baber/WOPTO huggingface dataset:
Patent DE-4023202-A1 (DE)
Title: Defective ferrite spinel magnetic material - heat treated to optimise and stabilise magnetic or magneto=optical properties
Inventor: ROUSSET ABEL CLAUDE MARIE
IPC: H01F1/11
Filed: 1990-07-20
Abstract: A magnetic material, consisting of a ferrite with a defective spinel structure based on iron (III) oxide, cobalt oxide and at least one of further metal oxide, opt. with one or more dopants, is claimed, the ferrite being produced from a defective ferrite spinel by (a) carrying out successive heat treatment steps, opt, in a magnetic field, at increasing temps. ranging from room temp. to a temp. below the gamma/alpha transformation temp. the steps being sepd. by 10-50 deg.C intervals and having at least 0.5 hrs. duration, (b) cooling the compsn. to ambient temp. after each step and carrying out measurement of at least one magnetic or optical property (coercive field strength, permanent magnetisation, coercive field strength of the permanent magnetisation, hysterisis curve width, Faraday rotation and/or Kerr rotation) prodn. of the curve(s) of property variation with temp. determination of the characteristics temp(s) of heat treatment corresponding to a max. of the measured property and selection of materials which show at least one measured property maximum for a heat treatment temp. above 80 deg.C. but no maximum between ambient temp. and 80 deg.C. (C) heat treating the selected material at a final heat treatment step temp. above the temp. corresponding to the greatest property maximum and corresponding to the greatest property maximum, and (d) slowly cooling the material to ambient temp. Prodn. of the magnetic material involves, (a) using a defective or non-defective ferrite spinel as starting material, the non-defective ferrite spinel being initially heat treated in an oxidising atmos. to form a defective ferrite spinel of the desired compsn. and (b) carrying out at least one process step comprising heat treating the starting material at 5-15 deg. C below the characteristic heat treatment temp. determined in (A), (b) to achieve a directional order characteristic and then cooling to ambient temp. USE/ADVANTAGE - The material is useful as a high densit
Patent DE-4026163-A1 (DE)
Title: Hydraulic circuit for power assisted steering - has auxiliary pump which runs at speed corresponding to vehicle speed
Inventor: EMORI YASUYOSHI
IPC: B62D6/02
Filed: 1990-08-15
Abstract: The power assisted steering system of a motor vehicle has a main pump (P) which delivers hydraulic fluid through a control valve CV(15) to the servo cylinder (P/C).  The reaction pressure in the servo cylinder (P/C) is controlled by means of an auxiliary pump (subP) which is connected to the hydraulic reaction device (20) and to the variable throttling orifices (5,6). The auxiliary pump (subP) operates at a speed corresponding to the vehicle speed and the hydraulic reaction device (20) has an input shaft which controls the effective cross-sectional areas of the throttling orifices (5,6). USE - Power assisted steering for road vehicle.
Patent DE-4030733-A1 (DE)
Title: HF sealed housing for communications system -  has pressed in bolts in dividing walls to receive filter components
Inventor: LAMPERT ALEXANDER DIPL ING
IPC: H05K9/00
Filed: 1990-09-28
Abstract: The high frequency sealed housing has base unit with side walls (3) and internal compartments created by separating walls (5), through which components such as filters, capacitors etc (11) are to pass. Holes are formed in the base (7) that allow bolts (8) to be pressed into position. Each belt has a transverse threaded hole to receive the element. Each element has a flange (12) that presses against a flat surface (10) to maintain the seal. ADVANTAGE - Maintains HF seal when components pass through walls in housing.
Patent DE-4031164-A1 (DE)
Title: Adaptor for connecting pipes to pump -  includes system for aligning adaptor with pump housing
Inventor: MATERNE THOMAS
IPC: F04D29/42
Filed: 1990-10-03
Abstract: Adaptor (1) for the connejction of pipes to a pump (2) having an inlet and an outlet which open into a flat wall of the pump housing (9). The adaptor has a flat side wall (5) in which the openings (11, 12) are arranged to align with those in the pump, with an inlet (7) and an outlet (8) on the other side (6) and a distributor element (13) inside the adaptor to vary the connections as required. USE/ADVANTAGE - Adaptor which is easily attached to a pump to give a variety of connection options.
Patent DE-4032864-A1 (DE)
Inventor: DAHMS WOLFGANG DIPL ING
IPC: C25D3/38
Filed: 1990-10-13
Abstract: The invention concerns an aqueous acid copper-electroplating bath and the use of the bath for the electrolytic deposition of copper.
