baber/WOPTO huggingface dataset:
Patent DE-2021872-A1 (DE)
Title: Chelidonic and chelidamic acid - from diethyl xanthochelidonate - by thermal decomposition and autoclaving with ammonia
Inventor: KOWITZ WERNER
IPC: C07D309/38
Filed: 1970-05-05
Abstract: Chelidonic and chelidamic acid are prepd. in a continuous operation by decomposing diethyl xantho-chelidonate at 80-120 degrees, treating with HCl and ice-water and converting the chelidonic to chelidamic acid with conc. ammonia in an autoclave. This ensures higher yields and products of more standard quality than hitherto.
Patent DE-2026954-A1 (DE)
Title: Storage pocket - for microfilm of unplasticised pvc
IPC: G03B21/64
Filed: 1970-05-26
Abstract: Storage pocket is of pref. plasticiser-free PVC and has individual pockets between clear leaves, whose edges are joined, leaving insertion slits, by welding along the outer edges and the edges of the pockets. Pref. the leaves are of unequal thickness; the thicker one having the slit.
Patent DE-2033462-A1 (DE)
Title: Concrete contng synthetic glue - reversibly convertible from soft to hard state
IPC: C04B24/26
Filed: 1970-07-07
Abstract: Concrete consisting of a chemical glue (e.g. UHU glue RTM) and solid additives (fillers, or other binders such as cement or gypsum) can be repeatedly converted from the solid state after hardening to the soft state by means of a solvent for the glue (e.g. ordinary spirit). This property may be of great advantage in many applications, such as building (joints, fillings, packings, insulations), electrical and mechanical techniques, etc.
Patent DE-2054666-A1 (DE)
Title: Retort furnace - with counter-balancing weight
IPC: C21D1/74
Filed: 1970-11-06
Abstract: A counter-balancing weight is attached to the top part of a furnace retort to take a fixed part of the retort weight, leaving the remaining weight of the retort, plus a charge, to be taken by the base of the furnace. The counter-balancing weight may be an actual weight, or a spring, or a hydraulic cylinder. Damaging thermal stresses in the retort are largely eliminated.
Patent DE-2128246-A1 (DE)
Title: Forming passivated semiconductor elements - on semiconductor wafer having one type conductivity to produce mesadiodes
Inventor: LOSEHAND REINHARD DIPL PHYS
IPC: H01L23/29
Filed: 1971-06-07
Abstract: Mesadiodes having an even p, n-junction or a Schottky junction are produced by applying a patterned masking layer onto a semiconductor wafer having one type conductivity; etching the uncovered parts of the surface; removing passivating the uncovered parts of the surface; removing at least a part of the masking layer; and carrying out further operations, such as diffusion, in the conventional manner. Very small diodes can be formed (dia. 0.1 mu). The method is suitable for mfr. of silicon multi diode targets for TV transmission tubes.
Patent DE-2145842-A1 (DE)
Title: Oxidn of ammonia to nitrogen oxides - on a palladium contg catalyst for nitric acid prodn
Inventor: ROTERS HANS DR
IPC: B01J23/40
Filed: 1971-09-14
Abstract: mixture are oxidised by passage through a bed of fine-mesh grids made of an alloy ctg. 40-75% (55-70%) Pd, 1-8% (1-6%) Rh and/or Ru, balance Pt. This catalyst bed consists of several grids placed over each other, each grid having 1024 mesh/cm3 of dia. 0.10-0.15 mm. Pref. the system is Pd richer on the gas outlet side cp. to the inlet side; one or more grids can be constructed of existing Pt-10% Rh alloy for the latter positions. Pref. conditions are 750-950 degrees C and 7 atmos. pressure. The bed is cheaper to produce and run since the noble metal wt. loss is reduced without reduction of conversion efficiency.
