baber/WOPTO huggingface dataset:
Patent DE-2901540-A1 (DE)
Title: Stereophonic headphones with sound tube connection - with attenuating material inside to reduce sound reflected from inside walls
Inventor: HEHEMANN GUENTER
IPC: H04R5/033
Filed: 1979-01-16
Abstract: The stereophonic headphones have sound connections to prevent sound appearing to originate from inside the head instead of from outside. The sound tube or auxiliary sound tube is subdivided, coated internally and/or provided with inserts such that nonlinear sound reflected from inside wall to inside is subjected to strong attenuation compared to the linear sound. The sound tube may contain an abosrbant plug or it may be divided into a series of sound channels lying parallel to one another inside the tube. Soft rubber or other sound attenuating material may be deposited on the inside wall of the sound tube to reduce reflections.
Patent DE-2901569-A1 (DE)
Title: Pressure spray system using compressed air - has air compressor and storage compressor fitted with valve to top up spray can pressure on demand
Inventor: GIELNIK HARRY
IPC: B65B31/00
Filed: 1979-01-17
Abstract: An air compressor is used to produce spray pressure in a spray can without any drive gas. The air compressor includes a storage container for pressurised air and is fitted with a supply valve permitting the repeated connection of a spray can in order to restore the air pressure in the can to the level required for the dissemination of the spray medium. After the removal of the spray head of the spray can its riser pipe is superimposed with a slight pressure on to the fitting outlet valve of the air compressor or of an air cartridge holding air under high pressure. The refill process can be repeated whenever the spray pressure in the can is no longer sufficient.
Patent DE-2903319-A1 (DE)
Title: Double star connected capacitor battery protection - includes transformer with primary winding between star points and delivering control signal when current deviates
Inventor: SCHIFFNER ERICH
IPC: H02H7/16
Filed: 1979-01-29
Abstract: Simplified protection of power capacitor battery is ensured by a current transformer as an isolating unit operating with an overburden. This makes the manufacture of the transformer easier and at the same time improves the reproducibility of response since it operates with a single working point. The primary (11) of the current transformer (10) is connected between the star points of the two capacitor batteries fed from three-phase network. The secondary (12) feeds a resistor R1 shunted by a voltage dependent impedance (20) and a full-wave rectifier (13). Overload or short-circuit in the capacitors results in circulating current between the star points and through the primary (11). Then the output of the rectifier activates a relay (14) disconnecting the capacitors.
Patent DE-2911402-A1 (DE)
Title: Capacitor bushing insulator - with plastic foam filling gap between conductive bolt and wound capacitor
Inventor: RENK DIETER
IPC: H01B17/28
Filed: 1979-03-23
Abstract: A capacitor type of bushing insulator for high-tension plant esp. for alternators, consists of a central conductive bolt and a coaxial wound capacitor around it. An annular gap is left between the surface of the conductive bolt and the inner capacitor plate and is filled with an elastic non-conductive material, except a metallic bush which joins both at one end. The pref. filler is an expanded plastic such as polyurethane foam. This is a reliable way of eliminating stress-induced cracks in the insulating material. The filler resists high mechanical stresses, e.g. during short circuits.
Patent DE-2912411-A1 (DE)
Inventor: ANDERSEN GEERT
IPC: A23G3/00
Filed: 1979-03-29
Abstract: Xylitol and sorbitol, when present in edible material, have the advantage that they do not decompose to form products attacking the dental enamel, but difficulty has been experienced in their use in confectionery material due to their instability or the fact that they may contain constituents not permitted by food laws. The invention provides a chewy sugar-free material based on sorbitol and a sugar-free swelling agent which has the required plasticity and cohesion so that it can be formed into attractive chewy sweets or hard sweets or gum, and furthermore the tendency of xylitol to recrystallize is suppressed, by the use of a swelling agent which may be carrageenates, pectins, agar, alginates such as sodium alginate or potassium alginate or calcuim alginate; carob bean flour, tragacanth, methyl cellulose, carboxymethyl cellulose, gelatine, gum arabic and/or low-sugar maltodextrin.
Patent DE-2912602-A1 (DE)
Title: Trackless vehicle guidance control system - has relay contacts set in branch paths, vertically positioned on top of each other to control direction at junction
Inventor: AUKSUTAT GUENTER DIPL ING
IPC: G05D1/02
Filed: 1979-03-29
Abstract: An automatic guidance system for vehicles following a conductor inset into the road surface provides a facility for a selective change in direction at a junction. The vehicle steering is effected by voltages induced in onboard coils due to the a. c. current in the ground conduction. At a junction the single cable (1) branches into two paths (A, B), each consisting of a pair of parallel cables (2a, 2b and 3a, 3b) vertically positioned on top of each other. Each pair has a butt in contact at the start of the section to allow current to flow through the top or bottom cable. If one path contact allows current through the top cable and the other through the bottom, a difference in induced signal will be detected to control the steering.
Patent DE-2921259-A1 (DE)
Title: Wall element supporting vegetation growth - has pockets in unit made of synthetic resin bonded filler materials
Inventor: HACKER DIETER
IPC: E04C2/52
Filed: 1979-05-25
Abstract: The wall element is for use in external building cladding systems. It may be used for lost formwork in retaining walls, and self-supporting boundary walls. It can act as a structural element to support plant life. It is made from filler materials bonded with hard-setting synthetic resin materials and it has one or more pocket-shaped depressions on its visible surface. Pockets are pref. higher than they are deep, and can be arched with underside holes. Mineral fillers, with expoxide resins for bonding, are suitable materials. This can provide attractive greenery, and is light in weight, with min. foundation depth needed, and is widely applicable.
