baber/WOPTO huggingface dataset:
Patent DE-2064611-A1 (DE)
Title: Dust filtering system
IPC: B01D46/30
Filed: 1970-12-30
Abstract: Device consists of a number of filter chambers, with layers of filter material on grids in their bases, cleaned by countercurrent purge gas flow during operation. Clean gas outlets are common to all the chambers, which have a common inlet manifold. At least one purge gas line is used, and a pre-separator is placed between gas inlet and the chambers. A separator is mounted downstream of chambers and connects to purge gas line. A blower for purge gas is mounted after separator and has outlet connected to gas inlet upstream of entry into preseparate. A second blower, to draw main gas flow through unit, is mounted on end of clean gas outlet
Patent DE-2116075-A1 (DE)
Title: Dicyandiamide-formaldehyde-sulphite condensates - used as additives to cement, plaster and surfactants
IPC: C08G12/40
Filed: 1971-04-02
Abstract: Water-sol. condensates of dicyandiamide (I), HCHO (II) and sulphites (III), e.g Na2S2O5, are prepd. by dissolving (I) in aq. (II)-soln. at pH 4-5 and elevated temp. precondensing at 60-80 degrees C for >=10-100 mins. cooling and neutralising the soln. reacting the resulting precondensate with an alkali-(III) at 60-80 degrees C, diluating the soln. with water, setting the pH at 2-5, condensing the reaction prod. at 55-95 degrees C for 1-5 h, and finally setting the pH to 7-10.
Patent DE-2202806-A1 (DE)
Title: Pile fabrics - with pile loops formed with leno motion
Inventor: RATZKA HANS
IPC: D03D27/08
Filed: 1972-01-21
Abstract: Fabric is made of ground warp ends, together with warp(s) for forming the pile loops, the pile warp ends being threaded into a leno motion, so that the end(s) can be twisted around the ground picks, to prevent the pile loops from being pulled out.
Patent DE-2204660-A1 (DE)
Title: Worm extruder avoiding fatigue by using a cut-out
Inventor: HEIDRICH HORST
IPC: B29C48/03
Filed: 1972-01-28
Abstract: The screw is held off by a prestressed axial pressure spring on the drive side. The driving shaft carries a pressure bearing behind the gear train, this bearing being supported against another bearing attached to the drive housing. The prestressed spring is normally a Belleville spring mounted round the screw drive shaft and lies between the two pressure bearings. An attachment to the second bearing is connected to a switch so as to cut off power if the axial pressure spring load reaches its max. rating.
Patent DE-2222565-A1 (DE)
Title: Rotary kiln - heated by mhd generator at one end
Inventor: REESE ADOLF
IPC: F27B7/34
Filed: 1972-05-09
Abstract: A rotary kiln has a heater fitted at one end, to supply hot gas flowing along the kiln; the heater comprises a conventional magneto-hydrodynamic generator, supplying current to the grid and having a heat exchanger situated in the plasma gas flow; this heat exchanger pre-heats the combustion chamber and is so designed that it cools the hot gas to the temperature required in the kiln.
Patent DE-2252809-A1 (DE)
Title: Corundum crystal drawing - using ohmic heating and a group vi metal crucible
Inventor: BAGDASAROW CHATSCHYK S
IPC: C30B11/00
Filed: 1972-10-27
Abstract: The crucible has a charge contg. alumina and has a protective medium; the material forming the crucible has a m.pt. >2300 degrees C. Process avoids use of an expensive Ir crucible and allows crystals of 200 x 100 x 5 mm or larger to be drawn.
Patent DE-2306919-A1 (DE)
Title: Amino-chlorobenzaldehydes in high-yields - prepd using acid hydrolysis of chloro-dichloromethyl-phenylisocyanide dichloride
Inventor: TARNOW HORST DR
Filed: 1973-02-13
Abstract: Prepn. of amino-chlorobenzaldehydes of gen. formula (I): where n = 1,2,3 or 4, by acid hydrolysis of a cpd. (II): at pref. 80-120 degrees C, using pref. 4-6 times the quality of concn. H2SO4 in a smooth, high-yield reaction. (I) are used as inters. for rodenticides, dyes and plant-protection agents. Some of (I) have themselves rodenticidal act.
