baber/WOPTO huggingface dataset:
Patent DE-4027596-A1 (DE)
Inventor: DEGEN WILHELM S DIPL ING
IPC: E02D7/18
Filed: 1990-08-31
Abstract: Method for producing a narrow or slit wall (42) in soil (22) by means of a driver (10) with at least two and preferably three vibrating tubes (I, II, III) and guide blades (28, 30, 32) between the vibrating tubes. Following penetration of the driver into the soil, during the withdrawal process of the latter, injection material (40, 44) is loaded into the drilled cavities. During the next work step, the driver is lowered into the soil so that the rearmost vibrating tube (I) is lowered into the still-soft injection material (40) which was added during the previous withdrawal of the foremost vibrating tube (III). By monitoring the power draw of the vibrating motor on the rearmost vibrating tube (I) and regulating this power draw to keep it to a minimum value, removal of the rearmost vibrating tube from the still-soft injection material (40) is prevented. As a result the seal between the successive sections of narrow wall (42) is ensured. Continuous abutting of the paths (40, 44) produced by the individual vibrating tubes ensures the tightness of each wall section.
Patent DE-4027727-A1 (DE)
Inventor: STAEDTLER WALTER
IPC: A01D34/30
Filed: 1990-08-31
Abstract: A reaper or mowing attachment for combine harvesters, especially for harvesting rape, has a horizontal cutting unit (19) and vertical cutting units (11). At least the horizontal cutting unit (19) is driven by a hydraulic drive motor (22). In order, for example, to reduce the seed losses during the harvesting of rape as far as possible, an elastic vibration-damping coupling (25) having a high centrifugal mass is arranged at least between the drive motor (22) and an eccentric drive (24) of the horizontal cutting unit (19). Moreover, the vertical cutting units (11) are assigned vibration-damping devices. <IMAGE>
Patent DE-4032534-A1 (DE)
Title: Negative pressure booster for vehicle braking system - makes use of U=shaped component with rubber spring layers attached
Inventor: FELLINGER ROLF
IPC: B60T13/57
Filed: 1990-10-13
Abstract: The negative pressure brake booster is for a vehicle braking system. The axial movement of the two control housing components is defined by a U-shaped part working in conjunction with two contact surfaces. The U-shaped part (17) is formed by a stamped component whose arms (28) are provided on the sides directed towards the contact surfaces with elastic spring elements (34) in the form of layers of rubber. USE/ADVANTAGE - Brake booster having reduced actuation noise while maintaining the required response and release times.
Patent DE-4037147-A1 (DE)
Title: Drilling tool - has drill shaft with central through channel and drilling head incorporating diamonds
Inventor: LIND STEFAN
IPC: B28D1/14
Filed: 1990-11-22
Abstract: The tool is connectable via a screw union with the drive shaft of a drilling machine. The drill shaft has a retention union (6) at its end opposite to the drill head (2), which is tensioned by a cap nut (7) screwable onto the drive shaft (8) against the face side of the shaft (8). The retention union has centering and sealing surfaces corresp. to the drive shaft. The centering surface of the retention union is the cover surface of a pin (11) aligned with the drilling tool axis. The pin on the retention union is formed as a blunt cone which engages in a corresp. hole in the drive shaft. USE - To produce cylindrical bore holes with back cutting in a facade plate.
Patent DE-4100615-A1 (DE)
Inventor: BAEHR THEODOR
IPC: G01B7/12
Filed: 1991-01-11
Abstract: A device for the measurement of the diameter of a body such as a cylinder, more particularly in the form of a workpiece on a roll grinding machine, having a contact wheel adapted to run on the surface of the body and a first rotational pickup (angle encoder) centrally coupled with or provided with a the contact wheel, and a second rotational pickup, which is adapted to indicate at least full revolutions of the body. The cylinder is coupled with the second rotational pickup (angle encoder), which like the first rotational pickup has high pulse rate for each measurement operation one respective start pulse and end pulse of one of these two pickups is utilized in order, with corresponding pulses of the other of the pickup, to calculate the diameter of the roll. A computer is provided which, by interpolation in each measurement operation of the registered pulses of at least one of the pickups, produces at least one intermediate pulse series with increments, which are respectively smaller than the fixed increments of the one pickup, of which one corresponds with such accuracy to the one end measurement pulse received approximately simultaneously of the one or normal pulse series of the other rotational pickup.
