baber/WOPTO huggingface dataset:
Patent DE-4007980-A1 (DE)
Title: Compsn. for removing encrusted residues from metal surface
Inventor: DINGESS JOHN A
IPC: C11D3/28
Filed: 1990-03-13
Abstract: A composition for removing encrusted residues from metallic surfaces, ferrous or non ferrous and includes, in combination, solvents for dissolving various organic deposits, the solvents comprising: from about 5% to about 80% by volume of a propylene glycol based solvent, said glycol based solvent being selected from the group consisting of the aliphatic ethers of a propylene glycol and esters of the aliphatic ethers of a propylene glycol; from about 5% to about 35% by volume of an alkyl pyrrolidone; from about 1% to about 12% by volume of an alkanolamine; and water. Aromatic or diphatic or diphatic hydrocarbons may also be present. and the composition may also contain an aliphatic acid blend. The propylene glycol based solvent may be propylene glycol monomethyl ether acetate, propylene glycol t-butyl ether, dipropylene glycol methyl ether, or mixtures thereof. The alkyl pyrrolidone may be N-methyl-2-pyrrolidone whilst the alkanolamine is preferably monoethanolamine. The compositions find particular use in cleaning automobile carburetters and pistons.
Patent DE-4008587-A1 (DE)
Title: Escapement mechanism for rod workpieces - has rod captured in recess of swinging sector with quickly adjustable recess size
Inventor: PFEIFFER PETER ERICH
IPC: B65G47/82
Filed: 1990-03-18
Abstract: The workpieces (4,5) are stacked on an inclined surface (16) in front of a recess (7,7') formed between the peripheral surfaces of a disk (11) and sector (10). The disk (11) on arm (13) and sector (10) can rotate together about axis (15). When rotated anti-clockwise through about 90 deg. by fluid power cylinder (24) the disk and sector carry a captured workpiece aorund the curved surface (50) onto the inclined outlet surface (51). Thus the workpieces are separated and delivered synchronously with the machine cycle. Different diameters of work can be accommodated by moving disk (11) relative to sector (10) about axis (15) to create a larger or smaller recess. USE/ADVANTAGE - Wide range of workpiece rod sizes can be accommodated without dismantling and re-assembling mechanism.
Patent DE-4013409-A1 (DE)
Title: Multistage condensation plant for removing wastes from exhaust air - plants removes solvents and volatile materials from air from the cleaning of tanks and road tankers
Inventor: TESCHLADE JOHANNES-BERNHARD DI
IPC: B01D53/00
Filed: 1990-04-26
Abstract: A multi-stage condensation plant removes solvents and odorous and volatile materials from hot damp exhaust air, in particular from air from the cleaning of tanks and road tankers. The plant consists of four stages. The exhaust air is :- 1. cooled to less than 60 deg.C in a condenser. 2. cooled using a heat exchanger to approx. 0 deg.C in a second condenser 3. heated to approx. 10 deg.C 4. passed through an adsorption medium. ADVANTAGE - Because the plant operates at medium temp. it is less expensive than plant which uses low temp. condensers, and it is inherently safer. The pollution load on the adsorption medium is lower.
Patent DE-4016144-A1 (DE)
Title: Container for enteral feeding of patient - has two parts connected by duct which can be closed by clip
Inventor: UFERMANN RUEDIGER
IPC: A61J1/00
Filed: 1990-05-18
Abstract: The container is for use in enteral feeding of a patient. The container is in the form of a bag which has an upper part (8) and a lower part (9) which are connected to each other by a duct (10). The lower part is fitted with an outlet tube (1). The lower part (9) can be shut off from the upper part (8) by means of a clip (10) which closes the duct (10) which normally connects the two parts (8,9). The bag enables a controlled quantity of food to be given to the patient. USE - Enteral feeding of patient in hospital.