Patent DE-4034127-A1 (DE)
Title: Prevention of impact noise of moving parts of pressure limiting valve - by fitting rubber ring between two parts
Inventor: CEZANNE RUDOLF DIPL ING
IPC: B60T8/26
Filed: 1990-10-26
Abstract: A hydraulically actuated brake has the master cylinder (13) connected to the brake cylinder (14) by a pipe (12) which is fitted with a pressure regulating valve (3). The pressure regulating valve is connected to the head (2) of a spring-loaded piston (1) which slides in a housing (4). The noise generated by the impact of the piston flange (8) on the housing flange (7) is damped out by means of a rubber ring (9) fitted between the two flanges. The axial force of the impact compresses the ring axially which causes it to expand radially. The ring is fitted in a recess (10) in the flange (7) so that its radial expansion is limited by the initial clearance (11) between the ring and the wall of the recess. USE/ADVANTAGE - Reduction of impact noise between piston and housing. The limiting of radial expansion of the ring prevents permanent distortion of the ring.
Patent DE-4036104-A1 (DE)
Title: Solid landfill securing system - consists of drainage to be system with perforated casings and concentric tubes
Inventor: PAURAT FRIEDRICH WILHELM
IPC: E02D31/00
Filed: 1990-11-13
Abstract: The system secures a landfill site etc. against escape of leakage water. It consists of a service tunnel under, or at a suitable depth, beside the fill with devices extending at angles to above ground on one or both sides, to collect the water. The devices have a sealing skin. A drainage tube system (4) is used which consists of casings (5) and concentric tubes (6). This is located under and/or above the sealing skin, as used in oil drilling operations. The casings have water inlets, the tubes have bores in the walls and may be used for maintenance of the casing interiors and the water inlets. The collected water drains to the service tunnel and individual drainage tubes can be inspected separately. USE - Drainage system for landfill site.
Patent DE-4039206-A1 (DE)
Title: Drive mechanism with first and second drive pieces - has continuous belts ,one toothed and one flat, with drive and driven wheels
Inventor: RUEGER HANS DIPL ING
IPC: F16H7/02
Filed: 1990-12-08
Abstract: The drive mechanism has a first drive pice (14) with continuous toothed belt (20) a drive-wheel (18) and at least one driven wheel (22, 24). At least one second drive-piece (16) has a second continuous flat belt (30) positioned on the same drive-plane and driven directly or indirectly by the first drive-piece (14). The second belt (30) is tightened by a driven wheel (32) against the pulling stringer of the first belt (20), the two pulley belts (20, 30) and two adjacent wheels (18, 32) of the two drive pices (14, 16) each have the same looping angle of especially 50 deg. or more. USE/ADVANTAGE - The drive mechanism is axially compact and has at least two pulley-drives on a uniform plane.
Patent DE-4040583-A1 (DE)
Title: Clarification of sludge for constructing road noise barriers - by incorporating among plastic profiles pref. contg. barrier layer and drain
Inventor: SACHSSE LOTHAR
IPC: E01F8/02
Filed: 1990-12-19
Abstract: Environment-friendly utilisation of clarification sludge involves incorporating the sludge in, under and between plastics profiles. Pref. the profiles are produced from low grade, pref. unsorted plastics waste esp. by extrusion to hollow profiles. The profiles are pref. erected on foundations, esp. including a barrier layer and drain. The sludge is pref. dried in-situ and any shrinkage is compensated by topping up. Plant troughs of plastics are used to provide a rain cover and are planted with trailing plants. USE/ADVANTAGE - The process may be used in construction of noise barrier walls. The sludge is disposed of inexpensively without the need for predrying and is sealed against weather and groundwater. The profiles have long life, are inexpensive to mfr. and are provided with a requisite weight and wind stability by the sludge.
Patent DE-4103079-A1 (DE)
Inventor: KAISER WILHELM
IPC: B21D26/02
Filed: 1991-02-01
Abstract: PCT No. PCT/DE92/00063 Sec. 371 Date Sep. 23, 1992 Sec. 102(e) Date Sep. 23, 1992 PCT Filed Jan. 31, 1992 PCT Pub. No. WO92/13655 PCT Pub. Date Aug. 20, 1992.An apparatus for pressure deforming a hollow workpiece having a tubular end portion has a die formed with a cavity adapted to receive the workpiece with the end portion of the workpiece projecting out of the die and a fitting movable along an axis toward and away from the die and formed with a seat sealingly engageable in a feed position over the projecting end portion of the workpiece. An annular self-tightening gland in the seat circumferentially engages in the feed position around the projecting end portion of the workpiece. A passage opening in the seat into the hollow workpiece when the fitting is engaged over the projecting end portion serves for pressurizing an interior of the workpiece and thereby deforming it outward against an inner surface of the die and for pressing the gland radially tightly against the workpiece and against the fitting.
