baber/WOPTO huggingface dataset:
Patent DE-2943444-A1 (DE)
Title: Optically active 3-amino-1,2-propane:diol antipodes prodn. - by reacting racemic 3-amino-1,2-propane:diol with N-acetyl-d- or l-alanine to give diastereomeric salts, sepd. by fractional crystallisation
Inventor: KLIEGER ERICH DR
Filed: 1979-10-24
Abstract: Prepn. of optically active antipodes of 3-amino-1,2-propanediol (I) comprises forming a salt of racemic (I) with an optically active acid which is either N-acetyl-L-alanine (IIa) or N-acetyl-D-alanine (IIb), sepg. the diastereomeric salts by fractional crystallisation in a suitable solvent and then liberating the optically active (I) enantiomers by a conventional method. Optically active (I) enantiomers are intermediates in the prepn. of modern X-ray contrast agents which are well tolerated by the body. The optical antipodes are obtd. in good yields and with excellent optical purity in the simplest manner.
Patent DE-2945596-A1 (DE)
Title: Insulated window shoulder for greenhouses - has split forming inner and outer sections, with inside filled with plastics foam
Inventor: KUHMICHEL FRANK
IPC: A01G9/14
Filed: 1979-11-12
Abstract: The heat insulating shoulder is intended for window fitting without putty to ensure the largest possible sealing of greenhouses, while providing max. energy savings. The shoulder is split into an outer and an inner section and the interspace is filled with insulating plastics foam so that heat transfer is prevented. The glass seal is pref. formed by a hollow rubber section.
Patent DE-2946834-A1 (DE)
Title: Tooth moving force transmission equipment - moves from wire, has holder with wire slot fixed to tooth and cap
Inventor: KESLING PETER C
IPC: A61C7/30
Filed: 1979-11-20
Abstract: The orthodontic equipment transmits tooth-moving forces from a jaw wire to a tooth. It comprises a holder (21) fixed to the tooth and accommodating a detachable control cap (22). The holder base is secured to the tooth, and has a pair of occlusal-gingival shanks (30) spaced apart, forming between them a mesial-distal opening appreciably larger than the wire. The cap has portions (36, 37) detachably engaging with the shanks, and the holder has a slot (39) accommodating the wire, so as to control the tooth-moving forces acting between the wire (32) and the tooth.
Patent DE-2949132-A1 (DE)
Title: Self-locking hinge for rotary and rocker switches - has solid prism turning inside wider hollow prism as hinge bearing
Inventor: MATTHES NORBERT
IPC: E05D11/10
Filed: 1979-12-06
Abstract: Simple provision is made for notching in position an object moving about an axis of rotation, by a self-locking hinge joint made of elastic material. The hinge bearing consists of a solid prism (1b) of smaller cross-section, rotatably mounted in a hollow prism (1a). The corner dimension of the solid one exceeds the key width of the hollow one so that movement of the former results in locking positions with angle settings largely determinable by the number of inner and outer edges (3,4). The mechanism is simple, and min. effort is needed for disengaging the locking positions, or a tilt and turn fitting, or similar.
Patent DE-2951274-A1 (DE)
Title: Composite sports pitch surface top layer - comprises rubber and adhesive comprising butyl rubber, polyisocybutylene, polychloroprene, magnesium oxide, heat reactive resin and bitumen
Inventor: ALBERS GUENTER
IPC: C09J195/00
Filed: 1979-12-20
Abstract: An elongated length of covering material, for attachment to a substructure of asphalt and fine concrete, in sports installations, is made of rubber, with an adhesive layer. The latter is made up from a mixt. of butyl rubber, polyisobutylene, polychloroprene, magnesium oxide heat-reactive resin and bituman. The first two are within the mutual ratio 20-80:60-40% wt. respectively with the other four materials at 1-30%, 1-20%, 5-40% and 40-300% by weight respectively. This can be quickly and easily laid, permits easy repair work, and is inexpensive.