Patent DE-2215870-A1 (DE)
Title: Recovering brass from skimmings - using a flux cover to which is added an elemental reductant
Inventor: BARBOUR ALFRED R
IPC: C22B7/04
Filed: 1972-03-30
Abstract: Skimmings contg. metallic brass (e.g. from a brass melting furnace) are heated to slightly above the melting point of the metallic content in the presence of a flux agent contg. B oxide (e.g. formed from Rasorite concentrates) and Na2CO3 which gives a slag blanket to which is added at least one of Ca, al, Si, Mn and Ti which reduces oxides in the slag and thus lower the viscosity thereof whereby the amount of brass which coalesces into droplets which settle from the slag. is increased.
Patent DE-2229809-A1 (DE)
Title: Cocurrent flow centrifuge - with filtrate discharge holes in coaxial worm carrier drum
Inventor: HECKMANN WOLFGANG
IPC: B04B1/20
Filed: 1972-06-19
Abstract: A cocurrent-flow centrifuge with a centrifugal drum has a solids discharge worm which rotates coaxially with it in the same direction but faster. Both the outer centrifugal drum with a solid wall and the inner worm-carrier drum with holes downstream of a partition for the feed chamber consist of a cylindrical part followed by a conical part.
Patent DE-2245082-A1 (DE)
Title: Mixing plastics constituents with entrained air - esp for polyurethane with air atomised into low pressure region of constituent feed lines
Inventor: CLAUSEN HELMUT
IPC: B29B7/76
Filed: 1972-09-14
Abstract: A method of mixing multi-constituent plastics, esp. polyurethane, utilises a mixing chamber to which the constituents are fed through separate lines from the constituent reservoirs; air to promote mixing is introduced, through atomising nozzles comprising non-return valves, into either the feed lines or recycling lines if provided. The point of introduction is pref. just downstream of a pressure reducer. This method ensures uniform, non-segregating mixing.
Patent DE-2247501-A1 (DE)
Title: Quaternary ammonium halides prepn - from sec amines
Inventor: WITEK STANISLAW DR
IPC: C07D295/023
Filed: 1972-09-28
Abstract: Quaternary ammonium salts of formula (I) (where R1 and R2 are alkyl, aralkyl or cycloalkyl, or NR1R2 is a heterocyclic ring (e.g. morpholine or piperidine), R is alkyl, alkenyl, cycloalkyl or cycloalkenyl opt. subst. by an OH gp., and X is halogen), which have biological effects on plants, are prepd. by reacting an alkyl halide with a sec. amine in the presence of a hydrogen halide binding agent (e.g. a hydroxide, a mild alkali, or an alkaline earth carbonate) in an amount of >=1 equiv. per mol. of amine in an org. solvent (e.g. an aliphatic alcohol) at 0-100 degrees C at normal pressure or at an elevated pressure of 1-10 atm. depending on the props. of the starting materials. By using a sec. amine as starting material, byproducts are reduced to a minimum, yields are increased (60-95% yields are obtained), and (I) are obtained in practically pure form.
Patent DE-2304314-A1 (DE)
Title: Plastics slide fastener - with end stops formed by thermowelding coil members
IPC: A44B19/36
Filed: 1973-01-30
Abstract: Plastics slide fastener capable of withstanding all dynamic stresses to which it is subjected in use and having interlocking members formed from coils with oppositely facing spherical nodules has the front and end stops which cooperate with the slide formed by welding a number of coils thermally along the range including the nodules.
Patent DE-2320793-A1 (DE)
Title: Circular knitting machine pattern selecting drum - inexpensive assembly made up from segments and perforate plate supported by the segments
Inventor: LOTZE HERBERT
IPC: D04B15/74
Filed: 1973-04-25
Abstract: Device includes a cylindrical support member which is split axially and provided with diametrally opposite axially extending slots one of which serves for clamping the ends of a perforated pattern plate and the other serves for tensioning the plate trained about the support member.
