baber/WOPTO huggingface dataset:
Patent DE-3913316-A1 (DE)
Title: Regenerating coke oven battery heated by blast furnace gas - supplemented by lean gas produced from coke oven and flue-gas
Inventor: NASHAN GERD DR
IPC: C10B21/08
Filed: 1989-04-22
Abstract: Method for heating a regenerative coke-oven battery with blast-furnace gas as a lean gas, by using a rich gas.  A non-available proportion of the blast-furnace gas is replaced by a synthetic lean gas, of about the same calorific value, produced from coke-oven gas (as the rich gas) and flue-gas from the coke-oven battery. Variants claimed outline methods for mixing and handling the gases, and the relevant battery arrangements. USE/ADVANTAGE - Drawbacks of other methods of  heating regenerative coke-oven batteries are avoided, and the proposed method is more economical in operation and the plant is simpler. Other advantages include the smaller amt.  of NOx produced.
Patent DE-3915079-A1 (DE)
Title: Adjustable back exercise machine - has top handles, foldable and lockable leg rest and length adjustable perpendicular connecting bar
Inventor: STOLL KURT
IPC: A63B21/002
Filed: 1989-05-09
Abstract: The back exerciser consists of a pivoting top handle (11) and a leg rest (12) connected by a length adjustable telescopic bar (10). The lower part (14) of the connecting bar is hinged (15) and lockable when folded. In its straight position the leg rest is placed against the upper thigh while pulling down on the handles. In its folded position the exerciser is used in a supine position, the leg rest being placed behind the knees. USE/ADVANTAGE - Back exerciser offering wider choice of exercises.
Patent DE-3919081-A1 (DE)
Title: Bicycle with chair type seat and back - has frame of sheet of aluminium or PMMA bent over along top and open underneath, with long tube and steering wheel
Inventor: RICHTER HELMUT
IPC: B62H5/00
Filed: 1989-06-10
Abstract: A chair seating type of bicycle is produced with almost parallel sides to its frame made by bending a sheet of aluminium or polymethyl-methacrylate, the top being bent round and the underside being open, so that the frame is made in one piece. ADVANTAGE - The bicycle is inexpensive. It provides handling and wide range of uses. It increases safety.
Patent DE-3930550-A1 (DE)
Title: Switching chamber for sulphur hexa:fluoride circuit breaker - has rated current contact in region of breaker axis, surrounded by power contact
Inventor: KONRAD MARCEL CELESTIN
IPC: H01H33/12
Filed: 1989-09-13
Abstract: In the SF6 filled switching chamber first the rated current contact opens, followed by a power contact. The  light arc is blown by a quanching gas stream. The rated current contact (1,2,3) lies in the region of the circuit breaker axis and is surrounded by the power contact (4,5). An annular quenching gas feed duct (6) opens between the rated contact (1) member and that of the power contact (4) in the  space of the switching path (30), at least at the side of the moving contact (1,4). A quenching gas discharge duct (7) surrounds the open parts of the power contact. The latter may consist of two contact members, each surrounded by a nozzle portion (8,9) in the OFF position. ADVANTAGE - Simple and compact design without insulators located in free gas flow of open breaker.
Patent DE-3935753-A1 (DE)
Title: Locking device for set screw, e.g. of fluid control device - is pretensioned latching organ on head of set screw engaging wall of threaded bore
Inventor: PRUESS LUDWIG DIPL ING
IPC: F16B39/32
Filed: 1989-10-27
Abstract: The locking device contains a radially outwardly pretensioned latching organ (8.1) on the periphery of the head section (6) of a set screw (1).  The latching organ makes contact with a housing wall (3) of a threaded bore (2) so as to prevent rotation. The set screw is made up of a threaded shaft section (5), a head section (6) and the latching part (8.1) all forming a one-piece component.  It can consist of injected plastic.  Alternatively, the head section and the latching part can be form-locking components. USE/ADVANTAGE - For locking a set screw which is sunk into a threaded bore and which has a threaded shaft section and a head section, e.g. for fluid control systems.  The locking arrangement ensures problem-free locking of the set screw even when it is subjected to high dynamic loadings.