Patent DE-4103142-A1 (DE)
Title: Housing for lock of motor vehicle door - is made of plastics, with moulded grooves to receive sealing strips
Inventor: STENGER ALFRED
IPC: E05B77/34
Filed: 1991-02-02
Abstract: A lock for the door of a motor vehicle has a housing (1) which is made of plastics. The housing is formed with fixing holes (2) and with a slot (6) to receive the lock bolt. The slot (6) as a sealing strip (7) fitted around its perimeter. The sealing strip has projecting lips (9,11) which fit in grooves of matching cross-section. These grooves are formed during the moulding of the plastic housing. A similar groove (10) is formed to receive the projecting lip of the bolt stop (8). USE/ADVANTAGE - Housing for car door lock is made of plastics with moulded grooves to receive sealing strips.
Patent DE-4103992-A1 (DE)
Title: Glazing kiln ventilation grid - has one-piece stamped frame with stamped centre opening to take grid insert
Inventor: MUELLER GOTTFRIED
IPC: F24F13/08
Filed: 1991-02-09
Abstract: The frame for a ventilation grid, especially for glazing kilns, is a one-piece structure, stamped from a plate to form a framing strip. An opening is stamped from the frame for the ventilation insert and, at the same time and in the same operation, the side edges of the frame are bent up as are the inner walls surrounding the stamped opening. An embossing is formed in one surface of the frame. The ventilation insert, with stamped slits or holes and raised side edges, is placed in the frame opening, and its edges are coupled to the opening edges of the frame in a release mounting. The frame (1) is stamped in one piece, and the outer edges and the inner edges round the central opening (8) are bent upwards, and one surface is embossed. The ventilation insert (2) is placed within the frame opening (8) with its upturned edges against the vertical edges round the frame opening (8), to be coupled with a release lock. ADVANTAGE - The method gives the frame for fitting, in a rapid operation, without welding.
Patent DE-4106644-A1 (DE)
Title: Shrouded propeller ship propulsion system - comprises drive shaft and propeller with hub screw vanes and central bore
Inventor: WERNER HANS-JUERGEN
IPC: B63H1/28
Filed: 1991-02-28
Abstract: On the propellor hub (1) are two or more screw vanes (4) which are connected to a short cover nozzle or shroud (3). The central bore in the hub is connected to an air suction channel (5) in the hollow drive shaft (6). Outside the water surface, the drive shaft has suction holes (7), whereby the air suction channel of the drive shaft is in connection with the atmosphere. The screw vanes (4) driven by the drive shaft (6) produce a thrust by reason of their pitch which sets the vessel in motion. At the same time, they produce a swirl field and a vacuum which expand circularly in an axial direction as a turbulent flow which has a disadvantageous influence on the drive effect. The vacuum produced by the cover nozzle (3) sucks in an air current through the hollow drive shaft. This current fills the vacuum area in the backflow produced by the vanes, and causes a balanaced drive effect. USE/ADVANTAGE - Shrouded ships propeller with hollow shaft can compensate the swirl drag of a ship hull during forward drive, and produce a more balanced speed effect from the propulsion machinery.
Patent DE-4108704-A1 (DE)
Title: Receptacle holder with two supports joined by cross piece - has extra support of two segments joined by swivel bearing, with claw connection
Inventor: NEUGEBAUER PETER DIPL ING
IPC: B66C1/66
Filed: 1991-03-16
Abstract: The holder for a receptacle (1) consists of at least two supports (2) joined by at least one cross-piece (3) on the same plane. The cross-piece is joined to at least one extra support (5) by at least one bearing (4) enabling its position to be altered. The extra support consists of at least two segments (8, 9) joined by a swivel bearing (10) and supports the receptacle near one side (7) of it, facing away from the receptacle-wall (6) supported by the supports (2). The supports have rigid or flexible parts. At least one of the supports has a claw-connection (11) fitting into the receptacle. ADVANTAGE - The compact holder is for carrying both heavy and unfilled containers, without them twisting or becoming unstable.
