPC: G03F1/22
Filed: 1981-06-05
Abstract: A combined immersion/spraying process for the production, preferably, of X-ray masks, by glass etching using hydrofluoric acid. The etching section selected is to be removed completely evenly and without residues. According to the invention, the mask to be etched is immersed into an etching cassette in hydrofluoric acid, and the etching section is sprayed with hydrofluoric acid by means of a spray head. An opening in a side wall which corresponds to the area of the through-hole to be etched is provided in the etching cassette.