baber/WOPTO huggingface dataset:
Patent DE-2208006-A1 (DE)
Title: Modified epoxide resin prepn - from hydroxyl gp - contg alkyd resins, urea and polyepoxides
Inventor: KRUEGER ALFRED
IPC: C08L63/00
Filed: 1972-02-21
Abstract: Modified epoxide resins are prepd., by reacting OH gp.-contg. alkyd resins (I), urea (II) and epoxide cpds. contg. >1 epoxide gp. for each ave. mol. wt., (III), pref. by first reacting (I) with (II), followed by reaction with (III). Prodts. are useful as powdery coating and sealing compsns., adhesives or binders for these, opt. in combination with hardeners, pigments, fillers, graphite, solvents or other resins. Pref. (I) are derived esp. from dicarboxylic acids and di- or tri-hydric alcohols and have >4% OH content and pref. (III) have 500 mol. wt. Reaction pref. takes place in a thin layer, opt. after applying to a substrate, esp. on inter-connected contrarotating rollers, opt. at different rotational speeds and temps., followe by removing, e.g., stripping, still fusible prodt. from substrate.
Patent DE-2209954-A1 (DE)
Title: Regenerating spent pickling liquor - with continuous cooling and automatic switching for separation of ferrous sulphate
Inventor: BABBEL HELMUT
IPC: C23G1/36
Filed: 1972-03-02
Abstract: The liquor, contng. H2SO4 and FeSO4, is passed continuously round a cooling circuit until the temp. falls to 20 degrees C, when a temp. sensor switches a valve to direct the liquor into a special chamber where the sulphate can crystallise out, leaving the acid to be returned to the system. When the temp. once more rises above 20 degrees C, the valve is again switched so that the liquor continues to circulate round the cooling pipes back into a container that is continuously replenished from the pickling baths. The speed of flow through the cooling section prevents any sepn. of sulphate crystals.
Patent DE-2210463-A1 (DE)
Title: Dissolving gypsum - using aq solns of ethylene diamine tetraacetic or another aminopolycarboxylic acid
Inventor: PODZUWEIT THOMAS DIPL CHEM DR
IPC: A61C13/00
Filed: 1972-03-01
Abstract: Aq. solns. of ethylenediaminetetraacetic acid, e.g., "Komplexon" (RTM), "Idranal" (RTM) or "Titriplex III" (RTM), or another aminopolycarboxylic acid, are used for dissolving gypsum and other difficultly soluble salts and minerals forming polyvalent cations on dissociation, partic. dental casts, e.g., of a few 100 g which can be dissolved at room temp. at pH 6.5-8.5 in 12-24 hrs. Aminopolycarboxylic acid solns. used may be (1) alkaline, and may be stirred mechanically or by introducing CO2, or (11) weakly acid to neutral, esp., buffered at pH 7 and mixed with a stream of CO2 bubbles generated by added alkali hydrogen carbonate, which is pref. admixed with the di-Na salt of ethylenediaminetetraacetic acid or with another weakly acid material which gradually dissolves under the reaction conditions.
Patent DE-2221658-A1 (DE)
Title: Filter - even level above filter cake ensures effective - filtration of residue
Inventor: LORENTS HOLTVIK NILS
IPC: B01D29/00
Filed: 1972-05-03
Abstract: The rest volume of a filter consisting of a vessel contg. horizontal disc type elements arranged on a vertical, hollow, rotatable shaft/filtrate outlet, is treated effectively in that the disc type elements are provided with a 30-60 degrees turned up edge to ensure that a pref. 10 mm deep, liquid layer is maintained during the final gas pressure filtration. Provisions are made to transfer the residual liquid by means of an external circuit from the bottom of the vessel to a distribution plate arranged above the filter elements. A possible gas leakage through the filtrate is prevented and the liquid suffers only relatively low gas adsorbtion.
Patent DE-2224993-A1 (DE)
Title: Chilled wort centrifuging - eliminates sediment clogging by yeast addn
Inventor: HODE TORSTEN VERNER DIPL ING
IPC: C12C7/24
Filed: 1972-05-23
Abstract: In a centrifugal sepn process of a fermentation substrate (wort) contg. suspended particles, yeast or other microorganisms are added to the substrate prior to sepn.
Patent DE-2227868-A1 (DE)
Title: Electrical continuous flow heater - for gaseous, fluid or solid material esp for melting plastics
Inventor: VOGEL HANS
IPC: H05B3/14
Filed: 1972-06-08
Abstract: A stable, porous heating core is used, made of electrically conductive powder.
