baber/WOPTO huggingface dataset:
Patent DE-3910552-A1 (DE)
Title: Method of reducing the turning circle of icebreakers
Inventor: RADTKE JOACHIM
IPC: B63B35/08
Filed: 1989-04-01
Abstract: To reduce the turning circle of icebreakers, the frames in the area of the stern shoulder are constructed in such a way that they can easily slide onto the ice. In the transition from the bottom to the side, the frames form a knuckle line which runs out from the fore towards the stern. During the rolling movement of the ship, this knuckle line cuts like a knife into the edge of the broken ice channel. Due to unbalanced contact, rolling movements are induced in the ship at its natural frequency so that it alternately moves onto the ice and then breaks the ice. The after-body can thereby move outwards and thus the turning circle can be reduced.
Patent DE-3910796-A1 (DE)
Title: Conveying hose for building materials with an easy-to-operate cleaning device
IPC: E04G21/04
Filed: 1989-04-04
Abstract: A conveying hose, which can be cleaned during operation, serves for the conveyance and, at the same time, especially the discharge of mixtures of building materials. In this way, even mixtures with a very great tendency to sticking can be discharged reliably, and by utilising the full cross-section of the conveying hose, at the end of such a conduit for building materials. Integrated into the wall is an inflatable body which, by being supported against the outer wall of the hose, acts on the flexible inner wall in such a way that the latter bulges out. Any accretions thereby burst off and are carried along by the stream of building material. Cleaning can be carried out at any time at any intervals by connecting the inflatable body, preferably an inflatable hose, to a pressure generator. <IMAGE>
Patent DE-3912996-A1 (DE)
Title: Region with low carrier lifetime in semiconductor devices - uses interstitial diffusion of foreign atoms then generation of vacancies into which atoms diffuse
Inventor: BEELER FRANZ DIPL PHYS DR
IPC: H01L29/744
Filed: 1989-04-20
Abstract: Region with low carrier lifetime is formed in a crystalline semiconductor substrate, pref. Si, by first diffusing foreign atoms into the lattice. These atoms, pref. Cu, Ag or Pd, have the following required properties: they act as recombination centres in lattice positions, they are inactive in interstitial positions, they diffuse via an interstitial, not a kick-out mechanism. The substrate is irradiated with high energy electrons to generate vacancies. Diffused foreign atoms are thermally activated. In this process they occupy vacancies and become active centres. Also claimed are devices made with discrete regions of low carrier lifetime made as above. A mfg. process is also claimed. USE/ADVANTAGE - Process can form a region with a homogeneous concn. of recombination centres. The distribution of the centres is determined by the electron irradiation process  conditions. A deep penetration into the substrate is opt.  Interstitial diffusion ensures that the metal-ions can be distributed evenly using low temps. This allows the process to be carried out after the junctions have been defined in the substrate. Thermal activation is carried out at 200-400 deg.C., which makes it compatible with metallisation systems and/or alloying processes. Process allows the trade-off requirements of a high forward current and low lifetime to be optimised for a large variety of devices e.g. cpd. semiconductor devices.
Patent DE-3921736-A1 (DE)
Title: Vehicle wheel with air line - enables brake cooling on vehicle, and incorporates air inlet and outlet with through-holes in wheel disc
Inventor: SCHEUCHER KLAUS-PETER
IPC: F16D65/847
Filed: 1989-07-01
Abstract: The vehicle wheel incorporates an air line (10) for discharging the cold air for the brakes and partly enclosing a brake disc (5) or brake drum. At least one air inlet open to the inside (13) of the vehicle belongs to the air line (10). At least one air-outlet (12) is near the through-holes (9) in the wheel disc (3) of a rim. The curved air outlet (12) has ends (12') including an angle of roughly 90 degrees running through the centre of the wheel. The air line (10) has a peripheral open, funnel-shaped edge part (11) facing the inside of the vehicle (13). USE/ADVANTAGE - Air is reliably conducted without requiring a special design of the wheel disc's outer end.
