baber/WOPTO huggingface dataset:
Patent DE-4014882-A1 (DE)
Title: Polyfunctional poly-organo-siloxane(s) - by low-temp. nitration of poly-methyl-phenyl-siloxane(s), and conversion of nitro gps. into other functional gp(s)
Inventor: HACKER HEINZ DIPL CHEM DR
IPC: C08L63/00
Filed: 1990-05-09
Abstract: Polyfunctional polyoganosilanes are of formula (I) (where n = 10-500; R = Me, with ratio Me:Ph gps. = (2.2:1)-(3.5:1); X = NO2, NH2, OH, Hal, CN, NCO, (meth)acrylate gp. or maleimide gp. of formula (II) (with R1 = H, 1-4C alkyl or Ph). Also claimed is a process for the prodn. of (I) by low-temp. nitration of the corresp. unsubstd. polymer (with X = H) with a mixt. of Ac2O and concentrated HNO3 to give a poly(nitrophenyl)siloxane (I, X = nitro). Other functional gps. are introduced by redn. of the nitro polymer (pref. with Fe/AcOH in EtOH) to give the corresp. amine, and conversion of the amine gps. into OH, Hal, CN or NCO, or into maleimide gps. by reaction with opt. substd. maleic anhydride. USE/ADVANTAGE - (I) are used for prodn. of polymers with liq. crystalline side chains (claimed). Enables prodn. of polymers with the usual desirable properties of silicones (thermal stability, elasticity, low water absorption, good electrical properties, etc.) combined with functionality distributed along the whole polymer chain, which can be used to introduce mesogenic gps., etc.. Other applications include photosensitive resists, photo-crosslinkable coatings, etc..
Patent DE-4015148-A1 (DE)
Title: Water heater with burner and two=part heat exchanger - has one part of heat exchanger in flame to extract hot flow and intensify flame
Inventor: FRIEDRICHS DETLEF
IPC: F23M9/10
Filed: 1990-05-11
Abstract: The water heater has a burner and a heat exchanger which consists of two units. The first unit (12) is located directly in the flame area to extract a hot flow between five and fifty per cent of the total hot stream. The design of the heat exchanger serves to optimise the combustion process while the  remaining heat flow is transferred to the second exchanger unit  (11). USE/ADVANTAGE - The flame in the water heater is stabilised and intensified to reduce carbon monoxide and  nitrous oxide emissions.
Patent DE-4017693-A1 (DE)
Inventor: LEHMANN MARTIN
IPC: G01M3/36
Filed: 1990-06-01
Abstract: A method of testing leakage from closed containers with a wall which is flexible at least in sections proposes to put the container in an atmosphere of a certain pressure and then to enlarge the inner volume of the container by acting on a section of the wall. The pressure consequently becomes greater on the outside than in the interior of the container so that a leak in the container wall cannot be adulterated by material in the interior of the container. 
<??>The invention likewise proposes a device for carrying out the method.
Patent DE-4021711-A1 (DE)
Inventor: LIEDY WERNER DR
IPC: F26B17/04
Filed: 1990-07-07
Abstract: Contact belt dryer, consisting of an endless conveyor belt for the transport of a product to be dried, a lower heating plate arranged below the conveyor belt, an upper heating plate arranged above the conveyor belt, a gas distribution device for hot gas and a gas extraction device, the gas distribution device being integrated into the upper heating plate and designed as a perforated plate.
Patent DE-4029357-A1 (DE)
Title: Roof ridge beam of adjustable height - is supported on vertical bolts on feet of inverted V=shape
Inventor: FLECK OSKAR
IPC: E04B7/02
Filed: 1990-09-15
Abstract: The roof truss for a building is provided with a ridge beam (12) of adjustable height. The ridge beam (12) is mounted in U shaped brackets (4) with each bracket being supported on a vertical bolt (3). The lower end of this bolt is attached to a second bracket (2) which is mounted on a foot (10, 11) of inverted V shape. This second bracket (2) has two horizontal arms (21,22) which lie in planes inclined to each other to match the sloping sides (10, 11) of the foot. The horizontal arms are connected by a bridge with a hole for the lower end of the bolt (3). The effective length of this bolt can be adjusted by means of two nuts attached to the bolt. USE - Roof trusses for buildings.
