baber/WOPTO huggingface dataset:
Patent DE-3940875-A1 (DE)
Title: Arrangement for dispensing liquids from reservoir
Inventor: RAAB ALFRED DIPL ING
IPC: B67D1/10
Filed: 1989-12-11
Abstract: The dispensing arrangement contains a cylinder enclosed by a housing with an axially movable feed piston (11) with an axially parallel bore contg. a control piston (16). The control piston forms an inlet (14) with the cylinder end and an outlet (26) with the feed piston. The inlet and outlet are alternately opened and closed w.r.t. the cylinder chamber and feed piston by axial movement of the control piston.
Patent DE-4001652-A1 (DE)
Title: Mixed building material-transport equipment - has magnetic-card station controlling hatch lock and additive-metering devices
Inventor: BITTMANN PETER
IPC: B28C5/42
Filed: 1990-01-20
Abstract: The vehicle transports mixed building material from a central mixing station to site, being typically a mobile concrete mixer. The mixture is prepared in predetermined proportions in the station and loaded into the equipment, and is made ready for use at site by adding water and other additives as desired. A lock is for the filler hatch, together with metering feeds for the water and additives. A magnetic-card station controls the lock and metering feeds, also providing all data covering the state and operation of the equipment and of the mixture. ADVANTAGE - Virtually eliminates external effects such as heavy rail or drying out, or manual tampering with mixture.
Patent DE-4004445-A1 (DE)
Title: DC machine armature resistance measurement - evaluating current resulting from voltage pulse applied to winding
Inventor: VETTER THOMAS DR
IPC: G01R31/34
Filed: 1990-02-14
Abstract: The resistance measurement is effected by evaluation of the current resulting from a voltage pulse applied to the armature winding for determining the ohmic resistance of the latter wing the magnetic characteristics of the iron core. Pref. the measured current and voltage values are fed to a processor (2) which uses a theoretical model (3) of the DC machine (1), the calcualted current values  (cm) obtained from the voltage (u(t9) compared with the actual current (i(t)). ADVANTAGE - Rapid, exact measurement.
Patent DE-4025227-A1 (DE)
Inventor: WINTERFELDT ANDREAS DR
IPC: C07C19/08
Filed: 1990-08-09
Abstract: According to the process of the invention, highly fluorinated alkyl bromides, preferably perfluoroalkyl bromides, are produced by the reaction of highly fluorinated alkyl iodides with phase transfer catalysts in bromide form.
Patent DE-4033891-A1 (DE)
Title: Expeller-absorption unit - is for periodically working solar-heated absorption refrigerator
Inventor: KLEINEMEIER HANSPETER DIPL ING
IPC: F24S10/40
Filed: 1990-10-25
Abstract: The expeller/absorber unit (21) incorporates a so-called collector tube of glass (1) closed on one side, and rendered vacuum-tight on the opposite side by a metal cover (2). In the glass tube in concentric arrangement is a cylindrical tube (3) with two ribs (4,5) for surface enlargement. On the outside of the cylindrical tube and on the surface of the ribs are layers for absorption of solar radiation. Also in the cylindrical tube (3) are two further such tubes (6,7), of which the one (6) is closed on its underside, whilst the inner (7) is open on the underside. In this way, there is a connection between the inner space of the innermost cylinder tube (7) and the ring gap between the two innermost cylinder tubes (6,7). In the ring gap between two cylindrical tubes (3,6) is located the mixt. (8) of absorption and refrigerating media. As absorption medium solid material can be used, e.g. CaCl2, LiCl, MgCl2, and as liq. matter H2O. As refrigerant CH3OH and amine are suitable. USE - For a periodically functioning, solar-heated absorption refrigerator.
Patent DE-4035870-A1 (DE)
Title: Work process and equipment - uses thermal energy from heat sources evaporating easily boiled medium in heat exchanger
Inventor: PRIEBE KLAUS-PETER
IPC: F03G4/00
Filed: 1990-11-12
Abstract: The thermal energy is taken up by a heat exchanger (1) in a closed circuit (2) for evapn. of an easily boilable work medium (3) with pref. less than 60 cal/g between 120 and 150 deg.C. The vapour at a pressure below or above that atmospheric in the closed system rises in a rise pipe (4) against the force of gravity, and in a further heat exchanger (5) is condensed. The thus produced liq. then runs via a drop pipe (6) through a turbine with connected generator (7) or similar device for energy prodn. The potential energy from the height difference between the top heat exchangers is used for work prodn., and the work medium then enters the first heat exchanger (1) via a pressure regulator valve (8). USE - To employ thermal energy for generating electricity or other work forms.