Patent DE-3936838-A1 (DE)
Title: Connector to sheet-metal - has aperture between parallel slots in metal for lug and guide pieces
Inventor: RAETZKE JOERG
IPC: F16B21/09
Filed: 1989-11-06
Abstract: The locking connector secures a component to flat sheet-metal, being particularly for the locking member of an automotive tank cap. Two parallel slots (11,12) are formed in the metal (5), while there is a window-type locking aperture (7) between them. The component (1) has two T-shaped guide-pieces (3,4) inserted in the slots so as to engage behind the metal, also a locking lug (6) between them preloaded towards the metal, engaging in the aperture when the guide-pieces are inserted for a  sufficient distance, so as to prevent movement in the rearwards direction. USE/ADVANTAGE - Locking connector is simple to install and easily released for repair work.
Patent DE-3936894-A1 (DE)
Inventor: SCHMID JOHANN DIPL ING
IPC: B60R16/02
Filed: 1989-11-06
Abstract: To obtain a reliable multiplex circuit arrangement, in particular for controlling consumer stations in motor vehicles, which comprises a bus system, the end of each data line (LD) has a bidirectional bus coupling network (station network SN or electricity distribution supply network VN) comprising two analog amplifiers (OP1, OP2) connected in opposition. At least several central bus coupling networks (electricity distribution supply networks VN) are assembled to form a star-shaped central bus electricity distribution arrangement (ZVA).
Patent DE-3938104-A1 (DE)
Title: Spacer ring for fixing onto pipes - consists of annular segments with bridge in two parts
Inventor: MUELLER KURT
IPC: B65D59/00
Filed: 1989-11-16
Abstract: The spacer ring (2) for use on the outer surface of pipes is made of annular segments (4) each of which has two lateral, space-apart pads (8) joined by a bridge (10) to form a ring. The bridge consists of two parts one in the form of a round bar (12) and the other a ring segment (14) apart from it. A part (16) sticks out from the side pads (8) and has a tranverse hole (18) in which is open towards the inside of the ring (21) by a transverse slit (20). The round bar (12) of another ring-segment part is pressed into the transverse hole via the slot. USE/ADVANTAGE - The spacer ring clings adequately to the ring and is securely fixed and can be used for various diameters of pipes.
Patent DE-3942562-A1 (DE)
Inventor: BEDERNA FRANK DIPL ING
IPC: F02D41/24
Filed: 1989-12-22
Abstract: In the proposed process and device, the force with which the control element is depressed, or the pressure exerted on the control element, is measured and, when a given threshold value is reached, the control-element position corresponding to this threshold value is defined as the terminal position.
Patent DE-4002093-A1 (DE)
IPC: E05B47/00
Filed: 1990-01-25
Abstract: The invention relates to a lock releasable by the insertion of a locally magnetised key card (8) in which the leading edge (8') of the key card (8) conveys a bolt (25) released by the magnetic holding pins (31) with it, and, to provide a particularly reliable version, proposes that there is a mating coupling between the key card (8) and the bolt (25) which is automatically released only shortly before the fully withdrawn position of the bolt (25).
Patent DE-4004233-A1 (DE)
Title: Electrical coupling for electrical or optical signal transmission unit - uses flat flexible ribbon loops to connect parts with relative rotational movement
Inventor: HASEGAWA MASAHIRO DIPL ING
IPC: H01R35/04
Filed: 1990-02-12
Abstract: The electrical transmission unit is used to allow signals to be passed between a part (10) that can rotate about an axis (9) and a fixed housing (11). Within the housing internal annular space is a flexible ribbon cable (12). The two housing parts are coupled by a cylindrical sleeve (10a). The flat ribbon cable is wound in a number of spiral loops within the space. One end is fixed to the moving part and the other the stationary unit. The cable can have either electrical or optical fibre cores. A ring gear may be built into the unit to allow an electric motor to be used.
Patent DE-4007789-A1 (DE)
Title: Socket housing for hip joint prosthesis - has increased stiffness in upper part and slots cut in lower part
Inventor: THULL ROGER PROF DR ING
IPC: A61F2/34
Filed: 1990-03-12
Abstract: The hip joint prosthesis has a socket housing (1) which is elastically deformable and is fitted in the acetabulum without the use of cement. When the housing is fitted in place it has its greatest rigidity in the upward direction whilst its elasticity increases in the downward direction. To achieve this variation in elasticity, the wall of the upper part is thicker than the wall of the lower part and two or more slots are cut in the wall of the lower part at a distance from and parallel to the equatorial plane. USE - Hip joint prosthesis.