Patent DE-3926607-A1 (DE)
Title: Conveying and opening mechanism for folded sheets - has two rollers equipped with grippers for arresting front sheet for opening
Inventor: BOETTCHER WINFRIED
IPC: B65H5/12
Filed: 1989-08-11
Abstract: The mechanism has a pair of rollers (3, 15). The folded sheets are delivered to the first roller (3) by a conveyor, on which the sheets are stacked in an overlapping manner. A pair of grippers (6, 8) on one roller (3), together with a suction nozzle (23), separate the edges of the leading folded sheet (5). As the rollers rotate the upper layer of the folded sheet is gripped by a guide hook (18) of the secbnd roller (15) so that the halves of the folded sheet (19) are spread out and the sheet can be laid on a collector chain (20). A second sheet can then be laid on the first one etc. ADVANTAGE - Low-cost opening and collecting mechanism.
Patent DE-3932044-A1 (DE)
Title: High precision angle measuring appts. - has freely-swinging pendulum disc coupled to potentiometer supplying display via A=D converter
Inventor: SCHOELKOPF JOERG
IPC: G01C9/12
Filed: 1989-09-26
Abstract: The measurement value pick-up is in the form of a  potentiometer coupled to the pendulum. The digital indication is supplied via an a-d converter. Another potentiometer is used for the zero setting. The pendulum is in the form of a circular disc (3) with a cut (4). The axis (7) of the pendulum passes through the potentiometer (5).  A spring-loaded brake (8) is assigned to the disc (3). The brake is connected to a pulse generator (6). The brake can be regularly lifted from the disc (3) or its edge and impact the disc under force of the spring. The brake is pref. in the form of a plate pressed against the disc (3) and lifted pulse-wise by a magnetic coil (2). ADVANTAGE - Higher accuracy. Zero setting of pendulum attained within seconds. Improved vertical alignment. Measuring range approaches 360 deg.
Patent DE-3933350-A1 (DE)
Title: Dental prosthesis colour selection device - uses optical fibre cable for direct visual comparison of tooth with colour scale
Inventor: KLJACKO JAKOV VALEREVIC
IPC: A61C19/10
Filed: 1989-10-06
Abstract: The colour selection device allows the colour of the original tooth (18) to be compared wtih a colour scale (19). A monochromatic light stream is directed simultaneously onto the tooth and the colour scale via an optical fibre cable (2) which is split into 2 sections at each end. Two ofe the latter end sections (12,13) are directed onto  the tooth (18) and the colour scale (19), the opposing end sections (8,9) respectively attached to a viewing objective (17) coupled to the monochromatic light source (15). Pref. an interchangeable light filter (16) is inserted in front of the light source (15). ADVANTAGE - Allows accurate colour selection.
Patent DE-3936170-A1 (DE)
Title: Electrical signal transmission path for vehicle - has fluid film between fixed and moving part as transmission link
Inventor: ZISMER JOERN
IPC: H01R39/30
Filed: 1989-10-31
Abstract: An electrical signal transmission unit allows signals to be transterred between a moving and fixed part. In particular the unit can be used to trasfer a signal between a rotating wheel and the axle. Electrodes (4,5) are set into the parts (1,2) attached to the moving and fixed vehicle elements. Located in the space, between the parts is a liquid (3) retained by sealing sections (7,8). The signals are transferred, between the electrodes and the liquid. The system may be used to monitor tyre pressures. ADVANTAGE - Low wear signal transmission path.
Patent DE-3937577-A1 (DE)
Title: Voltametric analysis cell - with holder cavity holding oversize mercury droplet
Inventor: EHRLICH LUTZ
IPC: G01N27/48
Filed: 1989-11-11
Abstract: Voltametric analysis is carried out using a measuring cell consisting of a sample vessel contg. a reference electrode and an indicator electrode, the indicator electrode comprising a mercury droplet in a basin-like holder connected to a contact lead. The novelty is that the holder cavity is filled with mercury to about one-third to one-half of the droplet dia. and then current-voltage curves for the soln. in the sample vessel are recorded. Also claimed is measuring cell for carrying out the process. USE/ADVANTAGE - The process is used for qualitative and quantitative analysis of reducable substances in soln. by polarography, `stripping voltametry' or adsorption voltametry, e.g. for heavy metal detection in the ppm. to ppb. range. The mercury droplet can be easily located in its correct position and remains stable and resistant to gas inclusions.
