baber/WOPTO huggingface dataset:
Patent DE-1957750-A1 (DE)
Title: Substd hydroxy crotonic acids
Inventor: NICHL JOSEF DIPL-CHEM DR
IPC: C07C49/813
Filed: 1969-11-17
Abstract: Crotonic acids of formula I:- where one or two of R1, R2 and R3 = l. alkyl opt. substd. by OH, hal, NO2, NH2, NHCOMe, CN, CONH2, opt. substd. by Me, CO2Et, OH, OMe, SMe, SOMe or SO2Me are prepd. by redn. of the corresp. ketone with a complex metal hydride or activated aluminium. The novel ketones are prepd. e.g. by Friedel-Crafts acylation of a biphenyl with maleic anhydride. I and salts of I prolong bleeding times and have antiphlogistic, analgesic and anti-tussive activity.
Patent DE-1959102-A1 (DE)
Title: Menthol impregnater for cigarettes
Inventor: RUEDIGER ERNST
IPC: A24F25/00
Filed: 1969-11-20
Abstract: Menthol container for cigarette impregnation by the user has a shell as thick and long as a cigarette. Pref. the shell is rolled from many windings, of impermeable foil, into which menthol is rolled or sucked. The foil may be plastics or metal.
Patent DE-2008112-A1 (DE)
Title: 1, 6-bisphthalimido-trimethylhexanes - adhesives for textiles
IPC: C07D209/48
Filed: 1970-02-21
Abstract: 2,4,4-)trimethylhexanes are adhesives for use in the textile industry, esp. for sticking, e.g. polyamide cloth strips to be printed on to movable base layers, e.g. of rubber cloth. They may be prepd. by reacting 1,6-diamino-2,2,4- and/or 1,6-diamino-2,4,4-trimethylhexane with phthalic acid or anhydride under conditions known for phthalimide prodn.
Patent DE-2034590-A1 (DE)
Title: 1-amino-2,5-dialkoxy-4-chlorobenzene prepn
Filed: 1970-07-11
Abstract: Reduction of 1-nitro-2,5-dialkoxy-4-chlorobenzene using iron and formic or acetic acid in the presence of water and an organic solvent gives 1-amino-2,5-dialkoxy-4-chlorobenzene. Pref. solvent is xylene benzene, toluene or their mixtures, and pref. reaction temp. is 90-100 degrees C.
Patent DE-2116485-A1 (DE)
Title: Washing endless material - in a continuous washing appliance suitable for strands and widths of textile material
IPC: D06B3/04
Filed: 1971-04-05
Abstract: Continuous washing appts. for the liquid treatment of strands and widths of textile material features a vertical passage with fluid-feeding mechanisms at its mouth and with nozzle-shaped constrictions over its length. At its outlet side the passage has a vessel for the liquid contg. a rotatable screen drum through which fluid passes from the outside and over which the material is partially wound. The drum has a pump, the pressure side of which is connected by e.g. a pipe, with the fluid-feeding mechanisms. After treatment, the material is passed to a press. The arrangement is suitable for the continuous washing of strands or widths of materials and combines the advantages of the J-shaped washing unit with those of the screen drum washer.
Patent DE-2121250-A1 (DE)
Title: Metallised copying paper - with reduced lustre
IPC: B41M5/24
Filed: 1971-04-30
Abstract: Recording (copying) paper, has a metal layer deposited by high vacuum evaporation, the paper base being provided with micro-embossing by pressing it in hte surface smoothing or calendering section of the paper-making machine by roll, the cylindrical surface of which has been give a corresp. microstructure either mechanically e.g. by sandblasting, or chemically e.g., by etching.
