baber/WOPTO huggingface dataset:
Patent DE-3942929-A1 (DE)
Title: Chain coupled scraper bar - has narrow base edge fitted with ribs to straddle ground grooves
Inventor: BRUEGGEMANN REINHOLD
IPC: B65G19/22
Filed: 1989-12-23
Abstract: The scraper profile has shaped wings linked by a hollow centre section to which the drag chains are attached. The bar tapers to a narrow section (10) which scrapes the floor. Rib extensions (11) are fitted to the wings to slide the scraper over the grooves (14) between floor panels (15). The extensions are shaped into the leading edges of the wings and prevent the scraper blade snagging in the grooves. ADVANTAGE - Quiet operation, less wear on scraper blades.
Patent DE-3942991-A1 (DE)
Title: New 2,3-bis:indolyl-maleimide derivs.
Inventor: BARTH HUBERT DR
IPC: C07D403/14
Filed: 1989-12-27
Abstract: Bis-indolyl-maleimide derivs. of formula (I) and their pharmaceutically acceptable salts are new. In (I), R1 and R2 = H; 1-18C alkyl; benzyl (opt. substd. by 1-3 1-4C alkyl or alkoxy or halo); up to 12C aminoalkyl (opt. N substd. by 1 or 2 benzyl or 1-4C alkyl, or both substits.  complete a 3-6C heterocycle, and the alkyl chain can be substd. by 1-4C alkyl, OH or 1-4C alkoxy); up to 12C amidinothio-, nitroguanidino- or isothiocyanato-alkyl; up to 6C epoxyalkyl; up to 6C alkoxycarbonylalkyl; CH2CONR11R12; haloalkyl, hydroxyalkyl (opt. substd. by halo or OH), or alkoxyalkyl (opt. substd. by 1-3 OH), each of up to 6C; 1-4C acyl or glycoside residue; R11 and R12 = H, 1-6C alkyl or benzyl; R3-R10 = H; 1-4C alkyl, alkoxy or acyloxy; halo; NO2; amino (opt. mono- or di-substd. by benzyl or 1-4C alkyl); benzyloxy; OH; up to 12C aminoalkoxy (opt. substd. as aminoalkyl above); CF3 or two adjacent gps. together form methylenedioxy. Not all of R1-R10 can be H and if R4, or R4 and R9, are OH, all the remainining R gps. cannot be H.
Patent DE-4006692-A1 (DE)
Title: Disc brake pad retention coil spring releasably held on pin - has coil and pin dias. chosen so that greater friction exists between coil and pin than between spring arms and brake housing
Inventor: GRAU ULF
IPC: F16D65/097
Filed: 1990-03-03
Abstract: The retention spring (5) for a disc brake pad (3) consists of two outwardly extending spring arms (7,8) connected to at least one spring coil (10), the latter releasably fixing the spring to a pin (9). The coil and pin dias. are chosen so that, with the spring arms in position against the brake housing, the axial friction force holding the pin is considerably greater than that between the spring arms and their contact surfaces. USE/ADVANTAGE - Retention spring for brake disc pad is securely held and easily replaced.
Patent DE-4007915-A1 (DE)
Title: Safety belt lock with mass compensation - has movable mass in closure body for security against accelerating forces
Inventor: KRAUTZ KURT
IPC: A44B11/25
Filed: 1990-03-13
Abstract: The safety belt lock for vehicles etc. includes a compensating mass (21,25) in the housing to secure against shocks. This compensating mass is mounted to move in the closure body (10) relative to the blocking bolt (17) which is mounted in the housing to move at an angle to the insert path for the locking tongue. In the event of acceleration in the same direction as the insert direction of the slider button (20) the compensating mass supports e the blocking bolt directly and is stressed into the position securing the blocking bolt by a spring which is supported on the closure body (10) with a locking bolt (14). USE/ADVANTAGE - Safety belt for vehicles. The blocking bolt is secured against automatic opening in the event of accelerating forces acting in the insert direction of the slider button.
Patent DE-4019614-A1 (DE)
Title: Rotary anode X=ray tube - has surface configuration arranged to minimise heating of bearings
Inventor: BEHLING ROLF
IPC: H01J35/10
Filed: 1990-06-20
Abstract: The rotary anode X-ray tube has an anode disc (2) that receives the electron beam (1). The disc is integral with a sleeve (3) that locates on a rotor (4), supported in turn on bearings (5). - The contact surfaces (8,9 and 10,11) of the sleeve and rotor are in the form of concentric rings with a triangular cross section that increases the heat transmission surface. The wall thickness (12) is small to increase external transmission to minimise the heating of the bearings.