Patent DE-2232781-A1 (DE)
Title: Blast furnace insulating material - of sand,ferrochrome slag, chamotte powder, water glass,water and surfactant
Inventor: SILBERMAN LEONID B
IPC: C04B28/26
Filed: 1972-07-04
Abstract: The heat insulating material for filling the space between the coobrigplates and the cover of a blast furnace is prepd. by mixing (1) 100 pts. wt. filler material consisting of 17-19 wt.% river sand, 8-10 wt.% ferrochrome slag, and chamotte powder, (2) 9-10 pts. wt. water glass as binder, (3) 19-21 water as solvent, and (4) 0.5-1.0 wt.% based on liquid components, of a surface active foaming agent. The material is gas-proof and has good flow properties. It hardens rapidly without shrinkage to give a uniform pdt.
Patent DE-2236117-A1 (DE)
Title: Foam plastics cutter - using parallel hot wires in travelling gantry
Inventor: BOETTCHER ALBERT
IPC: B26D1/553
Filed: 1972-07-22
Abstract: Foam cutter has a gantry driven so that the hot wires pass through the foam block, either by a falling weight coupled by cable over a pully at one end of the horizontal bed or by sloping the bed to the horizontal, so that the weight of the gantry provides the pressure on the block by the resiliently mounted height adjustable cutting wires. The supply to the wires is switched on and off by limit switches at each end of the machine bed with round guide bars for ball bearing bushes on the gantry.
Patent DE-2260101-A1 (DE)
Title: Flux free brazing of steel tube to copper tube - using copper coated steel tube
Inventor: APPEL HUGO
IPC: B23K11/20
Filed: 1972-12-08
Abstract: The steel tube is Cu- coated at its ends inside and out, and the Cu is applied preF. by inert atmosphere protected localised resistance heating of the steel tube and melting of Cu-rings slipped over and into the steel tube end. The elimination of flux results in the formation of cleaner brazed joints and simplifies the brazing operation.
Patent DE-2307289-A1 (DE)
Title: Photographic emulsion development - with progress determined by continuous light-absorption measurements in flow cell
Inventor: KATO HISATOYO
IPC: G01J1/42
Filed: 1973-02-14
Abstract: Continuous rapid and accurate determn. of the progress of development of a photographic emulsion is effected by (a) mixing a liq. photographic emulsion and a developer; (b) passing the mixt. continuously through a flow cell, without addn of a fixing or stopping soln; (c) illuminating the mixt. flowing through the cell with a certain light of any wavelenght; and (d) determining the absorption of the photographic emulsion. The emulsion can be exposed to light before entering the flow cell and is diluted before mixing with the developer. The light used for determ. passes through a sample 1-10 mm thick and the absorption of the (gelatino-Ag halide) emulsion is in the 0-4 range.
Patent DE-2324547-A1 (DE)
Title: Sulphur dioxide removal from combustion gases - by absorption in soln. and conversion into calcium sulphate dihydrate
Inventor: YAMASHITA KASANE
IPC: B01D53/50
Filed: 1973-05-15
Abstract: Combustion gases from oil-heated furnaces or oresintering plants are (a) treated with a circulated aq. soln. contg. (NH4)2SO3, (NH4)HSO3 and (NH4)2SO4 (pH 5.8-6.5) in which SO2 dissolves completely; (b) gaseous ammonia from stage (d) is dissolved in a part of the above soln. and pH 6.3-7.0; (c) a part of the soln. is returned to stage (a); (d) a part of the soln. is treated with lime milk in presence of large nucleating crystals of CaSO4. 2H2O at 90-100 degrees C and pH 11-12 to produce a slurry contg. CaSO3 and CaSO4, whilst gaseous ammonia is liberated and returned to stage (b); (e) air is blown into the slurry from (d) and its pH is maintd. at 2-4 by addition of dil. H2SO4 to convert CaSO3 and Ca(HSO3)2 into coarse crystals of CaSO4. 2H2O; (f) the slurry from (e) is filtered, and the filter cake is washed; (g) the mother liquor from (f) is neutralised with aq. ammonia and combined with the soln. from (c). By this method valuable coarse crystals of CaSO4. 2H2O are obtd. as a by-product, whereby the economy of the process is improved.
