baber/WOPTO huggingface dataset:
Patent DE-4002348-A1 (DE)
Title: Metal soldering - uses evaporation of a surface for cleaning, and surface tension reduction using vapour pressure and heat
Inventor: ZIMMER GERO
IPC: B23K1/20
Filed: 1990-01-30
Abstract: To execute a soldered joint, the metal surface of one, or both materials to be soldered are partially vaporised to clear them of dirt and oxidisation and reduce the surface tension. Vapour pressure is used to raise the material temp. and affect the vaporisation effect of the first material. The vapour pressure is developed in a small volume by the evaporation of the first material, or an external vapour pressure is applied to the first material together with heat and also other criteria such as the melting of one or more of the parts being handled, or the achievement of a given temp. profile or a given temp.. The heat source is used to direct the changes in at least one of the parts, such as the thermal expansion or the transition between the solid material into a fluid condition at one of the materials or parts. The first material can contain an additive which forms a protective layer during and/or after the thermal effects. The second material can be mixed with the first as a dispersion or a coating for a hot melt process. The second material remains on at least one of the parts after the thermal action, and it incorporates at least part of the first material or its vapour condition even after the end of the thermal action. The second material can be an additional bonding to one of the thermally-handled parts and alters the thermal conductivity. The thermal action is applied through keying to a thermal energy source for treatment through a temp. profile. ADVANTAGE - The method allows the workpiece surfaces to be treated which, under normal atmospheric pressure, would not vaporise sufficiently for cleaning before soldering.
Patent DE-4005212-A1 (DE)
Title: Radiation-sensitive mixt. for prodn. of photoresist - contains alkali-soluble binder, onium salt of strong acid and 2,2-di:substd. benz-1,3-dioxolane as solubility inhibitor
Inventor: NGUYEN KIM SON DR
IPC: G03F7/004
Filed: 1990-02-20
Abstract: Radiation-sensitive mixt. (I) comprises mainly (a) a binder or binder mixt. which is insol. in water but soluble in aq. alkali (b) a cpd. which forms a strong acid when irradiated and (c) cpds. which inhibit the solubility of (a) in aq. alkali (c) is a cpd. of formula (II) In the formula R1, R2 = H, alkyl, alkoxy, aryl or aralkyl; R3, R4 = alkyl, cycloalkyl, aralkyl, opt. alkyl-or Hal-substd. aryl, or a gp. of ofmrula -(CH2)n-CO-R5 (with n = 1-5; R5 = alkyl, alkoxy, aryl or aralkyl); or R3 + R4 = -(CH2)m-(with m = 4-6) i.e. forming a 5- to 7-membered ring. Pref. (a) is a phenolic resin pref. a novolak with Mn 300-20,000 or poly(p-hydroxy-styrene) poly(p-hydroxy-alpha methylstyrene) or a copolymer of Mn 200-200,000 obtd. by copolymerisation of p-hydroxystyrene with p-tert. butoxycarbonylstyrene, alkoxystyrene or 2-tetrahydropyranylstyrene; amt. of (a) is 50-95 wt. % (w.r.t (a) + (b) +(c) = 100 wt. %; (b) is an onium salt of formula RaRbRcS(+)X(-) or RaRb(+)X(-) (with Ra-Rc = alkyl, aryl, aralkyl or a gp. of formula (III) (with Rd-Rf = H, OH, Hal, alkyl or alkoxy; X = AsF6, SbF6, PF6, BF4, Cl04 amt. of (b) is 1-20 wt. % and amt. of (c) is 1-49 wt. % (I) also contains a sensitiser which absorbs radiation and transfers it to (b) and pref. also up to 1 wt. % coupling agent, surfactant or pigment.
