baber/WOPTO huggingface dataset:
Patent DE-3905633-A1 (DE)
Title: Offset screwdriver
Inventor: THOMAS OTTO
IPC: B25B17/00
Filed: 1989-02-23
Abstract: Offset screwdrivers with bevel gearing or other direct toothed gearing have the common drawback that in all cases only one pair of teeth serves to transmit the torque. Consequently, they either allow only very small torques or, when larger bevel-gear modules are used, they are so voluminous at the articulation point that they are no longer usable in confined and difficult places. What is desired is an offset screwdriver with angling up to 90@, which transmits sufficient torques to tighten screws firmly and loosen them, is fully usable in poorly accessible places and can be manufactured and used in very small and even precision-mechanical dimensions. The object which is achieved by the invention is the manufacture of technically usable types of offset screwdriver which permit angling up to 90@ with very small external dimensions, which, furthermore, are suitable for continuous rotational movements and which, in addition, allow the transmission of considerably greater torques than comparable bevel-gear pairings, since for the transmission of forces not only one pair of teeth, but always a multiplicity of hardened, cylindrical angle pins in the form of a closed bundle are continuously in full engagement over the entire rotation. The offset screwdriver is suitable for industrial assembly purposes, for precision mechanics, electrical engineering and mechanical engineering. <IMAGE>
Patent DE-3907380-A1 (DE)
Title: Container, in particular can or tin, for packaging food, in particular beverages
Inventor: MAI RALF
IPC: B65D85/72
Filed: 1989-03-08
Abstract: A container, in particular a can or tin, for packaging food, in particular beverages, is described. The container also serves as a drinking vessel and has a bottom, an outer surface and a lid in which there is provided an openable closure which exposes a drinking opening. One region of the lid and/or outer surface of the container, surrounding the drinking opening and corresponding at least to the size of a human mouth, is provided with a removable hygienic protective film.
Patent DE-3912690-A1 (DE)
Title: Detecting and distinguishing moving containers - using active code reader and passive magnetic code generator
Inventor: LORKE HANS-JUERGEN DIPL ING
IPC: G06K17/00
Filed: 1989-04-16
Abstract: The arrangement contains code generators (1) on the containers (4) and code readers (2) for automatic container identification on vehicles, hoisting and loading equipment.  The code generator is in the form of a pyramid frustum with a number of magnets per code value. Magnetic pulses are transmitted to the code reader with read contacts axially and horizontally movable via springs (6,12). The identification is performed by a coded electronic circuit connected to the onboard control computer. USE/ADVANTAGE - For use in container vehicles, etc. for accurate identification of containers using active reader and passive code generator.
Patent DE-3915948-A1 (DE)
Inventor: SPAECK HELMUT DIPL ING
IPC: H01H31/00
Filed: 1989-05-12
Abstract: A metal-encapsulated and gas-insulated load switching device has a three-position switch (4) for the "on", "off" and "earthed" positions and a vacuum power switch. Here, with the three-position switch (4) in its "on" position, there is a series connection with the vacuum power switch (11) such that the three-position switch (4) is connected to the busbar side and the vacuum power switch (11) to the output side. The output side is directly earthed with the three-position switch (4) in the "earthed" position. In this circuit, short-circuit currents are contolled without any additional interlocks as there is a three-position switch designed as a load separating and earthing switch which is also capable of switch-on on a short circuit. The space provided for the vacuum switching tubes (12) can be of such a size that fuse chambers can also be used for HCBC fuse inserts. It is thus possible to create modular units of the same size with different switchgear for the most common switching purposes.
Patent DE-3917934-A1 (DE)
Title: Flat knitting machine
Inventor: KUEHNERT GOTTFRIED
IPC: D04B15/06
Filed: 1989-06-01
Abstract: A flat knitting machine has one or more needle beds (24), in the channels of which needles (4) are inserted and which are designed in the stitch-forming region with comb sinkers forming a comb. So that knitting patterns of any type can be produced by means of an individual stitch take-up with respect to each stitch wale, the needle bed (24) is designed for receiving a comb bed (6) extending over its working width. Mounted pivotably in the comb bed (6) are lever-shaped comb sinkers (1) which have a stitch holding-down nose (3) in the stitch-forming region and a resilient leg (2) formed on in one piece. The comb sinkers (1) are pivotable opposite to the fabric take-up direction counter to the effect of the resilient leg (2) by a cam part (31) moved over the needle bed. <IMAGE>
Patent DE-3918736-A1 (DE)
Title: PTFE coating for metal mesh prosthesis used in artery expansion - internal and external coatings are applied to mesh and prevent thrombosis and further arterial restriction
Inventor: VALLBRACHT CHRISTIAN DR
IPC: A61L27/34
Filed: 1989-06-08
Abstract: A prosthesis is described which consists of an expandable metal wire mesh (2). The prosthesis has a thin coating (3) of polytetrafluoroethylene on the inner surface. A further coating (4) can if necessary be applied to the outer surface. The PTFE (3) can be applied to the mesh (2) as a film and sintered, as a tube which can be stitched around the mesh (2) or as a dispersion which is sintered. USE/ADVANTAGE - As a prosthesis for insertion into restricted arteries for maintaining a constant expansion of the restricted canal. Onset of thrombosis is prevented and cell growth through the grid is prevented thus avoiding further arterial restriction.
