baber/WOPTO huggingface dataset:
Patent DE-2228334-A1 (DE)
Title: Anthraquinone alpha phenyl ethers prepn - from alpha nitro anthraquione and phenol
Inventor: ELSER WOLFGANG DR
IPC: C07C46/00
Filed: 1972-06-10
Abstract: The process effected with heating, is improved by using a water miscible aprotic solvent (I) for the reaction, 1.0-1.9 moles phenol and 0.5-2 moles acid binder being used per NO2 gp. Use of (I) as solvent decreases the amts. of phenol and acid binder required, and gives higher space-time yields. Products are intermediates for dyes. EXAMPLE 50 pbw 1-nitroanthraquinone (90%), 100 pbw DMF, 40 pbw phenol and 30 pbw K2CO3 were stirred at 140 degrees C for 2.5 hrs. After cooling to 100 degrees C, 250 pbw isopropanol were added, and cooling to room temp., filtration, washing with warm water and drying at 100 degrees C gave 40 pbw yellow 1-phenoxyanthraquinone, m.pt. 126 degrees C.
Patent DE-2234000-A1 (DE)
Title: Electrochemical sepn of polyelectrolytes - using very small flat gels enable-ing micro samples to be analysed
IPC: G01N27/447
Filed: 1972-07-11
Abstract: The appts. for e.g., electrophoretic or isoelectrofocusing sepn. of polyelectrolytes, e.g., proteins or nucleic acids, in gels of natural or synthetic materials is constructed as prefabricated flat gels of very small dimensions in flat throwaway containers, capable of being stored. Pref. these micro flat gels are 0.5-1 mm. thick. Using this arrangement, it is possible in analyse very small samples, e.g., less than 10 microgrammes of protein.
Patent DE-2252928-A1 (DE)
Title: Automatic bobbin exchange for twisting machines - with horizontal move-ment by extraction arms and grippers
Inventor: TSUCHIYAMA YOSHIO
IPC: D01H9/10
Filed: 1972-10-27
Abstract: In the automatic removal of full bobbins, along the length of the spindles in a yarn twisting machine a container (55) is used for the wound bobbins (59e) running along the length of the frame (54). A reciprocating support unit (40), mounted on the frame (54), carried the extraction mechanism (29, 30, 36) with grippers (36) matching the number of spindles (73). A separate bobbin transport unit (48) runs along the length of the spindles, between the reciprocating support (40) and the container (55), with extra pivoted shafts (51) for the grippers (36).
Patent DE-2300655-A1 (DE)
Title: Plasticisers for cast explosive charges - consisting of non-volatile esters having low pour point and soluble in trinitrotulene
Inventor: LINGENS PAUL DR
IPC: C06B25/08
Filed: 1973-01-08
Abstract: Crack-free cast explosive charge for projectiles, having reduced segregation, contains TNT and is not >5 wt. % liq. plasticiser which is sol. in molten TNT and consists of cpds. which are non-volatile, have a pour pt. -10 (-30) degrees C and which dissolve (35 (25) wt.% TNT at 70 degrees C, pref. >=1 esters prepd. from 6-15 C mono- or polybasic aliphatic or aromatic acids and 7-14 C mono- or polyhydric esp. aliphatic alcohols. The charges opt. contain solid, brisant explosives, combustible materials, is not >0.3 wt.% high polymer thickeners sol. in molten TNT, surfactants and/or desensitisers and/or agents increasing TNT nuclei-formation, and/or inert finely divided solids.
Patent DE-2300874-A1 (DE)
Title: Fire-retardant timber treatment - by application of finely-divided deliquescent salts
Inventor: CHAMBERLAIN ERIC ALFRED CHARLE
IPC: B27K3/16
Filed: 1973-01-09
Abstract: The timber is exposed on all surfaces to fine particles of hygroscopic, deliquescent inorganic salts, pref. CaCl2. The salt pref. contains a solid wetting agent and may be coloured. Application may be by means of a fluidised bed, or by stacking the timber in layers, with alternating layers of salt applied by spraying. The salts deliquesce after application and penetrate as solns. into the wood, giving fire-retardant props., esp. improved resistance to surface spread of flames. The process is esp. applicable to timber used in coal mining.
