baber/WOPTO huggingface dataset:
Patent DE-4221970-A1 (DE)
Title: Sodium alkenyl or alkynyl salt use in metal electroplating bath to bind halogen - useful for preventing toxic halogen gas emission, esp. from zinc@, nickel@ or copper@ plating bath e.g. fluorine@, chlorine@, bromine@ or iodine@ at inert anode
Inventor: BLAESING HORST
IPC: C25D3/02
Filed: 1992-06-30
Abstract: Na vinyl sulphonate (IA), Na allyl sulphonate (IB), K vinyl acetate (IC), Na propyne sulphonate (ID), diethylpropynyl ammonium chloride (IF), dimethyl propynyl ammonium H sulphate (IG), butyn-1,4-diol (IG) or Na alpha-hyroxypropyne sulphonate (IH) is used as additive in metal electroplating baths. (I) are pref. added in concns. of 0.01-10 g/l. The baths and an inert anode are used in a liq.-tight housing, pref. of ion exchange material or plastics. USE/ADVANTAGE - (I) are used in Zn, Ni or Cu plating baths (claimed). They prevent the generation of toxic halogen gases (esp. F2, Cl2, Br2 or I2) at an inert anode. In an example, a plating bath had an anolyte of 5 g/l H2SO4; and a catholyte of 370 g/l NiSO4.6H2O, 40 g.l NiCl2.6H2O, 40 g/l H3BO3, 8 g/l NaCl and 1 g/l brightener ('Stratolus C'; RTM). An inert anode surrounded by a membrane to reduce the Ni content was used, as Ni contents of over 90 g/l reduce levelling. Operation was stopped after a few min. because of a strong Cl2 odour. If 245 mg/l (IA) were added to the anolyte, the odour disappeared immediately and the effect was maintained for several hrs., after which more (IA) was added. It did not interfere with the process.
Patent DE-4222808-A1 (DE)
Title: Monitoring impacts during shunting of railway trucks - evaluating acceleration and deceleration values following detection of shock by light barrier and pendulum
Inventor: PEISELER GOETZ
IPC: B61L17/02
Filed: 1992-07-13
Abstract: The acceleration or deceleration values following the detection of a switching shock are measured at different time intervals, recorded, and evaluated to determine the intensity of the shocks.  The maximum acceleration or deceleration value following detection of the shock is also measured and recorded in an electronic storage device. The measurements can be performed at 10 ms intervals and the acceleration or deceleration recorded as the average values over the 10 ms intervals.  A total of 25 values is measured for each shock.  A shock can be detected using a light barrier to detect the motion of a pendulum starting. ADVANTAGE  - Enables reliable monitoring of shocks even for railway waggons with hydraulic buffers.
Patent DE-4230066-A1 (DE)
Inventor: NEUBAUER WILHELM ING
IPC: F26B7/00
Filed: 1992-09-09
Abstract: A process and device are useful for drying industrial casks (60). The industrial casks (60) are set on a slanting base (12, 20) and are enclosed in a pressure-tight vacuum hood (30). A suction hose (40) linked to the vacuum hood (30) extends through a bunghole (63) of the slanting cask (60) down to its deepest point (71), at which a residual amount of liquid (70) is collected. A heating rod (55) is arranged in the suction hose (40). The suction hose (40) is connected to a vacuum pump (48). The heated suction hose (40) sucks at first the liquid residual amount (70) then the evaporating residual liquid from the inside of the cask (60). Compared with the conventional drying process with overheated steam, lower costs and an improved drying are achieved.
Patent DE-4235087-A1 (DE)
Title: Cylinder head gasket in internal combustion engine - has gas sealing area opened conically inwards during mfr.
Inventor: STECHER FRIEDHELM
IPC: F02F11/00
Filed: 1992-10-17
Abstract: The sealing area ensures the gas seal runs opening conically inwards in a radial direction, so that despite discarding of the sealing surface a main sealing line appertains in the inner part of the gas seal. The radially inclined position over the periphery of the gas sealing area is of varying size and at each point is as least as large as the sum of the inclined positions of the two sealing surfaces of the cylinder head and the cylinder block under full screw force. The all-round sealing surfaces comprise rings radially one behind the other with constant inclinations and the saw-toothed hollow spaces in the area of the gas seal are filled with a mass improving the seal (e.g. silicon rubber, or Viton (RTM)). USE/ADVANTAGE - Cylinder head gasket. It has an improved sealing capacity.
Patent DE-4236641-A1 (DE)
Title: IC engine piston oil scraper ring
Inventor: DEMARCHI VALMIR
IPC: F16J9/20
Filed: 1992-10-29
Abstract: IC engine piston oil scraper ring has outer working surface defined by several concentric regions of identical dia.