Patent DE-2315762-A1 (DE)
Title: Semiconductor component - based on thin monocrystalline semiconductor film on insulated substrate
Inventor: PRICE JAMES BRIAN
IPC: H01L21/306
Filed: 1973-03-29
Abstract: Esp. for use in high speed switching components or ICs, the thin film, is not >3 mu m thick, is formed by a number of different possible processes at the base of a groove cut in from one face of the disc of insulating material, eg. undoped Ge, and is then covered by an insulation film and a support layer. Esp. the thin monocrystalline film is of Si and the insulation film covering it is dioxide, nitride or oxy-nitride of Si. relatively simple and cheap method for high quality.
Patent DE-2320107-A1 (DE)
Title: Superconducting niobium-titanium alloys - contg yttrium and opt zirconium to raise critical current density
Inventor: TADA NAOFUMI
IPC: H01L39/12
Filed: 1973-04-19
Abstract: Superconducting Nb-Ti alloy for coils of superconducting magnets contains 20-50 atom % Nb, 2-15 (2-6) atom % Y, bal. Ti, and pref. 1-15 (2-6) atom % Zr. Pref. alloys consist of a polyphase structure with a Y-rich phase contg. a fine-grain structure having a 1 mu ave. grain-size and a Nb-Ti matrix. This is achieved by cooling melt separated into two liquid phases.
Patent DE-2322702-A1 (DE)
Title: Hydrogen prodn. by thermal decompsn of steam - on ferrous chloride bed, with regeneration of the obtd. magnetite
Inventor: KNOCHE KARL FRIEDRICH PROF DR
IPC: C01B3/10
Filed: 1973-05-05
Abstract: Hydrogen is produced by reacting FeCl2 with water vapour at 1000 degrees C to form FeO and HCl and then reacting FeO with water vapour to form Fe3O4 and H2. Fe3O4 is subsequently regenerated to FeCl2 by reaction with HCl (or its mixt. with Cl2). The reaction is carried out in cycles, pref. in a solid-bed reactor (shaft furnaces, rotary kilns or fluidised bed, reactors can also be used). The process can be economically performed, if a heat source having very high temp. such as a nuclear reactor, is used.
Patent DE-2336472-A1 (DE)
Title: Seal for heating element for food vessel - chamber around terminals filled with silicon rubber
Inventor: POHL WILLI
IPC: H05B3/06
Filed: 1973-07-18
Abstract: A hairpin shaped heating element housed in the base of a tank for holding food or a beverage, has its ends connected to terminals incorporated t the rear of a socket which is afterwards installed in the base of the wall of teh tank, so as to fit flush with the outside. The regio around this connection is enclosed by a chamber formed by sleeve tot he ends of which flanges are brazed, having cut-outs for the leads and the socket. This chamber is filled with liquid silicon rubber which is allowed to set, to form a moisture tight and insulating seal.
Patent DE-2339395-A1 (DE)
Title: Attachment for percussive drills - riveting etc function by cancelling torque to apply impact only to tool
Inventor: LEMCKE RICHARD
IPC: B25F3/00
Filed: 1973-08-03
Abstract: Percussive drill attachment for riveting, calking, panel etc. beating or straightening duties. A pressure bearing at the top ensures that the impact is transferred to the inserted tool, with the rotation cancelled and the resulting torque likewise due to the fact that the axis is only connected to the drill casing by a ball joint.
Patent DE-2342576-A1 (DE)
Title: Miniature pocket camera with telescoping housing - has viewer and flash cube socket on extending part
Inventor: ETTISCHER HELMUT
IPC: G03B15/04
Filed: 1973-08-23
Abstract: The telescoping camera housing is designed to reduce overall dimensions when the camera is not in use. The extending movement is used to transport the film and set the shutter. The front and rear viewfinder lenses are fixed in the extending part so that in the closed position they lie in front of and behind the film cassette chamber respectively. The rotating flash socket is fitted in the outer end of the telescopic section. Flash ignition can be by percussion, piezo electric or by battery. The design provides adequate spacing between camera lens and flash bulb to avoid the "red eye" effect.
Patent DE-2343098-A1 (DE)
Title: Fume extn. on welding torches - using outer concentric sleeve on torch, thus forming a suction channel
Inventor: BINZEL ALEXANDER
IPC: B08B15/04
Filed: 1973-08-27
Abstract: The burner consists of a hollow handle with a core carrying the continuous electrode wire, protective gas, and if necessary, water or air coolant for the jet. The novelty is that an outer jacket of insulating material is fitted over the handle so that an annular space is provided. At the back end of the handle, the outer jacket is connected with a flexible tube fitting over the wire-feeder, and also forming an annular gap, this tube is connected to a filtering unit. The front end of the jacket is fitted with a sleeve which surrounds the welding head or jet, thus forming an annular gap through which fumes and gas can be sucked. At the back of the sleeve are air holes which can be covered or exposed by the movable sleeve, thus altering the amt. of suction.