Patent DE-2316162-A1 (DE)
Title: Plant growth regulators - contg. fluorene-9-carboxylic acid derivs and 1-(4-chlorophenyl)-1,2-dihydro-4,6-dimethyl-2-oxonicotinic acid salts
Inventor: SCHNEIDER GERHART DIPL BIOL
IPC: A01N43/40
Filed: 1973-03-31
Abstract: The fluorene derivs are of formula (I) (where R1 is H or OH; R2 is 1-4C alkyl or a cation; R3 and R4 are independently H or Cl); the wt. ratio between (I) and the oxonicotinates being 10:1 to 1:10. Pref. fluorene deriv. is methyl 2-chloro-9-hydroxyfluorene-9-carboxlate, and the prefd. oxonicotinate is the Na salt. The compsns. are esp. useful for controlling the growth of grasses in decorative lawns and golf courses, a good appearance is maintained, and mowing may not be required for a period of several weeks to several months. They are also useful for the control of rye grass. They are pref. applied at the rate of 0.5-6 (esp. 1-4) kg active ingredient/ha.
Patent DE-2325089-A1 (DE)
Title: (Chlorinated) trichloromethoxy benzoyl chlorides prepn - by free-radical catalysed chlorination of methoxy benzoates
Inventor: KLAUKE ERICH DR
IPC: C07C275/34
Filed: 1973-05-17
Abstract: Title cpds. of formula (I): (one of X1 and X2 = CCl3O other is H or Cl; X3 = H or Cl) are prepd. from cpds. of formula (II): (one of Y1 and Y2 = MeO, other is H or Cl, X3 = H or Cl) by chlorinating in presence of a diluent at 80-220 degrees C with simultaneous introduction of (II), gaseous Cl2 and a free radical catalyst into the diluent. Pref. catalyst is dibenzoyl peroxide or AZBN; solvent is preformed (I); temp. is 120-170 degrees C and (II) are the 3-MeO, 4-MeO or 3-Cl-4-MeO esters. (I) are intermediates for urea-type herbicides and are obtained in a single stage in high yield without ring chlorination.
Patent DE-2329706-A1 (DE)
Inventor: AESCHLIMANN JEAN-PHILIPPE
IPC: G04B17/32
Filed: 1973-06-12
Abstract: A method and device for fixing a watch-balance spring to its collet, comprising positioning a balance spring around a collet and pressing the coiled spring in radial direction against a part of the collet for uniformly engaging a part of the inner coil of the balance-spring against a surface of the collet, and, while radial pressure is still maintained, welding by laser the balance spring and collet together.
Patent DE-2331467-A1 (DE)
Title: Fixing of spreading fastener in concrete wall - prevents fastener from pulling loose by making accommodating hole with part frusto-conical section
Inventor: KESSLER JUERGEN
IPC: B23B51/00
Filed: 1973-06-20
Abstract: The fastener is fitted in a hole having two regions, the outer region being cylindrical and the inner region being conical and having an inner diameter which is at least partially greater than the diameter of the cylindrical region, the spreading of the casing of the fastener into contact with the wall of the hole taking place in the conical region. The diameter of the conical region increases with increasing depth of the hole, and the taper is produced by a cutting blade which can be extended from the side of a cylindrical tool used either to produce the hole or subsequently inserted.