Patent DE-4005479-A1 (DE)
Title: Mountaineering orthopaedic boot - has relief pattern in sole and heel with inner structure combining hard leather with e.g. polyurethane foam
IPC: A43B5/00
Filed: 1990-02-21
Abstract: Boot, and partic. for mountaineering or hiking, has a sole with a relief pattern and a heel and front end; its leg surrounds the foot and is attached to in and outer-soles. Its overall design minimises stresses on the human foot. The inner structure pref. uses leather on the top and polyurethane foam or ethylene-vinyl acetate copolymers on the underside; the heel pref. has PVC supporting sole. Pref. example shown has the patterned relief in the outer sole (12) with a hard outsole (13) for a firm grip on rough ground. It (12) has a front end (14) to take the toe stresses etc., this is thinner than the heel (16). The intermediate part (18) is not patterned. The outer sole (12) comprises outsole (13) and the partial rubber sole (20) which comprises honeycomb promation webs (22); these are as stable as solid material but save wt. The outer sole (12) is attached to the insole (24) and also to the heel cap (26) of the leg (28). Both this cap (26) and the leg (28) are made of hard leather. A sealing rim (30) is cured on between the partial rubber sole (20) and heel cap (26) to exclude moisture. ADVANTAGE - Boots have good orthopaedic properties.
Patent DE-4011796-A1 (DE)
Title: Paper-making blanket floating roller - has sliding bearing to move at right angles to plane of blanket travel
Inventor: SCHIEL CHRISTIAN
IPC: D21F3/04
Filed: 1990-04-12
Abstract: The floating roller, to carry a continuous blanket in a papermaking machine, has a sliding bearing with a direction of sliding movement generally at right angles to the plane, of the blanket moving towards the floating roller. The changing width of the blanket is prefm measured and, on reaching a min. width value, a switch signal is generated to reverse the angular change of the floating roller axis. A limit switch is used to measure the blanket width and its position determines the min. permitted width, and is adjustable across the direction of travel so that its current position is determined from the max. blanket width setting. ADVANTAGE - The assembly requires less tensioning and normalising of the blanket, so that less attention is needed for the blanket running.
Patent DE-4013159-A1 (DE)
Inventor: ROTHFUSS GEORG DIPL ING
IPC: B60T8/36
Filed: 1990-04-25
Abstract: Proposed is a housing block consisting of individual plates which act as supports for hydraulic elements such as solenoid valves, resersoirs, shock absorbers and pumps. The housing block is intended for use in vehicle brake systems fitted with an anti-blocking system and/or an anti-slip system and has, for all types of anti-blocking system, the same basic construction and the same boring pattern.
Patent DE-4015276-A1 (DE)
Title: Wear-resistant ring traveller for spinning machines - has 2-layer coating obtd. by chemical surface treatment and application of epoxy] resin contg. molybdenum di:sulphide and graphite
Inventor: KIBE SHIGERU
IPC: D01H7/60
Filed: 1990-05-12
Abstract: Ring traveller (I) for spinning machines has a multilayer film structure consisting of a base layer (2) of a film produced by a chemical conversion process and a layer of epoxy resin (3) contg. MoS2 and graphite, which is applied at least to the inside surface ofthe metallic base material of (I) which is in sliding contact with a ring. Multilayer film is pref. 2.0-9.0 microns thick and has surface roughness 1.0-8.0 microns (tenpoint height) layer (2) is 1.0-2.0 microns thick and (3) is 1.0-7.0 microns thick. USE/ADVANTAGE - (I) is useful for fine spinning machines, combined spinning and twisting machines, etc. The invention provides a low-friction coating for (I) which enables stable operation for long periods at high spinning rates without undue wear on the traveller.
Patent DE-4015860-A1 (DE)
Title: D=A converter for microcomputer - supplies several, different points of digital signal representing pulse width modulated signals to adder
Inventor: MAERZ UWE
IPC: H03M1/82
Filed: 1990-05-17
Abstract: Several, different binary points of a digital signal are represented by pulse width modulated signals, corresp. to the value of the binary points, and are fed to an adder (15-18) with different weighting. To the adder output is coupled a circuit (19,20) generating a mean value. The adder pref. has two inputs for a pulse width modulated signal via a voltage divider. The pulse width modulated signals may be supplied prior to weighting via limiter circuits (13.14) with a widely identical limiting level. The adder is typically formed by a push-pull operational amplifier (17), to whose inverting input the pulse width modulated signals are supplied each via a resistor. USE/ADVANTAGE - For microcomputers, with improved velocity and/or amplitude resolution.