Patent DE-4238332-A1 (DE)
Title: System for slowing or braking vehicle - involves extracting and leading some kinetic energy into spring storage where it is converted into potential energy and available for acceleration stage
Inventor: NIERMANN ULRICH
IPC: B62L1/00
Filed: 1992-11-13
Abstract: At least part of the kinetic energy of the vehicle is led into a mechanically operating energy storage device (10). The kinetic energy is extracted from the vehicle as a movement energy. The stored energy is converted into potential energy, especially elastic energy, such that it is available in part for the next acceleration stage as movement energy. The energy storage device is a compression spring. USE/ADVANTAGE - Especially for bicycles. It improves the economic and ecological performance of the vehicle.
Patent DE-4239520-A1 (DE)
Title: High-performance filter with high thermal and chemical stability - has adsorber particles bonded to a three-dimensional porous support coated with a thermally stable, hydrolysis-resistant plastic
Inventor: BLUECHER HASSO VON
IPC: C09J7/26
Filed: 1992-11-25
Abstract: A high-performance filter is claimed, consisting of a 3-dimensional supporting structure (A) to which adsorber particles (B) are attached by means of a bonding agent (C). (A) is coated with a thermally-stable plastic (I) which is very resistant to hydrolysis, in amts. of 20-500% w.r.t. (A). Pref. (A) is reticulated PUR foam with large pores, coated with a silicone resin, esp. silicone rubber, or sintered polypropylene (PP), hydrolysis resistant PUR, crosslinked acrylic resin, synthetic rubber or fluorinated or partly fluorinated plastic, or a combination of such materials with complementary properties. (C) is an adhesive with good chemical and thermal stability which is also resistant to hydrolysis, esp. PUR, acrylate copolymer, acrylate, or a latex based on neoprene, chloroprene, butyl rubber, synthetic rubber or silicone. USE/ADVANTAGE - The invention provides a high-performance filter which combines the advantages of a polyurethane (PUR) foam support (good porosity (i.e. high air permeability), and flexibility) with high thermal stability and resistance to hydrolysis (contrast uncoated PUR which is unable to withstand desorption by heating to above 150 deg.C or by treatment with superheated steam). In an example, reticulated PUR-polyurea foam with 15 pores/inch and bulk density 30g/l was impregnated and squeezed out with a mixt. of 1000 pts. wt. Impranil HS 62 (RTM) and 62 pts. wt. Imprafix HSC (RTM) (squeezing effect 120%), and dried at 160 deg.C to give a crosslinked, very hydrolysis-resistant coating which improved the response of the foam to external conditions. The same material was used as bonding agent for the adsorber (active carbon). The finished filter mat had density, 295g/l, comprising 30 g/l original foam, 65g/l PUR coating and adhesive, and 200g/l adsorber. The service life of the mat was increased by 40-60% for desorption by superheated steam; for nitrogen desorption the temp. could be increased to 160-165 deg.C.
Patent DE-4240549-A1 (DE)
Title: Electrostatic copier or printer with DC energised charging roller - has composite roller with metal core and flexible layers in contact with photosensitive drum for reduced cost and ozone emission.
Inventor: KUROKAWA JUNJI
IPC: G03G15/00
Filed: 1992-12-02
Abstract: The copier/printer has a charging roller (100) in contact with the photosensitive drum as an alternative to the conventional corona discharge device. The roller (1200) has a 6 mm diameter metallic core (101) connected to a DC source and is covered by an elastic layer (102) 3mm thick of eg epichlorohydrin rubber having a specific resistance of 3x10 power 8 ohm.cm. Another film (103) of similar material treated with a solution of fluorine based resin of 30 micrometres thickness and having a specific resistance of 3x10 power 10 ohm.cm completes the assembly. USE/ADVANTAGE - Eg for facsimile appts. Is less expensive than alternative corona discharge system, requires less energy and generates less ozone. Service lift of charging unit and imaging drum is improved due to reduced ozone with equivalent environmental benefits. Operates at lower voltages than alternatives to produce satisfactory charge distribution and imaging.
Patent DE-4241921-A1 (DE)
Title: Root canal prepn. e.g. drilling or filling instrument - has weak point for preferential shaft breakage away from tooth
Inventor: ZDARSKY EDWARD
IPC: A61C5/02
Filed: 1992-12-11
Abstract: The instrument has a handle for holding the shaft of the instrument, the novelty being that the shaft (3) has a weak point (4) which is pref. located in the shaft portion within the handle (1) or which is in the form of a plastics-filled constriction in the shaft portion outside the handle. Pref. in the former case, the weak point region (4) of the shaft (3) is covered by a sleeve (5) of trifluoroethylene or metal. ADVANTAGE - On overloading, the instrument shaft breaks well away from the tooth so that the broken tip can be extracted without difficulty from the root canal.