Patent DE-4040830-A1 (DE)
Title: Conveyor for stacked sheets - variable dia. drive rollers to control alignment
Inventor: STOCK ERNST
IPC: B65H5/02
Filed: 1990-12-20
Abstract: The stacked sheets are supported on two parallel transport belts looped over transport rollers (1). Each roller has two supports comprising elastic belts (9) inside grooved supports formed between fixed (6) and axially movable (6') rollers. The axial movement spreads the elastic belts and effectively alters the dia. of the rollers. A feedback control system adjusts the roller dia. to keep the stacked sheet flow aligned. The axial movement is via a drive sleeve (20) threaded into the support frame and driven by a pinion (18) linked to a servo motor. A simple feedback control operates the servo motors. ADVANTAGE - Active alignment control for sheet flow; automatic alignment control.
Patent DE-4106727-A1 (DE)
Title: Microporous compressed heat-insulating body - comprising partial or complete shrink-coating, useful on thermal surfaces e.g. heating systems and exhaust gas lines, etc.
Inventor: REISACHER JOHANNES DIPL ING
IPC: B29C63/42
Filed: 1991-03-02
Abstract: Microporous compressed heat-insulating body (I) e.g. based on fine-pored silicic acid aerogel with mineral fibre reinforcement and/or clouding agent and opt. hardener, comprises a partial or complete shrink-coating (II). Also claimed is the prepn. of (I) comprising packing the base (10) in a bag (2a) of shrinkable plastic. sealing the open end, feeding into a shrinking tunnel and shrinking the film on all sides e.g. using hot gas. (II) pref. consists of a shrink-coatable plastic film pref. polyethylene and the like. The thickness of the film (2, 11) is adapted to the weight of (10) and the degree of deformation and is pref. 4-15 micron m. (10) is partially or completely laminated e.g. with glass fibre fabric. (10) is partially or completely coated with a metal foil (13). (10) is compressed with an on-centre metal foil (14) which can exhibit corrugation or holes. USE/ADVANTAGE - (I) are used on thermal surfaces such as heating systems, exhaust gas lines, catalysts, reactors and car engines. The coating is inexpensive and easy to mfr. It has good expandability and guarantees optimum protection.
Patent DE-4111024-A1 (DE)
Title: Agricultural trailer with height-adjustable frame - has sprint elements transferring frame weight to ground rollers
Inventor: UNGRUH JOSEF
IPC: A01B63/14
Filed: 1991-04-05
Abstract: The agricultural trailer such as a mower has a height-adjustable frame supported on the ground by runners and support wheels (5,6) which in the work position of the frame (2) are supported for free up and down movement to a limited extent relative to the frame. The freedom of movement is provided by an oblong hole (20) which holds a connecting bolt (10) of the attachment of the hydraulic support cylinder (12,13). USE/ADVANTAGE - Agricultural trailer e.g. mower. The wheels always retain the pressure transferred by the spring elements so that they can allow a sideways guide of the mower even on sloping ground.
Patent DE-4111591-A1 (DE)
Title: Haymaking machine for scattering or windrowing - has two rake wheels revolving in contrary motion mounted on framework supported by guide wheels
Inventor: RAUSCHER SIGURD ING
IPC: A01D78/10
Filed: 1991-04-10
Abstract: A haymaking machine for scattering, turning or windrowing has two or more rake wheels revolving in contra motion on transverse axles. The rakes are supported on a frame by guide wheels and the frame is attached by a tow bar to the three point coupling of a tractor equipped with a height gauge. The outer frame (3) can swing downwards when the inner frame (2) is raised up and moves into an inwards swinging transport position (15), in which the long axis (24) of the outer frame (3) forms an angle (16) with the long axis (23) of the inner frame (2). The width (18,35) of the machine is adequately set transversely to the line of travel. The outer frame (3) can be located in at least one of the transport positions (15 or 15'). USE/ADVANTAGE - Can be operated entirely by the tractor driver.