Patent DE-2334008-A1 (DE)
Title: Explosive blind rivetting connector - has pin of a blind rivet is fixed to a piston forming rivet head
Inventor: RITZ PETER
IPC: F16B19/12
Filed: 1973-07-04
Abstract: The blind rivetting connector uses pyrotechnic energy where the pin of a conventional blind rivetting element is fixed with a piston which can move axially under gas pressure in an enclosing device and forms the rivet head. The piston in the housing has retardation and an expansion chamber is formed between piston and a cover for a charge. The mass of the movable part, which is connected to the piston, is less than the parts fixed to the housing. An annular initial ignition device is arranged between the cover and change.
Patent DE-2334942-A1 (DE)
Title: Disc brake lining thickness indicator - uses thin ceramic fingers to increase resistance of electrical circuit as brakes wear
Inventor: KOEPERNIK VIKTOR
IPC: F16D66/02
Filed: 1973-07-10
Abstract: The carrier for one brake pad is provided with four small fingers of different lengths and the gap between the longest finger and the opposing carrier plate is approximately equal to the thickness of one brake pad. The fingers are made of a brittle ceramic material and enclose a loop of wire connected to small resistors arranged in parallel. As the brake pads wear the longest finger makes contact with the opposing pad and is broken off together with its wire so that its resistor is removed from the circuit. The remaining resistances are cut out as further wear occurs reducing the circuit current which indicates the degree of pad wear.
Patent DE-2338763-A1 (DE)
Title: Pipe parting tool - round head has side and radial cutting edges
Inventor: MUELLER HARALD
IPC: B23D45/12
Filed: 1973-07-27
Abstract: The machine is partic. for cutting pipes, which are subjected to a continual action by an impact tool in the radial direction, and prepares the cut edges for welding etc. at the same time. In addition to the radial cutting edges of the tool, offset edges are provided at the side. These can be divided into short individual edges, offset in relation to each other.
Patent DE-2338829-A1 (DE)
Title: Double cavity microwave resonator - has central rod electrode and side electrodes adjustable by screws
Inventor: SPINNER GEORG DR-ING
IPC: H01J23/207
Filed: 1973-07-31
Abstract: A double cavity resonator is suitable for transmission Klystrons and may be built with the centre of the cavity occupied by a rod, which is in fact the output electrode. At each side of this rod there is a cavity wall, which may be moved under the control of external screws, either nearer to or further from the rod. Each wall operates independently of the other. Thus the cavity space, and therefore resonant frequency may be controlled. The cavity space is made from an insulating material such as ceramic, or quartz.
Patent DE-2340115-A1 (DE)
Title: Central heating system operation - with heat returned to medium near each radiator corresponding to heat delivered by it
Inventor: HERRIG WILLI
IPC: F24D3/02
Filed: 1973-08-08
Abstract: Central heating system is operated with spaced-apart radiators connected in parallel to a closed circulation. The heat to be given off by a radiator is returned to the medium in the region of that radiator. Pref. the heat output of each radiator is measured and the corresponding heat at any given time is returned to the medium in the region of the radiators feed or return duct. The heat delivery is determined by measuring the temp. of the medium. The amount of heat fed in is controlled in relation to the room and/or ambient temp. Fine individual regulation is combined with min. energy cost.