Patent DE-2333267-A1 (DE)
Title: 1-(Dihydroxy-alkyl)-uracil derivs. prepn. - by borohydride reduction of 1-(2-oxo-tetrahydro-furyl)-uracils
Inventor: GILLER SOLOMON ARONOWITSCH
IPC: C07D239/54
Filed: 1973-06-29
Abstract: Derivs. of formula (I): (where R1 is H, halogen, CH3 or trihalomethyl and R2 is 1-hydroxymethyl-3-hydr oxypropyl, 1-hydroxymethyl-3-hydroxybutyl or 2,5-dihydroxypentyl) by reducing cpds. (II) of formula (I) (where R2 is 2-oxo-tetrahydro-3-furyl, 5-methyl-2-oxo-tetrahydro-3-furyl or 2-oxo-tetrahydro-5-furylmethyl) with alkali metal borohydride in aq. or aq.-alcoholic soln. at 15-50 degrees C. (I) are of interest as potential in ibitors of nucleic acid metabolism and can also be used as inters. for analogues of mono- and oligo-nucleotides and nucleic acids.
Patent DE-2346376-A1 (DE)
Title: Oil-fired radiant heating stove - has sheet metal backflow receiver projecting partly into flue gas shaft
Inventor: VELIE WALLACE WRIGHT
IPC: F23C9/00
Filed: 1973-09-14
Abstract: Oil-fired radiant heating stove has a flue gas shaft fast to the fuel container, and a backflow receiver consists of a cylindrical main part which is laterally introduced into the flue gas shaft and projects in beyond the shaft's midline, and which is closed by a cap at the end inside the shaft and has a receiver opening near the end cap, of cross section a tenth of the shaft's total cross section; with the total effective cross section of the backflow receiver lying within the shaft corresponding to the opening cross section of the receiving opening; and a backflow pipe connected on one side to the cylindrical main part and on the other to the fuel container. Preferably the backflow receiver is of thin-walled sheet steel. Combustion of the fuel is extraordinarily clean and a high heat delivery is ensured.
Patent DE-2347494-A1 (DE)
Title: Bullet-proof communication aperture for counters - incorporates horizontal speaking slot covered by bullet-proof shutter
Inventor: KLEINAU WERNER
IPC: E05G7/00
Filed: 1973-09-21
Abstract: The counter has transparent bullet-proof walls, and a speaking slot. The slot has a cover of similar material, positioned at a distance, and parallel to the wall. A rail is fastened at right angles to the cover, and projects into the speaking slot. The slot, the cover, and the rails extend horizontally, and the rail is positioned at a distance of 1.0-1.4m from the floor, preferably 1.3m. The covering shutter for the slot may be arranged on the wall inside, and the rail may reach up to the plane of the wall outer side.
Patent DE-2348107-A1 (DE)
Title: Electric clock with stand-by battery - has motor with multi-pole permanent magnet rotor and stator with several field windings
IPC: G04C15/00
Filed: 1973-09-25
Abstract: The stator field windings can be supplied from the network frequency, or from a battery via an electronic drive circuit. The stator has at least two air-cooled windings spaced by a given angle, e.g. 90 deg., about the rotor axis, and each winding being connected to an electronic oscillator circuit for running-up of the motor. An electronic control circuit is connected between the two oscillator circuits which, above a chosen rotation, disconnects at least one of the oscillator circuits (A1A2) from its respective winding, this winding then being supplied with a synchronising signal e.g. at the network frequency. Pref. the battery (2) output voltage is stabilised by a regulating circuit (ST) preceding the oscillator circuits (A1A2).
Patent DE-2363689-A1 (DE)
Title: Artificial knee-joint with braking action - has rocker shaft in upper part and joint axle in lower part
Inventor: GLABISZEWSKI RICHARD
IPC: A61F2/50
Filed: 1973-12-21
Abstract: Artificial knee-joint has a brake controlled by loading of the prosthesis carrier, with one coupling part formed by the joint axle forming a brake drum, and the other comprising the slotted axle-surrounding shell, with one shank jointed to a rocker shaft of one joint part and the other shank as controlled clamping lever. The rocker shaft is mounted in a housing which can be pushed into a corresp. recess of an upper part of the prosthesis. The joint axle projects on both sides through apertures in the housing sidewalls, pref. bores, of dia. larger than that of the joint axle, both of whose end faces have fasteners for rotationally fast connection to conventional fibula rail connected to the lower part of the prosthesis. The rocker shaft and joint axle lie on a horizontal plane, and an adjuster in the housing is adjustable from outside and changes the rocking path of the joint axle. Mfr., mounting and function are improved.