Patent DE-4022200-A1 (DE)
Title: Electronic security lock e.g. for door - has microprocessor control and stored security code and servo drive for lock
Inventor: LUECK RAINER
IPC: G07C9/00
Filed: 1990-07-12
Abstract: The control unit (1) is battery (8) driven as is the reversible motor drive (7,9), to move the locking catch (10). The security code is stored in a memory (3) and is entered via a key pad (4) internally. An external keypad (13) is used to enter the code to release the catch. A display (5) shows the code as entered by the external keypad. The battery drain is minimised by only operating the electric motor when required, and by a time controlled switch-off of the control unit (4) when not used. USE/ADVANTAGE - All types of locks including on luggage. Programmable, secure, low battery drain.
Patent DE-4024076-A1 (DE)
Title: Sliding rail combination for vehicle seat - with provision of permanently attached stops on rails
Inventor: AMNER JOHN ARTHUR
IPC: B60N2/08
Filed: 1990-07-28
Abstract: Sliding rail guide for a vehicle seat in which the guided rail is U-shaped along its entire effective length, with parts of the rails (3 and 1) having permanently attached stops to prevent displacement. The guided rail (3) and the unguided rail (1) are inserted into the operating position by means of a swinging movement on one side. USE/ADVANTAGE - Seat rail arrangement which is light and stable with stops which reliably prevent forward or backward movement in the event of an accident.
Patent DE-4024257-A1 (DE)
Inventor: WITTENSTEIN MANFRED DIPL ING
IPC: F16D1/06
Filed: 1990-07-31
Abstract: A compact, reliable, clearance-free, positive connection for the components to be connected to the shaft (4) of a gear unit is to be provided. To this end, the end of the externally projecting shaft (4) is constructed in the following manner: (a) the outside diameter of the shaft (4) is tapered towards the end in a hollow cylindrical end region; (b) a clamping ring (5) with an oppositely conical internal diameter can be placed on the tapering end section of the shaft (4) and clamped to the shaft in such a way that the internal diameter of the end section of the shaft (4) can be slightly decreased; (c) in order to obtain a predetermined reduction in the internal diameter of the shaft (4), the clamping ring (5) can be axially tightened. The clamping ring may optionally act as a securing flange on the shaft (4) for a connecting unit (9).
Patent DE-4027559-A1 (DE)
Title: Laser cavity for optical pumping of laser active material -  uses light source to provide partial, alternating diffusely reflected and imaging reflected radiation
Inventor: RUF GERHARD DIPL ING
IPC: H01S3/093
Filed: 1990-08-31
Abstract: A laser cavity (10) has optical pump laser active material (12) and a light source (11) which is made partly, alternatingly, diffusion reflective and image refective by a reflector (10) of elliptic, parabolic or other cross-section which considerably increases the efficiency and homogenity of the laser. ADVANTAGE - Guarantees high emission efficiency and good homogenity.
Patent DE-4028239-A1 (DE)
Title: Formamidine sulphinic acid used as oxygen@ binder - pref. in aq. alkaline soln. esp. cyanide soln. contg. noble metal cyano complex for cementation with zinc@
Inventor: DIEHL MANFRED DR
IPC: C23F11/16
Filed: 1990-09-06
Abstract: The use of formamidinesulphinic acid (I) as O2 binder is claimed. USE/ADVANTAGE - (I) is claimed for use as O2 binder in aq. alkaline soln., esp. in a cyanide lixiviation soln. contg. noble metal cyano complex, before pptn. of the noble metal by cementation with Zn. It is very effective at low temp.(e.g. room temp.) and in the absence of heavy metal catalysts. It can be used in strongly alkaline solns.. In an example, 1 l aq. soln. contg. 200 ppm NaCN, adjusted to pH 10.5 with CaO, was treated at 20 deg C with 500 mg of (A) Na2SO3, (B) Na2SO3 + 10 ppm Cu2+, (C) Na2SO3 + 50 ppm Cu2+, (D) N2H4, (E) ascorbic acid, (F) hydroquinone as O2 binder (controls) or with (I) in a concn. of (G) 0.1, (H) 0.2, (J) 0.3, (K) 0.5, (L) 1.0 g/l. The O2 content of the soln. was (A, B, H, J) 8.6, (C) 8.3, (D) 8.1, (E) 8.4, (F) 9.0, (G, K, L 8.8 ppm initially; (A) 8.2, (F) 5.8, (C) 0.2, (D) 8.0, (E) 8.1, (F) 0.9, (G) 8.7, (H) 7.5, (J) 6.8, (K) 5.9, (L) 4.9 ppm after 1 min; (A) 8.1, (B) 5.1, (C) 0, (D) 7.8, (E) 7.5, (F) 0.2, (G) 7.7, (H) 3.5, (J) 0.5, (K) 0.3, (L) 0.1 ppm after 3 min.; (A) 8.2, (B) 5.1, (D) 7.8, (E) 7.7, (F) 0, (G) 6.5, (H) 0.5, (J) 0.1, (K, L) 0 ppm; after 5 min.; (G) 3.1, (H, J) 0 ppm after 10 min.; and (G) 0 ppm after 15 min..