Patent DE-4018877-A1 (DE)
Title: Stainless-steel blasting method - uses millimetre-size pellets of high-grade steel or glass
Inventor: GRIMBERG HANS
IPC: E05B17/00
Filed: 1990-06-13
Abstract: The blasting method is for surface-treatment of stainless-steel pipes, handles etc. It is esp. for handles coming into contact with water or forming grips. The exposed surfaces (42, 44) are blasted with pellets of high-grade steel or glass, and of dia. less than 1 mm. and pref. less than 0.1 mm. They can be accelerated by compressed air at 5 to 15 bar pressure. USE/ADVANTAGE - Fingerprints, water droplets or specks of calcium are no longer visible on surface of stainless steel pipes and handles.
Patent DE-4021082-A1 (DE)
Title: Skin care product with high lipid content - contains a bi:layer source, salts of organic acids, alcohol, stabiliser and lipid(s)
Inventor: LAUTENSCHLAEGER HANS DR
IPC: A61K8/36
Filed: 1990-07-03
Abstract: A skin treatment agent contains a bilayer source, salts of organic acids, alcohol, stabiliser and lipids. USE/ADVANTAGE - The skin treatment agent has a high lipid content and can be used in cosmetics and dermatology. The agent does not have the problems associated with previous similar liposome prepns. (e.g. irritation due to high emulisifer concns. removal from the skin on washing). The bilayer is capable of building up the damaged lipid double layers in the epidermis and includes lipids in these layers, which are normally present in the epidermis. Thus skin quality (e.g. moisture, softness, reduction of transdermal water loss, improvement in the depot effect of the epidermis for dermatological active ingredients) is improved.
Patent DE-4023724-A1 (DE)
Title: Radial-flow fan with radial impeller - has inlet nozzle with arcuated contour shifted radially inwards for specified tangent inclination
Inventor: HEINRICH KLAUS
IPC: F04D29/42
Filed: 1990-07-26
Abstract: The contour of the inlet of a radial-flow fan nozzle (1) is so radially inwards displaced that the tangent at the impeller side end is inclined w.r.t. the impeller axis at an angle of 40 to 75 deg. - The inclination of the conical part of the cover disc (4) has a similar, or slightly larger, angle w.r.t. the impeller axis, and the inlet nozzle has a ratio of 1/4 to 1/5, related to arcuated height (h) and its chord (s).
Patent DE-4023741-A1 (DE)
Title: Aliphatic, cycloaliphatic and aromatic glycidyl ether cpds. prodn. - by epoxidising allyl ether cpd. with di:oxirane opt. formed in-situ, giving pure prod.
Inventor: ADAM WALDEMAR PROF
IPC: C07D321/00
Filed: 1990-07-26
Abstract: Prodn. of (cycl)alphatic or aromatic glycidyl ethers (I) is carried out by epoxidation of the corresp. allyl ethers of the formula A-(OCH2-CH=CH2)n (II) (where A = an organic substrate with one or more (cyclo)aliphatic or aromatic segments contg. the allyloxy gps.; n = 1 or more). The novel features are that (a) the epoxidising agent is a dioxiran of the formula (III) (where R1-2 independently = 1-4 C n-alkyl or 1-4 C perfluoroalkyl; or R1R2 = a tetra-, penta- or hexamethylene gp.); (b) epoxidation is carried out -20 to +50 deg. C in an organic or organic-aq. solvent (mixt.), which is stable towards (III), using more than 1, (pref. 2-5) mole preformed (III)/allyl ether gp. or a corresp. amt. of (III) formed in situ; (c) in-situ formation of (III) is carried out in the presence of water by adding a peroxomonosulphate to a reaction mixt. kept at pH 6-9, which contains to (II) and a ketone of the formula R1-CO-R2 (IV); and (d) (I) is isolated from the organic phase of the reaction mixt. in the usual way when epoxidation is complete.
