baber/WOPTO huggingface dataset:
Patent DE-3910600-A1 (DE)
Inventor: KOTITSCHKE GERHARD
IPC: D21G9/00
Filed: 1989-04-01
Abstract: The invention concerns a single-screen drying installation in which the paper web (9) to be dried runs, together with a continuous screen belt (8), over several drying cylinders (10, 11) in turn, all of which lie outside the continuous screen loop. Between each pair of drying cylinders is a guide roller (12) which lies inside the screen loop. The screen belt and paper web run from a first cylinder (10) to the guide roller (12) and, from there, on to the next cylinder (11). The guide roller (12) has a perforated shell. Extending over the part of the guide roller shell surface not covered by the screen belt is a suction box (20) which generates an underpressure in the interior of the guide roller (12) in order to hold the paper web (9) against the screen belt (8). Mounted on the suction box in the vicinity of the point (A) at which the paper web separates from the first cylinder (10) is a stripper (30) for the boundary air layer (L) entrained by the screen belt (8).
Patent DE-3912923-A1 (DE)
Title: Test device for revealing live conductor and polarity - has hand-held indicator unit requiring only one application of test prod. to determine voltage presence and direction
Inventor: REINBOLD ANDREAS
IPC: G01R19/14
Filed: 1989-04-20
Abstract: A device for determining the voltage relationship and polarity of a network conductor w.r.t. the system voltage comprises a test prod. (c) and two cup=on contacts (A,B) contacts (A,B) are connected to points which are at full system potential and test prod. (c) is applied to the conductor under test. By observing the indicator elements (4,5) e.g. Lamps or Led's a conductor potential can be identified as (a) close to system potential (A) when element (S) is lit or (b) close to potential (B) when element (4) is lit. optional link (15) with Led (IT) indicates DC system polarity or presence of AC. USE/ADVANTAGE - For situations where large number of network checks required.  Requires only a single test to determine polarity of any conductor.  Convenient and timesaving.
Patent DE-3913827-A1 (DE)
Title: Storage device for compact discs or audio cassettes - is divided into compartments by upright partitions thicker than width of grooves into which they slide
Inventor: SEIPELT PAUL
IPC: G11B33/04
Filed: 1989-04-24
Abstract: The roof (2) and the floor (3) of a box (1) open towards the front, incorporate parallel front-to-back grooves (6) into which vertical partitions (7) can be inserted to segregate compartments for disc or cassette storage on-end. The top and base of each partition are stepped to provide guidance surfaces ensuring that the partition remains upright in a groove which can be reduced in width without loss of stability. ADVANTAGE - Has variable structure which allows stored recordings to be arranged in a manner which is easily taken in at glance.
Patent DE-3916565-A1 (DE)
Inventor: MUENDLEIN WERNER
IPC: B23B29/034
Filed: 1989-05-20
Abstract: A tool for use in machine-tools comprises a basic body (10) and at least one tool holder (14) which can be adjusted radially with respect to the basic body (10) and releasably connected to the latter. The screw drive (26) has a threaded spindle supported at both ends in the basic body (10) so that it can rotate but cannot slide, and a sliding block (32) arranged by means of a female thread on the threaded spindle (28). The sliding block is guided in a slide guide (30) of the basic body (10) and can be releasably coupled with the tool holder (14).
Patent DE-3918011-A1 (DE)
Title: Holding down spring for part lined disc brakes - has two swivel arms with wings acting at one end on brake blocks
Inventor: KLIMT ULRICH
IPC: F16D65/097
Filed: 1989-06-02
Abstract: The holding down spring for brake linings comprises two resiliently swivelling arms which in the non-biassed state form a V shape with each other. On each arm there is a first wing attached, pref. inclined, so that one wing end can engage into a rear cut recess in the housing whilst the opposite wing end is resiliently supportable on the back plate of at least one brake block.$  Each arm pref. has a second wing which extends in the arm plane so that, supported on the inside of the housing, it can dispense radial forces received via the first wing to the housing.$  ADVANTAGE - Easier design whereby the V-shaped arms need only be pressed together lightly for insertion into the opening.
Patent DE-3918436-A1 (DE)
Title: Metal T=section supporting glass roof - are made from two flat bars joined together with screws
Inventor: SEELE GERHARD
IPC: E04D3/06
Filed: 1989-06-06
Abstract: The framework, for supporting a glass roof or a glass facade, is constructed from metal T-sections (2). Each T-section consists of two flat bars (4, 6) with the larger bar (4) forming the web of the T-section and the smaller bar (6) forming the flange. The smaller bar (6) is fastened to the narrow long side of the larger bar (4) by screws (18) which pass through holes on the longitudinal centre line of the smaller bar (6) and engage tapped holes (20) in the narrow long side of the larger bar (4). USE - Glass facades and glass roofs for buildings.
