baber/WOPTO huggingface dataset:
Patent DE-4110281-A1 (DE)
Title: Ventilation grid with parallel bars - is formed by stamping from sheet of metal or plastics
Inventor: MUELLER GOTTFRIED
IPC: F24F13/08
Filed: 1991-03-28
Abstract: The grid for the air inlet or outlet of a ventilation system has a rectangular frame to which parallel bars of U-shaped cross-section are attached. The grid is made from a sheet (4) of metal or plastics in which parallel slots (21) are formed by stamping. A short slot is formed at each end of each slot.  These short slots are at right angles to the slots and a narrow neck (16) is formed between the ends of the adjacent short slots. A rectangular strip (15) is thus formed which is joined to the body of the sheet (4) by a neck at each end. The rectangular strip is then bent to form the U-section (5) which forms a bar of the grid. USE - Ventilation grids.
Patent DE-4111666-A1 (DE)
Title: Shot or sand blasting operating system - consists of rotors which roll around central gear to accelerate shot or sand
IPC: B24C5/06
Filed: 1991-04-10
Abstract: A mechanism for imparting a high velocity to a jet of shot or sand-blasting material consists of two rotors (4) mounted on the opposite ends of a rotating arm (3). Each rotor is attached to a toothed gear wheel which meshes with a fixed central gear (1) so that the gear wheels roll around the central gear as the arm (3) rotates. A point on the pitch circle of an outer gear describes an epicycloid (10) relative to the fixed central gear. The shot or sand blasting material is fed into pockets formed on the periphery of each outer gear. The material is introduced at the point (9) at the instant that its velocity is zero or very close to zero. The material then travels along the epicycloidal path (10) with continuously increasing velocity until it is ejected at the point (12). USE/ADVANTAGE - Shot or sand blasting machine with a gradual acceleration of the material from zero to maximum velocity.
Patent DE-4113655-A1 (DE)
Inventor: BLUM RAINER
IPC: C08K9/06
Filed: 1991-04-26
Abstract: The use of a mixture of ô
 
  from 5 to 95% by weight of an azidosilane of the formula
 N3-R<3>-Si-R<1>n(OR<2>)3-n I
 in which R<1> is a C1-C3-alkyl, phenyl, benzyl or tolyl group, R<2> is a C1-C4-alkyl, C2-C4-alkoxyalkyl, phenyl or benzyl group, R<3> is a C1-C8-alkylene group which may be interrupted by an oxygen atom, sulphur atom or -(N-R<4>) group in which R<4> is a hydrogen atom or a methyl, ethyl or phenyl group, and n is 0, 1 or 2, and 
  from 5 to 95% by weight of an aminoalkoxysilane of the formula
 H2N-R<5>-Si-R<6>m(OR<7>)3-m II
 in which R<5> is a C1-C6-alkylene, C5-C6-cycloalkylene or -arylene group which may additionally be substituted by one or two C1-C3-alkyl groups, and R<6> and R<7>, independently of one another, are a C1-C6-alkyl or C5-C6-cycloalkyl group, which may likewise additionally be substituted by one or two C1-C3-alkyl groups, and m may be 0, 1 or 2, 
 as adhesion promoters (coupling agents) between polycondensates which contain, as structural units, heterocyclic ring systems containing N- atoms, or precursors of these polycondensates, and inorganic substates.
Patent DE-4116988-A1 (DE)
Title: Controlled supply for printing press ink trough - has recirculating feed with integral viscosity monitoring and top-up
Inventor: LINDEN ALFRED
IPC: B41F31/02
Filed: 1991-05-24
Abstract: The ink is taken from a reservoir by the motor (5) driven inking roller while a screw feed (4) at one edge of the trough ensures even mixing. A pumped (10) feed (9) takes ink from the trough and circulates it through a closed loop via a pair of 3-way valves (11,13) back into the trough, or diverts the flow through a viscosity monitor (22) and back into the trough. A level control operates a top-up (16) which is ducted into the recirculating feed, while a solvent feed (24) is ducted into the viscosity monitor. The viscosity monitor measures (20) the time delay between the fluid meniscus moving between two sets of vertically displaced contacts. The solvent feed also cleans the monitor. The recirculation ensures even mixing as well as maintaining the required temperature. ADVANTAGE - Even paint/ink quality, simple top-up control.
