baber/WOPTO huggingface dataset:
Patent DE-2648004-A1 (DE)
Title: 4-Cyano-valeric acid ester(s) prepn. - by reacting 2-methyl-3-butene nitrile with carbon mon:oxide and an alcohol in the presence of a metal carbonyl and a heterocycle
Inventor: FISCHER ROLF DIPL CHEM DR
Filed: 1976-10-23
Abstract: Parent patent described the prepn. of 5-cyano valeric acid esters by reacting a pentene nitrile of formula R'-CH2-CN (I) (where R' is MeCH=CH- or CH2=CH-CH2-) with CO and an OH-contg. cpd. of formula R2-OH (II) where R2 is an aliphatic, cycloaliphatic or aromatic gp.) at >=140 degrees C and at >=100 bar in the presence of metal carbonyls and basic 5- or 6-membered N contg. monocyclic heterocyclic cpds. In this addn. 4-cyanovaleric acid esters (III) are prepd. by a similar process using 2-methyl-3-butene nitrile (I') as the pentene nitrile. Also claimed are 4-cyanovaleric acid esters of formula R2O-CO-CH2-CH2-CH(CN)-Me (IIIa) (where R2 is 2C or >2C aliphatic gp.; or 2C alkyl substd. with a heteroatom or a cycloaliphatic, araliphatic or aromatic gp.). (III) are intermediates in the prepn. of dyes, pest control agents, fibres (esp. polyamide fibres) and plastics. (III) can be hydrogenated to 4-methyl-5-aminovalerates, which on elimination of the alcohol give 5-methyl-2-piperidone, which can be used as an extractant and as a solvent, and is also an intermediate in the prodn. of nicotinic acid. (III) can be obtd. in better yields and purity, esp. on an industrial scale. Toxic, difficult to handle cpds. such as NaCN are avoided and the reaction is less harmful to the environment. There is no need for an esterification step.
Patent DE-2648140-A1 (DE)
Title: Stranding of individual or bunched wires for communication cables - has speed of torsion blocking device increased at certain points during operation
Inventor: BRAUN DIETER DIPL PHYS DR ING
IPC: H01B13/02
Filed: 1976-10-23
Abstract: Wires are pulled at constant speed from fixed drums and stranded by a stranding head between an inlet and outlet nipple, rotating in the same direction at a constant speed. It is then wound on fixed drums. A first stranding section between the continuously rotating but not movable stranding head ana torsion blocking device is continuously lengthened between two limits at a rate slower than the wire pulling speed. The second stranding section between stranding head and outlet nipple remains constant. The speed of the torsion blocking device is increased after at least one reversing point of the first stranding section over a certain part of the section.
Patent DE-2655734-A1 (DE)
Title: Configured bulbous bow for ship - has specified portion of above water-line surface sloping between given limits
Inventor: SCHNEEKLUTH HERBERT PROF DR IN
IPC: B63B1/06
Filed: 1976-12-09
Abstract: The specially configured ship's bulbous bow extends forward from the stem line substantially under water. In a plane parallel to the ship's centre plane displaced from the latter by 3% of the beam, a portion of the bow surface is specially defined. This lies between two points respectively 1.5% (A) and 3% (B) of the ship's length aft of the intersection between bow contour and design waterline (3); slopes backwards at an angle of between 30 deg. downwards and 5 deg. upwards. The forward point (A) is not more than 30% of design draught above the design waterline.
Patent DE-2700155-A1 (DE)
Title: Automatic rack and pinion door closer - has axially sealed pinion stub axles in bearing rings in cylinder casing and adjustable valve to control closing speed
Inventor: SCHOKER HANS
IPC: E05F3/10
Filed: 1977-01-04
Abstract: The automatic door closer incorporates a cylinder with a sealed piston. A rack engages a pinion with an axle connection to a closing arm. There is also a peripheral duct for oil, with an adjustable valve for closure speed regulation. The pinion (8) is fitted with stub axles (9, 10), mounted in bearing rings (11, 12) inserted in the cylinder casing (1) and axially sealed towards the outside. The bearing may contain needles (13) mounted in internal recesses in the bearing rings, with no cage.
Patent DE-2701197-A1 (DE)
Title: Moisture detector using conductivity or capacitance variation - has electrode separation material heating to avoid contamination triggering by residual moisture
Inventor: FRIEDL RICHARD DR ING
IPC: G01N27/22
Filed: 1977-01-13
Abstract: The instrument is for detecting fluid using conductivity or capacitance variation between two electrodes (1, 2) and is designed so that the indicator does not give faulty detections because of electrode contamination caused by air moisture. The device becomes operational again as soon as the detected moisture is removed. The insulating or dielectric material between the electrodes is in thermal contact with an electrical heating resistance (3). Warming the material ensures that residual moisture remaining after removal of the detected moisture is rapidly vaporized so that the electrical or dielectrical characteristics of the material are restored practically to the dry condition.