Patent DE-4032795-A1 (DE)
Title: Air pipe and electric cable coupling for rail vehicles - can be disconnected without disconnecting main coupling
Inventor: WOLTER WILFRIED DR ING
IPC: B61G5/06
Filed: 1990-10-16
Abstract: Two rail vehicles which are  connected by an automatic coupling are also provided with a coupling (4) to connect air pipes and electric cables between the two vehicles.  This air pipe and cable coupling (49 is supported at one end in a housing (12) and by a mounting plate (1) at the other end. The pipe and cable coupling can be disconnected by swinging a lever (24) about its pivot (7).  As this lever (24) is rotated the mounting plate (1) is lifted out of its notch (10) and the housing (12) is swung on its supporting arm (14) about  the pivot (15). USE - Air pipe and electric cable coupling for rail vehicles.
Patent DE-4037448-A1 (DE)
Title: Milling device for road grooving machine - consists of motor driven roller with chisels mounted between fixed bearing and free bearing
Inventor: WIRTGEN REINHARD
IPC: B28D1/18
Filed: 1990-11-24
Abstract: The milling device consists of a motor driven chisel roller (1) which is adjustable for height and is mounted between a fixed bearing (2) carrying the drive gear, and a free bearing (3). The fixed bearing includes a self centring toothed cone for holding and driving the roller (1), and on the other side the free bearing also includes a self centring cone. The arm holding the free bearing end of the roller (1) to the machine body is controlled by a hydraulic ram (16) which moves in the axial direction of the roller (1). USE/ADVANTAGE - The roller can be easily removed and exchanged for another of the required width.
Patent DE-4040902-A1 (DE)
Title: Tilting tube load isolating switch - has double isolating blades between which tubular shape quenching chamber is interposed with moving and fixed contacts of quenching chamber
Inventor: DIRKS ROLF
IPC: H01H33/12
Filed: 1990-12-20
Abstract: The current path in the quenching chamber, with a closed position of the contacts is arranged parallel to the double isolating blade, and a switch shaft (10) is provided for the operation of the switch. The fixed contact (2) is secured on a carrying plate (3), which by means of a spring (5) contacts a pin (6), which is electrically connected with the double isolating blade (7). The fixed contact (2) is pressed and sintered from tungsten powder and is backed with fluid copper on the carrying plate (3). The double isolating blade (7) can additionally be brought into contact to a connection contact (15) using a contact part (9), which is arranged parallel to the moving contact (4) of the quenching chamber (1) and an impact contact (8). A perforated plate (11) with an inner bushing (12) is mounted on the switch shaft (10).  The bushing (12) is made of synthetic material. USE/ADVANTAGE - Tilting tube load breaking isolating switch of old type developed and improved, so that number of possible current breaking operations, short circuit strength and contact making ability is increased.
Patent DE-4104974-A1 (DE)
Title: Single sheet paper feeder for printer or typewriter - has print roller mounts on sidewall for printers of more than one type
Inventor: ALTENBURG HELMUT
IPC: B41J11/48
Filed: 1991-02-19
Abstract: The paper feed device is mounted on a stepper motor driven print roller of a printer and has a transmission engaging a drive in the printer. Print roller mounts on its side wall to enable the feed to be connected to printers of more than one type. The side walls and roller mounts are connected via bushes (27, 28) which can accept a removable gear wheel (16). A removable support (31) can be mounted on a tongue (32) arranged on a side wall (24). ADVANTAGE - Has arrangement for matching to print rollers of different dia. and for more than one different type of printer at low cost.
Patent DE-4105192-A1 (DE)
Title: Polarimetric testing of surface properties and transparent material - by evaluating difference between reflected s and p polarised components
Inventor: OELCKERS STEFAN
IPC: G01N21/94
Filed: 1991-02-20
Abstract: A method of testing material properties involves directing electromagnetic radiation at the material surface and measuring the intensity components of s- and p-polarisation in the reflected radiation. At least one polarisation foil is placed in the beam path. The measurement values are used to determine material and surface characteristics such as roughness, irregularities, damage, correlation lengths of surface structures, irregularities and defects, inclination, fouling, etc. USE/ADVANTAGE - Enables difference between reflection coeffts.  for s- and p-polarised radiation to be evaluated.
Patent DE-4106180-A1 (DE)
Inventor: BUDDE DIRK DIPL ING
IPC: F01L25/08
Filed: 1991-02-27
Abstract: Double-diaphragm pump with diaphragms dividing two diaphragm chambers and connected to one another by a connecting rod (22), a control slide valve (12) with sealing elements (13), displaceable as a function of the position of the diaphragms (24), for alternately opening and covering control ducts (2, 3, 4, 5, 6) arranged in a control slide valve housing (1) for alternately admitting propellant to a propellant chamber and relieving it of this, and an actuating element (16, 17; 22, 28) coupled to the diaphragm movement and magnetically to the control slide valve. 