Patent DE-2122187-A1 (DE)
Title: Surfactant compsns - esp for preventing moisture deposition on glass,contg viscosity-reducer and antifreeze
IPC: C09K3/18
Filed: 1971-04-30
Abstract: Surface active agent-contg. compsn. for preventing deposits, e.g. moisture or misting. on surfaces, esp. anti-dim compsns. for protecting window-shields of work-saving equipment, contains an added cpd. (I) for lowering surfactant-viscosity, e.g. water, and also a known anti-freeze (II), e.g. glycol. Pref. compsn. contains 10-80 (40) % (I), esp. water, 10-50 (20) % surfactant, and 10-50 (40) % (II).
Patent DE-2162126-A1 (DE)
Title: Anhydrous sodium sulphate crystal prodn - by crystallisation from aq soln upon addition of acetone
Inventor: KESEBERG K
IPC: C01D5/00
Filed: 1971-12-15
Abstract: Crystals of unifoom, relatively large size, are produced by treating an aq. Na2So4 soln. with acetone under conditions of low supersaturation. This is effected in a vertical reactor contg. two immiscible aq. phases; the upper phase is acetone-rich and contains little Na2SO4; and the lower phase has a low acetone content and high Na2SO4 content (there is a miscibility gap in the Na2SO4-water-actone system). Fresh Na2SO4 soln. is introduced into the lower phase, whilst acetone is added to the upper phase. Crystallisation occurs in the contact zone between the two phases, where a propeller stirrer is placed. Large crystals fall down through the lower phase into a collector and are withdrawn therefrom. The crystals have good filtering properties.
Patent DE-2165646-A1 (DE)
Title: Sulphur recovery - from gases contg hydrogen sulphide and sulphur dioxide
Inventor: PETER SIEGFRIED PROF DR
IPC: C01B17/05
Filed: 1971-12-30
Abstract: H2S and SO2 contg. gas is passed into an absorber at 80-150 degrees pref. 115-130 degrees contg. a polyalkyleneglycol and/or its mono- or di-alkyl ether of formula R'(OR")x R3 (where R' and R3 are each H or lower alkyl; R" = pref. 1-4C alkylene; and x = 1-20, pref. 1-14), in which a basic substance is dissolved. Pref. glycols are polyethylene-, polypropylene- and polybutylene glycol. The process is used for complete desulphurisation process which itself removes 96-97% of the contained sulphur.
Patent DE-2205815-A1 (DE)
Title: N-(oxazolin-2-yl)-piperazine - with antitussive activity
Inventor: GOEBEL AXEL DR
IPC: C07D413/04
Filed: 1972-02-08
Abstract: Title cpds. of formula (I): (where R1 is 1-6C alkyl (opt. substd. by 2-5C alkoxycarbonyl), phenyl (opt. substd. by 1-4C alkyl, 1-2C alkoxy or halogen), or a mono- or bi-cyclic heterocyclic residue with 1-4N atoms and opt. an O- or S-atom (opt. substd. by 1-4C alkyl); and R2-R5 are H, 1-6C alkyl, chloromethyl, chloroethyl, or vinyl, or 2 adjacent residues R2-R5 can be linked to form a 5-8C cycloalkyl residue) and their acid addn. salts are antitussives having a sedative effect but no analgesic, cardiovascular or respiratory effects.
Patent DE-2208188-A1 (DE)
Title: Molten metal mixer - of increased capacity
IPC: C21C1/06
Filed: 1972-02-22
Abstract: Molten metal mixer is in the form of a fixed receptacle with >=3 intercommunicating chambers with >=2 posns. It has in the base passage openings for the liquid metal. At least one chamber may be gas tightly sealed by a cover and connected to a pressurised, pref. preheated, line and the other chambers each have a topping-up opening or evacuating hole.
Patent DE-2221726-A1 (DE)
Title: Dust sepn from gas - esp coarse particles from lime kiln flue gas
Inventor: BECKENBACH KARL DIPL-ING
IPC: B01D45/04
Filed: 1972-05-04
Abstract: The gas is directed in two opposed streams which impinge directly in a pref. shaft-shaped chamber; this action decelerates the dust particles at the centre of the chamber causing them to leave the chamber in an increased concn. in a portion of the gas flow perpendicular to the entry flows. Pref. this gas flow leaving the chamber and contg. a high concn. of dust is directed downwards and divides into two sub flows.