Patent DE-4025565-A1 (DE)
Title: Controlled IC exhaust gas buffer and recycle system - improving cold start=up efficiency of catalytic converters using an engine management device
Inventor: GIBTNER SIEGFRIED DIPL ING
IPC: F02M26/37
Filed: 1990-08-11
Abstract: Purification of IC engine exhaust gases, provided with controlled buffer storage for gases during initial cold start-up. IC piston engine (10), with inlet manifold (12), butterfly throttle (14), and exhaust manifold (16) discharging into exhaust pipe (18) is provided with 3-way catalytic converter (20). A lambda probe (oxygen analyser) (22) is fitted into exhaust pipe (18), and provides a control signal to the fuel/air proportioning unit. Downstream of (22) the exhaust pipe branches (26) to a buffer vessel(28); the junction is fitted with an electro-magnetic actuated flap valve (30), above to close off either the buffer or exhaust discharge to the catalyst chamber. Buffer vessel (28) also connects into the inlet manifold (12). Buffer inlet line (26) includes a pump (34) and a non-return valve (36); a further non-return valve (38) is fitted between buffer vessel (28) and inlet manifold (12). The catalyst (20) and probe (22) each have electric resistance heaters; buffer vessel (28) has a pressure sensor (50). On completion of the ignition circuit, controller (40) decides if cold-start conditions apply (e.g. engine below 20 deg C), and if so, energises pump (34), and the resistance heaters, and closes the exhaust line via valve (30). In this way exhaust gates are contained for a few seconds, until a pre set pressure is attained, and then recycled to the engine inlet manifold. The now hot exhaust gases can be diverted to the catalyst chamber (20) at a temp. allowing effective oxidn..
Patent DE-4037820-A1 (DE)
Title: Feeding and drinking system for honey bees - comprises perforated cover with slot for liq. bucket trough, and includes perforated revolving section
Inventor: ILG LEOPLD
IPC: A01K53/00
Filed: 1990-11-28
Abstract: A feeding and drinking system for honey bees and similar consists of a perforated cover to a feed vessel, and with a slot for liquid according to current need in a bucket trough container. The slot on the cover (4) as the second layer (1) is in a separate sequence with a circular recess (11) for half the circumference (16), and a half penetration (12). A separate group (18) of holes (19) in the same section swings at certain angles about the central axis (5), and an adjustable group of holes is set out on a selective section with the help of a mark (31), and between their ends the holes (16) have outlets to suit the viscosity or capillary action and produce drops which the bees can catch. USE/ADVANTAGE - Loss or taking by other insects is prevented.
Patent DE-4101864-A1 (DE)
Title: Weight equaliser for insulating vibrations - includes extra springs beneath mass and uses kinematic multi-reversal
Inventor: GERLACH RAINER DR ING
IPC: F16F15/02
Filed: 1991-01-23
Abstract: The vibration insulating weight equaliser is used repeatedly in kinematic reversal and in parallel connection, whereby a vertical weight compensation is possible which, together with the degrees of freedom of the foundation bearings of the system, allows a weight compensation in three-dimensional sense. The vibration behaviour of the mass (m) can be designed in any form by applying additional springs beneath the mass which can be dimensined independently of the weight of the mass. ADVANTAGE - Independent spring mounting and engagement.