Patent DE-2348750-A1 (DE)
Title: Reinforced polyamide moulding materials - derived from mixed diamines including xylylene diamines and bis-(4-aminocyclo-hexyl)alkanes
Inventor: BRINKMANN LUDWIG DIPL CHEM DR
IPC: C08K7/14
Filed: 1973-09-28
Abstract: Polyamide moulding matl. contg. (A) 2-80 (10-40) wt. % inorganic fibres and (B) 98-20(90-60) wt. % amorphous polyamide derived from (a1) 5-50(10-35) mol. % 1,3- and/or 1,4-bis(aminomethyl)cyclohexane, 2,5- and/or 2,6-bis(aminomethyl)bicyclo 2,2,1 -heptane, (alpha2) 0-45 (0-35) mol. % at least one 4-20 (6-12)C aliphatic diamine with amino gps. sepd. by at least 4 (6)C atoms, (beta1)5-50(10-35) mol. % 7-20-(8-14)C aromatic dicarboxylic acid with COOH gps. in m-or p-posn., (beta2) 0-45(0-35) satd. 6-20 (6-12)C aliphatic dicarboxylic acid with COOH gps. sepd. by at least 4 C atoms, and (gamma) 0-80(0-50) mol. % aliphatic 2-20(6-12)C aminocarboxylic acid, esp. omega-aminocarboxylic acids. Mol. % total of (alpha1) and (alpha2) is the same as that of (beta1) and (beta2). Total of (alpha1) and (beta1) is 20-95(50-90)mol. %. Total of (alpha2), (beta2) and (gamma) is 5-80(10-50) mol. %. In the patent of addn. (alpha1) may also consist of m-xylylene diamine opt. with up to 50(30)-mol. % replaced by p-xylylene diamine and/or one or more bis(4-aminocyclohexyl) derivs. of 1-6(1-3)C alkanes. The matls. have excellent props., esp. high E-modulus, which falls off less on heating than known reinforced polyamides based on polyamide 6 or 66.
Patent DE-2349511-A1 (DE)
Title: Repair frame for car - bolted to wheel hubs to roll car through right angle for easy access to underside
Inventor: KOLINSKY OTTO
IPC: B66F7/22
Filed: 1973-10-02
Abstract: The car is supported on jacks on one side and the wheels of one side are removed. A special frame is bolted to the wheel stubs and comprises a system of telescopic tubes which form a cradle to support the side of the car on the ground. The tubes reach under the car and up along one side. The jacks are lowered and the vehicle is then tipped onto its side for easy access to the underside. The whole tipping operation required only two operators and does not damage the vehicle, providing the fuel tank is drained and the battery removed. The two sections of the cradle are set at about 90 deg. to each other and have an adjustable handgrip for simple operation. The frame folds together for storage.
Patent DE-2349940-A1 (DE)
Title: Burn treating medicine atomiser - formed by an injection syringe whose needle coee supports a spray nozzle assembly
Inventor: DRZEZGA WOLFGANG DR
IPC: B05B11/02
Filed: 1973-10-04
Abstract: Medicine atomiser formed by a known syringe whose needle supporting cone supports a spray nozzle assembly is used for the external application of medicine to wounds caused by burns.
Patent DE-2350722-A1 (DE)
Title: Elastomer seals for earthenware pipe - coupling sleeve for large dia. pipes uses O-ring seal with profiled cross section for high reliability
Inventor: BAUR FRITZ
IPC: F16L21/025
Filed: 1973-10-10
Abstract: The coupling of earthenware pipes of 100-200 mm. diameter is achieved using a sleeve with inserted sealing rings at either end. The elastomer ring is produced with a profiled cross-section which is essentially circular with projections on inner and outer diameters. When the ring is inserted in the coupling sleeve the flexible support deforms and grips the inner surface of the sleeve. Insertion of pipe into either end is facilitated by a roller profile on the sealing ring inner diameter. As the pipe enters further into the sleeve an inclined surface on the ring is compressed to form a tight seal.
Patent DE-2358194-A1 (DE)
Title: Electrically driven vehicle battery charging appts. - uses parking meter to control supply with preset timing device
Inventor: SCHAEFER MANFRED
IPC: G07F17/00
Filed: 1973-11-22
Abstract: The parking meter is provided with a connecting lead with a terminal plug which can be inserted into a battery connector on the vehicle. The selected time interval for charging is indicated on the meter scale and the operation is initiated with the insertion of coin into slot. The supply of electric power from charger is ensured by the up-lead line in the pedestal. Return coins are controlled by the actuation of a knob and they are discharged through slot. The design ensures that the radius of operation of battery driven vehicles is extended due to charging at the parking spots.