Patent DE-2233132-A1 (DE)
Title: Pressure casting machine - piston having a coolant bore and a Be-Cu sleeve
Inventor: KUNZ HUGO
IPC: B22D17/20
Filed: 1972-07-06
Abstract: The machine has a piston with a central dead-end bore proceeding from the piston face side opposite the front piston compression surface, into which bore the piston rod coolant channel runs. The bore and the piston base are contained by a holder which also supports an axially-clamped and radially-centered piston sleeve, pref. comprising a Be-Cu alloy, the outer peripheral surface of which comprises part of the piston sliding surface in an axial direction. Anti-friction props. are improved.
Patent DE-2325732-A1 (DE)
Title: Hollow aircraft mouldings from laminates - prestressed and bonded then internally pressurised in fixed mould
Inventor: KAMOW NIKOLAJ ILITSCH
IPC: B64C11/20
Filed: 1973-05-21
Abstract: A hollow moulding, esp. a helicopter rotor blade or air-screw, is pressed from a blank as follows: a blank, made by gluing flexible sheets together to form a laminate, is placed over an internal mandrel and prepressed to bond the sheets together: then the ends of the blank are joined to form an internal void into which an elastic bag is fitted. The blank is placed in a pressing mould and the bag is inflated to complete pressing.
Patent DE-2331173-A1 (DE)
Title: Eccentric screw-type pump - adjustable for elastomer wear by straps along rectilinear thread parts
Inventor: BAUERFEIND HERBERT
IPC: F04C2/107
Filed: 1973-06-19
Abstract: An eccentric screw-type pump will suffer a considerable reduction in capacity when the rubber lining of the stator is worn by contact with the scrolls of the rotor. To compensate for this wear and ensure a continuous contact it is pointless to compress the whole lining because the wear is concentrated on the rectilinear sections of the profile. This can be remedied by reinforcing the elastomer lining radially outside the rectilinear sections of its internal thread profile by helical straps which can be tensioned in a radial direction. These straps can have outer ribs and be part of the stator; they are tensioned by clamps or by grub screws.
Patent DE-2331844-A1 (DE)
Title: Bonnet- or boot support for vehicles - with a supporting rod and pivoting guide sections
Inventor: MANECK ERNST
IPC: E05C17/08
Filed: 1973-06-22
Abstract: The supporting rod is fastened to the cover to be opened, while the guide section is pivoting fastened to the vehicle body. The guide has a guide channel, which longitudinally guides the rod. When the cover is opened upwards, the rod supports itself in the guide, after a slight swivelling movement. The guide channel consists of two parts. The first part is of a width, corresponding to the rod thickness. The second part is angled-off the first, being directed towards the door. The width of this part is dimensioned, to allow for the swivelling of the rod.
Patent DE-2335873-A1 (DE)
Title: Mineral fibre plate with metal support - is made by blowing bonding agent impregnated mineral fibres into expanded metal plate
Inventor: KARNER KARL
IPC: E04F13/04
Filed: 1973-07-14
Abstract: The mineral fibre plate is built up by blowing mineral fibres in an air medium against the expanded metal plate. The fibres pass the openings at right angles to the plate surface. An inclined air stream is used to curve these fibres so that the mineral fibres are wrapped around the ribs of the expanded metal frame and are hence anchored to this plate. The mineral fibres are chopped to the required lengths before blowing in order to achieve the required thickness of the composite plate and impregnated with bonding agent before application. The deflecting air current is blown at a pre-determined angle on the plate. Improved adhesion between the metal and fibres is achieved if the expanded metal plate is coated with a bonding agent such as bitumen.