Patent DE-2346320-A1 (DE)
Title: Paper sheet feed from stack - has unloader roller swinging into sheet guide position at further stage
Inventor: FORTMANN HERMANN
IPC: B65H29/12
Filed: 1973-09-14
Abstract: The mechanism is particularly for use in a copying machine, having a driven roller lowered onto the stack so as to feed the top sheet of continuously-running feed rollers. The first roller is carried on swing levers, working between a first position in which it pulls the top sheet off, and a second one, after the sheet has passed to the feed rollers, in which it passes the sheet to a further station in the machine. This roller can have a series of suction apertures, communicating with vacuum chambers inside it. In the second position, it can be arranged to separate the sheet from the light-conductive coating of the machine belt, for onward transport via a further pair of rollers.
Patent DE-2349051-A1 (DE)
Title: Mutually-reactive ingredient packing process - uses partitions of solid and anhydrous organic liquid mixture
Inventor: FRANZEN KURT DR
IPC: B65D81/32
Filed: 1973-09-29
Abstract: The packing is for use with multi-ingredient adhesives, where mixing may only take place immediately before use. The ingredients are delivered in turn into a common container, being separated from each other by non-reacting partitions. The latter comprise a mixt. of solid and liquid anhydrous organic substance. At high temps. the mixt. becomes pourable, but at room temp. the solid substance separates out to give a gel-like consistency.
Patent DE-2355551-A1 (DE)
Title: Frame construction for tipping vehicles - has central vertically operating hydraulic cylinder to distribute tipping loads across frame
Inventor: JUENGERINK JOHANN
IPC: B62D21/06
Filed: 1973-11-07
Abstract: The tipping vehicle has pref. two or more axles with the tipping hydraulic cylinder fitted approximately centrally in the frame, the cylinder being supported in a plane beneath the vehicle frame on a fixing plate, to which four diagonal tension struts are attached whose other ends are fastened to axle mounting blocks in the region of the higher side bearers of the vehicle frame. The fixing plate lies in a higher plane than that passing through the vehicle axles, and the hydraulic cylinder is mounted on it by means of a ball joint at its lower end.
Patent DE-2401013-A1 (DE)
Title: Spiral staircase with sectioned central tubular column - has overlapping clamps at section ends with tension threads
IPC: E04F11/032
Filed: 1974-01-10
Abstract: The staircase is made up from individual elements assembled one above another, comprising cylindrical tube sections constituting a central column with segmented steps fixed to them. An overlapping clamp device is inserted in the area of each joint between the tube sections, engaging in components connected to them and drawing them together, one on the other, by means of a tension thread. A rectangular-cross-sectioned spacer ring may be inserted between the sections. Magnetised plates with bolt holes through them may be used for tension force transfer at the ends of the tube sections. A staircase with good load bearing capacity can be quickly assembled without skilled labour.
Patent DE-2402864-A1 (DE)
Title: Folding sun shade screen for motor vehicles - also acts as safety device cushioning impact in the event of collision
Inventor: KINDERMANN KARLHEINZ BERNHARD
IPC: B60R21/08
Filed: 1974-01-22
Abstract: The design not only obviates the problem of sunshades and visors causing injury on vehicle impact, but also dispenses with the requirement for separate accident cushioning systems. With sudden braking or frontal impact, the sun visor automatically folds down by ninety degrees. The retardation force moves the visor and it can be set for different values. The construction is such that the drivers head is cushioned as its hits the visor, upholstered and sprung material being used. The surface of the visor extends to accommodate the head shape. A similar system can be used for rear seat passengers.