Patent DE-2328303-A1 (DE)
Title: Vapour deposition resistance heated carrier electrode - comprises replaceable intermediate element
Inventor: DIETZE WOLFGANG DR RER NAT
IPC: C01B33/035
Filed: 1973-06-04
Abstract: The resistance heated carrier rod on which Si or similar is vapour deposited is located in the recess of a replaceable metal or carbon holder which is pushed over the end of an electrode projecting through the reaction vessel base plate from which it is electrically insulated by an inert material pref. PTFE insulating sleeve. The electrode is pref. hollow and water cooled and made from Ag. The system permits the easy and cheap replacement of the short service life, electrode end in direct contact with the hot carrier.
Patent DE-2328416-A1 (DE)
Title: Rotary loom reed - thick discs separate edge binder threads
Inventor: VASCHEK VITEZSLAV DIPL ING
IPC: D03D47/26
Filed: 1973-06-05
Abstract: The draw-down edge binder threads are spaced by a few warp dimensions by thicker beaker-in discs, leaving a warp free space for shearing. The discs have notched edges forming weft striker surfaces in the same way as the usual thin warp separating plates in the body of the weave, but the edges here are inclined to the disc axis by the same angle as the weft is inserted to minimise friction. The notch geometry is such as to avoid threads jumping over the edge into the adjacent space due to the large angular displacements of the edge binder warps.
Patent DE-2329397-A1 (DE)
Title: Insulated rocket fuel charges contg. oxidant, metal and binder - prepd. by simultaneous extrusion of fuel strand and insulation followed by high frequency curing
Inventor: SIEGMUND GERHARD
IPC: F02K9/34
Filed: 1973-06-08
Abstract: The processing of a rocket propulsion compsn. contg. pref. ammonium- or K-chlorate as oxidising agent, Al or Mg as additive, and a silicone rubber as binder is claimed in the parent patent. The rubber is of the hot-vulcanising type. The fuel is forced through an appropriately shaped nozzle of a piston or screw press, and the binder is vulcanised by inductive heating as the mass issues from the nozzle. In this addn., in order to mfr. insulated fuel charges in 1 operation, fuel and insulation are simultaneously extruded through a common nozzle and hardening is effected by heating in an H.F. field. The insulating mass should have the same flow characteristics as the fuel compsn.
Patent DE-2332885-A1 (DE)
Title: Roof mounted combined radio and rear view mirror - fits above vehicle windscreen with loudspeakers above mirror
Inventor: KUHNE HARALD
IPC: B60J3/02
Filed: 1973-06-28
Abstract: The conventional rear view mirror is replaced by a shaped enclosure following the shape of the windscreen roof interface and having on its rear facing surface a rear view mirror positioned beneath two rearwardly directed loudspeakers themselves arranged on either side of an illuminated panel. On the enclosure next to the windscreen are two small interior lamps which direct light down the screen towards the dashboard. An aerial is provided on the forward facing side of the enclosure which contains a power pack for providing respective power supplies and the orientation of rear view mirror is adjustable.
Patent DE-2336025-A1 (DE)
Title: Transparent plastics sheet contg. filler - is flexible and useful as sound deadening cover for windows
Inventor: ERBEL EDGAR
IPC: E04B1/82
Filed: 1973-07-14
Abstract: Plastics material, e. g. polyethylene or polyisobutylene is mixed with heavy chemical cpds. e. g. barium sulphate, mercuric oxide, titanium oxide, zinc oxide, zinc carbonates barytes etc. then formed into sheets which can be rolled up. The The sheets retain their transparency.
Patent DE-2339852-A1 (DE)
Title: Printing machine using electrically conducting inks - has metallic lattice positioned opposite the paper to be printed
Inventor: GEBHARDT REINHOLD
IPC: H04N1/034
Filed: 1973-08-07
Abstract: Electrodes are embedded in an insulating material e.g. plastic and have a web-like ink carrier some 0.04 mm. thick located in front of them. The carrier comprises a fine support net made from e.g. glass fibre which holds the electrically conducting ink in its mesh. The metallic lattice is positioned opposite the net and has the paper for receiving the image located on its other side. The ink comprises conducting pigment particles e.g. graphite suspended in a binder. A voltage of at least 100 volt. is created between the lattice and the 'printing' electrodes. The colour solids correspond to those typically used on thermo-copying paper and which have a melting temp. of 80-150 deg.C.
Patent DE-2341194-A1 (DE)
Title: Vibration resistant adjustable vice - is carried in mounting sliding up and down in baseplate to absorb vibration
Inventor: ROTHER GUENTER
IPC: B25B1/22
Filed: 1973-08-16
Abstract: The vice enables workpieces to be subjected to vibration inducing treatment, e.g.g hammering, without the vibration being transmitted to the clamping mechanism. The latter rotates about a horizontal axis in a mounting rotating about a vertical axis, and it can be locked in different positions. The mounting slides up and down in a baseplate, typically by means of a cylindrical shank acting as its vertical axis. The vice jaws can have pads of different shape on opposite sides, the pair not in use bearing against the baseplate to act as a support, being mounted on a horizontal cylindrical shank sliding in the mounting.