Patent DE-4027331-A1 (DE)
Title: Fault detection in self checking circuit - uses line monitoring and polarity reversal of supply to circuits via diode bridges
Inventor: HAMMER GERHARD DIPL ING
IPC: H04B3/54
Filed: 1990-08-29
Abstract: The power supply (6) has two connected devices (4,5) with a fault associated with device (4). In partic. each device (2,3) is connected to the power supply (6) via a diode bridge (4,5). The remote power supply (6) monitors the line voltage and reverses the polarity at the latest possible moment, if a partic. threshold value is not maintained. Pref., the polarity of the supply voltage will be cyclically reversed; also an alarm signal will be generated following a short circuit in either the circuit (1) or devices (2,3). ADVANTAGE - Detection of all simple faults.
Patent DE-4031578-A1 (DE)
Title: Carbon@ mol. sieve prodn. for sepg. oxygen@ and nitrogen@ -  using phosphoric acid in water for moulding oxidised coal with pitch binder to increase oxygen@ adsorption, improving nitrogen@ recovery from air
Inventor: ZIEGLER ALOIS
IPC: B01J20/20
Filed: 1990-10-05
Abstract: Prodn. of carbon mol. sieves (I) for sepg. O2 and N2 is carried out by oxidising finely ground mineral coal with air in a fluidised bed, adding mineral coal tar pitch as binder and water, moulding, low temp. carbonisation at temps. up to 900 deg.C, activation with steam at 800-900 deg.C and treatment of the slightly activated precursor with hydrocarbons forming C at 750-850 deg.C. The novelty is that H3PO4 is added to the water. Pref. H3PO4 is added in a concn. of 0.3-3 (wt.)% w.r.t. coal and binder. USE/ADVANTAGE - (I) are useful in the recovery of N2 from air by pressure swing adsorption. Adding H3PO4 increases the adsorption of O2 and hence reduces the energy cost of N2 recovery from air.
Patent DE-4037113-A1 (DE)
IPC: B09B3/00
Filed: 1990-11-22
Abstract: A method for producing a soil improvement material for agricultural purposes is proposed for the utilisation of animal and human excreta and is environmentally compatible and economic. The products to be processed, such as faeces, dung, slurry, sewage sludge, are treated with a mixture of polymers and acids, and subsequently gypsum, which is in any case produced as waste material, is added to the homogenised product. The mixed product is then subjected to heating. The resulting waste air is preferably biologically purified. The resulting product is outstandingly suitable as fertiliser for agricultural purposes.
Patent DE-4038357-A1 (DE)
Title: Prodn. of bulky and lightweight webs - which are heat bonded and wound in rolls, involves initially dampening web, impregnating with bonding agent, heating and winding into rolls
IPC: D06B3/20
Filed: 1990-12-01
Abstract: A process to produce esp. light webs which are heat bonded and wound in rolls. Initially the web is dampened and then impregnated with the bonding agent. The appts. is also claimed. Pref., the process uses an installation which includes the facility to impregnate with a chemical soln. Initially, the web is layered continuously from a carding machine up to 10 grammes per square metre. This is then taken by a moving lattice into a continuous band vat. The container is filled with water to a suitable level, and can be varied as required. To hold the web firmly, it passes into the water between the continuous band and a perforated drum. It is partially dried by air extn. and carried upwards on the band, into the chemical applicator. The impregnation is in the wet state, and is then transported by another moving lattice into a conventional drying and reeling installation for heat bonded non-woven material. ADVANTAGE - The web material may be made bulky and lightweight. It is produced at a high speed.
Patent DE-4103584-A1 (DE)
Title: Small line of earthing switch with coupling conductor on frame - has flexible conductive wire as parallel connection for movable contact and coupling conductor
Inventor: OYAMA JUN
IPC: H01H1/58
Filed: 1991-02-06
Abstract: On the switch frame is fitted a coupling conductor, cooperating with a slidable movable contact for making an electric connection. The coupling conductor and the movable contact have through apertures for the rotary passage of a shaft portion. A switching shaft is rotatably mounted in the frame, while an electrically insulating holder coacts with each end of the shaft portion and is rotatably mounted through the switching shaft. The movable contact is rotated w.r.t. the coupling conductor in dependence on a preset current. A flexible conductive wire forms a parallel connection for the sliding electric coupling between the movable contact and the coupling conductor. ADVANTAGE - Improved switching with forced electric connection and moving contact directly fitted to holder.