Patent DE-2701679-A1 (DE)
Title: Wire drawing machine for multistrand operation - has drawing and guiding cones with common frame and drive
IPC: B21C1/04
Filed: 1977-01-17
Abstract: The wire drawing machine has shaft pairs arranged on both sides of the machine. Each shaft has drawing cones acting in pairs for drawing separate wire strands simultaneously. These wires are directed to a common winding spool. Wires drawn this way can be used further for making multistrand cables. A new wire can be started or broken one replaced while the machine continues operation. The simultaneous drawing of more than two wire strands the common machine frame (1) has several shaft pairs (2) corresponding in number to the wire strands. These shafts are driven by a single common drive (M). The drawing cones are arranged horizontally side by side or vertically. The shafts can be arranged at an angle to the horizontal.
Patent DE-2702338-A1 (DE)
Title: Centrifugal force fed blade ring wood-chipping machine - has propeller distributor and radial ventilator fan-wheels with scoop ring for blown air
Inventor: MUELLER WALTER
IPC: B27L11/02
Filed: 1977-01-21
Abstract: The blade-ring cutter for wood chips has a fixed blade ring in a mill housing. A rotating fan wheel has vanes throwing the inflowing wood chips against the blade-ring, to be centrifugally driven against the inward facing blades and cut into flat pieces. An additional distributor fan wheel (7) of propeller type is provided on the wheel hub (5) for even width distribution of the wood chips on the blade-ring (3). An additional ventilator fan wheel (8) in radial ventilator form is on the side of the thrower fan wheel (4) facing the input (2). A fixed conductor scoop ring (10) for the air blown from the ventilator vanes is open only in the rising and top part segment of the ring towards the housing (1) chip outlet channel (12).
Patent DE-2707149-A1 (DE)
Title: Boot toe location for ski binding - has anchor bolt located in boot sole and clamped by spring loaded plungers when placed on ski
Inventor: MEYER HANS
IPC: A63C9/08
Filed: 1977-02-18
Abstract: The ski binding has a toe location which includes a hinged anchor bolt (2) that is placed in a slot at the front end of the ski boot sole (4). The anchor bolt is Tee-shaped and can be swivelled forwards so that it is possible to walk with the ski boot on hard road surfaces. When located on a ski, the anchor bolt points downwards so that it can be located by a hole (5) of the binding plate (6). The binding plate includes four spring loaded plungers (8) which are perpendicular to each other, and which point towards the anchor hole. The rounded plunger heads engage the undercut neck on the anchor bolt and thus locate the ski boot on the ski.
Patent DE-2707361-A1 (DE)
Title: Powder proportioner with pitot tube extractor unit - is for powder and gas mixt. and has powder and carrier gas mixt. control
IPC: B05B7/14
Filed: 1977-02-21
Abstract: The powder proportioner consists of a powder store with outlet conduit. A proportioning disc is located in the conduit. An injector is fastened to the disc. The injector has a pressure nozzle, connected to a carrier gas feed conduit, and a mixing nozzle, with a connected feed conduit for the powder/gas mixture. A Pitot tube extraction unit (24) removes part of the powder/gas flow. With only one of these units, the Pitot tube (19) is inserted into the feed conduit (13), and connected to an extractor conduit (23). With the use of several units, the subsequent Pitot tubes (29) are each inserted into the previously extracted mixture flow. The conduits (13, 16, 23, 26) accommodating the tubes are connected to a separator (17).