Patent DE-3919894-A1 (DE)
Title: Rotary boring device for concentric enlargement of boreholes - used for bored piles, in loose or cohesive soils
Inventor: FROMME THEO DIPL ING
IPC: E21B7/20
Filed: 1989-06-19
Abstract: This is a rotary boring arrangement for enlarging vertical boreholes, in particular for producing bored piles for building construction. The device is driven through a rotary head and a kelly, and has rotating cutting tools. Two alternative versions of the arrangement, one for making a greater enlargement than the other, are claimed, and a number of variants are claimed for both versions. USE/ADVANTAGE - The device enables, in loose, cohesive or varying soils, a previously-drilled lined or unlined borehole to be enlarged concentrically without the use of a protective or guide lining. Lined holes can be enlarged in the unlined part.
Patent DE-3930993-A1 (DE)
Title: Prepn. of p-halo:benzyl halide(s) - from reaction of benzyl halide with zeolite catalyst, for use as synthetic intermediates
Inventor: BOTTA ARTUR DIPL CHEM DR
IPC: C07B61/00
Filed: 1989-09-16
Abstract: Prepn. of p-halo-benzyl halides of formula (I) comprises reaction of a benzyl halide of formula (II) with a halogenation agent in the presence of zeolites of at least 5 angstrom pore width. In formula, x,y = Cl or Br; and R = H, 1-4C alkyl, OMe, OEt, F, Cl or Br. The zeolite catalyst is of structure type faujasite, L, offretite, gmelinite, cancrinite, H, ZSM 12, ZSM 25, zeolite B, ferrierite, ZSM 5, ZSM 11, Lenlandite, ZSM 22, 23, 48, 43, 35, PSH-3, zeolite p, ZSM 38, CSZ-1, ZSM 3, ZSM 20, mordenite, zeolite omega or torosilicate most esp. types Y or L. The zeolites contain 80-100 (esp. 90-100) equiv.% of metal cations. The cations are alkali (ne earth) metal, ammonium rare earth, Cu, Ag and Pb or mixts.  of these, esp. K, Rb, Ca, Sr, Ba, Pb or their mixts.. USE/ADVANTAGE - P-Halo-benzyl halides, e.g. p-chloro-benzyl chloride are intermediates in the prepn. of pharmaceuticals, pesticides and synthetic materials. The method uses cheaper starting materials then previous methods and shows much higher p-selectivity and less self-condensation giving polybenzyl cpds..
Patent DE-3935756-A1 (DE)
Title: Hydraulic circuit for vehicle - with integral leakage path for automatic venting for secondary forward-reverse pump
Inventor: ZENNER ANDREAS
IPC: F15B21/044
Filed: 1989-10-27
Abstract: The hydraulic circuit is driven by a pumped supply.  It uses compact servo cylinders to operate the various drives etc.  The hydraulic flow can be in either direction.  To vent the system when first filled, a controlled leak (15) is incorporated in the servo piston. The controlled leak does not affect the overall working of the system unduly.  It prevents buildup of air and eliminates bleeding points around the system.  There are two oumps for forward and reverse drive, the second of which has a by-pass between the feed and return. ADVANTAGE - No venting required, efficient working at all times.
Patent DE-3939217-A1 (DE)
Title: Prodn. of profiled rod - using extruder followed by rolling stand with 2 sets of rolls at 90 deg. to each other and device to maintain constant min. tensile stress
IPC: B21B15/00
Filed: 1989-11-28
Abstract: Metallic profiled rod is produced in a two stage process whereby a metal block is heated to a temperature suitable for plastic deformation, extruded through a die (7) and then rolled (8) at a similar temperature. The speed of entry of the extruded rod into the rolling stand is regulated with respect to the speed of exit from the extruded so as to maintain a uniform minimum tensile force between the extruder and rolling stand. ADVANTAGE - Productivity is increased as the extrusion process is restricted to producing circular cross-sections which can be carried out at high speeds. The profiling of the cross-section is left to the rolling stage.