Patent DE-4101955-A1 (DE)
Title: Mixer valve with movable control disc - has water outlet opening with pipe and controlled by mixer
Inventor: LORCH WERNER
IPC: F16K11/00
Filed: 1991-01-24
Abstract: The sanitary fitting has a mixer valve with a fixed distributor disc (10) with inlet openings (21) for the cold and hot water. The disc (10) also has a third opening acting as an outlet opening (23) so that water passing out of the inlet openings (21) through the control face passes to a second outlet. The control of the mixer valve caused by moving the control disc (11) acts on both outlets. One outlet can have a throttle operating independently of the mixer valve. ADVANTAGE - The mixer valve is compact whilst allowing the control of a second outlet.
Patent DE-4103876-A1 (DE)
Title: Fixing granular bone prosthesis material - with aq. soln. of gelation agent gelling in presence of calcium ions and aq. soln. of calcium cpd.
Inventor: SUMITA MASAYA
IPC: A61F2/00
Filed: 1991-02-08
Abstract: A granular bone prosthesis is fixed by treating the bone prosthesis material with an aq. soln. of a gelation agent which can gel in presence of Ca ions, and an aq. soln. of a Ca cpd.  Pref. the prosthesis material is a Ca phosphate ceramic grain. The gelling agent is a low-methoxylated pectin, an alginate, carrageen, gellan gum or furcellaran. The Ca cpd. is the lactate, gluconate or acetate, or CaCl2, Ca(OH)2, CaO, CaCO3, Ca(NO3)2 or CaSO4. ADVANTAGE - Any bone prosthesis can be used, and can be attached to the damaged bone without spreading or loss after filling.
Patent DE-4104087-A1 (DE)
Title: Electronic wire tension regulator for coil winding device - has successive tensioning braking and dynamic regulation stages
Inventor: MANKOWSKI DIRK
IPC: H01F41/094
Filed: 1991-02-11
Abstract: The tension regulator for a coil winding device ensures a constant wire tension for all phases of the winding process. The wire fed off from a supply reel (1) is passed through a wire pulling device (4...6) and a wire tensioning device (7...9), followed by a braking device (10...13) and a dynamic regulator (14...19). The tensioning device (7...9) uses a deflection roller (9) acted on by a spring lever system (7,8) for providing a constant tension, the braking device (10...13) using a second deflection roller (12) coupled to an electric motor (10). The dynamic regulator uses a freely movable roller (16) supported between 2 springs and magnets (14,15). USE - For winding round or rectangular coil.
Patent DE-4112980-A1 (DE)
Title: Energy saving heating system - can utilise heat from solar panels or from conventional heater
Inventor: FABRITZ GERHARD
IPC: F24D11/00
Filed: 1991-04-20
Abstract: The energy-saving heating system has a hot water storage tank (3) which is enclosed in a heat exchanger (1) formed by a helical coil of pipe (12,13). This is connected to a solar panel on the roof of the building in which the system is installed. This heat exchanger (1) has a second helical coil which is connected to a heater (4) by pipes (2,2'). These pipes (2,2') pass through the heater (4) and are connected to an underfloor heating system (2",2"'). A pump (16) circulates water through the system and a valve (5) cuts out the heat exchanger (1) when solar heat is not available and heat is supplied only from the heater (4). A separate pipe (3',3") supplies domestic hot water. USE - Heating installation using solar energy.
Patent DE-4124358-A1 (DE)
Title: Single or multiple row hoeing and weeding machine - is equipped with grubbing shares and gyroscopic tools mounted on rectangular frame supported on mobile transverse beam chassis
Inventor: HOFMANN HANS
IPC: A01B39/08
Filed: 1991-07-23
Abstract: A single or multiple row hoeing and weeding machine consists of a tubular transverse frame with upper and lower coupling rods (8, 9) supported on wheels (7). A series of link rods forming a rectangle (10-12) are coupled to a box shaped carriage (2) which can slide along the cross beam (1) or be fixed in any position. A pair of gyroscopic tools (20) revolve on inclined (18a) axles connected to the outer coupling rod (12). At the forward end of the frame (10-12) vertical members (27, 35) fixed to the front of the carriage (2) support grubbing shares (26, 34).
