baber/WOPTO huggingface dataset:
Patent DE-2939169-A1 (DE)
Title: Prodn. of methane from agricultural waste - using two stage process with initial acid stage followed by alkaline fermentation
IPC: C02F3/28
Filed: 1979-09-27
Abstract: Treatment of a biomass such as liq. manure, manure or abattoir waste for conversion to biogas (2/3 CH2, 1/3 CO2), comprises a initial stage which is carried out under acid conditions (pH5).The subsequent stage of the process is under alkaline to neutral conditions. The reactor contains an inner vessel for the acidic reaction. Residence time in the acid stage is ca. -3 days. The feed enters the acid reactor from the base and overflows from the top. For use on forms or other agricultural establishments, and pref provides a profitable method for using form waste with good gas yield.
Patent DE-2940229-A1 (DE)
Title: Road map with locations of road signs - has distances to destinations and road crossings appearing on these signs
Inventor: NIETGEN JOHANNES
IPC: G09B29/00
Filed: 1979-10-04
Abstract: The arrangement is intended for a road map and facilitates orientation and simplifies calculation of mileages to be travelled before commencing a journey. It also clarifies orientation during the journey. It consists of entering on the map the location of road signs and the mileages to destinations and to road crossings, shown on these signs.
Patent DE-2940946-A1 (DE)
Title: Slow fade inoculant for molten cast iron - comprising iron silicon alloy, high melting calcium aluminium silicate and a di:calcium aluminium silicate contg. carbide(s) of silicon an
Inventor: MOERSDORF WOLFRAM WERNER DIPL
IPC: C21C1/10
Filed: 1979-10-09
Abstract: An inoculant for molten cast iron comprises (a) a crystalline, Si.-contg. matrix of iron silicon alloys, (b) high melting point calcium aluminium silicate cpds. in the matrix crystal structure, and (c) a dicalcium aluminium silicate material with up to 20 wt.% SiC and 10 wt.% Ca-C2. The amt. of (b) in (a) is 5-30 wt.%, esp. 8-15 wt.%, and the ratio of (a) + (b) : (c) is 1:0.05-0.2. The inoculant is added to molten cast iron in an amt. of 0.05-1 wt.%, pref 0.1-0.5 wt.%, or is added to the burden before melting in an amt. 0.05-4 wt.%. The inoculant has low-fade properties and is esp. useful for cast iron in a melting furnace or in an appts. for keeping it hot. Because it retains its properties, the amt. of further inoculant required immediately before teeming is reduced and the cast prod. consequently has improved properties such as hardness and reduced porosity. The inoculant can be used in the prodn. of vermicular, flake or nodular graphite cast iron.
Patent DE-2943348-A1 (DE)
Title: Telephone answering machine aggregate - keeps cradle contacts open to permit dictation and replay of messages without impeding incoming calls
Inventor: KUHNERT HARALD ING GRAD
IPC: H04M1/654
Filed: 1979-10-26
Abstract: A combined telephone subscriber's appts. and answer machine in a housing space (6) is covered by a lid (1). When it is opened a trip piece (2) actuates a lever (3) in such a manner that the spring-loaded cradle (4) is held depressed even though the telephone receiver is lifted off, and remains so as long as the lid remains open. As a consequence, the user may dictate a message or replay it in the knowledge that no external call is impeded. If such an incoming call occurs, the user need only close the lid again and then respond to the call in the usual way.
Patent DE-2947217-A1 (DE)
Title: Pawl drive for knitting machine programming drum - has cylinder rotary phase selecting pins for each tooth to be indexed with sequence control device
Inventor: JOHNSON BRYAN KINGSLEY
IPC: D04B15/94
Filed: 1979-11-23
Abstract: Pawl drive for circular knitting machine control or programming drum has a pair of pawls driven in synchronism with the cylinder revolutions effecting a number of successive index steps. Drive has a number of cylinder phase selecting devices each of which has a set of selection positions and each set is associated with a particular cylinder phase, and >=1 set is provided for one tooth on the ratchet wheel for determination during which rotary phase of the cylinder this tooth is to be indexed. Drive includes further cylinder phase indicating devices which are associated with other devices to achieve a sequence of control positions each of which in turn is associated with a particular one of the succession of the phases. Indexing step control devices are provided for superposition of a number of indexing steps onto the wheel for effecting a continuous or intermittent drum feed. Control device is intended for the order to selection of positions and for the control of the indicating devices to permit indexing in the selected phase only. Reliable actuation of couplings for the cam discs in a knitting machine is achieved and clashing of e.g., sock knitting tools and their breakage is prevented.