Patent DE-4105831-A1 (DE)
Inventor: MAILLIET PIERRE
IPC: C21B7/24
Filed: 1991-02-25
Abstract: The probe comprises a probe arm provided with a series of orifices for simultaneously taking gas samples and measuring the heat at different locations of the charging surface and penetrating through an opening in the furnace. This opening is surrounded by a support hoop integrally connected to the wall of the furnace and provided with two diametrically opposite outer journals on which are articulated two parallel arms supporting between them the probe arm. This arm can move about the center of the said hoop under the action of at least one actuator mounted between the said hoop and the outer end of the probe arm, the arm comprising a circular sliding surface moving, sealingly, over the inner surface of the said hoop.
Patent DE-4108363-A1 (DE)
Title: Rotor spinner sliver insertion - is automatic with inner underpressure and mechanical sliver opening and external monitoring of fibre delivered from new sliver end
Inventor: VITAK JOSEF DIPL ING
IPC: D01H4/50
Filed: 1991-03-15
Abstract: During the automatic feed of new sliver into a rotor spinning machine, simultaneously or in succession there is an underpressure applied to the end of the sliver from the interior of the spinning unit and a mechanical drawing-in and sliver opening action. The vol of fibres sepd from the sliver end and sucked into the spinner is controlled externally until it is registered that a sufficient fibre vol from the end of the sliver has been achieved. Pref within the suction tube (30) a transmitter to monitor the volume of fibres sucked through from the end (19) of the sliver is connected to the control unit (25) of the splicing appts through an evaluation unit (34). An air permeable sieve (27) is within the inner cross section of the suction tube (30) to trap loosened fibres. Outputs are at the suction tube (30) in front of and behind the sieve (27), linked to a measurement unit evaluation system (34) in the control function (25). The sieve (27) is fitted to a distorting section within the section tube (30), connected to the transmitter. The transmitter is also connected to an indicator at the evaluation unit (34). A delay is in the programe controlled system to delay the removal of the suction tube (30) from the entry opening (23) of the exhaust channel (22), after the underpressure action has been stopped, in order to extract the fibres from the transmitter in the collection channel of the suction exhaust (24). ADVANTAGE - The technique gives a sliver insertion action, even after a number of attempts, without requiring a spinner cleaning procedure and without applying force to the sliver.
Patent DE-4110488-A1 (DE)
Title: Rotating magnetic coupling for flow valve - has filter between coupling magnets to prevent particles from entering housing
Inventor: ANDREI-ALEXANDRU MARCEL
IPC: F04D13/02
Filed: 1991-03-30
Abstract: The rotating magnetic coupling for a flow valve is located in a blind hole housing (10), and drives a pump wheel (12). It has at least one filter (14), either mechanical or magnetic, for preventing particles, especially metal particles, from entering the housing and eventually blocking the pump. The filter is located between the coupling magnets (24) and the pump wheel. It forms part of the magnets projecting from the housing. ADVANTAGE - Prevents entry of particles to the driven parts of the magnetic coupling.
Patent DE-4111551-A1 (DE)
Title: Linear guide unit with elongated U=shaped guide housing - has axially parallel guide rail, with carriage and drive mechanism
Inventor: KOSCHMIEDER HARTMUT DIPL ING
IPC: F16C29/06
Filed: 1991-04-09
Abstract: The linear guide-unit has an elongated U-shaped guide-housing (1) in which is fixed an axially parallel guide-rail (2). A carriage (3) runs along the rail, driven by a drive mechanism. The carriage has a part (5) partly enclosing the guide-rail, and a part (8) containing parts of the drive mechanism; and a connection part (9) for a connection, protruding out of the housing. ADVANTAGE - The linear guide unit has a more rigid, one-piece carriage with increased load capacity.
Patent DE-4113311-A1 (DE)
Inventor: VIAUD JEAN
IPC: B65G45/20
Filed: 1991-04-24
Abstract: 2.1 Conventional devices (30) for preventing accumulation of material on a moveable part of a conveyor include scraper strips, which strip the adhering material from the moveable part, and worms, which carry it to a delivery point. Other devices include counter-pressure rollers in order to generate sufficient dynamic effect with the worms. A device of this kind with a simpler construction is required. 
<??>2.2 A device (30) for preventing accumulation of material is proposed in which a worm (32) is provided in the immediate vicinity of a roller (22) and immediately strips material collecting on the same and feeds it to a delivery point. 
<??>2.3 Devices of this kind are used, for example, in agricultural round balers. 