Patent DE-4112288-A1 (DE)
Title: Extinguishing oil fire at borehole by hollow concrete ball - comprises choking oil outlet and discharging sand, and sealing outlet with solid concrete ball with oil flow control valve
Inventor: MORITZ SIEGFRIED
IPC: E21B33/02
Filed: 1991-04-15
Abstract: Hollow concrete ball filled with sand is towed by tracked vehicles to the fire, which the ball chokes or the escaping sand extinguishes. The ball is towed away, and replaced by a concrete ball which is used to seal the borehole and has a device for controlling any further outflow of oil. A variant is claimed in which the outflow of sand is through an iron plate at the bottom of the hollow ball. The plate is melted by the heat. USE/ADVANTAGE - The procedure, including arranging for any oil outflow, after the fire has been put out, to be controlled and piped away (e.g., into tanks), takes about 40-120 days, and could be used to extinguish all borehole fires in the vicinity in a comparatively very short time.
Patent DE-4112344-A1 (DE)
Title: Sealing oil and gas well pipelines and extinguishing fire - by sawing through half pipe cross=section with very thin blade, inserting slide plate
Inventor: JANKE FRITZ
IPC: F16L55/10
Filed: 1991-04-16
Abstract: Appts. for sealing off the pipelines of burning gas and oil wells and extinguishing the fire consists of hinge devices (2, 3) that can be fitted to the pipe (1), the slide plate (7) and the mechanical section (8) of the arrangement, which includes the saw arms (5) and blade (4), the drive and control devices and the heat shield. Also claimed are the saw blade (4) being a very thin steel band impregnated with hard metal or diamond chips arranged perpendicular to the longitudinal axis of the pipe and cutting into the pipe as far as half the pipe dia.; and the slide plate (7), parallel to the cut plane and fitting in the slot (6) and which can be bolted to the hinge device (3) and seals off the open part of the pipe (1). USE/ADVANTAGE - Almost entirely eliminates risk of personnel and considerably reduces costs and saves much time. The arrangement can be fitted to the pipeline by remote control and can be operated automatically and quickly seal off the pipeline and so put out the fire.
Patent DE-4113202-A1 (DE)
Title: Switch for tunnelling machine hydraulic drive - interrupts pump delivery when ram pressure drops to reduce spillage of hydraulic fluid
Inventor: EVERS ACHIM
IPC: F15B20/00
Filed: 1991-04-23
Abstract: The hydraulic drive for mobile and stationary industrial implements has an environmental protection safety switch (1) near the pump (2) which with normal ram pressure in the return flow pipe ensures the maintenance of the normal operating state. In the event of falling ram pressure the switch automatically interrupts the flow to the user aggregate (10). The short time closure of the release (4) from pressureless circulation to working pressure in the hydraulic pipes is effected by a control valve (9). USE/ADVANTAGE - Control switch for mining and tunnelling equipment which prevents the environmentally harmful discharge of large amounts of hydraulic fluid.
Patent DE-4116368-A1 (DE)
Title: Electromotor for driving motor vehicle windscreen wiper - has integral spring and loading resilient wedge which biases motor shaft
Inventor: LIEBANA JUAN
IPC: H02K7/08
Filed: 1991-05-18
Abstract: The electromotor has an armature shaft (3). The free, rounded end (5) of the shaft is axially biased by a spring-loaded wedge 6, 7). This wedge cooperates with a counter wedge (11) fixed to the housing. The spring can be made integral with the wedge using two springs (8, 9) extending in opposite directions. The counter wedge is made integrally with the housing (40). This is made with an integral recess (46) for a bearing (47). The springs (8 9) are pref. leaf-springs. The wedge is pref. of U-shaped cross-section. ADVANTAGE - Cost for play-free positioning of armature is as low as possible. Small and light. Cross-section and length of wedge can be varied within ide range. Material has important effect.
Patent DE-4116764-A1 (DE)
Title: Appts. for shutting-off escaping oil, gas and other fluids - using large-bore storing equipment to obliquely bore past damage to form cavity around intact piping, removing cementing and pipe section etc.
Inventor: SCHLAPPIG WOLFGANG
IPC: E21B29/08
Filed: 1991-05-23
Abstract: This is a method and associated equipment for shutting off the escape of natural gas, petroleum, water, and other escaping fluids, and extinguishing burning gas or oil wells. Large-bore boring equipment, or manual means, are used to obtain access. An oblique boring is made past the damage, and formed into a cavity around the intact piping, where the cementing and the section of pipe concerned are removed and the escaping fluid is shut off and the fire thus extinguished. USE/ADVANTAGE - Escaping oil can be shut off, and fires extinguished, by methods and equipment which can be used irrespective of whether the well area is mined (as in Kuwait). Escaping gas and other fluids, including water, can be similarly stopped, and the method may be of use in nuclear power stations.