Patent DE-2950401-A1 (DE)
Inventor: FOERSTER HEINZ DR
IPC: A01N37/48
Filed: 1979-12-14
Abstract: Novel phenoxybenzoic acid derivatives of the general formula <IMAGE>  (I)  in which R1 and R2, independently of one another, each represent hydrogen or methyl, n represents zero or 1, x represents hydrogen or chlorine, y represents oxygen, sulphur, imino (NH) or alkylimino (N-alkyl) and z has the meaning given in the specification, a process for the preparation of the novel compounds and their use as herbicides and plant growth regulators.
Patent DE-2952431-A1 (DE)
Title: Solar energy cell made from silicon wafer - where surface of wafer is etched to produce recesses reducing reflection and increasing light absorption
Inventor: LINDMAYER JOSEPH
IPC: H01L21/306
Filed: 1979-12-27
Abstract: One surface of the wafer is employed to receive and absorb incident light and to convert the light into electrical energy. The surface is first coated with a mask which resists the attack of an etchant, and the exposed zones of the Si are then etched to produce symmetrical recesses in the surface, which is subsequently provided with an electrical connection. The mask pref. has a uniform thickness and covers all the surface of the Si, the mask is made esp. by an agent which oxidises the Si to form silica, and the silica is pref. covered by photoresist and etched to form the mask. The recesses are pref. inverted pyramids, of which the bases occupy more than 90% of the surface of the Si. The rear side of the wafer may also be provided with similar recesses filled with metal acting as a heat sink. All the incident light is absorbed, none being reflected, so the energy yield of the cell is increased.
Patent DE-3000316-A1 (DE)
Title: Handling unit for recessed bricks - are aligned for random feed at transfer station and moved laterally normal to foam filling station
IPC: B65G47/82
Filed: 1980-01-05
Abstract: Rectangular bricks (13) provided with recesses (46) are moved from a conveyor (1) on which they arrive in random pattern to a station where the recesses are filled with foam from nozzle heads (33). Each brick or pair on the conveyor is aligned by a stop (16) at a transfer station, whilst following bricks (13b) are held stationary (12). The stop is withdrawn (17) and a slidable striker (23) is moved in a direction normal to the conveyor centre line (14) to transfer the aligned bricks (13a) to a second conveyor (6) which travels towards the foam filling station. This transfer may be via a movable transfer table (10) and a horizontally and vertically movable slide (31).
Patent DE-3003007-A1 (DE)
Title: Low-temp. heat long-term storage system - utilises medium in watertight vessel accommodated in deep borehole
Inventor: KRIEB FRANZ KARL
IPC: F28D20/00
Filed: 1980-01-29
Abstract: The system stores low-temp. heat over a long period, the heat from any desired source being supplied via circuits containing a medium of any desired chemical composition and purity. The storage medium in a watertight storage vessel is lowered into deep borehole in the earth, so as slightly to heat the adjacent earth mass, the capability of the latter to store heat for long periods being utilised. On extracting the stored heat to satisfy peak demand, the latent heat of the storage medium on changeover from the liquid to the solid state is utilised. On heat extraction by heat pump the quantity of stored heat is increased by the amount of heat from the surrounding earth and its water content, and by heat supplied by circuits. Devices to prevent bursting of the vessel and heat-transfer pipes due to alteration in the volume of the storage medium when changing from the fluid to the solid state.
Patent DE-3013522-A1 (DE)
Title: Heating radiator valve union - comprises plug with sliding spout having flange for union nut adjustable lengthwise
IPC: F24H9/12
Filed: 1980-04-08
Abstract: The heating radiator union comprises a spout and a screw thread for the attachment of valves etc. It comprises a radiator union plug (5) containing a sliding spout (1) with flange for a union nut (8) and the valve cone face. The valve is adjustable lengthwise by a clamping nut (2) and compression joint (4). A detachable locking device (6) prevents it being pulled out, being sealed in the plug.
Patent DE-3014847-A1 (DE)
Title: Direct recovery of electrolytes in surface treatment plants - where workpieces travel through common rinsing liq. used on both inlet and exit sides of treatment tank (OE 15.10.80)
Inventor: WITTMANN ENDRE DR ING
IPC: C25D21/20
Filed: 1980-04-17
Abstract: Surface treatment tank contg. an electrolyte is provided on its inlet and exit sides with a rinsing tank and >1 pumps are used to circulate the liq. employed in these tanks so its composn. is the same in both. When the treatment tank contains a hot electrolyte, losses by evapn. are pref. replenished from one of the rinsing tanks. The liq. in these tanks is pref. water or a soln. which stabilises the electrolyte in the treatment tank. Used e.g. in plants for electrodeposition of Cu, Ni or Cr, where the recovery is ca. 88-89%.