Patent DE-2365385-A1 (DE)
Title: Twisting yarn by withdrawing axially from a package - surrounded by a casing in which the yarn forms balloon at the opens mouth of which the air turbulence is gradually reduced
IPC: D01H1/00
Filed: 1973-02-28
Abstract: Yarn is withdrawn axially from a package and passed through a lappet in axial alignment with and arranged above a package whereby the yarn forms a balloon between the package and the lappet, and the package is surrounded by a casing which is rotatable with the package. The mouth of the casing adjacent to the lappet is completely open so that the turbulence of the air through which the yarn passes in moving to the lappet is gradually reduced. The yarn is not suddenly subjected to a change from air rotating with the package in the casint to air which is stationary adjacent to the lappet, thereby reducing damage to the yarn. Pref. the length of the casing is greater than that of the package, and an extension piece is provided to adjust the length of the casing. The casing may be surrounded by a stationary outer housing, and disc having a slightly smaller diameter than the inner dia. of the casing may be provided on the top of the package spindle.
Patent DE-2401809-A1 (DE)
Title: Cattle-food ingredient dryer - has oven in predrying conditioner and main dryer above dew point of moisture in material
Inventor: BISHOP RALPH WILLIAM
IPC: F26B3/00
Filed: 1974-01-15
Abstract: Dewaterer for sugar-cane, citrus fruits, sorghum, maize or sugar beets containing liquids for mfr. of sugar-contg. cattle food, has a pre-drying conditioner using a hot gas stream and connected to a main dryer, using hot gases to give a preset moisture content. An oven is connected to the conditioner and main dryer and keeps the temp. in them above the dew point of the moisture in the material. The amount of heat fed in is controlled independence on the desired final moisture content of the material. The oven has a conditioning oven connected to the conditioner and a main oven connected to both conditioner and main dryer and can take a gas stream emerging from the conditioner and super heat it for delivery to the main dryer.
Patent DE-2403023-A1 (DE)
Title: Density measuring device for fluids - uses radioactive radiation and consists of test section between radiator and receiver
Inventor: MENGELKAMP BERNHARD
IPC: G01N23/12
Filed: 1974-01-23
Abstract: The walls of the test section are made of foil which bulges inwards and the foil is supported at its edges by a plate with a round hole into which the bulged areas of the foil are placed. The edges of the foil which lie on the plate are sealed by corresponding rings; There are inlet and outlet channels for the fluid and possibly several venting channels for the fluid drilled in the thickness of the plate. The thin section between the two foils is filled with the fluid under test, so that the shape of the test thickness of the fluid is like a biconcave lens.
Patent DE-2405363-A1 (DE)
Title: Mould system for lightweight concrete panels - vertical mould closed by pressure plate, swung down for discharge
Inventor: PFEIFFER HORST-JOACHIM
IPC: B28B7/08
Filed: 1974-02-05
Abstract: An installation for casting sandwich panels of lightweight concrete with a plaster facing, has a mould system with a main support surface inclined backwards at an angle between 10 and 20 deg. to the vertical onto which is swung an open sided rectangular mould frame and against which is then swung a closure plate to form a complete mould into which the mixture is poured from above, and in this position, the mixture is vibrated and compacted before the whole mould system is swung over and downwards to a horizontal position for discharge of the mould onto a horizontal roller conveyor. The closure plate is held against the mould frame by a pressure arm with a set of parallelogram linkage arms operated by piston and cylinder devices.