Patent DE-4118403-A1 (DE)
Title: IC engine crankcase with two separate hollow cavities - uses casting cores connected into one unit by core connecting beam
Inventor: ALTDORF JOACHIM
IPC: F16M1/021
Filed: 1991-06-05
Abstract: The separate hollow cavities form water chambers and oil-wetted chambers and the casting cores for the water chambers (1) have a first attachment (3) and the cores for the oil chambers a second attachment (4) with the two attachments connected by the beam (5). The cores can be made integral with the beam or as separate units which are then connected. The core connecting beam (5) can be set at the side of the housing and serve as an outer core for same. USE/ADVANTAGE - When the casting mould for an IC engine crankcase is closed the cores are accurately positioned and there is no leakage between the individual hollow cavities.
Patent DE-4120763-A1 (DE)
Title: Free-standing noise-protection wall - comprises angled sections of solid plastics supporting each other to form strong structure
Inventor: BECK ERICH DIPL ING
IPC: E04B2/74
Filed: 1991-06-24
Abstract: The free-standing wall (1) is used for concealment or noise-protection. It comprises plate sections at an angle to each other, and of solid or recycled plastics material. The plate sections can be offset from each other in the vertical direction and also secured in the ground. Chambers filled with ballast can be incorporated in the wall, also transverse stiffening members forming seats. The chambers can also contain earth, for deep-rooted plants. USE/ADVANTAGE - Strong, stable and low cost concealment or noise protection wall.
Patent DE-4129059-A1 (DE)
Title: Light emitting diode circuit including energy storage capacitor - charges capacitor during half-cycles from AC supply, and discharges through diodes of opposite polarity
Inventor: HELMERS GERALD
IPC: H05B44/00
Filed: 1991-09-02
Abstract: The LEDs (6,7) supplied with current from an AC source (1) via an amplifier (2) and bias restorer (3) are arranged in two antiparallel branches (4,5), jointly connected to earth (9) via a storage capacitor (8). During one half-cycle of the AC waveform, one branch (4) of diodes (6) is illuminated while the capacitor (8) becomes charged. The other branch (5) of diodes (7) is powered by discharge of the capacitor (8) during the alternate half-cycle. ADVANTAGE - E.g. for connection of up to 16 LEDs to vehicle 12 V supply. Uniform brightness is obtained from LEDs in both branches irrespective of differences of conduction voltage among individual diodes contributing to unequal overall branch impedances.
Patent DE-4133581-A1 (DE)
Title: Cleaning exhaust gases from plasticising assemblies - by removing dust particles, fixing and neutralising acid gases, eliminating aerosol particles and removing gaseous cpds.
IPC: B01D53/72
Filed: 1991-10-10
Abstract: To dispose of mixed plastics waste, acids and vapours are produced by the breakdown of mixed plastics, which enter the exhaust effluent gases. Dust particles are first removed from the exhaust and acid gases are fixed and neutralised. Aerosol particles are then eliminated; and gaseous cpds. are then removed from the effluent air by adsorption. USE/ADVANTAGE - The process enables the maintenance intervals for air cleaning assemblies to be extended combined with more effective removal of the effluents from air. The process reduces the consumption of active carbon partic
Patent DE-4135237-A1 (DE)
Title: Piston and connecting rod for IC-engine - facilitates transfer of oil from duct in connecting rod to cooling chamber in piston
Inventor: HAEFNER REINHARD
IPC: F02F3/22
Filed: 1991-10-25
Abstract: The central oil duct is connected, via a ring groove (10) in the end of the connecting rod, to a radial bore (11), which leads into an oil-distributor (7), connected to a ring shaped cooling chamber (14) in the top of the piston (6). The oil-distributor may include a groove (13) on the outside of the connecting rod end (4). The central oil duct (9) may contain a nozzle favouring flow towards the piston. USE/ADVANTAGE - In internal combustion engines, especially Diesel engines. A supply of lubricating oil for cooling the piston is ensured.
Patent DE-4135873-A1 (DE)
Title: Detecting position and dynamic parameters e.g. of commutator motor or hydraulic pump - evaluating e.g. ripple current superimposed on periodicity signal which characterises system
Inventor: KESSLER MICHAEL
IPC: H02P23/16
Filed: 1991-10-26
Abstract: The method involves evaluating a signal from a drive unit, an energy transmission path, or an adjusted object, that has a fundamental periodicity which is characteristic of the system. A signal superimposed on the periodicity signal is also evaluated. The superimposed signal may be a non-periodic analogue signal, or with a period and/or amplitude which differs from the fundamental periodicity signal. The drive unit may be a commutator motor or hydraulic pump, and the electrical current or pressure ripple the characteristic signal. USE/ADVANTAGE - For vehicle electric window or sliding roof drives. Increased resolution without additional sensors.