Patent DE-4242963-A1 (DE)
IPC: B60R1/076
Filed: 1992-12-18
Abstract: An external rear-view mirror for motor vehicles, with a casing formed at its rear, open end to receive an adjustable mirror body, said casing merging, at least at the top, seen in the plan view of the mirror, practically without a slot into the foot of the mirror, in which the casing (1) its side facing the foot (2), is shaped in the manner of a portion of the external surface of a body of revolution (9) (circular cone, truncated circular cone, paraboloid), tapering in the longitudinal direction of the vehicle and is pivotable about the main axis (6) of the body of revolution. <IMAGE>
Patent DE-4300036-A1 (DE)
Title: Bath made of metal or other suitable material - has network of hot water ducts over its outer surface, and is connected to cold water system and hot water system.
Inventor: ACHTERBERG PETER
IPC: F28D1/06
Filed: 1993-01-02
Abstract: The bath is designed for installation in a domestic bathroom. It is made of metal or other material has a system of hot water ducts over its outer surface, connected to a heating system. The bath is also connected to a system of cold water ducts connected to a cold water supply. USE/ADVANTAGE - The bath acts as a heat exchanger, with hot water ducts over its outer surface connected to a heating system for heating the water and the ambient air.
Patent DE-4303826-A1 (DE)
IPC: B23K26/282
Filed: 1993-02-10
Abstract: In order to make the manufacture of galvanised bar elements (10), for example for space frameworks, more economical, the individual parts of the bar elements (10), namely the hollow bar (11) and the end pieces (12), are galvanised before they are connected. The ring welds between the galvanised parts (11, 12) are made by laser welding. On account of the high energy density of the laser welding beam and the narrow ring welds (18) formed in the process, a zinc coating (24) fed by the zinc coatings (22) of the adjacent parts (11, 12) forms across each ring-weld surface (25) in the course of the welding operation, so that, after the welding operations, the bar element (10) is also provided with an anti-corrosion zinc coating (24) over the ring-weld surfaces (25). <IMAGE>
Patent DE-4312244-A1 (DE)
Title: Multi-laser determn. of semiconductor surface defect concn. - evaluating accumulation atoms from steeply inclined portion, and dislocations from slowly declining portion of emission curve
Inventor: ITOH NORIAKI
IPC: G01N23/225
Filed: 1993-04-15
Abstract: In the surface defect concn. determn. method, the specimen (12) is placed in a vacuum chamber (10) between a channeltron (14) for counting the emitted atoms and a LEED(low energy electron diffraction)  monitor (16). The pumping and sampling laser systems (22,34) each consist of an excimer laser (24,36) and a dye laser (26,38) under the control of a common computer (32). The computer is responsive to signals from the channeltron output digitiser (44) and pumping beam photodetector (30). Holes are determined with the pumping beam (28) increased beyond the ablation threshold. Accumulation atoms and dislocations are determined with a weaker beam repetitively pulsed in order to obtain the relationship between the emission rate and the number of pulses. ADVANTAGE - Defects of various kinds can be measured easily and quantitatively.