Patent DE-4105547-A1 (DE)
Title: Flat illuminated display esp. for symbols and lettering - has gap between translucent lettered cover and light conductive component cross=sectioned for diffuse reflection from rear face
Inventor: HEYM DETLEF
IPC: G09F13/04
Filed: 1991-02-22
Abstract: Characters or symbols are bonded, printed or etched on a translucent plate (L) of frosted glass which is thickened (M) slightly at points opposite the two rows of small lamps (Q) recessed (A) into a light conductive component (K), and backed by reflectors (E) with angled boundary surfaces (B) for uniformly distributed diffuse reflection (Y). Light is incident on the front surface (V) of the light component (K) mainly at angles which exceed the limit for total internal reflection. The air gap enhances uniformity of illumination. USE/ADVANTAGE - On e.g. vehicles or aircraft, max. use is obtd. of uniformly bright surface without additional framing.
Patent DE-4107054-A1 (DE)
Title: Flight path correction device for munition - with control of gas feed to nozzles by slot arrangement for precision correction
Inventor: BUECHELE-BUECHER SIGFRID DIPL
IPC: F15D1/00
Filed: 1991-03-06
Abstract: Flight path correction device for munition includes several gas outlet nozzles (2, 3, 4) with nozzle inlet bores (5, 6), which can be connected to an axial inflow bore (9) and a radial outflow opening (11) of a rotary body (8) connectable to a gas generator, (7) and rotated by an electric motor (10). The outflow bore is in the form of a slot, inclined to the circumferential direction. Nozzle inlet bore is displaced axially w.r.t. the outflow opening so that it can be progressively overlapped by the opening. ADVANTAGE - Precision corrections can be made to be flight path by use of the slot in place of a circular opening.
Patent DE-4107061-A1 (DE)
Title: Anaesthetic evapn. and dosing appts. - has evapn. chamber contg. filling level control system
Inventor: FALB WOLFGANG
IPC: A61M16/18
Filed: 1991-03-06
Abstract: In appts., a bypass stream (4) is fed from a gas inlet opening (2) via a by-pass valve (5) to a gas outlet opening (3) and an evapn. chamber stream (6) is passed from the gas inlet opening (2) through a liq. anaesthetic-filled temp.-controlled evapn. chamber (8) and through an evapn. chamber valve (9) into the by-pass stream (4) at a point down-stream of the by-pass valve (5). The novelty is that (i) the evapn. chamber (8) is controlled at a temp. (T) below the b.pt. of the liq. anaesthetic (7) and has a level controlled set to a target filling level; and (ii) the evapn. chamber stream (6) is fed into the evapn. chamber (8) for anaesthetic enrichment such that it flows through the liq. anaesthetic (7) against the pressure of the anaesthetic liq. column determined by the target filling level. ADVANTAGE - Liq. anaesthetic feed into the evapn. chamber is improved and the dosing precision of evaporated anaesthetic is increased.
Patent DE-4111961-A1 (DE)
Title: Urine flow control device for bladder drainage catheter - responds to remote control signal, timer signal and/or pressure sensor signal
Inventor: JAGENBURG ANDREAS
IPC: A61M1/00
Filed: 1991-04-12
Abstract: The control device uses a blocking device (4), selectively blocking and releasing a flexible coupling hose (3) extending between the catheter (2) and a urine collection bag (9), in response to a control signal from a control stage (8). The control stage may respond to a received remote control signal provided by a hand-held remote control device (23), to a time control signal and/or to a pressure signal provided by a pressure sensor, detecting the urine pressure at the cathether or in the coupling hose (3). ADVANTAGE - Prevents bladder strain by urine retention.
Patent DE-4112441-A1 (DE)
Title: Tuner measurement device esp. for string instruments - has frequency measurement circuit with filter channels corresp. to number of strings played in chord
Inventor: KOLLER ROMAN
IPC: G10G7/02
Filed: 1991-04-16
Abstract: A frequency measurement device simultaneously detects the string vibration frequencies of a note via an acoustic pick-up or microphone. The note frequency measurement circuit has as many parallel filter channels as the number of simultaneously vibrating strings. A display indicates which strings are vibrating as well as their frequencies. A two-step selective frequency measurement method involves a learning step and an association step. ADVANTAGE - Eliminates additional work associated with conventional devices and indicates direction in which strings should be tuned for correct pitch.