Patent DE-3938538-A1 (DE)
Title: Machine holding up=ended stacks of paper sheets - incorporates stacking table with carriage and fingers, cam plate and tension cable
Inventor: KARA HANS
IPC: B65H31/06
Filed: 1989-11-21
Abstract: The machine for holding an up-ended stacks of  sheets of paper incorporates a stacking table (1) underneath which is movably mounted a carriage (6) with stacking fingers (3) on a guide tie-piece (8). The underside of the carriage (6) has a groove (9) across the direction of travel and containing a cam (10) pivot-mounted in the two carriage sides. The cam (10) has a clamping plate (13) through which protrudes at least one stacking finger (3) extending beyond the stacking table (1).  The carriage (6) incorporates a continuous slot (12). On the end of the carriage (6) facing the stack of sheets is a weighted tension cable (14) running over a roller. USE/ADVANTAGE - The stacking machine for sheets of paper enables the operator to remove the part stack with both hands, while the pressure on the remainder of the stack remains constant, independent of the operator's touch.
Patent DE-3941403-A1 (DE)
Title: Measuring device for intensity of ultraviolet component in sunlight - takes account of individual skin tolerance entered via two-key input unit and shown display for sun protection selection
IPC: G01J1/42
Filed: 1989-12-15
Abstract: The device contains a processor (4) between a measurement element (1) and a display unit (8) and an input unit (6) which applies an individual factor for signal processing which enables skin tolerance to be taken account of. The input unit contains two actuating keys and the adjusted factor is displayed as a movable mark in the viewing window of the display. USE/ADVANTAGE - For use by sunbathers to enable selection of sun protection. Correct sun protection factor is determined depending on ultraviolet intensity and individual skin condition.
Patent DE-3943375-A1 (DE)
Inventor: HOSS MICHAEL DIPL ING
IPC: H01H3/16
Filed: 1989-12-30
Abstract: A switch, such as a main control switch, safety switch, etc., comprises a multipart housing in which an electrical contact bridge support coupled with a ram is lodged. The ram is coupled with a driving element mounted in a driving head. The ram rotates in the contact bridge support about its own axis. The contact bridge support therefore prevents removal of the ram.
Patent DE-4004146-A1 (DE)
Title: 75 ohm reflection factor measurement bridge - with signal divider incorporating specified non-precision resistors, connected to indicator and reference resistor
Inventor: OSTWALD OLAF DR ING
IPC: G01R27/06
Filed: 1990-02-10
Abstract: A 75 Ohm reflection factor measurement bridge contains two 125 Ohm resistors (3, 4) in a signal divider (2) connected to the bridge signal source (Uo,Zo). A 65 Ohm resistor (5) is arranged in the bridge diagonal and connected to an indicator (6) and a 75 Ohm reference resistor (7). An additional matching element between a 50 Ohm signal input and the bridge itself is superfluous in this design. USE/ADVANTAGE - For measuring the complex reflection factors of filters, amplifiers, mixers, antennas, etc. with 75 Ohm inputs.  The bridge requires no precision resistors and is relatively simple compared to conventional bridges.
Patent DE-4013307-A1 (DE)
Inventor: COUTANDIN JOCHEN DR
IPC: G02B6/24
Filed: 1990-04-26
Abstract: Method for the production of an optical coupler for polymer light-guides by arranging the light-guides in the same direction and bundling them by means of a plastic shrink-fit sleeve. In this method, two to 10<5> polymer light-guides are arranged in the same direction and bundled and a plastic tube is slipped over the mixing zone. Subsequently, a piece of plastic shrink-fit sleeve is pushed over the plastic tube and the shrink-fit sleeve is heated to a temperature at which it contracts. The shrinking temperature of the shrink-fit sleeve is within the thermoelastic temperature range of the plastic tube. The light-guide bundles may be stretched during or after heating.
Patent DE-4015738-A1 (DE)
Title: Unwinder for length of wide material - consists of two eccentric bushings, with spindles, crank, and drive motor
Inventor: LEY HANS
IPC: B65H16/06
Filed: 1990-05-16
Abstract: The unwinder for a length of material (24) from an eccentric reel (11) on its axle (20), consists of spindles (4a,4b) as extensions of the winder-axle (20) and touching at least one end of the reel (11). At least one spindle (4a) has an electric main drive motor (9). The rotary end of the spindles (4a,4b) have a crank the arm-length of which can be altered by adjustments. The crank consists of a rotary eccentric bushing (6) pivot mounted in a second eccentric bushing (6). USE/ADVANTAGE - The speed at which the length of especially wide material is wound off the reel can be standardised.