Patent DE-4108911-A1 (DE)
Inventor: SCHILL HERMANN
IPC: F25C1/142
Filed: 1991-03-19
Abstract: An ice-maker has a freezing roller which is immersed in a freezing liquid tank (2) and in each case at least one valve-controlled liquid supply and drain, the tank (2) being fillable with liquid to be frozen when the ice-maker is brought into operation and emptiable on stopping of the ice-maker. According to the invention, there is provided on the tank (2) a cleaning device (50) for rinsing the tank (2) and/or the freezing roller (9) and the drain (6) of the tank is adapted to the operating time of the cleaning device (50) (Fig. 3). According to a method for ice-making, a cleaning process for the parts (interior of tank 2; freezing roller 9 or the like) coming into contact with the liquid (35) to be frozen can be included temporally directly before ice-making, and possibly a cleaning agent can be used for cleaning the abovementioned regions of the ice-maker (1, 1a), which agent differs from the liquid to be frozen, possibly with subsequent inclusion of a rinsing interval using liquid to be frozen.   <IMAGE>
Patent DE-4112185-A1 (DE)
Title: Feed system passing cable through protective tube - uses compressed air with end of cable attached to flexible plug that inflates upon increase in pressure to grip tube and protect against overload
Inventor: POREMBA JOHANNES DIPL ING
IPC: H02G1/08
Filed: 1991-04-13
Abstract: A cable or optical fibre conductor (20) is fed from a reel (9) and passed through a long length of protective tubing (1). The feed motion is provided by compressed air that enters through a side port, this air being generated by a compressor (18) via a regulating system (13-16). The air passes through a reservoir (12) contg. water to create a fine spray into the air. The end of the cable is attached to a plug (22) produced of flexible material and in a bulb form that inflates to vary the clearance gap according to the air pressure. Above a specific value the plug jams to prevent cable overload. ADVANTAGE - Enables long lengths of cable to be fed through tube without overload.
Patent DE-4115158-A1 (DE)
Title: Digital vehicle operation condition recorder - keeps timed records of any vehicle characteristics e.g. speed
Inventor: ISHIBASHI WATARU
IPC: G07C5/08
Filed: 1991-05-08
Abstract: The device is a digital vehicle condition monitor which keeps timed records for all types of usage. It includes a card printer a clock and a small display device. The data is collected at start-up and at regular intervals. It includes culmative time and other items (eg speed). With every record the time is also printed. The last reading is displayed.  All readings are printed on a record card. USE - Particularly for heavy vehicles.
Patent DE-4116400-A1 (DE)
Title: Injection solns. contg. non-steroidal antiphlogistic substances - for local treatment of acute, sub-acute and chronic recidivist pains of rheumatic or non-rheumatic origin
Inventor: GRUENSPAN MICHAEL DR MED
IPC: A61K31/415
Filed: 1991-05-18
Abstract: An injection soln. contg. non-steroidal anti-phlogistic substances (I) as active ingredient, contains (I) in a concn. of 0.1-100 mg/ml in a physiological medium. (I) is pref. present in a concn. of 1-10 mg/ml. (I) is a pyrazolone deriv. such as pheny butazone, Dichorferac, Ibuprofen or Pyroxicam. USE/ADVANTAGE - Used for local injection for the treatment of acute, subacute and chronic, recidivist, painful conditions which are of rheumatic or non-rheumatic aetiology. The solns. enable (I) to be injected repeatedly at the site of action. (I) can be injected directly at the site of the inflammation and the concn. of (I) is determined by the size of the inflamed area. Most of (I) reaches the target without systemically affecting the rest of the body. Maximum antiphlogistic and analgesic affects are obtd. without local side effectac
Patent DE-4118160-A1 (DE)
Title: Darkening edge of lens to absorb stray light - by wrapping strip of plastics around edge and then sintering plastics
Inventor: GUYENOT VOLKER DR SC TECHN
IPC: G02B1/10
Filed: 1991-06-03
Abstract: The lens or other item of optical equipment undergoes a sequence of mfr. operations such as machining, polishing, cleaning and coating. It has its rim and edges covered with a material which absorbs stray light. The lens (1) is held in the jaws (2,3) of a clamp and rotated by a motor (4). A layer of plastics film (5) such as PVC, is wrapped around the lens. This layer of film is then carbonised by a laser beam which also sinters the carbon deposit to bond it to the lens. USE/ADVANTAGE - Darkening the edges of lenses by a process which directly follows lens mfr., to ensure absorption of stray light.