Patent DE-4029206-A1 (DE)
Inventor: LEPPER WERNER
IPC: B64D47/06
Filed: 1990-09-14
Abstract: In a process and device for preventing bird-strikes on aircraft with at least one light source on the aircraft which is a discharge lamp and with a control device which varies the frequency of the light flashes generated within at least one cycle time, a simple and economic design is obtained which reduces the power losses, allocates a supply device to at least one light source consisting of at least one voltage transformer and at least one first capacitor and the voltage transformer provides a constant power at varying frequencies of the flashes generated.
Patent DE-4030475-A1 (DE)
Title: Electric motor control affording warning of impending overheat - comparing predetermined critical temp. entry with on-off control signal count correlated with obtd. thermodynamic characteristics
Inventor: OSUGA HIROSHI
IPC: H02H6/00
Filed: 1990-09-26
Abstract: A heating characteristics curve for the motor (1) in operation, and a cooling curve for the motor at a standstill, are obtd. in advance. Binary signals from the controller (3) to the driving circuit (2) are monitored (4) by a reversible counter (5), incremented by ''motor on'' and decremented by ''off'' signals. - The counting rates are correlated with the respective curves to obtain instantaneous temp. estimates for comparison (6) with a critical temp., and an alarm (7) is given if this is exceeded.
Patent DE-4031666-A1 (DE)
Title: Regulating device for controlling tension in rolled strip - includes lever connected to force measuring unit and hydraulic cylinder-piston unit
IPC: B21B37/50
Filed: 1990-10-05
Abstract: The strip tension during rolling is monitored and adjusted by a rotatable lever(6) which is connected to a force measuring member(7) using an elongation measuring strip. The lever is position adjusted by a cylinder-piston arrangement(9). The lever(6) works with a regulation frequency of 10Hz or more.  A lever block(10) is assembled on the exit side of a roll frame with a cylinder-piston(9) unit connected to the block on one side and to the lever(6) on the side. The arrangement(9) has a regulating value(11) and an hydraulic storage unit(12). The lever is connected to a rotation recorder(13) via axis(14). At least one measuring pinion(15) may be incorporated in the lever(16), pref. several arranged across its width. Each pinion is connected to a measuring roll(16) and a force measuring member(17) to make up an integral measuring device. ADVANTAGE - Accurate control of the strip tension during rolling is obtd..
Patent DE-4032666-A1 (DE)
Title: Electric hand-tool with two-part housing - has bearing bridge with bearing block enclosing rotor bearing and attached brush holder
Inventor: KUHN REINER
IPC: H02K5/14
Filed: 1990-10-15
Abstract: The electric bandtool has each housing half shell (2) receiving a bearing bridge (6) for the electric motor rotor bearing (3), with an Al bearing block (7) enclosing the latter, having a transverse slit (8) across its full cross-section. The bearing block (7) has an attached carrier (9) for the motor brush holder (10). An elastic damping element (14) is inserted between the bearing block (7) and each housing half shell (2) with bores for the fixing screws (15) securing the bearing block (7) to the housing half shell (2). ADVANTAGE - Simple length compensation between motor armature (4) and rotor bearing (3).