Patent DE-4117607-A1 (DE)
Title: Loudspeaker unit with digitally controlled transfer function - has individual loudspeakers incorporated in walls of common driver chamber, radiating to common point, with sound emitted through aperture in chamber
Inventor: JOHN KLAUS J
IPC: H04R1/40
Filed: 1991-05-27
Abstract: The energising coils of the loudspeakers are controlled by digital signals which are obtained from an analogue sound signal. The driver chamber is enclosed by a number of walls in which a number of individual loudspeakers (L1...L4) are incorporated, so that their sound energy radiates from a common summation point at the centre of the driver chamber and exits via an opening in one wall of the driver chamber. Pref. the loudspeaker unit comprises a symmetrical cube, the exit opening being smaller than the wavelength of the max. frequency. ADVANTAGE - Simple design and mfr, using ordinary loudspeakers.
Patent DE-4121738-A1 (DE)
Title: Shear for cutting off belting - has sliding block running along guideway to guide piston rod of power cylinder over full length of stroke
Inventor: WERNER ROLAND
IPC: B26D1/30
Filed: 1991-07-01
Abstract: The belt shear has a pivoted upper blade (13) working in conjunction with a fixed lower blade (12). The upper blade is connected by a toggle lever (21) to a sliding block (24) which can be traversed to and fro by the piston rod (17) of a fluid power cylinder to actuate the shear. The rod (17) is guided over its full stroke by the sliding block (24), which runs on a guideway (26) fastened at each end to a fixed part of the machine frame (11). USE/ADVANTAGE - Smooth cutting action on all belt sections.
Patent DE-4127063-A1 (DE)
Title: Mfg. epsilon-iron carbonitride layers on steel - by gas carbonitriding so layer contains specific nitrogen and carbon amts. to ensure low porosity, low crack layers
Inventor: KUNZE JOACHIM DR RER NAT
IPC: C23C8/32
Filed: 1991-08-16
Abstract: Wear-resistant iron carbonitride layer are produced on austenitic and ferritic steel surface by gas carbonitriding. The coating layer contains 3.5-4.5 wt.% N and 0.8-1.5C with a total content of N+C of below 6.0 wt.%. USE/ADVANTAGE - Coating material which is subjected to wear or corrosion environments. Coating has low degree of porosity and cracks and no cementite-rich brittle layer is produced in the critical diffusion zone bordering the nitride layer.
Patent DE-4127677-A1 (DE)
Title: Paper-making blanket end preparation - has separator to transfer individual wefts to gripper roller for extn. leaving warps as end fringe for weaving together as continuous blanket
Inventor: HAARDT KLAUS
IPC: D03D3/04
Filed: 1991-08-21
Abstract: To prepare the ends of woven materials to be seamed together to form a continuous fabric, e.g, for water extn. and drying blankets in papermaking machines etc. the ends are converted to fringes to be joined by a needle loom system. Fringing roller with grippers running along at least one mantle line at an angle to the roller axis, is between the yarn separator and the collected store to be formed, above or below the material. They are moved, in cycled steps, towards the warps where the rear leg of the separator is behind the row of wefts, so that the final weft of the weft rows at each end of the material can be caught by the head of the separator and drawn out of the woven structure. It is caught by the grippers of the fringing roller to be carried out of the woven structure across the whole material width along the weft line. ADVANTAGE - Operation extracts the wefts mechanically, to give fringed ends, without time-consuming manual prepn. work.
Patent DE-4128923-A1 (DE)
Title: Sepn. assembly for fluids, esp. tiny fractions of blood - including a sepg. filter piston which slides into lower tube to form a fluid seal
Inventor: SARSTEDT WALTER
IPC: G01N33/49
Filed: 1991-08-30
Abstract: The assembly consists of a lower cylindrical tube and an upper sepg. filter piston which slides into the tube forming a fluid seal. The novelty is that (a) the sepg. filter piston has a filter area and a valve, above which is a bush whose external dia., is about the same as that of the internal dia., of th tube; (b) the insert, which is pushed in the bush at the base of the piston shaft, is friction tight with the sepg. filter piston; (c) the friction tightness is weaker than the sliding fit between the piston and the tube; and (d) when the piston is slid into the tube, the upper shaft and contents and insert can be pulled away from the lower piston. USE/ADVANTAGE - It is claimed that the arrangement facilitates the almost complete removal of even small quantities of blood serum from the upper sector of the sepn. tube.