Patent DE-4114976-A1 (DE)
Title: Mfr. of high temp. superconductors with melt-structured grain boundaries - comprises homogeneously distributing silver@ in film, heating superconducting part to 910-960 deg. C., cooling in inert atmos., then oxygen@ annealing
Inventor: RISSE GUNTER DIPL CHEM
IPC: C04B35/653
Filed: 1991-05-03
Abstract: Mfr. of high temp. superconductors with melt structured grain boundaries consists of first forming a device from superconductor material or a material of corresponding compsn. and then annealing this. The features of the process are as follows: in the material which forms the device 1-50 wt.% Ag are present distributed homogeneously, the superconductor part is then heated to a temp. over 910 and not above 960 deg.C., and held there pref. for 5-20 hrs., the part is then cooled in inert gas with 0.01-1.0 vol.% O2, pref. 0.3-0.5 vol.% or with a change from a low to a high O2-content within the range quoted, at a rate of 0.5-10 deg.K. per hour, pref. 1-5 deg. K/hr., to a temp. of 890-910 deg.C. Then the standard O2 ambient anneal is carried out. Esp. claimed is the use of YBaCuOx with 3-10 wt.% Ag. The first anneal is pref. carried out at 920-940 deg.C. Also claimed is the process in which the part is first heated to a temp. of 935-960 deg.C., then cooled fast at a rate of 20-100 deg.K. per hour to a value between 910 and 935 deg.C. and held there for 5-20 hrs. USE/ADVANTAGE - The process generates parallel continuous crystals in a deposited film, some of which extend for the length of the part and have a width of 20-30 micron and thickness of 1 micron. The process is used to mfr. superconductor films on a Ag-substrate for use in magnets, electrical machines or energy transmission cables.
Patent DE-4116431-A1 (DE)
Title: Optical measuring unit with optical receiver and first measuring cell - has light wave conductor with which optical transmitter and optical receiver form transmitting and receiving system for transmitting bidirectional signals
Inventor: HEIDEMANN ROLF DR
IPC: G01N21/03
Filed: 1991-05-18
Abstract: The light signals are bidirectionally transmittable between the transmitting and receiving unit (1) and the first measurement cell (3) over the light wave conductor (2), and are reflected at a metallised side wall (322) of the first measurement cell (3). The side wall (322) with the reflecting surface has a concave curvature. The optical measuring unit has at least one second measurement cell (4, 5, 6) at the light wave conductor, and this measurement cell with a reflecting side wall is connected across a light wave coupler (41, 51, 61). The method for operating the optical measuring unit transmits light signals from the optical transmitter (11) through the light wave conductor (2) in to the first measurement cell (3), and these signals are reflected back from the cell to the optical receiver (12). ADVANTAGE - Ensures simpler operation.
Patent DE-4127036-A1 (DE)
Inventor: GUENTHER HERBERT DIPL ING
IPC: B29C45/27
Filed: 1991-08-16
Abstract: In a hot runner nozzle (10) having electrical connections (28) at the side, a relatively broad flange element (18) continues as a narrower shaft (20) which has a number of thermal zones and through which passes an externally heated material pipe (22). At least one nozzle point (50, 50%) can be inserted in a thermally conducting manner into the high-strength foot (38) of the shaft; a separating collar (36) of the shaft (20) is adjacent, on the housing (12) side, to a high-strength jacket pipe (30) of high thermal conduction which has a recessed external diameter part (34). The heating pipe (26) is connected at the bottom, in a thermally conducting manner, to a metallic bush (40), which is thermally insulated at the top both from the separating collar (36) and from the heating tube (26) by an air gap (54, 44). A bearing ring (56) of low thermal conduction is arranged between the faces of the thermal conduction bush (40) and the separating collar (36). The nozzle points (50, 50%) are attached to the foot (38) through a shape and/or material connection at an angle between 0 DEG  and 90 DEG  to the shaft axis (A). The foot is centred on a mould insert (16) which is wedged in the housing (12) and may be divided. 
<IMAGE>
Patent DE-4127194-A1 (DE)
Title: Conveyor installation with carriage units - has units connected to one another and moving on downwardly open rail by horizontally rotatable support rollers
Inventor: AUTH RUDOLF
IPC: B65G17/20
Filed: 1991-08-15
Abstract: The carriage units are guided on the vertical plates of the rail by rollers rotatable around vertical connecting axes. Each unit (2) has movement part splicing plates (6,7) hinged on the horizontal support roller axis (8) and with end-located guide rollers (4) and angularly rigid vertical connecting axes (5) for drive transmission to the connecting carriage units. The movement part splicing plates have narrowed points and gable openings together with holes (6b,7b) with tubular sockets (11) for the guide rollers and bushes (9a) of the connecting axes. The connecting axes project through the lower slot of the rail (1). USE/ADVANTAGE - A conveyor installation which functions quietly and has a long working life.