Patent DE-2410707-A1 (DE)
Title: Rail vehicle disc brake lining wear indicator - has lining with air passage vented by predetermined amount of wear
Inventor: WOSEGIEN BERND DIPL ING
IPC: F16D66/02
Filed: 1974-03-06
Abstract: Disc brake arrangement is especially for passenger transporting vehicle and comprises disc brake linings or pads each mounted on a base which enables it to be pressed against brake disc. The brake lining includes a radially extending air passage which is spaced from the rear of the lining and base by an amt. equal to the minimum allowable thickness for the brake lining. Once war on the lining reaches the minimum thickness an air pressure connection to the passage is vented and this generates a signal which is transmitted to a warning device adjacent the entrances to the vehicle.
Patent DE-2413356-A1 (DE)
Title: Oil filler for hub reduction gear - is positioned centrally in hub to set oil level irrespective of wheel setting
Inventor: HOPF WILHELM
IPC: B60K17/04
Filed: 1974-03-20
Abstract: The multi-axled vehicle has reduction gearings in each drive hub, coupled to rigid, or semi-rigid half shafts. The reduction gears are positioned in an oil bath which can make maintenance difficult as each bath has to be checked. The invention provides an improved filler hole for each hub with the filler hole mounted centrally in the hub and with the diameter of the filler hole such that the lower lip forms the max. oil level irrespective which part of the wheel is uppermost. The hubs are drained by a second plug at the extreme end of the bath, and for this the hubs do have to be rotated into position.
Patent DE-2421725-A1 (DE)
Title: Pneumatic conveyor elastic hose - has end inverted over flanged ring where coupled to next section
Inventor: JORDAN WALTER
IPC: B65G53/54
Filed: 1974-05-04
Abstract: The hose for conveyors handling powder tending to cake, is constructed from two or more sections which are coupled together by union pieces each having a rigid ring (3) fitting round the hose (1) at a distance from its end, and this end (5) is inverted round the ring. The latter also has a flange (8) for coupling to the corresponding union piece on the next hose section. A bead (4) can be formed on the ring where the hose end is inverted over it, and the end can be secured to the ring by a clamping strip (7). A further clamping strip (11) can be fitted round the two hose ends where they butt together.
Patent DE-2427725-A1 (DE)
Title: Angle measuring device with voltage regulator - designed so that no extra cooling element is necessary
Inventor: KREILING HELMUT
IPC: G01D5/347
Filed: 1974-06-08
Abstract: An inner housing (1) contains a voltage regulator (2) and a lamp (3). The housing is coupled by a flange (4) to the angle measuring device (5) to ensure good heat conduction, whereby the contact surfaces of the flange are as large as possible so that the maximum amount of heat can be dissipated. The inner housing is pref. a casting, and the flange pref. has a projecting shoulder (6). A clamping ring is pref. used to secure the angle measuring device. The heat from the voltage regulator and the lamp is dissipated through the flange, and a more compact design is possible.
Patent DE-2432306-A1 (DE)
Title: Pressure monitor for pantograph - with integral strain and transmitter-receiver system for servo operation
Inventor: KLUZOWSKI BURCKHARDT DIPL ING
IPC: B60L5/18
Filed: 1974-07-03
Abstract: The carbon strip on the top of the pantograph is mounted on a metal strip support which incorporates a strain gauge. The strain gauge is part of a transistorised circuit fitted to the pantograph, complete with integral battery. The circuit is floated at the pantograph potential and is fitted with an optic transmitter. This used an LED to transmit a signal frequency to an earthed receiver, beside the pantograph, with the frequency proportional to the pressure. The receiver controls a servo mechanism to alter the pantograph pressure. The system enables the pantograph pressure to be controlled w.r.t. speed and wind conditions etc.