Patent DE-2408154-A1 (DE)
Title: Roll-type capacitor mfr. - using thin flexible glass-web as the dielectric
Inventor: MUELLER ULRICH DR ING
IPC: H01G4/20
Filed: 1974-02-20
Abstract: An electrical roll-type condenser whose dielectric consists of a thin flexible glass web is mfd. by drawing an endless fibres from a glass melt; rolling-out the fibre in a heated multi-stage roller frame to obtain a glass web of desired width and thickness; metallising same whilst providing it with insulating marginal zones required for the condenser foils; and coating with an org. dielectric e.g. acetyl cellulose, adapted to promote the regenerative efficiency of the condenser. The resulting condenser has a glass dielectric with reproducible values. The glass web may be 10, and the plastics coating may be 1 micron thick. The metal layer may be 'pulled' around the edge of the glass web by oblique vapour metallising. The contacting of the condensers wound from the glass webs is effected by metal-spraying of the frontal faces.
Patent DE-2409992-A1 (DE)
Title: Tear-open self adhesive envelope - incisions form easily grasped tab forming continuation of perforations
Inventor: GFELLER RUDOLF
IPC: B65D27/38
Filed: 1974-02-27
Abstract: A tear open, self adhesive envelope which does not employ a wire or other separate tear strip, has two parallel lines of perforations down one end of the envelope, terminating in a pair of incisions (12) which travel across the gummed flap (6), the strip of adhesive (8) being interrupted at that region. These incisions may terminate in two triangular cut-outs (14, 15). This system gives a tab (16) which is easy to grasp, and when pulled after the envelope has been filled and sealed, enables the end of the envelope to be detached by pulling so that a band (11) is removed between the perforated lines.
Patent DE-2412527-A1 (DE)
Title: Compensation of cable delay method - for use between TV cameras and control units
Inventor: MAREY MOHAMED DR ING
IPC: H04N5/073
Filed: 1974-03-15
Abstract: TV cameras are often connected to their control units by different lengths of cable. It is thus necessary to compensate for the cable time delay so that the line sync. pulses generated in the control unit and used in the camera are synchronised. This compensation may be checked by displaying on a TV monitor for oscilloscope the relative times of the camera and control unit sync. pulses. The line sync. pulses are used to generate a +ve and a -ve square wave which is wider than the sync. pulse. These are then differentiated to produce narrow pulses from the backedges of the square waves. When a test-switch is operated, a sawtooth waveform is generated in the camera and one narrow pulse is superimposed upon it. A white and a black line will represent the camera and control unit sync. pulses when viewed on a monitor.
Patent DE-2413835-A1 (DE)
Title: Support hoop for horticultural foil tunnels - is bent spring steel bar with outer fixing component for tensioning lines above ends
Inventor: HEILMANN REINHOLD
IPC: A01G13/04
Filed: 1974-03-22
Abstract: Support hoop for foil tunnels, specifically those used in horticultural and agricultural hot beds, where the hoop consists of a spring steel bar bent into a semi-circular form with both ends stuck into the ground. Above each end of the support hoop, an outer fixing component for external tensioning lines of the tunnel is integrally formed with the support hoop by cold bending. Specifically, the fixing component has the form of a closed eyelet which projects outwards from the support hoop and has its opening in the plane of the support hoop.
Patent DE-2414894-A1 (DE)
Title: Palette removal installation used with concrete materials - with support grips moved hydraulically on both sides of roller track controlled by curved plates
IPC: B65G59/06
Filed: 1974-03-28
Abstract: The installation is for the removal of one pallette from a stack of concrete building materials where the shaped concrete when compressed is laid up on pallettes. There are controlled support grips positioned on either side of a roller track with the support grips capable of being moved up or down so that the bottom pallette of the stack can be freely removed after each operating lift movement. The support grips are moved up or down hydraulically with the control of their movement away from the stack outline and back into it being assured by curved plates.
Patent DE-2418525-A1 (DE)
Title: Laminated capacitor with wave-shaped edges - is made of dielectric and metal foils with waves 180 deg out of phase to reduce unwanted discharges
Inventor: BEHN REINHARD DIPL PHYS
IPC: H01G4/232
Filed: 1974-04-17
Abstract: The laminated capacitor consists of two insulating foils, coated on both sides with metal films. The films are wave shaped at the edges of the foils and arranged so that the waves of the one film protrude beyond the wavey edges of one foil, and the waves of another film protrude beyond the wavey edges of the other foil. The waves are 180 deg. out of phase with one another to give the overlap. This displaced, wave-shaped arrangement between foils and films reduces unwanted local discharges and makes the value of the capacitor more stable.