Patent DE-2337395-A1 (DE)
Title: Beta-naphthalene sulphonic acid separation - from alpha-naphthalene sulphonic acid by selective extn. with ketones
Inventor: PIETZSCH SIEGFRIED DIPL-CHEM D
IPC: C07C309/35
Filed: 1973-07-23
Abstract: Selective separation and recovery of beta-naphthalene sulphonic acid (I) from its mixt. with the alpha-isomer (II) takes place by (a) treating the isomer mixt. with a ketone which is immiscible or incompletely miscible with water at room temp., pref. diisobutyl ketone, and (b) separating (I) in crystallised form. In a pref. process, isomer mixt. is dissolved in ketone at increased temp., e.g. 15-150 (20-120) degrees C, pref. at boiling temp. of ketone or of its azeotrope with water, followed by cooling and separating crystallised (I).
Patent DE-2342593-A1 (DE)
Title: Fibre-reinforced plastics mast made by helical winding - followed by pressing on of outer tube to give shape and finish
Inventor: KRAEMER REINER
IPC: B29C70/00
Filed: 1973-08-23
Abstract: Olefins are homo- or co-polymerised in the presence of a novel catalyst contng. (a) a transition metal catalyst component prepd. by reacting a Ti- or V cpd. with a reaction prod. (R), formed from a solid Mg dihalide carrier (I), pref. MgCl2, an organic Al cpd. (II), and (b) an organic Gp. (I) or (III) metal cpd. catalyst component. (R) is prepd. by either (i) reacting (II) with A 1-12C aliphatic or aromatic alcohol simultaneously or successively in given sequence with (I), or (ii) reacting (II) with the alcohol and then reacting prod. formed with (I). Pref. polymerising C2H4 or a mixt. of C2H4 and an alpha- and/or di-olefin, to form high or low mol. wt. polymers, e.g. high mol. wt. polyethylene, polyethylene wax having mol. wt. 1000-8000, useful as pigment dispersant or printing inks or lubricant, and microwaxes having mol. wt. 500-900.
Patent DE-2344091-A1 (DE)
Title: Electronic control for windscreen washer and wiper - is operated by remote press button, relays and timing circuit
Inventor: KERSCHER MAX
IPC: B60S1/60
Filed: 1973-08-31
Abstract: The washer is connected to two relays with its two supply lines while the wiper motor has a relay in one supply line. The working contacts of the relays are joined together to one supply point while the other contacts are joined to a second DC supply. The coil of the wiper relay is in parallel to the coil of one of the washer relays. The system is operated by a press button which when pressed operates one of the washer relays and when released operates the other washer relay and the wiper relay for a set time. The system provides a washer/wiper control without the motor current running through the control button.
Patent DE-2346627-A1 (DE)
Title: Screw thread cutting attachment for lathe - automatically controls initial tool position, thread cutting, tool withdrawal and return
Inventor: THUMM HELMUT
IPC: B23G3/00
Filed: 1973-09-15
Abstract: The device is driven by the shaft through the clutch driving the toothed wheel which in turn drives the worm which drives the worm wheel. Two cams are fixed to the shaft of the worm wheel, one cam drives the tool slide in one direction and the other returns the slide. The feed of the tool is controlled by the oscillating lever together with the ratchet and pawl. The mechanism is so connected that once the tool is set in its initial cutting position the tool cuts the required length of thread, it is then withdrawn from contact with the workpiece and returned to its initial position to repeat the cycle.
Patent DE-2347168-A1 (DE)
Title: TV receiver video signal cct. - is designed for separation of vertical and horizontal synchronisation pulses
Inventor: KOUBEK MICHAEL
IPC: H04N5/08
Filed: 1973-09-19
Abstract: The separation stage for the composite synchronisation signal has a transistor to whose base the video signal is applied through a first differentiation circuit; this composite signal is collected from its collector. The base of a second transistor is connected through a second differentiating circuit to the first transistor collector; synchronisation signals with opposite polarity appear at the second transistor collector; vertical synchronisation pulses' width is reduced in accordance with the second differentiating circuit time constant; inputs of an OR gate are connected to the two collectors; vertical synchronisation pulses appear at its output during a period which was cut off by the second differentiating circuit from the vertical synchronisation pulse width.