Patent DE-2708844-A1 (DE)
Inventor: LAMBRECHT DIETRICH
IPC: F01D21/00
Filed: 1977-03-01
Abstract: A measuring device (10) which detects the existence of a network short-circuit acts via a first comparison device (32) on a switch (4) between the generator-turbine unit (3, 2) and the network (6) in the sense of tripping it when the tripping condition for a second measuring device, which is connected upstream of the first comparison device, is at the same time met. Said second measuring device is constructed as follows:   a) a timer stage (29), which is started when a power change occurs, and a device (20, 21, 23) for measuring the power difference occurring within the running time of the timer stage (29) are connected downstream of a power measuring instrument (9); b) connected downstream of the timer stage (29) and the device (20, 21, 23) for measuring the power difference is a further comparison device (26) which determines whether a predetermined adjustable value for the measured power difference has been exceeded within the running time of the timer stage (29); c) connected downstream of the further comparison device (26) is a timer stage (40) whose delay time corresponds to the permissible time for the network voltage to return; d) the output of the timer stage (40) is connected to an input of the first comparison device (32).   A protection apparatus is thus obtained which causes disconnection selectively, as a function of the disturbance, only when said disconnection is necessary taking into account the expected overstressing of the turbine-generator shaft. <IMAGE>
Patent DE-2714364-A1 (DE)
Title: Carbon fibre reinforced carbonaceous bodies - of improved density and strength
Inventor: BRUECKMANN HEINZ DIPL PHYS
IPC: C04B35/83
Filed: 1977-03-31
Abstract: Carbon fibre reinforced carbonaceous bodies are made by impregnating carbon fibre weave, felt, yarn, cut or endless fibre with a bulk mesophase forming binder which consists of 98-100 wt.% quinoline insoluble fraction of coal tar or petroleum pitch contg. 3-8 wt.% volatile components, followed by carbonising at 400 degrees-1000 degrees C. (450 degrees - 650 degrees C.) under a pressure of 5-80 (10-35) N/mm.2. The carbon fibre material forms 20-80 (60-80) vol.% of the body. The process is cheaper than prior art. The body can be shaped after impregnation.
Patent DE-2717892-A1 (DE)
Title: Amplifier circuit with complementary push=pull stage - produces high gain at very low supply voltage and has connectors of output stage transistors connected together
Inventor: BITAR OMAR DIPL ING
IPC: H03F3/30
Filed: 1977-04-22
Abstract: The amplifier has a complementary pushpull stage that requires a very low supply voltage to achieve high gain. The collectors of the pushpull output stage transistors are connected together and form the amplifier output. The bases of the output transistors are connected together and form the input. The resistor (18) that connects together the bases of the output transistors (20, 21) is part of the voltage divider that sets the working point of the amplifier.
Patent DE-2718744-A1 (DE)
Title: Shearing machine for cutting concrete reinforcing rods to length - runs on rails past ends of rod storage racks
Inventor: PEDDINGHAUS CARL
IPC: B65G1/04
Filed: 1977-04-27
Abstract: An installation for cutting concrete reinforcing rods to the required length has a number of racks (9) to store the rods (1) according to size and quality. A shearing machine (2) runs on rails (12) at right angles to the lin e of the rods (1). The required rod (1) is placed on the conveyor (5) which pushes it through the jaws of the shears (10) onto the platform of the shearing machine. The required length is measured off on the scale (18) and the rod is then held firmly by the hydraulic clamps (14) whilst it is sheared by the shears (10). The sheared rod is then moved to the collecting platform (3). The machine (2) then travels along the rails (12) to take the sheared rods away.
Patent DE-2726547-A1 (DE)
Title: Remotely operated inspection machine for inaccessible duct welds - esp. in restricted space around nuclear reactor pressure vessel
Inventor: GUGEL GEORG
IPC: G21C17/017
Filed: 1977-06-13
Abstract: A co-ordinate trolley or carriage capable of travelling in two mutually perpendicular directions (X, Y) operates inside the space surrounding the pressure vessel and comprises a travelling arm; articulated to the end of this arm is a drag lever, at the remote or free end of which the inspection head is mounted. The plane of the co-ordinate movements (X, Y) and the plane of swing of the drag lever are generally perpendicular to the duct under inspection and thus in the same plane as the weld to be inspected. Thus, it is possible for the drag leverl to follow round the entire circumference of the duct in four successive quadrants simply by moving the coordinate carriage and sliding arm successively in the (X) and (Y) directions. The operating sequence is extremely simple and special stepping mechanisms are unnecessary for judding the distance travelled along the seam by the inspection head.
Patent DE-2726696-A1 (DE)
Title: Protective circuit for control of capacitor motor - has monitoring relay which drops out, independently from mains voltage fluctuation, when speed drops and/or on excessive torque
Inventor: NIEFNECKER ALBERT
IPC: H02H7/085
Filed: 1977-06-14
Abstract: The protective control is speed and/or load dependent, and the motor concerned has several phase windings, and can be connected to the mains through a switch monitored by a relay. The motor (M) or its capacitors (9) is in a secondary circuit (17) with a rectifier (G12) controlling the mains switch relay (18) with a control resistor (R5) and a Zener diode (ZD3). In order to compensate for mains voltage fluctuations, a stabilising circuit (12) - with a voltage divider (14) - is provided, so that the relay (18) drops out, when the motor (M) is connected to the mains - independently from mains voltage fluctuations - and relay holding voltage value is not reached owing to drop in motor speed and/or excessive torque.