Patent DE-3939658-A1 (DE)
Inventor: FUERTAUER ALOIS
IPC: F24F13/14
Filed: 1989-11-30
Abstract: A ventilation box for a masonry wall has mutually separated ducts for incoming air and outgoing air, each of which can be closed by means of a nonreturn flap, namely an incoming air flap and an outgoing air flap. Incoming air flap and outgoing air flap are pivotably mounted separately and independently of one another, but connected to the outgoing air flap is a locking member which, in the closed position of the outgoing air flap, projects into the pivot path of the incoming air flap and locks the latter in the closed position and, on opening of the outgoing air flap, releases the incoming air flap for the opening movement. The locking element can at the same time be designed as a compensating weight for the outgoing air flap. <IMAGE>
Patent DE-3940767-A1 (DE)
Title: Television signal protection system - uses encoding tone signal with corresp. decoder at each authorised reception station
Inventor: TOMIC-KOEHLER HEINRICH DIPL IN
IPC: H04N7/167
Filed: 1989-12-09
Abstract: The television signal protection system prevents a transmitted television signal from being evaluated at unauthorised reception stations. At the transmitter only the tone signal of the television signal is encoded, with each of the licensed reception stations provided with a corresponding decoder. Pref. the coder for the tone signals is specially digitalised, each of the corresponding decoders having a similarly programmed D/A converter. A digital receiver identification signal may be superimposed on the digital tone signal. USE - For preventing access to transmitted programmes except by authorised user.
Patent DE-3942257-A1 (DE)
Title: Measuring contours of rotating machining tool
Inventor: MAIER ANDREAS
IPC: G01B11/245
Filed: 1989-12-21
Abstract: The contours of a body are measured using at least one camera.  The body is rotated in a rotating holder, whose axis of rotation lies along the longitudinal body axis, until the largest radial dimension and the corresp. rotation angle are viewed by a camera perpendicular to the body's longitudinal axis. The largest dimension is measured and fed into an evaluation device which causes the adjustment of the axial position.
Patent DE-4001411-A1 (DE)
Title: Average value signal generating circuitry - processes NRZ signal to recover information of digital input signal subjected to DC coding
Inventor: KETTERLING HANS-PETER DIPL ING
IPC: H04L25/06
Filed: 1990-01-19
Abstract: The input signal is received by a capacitor (72) coupled to a network (10-15), with an input to a voltage divider (16-19) that provides an input to an operational amplifier (22). The input signal is in the form of a non-return to zero signal, with the circuit providing the generation of the average value. A further circuit for average value generation has a symmetrical form with a pair of input transistors. The symmetrical form provides compensation for offset and temperature errors. ADVANTAGE - Provides precise measurement of average value.
Patent DE-4001573-A1 (DE)
Title: Extended bandwidth differential amplifier - has collectors of one pair of transistors controlling opposite base via two further transistors
Inventor: MUEHLSCHEIN ANDREAS DIPL ING
IPC: H03F3/45
Filed: 1990-01-20
Abstract: A third and fourth transistor (T3,T4) are coupled with their emitters to the bases of a differential pair (T1,T2).  Fifth and a sixth transistors (T5,T6) are coupled by their emitters to the collectors of the third or fourth transistor respectively, their bases extending to the collector of the second or first transistor (T2,T1). Between the collector and base of the third and fourth transistor (T3,T4) capacitors may be inserted. USE/ADVANTAGE - Optical communication. Reduced parasitic effects result in increased bandwidth, above 2 Gigahertz, whilst circuit has simplified topology and reduced dissipation and power consumption.
Patent DE-4003807-A1 (DE)
Title: Motor vehicle warning light and holder - has upper and lower housing parts equally curved in vertical plane and front view
Inventor: MACHIDA TSUTOMU
IPC: F21S8/10
Filed: 1990-02-08
Abstract: Walls (5,6) limiting a lamp cavity from above and below are formed of resin and in the vertical plane are curved in the same sense. Pref. the upper wall is on a housing part and the lower wall on a base part, each being of thermoplastic resin. The light source (1) inside the cavity (9) may be curved corresp. the curve of the upper and lower wall. Pref. the source comprises a printed circuit board (21) and a number of LEDs (23) mounted on it. The housing material may be coloured.