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Patent DE-4106490-A1 (DE)
Inventor: HEITZE GERHARD
IPC: B21J9/06
Filed: 1991-03-01
Abstract: To increase production in an upsetting press for reducing the width of a hot slab cast in a continuous casting installation by lateral pressure on the slab in the upsetting press between the pressing tools, which can be moved towards and away from one another by a lifting eccentric while the slab is moved on a roller table through the upsetting press, the upsetting press is to be operated in such a way that, in the time phase in which the pressing tools are not in contact with the edge of the slab, the slab is accelerated from the predetermined run-through speed and then retarded again to the original run-through speed, the upsetting reduction being reduced beforehand if required.
Patent DE-4114136-A1 (DE)
Title: Broom and brush
Inventor: WEIHRAUCH GEORG
IPC: A46B9/00
Filed: 1991-04-30
Abstract: For mfg. brushes and brooms, and the like, the bristles aretwisted round their axes in bundles before mounting to the bodyof the brush/broom. The twist of the bristles in the bundles isfixed by cold or hot shaping. The twisted bristle bundles arethen fitted into place. Pref. the bristle bundle is firmlyclamped at one end, for the bristles to be twisted at the otherend, so that the mounting end is held firmly. The bristles, asmonofilaments, are twisted in strands for the required twistangle, and cold-shaped while the twist angle is held, or thetwisted material is heated to a temp. below the level ofmolecular re-orientation. Where the bristle bundles are fused toa plastics brush/broom body, the bristles which can be heatshaped are twisted during mounting and the twist is fixed. Thebristles of at least one bundle are twisted round the bundle axisclose to each other. The bristles can be twisted over only partof the bristle length, at the working zone. The bundle ofbristles to be mounted can contain bristles twisted in differentdirections and/or at different twist pitches. Different sectionsof the broom/brush body contain bristle bundles of the same twistdirection and/or twist pitch angle.
Patent DE-4121033-A1 (DE)
Title: Electronic coin checking system - has coins directed along guide channel with inset inductive probe with diameter much smaller than that of coin to generate signals that are integrated
Inventor: COHRS HANS-ULRICH
IPC: G07D5/08
Filed: 1991-06-26
Abstract: The coin checking system has an inclined guide track (8) along which the coins roll past the sensing unit. The sensor is of an inductive type (20) and is insert into the side wall which is produced of plastic. A second probe (32) is set opposite the first and is shaped with angled surfaces (26) to guide coins (16). The probe is set into a formed frame (24) and has conducting leads (36), that are flexible. The diameter of the probe is much smaller than that of the coin and the output is integrated to generate a particular signal envelope. ADVANTAGE - Improved identification performance.
Patent DE-4122136-A1 (DE)
Title: Equipment for laying reinforcing fabric mesh in road surfacing - has mesh on roller connected to spray unit with fixing and cutting mechanisms and adjustable slide connected to take up roller
Inventor: AISSLINGER DIETER
IPC: E01C23/04
Filed: 1991-07-04
Abstract: The reinforcing fabric mesh is laid between the sub-base and the top layer. It is drawn off its roll by a roller system, located at right angles, to the direction of travel. The roller system (20) is connected to a spray unit (26) and fixing and cutting mechanisms. The roller system (20) has a slide (21) which is adjustably arranged at right angles to the direction of travel (x) in support rails (22). The slide (21) is connected to a take up roller (25) by means of a pressure arm (24). ADVANTAE - Reduces manual activities such as unrolling the fabric, applying adhesive and fixing nails.
Patent DE-4122898-A1 (DE)
Title: Attachment of sealing strip to car door - uses projections which engage preformed channels in door
Inventor: PROKOPP WOLFGANG
IPC: B60J10/86
Filed: 1991-07-11
Abstract: The sealing strip is attached to a car door (3). The sheet metal panels of the door are formed into a holding configuration (2) with two neighbouring oppositely facing open channels (6,7). The fastening projections (4,5) of the sealing strip (1) are pushed into the open channels and are retained in the correct position by gripping the backs of angled stop sections (8,9). USE/ADVANTAGE - Method of assembly of car door in which the sealing strip is simple to install and position without the need for auxiliary tools.