Patent DE-3001583-A1 (DE)
Title: Energy-conserving rotating machine assembly - has bell-shaped rotor between inner and outer stator
Inventor: BOHLE JOSEF
IPC: H02K47/20
Filed: 1980-01-17
Abstract: The rotating machine has a bell-shaped rotor rotating between an inner and an outer stator. The effect of the motor force at the outer radius of the rotor (8) acts with a lever force on the inner radius and thereby on the generator. The inner stator can be adjusted radially by means of a handwheel and worm gear (16) in order to bring it into the most effective position. The cable carrying the generator current passes through the hollow shaft (17) on which the inner stator with the windings is mounted. The inner stator rotation brings the force lines of the motor part and the force lines of the generator part into an optimum relationship.
Patent DE-3002547-A1 (DE)
Title: Contactless measurement of speed of moving object - using multiple surface reflector passing light alternately to two transducers
Inventor: GREENWOOD JOHN CHRISTOPHER
IPC: G01P3/36
Filed: 1980-01-25
Abstract: A contact less speed measurement device has an optical component producing a position frequency and an evaluation circuit contg. two optical-to-electrical transducers connected to a differential amplifier. It measures the speed of an object (19) moving w.r.t. the optical detector with improved setting accuracy and reduced cost compared to conventional devices.
Patent DE-3002981-A1 (DE)
Title: Textile thread brake - with soft lined pendulum roll in groove of thread brake
Inventor: BROSA ERICH
IPC: B65H59/16
Filed: 1980-01-29
Abstract: The Parent Patent 2939375 described a revolving pigtail type of brake for threads. This has now been replaced by rounding off the base of the groove in the thread brake roller and by allowing a thread guide roll, fitted with a soft lining, to roll along the groove with a suitably shaped profile. This guide roll is mounted on a hinged lever so that it can move like a pendulum and guide the thread free from sliding friction. This is an effective way of eliminating the formation of fluff on fine-gauge natural fibres.
Patent DE-3009034-A1 (DE)
Inventor: STEINER GERD DIPL CHEM DR
IPC: A61K31/50
Filed: 1980-03-08
Abstract: 10-Substituted 5-cyanomethylene-dibenzo[a,d]-cycloheptenes, their pure cis- and trans-isomers, their N-oxides and their pharmaceutically tolerated addition salts with acids, processes for their preparation, therapeutic agents containing these compounds and their use as drugs, especially as sedatives, hypnotics or tranquilizers.
Patent DE-3012309-A1 (DE)
Title: Renewing running surface of long distance skis - involves planing away layer of damaged plastics material and new layer is glued on
Inventor: DURNER JOSEF
IPC: A63C11/14
Filed: 1980-03-29
Abstract: The method is used for renewing the running surface of long distance skis, esp. those made of plastics. The running surface is glued and pressed on to a lower holding belt which limits the inner core. The worn running surface covering (6) is first planed down equally over the whole of its length at least up to the depth of any indented scratches, then a new running surface is glued on and then pressed home. The damaged layer is planed off only far enough to ensure that the layer next to the holding belt is retained.
Patent DE-3013993-A1 (DE)
Title: Digital to analogue converter - has multiplier stage to provide constant quantisation error over wide range
Inventor: HEINLE GEORG DIPL ING
IPC: H03M1/00
Filed: 1980-04-11
Abstract: A digital to analogue converter is designed to maintain a constant quantisation error over a wide range of operation. The converter is designed to maintain this condition when handling floating point numbers. The exponent part (1a) is fed to the input of a decoder (1) that provides a number 2 to the power 'E' as input to a digital to analogue stage (2). The converter outputs the analogue equivalent (2b) and is controlled by a multiplying factor (F) applied to a separate input (2c). The multiplied value controls a second D-A converter that operates on the mantissa value (M). A separate inverter stage (1) operates on the sign bit to generate the complete analogue output.
Patent DE-3016124-A1 (DE)
Title: Offset adjustment system for electronic switch with hysteresis - measures duty factor at output with AC volts at signal input
Inventor: FUNKE DIETER DR ING
IPC: H03K17/30
Filed: 1980-04-25
Abstract: The adjustment system, for switches like comparators and Schmitt triggers with hysteresis, earths the reference input (6) of the switch (1) and applies a symmetric ac voltage (5) to its signal input (4). The mark/space ratio at the switch output (7) is measured as a function of the value of the variable resistor (3) that sets the offset. The output of the switch may be displayed on a two-channel oscilloscope (8) or passed to a time measuring circuit coupled to a computer. The advantage lies in rapid and precise adjustment of the offset voltage of the switch.