Patent DE-3016004-A1 (DE)
Title: Compact winder for still camera - has folding rewind lever in recess in winder knob
Inventor: ENGELMANN DIETER
IPC: G03B19/04
Filed: 1980-04-25
Abstract: The winder for a compact still camera has the rewind lever folded into a recess in the winder knob and linked to the rewind drive when extended. The rewind shaft engages an automatic clutch, when the lever is moved, and provides a fast rewind action. The winder knob is set between the film spools in a flat profile housing. The edge of the knob extends over the camera case profile for fingertip control. A diagonal groove over the knob houses the folding rewind lever.
Patent DE-3022142-A1 (DE)
Title: Double-floor construction, accommodating services - has plinth support faces at unitary level for non adjustable supports
Inventor: RADTKE W
IPC: E04F15/024
Filed: 1980-06-13
Abstract: Plinths are erected on a basic floor, each having a support face on which a vertically aligned support element for a top floor is then positioned, in constructing a double floor in a building. The support faces of the plinths (14) are levelled to a given height, so that support elements (15) which are not adjustable for height can be subsequently set up on them. This can involve use of masks held at the required height and filled underneath, pref. with a laterally bounding socket used as shuttering. The plinths can consist of two mutually height-adjustable parts (15,16), with a prefab. rigid support element on top of a pref. curved surface. Support elements do not impede installation of cables and services, and precise level setting is achieved at an initial stage.
Patent DE-3023447-A1 (DE)
Title: Stripping mould rings off injection mouldings - coupled pressure cylinders move saw-toothed tubes down to push rings off
Inventor: SEIDL LUDWIG
IPC: B29C45/42
Filed: 1980-06-23
Abstract: Elastic rings in adjacent grooves along the circumference of a mould core tool are stripped off by at least one axial device introduced into the gap between the core and its female tool when the mould is opened. This device is long and rigid, it is applied at the periphery of the rings, it moves parallel to the core axis and then returns. Simple design, clean action.
Patent DE-3024010-A1 (DE)
Title: Unrolled hinged strip floating swimming pool cover - has plastics or elastomer foil strips joined between panel strip edges
IPC: E04H4/08
Filed: 1980-06-26
Abstract: Strip-shaped buoyant panels are hinged together along their longitudinal edges, to make up a covering for swimming pools. Hinged connections are in the form of foil strips (4) made of flexible plastics or elastomer material, with edges (5) joined to the panel (2) edges. The latter can have a groove (3), widening at the bottom, while foil strip edges are correspondingly profiled, and inserted in the grooves. Grooves can be mushroom-shaped in cross-section, and foil strips can be made of transparent material. Panels can have convex-sectioned undersides, and/or convex curved exteriors.
Patent DE-3025698-A1 (DE)
Title: Multiple twister - has magnetic clutch as drive connection to supply spool
Inventor: KULIMANN HELMUT ARBON
IPC: D01H7/86
Filed: 1980-07-07
Abstract: A magnetic clutch (52) carries the drive between the spool drive (50) and the supply spool (34). One magnetic clutch section (54) is keyed to the spool drive (50) while the other section (56) is bonded to the supply spool (34) with a magnet gap (58) between them. The thread passing from the hollow spindle (16) passes through the magnet gap (58) into the thread ballooning zone (76). The mechanism reduces drive problems in a multiple twisting unit, normally experienced with gear drives.
Patent DE-3027809-A1 (DE)
Title: Seal for compressed air slide valve - has sintered bronze of porous polyethylene lining to valve bore in zone of port
Inventor: MEYER HANS-FRIEDRICH
IPC: F16K3/24
Filed: 1980-07-23
Abstract: A sealing arrangement for sliding assemblies, esp. a piston or valve sliding in a bore, is for use where a port enters the bore within the swept zone of the piston or valve. In the region of this port, the bore is lined with a sleeve of porous material. The preferred porous materials are rigid, and include sintered bronze and low-pressure polyethylene. Pref. this sleeve is arranged to be flush with the remaining bore of the cylinder or tube. The preferred use is for a compressed air slide valve. For this use, the porous sleeve rests on a step in the bore of the valve casing, and beyond the sleeve a further tubular lining of non-porous materials holds the sleeve in place. With this arrangement, the problems caused by sealing rings bulging out into the port are eliminated.