Patent DE-2359681-A1 (DE)
Title: Renovation of ingot moulds in steelworks - using portable fixture carrying a band saw to cut new base on mould
Inventor: ELSTER TILMAN HERFORD
IPC: B22D7/06
Filed: 1973-11-30
Abstract: This device is for repairing the bottom ends of mould walls which become damaged after repeated use, and to carry out the repair the mould is inverted so the bottom surface is uppermost. A hollow pillar is then located axially in the mould using two sets of clamps which expand radially and a band-saw is used to cut an entirely new joint-face near the damaged surface. The band saw consits of an endless belt driven by a motor and mounted on a shaft which fits in the hollow pillar. By rotating the shaft the band saw can operate over the entire cross-section of the mould. The process results in a small redn. in the length of the mould. The process is not so expensive as repairs by welding, or the use of a large milling machine. The device is portable and can be used anywhere in the steelworks.
Patent DE-2401963-A1 (DE)
Title: Linear to rotary movement converter for stirling engine drive - has gearwheels on two parallel shafts interconnected by toothed belt
Inventor: ORGAN ALLAN JOHN
IPC: F16H7/02
Filed: 1974-01-16
Abstract: Device for conversion of stroke movement into rotary movement, which comprises a rhombic drive, in which at least one part moving backwards and forwards is connected to two parallel rotating shafts. A gearwheel is fitted on each shaft and on endless, flexible smooth belt with inner and outer surfaces, one of which is fited with teeth. The belt passes around the gearwheels and thus connects them together. The belt can have teeth only on one surface or on both, and in the latter eent, the teeth on the inner belt surface engage in sequence with a gearwheel, whilst those on the outer surface engage with the other gearwheel. Here, the belt runs also round an idler wheel arranged to keep the teeth on the outer belt surface in engagement with the appropriate gearwheel.
Patent DE-2406323-A1 (DE)
Title: Continuous hydroformylation of olefinic cpds - using recycled rhodium-contg product-distn residue as catalyst in presence of water
Inventor: TUMMES HANS DIPL CHEM DR
IPC: C07C45/50
Filed: 1974-02-09
Abstract: The continuous prodn. of O-contg. cpds. is carried out by (a) reacting a 2-20C olefinic cpd. with CO and H2 at 50-200 degrees C and 50-1000 atm. in the presence of 1-30 (pref. 3-26) wt.% H2O (based on the olefinic cpd.), initially using a soln. of a Rh cpd. in a non-polar solvent as catalyst; (b) separating unreacted starting material and reaction product from the reaction mixt. by fractional distn.; and (c) recycling the distn. residue, contg. dissolved Rh cpds. and a small amt. of suspended Rh, as catalyst for further reaction, opt. after replacing Rh losses with the corresp. amt. of fresh catalyst soln. By carrying out the reaction in the presence of H2O, the deactivation of the Rh catalyst during distn. is counteracted; although H2O reduces the reaction rate in the 1st run (with fresh catalyst), it greatly increases the rate when the recycled distn. residue is used.
Patent DE-2410813-A1 (DE)
Title: Elastic element for engine mounting - consists of hollow elastomer part mounted between an inner and outer sleeve
Inventor: HEILAND HANS DIPL ING
IPC: B60K5/12
Filed: 1974-03-07
Abstract: The elastic or shock absorbing element consists of an inner sleeve and an outer ring between which an elastomer hollow body is bonded. The hollow section in the elastomer body is divided into an upper and lower part either by means of a rim on the inner sleeve or a partition which is integral with the elastomer body. There is a small clearance between the rim on the inner sleeve or alternatively there are hole in the partition which divides the upper and lower hollow spaces. The hollow spaces in the elastomer body is filled with hydraulic fluid. When the elastomer body is compressed, hydraulic fluid from one section can flow via the narrow gap or through the holes in the partition, to the other section. The restricted flow area will act as a choke and increase the damping effect.