Patent DE-4119886-A1 (DE)
Title: Continuous thickness measurement device for metal plate rolling mill - has two contact rollers applied pneumatically, with potentiometric measurement of variation in distance between their parallel axes
Inventor: ALTHAUS P-GERHARD DR
IPC: B21B38/04
Filed: 1991-06-17
Abstract: The thickness (S) of the strip (13) is deduced from measurements of the positions of the wipers of two potentiometers (16, 17) coupled to respective electrically-insulated rollers (2,1) which are urged against opposite faces by pistons (4,3) sliding in cylinders (8,7) supplied (12) with air under pressure. The pistons have equal surfaces (15, 14) under equal pressures and are constrained by internal springs (10,9). If the strip (13) moves (x or y) into another plane with unaltered thickness, the air column (11) oscillates slightly while roller contact (19) is maintained. ADVANTAGE - Forces on both measuring rollers are maintained equal in different positions of measurement planes.
Patent DE-4120116-A1 (DE)
Inventor: KRUEGER HINRICH DIPL ING
IPC: F02B1/04
Filed: 1991-06-19
Abstract: In a crankshaft angle-based fuel injection pulse duration control system, the desired pulse length is calculated in accordance with the measured air intake quantity at 6 and is transformed into a count value in a counter 20. The fuel injection pulse is started at a time determined by reference generator 13 and is stopped when the number of pulses of shorter duration than the minimum injection pulse duration and produced by an engine rotation sensor 14 equals the desired number stored in counter 20. <IMAGE>
Patent DE-4121404-A1 (DE)
Title: Automatic assembly system for surface mounted devices - optically measures actual assembly position to allow position correction and confirmation of presence
IPC: H05K13/08
Filed: 1991-06-28
Abstract: The automatic assembly system provides a high positioning accuracy by optical measurement of the actual position of the suface mounted device after initial positioning, with verification of the presence of the component. Pref., the component assembly head is coupled in a position feedback loop alowing the measured position of the s.m.d. to be corrected, with auxiliary regulation of the pressure and dwell time of the assembly head relative to the circuit board for each individual component. ADVANTAGE - Increased positioning accuracy reducing rejection rate.
Patent DE-4122399-A1 (DE)
Title: Digitally measuring alternating voltages and currents - registering deviations of frequency from nominal value and eliminating frequency dependent errors from effective values
Inventor: NEUGEBAUER GEORG DR ING
IPC: G01R19/25
Filed: 1991-07-04
Abstract: The ready position of scan values (u(t1)....u(tN)) to the scan time points (t1...tN) produced by a constant scanning frequency provides a window (W1) determined by the period duration of the alternating dim.(u) and the arguments are the effective value (U(t1)) related to the first commencement time point (t1) and calculated after comparison. Further effective values (U(t2).....U(tN)) are calculated via scanning values (u(t1 + n .....u(tN + n) after comparison in the window (W1) displaced by time cycles (n = 1,2 .....N). The measurement value of the alternating dim. (u) is formed out of the average value of the effective values (U(t1)....U(tN)). The measurement value of the alternating dim. (n) is represented by the average value of the effective values (U(t1).....U(tN/2)), which are calculated after comparison via scan values (t(t1 + n .....u(tN + n) of the window (W1) displaced by time cycles (n = 0,1 .....tN/2). ADVANTAGE - Uses constant frequency for scanning process.
Patent DE-4137454-A1 (DE)
Title: Moulding reinforced decorative foam - by laying reinforcing film plus loose adhesive coated film on one hot mould tool, adding foaming material to other hot tool, and closing mould
Inventor: BERWEILER EUGEN
IPC: B29C44/12
Filed: 1991-11-14
Abstract: Preformed thermoplastic decorative film is positioned in an open foam mould and the reinforcing part is also positioned in the mould. Reinforcement side towards the foam is covered with a bonding sealing film. Film is tautly held across all open places on the back of the reinforcement as well as over the edge joint between the inner surface of the open mould tool and the outer surface of the reinforcement so that the film has a projecting edge to seal off the foam mould. Foaming agent is added to a particular position in the foam mould which is then closed. After curing the foaming agent the component is then de-moulded. Film before being shaped is a sheet of high-strength material, pref. polyurethane, coated with hot melt adhesive, is loosely laid with the coated side towards the reinforcement along the reinforcement, then made taut and fixed by its edge to a part (the top tool) of the foam mould. Pressure of the expanding foaming agent in the closed mould forces the film against the inner (foam)side of the reinforcement, shaping it. Heat of reaction of the foaming agent activates the hot melt adhesive whose triggering temp. is lower than the cure temp. of the foaming agent, and the film is therefore bonded to the reinforcement. Film is pref. polyurethane. USE/ADVANTAGE - Cheaply produced reinforcement for car interior and composite components have one decorative film side, and reinforced foam.