Patent DE-2344296-A1 (DE)
Title: Folding package closure - overlapping angled flaps have nose portions fitting into slots
IPC: B65D5/10
Filed: 1973-09-03
Abstract: A closure for a folding package especially small filing box containers consists of two longitudinal closure flaps and two cross closure flaps. The longitudinal closure flaps have at least two nose flaps which fit into slots located on the cross closure flaps helping to lock them. The second longitudinal closure flap is located between the cross closure flaps and the longitudinal closure flap carrying the nose flaps. This produces a tensioning effect and creates a high degree of form rigidity for this package closure. The flaps forming the package closure are angled and located above each other.
Patent DE-2345281-A1 (DE)
Title: Roller blind type portable projection screen - has an automatic lock nut on the screen winding spindle
Inventor: HOFFBAUER HANS-GUENTHER
IPC: G03B21/58
Filed: 1973-09-07
Abstract: The screen material is wound on a spring loaded spindle contained in a housing tube. The upper screen edge is fitted to a reinforcing bar. The spindle has an end cap on one side with an externally threaded sleeve. This is fixed to the spindle by a pin passing radially through the spindle. The head of the pin projects. A nut is fitted to the sleeve and prevented from rotation by a projection sliding in a tube slot. As the screen is extracted the nut moves axially. when the side of the nut and the pin head contact, the spindle is stopped and the screen can be tensioned by telescopic adjustment of the support column. The design is simple, compact and cost saving.
Patent DE-2347579-A1 (DE)
Title: Electromechanical switch and storage system for electronic appliances - has adjustments pushbutton and magnet forming integrated unit
Inventor: HEINE KURT
IPC: H03J5/32
Filed: 1973-09-21
Abstract: An electromagnetic switching and programmed system for remote control of electronic appliance. It can be used as an auto-visio-matic switching system for a colour television receiver, where various functions are automatically adjusted in accordance with a programme and with no direct access to the function contacts by the operator. The switch is made as an integrated unit with changeover push button, additional control network module switch contacts additional adjustment elements and switching magnets. The preset additional adjustment elements in the push button can be actuated by spindles with screwdriver slots below the knob, which can also be used to prevent unauthorised access.
Patent DE-2347743-A1 (DE)
Title: Stabilising cct for aircraft uncontrolled rectifier - has supply transformer primary subwindings switched by thyristors to keep output within limits
Inventor: FRANKENBERG WOLFGANG DIPL ING
IPC: H02M7/162
Filed: 1973-09-21
Abstract: The stabilising circuit keeps the d.c. output voltage of e.g. an aircraft uncontrolled rectifier within given limits even during a.c. supply fluctuations and d.c. load variations. The rectifier is coupled to the a.c. supply over a transformer whose primary winding is divided for each phase into two parts. The first part alone or the two parts in series may be switched by thyristors to the a.c. supply network. The two subwindings for each phase are all connected in the same way to different groups of thyristor switches controlled by the rectifier output voltage level. The controllable switch may connect the subwindings into delta or star.
Patent DE-2362673-A1 (DE)
Title: Green algae cultivated with nitrogen-fixing blue algae - in fesh water or its mixts with sea water
Inventor: POHL PETER DR
IPC: A01G33/00
Filed: 1973-12-17
Abstract: Green algae are cultivated jointly with nitrogen-fixing blue algae or other microorganisms in fresh water or its mixts. with sea water, opt. with addn of trace elements esp. salts of Fe, Mn and Mo. The mixed algae can be used for prepn of human or animal food. The blue algae assimilate nitrogen from air, and the extracted products of their metabolism, which contain nitrogen, can be assimilated by green algae (which cannot assimilated nitrogen directly from the air). Thus, there is no need to introduce into the cultivation medium nitrates or ammonium salts or other nitrogen sources; only cpds of other nutrient elements, such as P,S, Na,K,Ca,Mg,etc and trace elements have to be supplied and only in reduced quantities if sea water is used, as it contains considerable amts of nurtitives. Thus the costs are considerably reduced, esp if the cultivation is carried out near sea-coast.