Patent DE-4010469-A1 (DE)
Title: Thread waxing monitor - has proximity sensors to register diminishing mass of paraffin body and stops action when it is at min. size
Inventor: ZITZEN WILHELM
IPC: B65H63/00
Filed: 1990-03-31
Abstract: To monitor the action in waxing a thread, where it passes over a body of paraffin or wax or a mixt., a proximity sensor registers the min. size of the body which decreases as material is taken off by friction contact with the thread. An electrical switch system is activated by the sensor signals to stop the winder and trigger a warning signal. An electronic proximity sensor (22,32) at the waxing station (8) works with an indirect action without contact with the paraffin body (9) according to its min. size (9'). The sensor (22,32) is connected (24,25; 34,35,36) to an electric switch assembly (23) which, in turn, is connected (26,27,28) to the drive (39)of the winder (1) and to an indicator (29,30). The switches (R,31) disconnect the drive (3) at the winder (1) when the sensors (22,32) register the min. size (9') of the paraffin body (9) and switch over or switch on the indicator (29,30). The sensor (22,32) is a magnetic field sensor. ADVANTAGE - The system ensures that the thread is fully treated with the paraffin, without risk that stretches would be omitted through insufficient wax material.
Patent DE-4011150-A1 (DE)
Title: Motor vehicle rear view mirror system - includes auxiliary mirror on outside of rear windscreen giving ground view
Inventor: DEINLEIN-KALB HANS
IPC: B60R1/00
Filed: 1990-04-06
Abstract: The rear view mirror system has an auxiliary mirror (5) mounted at the back of the vehicle on the outside of the rear window (8) and cooperating with the internal rear view mirror (4), above the front windscreen to allow the driver to see the road immediately behind the vehicle to facilitate reversing. Pref. the auxiliary mirror (5) has an effective width corresp. to that of the rear view mirror (8) and is supported at two or more points via pivot mountings, allowing it to be adjusted under control of an electric setting motor.
Patent DE-4011170-A1 (DE)
Title: Switching surge limiting circuit for AC power source - has phase angle control for delaying switch=on point of source w.r.t. occurrence of natural zero of system voltage
Inventor: KONSTANZER MICHAEL
IPC: H02H9/00
Filed: 1990-04-06
Abstract: A circuit for limiting the switching surge which attends the connection of a transformer coupled A.C, power source (1) to the system mains (25, 26) has a variable phase angle setting circuit (60, 61) to delay the application of the system voltage (25, 26) to the primary winding (4) w.r.t. the occurrence of a natural system voltage zero at the instant of switch-on. Control of the permissible point of switch-on is achieved via the timed depression of trigger potentials to triacs (23, 45) and (84, 83) in accordance with the determination of phase angle. ADVANTAGE - Takes into account polarity of residual magnetism in transformer core. Can be retro-fitted.
Patent DE-4013698-A1 (DE)
Title: Cleaning of small bore pipes - involves injecting hot cleaning liq. under pressure and drying with compressed air
Inventor: KORDTOMEIKEL JOSEF DIPL ING
IPC: B08B9/032
Filed: 1990-04-28
Abstract: The machine is used to clean the bores of small bore pipes. A clean liq. which is preferably heated is injected under pressure into one end of the pipe (1) so that it flows through the length of the pipe and flows out at the other end. Compressed air, also pref. heated, is then injected into the pipe in order to dry it. The pressure of the cleaning fluid or of the compressed air is measured at each end of the pipe. The level of these pressures indicates if the bore is perfectly clean or if particles of dirt are present. USE - Cleaning small bore pipes.
Patent DE-4019063-A1 (DE)
Title: Triangular warning sign for use with vehicle - has sign supported at its base by legs which allow sign to be set up quickly
Inventor: BIEDENBACH GUENTER
IPC: B60Q7/00
Filed: 1990-06-15
Abstract: Triangular warning sign suitable for carrying in a vehicle in which the sign sections (18) are moveable up from the base sections (17) of the warning sign (10) by means of a hinged link (19) about a swivel axis. In the operating position the sign is supported at its base by legs (12, 13) which allow the sign to be set up quickly. ADVANTAGE - Warning triangle for a vehicle which folds away into a compact bulk when not in use.