Patent DE-4138419-A1 (DE)
Title: Precise alcohol concn. measurement - uses readings of optical extinction and temp. and density
Inventor: KOUKOLITSCHEK KARL DIPL ING
IPC: G01N9/12
Filed: 1991-11-25
Abstract: To determine the alcohol content in fluids, especially consumables such as wine or beer or spirits, the optical extinction, temp. and density of the fluid are measured. The values are taken to calculate the alcohol content. Pref. a precision hydrometer is used to measure density, or a flexural oscillator is used to allow direct measurement in the measurment cell. Two beam units are used, with different wavelengths, with a measurement detector for the beam affected by the measurement cell and a reference detector for the unaffected beam. The microcontroller uses a polynomial function to give an experimental reading to be stored to give an alcohol concentration from the measured extinction and the actual temp. The density correction is produced experimentally from a function, such as wine from a number of different supplies, and then stored in the microcontroller as a polynomial function. ADVANTAGE - The technique allows precise measurements to be taken by unqualified staff, where readings of ethanol in Vol% or g/litre can be made in less than one min., with an accuracy of better than +/- 0.1 Vol% ethanol. The system can be used by small companies, without the expense of outside analysis, with direct measurement without reagents and in small samples.
Patent DE-4139807-A1 (DE)
Title: Drum brake with manual adjustment of regulator wheel - has screw driver tool engaging through access hole onto tool of wheel
Inventor: ROMMEL EGON
IPC: B25B27/00
Filed: 1991-12-03
Abstract: The drum brake (1) for a motor vehicle wheel has brake cylinders, brake shoes (4), brake linings and a dust cover (10) as well as a regulator wheel (2) which can be manually adjusted by a screw driver tool (11) which is passed through the opening (9) in the dust cover (10) and brought into engagement with at least one tooth of the wheel (2). The regulator wheel is then displaced by manually applying a side force onto the screw driver tool. The opening in the dust cover is placed in the sight area of the operator. ADVANTAGE - Easy access for adjustment.
Patent DE-4142032-A1 (DE)
Title: Radial piston pump for use on vehicles - has pressure responsive check valve in each fluid outlet chamber
Inventor: TEUBLER HEINZ
IPC: F04B1/04
Filed: 1991-12-19
Abstract: The radial piston pump is for use in a vehicle. It has delivery pistons (5) moving to-and-fro in bores (7) which deliver fluid under pressure through an outlet (17) in a cover (15) which closes each bore to an outlet chamber. It has a check valve for the outlet with a valve element which covers the outlet. The outlet (17) is so formed that the check valve opens as soon as the pressure of the delivered fluid rises slightly in relation to the pressure which prevails in the outlet chamber. USE/ADVANTAGE - Radial piston pump in vehicle in which pressure pulsations and the associated noise are reduced.
Patent DE-4142749-A1 (DE)
Title: Desalinating appts. for sea or brackish water - has electrolysis chambers interlinked with ion conductive dividing plates made of sand and cement
Inventor: LORBEER BERND DR RER NAT DR ME
IPC: C02F1/46
Filed: 1991-12-23
Abstract: The desalinating appts. for sea and brackish water, uses electrolysis with electrolysis chambers interlinked by ion conductive plates made from cement and sand. The electrolysis chambers are interlinked by capillaries for the ion channels with capillary forces at required levels and Na+ and Cl- channels. The electrolysis chamber dividers can also be diaphragms, with ion conductivity, but which prevent reverse diffusion of the reaction product. The electrodes can be integrated into the diaphragms such as a grid. The electrode chambers have very thin diaphragms, with high surface flows, and small gaps between the electrodes and diaphragms to reduce the contact surfaces between the reaction solution and the diaphragms. H2 and Cl2 are developed during electrolysis. The power supply is not only DC, but also rectified AC as a pulsed DC. USE/ADVANTAGE - The assembly is for decentralised use for individual use, where water pipes are to be fed with pure drinkable sea water or only partly desalinated water. The appts. requires low voltages for operation, such as DC supplies or solar energy.
Patent DE-4204018-A1 (DE)
Title: Sliding bearing with bore-fitted bearing shell - has axially extending gap, formed between bore and bearing shell at least one end of bore
Inventor: WEINBERGER UWE DIPL ING
IPC: F16C17/10
Filed: 1992-02-12
Abstract: A sliding bearing (1) has a bearing shell (5) fitted in a housing bore (10). At at least one end (12) of the bore, there is an axially extending gap (17) between the bore and the bearing shell, allowing the bearing shell to flex radially to release loads. ADVANTAGE - Local high loads are balanced out, without increasing the bearing shell thickness.