Patent DE-2405159-A1 (DE)
Title: Domestic water heater - with water level adjuster has resistor element immersed in water
Inventor: KREIKENBOHM ROBERT
IPC: G01F23/24
Filed: 1974-02-04
Abstract: Domestic water heater comprises a tank contng. an electrical element extending in the direction of water filling. The element is short-circuited more or less according to water level, and is connected to a comparator circuit including a resistor which is set at a nominal value, a transistor, and a control winding of a realy which switches off the flow when the transistor becomes conductive. The resistor set at a nominal value is variable and together with a resistance strip forms a potentiometer, the top of which is connected to the base of a transistor.
Patent DE-2405971-A1 (DE)
Inventor: ROJEY ALEXANDRE
IPC: F25J1/02
Filed: 1974-02-08
Abstract: Process for cooling a fluid such as natural gas, particularly for liquefying it, comprising compressing a mixture of gaseous constituents of different boiling points, condensing a fraction thereof by cooling, which fraction is subsequently vaporized in indirect contact with the fluid to be cooled, progressively cooling the remaining gaseous fraction in a column by direct contact with a countercurrent of liquid reflux, vaporizing a liquid fraction withdrawn from said column in indirect contact with the fluid to be cooled, cooling the gaseous phase issued from the top of the column by indirect contact with a vaporized liquid fraction withdrawn from the column so as to liquefy at least a portion thereof, using a portion of the resulting liquid as liquid reflux in direct contact with the gaseous fraction and reconstituting the mixture of gaseous constituents by admixing the gases evolved during the step of vaporization in indirect contact with the fluid to be cooled.
Patent DE-2406012-A1 (DE)
Title: Flat-folded box packing machine - delivers to transverse roller conveyor holding cartons in inclined ready position
IPC: B65B25/14
Filed: 1974-02-08
Abstract: The cut-out sheets for folding into boxes leave the gluing machine in staggered formation on a conveyor belt, at right angles to which is a stationary roller conveyor holding the cartons in which they are to be packed ready in an inclined position. After filling, a tipping mechanism connected to the roller conveyor brings the cartons into the horizontal position. The roller conveyor can comprise two roller tracks including a right angle between them, one supporting the carton base and the other its side. The tipping mechanism can be so arranged as to bring the filled carton into position for removal by a discharge conveyor.
Patent DE-2419607-A1 (DE)
Title: Vibration damping for machines e.g. presses - in which the machine is supported on a base mounted in a trough filled with damping fluid
Inventor: DELAM HEINZ
IPC: F16F15/023
Filed: 1974-04-19
Abstract: The machine is mounted on a support block which in turn is supported on springs in a trough which is filled with a damping fluid. When the machine support block moves, the fluid is forced through narrow gaps and through a channel which passes from the bottom of the support to its side to near the fluid level. The gaps between the sides of the trough and the support blocks are formed by wedges which are adjustable so that the damping action of the fluid can be varied. Beams are mounted in the bottom of the trough. Small gaps remain between the bottom of the support and the tops of the beams. These gaps also restrain the flow of the damping fluid. An adjustable throttle valves is mounted in the channel which passes through the support block, so that the damping action of fluid passing through this channel can also be adjusted.
Patent DE-2424827-A1 (DE)
Title: Call-back connection initiating circuit - for marker controlled telephone exchanges, uses special control line
Inventor: KAISER WALTER DIPL ING
IPC: H04M3/58
Filed: 1974-05-22
Abstract: A call-back control circuit establishes a connection from a call-back output of an external connection circuit through a call-back switching panel to an internal connecting circuit. The call-back control circuit for each external connecting circuit is connected to the marker through a special control line, through which the external connecting circuit initiating the call-back is identified in the marker; the external connecting circuit call-back output is connected directly with the call-back switching panel. When d.c. dialling is used with direct connection from the external connecting circuit to the internal register during the selection process, the end of dialling is evaluated in the external connecting circuit call-back control circuit.
Patent DE-2424881-A1 (DE)
Title: Avoiding solid deposits on aeration pipes - using vertical surface rising from centre of pipe to surface
Inventor: HORCHER WILLI
IPC: C02F3/20
Filed: 1974-05-22
Abstract: Single or multi-armed aeration pipe with horizontal alignment has vertical deflector plates rising vertically from the pipes. This tapers towards the central feed pipe terminating in a region above the main aeration zone. This inclined edge is rounded. The plate is made either from a rigid material, a cloth, a sheet or similar type of construction. The deflector can be held rigid by mounting wires. Each arm of an aerater has such a deflector plate. For preventing the accumulation of suspended solids or fibres on aeration pipe which thus would reduce their effectiveness.