Patent DE-3918597-A1 (DE)
Title: Thermal converter for IC engine exhaust gases - raises exhaust gas temp. when necessary to conversion temp. by heat from exhaust gas fed thermal reservoir
Inventor: SCHATZ OSKAR DR ING
IPC: F01N3/26
Filed: 1989-06-07
Abstract: The exhaust gases of an I.C. engine (10) pass through a thermal converter (14) to ensure a low emission level.  With low exhaust gas temp., the thermal converter temp. is maintained by heat from a thermal reservoir (16). The reservoir, which stores heat from the exhaust gases, is arranged in parallel with a bypass (30) between the motor and converter.  Heat can also be transferred to and from the thermal reservoir via a secondary heat exchanger circuit. ADVANTAGE - Low emission level met under all operating conditions.
Patent DE-3918950-A1 (DE)
Inventor: NEUMANN GERHARD
IPC: B23K9/32
Filed: 1989-06-09
Abstract: The water-cooled high-current electrical connector, which is intended in particular for automated welding systems, comprises a socket part (1) and a connector pin part (2) engaging therein, which, if required, can rotate relative to one another. In order to be able to transmit high currents at low voltages without the risk of the sprung contacts lifting off - while at the same dispensing with the arrangement of welding transformers on the moving robot arm - it is proposed to arrange in the socket part (1) a plurality of contact ring groups (3), axially one behind the other, each of which comprises at least one slotted socket outer contact ring (4), with a contact surface (5) resting elastically on the inner surface of the socket part (1), and at least one slotted socket inner contact ring (6), with a contact surface (7) resting elastically on the connector pin part (2) in the engaged state, the socket outer contact ring (4) and the socket inner contact ring (6) of each contact ring group (3) having conical contact surfaces (8, 8'; 9) matched to one another. 
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Patent DE-3918953-A1 (DE)
Title: External rotor motor without a commutator
Inventor: CAP HEINRICH ING GRAD
IPC: H02K29/08
Filed: 1989-06-09
Abstract: External rotor motors having a large-area mounting flange are relatively noisy because the vibrations of the motor are transmitted to the flange without any damping. In doing so, the flange acts like a membrane. In order to reduce the noise, the space (17) between the flange (8) and the stator (15) of the motor (2) is filled with a synthetic material. Such motors are used, for example, as a drive for disk memories. <IMAGE>
Patent DE-3921095-A1 (DE)
Title: Finely porous granulate or moulding prodn. - by adding hydraulic binder to foam and mineral dust components before mixing
Inventor: KRAUSE HEINZ JOSEF
IPC: C04B38/10
Filed: 1989-06-28
Abstract: Prodn. of granulates or mouldings from mineral dust, foam and hydraulic binder comprises (a) producing a first mixt.  by dry mixing the mineral dust (e.g. fired clay dust, flyash, sand or the like) and the hydraulic binder and then mixing with water to form a pulp-like material; (b) producing a  second mixt. by mixing the foamer with water to form a foam to which further hydraulic binder is added and mixed; and (c) combining and mixing the two mixts.. USE/ADVANTAGE - The process is used to produce cast blocks or a finely porous concrete granulate. It provides optimal distribution of the hydraulic binder in the foam and produces an extremely fine pore structure which is not destroyed by further mixing.
Patent DE-3922002-A1 (DE)
Title: Method for killing weeds on roads and paths - involves use of high temp. gas jet directed onto weeds
Inventor: LANG STEFAN
IPC: A01M21/04
Filed: 1989-07-04
Abstract: The method is for destroying weeds in public places. It is esp used for removing weeds from roads, gutter and paths, using a liq spray. A gas jet (8) at a temp between 200 deg. C. and 700 deg.  C, pref between 300 deg. C. is used on the weeds which are  killed by drying out and/or charring. The gas jet is enclosed in a rectangular box with an aperture (4) in its underside (2). There ' is an exhaust collector (9) near the gas jet with a pipe leading in an outlet with filters (11). USE/ADVANTAGE - Hot gas jet destruction of weeds on roads.  No time is lost in preparation.