Patent DE-4007282-A1 (DE)
Title: Measurement and control for water outflow from raw overflow tank - contains measurement device in outflow pipe of rain overflow tank with motorised selector and level sensor in static chamber
IPC: G05D9/12
Filed: 1990-03-08
Abstract: An arrangement for measuring and controlling -the water flowing out of a rain overflow tank contains a  measurement device for the throughput measurement region of an outflow pipe and a motorised choke downstream of the  device. The outflow tube is unsiphoned. The water level (3) in a static chamber (2) connected to the outflow tube (27) is measured continuously by a device (4a) connected to a controller which varies the cross-section of the measurement tube via a choke so that the level before the tube is always above its top. USE/ADVANTAGE - Accurate measurement and control, according to defined specification of water outflow irrespective of instantaneous rain fall.
Patent DE-4013899-A1 (DE)
Title: Front wheel drive bicycle - has manually operated cranks and chain wheel mounted on steering column
Inventor: GRUENBERG ECKHARD
IPC: B62M1/14
Filed: 1990-04-25
Abstract: The bicycle has front wheel drive from manually operated cranks (19) mounted on a support (7). This is clamped to the upper end of the steering column (1) in place of the usual handle bars. The cranks (19) are in phase with each other and are arranged symmetrically about the longitudinal axis of the bicycle. The cranks are provided with rotatable handgrips (21) and drive a chainwheel (28) which is connected by a chain (24) to a sprocket in the front wheel (25). If required the cranks can be disconnected from the chainwheel and the handgrips locked in a fixed position and used as normal handlebars. USE - Frontwheel drive bicycle.
Patent DE-4015754-A1 (DE)
Title: Insol polymers contg. poly perylene units - obtd. by oxidn. of corresp. bis-naphthalene di:oic acid imidazolide(s), for pigment, sensor, electrode, etc.
Inventor: NAARMANN HERBERT DR
IPC: C08G73/06
Filed: 1990-05-16
Abstract: Substance (I) contg. polyperylene units of formula (II) is claimed; (I) is obtd. by oxidn. of the corresp. bis-naphthalene-dioic acid imidazolide of formula (III); Ar = aromatic residue; n = above 1. Also claimed are: (a) cpds. (III) as such, (b) prodn. of (I) by oxidn. of (III) in a fluid bed, electrochemically or with (in)organic oxidising agent with oxidn. potential above +0.5 V, and (c) prodn. of (III) by reaction of naphthalene-1,8-dioic acid anhydride (IV) with the corresp. aromatic tetra-amine (V). USE/ADVANTAGE - Prodn. of polymers (I) from soluble starting materials (contrast prior-art processes). (I) are insol. polymers, useful e.g. as pigments, materials for sensors, electrodes, energy storage, etc.
Patent DE-4021569-A1 (DE)
Title: Wheel; suspension system for vehicle - is formed as parallelograph to improve drive characteristics
Inventor: BRANDL HANS JUERGEN
IPC: B60G21/05
Filed: 1990-07-06
Abstract: The wheel suspension system is for a vehicle. It has two elastically mounted rigid connecting arms (16,18) with a flexible cross strut (24) arranged in between. A second cross strut (34) having a smaller bending moment is rranged in front of the first strut in the sense of the direction of travel (X) to form a parallelogram with the connecting arms and the first strut. USE/ADVANTAGE - Suspension system which gives improved elasto-kinematic behavious, esp. when negotiating curves.
Patent DE-4022295-A1 (DE)
Title: Catalytic combustion reactor for gases - comprises pressure and temp. control and minimal inventory, with reactants being sepd. until simultaneously contacting catalyst surfaceD
Inventor: GIESHOFF JUERGEN DR
IPC: B01J23/44
Filed: 1990-07-13
Abstract: Reactor is for two mutually combustible gases, contg. a gas permeable sheath (5) internally supplied with one of the reacting gases (1), while the reactor space (4) outside the sheath is fed with the second gas. The invention also covers a method for safe start-up and operational control is also claimed. Sheath materials are pref. sintered prods., foam or fibrous mats, partic. ceramic mineral prods., glass, asbestos and plastics. The sheath material is pref. coated with a catalyst appropriate to the reaction e.g. Pt or Y for recombination of H2 and O2.  USE/ADVANTAGE - As a gas burner for: (a) sepn. of reactants until point of reaction; (b) redn. of reaction threshold temp., and (c) economical use of expensive catalytic materials.