Patent DE-4034872-A1 (DE)
Title: Silver halide emulsion sensitisation for photographic materials - in which total amt. of sensitiser dye is added to emulsion with largest mean particle size, then other emulsions are added and heated
Inventor: SCHULZE MICHAEL
IPC: G03C1/12
Filed: 1990-11-02
Abstract: In spectral sensitisation of Ag halide emulsion mixts. with one or more sensitising dyes absorbing in the same spectral region, to the emulsion with the largest mean Ag halide particle size the entire emt. of sensitiser dye required for the mixing is added, the emulsion is held at a temp. between O and 15 deg. C above the pouring temp., the emulsions of the subsequent lower mean Ag halide particle sizes are added and the mixt. is held at 0-15 deg. C above the pouring temp.. USE/ADVANTAGE - Photographic silver halide recording materials are obtd. with enhanced sensitometric properties.
Patent DE-4036802-A1 (DE)
Inventor: FASBENDER HELMUT DIPL CHEM DR
IPC: H05K1/03
Filed: 1990-11-19
Abstract: The invention concerns a process, already known in the art, for the production of substrates coated on at least one side with copper. In this process, a former covered with copper foil is wound with a reinforcing filament, the filament winding is impregnated with solvent-free resin, and the resin is cured in the C-state. The invention proposes that a solvent-free epoxy-isocyanurate resin with a viscosity at the processing temperature of less than 1000 mPa.s and an NCO content greater than 20 % is used as the resin in this process.
Patent DE-4037798-A1 (DE)
Title: Analysing surface shape, esp. of non-rigid surface cornea of human eye - superimposing reflected, focussed measurement beam derived from coherent monochromatic beam onto reference beam to produce interference
Inventor: KASPRZAK HENRYK DR
IPC: G01B11/255
Filed: 1990-11-28
Abstract: A coherent monochromatic input light beam is divided into a measurement and a reference beam, each with plane wave fronts. The measurement beam is passed via a focussing device to the measurement surface which is closer to the focussing device than its focal length. The reference beam is directed at a reference surface from which it is reflected. The measurement beam reflected from the measurement surface is passed back through the focussing device and is superimposed on the reflected reference beam to produce a flat interference pattern which is detected and evaluated. USE - For accurate measurement of dilatation of eye.
Patent DE-4038219-A1 (DE)
Title: Roller for transporting sheets of paper - has basic part and coating, with grooves in bottom of which are recesses
Inventor: DANNEMANN GEORG-DIETRICH
IPC: B65H45/16
Filed: 1990-11-30
Abstract: The roller for transporting sheets or lengths of material, especially a folding drum, has a surface made of the same material as the basic part of the roller, with elastic, non-slip coatings inset into grooves in the roller base material. Easily deformable, hardening materials (7) are inserted between the grooves (2) of the basic part of the roller (1) and form a tight join with the elastic annular coatings (4). The bottom of the grooves (2) and/or coatings (4) have recesses (5, 8, 9) in them. USE/ADVANTAGE - The roller for transporting sheets of paper turns securely and improves the quality.