Patent DE-4208233-A1 (DE)
Inventor: HUNDEGGER HANS
IPC: B27C9/04
Filed: 1992-03-14
Abstract: The machine tool has a roller conveyor (2) and a track (7). Movable on the track (7) is a drag device (6) which conveys the workpieces (4) one after the other to the individual machining units (1, 15) according to a program. Provided in the entry area of the roller conveyor is an additional conveying device (3) which is effective when the workpiece (4) moved by the drag device (6) has cleared the first machining unit (1). In this way, the front end (5) of the next workpiece (4) can already be machined when the other machining units (15) are still working the preceding workpiece. Once the next workpiece is machined at the front end (5), the additional conveying device (3) ceases to operate and the drag device (6) receives this workpiece. <IMAGE>
Patent DE-4214057-A1 (DE)
Title: Transport device for moving wooden beams - has lever attached to towing member and pressed against or raised from surface of beam by torque force produced by swivel piston.
Inventor: SCHMIDLER RICHARD
IPC: B65G25/02
Filed: 1992-04-29
Abstract: The torque (27) is introduced about the swivel axis (26) of the lever (23) so that the contact pressure end (31) of the lever is raised and lowered in a position offset behind the swivel axis against the advancing direction (25). This end (31) has a large-surface movable bearing (28) set above a cushion (34). The cushion can be detachably fixed at the pressure end of the lever by an assembly plate (35). It has a surface producing good adhesive friction and is pref. made of a rubber-like material which has little compressibility. USE/ADVANTAGE - Wooden beams are moved without danger of canting and without damage being caused by positive engagement.
Patent DE-4224117-A1 (DE)
Title: Cutting machine for ceramic, earthenware, concrete etc. workpieces - has top and bottom parts for work clamping, with work facing cushions and cutting blades
Inventor: LOEWER DIETRICH
IPC: B28D7/04
Filed: 1992-07-22
Abstract: The work (5) to be cut is clamped between the machine (1) top (2) and bottom part (3). On the latter sides, facing the work, are fitted pressure cushions (9,24). On the same parts are fitted cutting blades (19,30), arranged in correspondence to the work cut edges. Pref. the top and bottom parts are interconnected by at one side by hinges (4). On the opposite side are fitted closure hooks (6). Each cutting blade may form a part of a plunger (18,29), moving in a hydraulic ram (12,22). Coupled to a pump via pipelines (20,31) for pressure control. USE/ADVANTAGE - Simple design for reliable and precise cutting of ceramic, earthenware, concrete etc. workpieces without a motor drive.
Patent DE-4227278-A1 (DE)
Title: Swivelable holding clamp for double glazing pane - has set frame longitudinal brackets extending only partly from front bracket in common clamping plane
Inventor: KLEMT ARTHUR
IPC: E06B7/084
Filed: 1992-08-18
Abstract: On the clamp top side is a glass pane (1) holding frame with two longitudinal brackets (3) in clamping plane (C-C), forming a retention frame for the glass pane. A holding bracket (5), coupling the longitudinal ones, is bent upwards from the clamping plane, while a rear holding socket (6) is also provided. The longitudinal brackets extend from the holding bracket in the clamping plane only to a point, spaced (a) from the socket. These each merge into a downwards extending strap bracket (12). The rear socket is also formed at a further strap bracket (13). The holding frame and the longitudinal brackets are resiliently coupled by the strap brackets. USE/ADVANTAGE - For opening and closing horizontally located double glazing panes, with rapid and simple assembly and long service life.
Patent DE-4230902-A1 (DE)
Title: 5,6-benzo-alpha-pyrone for chronic kidney insufficiency treatment - partic effective if combined with a protein restrictive diet.
Inventor: CHRISTOPH HENNING DR
IPC: A61K31/37
Filed: 1992-09-11
Abstract: Use of 5,6-benzo-alpha-pyrone (coumarin) is claimed for the treatment of chronic kidney insufficiency, in particular of glomerular and tubular-interstitial fibrosis. USE/ADVANTAGE - Coumarin inhibits or cures the pathogenic processes of chronic kidney insufficiency. It inhibits the excessive formation of reactive oxygen intermediates and supports the mesangial tissue clearance by fast degradation of the protein-like substances that has been deposited there and thereby preventing fibrosis of the glomerular appts. Current treatment of chronic kidney insufficiency comprises a protein-restricted diet and the admin of medicaments for glomerular hypertension and the lowering of blood pressure. This only shows the nephropathy for half a year to three quarters of a year whereas the admin of coumarin slows this process substantially further.