Patent DE-2418869-A1 (DE)
Title: Flow-mechanical logic device for binary input variables - has control channel fitted to stable output channel of monostable hydraulic intensifier
Inventor: ERNST ALBRECHT DIPL ING
IPC: F15C1/14
Filed: 1974-04-19
Abstract: Flow-mechanical logic circuit for functions of two binary input variables has the central channel fitted to the stable output channel of a monostable hydraulic intensifier and is connected to the passive hydraulic elements via a guide. The hydraulic element has threeinput channels which open into an interaction chamber, to which three channels are connected. Two channels pass to deaeration openings while the middle channels opens into the guide. The passive hydraulic element has two input channels which open into the interaction chamber to which three channels are connected. The middle channels passes to a deaeration opening and the other channels open into the guide and the central channel. The central channel in the unstable output channel of the intensifier is connected to a deaeration opening.
Patent DE-2419633-A1 (DE)
Title: Hot material hopper discharge system - increases rate of sealing fluid delivery to transport material hydraulically
Inventor: SOUMAGNE HANS
IPC: F27D99/00
Filed: 1974-04-24
Abstract: The system is for use with lumpy or granular material, where the hopper outlet is sealed off by a barrier fluid from the atmosphere. During discharge the rate of fluid delivery is increased, effecting discharge by hydraulic action. Hydraulic discharge can be at least partly upwards, and can be controlled automatically by measuring and regulating units. The outlet can have a rising discharge pipe through which the material is transported hydraulically. The system avoids deposition of fines in corners and on the hopper floor. The hopper is designed so that, in section, the sloping walls are approximately at right angles to each other.
Patent DE-2422019-A1 (DE)
Title: Overhang stiffener for coils of electrical machines - has binding bands connecting winding conductors and plastics filler between conductors
Inventor: LINDNER WOLFGANG
IPC: H02K3/50
Filed: 1974-05-07
Abstract: The plastics material can be moulded and hardened. It is introduced between two adjacent winding conductors, and the hollow space between two winding rods is enclosed on all free sides by the binding bands and is sprayed with a cold-hardening cementing composition, which is capable of flowing. The hollow space is formed by a first and second band. The first band binds two adjacent winding conductors and the second band, which runs square to the first band, covers the first in the space between the winding conductors. The conductor element of two parallel winding conductors is enclosed by a solid insulating covering.
Patent DE-2423555-A1 (DE)
Title: Electronic switch unit for model railway - has three transistors connected to give automatic blockwise operation
IPC: A63H19/24
Filed: 1974-05-15
Abstract: The emitter-base region of a first transistor is in parallel with a conductor connecting the supply lead and the current rail to be supplied; the transistor's collector is connected via a high-value resistor to the second pole of the current supply and, via a control lead, to the base of a second transistor, whose emitter collector region is in the supply lead to a block rail that lies rearward, and to which voltage can first be applied via switches when the block rail of the forward block length is cleared by a train. The emitter-base region of a third transistor is connected in the current lead between the collector of the second transistor and the block rail of each block length, the emitter of the third transistor is connected to the base, and the collector to the collector, of the first transistor for supply of the current rail of the same block length; its base is connected via a resistor to the supply lead.
Patent DE-2424080-A1 (DE)
Title: Leakage to earth detector - consists of two antiparallel diodes, of which at least one is light emitting diode
Inventor: STROEMER RUDOLF DIPL ING
IPC: G01R19/145
Filed: 1974-05-17
Abstract: The diodes are connected in series with a resistor between a live conductor and earth, and in case of nonearthed a.c. mains with any number of phases, possibly with a subordinate d.c. network, the detector consists of a number of circuits as above, connected between each phase and earth. If sufficient leakage current flows in the right direction through the light emitting diode in any of the circuitry, it lights up, giving positive indication of a beam. Only one light emitting diode is used in each circuit, as the leakage current is always in the correct direction during one half of the ac cycle.
Patent DE-2433499-A1 (DE)
Title: Cooling device partic. for deep freezers or refrigerators - has cold reservoir which contains a water/inorganic salt mixture of low melting point
Inventor: SCHROEDER JOHANN DIPL CHEM DR
IPC: F25D11/00
Filed: 1974-07-12
Abstract: A cooling device partic. for use in deep freeze cabinets or refrigerators whose interiors are held at a specific working level consists of a cold reservoir (5) which maintains the low operating temperature and contains the coolant whose melting point is below the operating temperature. The coolant is an entectic mixture of sodium chloride and water of melting point -21.2 deg.C and of salt content 21.5 wt. %. In general the coolant may have a melting point between -18 deg.C and -40 deg.C.