Patent DE-4020896-A1 (DE)
Title: Air cooling system for extruded profiles - by gradually increasing room temp. gas flow to supersonic through, ring nozzle
Inventor: HOFMANN HANS-JUERGEN DIPL ING
IPC: B29C48/90
Filed: 1990-06-30
Abstract: A process and equipment for cooling the exterior surface of extruded thermoplastic profiles with a gas stream below room temp.  are described. Gas from a supply is at room temp and is fed to an inward tapering ring-shaped channel which forms a subsonic ring nozzle. The incoming gas is accelerated to sonic velocity and then, in an outward tapering ring channel which forms a supersonic ring nozzle, accelerated to supersonic velocity. The temp. and pressure drop during the expansion of the gas stream causes a direct cooling effect on the extruded  profile passing through the centre of the ring. The gas can be directed against or with the direction of profile movement. The equipment has a ring chamber and at least one inlet pipe for gas and is formed of a fixed and an adjustable cooling lip which can be adjusted relative to each other. USE/ADVANTAGE - For cooling the exterior of extruded profiles. The process is technically and economically inexpensive yet gives effective cooling.
Patent DE-4021470-A1 (DE)
Title: Method of clamping cutters on slitting roll shaft - has radial clamping pin actuated by rotatable collar on cutter mounting sleeve
Inventor: MAYER BERND
IPC: B26D7/26
Filed: 1990-07-05
Abstract: The circular cutters of slitting rolls are secured to mounting sleeves which slide onto the machine shaft and are clamped at the required spacing. A collar (22) has an internal cone (23) and a thread (25) enabling it to be screwed axially along the sleeve (12). In a radial hole in the sleeve is a pin (24) with a sloping end (23) engaging with the collar. - At the shaft end, the pin engages with a slot (27) running along the shaft. Rotation of the collar by an actuator forces the pin against the shaft, clamping the sleeve and cutters in position and preventing rotation on the shaft.
Patent DE-4041126-A1 (DE)
Title: Hydrostatic gear with pump and motor in gear housing - has two groups of pistons, with tapered washers, plate cams and cylindrical drums
Inventor: WOLTERING LEONHARD DIPL ING
IPC: F04B1/20
Filed: 1990-12-21
Abstract: The hydrostatic gear has a pump (18) and motor (19) in a gear-housing (22). A group (23) of axially parallel, circular pump (18), pistons (3) is concentric with a group (24) of axially parallel, circular motor (19), pistons (6). A tapered pump (18)-washer (5) and a tapered motor (19)-washer (7) are on one end of a cylindrical drum (25) containing a group (23) of pistons (3); a pump (18)-plate cam (10); and a motor (19)-plate cam (26) on the cylindrical drum's (25) other end. The pump's (18) plate cam (10) is immovably fixed to the gear housing (22). Another cylindrical drum (27) takes the other group (24) of pistons (6). Another cylindrical drum (27) takes the other group (24) of pistons (6). Both cylindrical drums (25,27) turn in relation to each other and have a concentric annular intermediate wall (28) between them. ADVANTAGE - The compact, light, continuously adjustable gear is for combustion engine components.
Patent DE-4103754-A1 (DE)
Title: Acoustically insulating wall - is constructed from hollow bricks filled with blocks of acoustic insulation
Inventor: RIMMELE RAIMUND
IPC: E04B1/84
Filed: 1991-02-07
Abstract: The wall to provide acoustic insulation is constructed from hollow bricks (11) with the open faces being at the top and bottom of each brick. The interior of each brick is then filled with lightweight acoustic insulation. This acoustic material is in the form of blocks (14,15) with sloping sides which enable the blocks to be wedged against each other inside the brick cavity. This method of construction produces a lightweight acoustically insulating wall at relatively low cost. USE - Acoustically insulating walls.
Patent DE-4104666-A1 (DE)
Title: Lockable articulated joint for furniture - has bearing housing with rotary pin, each with recess and locking element
Inventor: SAHIN FERIDUN
IPC: F16M11/06
Filed: 1991-02-15
Abstract: The lockable articulated joint for use on furniture elements has a bearing housing (6) contg. a rotary pin (5) connected to a swivel component. The bearing housing and pin each have at least one recess (8,11) whereby at least one locking element which can be moved from outside by an unlocking element, bridges the associated recesses in the bearing housing and rotary pin in the locked position and thus locks the rotary pin relative to the housing. The locking element can be connected to a spring element (10) through which the locking element is biased in the locking direction. ADVANTAGE - Easily unlockable joint providing a rigid connection.