Patent DE-3025015-A1 (DE)
Title: Variable magnification photocopier - has mechanically-adjusted shutters to limit charge width on process drum
Inventor: RUH GERHARD ING GRAD
IPC: G03G15/041
Filed: 1980-07-02
Abstract: A photocopier with a variable magnification has adjustable scan optics to generate the required format size on the process drum (1) and movable shutters (101,102) which are positioned between the charging electrode (7) and the drum to limit the charged width on the process drum to the required copy width. This eliminates smearing from the edges of the drum. The shutters are mechanically linked to the scan controls and are automatically set with the magnification selector of the scanner. The relative settings are controlled by adjusting cams (89,91) on the scan linkage.
Patent DE-3029636-A1 (DE)
Title: Solar heat collector panel for drying hay - uses absorber plates with granular coating and optional slots for heating air
Inventor: SCHWARTING BERNHARD
IPC: F24J2/48
Filed: 1980-08-05
Abstract: The heat collector panel for a solar heating unit which heats air for drying hay can be erected in a favourable position in e.g. a field. Between a base plate (3) made of insulating material and a transparent cover (4) is mounted an absorber plate (11) which can carry a diffuse coating (12) on one or both sides. The heated air passes along a channel (15) under the absorber plate. This coating may be of blast furnace slack, broken coke, gravel, iron or aluminium swarf or filings, grinding powder etc. One or both sides of the plate can be blackened or metallic. The plate may also incorporate a regular pattern of slits, with their edges bent outwards to form jet openings for the air flow.
Patent DE-3046785-A1 (DE)
Title: Breast prosthesis in two parts one attached to body - the other adjustable by rotation
Inventor: PRAHL JANS
IPC: A61F2/52
Filed: 1980-12-12
Abstract: A breast prosthesis is of elastic plastics material, esp. silicone rubber, and has a recess on its rear face approx. at the centre; a moulding is locked in this recess and can rotate about its central axis. The rear, outer face of this moulding is coated with an adhesive, compatible with the human skin. With this arrangement, after the moulding has been attached to the body, the artificial breast can be adjusted in position by rotating it about the moulding. The recess pref. has the form of an annular groove into which the moulding is locked.
Patent DE-3047593-A1 (DE)
Title: Suction carrier for plate glass - creates vacuum by tightening wing nut and has vacuum gauge to indicate any loss of vacuum
Inventor: ARAI TOSHIMITSU
IPC: B65G7/12
Filed: 1980-12-17
Abstract: The suction unit is intended for carrying a glass plate (14) using a handle (17). It comprises a disc (1) made of resilient material and containing a rigid core plate (3), a cap (2) whose rim engages the peripheral area of the rear of the disc, and a stud screw (6) fixed to the rear of the plate (3) which extends through the cap and carries a wing nut (11) to create the vacuum (13) between disc (1) and glass plate (14) by being tightened. Rotation of the screw is prevented by a bent pin (15) and a vacuum gauge (20) fixed to the outside of the cap connects (21,22) with the space (13) between the disc (1) and the glass (14) and indicates any loss of vacuum.
Patent DE-3049109-A1 (DE)
Title: Torsionally-elastic vibration-damping coupling - has disc body divided radially into segments each with rubber hub and flange
Inventor: KLEEFISCH JOHANNES
IPC: F16D3/76
Filed: 1980-12-24
Abstract: The torsionally-elastic coupling damps out shock loads and vibration, having a disc-shaped body comprising an inner hub ring and an outer flange ring vulcanised to a convex rubber body supporting non-elastic ropes extending radially and which are vulcanised to its outer surface. The ropes pass through apertures equipped with spring bodies in the rings. The body (1) is divided in radial planes into three or more segments (2), each comprising a rubber body (5) with hub (3) and flange (4) ring sections vulcanised to it. A single continuous rope forms all the rope falls for each segment. Screws (10) parallel to the axis of rotation secure the hub ring sections to the flange (11) of a coupling hub (12) and are held in place by a locking ring (15), while other such screws (13) secure the flange ring sections to a further locking ring (14).