Patent DE-3924496-A1 (DE)
Title: Direct flow water turbine - has rotor of disc with angle iron blades, fixed to turbine shaft
Inventor: SEMELROT DRAGO
IPC: F03B1/00
Filed: 1989-07-25
Abstract: The turbine consists of a housing of cylindrical jacket and two covers, with a rotor, and an inlet, directed tangentially to the rotor, and a radial outlet. The rotor is formed by a shaft, held in the covers, and carrying a rotor wheel with blades. The rotor wheel (11) is formed by a disc (20), which is fixed to the shaft (19) at a distance to the covers (13). Both sides of the disc carry blades (14), formed by angled iron sections (23). The disc has a tubular hub (21), fixed to the shaft by a spring (22). USE/ADVANTAGE - Adjustable water turbine is easy and economical to mfr.
Patent DE-3927161-A1 (DE)
Title: Reinforcing concrete slab for floors - has additional reinforcing rods in areas near rectangular cut=out
Inventor: KESTING LORENZ
IPC: E04B5/02
Filed: 1989-08-17
Abstract: The invention concerns a reinforced hollow concrete slab for forming the floors or ceiling of a building. The slab (1) is of rectangular form and has parallel longitudinal holes of circular cross-section extending from one end of the slab to the other. A rectangular piece (11) is cut out from one end of the slab (1). The edges of the remaining part of the slab are provided with additional reinforcing rods (19, 20) which extend over the full width of the slab (1) and rods which extend over the tongue left by cutting away the piece (11). USE - Concrete slabs for floors etc.
Patent DE-3932085-A1 (DE)
Title: Hand operated auxiliary drive - has hand wheel engaged by pressing plunger against resisting spring
Inventor: ENG PETER
IPC: G05G1/08
Filed: 1989-09-26
Abstract: A shaft (7) connects with a transmission that is normally rotated by a motor. Mounted on the end of the shaft is acoupling disc (5) that has a hub (8) with butt in bull bearings (9) that supports a hand wheel operated housing (2) that is normally stationary. At a specific location on the wheel is a knob (1) that can be gripped by the hand to allow rotation to be applied. The coupling between the wheel and the disc is provided by a plunger (13) that is moved axially into a hole (29).  An actuator knob (19) is pressed by the hand against a spring (27) in the housing. ADVANTAGE - provides releaseable coupling for manual auxilary drive.d
Patent DE-4001286-A1 (DE)
Title: Locating, recognising and/or exposing fossiles - applying laser beams by scanning unit to sediment layers
Inventor: BAUER HEINRICH
IPC: G01V8/12
Filed: 1990-01-18
Abstract: A scanning unit (2) controls at least one laser source (1) to guide the laser beam(s) according to an assigned scanning raster.  A memory unit (3) stores a frequency series derived from a probe beam. A control or program unit (4) with an integrated amplifying stage is used to control the energy content of the laser pulses in proportion to the frequency sequence. USE/ADVANTAGE - Applicable to all fossiles and structures whose molecular structure or material composition differs from the surrounding sediment.  Discovers finest fossils not previously possible manually.  Reduced labour time.  Enables accurate replication of prepared fossile.
Patent DE-4001952-A1 (DE)
Title: Double exciter for reflector antenna - has dielectric region with low dielectric constant
Inventor: THIELEN HERBERT
IPC: H01Q21/29
Filed: 1990-01-24
Abstract: The directional radio antenna is formed with two grooved horn (1,2) with double excitation. Each horn has dielectric inserts (3,4) that are angled in the permeable region (5). The boundary surfaces (6,7) formed as flat angled surfaces. The angle (8) of the surfaces is selected to obtain the required compensating effect. In order that unwanted changes in the emission characteristic is avoided, the dielectric foam material (5) is selected with a dielectric constant of less than 1.5. ADVANTAGE - Compensates for disturbance effects.
Patent DE-4005922-A1 (DE)
Title: Plasma discharge projectile accelerator - uses coiled electrode with openings to plasma generated by electric arc
Inventor: ZWINGEL DIETER DR RER NAT
IPC: F41B6/00
Filed: 1990-02-24
Abstract: A discharge channel (1,6) defines the path of the arc (15) which encircles the evaporated medium (2,11). The channel is constructed from robust isolating material, housing the electrodes (4), with openings (3,7) to the evaporated medium (2,11). USE/ADVANTAGE - Weapon; good firing characteristic and simple plasma reloading.
Patent DE-4006239-A1 (DE)
Title: Disposal of manure, sewage sludge and refuse by compositing - in aerated reactor with constant stirring after pre-conditioning raw material to 60-65 wt. per cent water content
Inventor: BOEDECKER KNUTH
IPC: C05F15/00
Filed: 1990-02-28
Abstract: Manure, sewage sludge, refuse etc. are disposed of by a method in which material is preconditioned through prodn. of optimum mixing conditions for compositing, with a water content of 60-65 wt.%, pH value of 6.5-7, C/N ratio of 20-30:1, and a bulk density of 600-800 kg/m3. Composting is carried out in an aerated reactor with constant movement at 65-78 deg.C for several days, reducing water content to 20-30 wt.%. Conditioning is carried out at 28-38 deg.C and relative humidity of 90% for 10-14 days with water content adjustment to 20-30 wt.%. ADVANTAGE - Accelerated composting in economic process.