Patent DE-4133006-A1 (DE)
Title: Hydraulic rear-wheel steering for vehicle - uses electromagnetic valves with clamping circuit in event of system failure
IPC: B62D7/15
Filed: 1991-10-04
Abstract: The steering linkage rod (44) is attached to a piston (45) in the operating cylinder (47). Hydraulic fluid is supplied to either side of the piston through the non-return valve (52) by the pump connected at union (P). One exit from the non-return valve goes directly to one side of the piston, the other goes first through the 3-position steering valve assembly (50) to the other side. The piston works on the differential principle, moving according as to the difference in pressure on either side. A clamping valve (70) also supplied by pressurised fluid allows the steering position to be maintained in the event of failure of either control electronics or of the pump. The union (T) connects with the fluid reservoir. The valves are all electromagnetically operated with a return spring. A feedback circuit can return a position signal to the control electronics. USE/ADVANTAGE - Pressurised hydraulic rear-wheel steering. Feedback circuit with clamping valve give safety against failure of pump or electronics.
Patent DE-4135343-A1 (DE)
Title: Protection for lady's shoe stiletto heels - is tubular, transparent, rubber or thermoplastic, non-removable sheath
Inventor: ENGEL RUDOLF
IPC: A43C13/00
Filed: 1991-10-26
Abstract: The shield for shoe-heels, especially stiletto heels, is made of tubular, transparent material enclosing the heel (2) above the heel-tread (3). The tubular (4) has a cross-section widening upwards with a sloping top rim which is reinforced, and clings to the heel. The tubular covering is made of material deformed when cold or under heat, such as rubber or thermoplastic material. ADVANTAGE - The shoe heel covering is aesthetically pleasing, durable and permanent.
Patent DE-4135854-A1 (DE)
IPC: D21D5/02
Filed: 1991-10-31
Abstract: The invention relates to a screening apparatus which has at least one each of a housing attachment part (1, 1') and housing main part (2, 2') which each have a hollow-cylindrical (8, 8', 9, 9') and/or frustoconical housing outer wall with at least two coaxial, essentially rotationally symmetrical screening baskets (3, 3', 4, 4') with a rotor (5, 5') having pulsation elements (7), the accepted material chamber (37) being arranged radially outside the screening baskets (3, 4) and the rotor part (rotor parts) with the pulsation elements (7) radially inside the screening baskets (3, 4), the inflow (19) into the housing being arranged centrally in the region between the screening baskets (3, 4) and the outflow channel (26) for accepted material being arranged also in the region between the two screening baskets (3, 4). The invention is characterised in that, at least in the region of the screening baskets (3, 3', 4, 4'), only one housing main part (2, 2') and housing attachment part or housing mount part (1, 1') in each case is provided and in that the first screening basket (3, 3') is fastened in the housing attachment part or housing mount part (1, 1') and the second screening basket (4, 4') is fastened in the housing main part (2, 2'). <IMAGE>
Patent DE-4141488-A1 (DE)
Inventor: TONG YUI-LUNG GABRIEL
IPC: H01M10/48
Filed: 1991-12-16
Abstract: In a power pack (10) comprising a casing (11). one or more battery cells (12) eg. Ni-Cd cells electrically connected together and contained in the casing (11), at least two terminals (14) disposed on or extending out of the casing (11) and electrically connected to the battery cell or cells (12), discharging means eg. resistor 17 (connected through a switch) contained within the casing (11) and arranged to discharge the battery cell or cells (12) before recharging. The resistor may produce heat, and partition 24 is provided to insulate the battery cells. <IMAGE>
Patent DE-4142063-A1 (DE)
Inventor: GOTTSCHALK GERHARD
IPC: C12P1/04
Filed: 1991-12-19
Abstract: Agents and processes are disclosed for biologically controlling TCE pollution, as well as bacteria useful therefor and the use of said bacteria.
Patent DE-4142842-A1 (DE)
Title: Portable cool container pref. powered from solar energy or car battery - has insulated cover, lower part and gravity-operated coolant
Inventor: WASSERTHAL WOLFGANG
IPC: F25D11/00
Filed: 1991-12-20
Abstract: The cool container is equipped with a thermo-electric heat pump, which on the heat side in each case, and optionally on the cold side, has a gravity operated cold medium circuit and on the cold side is provided with a thermic accumulator system. All the components (5,8,9,10,12,15) are completely integrated in the cover (2). The accumulator (15), on the other side of an insulating layer (4), is located on the underside of the cover, and with its dimensions is matched to the opening area of the underpart (20), into which it extends when the cover is closed. The cover, underpart and accumulator are either rectangularly or cylindrically formed. From the accumulator system (15) part pieces (19) can be removed, and the system contains water as accumulator material. ADVANTAGE - Increased useful vol. without significant increase in covering construction.