Patent DE-3035573-A1 (DE)
Title: Magnetic transportation of hot rolled prods. onto cooling bed - via roller track fitted with linear motors which apply acceleration or braking forces
Inventor: KUEPPERS RICHARD
IPC: B21B43/00
Filed: 1980-09-20
Abstract: Hot rolling mill train used esp. to produce small or medium steel rods or profiles is followed by a cooling bed, to which the rods etc. are transported via a roller track. While on the track, the rods are exposed to travelling magnetic or electrical fields employed to apply acceleration or braking forces to the rods. The acceleration or braking forces are applied in the longitudinal direction of the rod, but additional electromagnetic forces may also be applied at 90 deg. to the direction of travel (R) of the rod. One pref. appts. employs pairs of linear motors located between the rollers forming the track. One motor in each pair is located below the rod, the other being mounted above the rod. A hot rolled rod (W) travels (R) over rollers (1a) of roller track (1), which is provided with a row of pairs of linear motors (4,5). Levers (5a) and levers (4a) are used to move each motor (4,5) vertically to obtain a desired air-gap (S). Each motor (4,5) has grooves (7) contg. stator windings (8) fed with three-phase a.c., so an acceleration force can be applied in direction (R) or a braking force exerted. The ribs (9) between grooves (7) are provided with pole pieces (10) for optimum distribution of the magnetic flux.
Patent DE-3039667-A1 (DE)
Title: Hydraulic stamping press safety operating control - uses damping cylinders for initial raising of ram with simultaneous function testing
Inventor: SCHOEN HANS
IPC: F16P3/04
Filed: 1980-10-21
Abstract: The press has a press cylinder for driving the ram and at least one pair of damping cylinders between the ram and the press frame at either side of the machine. The damping cylinders have pistons with a stroke length corresponding to the max lift of the ram. Their cylinder spaces are each coupled via a respective line to a control device for providing a counter force in the last stages of descent of the ram. During the upwards movement of the ram the damping cylinders are coupled via non-return valves and a press control to the hydraulic source to provide the necessary initial force for lifting the ram and for simultaneous function testing. If no fault is found the ram is raised at a faster rate using the main cylinder, while the hydraulic fluid is drawn off from the damping cylinders to a reservoir via valves which close automatically when the pistons are at rest.
Patent DE-3043104-A1 (DE)
Title: Elastomer-filled damper unit for vehicle - has stem with plunger extending beyond head into bottom auxiliary vessel
Inventor: KEDZIOR JOZEF DIPL ING
IPC: B66C9/12
Filed: 1980-11-14
Abstract: The elastomer damper unit has a vessel filled with precompressed elastomer, into which a headed stem protrudes. Inside the main vessel (2) and at the bottom (8) is an auxiliary vessel (5). The stem (1) has a plunger (4) extending beyond the head (3). The plunger can work in a guide (18) in the main vessel, while the plunger is guided in the auxiliary one and incorporates a lengthwise recess (9). As an alternative to this recess, there can be a port in the wall of the auxiliary vessel, and which can accommodate a non-return valve.
Patent DE-3045426-A1 (DE)
Title: Enhanced oil recovery by injection of carbon di:oxide - and aq. wetting agent, both preceded by aq. foaming agent
Inventor: BALINT VALER DIPL ING DR
IPC: E21B43/16
Filed: 1980-12-02
Abstract: A process for enhanced recovery of oil from a reservoir, using the injection of CO2 or similar gas, comprises the following steps. (i) An aq. soln.of a synthetic foaming agent is injected at an injection well. If the formation has a gas cap, this injection is made at its boundary, giving a foam curtain to prevent penetration of foam into the cap. (ii) CO2 or other gas is injected to displace the oil, with an aq. soln. of wetting agent to counter the tendency of asphaltenes sepd. out by the CO2 to deposit on the pore walls. (iii) Water, opt. satd. with CO2, is injected. Used esp. in formations of varying permeability. CO2 is not wasted by filling the gas cap. By the action of foaming and wetting agents, the vol. of oil removed per unit vol. injected is increased, as is the displacement of oil on the micro scale.