Patent DE-4312340-A1 (DE)
Title: Dowel
Inventor: VOS KARL-JOSEF
IPC: F16B13/08
Filed: 1993-04-15
Abstract: In order to provide a self-clamping dowel which can be introduced into a bore and, along with simple manufacturing, permits flush installation into a bore, it is proposed that the dowel (1) be made of two part-bodies (2, 3) which exhibit a saw-tooth-like wedge-surface formation at the separating plane (4), with the result that, in the direction of introduction of the dowel (1) into a bore (6), the part-bodies (2, 3) can be displaced to a limited extent with respect to one another in the longitudinal direction of the dowel (1) such that, when the dowel (1) is pushed into the bore (6), the overall diameter of the two part-bodies (2, 3) is equal to or less than the bore diameter and, with axial drawing-out forces acting on the pushed-in dowel (1), the overall diameter is enlarged by virtue of the axial displacement of the wedge surfaces with respect to one another, such that the outer surface of the dowel is pressed in a frictionally locking manner against the bore wall. <IMAGE>
Patent DE-4315843-A1 (DE)
Title: Method and apparatus for controlling the motive power of a vehicle
Inventor: STREIB MARTIN DR
IPC: F16H59/44
Filed: 1993-05-12
Abstract: A description is given of a method and apparatus for controlling the motive power of a vehicle in which, at rest and/or during slow movement of the vehicle, a controllable transmission unit can be influenced in such a way that the loading of the drive unit is at least reduced. When emerging from the state of rest and/or slow movement, the control of the motive power up to the reestablishment of full transmission of the power takes place in a delayed manner. <IMAGE>
Patent DE-4316471-A1 (DE)
Title: Device and method for determining the charging state of a rechargeable battery
Inventor: ANDRAE PETER DIPL ING
IPC: G01R31/36
Filed: 1993-05-17
Abstract: A device and a method for determining the charging state of a rechargeable battery, in particular a nickel-cadmium accumulator, are proposed. A device according to the invention comprises at least one rechargeable battery (11), a metering device (12) and a reference component (13). The charging/discharging cycles of the accumulator are evaluated in order to determine the ageing-dependent variable capacitance of the battery as well as the charging state, operation being monitored from the start to the end of life of the nickel-cadmium accumulator. The metering device (12) is realised using a program-controlled microprocessor. <IMAGE>
Patent DE-4320247-A1 (DE)
Title: Thermal auxiliary spring for vehicle suspension
Inventor: KNAUS HANS A J
IPC: B60G15/06
Filed: 1993-05-28
Abstract: The thermal auxiliary spring supports and influences the spring of a sprung vehicle wheel. It has a closed pressure vessel (2) of constant volume, located above or at the side of and partly or completely round a casing (3) which can be varied in length. The vessel acts as a storage and equalising container for the shock-absorbing liquid or gas. The casing itself is a shock-absorbing element. The auxiliary spring and the casing are joined to each other, have heating devices fitted to then and are connected to input and output of the fluid. The auxiliary spring has its bottom (6) against a fixed part of the vehicle, e.g. the chassis (7).
Patent DE-4322429-A1 (DE)
Title: Guide device for a drive shaft and method for mounting a motor with a drive shaft in a vehicle
Inventor: RIENHARDT HANS PETER
IPC: B60S1/04
Filed: 1993-07-06
Abstract: A device is presented for guiding a drive shaft (3), which is provided in particular to drive a window wiping arm, through a window pane (11) of a vehicle in a watertight fashion, with the following features:     - a sliding sleeve (2) adjoins the housing (1) for the drive; - the said sliding sleeve (2) is aligned coaxially to the drive shaft (3) and is penetrated thereby; - a guide sleeve (4) is mounted in a hole (21) in the window pane (11); - the sliding sleeve (2) is guided in the guide sleeve (3), the external diameter of the sliding sleeve (2) corresponding essentially to the internal diameter of the guide sleeve (4), the sliding sleeve (2) and the guide sleeve (4) being displaceable with respect to one another in the axial direction.   This arrangement has the advantage that the wiping angle is 180 DEG and that the motor itself can be mounted on the body of the vehicle. This device is easy to mount. <IMAGE>
Patent DE-4325542-A1 (DE)
Title: Method for three-dimensional measurement of inaccessible cavities
Inventor: HARTRUMPF MATTHIAS DR ING
IPC: G01B11/24
Filed: 1993-07-29
Abstract: Published without abstract.
Patent DE-4329134-A1 (DE)
Title: Electrically actuated brake
Inventor: WALLNER STEFAN
IPC: F16D65/38
Filed: 1993-08-30
Abstract: To release the brake, which is preloaded into the braking position by means of a preloading spring 44, a coil 27 is provided and is arranged in a homogeneous magnetic field of a permanent magnet 21. For continuously variable regulation of the braking force from full braking to no braking, the current intensity of the current fed to the coil 27 can be varied. The variation in the deflection of the coil 27 or deflection force is thereby produced and, if required, this is transmitted to an axially displaceable pressure plate 17 by way of a lever arrangement 32 and counteracts the preloading force. <IMAGE>
Patent DE-4329456-A1 (DE)
Title: Process for the preparation of mixtures of used plastic containing halogen components for feedstock recycling
Inventor: GEBAUER MANFRED DR
IPC: C10G1/00
Filed: 1993-09-01
Abstract: By means of an extruder, the aim was to prepare a mixture of used plastic containing halogen components for use in refinery plants, with the corrosion at the beginning being substantially suppressed during elimination of the majority of halogens. The mixtures of used plastic are pre-degraded in the extruder under shear forces and at elevated temperature until approximately the viscosity of the refinery feedstocks has been reached, a mixture of primary alkylamines and aminoalcohols, dissolved to form a concentrated aqueous solution, having a pH of from 11.0 to 12.0 in amounts of from 100 to 1000 ppm, based on the mixture of used plastics, being added from 1 to 5 D before the vent of the extruder. Preparation of mixtures of used plastic, preferably from domestic plastic garbage, containing halogen components for use in refinery plants.