Patent DE-4202237-A1 (DE)
Title: Fitting for tapping into pipe under pressure - has side pocket with floating ball element that floats up to seal off flow when drill is removed, and acts as stop valve
Inventor: KUNZMANN THOMAS DIPL ING
IPC: F16L41/06
Filed: 1992-01-28
Abstract: The fitting has a housing (1) with a bottom inlet (2) which is clamped and sealed against the pipe (5) and has an upper outlet (3) for a branch pipe. The housing acts as a temporary guide for a drill and then as the valve housing for a subsequently inserted stop valve (14) sealing against the seating ring (29) just below the outlet (3). The stop valve insert is in two parts: a floating ball element (31) and the valve stem (16), which has at its lower end a resilient, rotatably mounted cup (22) fitting the contour of the ball. ADVANTAGE - Simple, easily producible design providing automatic shut-off at end of drilling phase.
Patent DE-4207475-A1 (DE)
Inventor: LORENZ HERIBERT
IPC: A61K8/22
Filed: 1992-03-10
Abstract: A bleaching composition, which is in the form of a free-flowing powder, for human hair having improved use properties, especially freedom from dust and ease of mixing with aqueous hydrogen peroxide solution, is obtained by adding an oil or a liquid wax to a powder which contains at least one solid peroxy compound and at least one vehicle in the form of a powder, preferably by spraying on.
Patent DE-4207488-A1 (DE)
Title: Multiple unit train designed like semi-trailer - has twin bogie tractor unit, driven by electric motor or IC engine, with driver's cabin and controls
Inventor: GREUL ARTUR RICHARD
IPC: B61C7/00
Filed: 1992-03-10
Abstract: The multiple unit train is designed like a semi-trailer in road transport. The tractor unit has two bogies, of which at least one is a driving bogie. The bogies are constructed within the chassis so that they replace the first bogie of the train to be towed, this bogie therefore being the coupling pivot. The driving engine is in the front part of the tractor unit and there is a cabin with all the necessary auxiliary controls. The drive can be by electric motor or IC engine. The first bogie can move within an offset subframe whereas the second bogie is integrated with the chassis. USE/ADVANTAGE - Inexpensive replacement for having separate locomotive or engine built into first coach of railway train.
Patent DE-4210102-A1 (DE)
Title: Dual wavelength pulse-oximeter for determining oxygen@ content of bloodstream - has noise component of output signal not greater than Schrot noise of photodetector current
Inventor: RALL GERHARD DIPL ING
IPC: A61B5/0225
Filed: 1992-03-27
Abstract: The pulse-oximeter uses the relative absorption of light of differing wavelength in its transit through the tissue. Two LED's (LED 1,LED 2) in the sensor unit (1) alternately radiate light pulses of specific wavelength (lambda 1, lambda 2) which pass through the tissue (2) controlled by the timer outputs (phi 1,phi 2) and separated by a dead-space. A photodetector (PD) responds to the emergent light and its outputs (IPD) are changed to the voltages (UPD) in the converter (4) for synchronised (phi 1*,phi 2*) evaluation (UOUT) by the calculation unit (5). USE/ADVANTAGE - For determination of oxygen content of haemoglobin in blood supply to human tissue or for measurement of blood pressure. Non-invasive method of researching physiological parameters in-vivo during investigation of respiratory or circulating problems. Signal/noise ratio is maximised by signal handling/processing system.
Patent DE-4214202-A1 (DE)
Title: Plastic laminates with thermal expansion tailored to suit application - have all layers with rod-shaped molecules and arranged in pairs with their molecules orientated in planned pattern as required
Inventor: BOHEIM MANFRED DR
IPC: B29C45/16
Filed: 1992-04-30
Abstract: In a plastic laminate 2n layers of liquid crystal polymer with rod-shaped molecules are laid up together in n pairs; at least the preponderance of the rod molecules in the individual layers are orientation lines in each individual layer are at a set angle to each other and preferably at the same (or nearly) angle for all the pairs of layers. ADVANTAGE - The laminate has a coefficient of thermal expansion which can be adjusted individually to a set level. It is partic. suitable for use as casings for integrated circuits. The prodn. process is inexpensive.