Patent DE-4127073-A1 (DE)
Title: Hermetic sealing arrangement for shaft passing from a reaction vessel to the outside - has 2 sealing surfaces incorporating throttle regulating hydraulic sealant circuit, hydraulic sealant is inert and forms stable cushion barrier
Inventor: BERTSCH ERICH
IPC: B01F15/00
Filed: 1991-08-16
Abstract: A hermetic sealing arrangement for a shaft passing from a reaction vessel to the outside, has a disc seal surface turning with the shaft against a fixed surface with hydraulic seal, whereby the hydraulic pressure between the two surfaces may be regulated. The two sealing surfaces incorporate a throttle regulating the hydraulic sealant circuit, the hydraulic sealant is inert with respect to the substance being processed; and the hydraulic sealant forms a stable cushion barrier between the surfaces to be sealed and the process chamber. USE/ADVANTAGE - The arrangement seals a chemical reaction process vessel against the atmosphere irrespective of relative pressure and extends the life of the seals.
Patent DE-4127387-A1 (DE)
Title: Folding roof for motor vehicles -  has removable fasteners to connect inside roof lining to hoops
Inventor: HITOSHI AONO
IPC: B60J7/06
Filed: 1991-08-19
Abstract: The folding roof has cover (20) for an opening in a solid roof skin, and an inside roof lining (41) to open/close an inner opening. Several hoops (28,29) engage with both sides of cover and lining, to tension and to support folding of both in longitudinal direction. The inside lining is connected to the assembled hoops via removeable fasteners (66). These can be released from below.  Each fastener has fork (67), which is in releasable snap connection with the hoops. ADVANTAGE - Easy removal of inside roof lining.
Patent DE-4134493-A1 (DE)
Inventor: ZAVISKA DALIBOR
IPC: B60T8/48
Filed: 1991-10-18
Abstract: Proposed is an anti-blocking hydraulic system in which a flow-control valve (20) is disposed between the master cylinder (1) and the wheel brake (3). Between the brake (3) and a low-pressure reservoir (6) is a proportional-action pressure-relief valve (5) which is actuated by a proportional-action magnet. The magnet is designed such that, independently of the length of its stroke, it exerts a defined force which is a function of the current intensity. In this way, the pressure-relief valve can be set to open at any pressure which gives the appropriate brake pressure.
Patent DE-4136143-A1 (DE)
Title: Valve control mechanism for IC engine - has combination of two rocker arms which can be positively joined by locking lever
IPC: F01L1/18
Filed: 1991-11-02
Abstract: The valve control arrangement for an IC engine has two rocker arms (4,5). They have different cam contact surfaces (12,16) acting on a valve (1) in conjunction with cams of different shape. The first rocker arm (4) swivels about a fixed location axis (6) while the second rocker arm (5) swivels about an axis (8) mounted in the first rocker arm and can be positively joined to the first rocker arm by a locking lever (20) fitted to the first rocker arm. USE/ADVANTAGE - Valve control arrangement which allows different valve lift curves for two operating regions of the IC engine.
Patent DE-4139671-A1 (DE)
Title: Valve for fluid media, esp. gas - has one piece valve body and seat shaped by punching, having equal wall thicknesses, valve body has channel and holder for sealing ring and flanged edge to receive magnet or cover
Inventor: STAIGER BRUNO
IPC: F16K31/06
Filed: 1991-12-02
Abstract: The valve body (2) and seat (13) are one piece and formed from a thin sheet, the wall thickness of both being the same. The width of one edge of the valve seat facing a valve seat seal approximately equals the thickness of the metal plate forming the valve body which is approx. 0.2 to 0.6 mm. The valve body and valve seat can be made by the punching process. A holder (17) for a sealing ring (18) is imprinted in the metal plate wall of the valve body. A channel (20) and a flange edge (14) for receiving a magnet head (3) or a valve top are also formed on the valve body. USE/ADVANTAGE - Especially for use as a magnetic valve. Economical production involving less stock-removing work.