Patent DE-3100701-A1 (DE)
Title: Eccentric adjustment for the coupling ring of a steering rod in wheel suspensions in motor vehicles
Inventor: GOEBEL RUDOLF
IPC: B62D17/00
Filed: 1981-01-13
Abstract: The invention relates to an eccentric adjustment, for example for the coupling ring of a steering rod in wheel suspensions in motor vehicles, an axially divided eccentric sleeve which penetrates the swivel bearing sleeve and the bearing bracket and receives the screw bolt of the screwed connection being provided, in each case one of the two eccentric discs being formed onto the parts of the said eccentric sleeve, the two eccentric sleeves engaging one in the other, with their ends which face one another, in an axially movable fashion but fixed in terms of rotation, one of the eccentric sleeves being constructed at the same time as a nut and at least the eccentric disc which lies on the side of the screw head having positively engaging faces to rotate the said disc.
Patent DE-3101213-A1 (DE)
Title: Convertible sofa having three cushions of the same width
Inventor: LIEBERKNECHT ARTHUR
IPC: A47C17/04
Filed: 1981-01-16
Abstract: The invention relates to a convertible sofa having three cushions of the same width which can be used selectively as a chair or as a bed, a further cushion (2) being attached pivotably by means of a hinge (6) to the front edge of the cushion (1) serving as the bottom part, and a back cushion (3), in which there is arranged a recess (7) corresponding to the shoulder width of the human body, being disposed vertically with its narrow surface on the cushion (1) serving as the bottom part. The cushion (2) and the back cushion (3) are connected to one another, on the one hand, by means of a releasable connection (5), and, on the other hand, by means of a flap (4). <IMAGE>
Patent DE-3104900-A1 (DE)
Title: Process for the preparation of interferon II and stabilised clones for carrying out the process
Inventor: KRAMMER PETER DR
IPC: C12P21/00
Filed: 1981-02-11
Abstract: The invention relates to the process for the preparation of type II interferon from T lymphocytes by sensitisation and selection of clones from heterogeneous T lymphocyte populations, where these cell clones are subjected to a mitogenic stimulation and, after further cultivation of the stimulated clones, type II interferon is harvested, in particular from the cell-free supernatants from the cultures, according to Patent ... (Patent Application P 3019621.5-41), which is characterised in that the stimulation is carried out in serum-free medium, and to the cell clones producing type II interferon for carrying out this process.
Patent DE-3106098-A1 (DE)
Inventor: BERGLER OTTO
IPC: B27B5/20
Filed: 1981-02-19
Abstract: A combination table and miter saw is provided which has a slotted strip attached directly to a rotatable work supporting base plate. The slotted strip is part circular and forms a bearing connection for a saw assembly which accommodates pivoting of the saw assembly about an axis through a working surface of the bottom of the base plate. A threaded adjusting spindle for locking the saw in position during table sawing is connected to a bearing block which also is attached to the slotted strip.
Patent DE-3107310-A1 (DE)
Inventor: BERGER ALFRED
IPC: F16L59/16
Filed: 1981-02-26
Abstract: 1. A tubular slide-on sleeve (5) for the area of connection of lengths of pipes (1a, 1b) of a heat-insulated pipe with an inner medium tube (1), an outer tube jacket (3) and an insulating layer (2) located in between them, with the slide-on sleeve (5) bridging the space between the neighboring ends of the jacket tubes (3) of neighboring lengths of pipes so as to achieve a closed surface area, characterized in that the slide-on sleeve (5) consists of a socket pipe (5c) and a case (5c), which fits closely to the outer (5a) and inner (5b) surfaces of the socket pipe (5c), surrounding them completely without adhering to them, and the overfeed socket (5) can be slipped on to the outer tube jacket (3) of the lengths of pipes that are to be connected (1a, 1b) and when in a slipped-on condition, the socket pipe (5c) and the case (6) can be separated from each other.
Patent DE-3118743-A1 (DE)
Title: Corrosion inhibitor mixture, especially for pipe insulations
Inventor: RAMETSTEINER KARL
IPC: F16L58/00
Filed: 1981-05-12
Abstract: A corrosion inhibitor mixture which is intended, in particular, for pipe insulations contains at least one water-soluble salt of an inorganic acid, at least one water-soluble salt of an organic acid and at least one inhibitor which has an anti-corrosive action in the vapour phase. In order to achieve such a mixture which is suitable for external insulations of pipes, does not require evaporation of the solvent, can be stored over extended periods and can be applied directly even onto the surface of hydrophobic insulations, the mixture is contained in an essentially anhydrous solvent consisting of alkanolamines and/or urea or thiourea.