Patent DE-4105776-A1 (DE)
Title: Device for detachably connecting two parts - has mushroom head bolt and associates wire spring
Inventor: VOLZ WOLFGANG DIPL ING
IPC: F16B21/07
Filed: 1991-02-23
Abstract: The fastening device for detachably connecting two parts such as a decorative wooden strip to the front panel of a housing inside a vehicle has at least one bolt (4) with mushroom head (3) on the first part whilst the second part (1) has a guide opening for each bolt (4) behind which there is a U-shaped wire spring (2) substantially at right angles to the guide direction (A) of the bolt (4) so that the bolt (4) can be passed through between the arms (2c,2d) of the spring. Each spring (2) is held on the second part by its curved centre web area (2e) connecting the two arms whereby the ends of the arms (2f,2g) engage in guide elements (7,11a). By moving at least one (7) of the guide elements, the ends of the wire spring can move between two end positions (2',2'') wherein in one end position the spring arms release the guide opening and in the other position (2'') engage behind the bolt head (3) pressing resiliently both against its rear side and against the bolt circumference. ADVANTAGE - Play-free locked connection can be achieved which is easy to release by moving the associated guide element of the wire spring.
Patent DE-4106403-A1 (DE)
Inventor: RAZVAN CORIOLAN
IPC: C08K3/014
Filed: 1991-02-28
Abstract: The invention discloses compounds of general formula (I), wherein X<3+> is a trivalent metal; Y<2+> is a divalent metal; A<n-> is an inorganic or organic anion of valency n; 0.1 < a < 0.5; 0 < b < 1; 0 < c < a + 2; 0 < d < a + 2; 0 < m  < 2; and n is an integer, where c.n + d = a + 2, except for compounds in which d = 2. A method for preparing them is also disclosed. The compounds of the invention are particularly useful as stabilizers for halogenated thermoplastic resins, in particular PVC.
Patent DE-4106679-A1 (DE)
Title: Tool for embossing a metal workpiece - has spring loaded punch which is automatically released when spring is fully compressed
Inventor: SCHUSTER DANIEL
IPC: B44B5/02
Filed: 1991-03-02
Abstract: The tool has a punch (6) which slides in a guide (3) which is mounted in a telescopic housing (1a,1b). The lower part (1a) of this telescopic housing can be pushed upwards relative to the upper part (1b). The lower part of the housing supports a pair of jaws (12,13) which grip the punch (6) and move it upwards against the compression spring (9). When the jaws reach the upper limit of their travel, they abut against a conical surface (4) which forces the jaws apart and releases the punch (6). The punch is then driven downwards by the spring and embosses the workpiece. USE/ADVANTAGE - Marking of metal workpieces by a tool which is easy to handle.
Patent DE-4108304-A1 (DE)
Title: Fusing silicon water to glass backing plate - using high voltage and applied heat to secure silicon waters and ultra-thin membranes to glass backing plate
Inventor: CHLEBECK JUERGEN
IPC: H01L21/58
Filed: 1991-03-14
Abstract: The unit is enclosed within a protective hood (20) and comprises a lower holder/electrode supported by a heating plate (17) and featuring three polished concentric depressions, the first to hold the glass backing plate, the second to hold the silicon wafer and a third to prevent damage to the upper face of the wafer, and an upper cover/electrode, mounted on a supporting arm (7) and comprising a cover plate (5), a central guide post (6) and an upper restraining plate (9). The cover plate is insulated (8) from the hydraulically-operated supporting arm and features a concentric separation mass (12) with pegs (13) that protrude through the cover plate. In operation, the silicon wafer and backing plate are placed in the heated lower holder/electrode and the hydraulically operated supporting arm lowered, pressing the upper cover/electrode against the backing plate. A voltage (19) is then applied across the upper cover/electrode and the lower holder/electrode, fusing the silicon wafer to the backing plate. The supporting arm is then lifted and the weight of the separation mass acting via the associated pegs ensure that the wafer separates from the upper cover/electrode. USE/ADVANTAGE - For making X-ray masks. Reduced setting time and contamination risk when compared to adhesive bonding.
Patent DE-4111377-A1 (DE)
Title: Gas sampling probe - has exchangeable gas filter fitted to removable lid of probe housing
IPC: G01N1/22
Filed: 1991-04-09
Abstract: A gas sampling probe has a suction pipe (10) for drawing dirty gas into a housing (20) having a removable lid (26) fitted with a removable hollow filter body (34) through which the dirty gas flows. A clean gas line (48) extends from the interior clean gas side of the filter body into the lid (26) and can be coupled, during fitting of the lid, to a clean gas connection line (52) formed in the housing (20). USE/ADVANTAGE - The probe is useful for providing analysis samples of gases from pyrotechnic processes and from the metal producing, basic materials or foodstuff industries. It can be used in confined spaces and facilitates safe replacement of the filter element.