Patent DE-4010668-A1 (DE)
Title: Super-twist liq. crystal displays
Inventor: PLACH HERBERT DR
IPC: C09K19/30
Filed: 1990-04-03
Abstract: Supertwist liq. crystal displays are as described in EP393442, except that the liq. crystal mixt. comprises (a) at least one cpd. of formula A, and/or A2, (b) 10-80 wt. % of at least oen cpd. of formula B1-B4, having a dielectric anisotropy below -1.5, and (d) an optically active cpd. in an amt.  such that the ratio of the distance between the plates and the natural pitch of the chiral nematic liq. crystal mixt. is 0.2-1.3, provided that the mixt. has a nematic phase range of at least 60 deg.C a viscosity of more than 30 mPa sec. and a dielectric anisotropy of at least +5, measured at 20 deg.C. (where Q = 4-R2-phenyl, 4-fluorophenyl or 3,4-difluorophenyl, R1 and R2 = 1-2C alkyl with 1 or 2 non-adjacent CH2 gps. opt. replaced by O, CH=CH, CO, OCO, or COO, Zo = CH2CH2 or a single bond, rings A are opt. substd. by F). @(39pp Dwg.No.0/3)@
Patent DE-4013107-A1 (DE)
Title: Refuse compacting machine - has compactor plate actuated by scissors-type linkage and linear actuator
Inventor: LOPEZ DANIEL
IPC: B30B1/00
Filed: 1990-04-25
Abstract: A machine (1) for compacting refuse has a container (2) to receive the refuse. The refuse is compacted by means of a plate (3) which is a close fit inside the container and is pressed downwards against the refuse. The plate (3) is connected to the underside of the container cover (1a), by means of a scissors-type linkage (4a, 4b). A linear actuator (5) has one end connected to the cover and the other end connected to the pivot point (10) of the linkage (4a, 4b). When the actuator is extended, the plate (3) is forced downards. When the plate (3) is fully retracted, it lies together with the linkage (4a, 4b) inside the container lid (1a). USE - Compacting of refuse.
Patent DE-4030089-A1 (DE)
Title: Cylindrical loudspeaker housing allowing vibrating walls - has curved surfaces so that reflected waves collide reducing standing waves
Inventor: MUEHLBACH GERALD
IPC: H04R1/28
Filed: 1990-09-22
Abstract: A loudspeaker is mounted in a cylindrical housing (2). The sound waves are split up by a bridge on an opening (3) in the housing (2) or by a projection on the inner wall of the housing (2) and turned around in opposite directions. - Due to the housing being round, the waves travelling in different directions collide and their energy is coverted into heat.
Patent DE-4031833-A1 (DE)
Title: Branching off arrangement for partial quantities of milk flow in pipe - has by=pass tube around section contg. aperture to branching tube and deflection plate
Inventor: LANGE HEINZ
IPC: A01J5/04
Filed: 1990-10-08
Abstract: The arrangement for branching off partial quantities of  milk flowing in a pipe contains a pipe section (2) with a specimen branch tube (26) with an aperture open to the pipe section interior. There is a guiding or deflection plate (23) in the pipe section near the branching aperture. A bypass line (3) has its outflow (31) upstream and its inflow (32) downstream of the branching tube. During operation of the arrangement the bypass tube is positioned above to laterally above the pipe section. USE/ADVANTAGE - For milk collection lorries to produce representative samples for high and low flow rates.
Patent DE-4035298-A1 (DE)
Title: System for making, filling and closing sacks from roll of tubing - has clamps and movable stitching machine to provide seams
Inventor: DOERING WERNER DIPL ING
IPC: B65B1/02
Filed: 1990-11-07
Abstract: To form the sack from a hanging tubular web the piece of hanging tube is clamped at the top and then separated from the rest of the web above this clamping line. The free-hanging section is clamped at a distance from its lower edge and stitched beneath the lower clamping line. The lower clamping line is then released again. The filled sack is passed up to a stitching position in the direction of its flat opening edge and is then passed through the stitching position without any change in direction. A first stiching machine (7) which is horizontally movable in the plane of the hanging sack is mounted at a distance of about one sack length beneath the cutter (4) and a pair (9) of stationary clamping jaws are mounted above the stitching machine. A transport carriage (21) with clamping jaws (19) is movable between the filling station (II) and closing station (III). ADVANTAGE - Reduced space requirements since the stitching machine moves whilst the piece of tubular web is held firm.