Patent DE-4102194-A1 (DE)
Title: Label prodn. without stamping out - by feeding at regular intervals rim-coated substrates and coverings plus intermediate inserts onto conveyor belts, and bonding them together
Inventor: AST HANS PETER
IPC: B31D1/02
Filed: 1991-01-25
Abstract: A label is produced with a substrate, a top insert which leaves the rim uncovered, and a covering which is over the insert and which is bonded to the uncovered rim at least in places; this covering is applied in accurate register with the substrate, allowing for the intermediate insert. The process preferably utilises a silicone-coated material. Successive substrates (4) are moved at intervals and loosely on a first conveyor belt (22) whilst corresponding top coverings (10) are loosely applied at the same intervals on to the second conveyor belt (24). The inserts (8) are fed in between the assemblies are moved to a bonding station (26) where the rims of the coverings (10) and those of the substrates (4) are firmly bonded together. The bonding station (26) can be arranged vertically or horizontally. The first belt (22) can be coated with a silicone to facilitate separation of the labels; alternatively it (22) can be coated with adhesive to adhere to the adhesive coatings on the coverings (10). The belts (22,24) are perforated to enable the applied layers (4,10) to be correctly orientated but other methods, e.g. electronic can be used alternatively. ADVANTAGE - The method dispenses with any stamping out stage and hence simplifies the procedure.
Patent DE-4109614-A1 (DE)
Title: Gas inlet pipe to house - coated with impervious epoxy] resin foam
Inventor: FANELSA KURT
IPC: F16L5/02
Filed: 1991-03-23
Abstract: The inlet pipe, partic. for gas, into a house is pref. of steel at least at the wall, and is enclosed by cladding in the radial direction, being connected between the branch off of the main and the indoor system. The cladding is formed by a coating of epoxy resin/foam, impervious to gas and liq. The coating can have a Bisphenol A or F base, and hardening agents with a base of aliphatic and/or cycloaliphatic amine. The coating can be profiled on the outside and can be 1 to 2cm. thick. It can widen in a cone at one end to form a centring device, and can have one or more radial stops to prevent it being pulled out. ADVANTAGE - Prevents leakage into the house, being of low cost and easy to instal.
Patent DE-4114448-A1 (DE)
Title: Remote transmission link between two data processing units - provides optical transmission in one direction with simultaneous transmission in other direction via inductive loop
Inventor: LATSCHBACHER KLAUS
IPC: H04B5/00
Filed: 1991-05-03
Abstract: The communication link is established for the transmission of data between a portable data logger (10) and a main system (15). In one direction the transmission is made between an optical transmitter (13) and a receiver (16). In the other direction the transmission is made using an inductive path between a transmitter and receiver (17,14). The use of the optical path and inductive path allows simultaneous transmissions in both directions. Typically the optical transmission is initiated by an infrared diode and the inductive transmission by an electromagneto device. ADVANTAGE - Avoids interference between bidirectional transmission paths.
Patent DE-4122073-A1 (DE)
Title: Photograph frame back - which has movable U=shaped strut enclosing stop-strip and both joined to fastening, with fold lines, holes and side extensions
Inventor: REP ANTON
IPC: A47G1/06
Filed: 1991-07-04
Abstract: The picture-frame back (1) has a movable, U-shaped strut (2) enclosing a stop-strip (3). The strut and stop-strip are joined to a fastening (4) by hinge-type fold-lines which are spaced apart on the two U-arms (10). In its position for use, the strut slopes towards the frame back. The end of the stop-strip fits into one of two holes in the strut, so that the two side extension of the stop strip rest in the two U-sides of the strut. The strut, stop-strip and fastening are punched out of a plate-type stand. ADVANTAGE - The parts of the photograph, frame with movable strut rest against the back without impairing its functioning.
Patent DE-4123777-A1 (DE)
Title: Attachable track-mounted cutting tool - which can be advanced laterally on sled which is mounted on track
Inventor: LINDNER KARL
IPC: B28D1/18
Filed: 1991-07-18
Abstract: The attachable cutting tool (2) is mounted on a sled (4). The sled is mounted on a tracked vehicle system (1). The cutting tool is initially positioned such that the cutter (13) is flush with the inner edge of the track. When cutting, the head is advanced on the laterally moving sled. USE/ADVANTAGE - Retractable cutting head allows movement of mounting sled directly alongside work surface.