Patent DE-4127448-A1 (DE)
Inventor: ZEISER PETER DIPL ING
IPC: B60C27/14
Filed: 1991-08-16
Abstract: An attachment device with a connection part (13) which has a connector pin (16) which is provided with a transverse bore (25) for a ball (24) with the aid of which it can be locked into a bore of a wheel screw or wheel nut is used for rapidly attaching the holding device of an antiskid device to the wheel screw or wheel nut of a wheel of a vehicle. In order to be able to remove the ball (24) from its locked position, the connector pin is constructed as a guide bushing for a locking bolt (18) with an annular groove (23) into which the ball (24) can temporarily move when the locking bolt (18) is displaced counter to the effect of a restoring spring (17). <IMAGE>
Patent DE-4130488-A1 (DE)
Title: New phosphorus-contg. thermoplastic polymers of vinyl] cpds. used for mouldings with improved flame resistance - prepd. by polymerisation in presence of 9,10-di:hydro-9-oxa-10-phospha-phenanthrene-10-oxide as mol. wt. regulator
Inventor: LINDNER CHRISTIAN DIPL CHEM DR
IPC: C08F8/40
Filed: 1991-09-13
Abstract: Polymers (I) of (co)polymerised vinyl cpds. of formulae (1A) or (1B) contain, incorporated, a 9,10-dihydro-9-oxa-10 -phosphaphenanthrene-10-oxide (II) of formula (2): R1 is H or Me; R2 is H, 6-12C aryl, COO-(1-6C)alkyl, CN, OOC-(1-6C)alkyl, or halogen; R3, R4 are H, 1-4C alkyl, or 6-12C aryl; X is O or NR4. (II) are commercially available. USE/ADVANTAGE - (I) as additives at 1-35% (all pts. wt.) to thermoplastically processable polymers, partic. polyamides, polyethers, polyether ketones, or polyblends of one or more thermoplasts and opt. impact toughness modifiers, conventional reinforcing agents, fillers, and stabilisers. (I) have improved flame resistance, melt rheology, and thermal and oxidn. stability, partic. showing less discolouration on heat-ageing.
Patent DE-4130904-A1 (DE)
Inventor: BECKERS PAUL DIPL ING
IPC: E05B49/00
Filed: 1991-09-17
Abstract: This method is intended, in particular, for an electronic identification and control system, comprising a primary electric unit (1) supplied with power and with electronic drive (9) and a secondary electric unit (13), these being coupled via inductive coupling elements (5, 16) and the primary unit sending out information-modulated power pulses which are received by the secondary unit, where they effect the activation of electronics (19) and initiate information-dependent responses which react on the primary unit and the reaction of which is evaluated. <IMAGE>
Patent DE-4133277-A1 (DE)
Inventor: ENDRES HELMUT DR ING
IPC: G01P5/06
Filed: 1991-10-08
Abstract: A device to investigate the flow movement in cylindrical components of reciprocating piston internal combustion engines, which flow movement is generated by a flow-guiding system located, as seen in the flow direction, upstream of the cylindrical component, has at least one rotatable measuring vane in the cylindrical component, the axis of rotation of which intersects the axis of the cylindrical component at an adjustable angle other than 0 DEG . A shaft supporting the measuring vane is connected to a device to evaluate the frequency of rotation and/or the position of the angle of the measuring vane in order to determine one or more parameters of the flow movement in the cylindrical component.
Patent DE-4134315-A1 (DE)
Title: Centrifugal manure spreader - has two delivery chutes over rotating disks driven by gearbox with adjustable position of discharge onto disks
Inventor: DREYER HEINZ DIPL ING DR
IPC: A01C17/00
Filed: 1991-10-17
Abstract: A centrifugal manure spreader has a manure container divided into two funnel-shaped delivery chutes. Underneath each chute is a rotating disk with radial vanes to distribute the manure falling upon it. The disks are driven by propshafts with flexible couplings from a central gearbox. The input shaft to this comes from a power take-off point on the tractor. Each chute has a paddle at the end of a vertical shaft near the delivery point, the shafts for each chute being driven at the top from a cross-shaft with a chain drive to one of the propshafts. The position of the delivery chute relative to the corresponding rotating disk is adjustable so that different spray patterns are obtained. An electronic controller is used to position the delivery chutes. ADVANTAGE -  Simple adjustment of spray pattern.
Patent DE-4134962-A1 (DE)
Title: Electric steam iron - has steam stop valve as gas- and watertight seal for water tank against the atmos.