Patent DE-2352381-A1 (DE)
Title: Pulse generator has at least two transistors - which alternately connect voltage to output for generating bipolar pulses
Inventor: HUML FRANZ DR-ING
IPC: H03K17/66
Filed: 1973-10-18
Abstract: The two outputs of the pulse generator are connected to electronic switches which in their rest state short-circuit the output; when one switch is operated, one terminal or a voltage source is connected, and when the other switch is operated it connects the other terminal of the voltage source. The output consists of a transformer, whose primary winding is connected to the switches; the switches consist of two field-effect transistors, which short-circuit the output in their rest state and their gate-source paths are controlled through a capacitor, or through a transformer followed by a rectifier.
Patent DE-2352699-A1 (DE)
Title: Arrangement for removal of dust particles from pickup cleaners - has brush cleaner for magnetic pickups dedusted by knocking device
Inventor: SCHLUNK MANFRED
IPC: G11B3/58
Filed: 1973-10-20
Abstract: A spring loaded knocking device is used to remove dust particles from a fine-hairbrush-cleaner, which is used to collect dust from a sound reproduction-pickup, on a record player. The cleaner is mounted on a holder which is spring loaded and which leans with its contact face against the surface of the pickup carrier during its tracking movement and against the switching arm. The knocker, mounted in a spring loaded and adjustable manner against a stop is located against a spring in its rest state and which at starting is thrown against the cleaner to give it a knock to dedust it.
Patent DE-2364354-A1 (DE)
Title: Press filter for pulp - which is fed to several perforated drums and squeezed by an endless belt which passes round each drum
IPC: B30B9/24
Filed: 1973-12-22
Abstract: A press filter for squeezing pulp comprises several perforated drums which rotate on parallel axes and a closed endless belt which passes round a portion of each drum. Pulp is supplied through individual ducts to each drum from a central duct to be squeezed between the drums and the belt. Fluid from the pulp drains through the perforations into the drums and is discharged into an underlaying trough. The solids are removed upstream from where the belt leaves the drum surface by a pickup knife and a worm conveyor. The squeezed solids are prevented from resuckling fluid squeezed from the pulp as soon as the pressure decreases.
Patent DE-2364976-A1 (DE)
Title: Hammer crusher for hot clinker - has rotor strikers cooled by tangential air flow
Inventor: KUHNHENN MANFRED
IPC: B02C13/288
Filed: 1973-12-28
Abstract: Hammer or impact crusher for hot clinker has a rotor carrying the strikes and air intakes to cool the rotor. The cooling air intake duct extend over the whole width of the strikers, in the peripheral wall of the crusher housing, on the region of the rotor, seen in the direction of rotation, adjoining the zone acted on by the hot material on one side of the rotor only. Preferably baffles are displaceable within the housing. The ducts are tangential to the striker circle. The baffls are axially parallel and below the rotor in the lower part of the housing, and are adjustable. Effective cooling of the strikers is obtd.
Patent DE-2366542-A1 (DE)
Title: Cigarette tightness testing rig - seals ends by test pressure rubber cups inside back pressure chamber
Filed: 1973-04-06
Abstract: Tipped cigarettes are continuously tested for airtightness on a drum with grooves which moves the cigarettes through a back pressure chamber in which a sealing pressure equal to the test pressure is maintained. The test pressure is applied to the ends of the cigarettes through rubber cups, and the pressure loss caused by the flow through the cigarettes is measured and used as an indication for the quality of the cigarettes and filter covering. This achieves a better seal of the test air entrance and of a cigarette; it prevents rejecting a cigarette as imperfect if the seal was merely affected by a tobacco shred.