Patent DE-4021562-A1 (DE)
Title: Rotary piston cylinder for operating hydraulic clutch - has housing with operating compartments, shaft, and ventilation compartment
Inventor: HAMANN HORST DIPL ING
IPC: F16D25/08
Filed: 1990-07-06
Abstract: The rotary piston cylinder (11) has a housing (17) in which is pivot mounted a piston (18). Several operating compartments (27) are formed between the piston (18) and housing (17) and are exposed to pressure by means of hydraulic oil connections (30). The pivot piston (18) is connected to a coupling operating shaft (12), and the housing (17) connected to a coupling-housing (15). The housing (17) has circle-sector shaped cavities (31) with a pivot-piston (18) lug (25) in each circle sector. An operating compartment (27) is in the hole section between the lug (25) and housing section (26). A ventilation compartment (28) with ventilation hole (29) is in the hole section between the lug (25) and the housing section (26). USE/ADVANTAGE - The cylinder for operating a hydraulic coupling is composed of few parts, is compact and simple to install.
Patent DE-4023622-A1 (DE)
Title: Carton pack for free-flow material
Inventor: HARBOUR RICHARD
IPC: B65D5/54
Filed: 1990-07-25
Abstract: The rectangular shaped carton has a main lid hinged at the rear wall and with an inner sealed lid (24) hinged on the front of the box. The inner lid has tear lines (27,28) along each side for opening and a rear grip tag (26) to aid the opening. The top lid has flanged edges (19,20,21) to shut over the box.  The front flange (21) of the upper lid has a locating tag (32) over an adhesive spot (31) to seal the box after the inner seal is broken. This prevents spillage.
Patent DE-4027002-A1 (DE)
Inventor: RAMLOW KARL DR RER NAT
IPC: G06T7/13
Filed: 1990-08-27
Abstract: In order to inspect the content of images, in particular masks used to produce integrated circuits, a process and device are disclosed. A real image and an ideal image which are both decomposed in picture elements arranged in columns and rows are scanned along x and y coordinates. An x and a y marginal images are thus produced then scanned in the y and x directions to form x/y and y/x marginal images. By calculating the differences between the y/x and x/y marginal images of the real image on the one hand and of the ideal image on the other hand, a real differential image and an ideal differential image are produced. A real comparison image is produced by comparing the real differential image with the ideal differential image. Finally, the ideal differential image is scanned in itself and a defects-containing image is generated that makes it possible to decide whether the real image may be further used or not.
Patent DE-4034581-A1 (DE)
Title: Movable sweeper with roller brush - has dirt collector containing dust bag, with opening around which are rims, and clamps with U=shaped carrying bracket
Inventor: HASENPATH HELMUT
IPC: A47L11/22
Filed: 1990-10-27
Abstract: The movable sweeper has a roller-brush turning on its lengthwise axis, and a dirt-collector removed from its holder by hand for emptying. Next to the roller brush is a single opening formed between the sides (13,14), base (12) and top (11). Along the edge of the opening is a clamp (25A,25B) for attaching the rim of the opening in a dirt-bag fitting into the dirt-collector. The clamp has at least one U-shaped bracket (25A,25B) movably fixed with the free ends of its arms (26A,27A,26B,27B) to the opposite sides of the hole in the dirt-container. ADVANTAGE - The dirt-collector can be emptied without creating a lot of dust by being able to close the dust-bag when it has been released from the clamp.
Patent DE-4038744-A1 (DE)
Title: Winder core with segment shaped shaft - incorporates opening with deflector and tongues
Inventor: KOCH ULF DIPL ING
IPC: B65H75/28
Filed: 1990-12-05
Abstract: The winder-core (10) for lengths of material has at least one axle-segment-shaped shaft (12) axially parallel to the core (10) and open towards the core (10) peripheral surface. The shaft (12) holds one end of the length of material. The shaft (12) has an opening (14) at a tangent to the core (10) peripheral surface. Near the opening (14) is a deflector (20) pointing into the shaft (12). The opening (14) is further from the middle of the winder-core (10) than the radius of the winder-core (10). The core is made of tubular material, and the shaft formed of stamped-out tongues bent radially outwards forming the deflectors (20) at their free ends. USE/ADVANTAGE - The end of the length of material being wound on the core is automatically picked up and fixed.