Patent DE-3100308-A1 (DE)
Title: Logic circuit in two-phase MOS technology
Inventor: MATHES EGON DIPL ING
IPC: H03K19/017
Filed: 1981-01-08
Abstract: In logic circuits of a number of strings with series circuits of transistors which receive the signals to be logically operated on, a conducting string must not only discharge the output capacitance of the logic circuit output but also other not completely conductive strings, up to the first inhibited transistor. This can represent a very high capacitive loading which greatly reduces the switching speed. According to the invention, the connection between the strings is broken and each string is provided with a separate charging transistor and the outputs of the individual strings lead to the gates of a series circuit of further transistors which are located between reference potential and the output of the logic circuit, which is connected to the operating voltage via a load transistor. When the strings are very long, it is also appropriate to subdivide them into part-rows which are in each case provided with their separate charging and interrogation transistor and the outputs of which are connected to a separate further transistor in each case. The further transistors of the same row are connected in parallel and the parallel circuits of different rows are connected in series. <IMAGE>
Patent DE-3109637-A1 (DE)
Title: Method for extending the service life of the deposition cylinder in the production of copper foil
Inventor: MATSCHINER HERMANN PROF DR
IPC: C25D1/04
Filed: 1981-03-13
Abstract: The invention relates to a process for the electrolytic production of copper foil, in particular for printed circuits. Rapid deactivation of the titanium deposition cylinders can be prevented by adding further organic corrosion inhibiters, such as aromatic and/or aliphatic compounds having one or more nitro groups and/or nitroso groups as well as further substituents which promote solubility. In this way, standstill times of copper foil production installations can be substantially reduced and production can be increased as compared with existing technology.
Patent DE-3111366-A1 (DE)
Title: In-line throttle engine with spark ignition and variable compression
Inventor: BAYER WILLY
IPC: F02B1/04
Filed: 1981-03-23
Abstract: Published without abstract.
Patent DE-3112087-A1 (DE)
Title: Process for stabilising optical adhesives and adhesive joints against the action of short-wave radiation and against temperature shock treatment
Inventor: MAERTIN ROLF DR
IPC: C09J201/00
Filed: 1981-03-27
Abstract: Process for stabilising optical adhesives and adhesive joints against the action of short-wave radiation and against temperature shock treatment. The purpose and object of the optical adhesives and adhesive joints is stabilisation against gamma and X-rays and against temperature shock treatment without impairing the other chemical, physical, optical and technological properties. The essence of the invention is to add benzyl alcohol as a stabiliser to the base optical adhesive in an amount of 1-10% by mass. Such optical adhesives are useful for low-stress adhering or for mounting and setting sensitive high-precision optical components.
Patent DE-3113427-A1 (DE)
Inventor: BJARNASON GUDMUNDUR
IPC: B01J4/00
Filed: 1981-04-03
Abstract: A silo for storing alumina having a conical outlet at the bottom thereof is fitted with an exchangeable feeding unit mounted over the conical outlet opening. The feeding unit is adapted to close off the outlet opening when in the non-operative position. The feeding unit can take various forms and includes at least one injection nozzle for fluidizing the particulate material.
Patent DE-3114515-A1 (DE)
Title: Circuit arrangement for testing connection lines in telephone systems
Inventor: KNAUER HANS-ULRICH
IPC: H04M3/30
Filed: 1981-04-10
Abstract: In order to produce a simple manual testing device to test connection lines in telephone systems with which a fault point can be more closely pinpointed, a combination of a DC continuity test and a test with alternating current is proposed. In order to be able to carry out tests of this type, a diode is inserted into a speech wire in the feed current direction and a series resonant circuit is inserted between the speech wires at the subscriber end of each connection line. The part of the testing device which carries out the DC continuity test of the testing device has a polarity-inverting device which inverts the polarity of the direct current source during the testing of each connection line. The part of the testing device which carries out the test with alternating current has an AC generator with a frequency which is tuned to the resonant frequency of the series resonant circuit. The test results of both parts of the testing device are evaluated in combined form. It is thereby possible to ascertain whether a fault can be attributed to the connection line itself, the rest of the line which feeds the telephone set or the telephone set itself.