Patent DE-4104882-A1 (DE)
Inventor: VOGT LOTHAR DR
IPC: H03H17/06
Filed: 1991-02-18
Abstract: In a car radio with a circuit arrangement for analog/digital conversion of an IF signal, a sigma-delta converter is timed with a clock frequency which is defined in such a way that an integral multiple and an adjacent half-integral multiple of the clock frequency encompass the frequency band of the IF signal. <IMAGE>
Patent DE-4105291-A1 (DE)
Title: Workpiece processing functions, monitoring esp. for spark erosion machine - using multiple window screens showing functions and setting values in separate screens
Inventor: BORSARI CLAUDIO
IPC: G05B19/4093
Filed: 1991-02-20
Abstract: The method monitors and plans workpiece machining functions by displaying individual functions in a window of a display screen, selecting one or more functions and setting values for them in a further window. Only functions to be performed are released for selection. Functions which can be performed and those which cannot are characterised differently. The setting of the function values is monitored in a sketching window associated with the further window. USE/ADVANTAGE - Esp. for spark erosion machine, improved dialogue is achieved between user and machine.
Patent DE-4107679-A1 (DE)
Title: Liq. container for washing e.g. vegetables after peeling - has inclined floor surface with conveyor and openings with gratings by way of which peel fragments, etc. are removed
Inventor: DORNOW KARL-DIETRICH
IPC: A23N12/02
Filed: 1991-03-09
Abstract: A liq. container for washing vegetables etc., has an inclined outlet delivery surface 8) which is traversed by a conveyor and which contains at least one opening (13,13') which is smaller than the items being washed. One opening (13) is located above the water level (11) and the other (13') below it. A collecting chamber (18,18') is provided at least below the lower opening (13') and has a closable outlet (21). The openings (13,13') are in the form of a transverse slot covered by a grating (14). USE/ADVANTAGE - Used especially for washing vegetable and fruit after peeling, in order to remove any fragments of peel etc., which may be adhering to them. The peeled prod. especially that which has been peeled dry, is cleaned and freed from adhering fragment of peel, using as little water as possible.
Patent DE-4109760-A1 (DE)
Title: Two part external bone-setting apparatus - has non rigid coupling to one portion of broken bone with fixing pins
Inventor: BEN-ITZHAK ILAN
IPC: A61B17/64
Filed: 1991-03-25
Abstract: The external bone-setting apparatus (10) has a rectangular section (12) in first and second parts (14,16) defining a lengthwise axis (18). A pair of shafts (28) joined to the first part engage rigidly with the first portion (24) of the broken bone (22) under the action of a non-rigid coupling (42), to allow relative movement between the shafts and the first part. A second shaft group (30) secures the second part to the second portion (26) of the bone. ADVANTAGE - Avoidance of undesirable friction.
Patent DE-4116932-A1 (DE)
Inventor: HEIMANN BRUNO
IPC: F16L37/086
Filed: 1991-05-24
Abstract: To improve a hand shower having at least one shower jet generating device and a handle on which a releasable connection for a hose conduit for feeding in the water is provided, it is proposed that a quick acting coupling for a plug connection of the hose conduit be provided in the handle, at least one transverse locking bow for the coupling of the plug connection being arranged in the handle in a manner which allows the said bow to be displaced to a limited extent radially. 
<IMAGE>
Patent DE-4118328-A1 (DE)
Title: Instrument for teaching music - has resonator elements clamped to horizontal arm supported on stand
Inventor: WEINHUBER KONRAD
IPC: G10D13/08
Filed: 1991-06-04
Abstract: The instrument for use in the teaching of music, consists of a stand (6) which supports a horizontal arm (1). The arm carries a number of resonator elements (8) each of which generates a musical note. Each resonator element (8) is attached to a crossbar (10) which is struck to generate its required note. The resonator elements (8) may be arranged in any preferred order. The stand (6) consists of an upper part (5) which is attached to a tripod support (7) and each resonator element is attached to the horizontal arm by a clamp. USE/ADVANTAGE - Instrument for teaching music has resonator elements which can be spaced to suit requirements.
Patent DE-4124646-A1 (DE)
Title: Inserted tooth cutter for machining I.C. engine valve seatings - has reversible insert in form of ribbed base section with brazed hardmetal strips having different profiles on two end faces
Inventor: SCHEER INGO WERNER
IPC: B23C3/05
Filed: 1991-07-25
Abstract: The rotating cutter has one or more reversible cutter inserts (3) around the circumference. The cutter insert is prismatic with an approx. triangular section. It is formed from a base section (12) with a strengthening rib (19) and it has brazed onto it two hardmetal strips (10, 11) whose end faces (13, 14) are ground as form cutters with different profile segments. The strengthening rib is inclined at a small angle to the cutter axis. USE/ADVANTAGE - Cheap, simple and robust tool suitable for a variety of machining applications.