Patent DE-2735500-A1 (DE)
Title: AF signal dynamic range automatic expanding or compressing circuit - uses two FETs for controlling gains of two series connected amplifiers, switch and separating amplifier
Inventor: SCHROEDER ERNST DIPL ING
IPC: H03G3/20
Filed: 1977-08-06
Abstract: The circuit includes two series connected amplifiers (6, 24) of which the gains may be controlled in like or in opposite senses, by the action of respective field effect transistors (FET) (17, 31) to control the compression or expansion respectively of the input signals. A direct control voltage from a generator (33) and in addition, an alternating voltage derived from that dropped across the source-sink path of the FET (17) is applied to the control electrodes of the FETs. To do this, the junction of resistors (14, 15) connects to a sepg. amplifier (20) to derive an alternating voltage which is about half of the cross the source-sink of the FET(17). For expansion, switch (13) connected to contact (11), the input of the second amplifier (24) is effectively connected directly to the input terminal (1).
Patent DE-2738964-A1 (DE)
Title: Air-cushion for aircraft to facilitate take=off and landing - uses retractable electrically-powered disc rotors in wings to form cushion-forming space
Inventor: HANSCHMANN HORST
IPC: B60V3/08
Filed: 1977-08-30
Abstract: The air accumulation is formed under the wings by flow speed reduction or direction towards the ground by a rotating system under the wings. The rotating system comprises several disc rotors powered by electric motors and act at right angles into the wings. During flight, the system is retracted into the wings and the slis on the lower side are sealed off by slides. By varying the speed of the individual motors and adjusting the angle of border strips, the air cushion volume can be controlled to facilitate stabilisation of the aircraft during take-off and landing.
Patent DE-2739984-A1 (DE)
Title: Retention ring for dental plaster components - has several inner openings and outer edge of any desired form
Inventor: HEYER VOLKER VON
IPC: A61C9/00
Filed: 1977-09-06
Abstract: Pretension ring is used for mechanically interconnecting two plaster parts in the field of dental modelling. Prior art devices have exhibited an outer edge in the form of a toothed gear, but this is dispensed with by providing several through holes instead of the usual single opening. This is found to achieve secure anchoring of the two plaster parts. The ring is desirably of plastics, the light weight of which hinders sinking of the ring into the plaster mass. The outer edge can have any desired form.
Patent DE-2740209-A1 (DE)
Title: Suspension polymerisation of vinyl chloride - in presence of sorbitan ester(s) to give granular porous polymers
Inventor: DEUSCHEL WALTER DIPL CHEM DR
IPC: C08F2/18
Filed: 1977-09-07
Abstract: Vinyl chloride is polymerised opt. with is not >30 wt.% of other copolymerisable monomers, in presence of free-radical catalysts, dispersing agents, polymerisation additives, and sorbitan esters. The esters used are liq. at room temp., their acid gps. are derived from branched-chain satd. carboxylic acids, and they have a hydro-lipophile equilibrium value 7 (pref. 3-7). Vinyl chloride is pref. polymerised in a closed system. In such a system polymer solids, e.g. sorbitan mono-palmitate, are not readily introduced. Certain solvents, e.g. toluene, are retained by the polymer; PVC contg. entrained polymer is not suitable for packaging. The method overcomes the problems of solvent retention.
Patent DE-2741805-A1 (DE)
Title: Gasification of solid fuel in fluidised bed reactor - with admission of reactants at various points to control temp. profile
Inventor: FRANKE FRIEDRICH H DR ING
IPC: C10J3/56
Filed: 1977-09-16
Abstract: In the gasification of solid fuel with oxygen-contg. gas and/or steam, CO2 or other gases in a fluidised bed reactor, the temp. profile along and/Or across the reactor axis is controlled by addn. of reactants not only to the fluid bed zone, but in one or more points in the middle and/or upper zone of the post-reaction space above the bed. Flexibility of operation of the reactors is increased, allowing their use with fuels differing from those for which they were designed and variation in the prod. gas compsn.