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Patent DE-4115095-A1 (DE)
Inventor: HUNDEGGER HANS
IPC: B27G19/10
Filed: 1991-05-08
Abstract: The rotary milling tool has on the circumference a cutting knife with cutting edges. Some of these cutting edges are aligned to correspond to one direction of rotation of the tool body, other of the cutting edges are aligned to correspond to the other direction of rotation. All the cutting edges have the same distance from the axis of rotation. A milling tool of this form can be used in the same way in both directions of rotation. <IMAGE>
Patent DE-4115224-A1 (DE)
Title: Clamping device for top tool in folding press - has mirror-symmetrical head strip in top tool and retention head in press head
Inventor: WEBER ALBRECHT
IPC: B21D5/02
Filed: 1991-05-10
Abstract: The top tool is fitted with a head strip into a groove in the press head. It is supported against the lower side of the press head, and the two are clamped together via hydraulically loaded clamp elements. A spring-loaded catch bolt engages with a head profile in a complementary opening in the head strip of the top tool, and a retractable against the spring. The head strip of the top tool (4), and the retension groove of the press head (1), are mirror-symmetrical relative to the longitudinal centre plane of the top tool. A wedge action resulting from the head profile of the bolt (15) and the counter profile (20,21) of the opening (18,19), retains the top tool in the retention groove, positively and free from play. USE/ADVANTAGE - Clamping device for the top tool in folding press. During operation, top tool is supported with symmetrical load distribution. '(6pp Dwg.No.5,6/7)
Patent DE-4116374-A1 (DE)
Title: Wear resistant surfaces of pressure-loaded machine parts - has ridges made of buffer material connected to machine parts and the depressions formed are filled
Inventor: SCHWECHTEN DIETER DR ING
IPC: B23K35/00
Filed: 1991-05-18
Abstract: The method for producing wear resistant surfaces consists of applying coatings made of hard materials. It is characterised by the fact that fields of hard material are obtd. by filling the depressions formed by means of ridges of a buffer material connected with the base material of the machine parts. The fields of hard material are of the same size and form, and are arranged in parallel rows. Their form is rectangular, while their dimensions, being normally from 20 to 50 mm, does not exceed 100 mm. The ridges of a buffer material are produced together with the machine part by means of a casting process. Alternatively, such ridges can be produced by means of a forming or machining process. A build-up welding process and material with a ferrite-martensite structure can also be used. The hard material can be applied by a casting or welding process. The base material of the machine part is preheated before such a process. USE/ADVANTAGE - It can be used in machines intended for diminution (roll mills, rock crushers), compacting (briquette and pellet presses) and forming (deep drawing, forging equipment) of materials. It eliminates surface cracks which constitute the main drawback of existing methods. Application of thicker protective coatings is made possible.
Patent DE-4124479-A1 (DE)
Title: Hybrid drive esp. for motor vehicle including stepless gear box - connected across clutch consisting of electric machines and three shaft power distribution drive with electric motors working as generator as required
Inventor: REGAR KARL-NIKOLAUS DR
IPC: B60L50/30
Filed: 1991-07-24
Abstract: Electrical machines (5, 6) are connected to a sec. cell battery (10) via a control lead (9). One machine (6), has a reaction shaft (11) giving auxiliary power, the other machine (5) being in motor operation. One machine (5), in generator operation mode, engages a drive connection with one of the remaining two shafts (input shaft 12, driven shaft 13) of the power distribution drive (7). The shafts of the latter are mechanically connected to the electrical machines non-rotationally, using a controllable clutch (14). Both machines (5, 6) form a common drive motor (15) or a common generator (15') via the locked power distributor drive (7). USE/ADVANTAGE - Type hybrid drive developed to give low losses and power increasing electric drive, also generator operation with high power regeneration.