Patent DE-4126731-A1 (DE)
Title: Semi-active suspension for vehicle - has filter to produce bandwidth of relevant frequencies and has displacement sensors on each wheel support
Inventor: ECKERT ALFRED
IPC: G05D19/02
Filed: 1991-08-13
Abstract: Each wheel support sensor is linked to a filter (3) which removes frequencies below a lower level corresponding to 0.1 and 0.5 times the resonant frequency of the sprung mass and an upper frequency corresponding to 1.2 to 2 times the wheel resonant frequency. The transfer function of this resitricted frequency range is near linear. Only displacement sensors are required on each wheel. An empirical control program is established using a 1/4 scale model on test roads. This allows correction for the fitting to the actual vehicle. ADVANTAGE - Simplified suspension control uses less sensors.
Patent DE-4135524-A1 (DE)
Title: Chrome plating of zinc@, cadmium@ and their alloys - using aq. soln. of chromium (III) oxalate complex, at acidic pH to form blue corrosion-resistant coating
Inventor: KLOS KLAUS-PETER DIPL CHEM DR
IPC: C23C22/46
Filed: 1991-10-28
Abstract: Chrome plating of Zn, Cd and their alloys using a soln. contg. at least one Cr (III) complex, the novelty of the process being that an aq. soln. of Cr(III) oxalate complexes, pH 1.2-3.0, is used. Pref. the soln. contains one or more complexes of formulae: Cr(C2O4)X(H2O)6-2xn (3-2x)+An-3-2x in which x is above 0 up to 1.5, A = Cl-, Br-, I-, NO3(-), SO4(2-), PO4(3-), and n = valency of anion A, or Cr(C2O4)X(H2O)6-2xm (3-2x)+Km+3-2x in which x is above 1.5 up to 3, K = H+, Li+, Na+, K+, NH4(+), and m = valency of cation K. The molar ratio of oxalate:Cr(III) lies between 0.1 and 3.0, more specifically 2:2. The soln. contains Cr(III) nitrate, chloride, bromide, iodide, sulphate or phosphate together with oxalic acid or lithium, sodium, potassium, or ammonium oxalate, giving a Cr(III) oxalate complex concn. of 0.1-50 g/l. The chrome plating soln. used in the process is also claimed. USE/ADVANTAGE - Zn, Cd and their alloys are endowed with corrosion-resistant properties
Patent DE-4137187-A1 (DE)
Title: Chain-saw with ring-shaped front handle - has plastics tube fitted over handle mounting bush o catch chain in event of chain breakage
Inventor: DOERAGRIP FRIDOLF ANDERS GUSTA
IPC: B27B17/00
Filed: 1991-11-12
Abstract: The chainsaw has a ring-shaped front handle (10) which is attached to the housing by a rubber bush to damp out the screw vibrations. The bush has a central hole for a fixing bolt and is enclosed in a short piece of tube made of plastics. In the event of a breakage of the chain or if the chain becomes detached from the guiding or driving sprockets this plastics tube catches the chain and prevents damage to the saw teeth. USE/ADVANTAGE - Chain saw with system to prevent damage to the saw teeth in the event of a chain breakage.
Patent DE-4140029-A1 (DE)
Title: Reducing TV signal tone carrier frequency amplitude - splitting input signal into two partial TV signals and subjecting to modification before recombining to obtain cable TV signal
IPC: H04N7/045
Filed: 1991-12-04
Abstract: The method allows the received terrestrial television signal (tFS) comprising an AM image carrier frequency and a FM tone carrier frequency to be converted into an input IF television signal (FSe), which is then divided into two partial IF television signals (TFS1, TFS2). The AM image carrier frequency in one partial IF television signal (TF2) is suppressed, the amplitude of the FM tone carrier frequency (TT) being adjusted and combined with the second partial IF television signal (TFS1) to provide the output IF television signal (FSa), subjected to an amplitude reduction, before converting back into a channel signal (US) used for cable television. USE - Converting terrestrial TV signal into cable TV signal.