Patent DE-3115774-A1 (DE)
Title: Drum for drying or calcining and cooling bulk material
Inventor: KROMER WERNER DIPL ING
IPC: F26B11/04
Filed: 1981-04-18
Abstract: In order, in a drum for drying or calcining and cooling bulk material, to save energy and to achieve as short a construction as possible, an inner drum is connected rigidly to an outer drum, the bulk material passing first through the inner and subsequently through the outer drum. Both the heating air and the cooling air are let in counter to the flow direction of the bulk material and in particular the hot air into the inner drum and the cooling air on the opposite side of the outer drum. For the cooling air, a transfer opening into the inner drum is then provided so that the cooling air heated by the bulk material during cooling additionally supports the drying process. The air mixed from hot air and cooling air is then carried off for dust removal.
Patent DE-3120086-A1 (DE)
Title: Process for producing ultrafilters
Inventor: FICKELSCHER HORST DIPL PHYS
IPC: A61K9/00
Filed: 1981-05-20
Abstract: In a process for producing ultrafilters, a recrystallised aluminium foil is electrolytically etched. In a first etching stage, an etching current density above the pitting potential of the aluminium is used and further etching is carried out with an etching current density beneath the pitting potential. The etching is performed with an anode potential constant with time.
Patent DE-3121058-A1 (DE)
Title: Starter for motor vehicles
Inventor: PIESBERGEN LUTZ
IPC: F02N99/00
Filed: 1981-05-27
Abstract: A starter (4) for motor vehicles is proposed, in which in addition to the engine (1) one or more auxiliary units (2) can also be coupled up by means of a coupling (3). The coupling (3) advantageously comprises a shaft end (5) with tooth profile (6) fitted to the armature of the starter (4) and a sleeve (7) with internal toothing (8). <IMAGE>
Patent DE-3122922-A1 (DE)
Title: Process for desludging waste waters containing solid particles
Inventor: DIMKE REINHARD
IPC: C02F1/38
Filed: 1981-06-10
Abstract: A process is specified for desludging waste waters, in which the flushing water containing solid particles is collected in a vessel. The process is suitable in particular for desludging the paint slurry produced during spray-painting in spray cabins and spray booths. The process is that the solid particles produced are kept in suspension by circulation, the solid particles reaching the liquid surface are continuously removed from this and these solid particles are separated off in a centrifuge. The circulation is preferably performed via a pump and spray pipes arranged in the vessel, while for continuous removal of the solid particles from the liquid surface a skimmer is provided, with the aid of which the surface layer of the liquid is removed by suction. <IMAGE>
Patent DE-3127523-A1 (DE)
Title: Stuffing-box packing
Inventor: GENTHE GUENTHER
IPC: F16J15/22
Filed: 1981-07-11
Abstract: A stuffing-box packing is constructed such that a glass-fibre core (11) is surrounded by a braiding (12) of aramid-fibre yarn. <IMAGE>
Patent DE-3128331-A1 (DE)
Inventor: LUSCHER JAKOB M
IPC: H03K3/354
Filed: 1981-07-17
Abstract: A C-MOS oscillator circuit having input and output terminals adapted to be connected to a resonator and two active MOS transistors of complementary types connected in series between the supply terminals of the circuit, which supply terminals are connected to the positive and negative poles of a source of d.c. voltage, the sources of the transistors being connected to a supply terminal and the drains being connected to the output terminal. The d.c. bias and the a.c. voltage control of each of the active transistors are ensured by a MOS transistor of the same type connected as a diode between its gate and its drain, a current source connected between its gate and the supply terminal to which the source of the other active transistor is connected, and a capacitive voltage divider which is connected between the supply terminal, to which its source is connected, and the input terminal, and the intermediate point of which is connected to its gate.
Patent DE-3128945-A1 (DE)
Title: Seating mat
Inventor: LEE SANG YOL
IPC: A47C7/24
Filed: 1981-07-22
Abstract: A seating or base mat is described, having a plurality of spring section groups (B, B1, B2) which are arranged on a mat base parallel to one another with mutual spacing and are sewn into the mat covering (5), the seams being made in the gaps between the spring section groups arranged in parallel and in one plane. Each spring section group (B, B1, B2) consists of two or three spring sections which are combined in groups at both ends by a plastic attachment cap. Each spring section (A) consists of a plurality of spring steel wires which are woven to form a net-like tube, and the two ends of each spring section are bound with the aid of a metal clip or a metal ring. The net-like design of the spring sections combined in groups results in excellent ventilation and a pleasant spring or cushion effect which remains intact over a long service life. <IMAGE>