Patent DE-4134110-A1 (DE)
Title: Slicing of hard, brittle materials, esp. semiconductor rods - by rotary sawing process avoiding centre damage
Inventor: LANGSDORF KARL-HEINZ DIPL ING
IPC: B28D5/02
Filed: 1991-10-15
Abstract: In the sawing of hard brittle materials, esp. semiconductor crystal rods or blocks esp. of more than 200mm. dia., into thin slices by advancing the rotating workpiece against the inner cutting edge of an annular saw, the novelty comprises (a) flat grinding the end face of the rotating workpiece; (b) rotary sawing the workpiece with the annular saw while leaving a residual connection betweem the slice and the workpiece; (c) sepg. the slice and the workpiece by a sepn. technique which leaves a central projection on the slice and the workpiece; and (d) rotary grinding the sepd. slice. Also claimed are (i) appts. in which an eternally toothed annular saw, a rod face grinding device and a device for separating the rod and a slice are integrated in a single machine; and (ii) semiconductor wafers prepd. by the process. USE/ADVANTAGE - For prepn. of Si, Ge or GaAs wafers. It allows rotary sawing of large dia. rods without rod or wafer centre damage, using a single compact machine
Patent DE-4134305-A1 (DE)
Title: Fresh air supply system for buildings with several rooms + - consists of supply and return lines passing through heat exchanger and connected to each room separately
Inventor: DREHER EDUARD
IPC: F24F7/08
Filed: 1991-10-17
Abstract: The fresh air system consists of a supply (13) and a return line (14) to each room (24). Each set of lines passes through a heat exchanger (7), and, in addition to the heat from the exchanger, there is an interchange of heat between the lines. The supply air temp. is about as high as the normal temp. of the corresponding rooms.Pref.a heating installation for fresh air is connectable. USE/ADVANTAGE - For medium and large buildings,with increased fresh air supply,good tempering,and low energy requirements.
Patent DE-4134322-A1 (DE)
Title: Drinks container cooling device - using dosed transfer of fluid to cooling jacket employing fluid evaporation
Inventor: JUBT KARL-HEINZ
IPC: F25D7/00
Filed: 1991-10-17
Abstract: The cooling device uses evaporation of a cooling fluid and has a cooling mantle (2) fitting around the outside of the drinks container made of a material which holds the cooling fluid. The latter is fed to the cooling mantle (2) from a cooling fluid reservoir (3) via flow openings (11) in the mantle (2). The level and timing of the cooling is controlled via a dosing element (5) controlling the transfer of the cooling fluid from the reservoir (3) to the cooling mantle (2). Pref. the cooling device has hangers (6, 7) allowing it to be suspended in free air. ADVANTAGE - Provides cooling without using electrical energy.
Patent DE-4143052-A1 (DE)
Title: Mitring saw for window frame production - has deflector plate between saw blades to guide scrap pieces away from saw teeth on return stroke
IPC: B27B31/08
Filed: 1991-12-27
Abstract: The object of the invention is to ensure that the scrap pieces (24,25) do not drop into the saw teeth or become jammed between the blades. The two saw blades (6,7) and drives are mounted one behind the other on a pneumatically driven slide (4). The blades are inclined to create a cutting vee producing 90 deg. mitre cuts in window frame members held on the table (8) as the sawing slide is traversed forward in direction (Z). Between the two blades is a sickle shaped deflector plate (14) partly encompassing the periphery of the leading blade (6) and aligned with it. The top end (16) of the deflector plate extends back over the face of the trailing blade.
Patent DE-4200993-A1 (DE)
Title: Low pressure gas discharge switch - has trigger control electrode formed as hollow cylinder between main and counter-electrode
Inventor: ROHDE KLAUS-D
IPC: H01J17/12
Filed: 1992-01-16
Abstract: The switch has several spaced (d) main electrodes (2), forming a discharge path for a low pressure gas discharge at coaxial apertures. They are fitted in a hollow cylindrical switch chamber, contg. an ionisable gas fill of specified pressure. The pressure is chosen so that the gas discharge ignition is reduced with the rising prodn. of pressure and electrode distance. The discharge path contains a control electrode (12) insulated from the main ones and coupled to a control voltage. The control electrode forms a hollow cylinder between a main electrode and a counter electrode (18). USE/ADVANTAGE - For gas discharge path control, with simple design and increased efficiency.
Patent DE-4208049-A1 (DE)
Title: Machine for lapping and polishing steel balls - has grooved lapping plates elastically coupled to backing discs so that rotating plate can be radially displaced to vary ball rolling axis
Inventor: HUTTNER ROLAND DIPL ING
IPC: B24B11/06
Filed: 1992-03-13
Abstract: The balls (9) are lapped between a rotating grooved lapping plate (5') and a non-rotating grooved lapping plate (7') which can be fed towards the rotating plate by a hydraulic cylinder (8). Each plate is secured to a backing disc (5,7) via an intermediate elastic layer (10). Between the lapping plate (5') and the machine housing is a hydraulic actuator (11) producing small programmed radial movements of the plate. By such movements the rolling axis of the balls can be systematically varied. ADVANTAGE - Systematic variation of ball rolling axis is simply achieved, permitting high production rates.