Inventor: LINDSTAEDT BERND
IPC: D06F75/18
Filed: 1991-10-23
Abstract: The electric steam iron has a steam stop valve (2) which is always linked to the atmosphere, and gives a gas- and water-tight seal to the water tank (1) against the atmosphere. The initial valve drilling (5) is connected to the ventilation opening (12) through ventilating channels (10, 13). The filling opening (25) is at the upper side to take the steam stop valve (2), especially screwed into place. The steam stop valve (2) has a second valve drilling (6), in flow series with the first drilling (5), at an angled wall (18) of the valve chamber (4). The rolling weight (3) closes the second drilling (6) when the iron is tilted in the inactive position. The steam stop valve (2) is connected to a pressure compensation tube (9). The first valve drilling (5) opens into the pressure compensation tube (9). The chamfered (17) end of the pressure compensation tube (9) extends into the tank (1). The housing (19) for the steam stop valve (2) is a pot-shaped rubber component at the filling opening (15). The dia. of the first drilling (5) is smaller than the dia. of the second drilling (6). ADVANTAGE - The steam stop valve is less susceptible to scale, and is easily integrated into the water tank assembly.
Patent DE-4136678-A1 (DE)
Title: Calciner gas heat utilisation in titanium di:oxide mfr. by sulphate process - by indirect heat exchange of unpurified gas with medium used to concentrate acid
Inventor: MAUER JOSEF DIPL ING
IPC: C01B17/88
Filed: 1991-11-07
Abstract: In Ti02 prodn. by the sulphate process, energy is saved by using the heat of the waste calciner gas (I) for concn. of the waste H2SO4 (II). The unfiltered (I) is cooled by indirect heat exchange to a temp. above the dew point of the impurities present and the heated heat exchange medium (III) is used for heating in evapn. stage(s) for concn. of (II). (I) is pref. cooled to 190-230 deg.C, pref. in a heat exchanger of light alloy steel. (III) is pumped through the heat exchanger and evaporator(s) in a closed cycle and pref. is preheated on start-up. The waste heat from the evapn. stage(s) is used in pre-concn. stage(s). ADVANTAGE - The heat of (I) is used more efficiently than usual and no costly plant is needed. In an example (I) emerging from the calcine at ca. 350-400 deg.C was cooled to ca. 200 deg.C in an indirect heat exchanger, pref. of light alloy steel, and then to ca. 70 deg.C in a cooling tower. (III) was a heat-resistant oil or steam and was preheated to ca. 140 deg.C on start-up. This was heated to ca. 250 deg.C in the heat exchanger and circulated to a last evaporator, then at ca. 140 deg.C to a first evaporator, before recycling to the heat exchanger. (II), with an initial concn. of 23 (wt.)%, was pre-conc. to 28%, 34% and 60% acid in 3 pre-concn. stages operating at 60 deg.C, 85 deg.C and 110 deg.C, which could be heated with steam from the concn. stage(s). It was then conc. to ca. 76% acid in the first concn. stage at 140 deg.C and filtered to remove pptd. metal sulphates before concn. to 86% acid in the last stage at ca. 250 deg.C and recycled to the Ti ore or slag decomposition stage of mfr. Since (I) did not come into direct contact with (II), there was no need to purify (I) before heat exchange or (II) to remove impurities introduced by (I). Most of the heat in (I) was re-used in the process, making the energy balance esp. favourable, the rest of the heat could be re-used as warm water from the cooling tower.
Patent DE-4137663-A1 (DE)
Inventor: SEEBACH DIETER PROF DR
IPC: C07D233/38
Filed: 1991-11-15
Abstract: 2.1. The said compounds are to be prepared as economically and cleanly as possible. Depending on the costs of the starting compounds, an optimisation should be possible with respect to the necessary process steps, the yield and/or the purity. Complicated process steps such as extractions and problematical solvents such as dichloromethane should particularly be dispensed with. 2.2. The 1,3-imidazolidin-4-ones of the general formula <IMAGE> are obtained pure in their preparation, in particular by precipitation, it being possible to employ an optically active acid to 0.5 - 0.8 eq for resolving the racemate. The undesired enantiomer can be racemised in an inert solvent, and the cyclisation to the imidazolidinone can even be carried out by means of the optically active acid, after which the resolution of the racemates takes place directly. 2.3. The 1,3-imidazolidin-4-ones are useful starting materials for the preparation of branched or unbranched, proteinogenic or non-proteinogenic  alpha -aminoacids by means of diastereoselective alkylation and subsequent ring cleavage.