Patent DE-4331765-A1 (DE)
Title: Oscillation assembly control means for driving an electrothermal drive for a thermostatic valve
Inventor: KUEPPERS LORENZ
IPC: G05D23/19
Filed: 1993-09-17
Abstract: An oscillation assembly control circuit controls an electrothermal drive for a thermostatic valve continuously, via a thyristor optocoupler. In order to provide a simple circuit in conjunction with an electrothermal drive and to provide continuous control means, which are simple, can be installed rapidly and are easy to service, for heating circuits or similar application purposes, it is proposed that only those half waves of the mains having the same parity are used for heating a negative temperature coefficient resistor in the electrothermal drive and that, by means of the half waves of the mains directed in the opposite polarity, a measuring current flows to the negative temperature coefficient resistor via a decoupling diode, in order to acquire the temperature of the negative temperature coefficient resistor and of the expanding body connected thereto. <IMAGE>
Patent DE-4332107-A1 (DE)
Title: Sensor for detecting presence of fault and switching operation to predetermined emergency mode - while signalling presence of fault, simplifying the subsequent problem of carburettor mixt. fault identification and rectification
Inventor: KAMMANN UWE DIPL ING
IPC: G05B9/02
Filed: 1993-09-22
Abstract: An assembly has a sensor (1), which is coupled via a signal transmission path (cable 5, signal path 10) to a control unit (11) to influence the operation of a motor (15) and which reacts to at least one fault sensor (1) function report, in which information signals and fault signals can be transmitted through the signal transmission path (cable 5, signal path 10). The novelty is that if a fault signal is transmitted, the control assembly (11) initiates a pre-determined emergency operation procedure, or depending on the type and/or duration of the fault in the motor (15), if an information signal is available, motor operation is maintained for a given period using the information signal. USE/ADVANTAGE - The arrangement is for an assembly incorporating a sensor which maintains carburettor mixture within given parameters in the presence of a fault. The arrangement simplifies the job of fault-finding.
Patent DE-4333020-A1 (DE)
Inventor: BAUER BERND DIPL CHEM
IPC: B01D61/44
Filed: 1993-09-28
Abstract: The invention relates to ion-conducting spacers for dialysis, electrodialysis or electrolysis cells. The spacers comprise a material functionalised with anionic and/or cationic groups and they represent a flat, porous structure having a thickness between 10<-2> and 10<-4> m and having pore diameters between 10 and 1000  ANGSTROM .
Patent DE-4333242-A1 (DE)
Title: Arrangement for forming cargo spaces in refrigerated-cargo vessels
Inventor: PERRAKIS EMMANUEL
IPC: B63B25/16
Filed: 1993-09-30
Abstract: An existing insulating material is here closed off in the area of the walls on the side facing the cargo space by an additionally applied film. A gas-tight cargo space closed off from the insulating material is thus created.
Patent DE-4336268-A1 (DE)
Title: Emission-free extn esp of bitumen from asphalt - with reduced solvent requirement and without use of chlorocarbon(s)
Inventor: PITTS MARTIN
IPC: B01D11/02
Filed: 1993-10-23
Abstract: Emission-free extn. of a substance from a mixt. is effected by (i) heating the solvent or extract phase and condensing the solvent vapour; (ii) extracting the substance from the mixt. using the returned condensate; (iii) heating water after the end of the extn. operation and condensing the steam; (iv) washing solvent residues from the raffinate phase using returned condensed steam; (v) separately collecting the water/solvent phase; (vi) withdrawing the extract phase, the water and the water/solvent phase; and (vii) drying the raffinate. Also claimed is appts. for carrying out the above process. USE/ADVANTAGE - Esp. for bitumen extn. from asphalt using dearomatised SBP. The process is simple, rapid and emission-free and avoids the use of chlorocarbons.
Patent DE-4339301-A1 (DE)
Title: Paint changing block for selective feed of different liq. paints
Inventor: NUSSBAUM HERBERT
IPC: B05B12/14
Filed: 1993-11-18
Abstract: Reservoirs of the different paints are coupled to the block (10) via feed lines just as the pressurised air and cleaning fluid. The block is also coupled to a paint applicator via a feed line. Each connecting union (20) has a control valve (34) energised by pressurised fluid control lines (38,39). The paint block has a cylindrical housing (12) with connecting unions (20,38) at one front side for the feed and control lines. At the opposite front side is a connecting union (32) for the application feed. There is a spinal groove (28) inside the block for the control valve regulation fluid.