Patent DE-2743814-A1 (DE)
Title: Rotary pump or engine with two pistons - has drive external to cylinder from pistons to crankshaft
Inventor: HOEHN BERND-ROBERT DIPL ING
IPC: F01C1/07
Filed: 1977-09-29
Abstract: The machine has a circular cylinder in which two sets of vanes rotate at varying speeds. This produces variable volume working chambers between them. Each set of vanes is rigidly connected to a shaft which is taken out through a seal in the end face of the cylinder. The shaft carries a gear outside the cylinder. The gears mesh with pinions which are mounted eccentrically on cranks to give a drive which produces uniform rotation of the crankshaft from varying rotation of the cylinder gears. Both sets of gears are connected to a common crankshaft outside the cylinder.
Patent DE-2743964-A1 (DE)
Title: Voice controlled multiplex signal transmission system - fills gaps in speech due to overloading by repetition or suitable use of preceding signals
Inventor: METZGER ERICH DIPL ING
IPC: H04J3/17
Filed: 1977-09-30
Abstract: A maximum specified number of subscriber channels can simultaneously carry out conversations through a smaller number of transmission channels. This is achieved by allocation of a transmission channel to a subscriber channel only when he actually speaks (TASI). When the number n of channels available for transmission, e.g. n = 4, and the number of active subscriber channels is, e.g. n = 8, gaps are produced by cutting out of signals due to overloading. These gaps are filled at the receiving end by repetition or suitable utilisation of immediately preceding signals.
Patent DE-2746004-A1 (DE)
Title: Electrical clinical thermometer giving rapid reading - uses algorithm to determine asymptotic end point from two successive temp. readings
Inventor: GOLDSTEIN HAROLD
IPC: G01K7/42
Filed: 1977-10-13
Abstract: An electrical clinical thermometer is used to give a rapid reading. It operates using a given algorithm, so that the asymptotic point of a temperature measurement can be indicated by taking two readings as the temperature rises. A transducer (20) such as a thermistor delivers a signal by way of a Celsius/Fahrenheit switch (28) to a temperature/frequency A/D converter (30). The measuring time interval (C) is determined by a logical flip-flop circuit (42). The counter (34) output passes by way of an intermediate store (16) and a multiplexer (48) to an LED indicator device (50).
Patent DE-2753261-A1 (DE)
Title: Hair hygrometer with humidity sensitive strand - which is attached to adjustment lever whose hinge joint is outside its axis, on other side from pointer
Inventor: DOSTMANN HEINZ
IPC: G01N19/10
Filed: 1977-11-30
Abstract: The hygrometer has a base plate, a pointer mechanism, a two-armed adjustment lever, a humidity sensitive strand attached to one end of the adjustment lever, and a tension tie hinged on the adjustment lever other end. Its movement is transmitted to the pointer mechanism. The strand (10) and the tension tie (42) run from the adjustment lever in the direction towards the pointer mechanism. The hinge joint (38) of the adjustment lever (22) is eccentric w.r.t. its axis, on its side opposite to the pointer mechanism (44).
Patent DE-2753792-A1 (DE)
Title: Anticancer compsns. with no side effects - contains N-2-ethyl-hexyl-3-hydroxy-butyramide or its di:carboxylic acid half ester derivs.
Inventor: ICHIKAWA ATSUSHI PROF
IPC: A61K31/22
Filed: 1977-12-02
Abstract: Anticancer compsns. contain N-(2-ethylhexyl)-3-hydroxybutyramide (I) or its dicarboxylic acid half ester as the active ingredient together with a carrier. Synergistic anticancer compsns. contain (I) or its dicarboxylic acid half ester and adrenalin or noradrenalin. The compsns. have a positive cancer inhibiting effect at relatively low concns. and are essentially free from side effects esp. on the haematogenic and digestive organs. After prolonged treatment there is no sign of leukopenia, no loss of appetite, no nausea, no vomiting and no other adverse symptoms. LD50 of (I) = 5450 mg/kg (male mice p.o).
Patent DE-2753838-A1 (DE)
Title: Antiinflammatory corticoid water-soluble ester cpds. - prepd. by esterification of 6-chloro-11,17,21-tri:hydroxy-1,2-methylene-3,20-di:oxo-4,6-pregn- diene with di:carboxylic acids
Inventor: PETZOLD KARL DR
IPC: C07J53/00
Filed: 1977-11-30
Abstract: New water-soluble corticoids are cpds. of formula (I): where A is a C-C bond or is not >8C hydrocarbon chain; and X is H or the cation of a physiologically innocuous base. (I) can be used for the treatment of inflammatory disorders and e.g. shock following accidents, burns, operations, circulatory collapse after poisoning or cardiac infarct, pulmonary enbolism, asthma etc. Compared with known water-soluble corticoids, they have a more favourable relationship between therapeutic effect and tolerance.