Patent DE-4234141-A1 (DE)
Title: Digital circuit for addition and subtraction e.g. for cash till - has arrays of flip=flip stages providing inputs to processing circuit, with numbers input from right to left so that digits with value one are keyed in first
Inventor: MERKLE PAUL
IPC: G06F7/50
Filed: 1992-10-09
Abstract: The digital electronic control circuit has an arithmetic stage that can be switched between addition and subtraction modes. The circuit receives inputs in the form of a series of four bit binary numbers and these are handled in input loading stages. The input stages are in the form of the arrays of flip-flops (16, 18) that combine with a further array. The flip-flops receive serially-entered numbers and outputs connect with the processor. ADVANTAGE - Avoids need for shift register.
Patent DE-4235909-A1 (DE)
Title: Mono to stereo changeover switch - has differential amplifier with transistor whose base is supplied with voltage lying between lower and upper levels of pulse signal
Inventor: FRIESEN LEO DIPL ING
IPC: H03K17/62
Filed: 1992-10-23
Abstract: The change-over switch includes a differential amplifier circuit which has a contact (TU) for an operating voltage, and a contact (T1) for a switchable constant current source. A first input (E1) provides a first pulse signal with auxiliary carrier frequency. A second input (E2) provides a second pulse signal phase-shifted 180 deg. w.r.t. first pulse signal. Two outputs (A1, A2) provide two auxiliary carrier signals. A transistor (T3) has its collector connected to the operating voltage and its emitter connected to the constant current contact. A voltage (Um) is supplied to the base which lies between the lower and upper levels of the pulse signal. ADVANTAGE - Components for differential amplifier may have generous tolerances, while providing perfect stereo coding with DC offset in stereo operation practically null.
Patent DE-4238492-A1 (DE)
Inventor: HAAS THOMAS DR
IPC: C07C45/64
Filed: 1992-11-14
Abstract: The invention relates to a method for the simultaneous preparation of 1,2- and 1,3-propanediol from glycerol. 1,2-Propanediol is customarily prepared from propylene oxide, 1,3-propanediol by hydration of acrolein with subsequent hydrogenation. The process according to the invention comprises the reaction stages (a) dehydration of glycerol by passing a gaseous glycerol/water mixture containing 10 to 40% by weight of glycerol at 250 to 340@C over a solid catalyst having an Ho value (Hammett's acid function) of less than 2, preferably between -3 and -8.2, (b) hydration of the acrolein contained in the reaction mixture of stage (a) and (c) catalytic hydrogenation of the reaction mixture containing the 3-hydroxypropionaldehyde and hydroxyacetone of stage (b). Two useful substances, namely 1,2- and 1,3-propanediol, can simultaneously be obtained in a high total yield from glycerol in a simple process.
Patent DE-4242378-A1 (DE)
Title: Impact type matrix print head - has cross-sectional steps in flat plate parts of housing to reduce acoustic noise emissions
IPC: G10K11/16
Filed: 1992-12-08
Abstract: The print head has a housing (2) contg. movable print elements with electromagnetic drives operated at frequencies of about 2 kHz or higher. Each print element can be moved from a rear rest position into a forward print position and vice-versa. Each noise radiating, flat component (4) of the housing has at least one linear, secant-shaped cross-sectional step (6,6b) to reduce noise. The step is positioned taking into account the mounting points of the part and at places of large natural resonance amplitude of the part. USE/ADVANTAGE - Impact type matrix print head is designed for at least 30% reduction in acoustic noise emissions.
Patent DE-4243992-A1 (DE)
Title: Top-loading electric toaster
Inventor: FRAUNHOFER ALFRED DIPL ING
IPC: A47J37/08
Filed: 1992-12-23
Abstract: The toaster has side heating elements (94, 96) in front of reflectors (74, 76). There is also a pair of central elements (40, 42), also with reflectors (140, 142). The centre cradles (18, 20) for the bread slices are pushed downwards when loaded. This movement causes the side heaters to tilt inwards on rods about a horizontal axis, but remaining in a vertical plane. The cradles have tangs (164, 166) which hook into openings in the lower part of the side reflectors when this toasting position is assumed. The elements have protective non-conducting covers, like quartz glass. There is a protective grill (78, 80) across each reflector.