Patent DE-4036441-A1 (DE)
Title: Versatile ultrasonic pulse generator for surgical use - has generators on same axis as scanning transducer
Inventor: HASSLER DIETRICH DIPL ING
IPC: G10K11/32
Filed: 1990-11-15
Abstract: Two ultrasonic generators pulsed from h.v. sources (29,30) are made in the form of annular focussing mirrors and mounted over a transducer pivoting about their common axis (10,17,18). They are contained in a cylindrical vessel filled with a liquid medium and sealed over with a flexible membrane (5,7). Shock waves as used in surgery are directed to a common focus (F) or spread over a greater depth or time duration. The target can be scanned and displayed via the transducer. Several variants use magnetically driven sources. USE/ADVANTAGE - Pulverising calculi and changing pathological tissue non-invasively. Compact with wider variation possible in time and depth distribution.
Patent DE-4101792-A1 (DE)
Title: Special carry adder for nine complement carry - delivers false carry when first two digits of serial complement cycle are subtracted additively or vice=versa
Inventor: MERKLE PAUL
IPC: G06F7/50
Filed: 1991-01-23
Abstract: The circuit is necessary only when the dual full adders (5, 6) of a reversible tetrad adder-subtractor are not provided with further adders which render the existing adder (4) superfluous. 16 two-input AND gates (7) are used with 10 two-input and 2 three-input OR gates (8, 9) and four NOT gates (10). A special nine's complement circuit (2) is capacitively coupled (21) to a carry adder (4) based on two simple flip-flops (16, 17) similar to those of the carry storage circuit. USE - In connection with 5211 tetrad adder combined with nine's complement and straight-ahead circuits.
Patent DE-4107499-A1 (DE)
Title: New magnetic material based up coupled exchange of hard and soft materials - with alloy including rare earth materials and with remanence to saturation magnetisation of more than 0.6
Inventor: RICHTER HANS JUERGEN DR
IPC: G11B5/706
Filed: 1991-03-08
Abstract: A ferromagnetic material is based upon an exhange coupling mechanism in which a hard magnetic phase (1) and a soft magnetic phase (20 are combined. While hard magnetic materials have a high anisotropy and a relatively low magnetic saturation, the soft materials exhibit the opposite effect. By coupling the materials an optimum is achieved. The volume of the soft magentic material is selected to be greater than that of the hard magnetic material. After removing a magnetic field from the material the remnant field effect is such that MRev is greater than 2.5. The material is an alloy of REx.Fey.Bz.Vu.Siv, where REx is a rare erth material. USE/ADVANTAGE - High performance material for permanent magnets, broad band microwave absorbers, magnetic recording material.
Patent DE-4108049-A1 (DE)
Title: Overcurrent protection device for AC or DC network - with ohmic current monitoring and semiconductor current interrupter activated when max. current is exceeded
Inventor: APELT OTTOMAR DIPL ING
IPC: H02H1/00
Filed: 1991-03-13
Abstract: The overcurrent protection device uses a current measuring device and a current interrupter (5) which is activated when the permissible line current is exceeded. The current measuring device uses an ohmic current measuring path (4) coupled to a comparator circuit (6) for comparison with a preset reference valve (7), providing an output signal for the current interrupter (5). The interrupter pref. comprises a thyristor or a high current transistor, the comparator circuit (6) followed by a delay circuit with a variable time constant. ADVANTAGE - Min. number of components for reduced cost.
Patent DE-4110233-A1 (DE)
Title: Cutting unit for printer paper after printing - has circular cutter moved along guide bar with cutting edge moving relative to bar
Inventor: BERTHOLD HANS-GERD
IPC: B41J11/70
Filed: 1991-03-28
Abstract: The printer operates with continuously fed paper from a roll. After printing the paper passes into a cutting stage. This has a circular cutter (6) that is moved on a carriage (9) along a guide bar. The motion is provided by a cable (14) passing around a pair of pulleys (13). The cutter moves relative to a fixed bar (4). The cutter disc has an integral roller that presses against a bar (5) and so cuases cutter rotation. Profiled spring elements (18) apply an adequatte force. ADVANTAGE - Provides efficient cutting of paper.
Patent DE-4116710-A1 (DE)
Inventor: KASA-DJUKIC VLADIMIR
IPC: A47B97/04
Filed: 1991-05-22
Abstract: The invention relates to an easel for interchangeable picture frames controllable by electric motors, especially for use in artistic painting. The frames are adjustable for height. The frames may also be rotated about their central axis.