Patent DE-4038897-A1 (DE)
Title: Method for using organic wastes contg. macromolecules
Inventor: MENGES GEORG PROF DR
IPC: C10B53/00
Filed: 1990-12-06
Abstract: (+21.9.90,6.12.90(2), 21.9.90,19.12.90, 6.3.91-DE-029880,038896/7, 029879,040672,107046). Macromolecules contg. organic -wastes are utilised by decomposing by warming to more than 150 deg.C, pref. under pressure or by shearing to liq. and gaseous components which can then be utilised. An appts. for carrying out the process comprises a melt vessel with a grate and a collecting vessel underneath for collecting the melt. It also has a pump and a means to treat the liq. and gaseous components further, pref. a mixing chamber.
Patent DE-4040458-A1 (DE)
Inventor: SCHULZE MARTINA DR ING
IPC: C04B38/00
Filed: 1990-12-18
Abstract: The invention relates to a porous fireproof rinsing element used for blowing gases through the fireproof casing in metallurgical melting vessels. The proposal is for a rinsing element of synthetic sinter magnesia and a binder having as the binder a combination of a) sulphite spent lye and b) tubular alumina or silica gel and/or zirconium. The sinter magnesia used has a grain structure of > 0 to 0.5 mm at 15 to 40 mass % and 0.5 to 10 mm at 60 to 85 mass %. This provides a rinsing element with high gas transmissivity, good resistance to thermal shocks and relatively high mechanical strength.
Patent DE-4041007-A1 (DE)
Inventor: DETZER RUEDIGER DIPL ING DR
IPC: B01D53/00
Filed: 1990-12-20
Abstract: Device for air purification with biofilters (20), the waste air being withdrawn via piping (1) from a source, such as for example a kitchen, grilling station, frying station or the like and being forced by means of a fan (2), into the biofilter or biofilters (20), is to be developed so as to allow a direct connection of the fan to the humidifier (4), the design of which is to allow operation even with, for example, air contaminated with fat without the danger of clogging for the biofilter (20), where the humidifier (4) connected upstream of the biofilter (20) is to be simply assembled, able to be operated economically and to be cleaned without significant outlay. This is achieved in that a humidifying tower (4) is connected between the fan (2) and the biofilter (20), the tubular housing of which tower is provided at the lower end of the vertical axis with a waste water sump (15, 16) and is provided above this with a tangentially directed air entry (3) which can be flange-mounted to the fan (2), and the upper end of which tower has a centrally connected overflow pipe (18) to connect the humidifier (4) to the biofilter (20), at least two horizontally arranged spraying planes being provided in the tubular housing and each of these spraying planes being furnished with an arrangement of spraying nozzles (10). <IMAGE>
Patent DE-4103574-A1 (DE)
Title: Detecting colour faults during printing - continuously measuring colours of colour fields on printed matter and comparing measurement values obtained with stipulated values
Inventor: WIRZ BURKHARDT DR
IPC: B41J2/525
Filed: 1991-02-06
Abstract: To detect transitory colour defects, the rate of change of the actual values is ascertained from measurement value to measurement value, i.e. steepness of the actual value measurement curve. Passing a predetermined rate of change is taken as indicating a transient defect. The machine regulation is interrupted in an installation for colour regulation when the predetermined rate of change is exceeded. Measurement values within a threshold value range of statistic measurement value fluctuations are not taken into consideration. ADVANTAGE - Adjusting ink supply through machine regulation not necessary.
Patent DE-4103959-A1 (DE)
Title: Prodn. of coated non-conductors esp. plastics - by suitably oxidising the surface to increase its electrical conductivity and then spraying electrostatically with liquid or powder
Inventor: STROHBECK ULRICH DIPL ING
IPC: B05D3/08
Filed: 1991-02-09
Abstract: Articles made of wholly or partly non-conducting materials, and plastics in particular, are produced with a surface coating by raising the electrical conductivity of the areas concerned and then coating them electrostatically, the increase in conductivity being produced by a controlled oxidation, using one of various methods. The oxidation process e.g. etches the surface areas with highly ionised gas such as a corona discharge or a vacuum plasma discharge. The surface can however be treated with an oxidising flame or oxidising acid. The areas concerned are then electrostatically sprayed with powder or liquid. The oxidation of the areas concerned increases the polar proportions of the molecular groups in the material on the surface. In addition the decomposition products in the surface area also increase the conductivity, so that the area attracts the charged particles of the coating. ADVANTAGE - The method completely avoids altering the surface or other general properties of the material. It consequently greatly widens the fields of application of electrostatic coatin