Patent DE-4132309-A1 (DE)
Title: Stoneley wave component - having finger electrodes made of material and of height to produce no wave reflections
Inventor: LERCH REINHARD DIPL ING DR
IPC: H03H9/02
Filed: 1991-09-27
Abstract: Stoneley wave component has (a) interdigital converter, having finger electrodes, located in the region of the boundary surface between an isotropic carrier medium and a piezolectric carrier medium, to serve as a sender to execute the stoneley waves and as a receiver for the waves; Conditions for the existence of stoneley waves in the region of the boundary surfaces is fulfilled; (C) the wavelength (lambda) of the waves is calculated from the distance (d) of the middle of the electrodes (9), the distance pref. being lambda/2. SiO2 is pref. used as the isotropic carrier medium (2) and a Li-tantalate layer, pref. times 148.8 deg.-LiT1O3, is used as the piezoelectric carrier medium. Lambda/4-width finger electrodes, made of Ag or Au are used. When the Ag electrodes are used, H = 0.012 lambda and when Au electrodes are used, H = 0.005 lambda. USE/ADVANTAGE - Converter is non-reflecting, esp. for stoneley waves of h
Patent DE-4135877-A1 (DE)
Title: Resilient pressure responsive gymnastic or play mat - has zones of different colour or appearance, altered by pressure and returned to original condition after delay
IPC: A63C19/04
Filed: 1991-10-31
Abstract: The resilient mat-which may be the size of a small carpet, e.g. having a length and breadth of between 40 and 200 cm and which can be used in a gymnasium-has a pattern of zones on its upper surface (6) which can have a different colour or appearance which can alter after pressure has been applied. After a delay, the zones return to the original condition. The zones may be fluorescent, and altered by pressure, or by use liquid crystals or chemical substance and may be affected by heat. Pressure change may be indicated by characters or numbers or other display devices. A layer of porous material (5) above a grid (4) can be used. A solar cell can be incorporated. ADVANTAGE - Use can be altered after pressure has been altered, to avoid injury.
Patent DE-4137852-A1 (DE)
Inventor: MOHR JUERGEN DR
IPC: C08F8/30
Filed: 1991-11-16
Abstract: The invention relates to carbamic acid esters (carbamates) containing a long-chain N-alkyl radical, to a process for the preparation of the carbamates in a manner known per se, and to fuels and lubricants which contain these carbamates as additives.
Patent DE-4141661-A1 (DE)
Title: Chlorine-contg. polymers stabilised against light - contain hindered amine(s), a zinc cpd. and an organic-tin cpd. to prevent discoloration
Inventor: WIRTH HERMANN O DR
IPC: C08K5/098
Filed: 1991-12-17
Abstract: Chlorinated polymers stabilised against light by sterically-hindered amines are further stabilised against discoloration during heating or thermoplastic processing by the presence of both (a) an (in)organic Zn cpd.; and (b) an organic Sn cpd. of formula (A)-(H). A 1,3-dicarbonyl cpd. is opt. also present, as in opt. also an organo-Sn-carboxylate. In formulae, n, p and q are 1 or 2; r is 2-10; X is -O- or -S-; R1 is 1-18C alkyl; R2 is 1-18C alkyl, 5-8C cycloalkyl or 7-9C phenylalkyl; R3 is 1-20C alkyl, 3-20C alkenyl, 5-8C cycloalkyl, Ph, 7-18C alkylphenyl or 7-9C phenylalkyl; and R4 is as for R3, but excluding 3-20C alkenyl. The hindered amine light stabiliser is pref. a polyalkylpiperidine deriv. contg. at least one gp. of formula (I) (where R is H or Me). USE/ADVANTAGE - Polymers or blends based on PVC or on copolymers contg. at least 80% vinyl chloride and which are light-stabilised with, e.g., polyalkylpiperidine sterically-hindered amines are stabilised against discoloration.
Patent DE-4142311-A1 (DE)
Title: Separate injection pump for IC engine - uses roller in central joint of lever pair, acting with control cam on cam shaft
Inventor: CLEMENT PETER
IPC: F02M59/10
Filed: 1991-12-20
Abstract: The piston is controlled by a cam (7) of the cam shaft, via a roller (9). The roller is located in the central joint of a lever pair, which encloses an angle of between 90 and 180 degrees. The lever pair consists of a pump lever (3) and a housing lever (4). The free outer end of the pump lever is connected to the pump piston. The free end of the housing lever is born on a load transmission surface (5). This is located in the engine casing (6), and/or in a lever housing (2), which is fixed to the engine housing. ADVANTAGE - Simple conversion of engines with block injection pumps, for individual pumps with better injection pressures.