Patent DE-2436515-A1 (DE)
Title: Prefabricated concrete ceiling or roof support element - embedded in beam of styropor concrete or other light material
Inventor: RATH KARL FRIEDRICH
IPC: E04B5/06
Filed: 1974-07-29
Abstract: This is for support under hollow tile, concrete or light-material units used in roofing or ceiling construction, with the tension zone at least in a reinforced-concrete bearer in the lightweight beam-shaped unit. The side surfaces of the latter, in which this is bedded, are pref. profiled to fit their counterparts in adjacent side surfaces; profiling may consist of tongues and grooves, or saw-toothed longitudinal ribbing. The bottom may also be profiled, and may have an insulating or plastering coating. A smooth heat-insulating underside car be provided for ceiling and roof structure, with no extra supports, and lightweight beams can be wide, with installation rapidly completed.
Patent DE-2453236-A1 (DE)
Title: Easily released connector for detachable handle on vacuum cleaner - has screw cap with bolts forming pressure stop and preventing undue rotation
Inventor: STETTNER GERHARD ING GRAD
IPC: A47L9/32
Filed: 1974-11-09
Abstract: The screw cap (2) has an annular shoulder (8) which for engagement abuts a pressure stop (13) which is provided on the handle (4) axially spaced from the free end (7). The pressure stop consists of two diametrically opposite bolts (13) mounted radial to the handle (4) the free end of which is designed to slide in the support (5) mounted on the machine casing and is provided with the counter-thread for the screw cap nut (2). The end edge (10) of the support (5) is provided with grooves (11) which extend in the axial direction and are adapted for engagement by the bolts (13). These bolts (13) can be formed by the free ends of a pin which penetrates through the guide handle (4) to form the pressure stop for the nut (2). By engaging in the grooves on the support it also acts as the lock against rotation.
Patent DE-2458130-A1 (DE)
Title: Radio receiver with selective call evaluation - signal shaper stage for selective call signal to be evaluated
Inventor: WOLFF WERNER DIPL ING
IPC: H04W88/02
Filed: 1974-12-09
Abstract: A radio receiver has further a highly stable pulse generator and a counter followed by an evaluation circuit. The counter input is connected during gating periods derived from the selective call to be evaluated, to the pulse generator, and its reading has a certain bandwidth for each counting result. The evaluation device consists of a bistable circuit whose setting input is connected to the counter output marking the bandwidth lower limit, and its ressetting input to the counter output marking th upper bandwidth limit. Its output signal is the criterion for the call correctly recognised in a gating period as in 2420507. The bistable circuit (7) is followed by a digital counter (23) which adds the output signals of the bistable circuit delivered during individual gating periods, and delivers a control signal when a certain sum is reached.
Patent DE-2459500-A1 (DE)
Title: Monolithic kerb stone with tubular duct - comprises resinous concrete with up to ten percent resin content
Inventor: KOBLISCHEK PETER
IPC: E01F9/541
Filed: 1974-12-17
Abstract: A monolithic, parallel pipe-shaped kerbstone for (secondary) roads has a tubular, longitudinally extending duct. Its height is >1.5 times its width. It consists of a synth. resinous concrete whose resin portion is up to 10%. Kerbstone is inexpensive to mfdr. and easy to lay. The construction is an advantageous compromise between low wt. of the prod. and its adequate mech. strength.
Patent DE-2500815-A1 (DE)
Title: Coin operated door locking mechanism for changing rooms etc. - coin raises locking lever as door handle is rotated
Inventor: SCHLECHT GUSTAV
IPC: G07F17/14
Filed: 1975-01-10
Abstract: A coin operated locking mechanism is intended for use in swimming bath changing cabins, toilets etc. The mechanism consists of a disc mounted behind the front plate of the door. The disc has two diametrically opposed grooves; one for holding a coin and one that has an interlocking profiled disc for preventing insertion of a coin when the room is in use. When a coin is located in the top slot the disc may be rotated until the locking lever is contacted. Unless the coin is present any attempt to rotate the disc is prevented by a dog that locates in a recess. The coin moves the dog clear of the recess and the disc can rotate through 180 deg.