Patent DE-2411121-A1 (DE)
Title: Smoked spices with attractive colour, and intense flavour - obtd. by agitating in atmosphere generated by superheated steam on sawdust
Inventor: MARCUS FRIEDRICH-KARL DIPL CHE
IPC: A23L27/27
Filed: 1974-03-08
Abstract: Smoked spices and fillings for flavouring pickles, etc., are produced by bringing the raw material, - spices, powdered meats, etc., into intimate contact with smoke, in a vessel in which they are thoroughly agitated. The vessel may be either a rotating drum, or a stationary cylinder in which a rotary agitator sets the particles of raw material whirling around in the smoke, which is created by the action of steam superheated to 350 degrees C on sawdust, and is passed through a fabric filter to remove floating matter, before it enters the treatment vessel. The spices are smoked uniformly throughout, and retain their free-flowing characteristics.
Patent DE-2418960-A1 (DE)
Title: Ornamental hollowed-out display lamp with inside scene - is made from genuine or artificial candle with light at top
Inventor: OLLOM LOREN R
IPC: A47G33/00
Filed: 1974-04-19
Abstract: The ornamental decoration which can be designed in the form of a hanging lamp comprises a horizontal base and upright supports protruding from the base and supporting a transparent roof. Nativity figures or other non-seasonal objects can be placed inside this display and for better effect be illuminated by a light source provided on the roof. The base, supports and roof can be designed to appear like a hollowed-out candle coated on the outside with genuine or artificial wax and indeed a genuine candle can be hollowed out and supplied with the figures. The light can be provided by a relatively short candle or an electric light bulb which can be of any colour.
Patent DE-2427287-A1 (DE)
Title: Sliding window travelling on rollers - track for rollers has sloping surface to match double conical rollers
Inventor: DIEHM WALTER
IPC: E05D15/06
Filed: 1974-06-06
Abstract: The sliding window with a hollow moulded frame for each window, which interfits with a hollow moulded fixed frame, has skirts hanging down from the window frames, so as to conceal rollers (12) between them, to run on a vertical hollow rib (13) of the fixed frame underneath. This rib has a sloping surface (14, 15) to match and locate the rollers, which are of plastics material and in the shape of two conical portions (12', 12"). Alternatively, these conical portions could slope the other way, i.e. the large diameter is the common diameter with the smaller diameter at the outside. Alternately the rollers are attached to the fixed frame and a ridge inside the moving frame matches them.
Patent DE-2429878-A1 (DE)
Title: Bicycle pump with cylindrical piston body - has circumferential groove communicating with compression chamber and containing resilient seal
Inventor: ORAK SAMUIL A
IPC: F04B53/12
Filed: 1974-06-21
Abstract: The pump comprises a piston (2) sealingly contained in a housing (1) and fixed to a piston rod (4) extending outside the housing. The cylindrical piston body is provided with a circumferential groove (6) which communicates with the compression chamber via one or more ducts (7). The seal between piston and housing is effected by a resilient sealing element (3) contained in, and freely movable in, this groove. The sealing element may be a length of resilient cord. The groove may be of helical shape with the sealing cord length exceeding 1.5 times the circumference of the piston and its cross-section being rectangular.
Patent DE-2434901-A1 (DE)
Title: Determination of chloromethyl methyl ether in air - by reacting with alkali metal alcoholate, chromatographing, detecting and visualising
Inventor: AULT ELDON FRANK
IPC: G01N31/00
Filed: 1974-07-19
Abstract: Chloromethyl methyl ether is detd. in air in concentrations of ppm by reacting it with an alkali metal salt of a 1-4C alcohol, phenol or a chlorophenol contg. 1-5 Cl atoms. The reaction product is passed through a chromatography column in the gas phase and subsequently eluted and detected. Pref. alkali metal salts are sodium phenoxide sodium ethoxide and sodium salts of chlorophenols with 1-5 Cl atoms.