Patent DE-2403703-A1 (DE)
Title: Stabilised A.C. operation of fluorescent lamps - is for photo-metry with lamp connected in series with inductance
Inventor: SCHMIDT-RABENAU HARTMUT DIPL I
IPC: H05B41/392
Filed: 1974-01-26
Abstract: The lamp is supplied with mains frequency periodic capacitor discharges. The capacitor is alternately connected to the mains for charging and to the lamp circuit for discharge. It is accurately charged from a reference voltage. The lamp circuit is in the form of a damped oscillating circuit. A control circuit monitors the capacitor discharge and closes the switch in the lamp circuit on reception of a signal derived from the mains voltage. This signal is derived from zero crossings of a voltage whose phase is shifted by 90 deg with respect to that of the mains voltage. The switch is opened when the lamp current crosses zero. The switching elements are typically transistor or triac controlled.
Patent DE-2407217-A1 (DE)
Title: Thermal treatment of granular material - partic drying and partial degassing of wet coal in a circulating inert gas
Inventor: BALKHAUSEN ALBERT DIPL ING
IPC: C10B49/04
Filed: 1974-02-15
Abstract: In the thermal treatment of granular solids, particularly coa, in an indirectly heated conveying device, closed off in gastight manner, with respect to the exterior, in which device the solids are brought into contact with gases, inert gases are used as treatment gas and circulated through the conveyor in closed circuit. PErmits the thermal treatment e.g. drying and degassing, to be carried out continuously in a gas atmosphere of pre-determined chemical and physical properties.
Patent DE-2410048-A1 (DE)
Title: Two hand safety control of hydraulic cylinders - check valve blocks outlet flow from underside of cylinder and top side is exhausted when valve is released
Inventor: KIERSCH OSKAR
IPC: F16P3/22
Filed: 1974-03-02
Abstract: A control circuit ensures that the power cylinder of a hydraulic press can only move when two manually operated valves are held open. The cylinder is supplied with fluid from a 4-way valve on two power lines. A pilot controlled check valve is located in the supply line to the underside of the piston and the controlling signal is generated from a control block. The top side of the piston is coupled to a controlled check valve and a pressure level valve, both of which are controlled by signals from the main control block. The control block has two valves each combining a 2-way function, with a three way function. Other than when both valves are actuated the power cylinder is held in a locked condition with low pressure on the top side and a closed column of fluid on the underside. If the cylinder is in motion and one valve is released, the piston motion is immediately arrested.
Patent DE-2412893-A1 (DE)
Title: Motor vehicle window actuator - has actuating shaft and brake and with pinion forming unit on door stiffener
IPC: E05F11/44
Filed: 1974-03-18
Abstract: The window actuator mechanism is held on the door stiffener which is required from the safety point of view and the stiffener is rationally combined with the actuating mechanism. The actuating shaft passes through the brake housing and a pinion at the end of this shaft actuates a toothed segment of the window lifting and lowering arm. The actuating shaft, the brake housing, the pinion and the window actuating arm form a compact unit which is directly connected to the longitudinal stiffening strut 1 within the door. The actuating shaft is held in the brake housing which has a support bracket which is held on by rivets on the stiffening strut. This lateral stiffening strut can be a pressed steel or a tubular profile.
Patent DE-2425046-A1 (DE)
Title: Hydraulic stroke control of reciprocating impact tool - has hollow impact piston and rotatable control piston with tapered outer recess
Inventor: MANTEN HEINZ
IPC: E21B1/26
Filed: 1974-05-24
Abstract: The device is of the type intended for use with an impact ram or pile extractor and composing a hollow impact piston which reciprocates in a cylinder and transmits the impact energy, the piston being connected with a sliding control valve whose central portion forms a cylindrical control piston with control surface and which controls a valve so as to determine the actuation of teh impact piston. The sliding control valve is provided with a recess where the hydraulic line enters the hollow impact piston, which recess extends from the cylindrical surface of the valve and widens towards the end face of the valve, the intersection of the cylindrical surface with the recess forming part of the control surface.