Patent DE-2921875-A1 (DE)
Title: Mechanical writing implement with refill - uses pivoted pressure pad actuation, with rollers to transform radial movement
Inventor: GAZECKI PETER ING GRAD
IPC: B43K21/22
Filed: 1979-05-30
Abstract: The writing implement has a refill control element. The element consists of tensioning tongs, which hold the refill during writing and advance; and a tensioning sleeve, which close the tongs against spring action during an axial displacement. A compression element in the housing actuates the sleeve; and a guide tube in the housing tip has a friction connection to the refill, via a brake. The compression element consists of a pressure pad (30), which extends in axial direction of the housing, esp. of a grip section (20). The pressure pad is pivoted at a pivot point (19) on the housing, and its radial movement is transformed via roller bodies (36) into an axial movement of tension sleeve (80) and/or tongs (70).
Patent DE-2923750-A1 (DE)
Title: Low level indicator for sewing machine lubricating system - has submerged PTC resistance and LED in sewing plate
Inventor: WALTER HEINZ E
IPC: F16N19/00
Filed: 1979-06-12
Abstract: Warning signal is generated when the lubricant in the reservoir on the baseplate of an industrial sewing machine falls below a certain minimal level. The circuit comprises a sensor positioned at the required height in the reservoir and includes a resistance with a positive temp. coefft., and value of which increases as the temp. rises. In addn. there is a circuit for delivering a stabilised tension with which the resistance is heated; a device for supplying a reference tension; a means of comparing the tension on the resistance with the reference tension, and of producing a signal tension proportional to the difference between the fall in tension and the reference tension; and a transducer consisting of a light emitting diode. Eliminates the need for the operator ofa high speed industrial sewing machine to give continuous attention to the level of the oil behind a window. The alarm signal is put out automatically. The PTC-resistance is immersed below the minimal level and its heat is conducted away so long as it remains submerged.
Patent DE-2933209-A1 (DE)
Title: Reducing fuel consumption in thermal or nuclear power stations - where existing generator is used to drive very large generator to increase power output
Inventor: ZICKLER FRITZ
IPC: H02K53/00
Filed: 1979-08-14
Abstract: The existing power station plant is extended by adding an electricity generator with ca. five times the capacity of the previous generator; and the larger generator is driven by an electric motor fed with power from the original plant. The result is a substantial increase in power output for a given amt. of fuel, or a smaller amt. of fuel can be used than hitherto for creating a given amt. of energy; in the latter case, a redn. in the amt. of waste prods. is achieved.
Patent DE-2935019-A1 (DE)
Title: Adhesive, moulding and paint compsn. - for use by children, contg. borax, PVA soln. and opt. glycerine and dyestuffs
Inventor: MECKE NORBERT DIPL CHEM DR
IPC: C09D5/06
Filed: 1979-08-30
Abstract: Compsns. for use as adhesive, moulding materials and paints by children consists of borax in PVA soln. Glycerin and dyestuffs are opt. added. The prods. can be used for painting rough surfaces and moulding by hand. They give durable bonds with wood, paper, cardboard, 'Styropor', etc. They do not mark hands, furniture or clothing.
Patent DE-2935846-A1 (DE)
Title: Vulcanisable solvent-free sealants based on polyisoprene - modified with maleic anhydride, giving improved adhesion
Inventor: MINATONO SHOBU
IPC: C08G18/69
Filed: 1979-09-05
Abstract: Sealant compsns. contain (A) low mol. wt. polyisoprene made by anionic polymerisation using lithium-based initiator, with cis-1,4 content 75% min. and mol.wt. 20,000--77,000, modified with 0.1-20 mol. % maleic anhydride and/or a deriv., and (B) >=1 vulcanising agent consisting of S, and epoxy cpd., metal resinate, Pb or Zn cpd., combination of Ca(OH)2 and polyhydric alcohol, amine cpd. or isocyanate. Used as solvent-free sealants on metal, glass, ceramic or slate prods. Adhesion is improved without loss of the original properties of the polyisoprene e.g. heat stability and weather resistance. Processability and elasticity are good, and they present no health hazards.
Patent DE-2936623-A1 (DE)
Title: Condensate prodn. for coating compsn. - from aminoplastics methylol ether, poly:carboxylic acid and acrylate resin contg. hydroxyl gps.
Inventor: KRUEGER ALFRED
IPC: C08G63/685
Filed: 1979-09-11
Abstract: Prodn. of condensn. prods. involves reacting (I) methylol ethers of urea- and/or aminotriazine-HCHO condensates and monohydric 1-4C alcohols. (II) polyhydric alcohols and/or alkyd resins with over 4% OH content as polyhydroxyl cpds., and (III) aromatic and/or cyclic and/or heterocyclic polycarboxylic acids with min. 2 COOH gps. above 40 deg.C, opt. in the presence of solvents. In Parent Patent 2116511, (II) are (partly) replaced by unsatd. hydroxyalkyl ethylenecarboxylates (IIA). In this patent of addn., (IIA) are (partly) replaced by acrylate resins (IIB) contg. OH gps. Polycondensates are specified for use as binders for coating compsns. They are esp. useful in vehicle clear lacquers for metallic effects and in coil coating and electrophoretic compsns. They have high hardness and elasticity and good solvent resistance and are fast drying.
Patent DE-2937370-A1 (DE)
Title: Spirit-based transfer materials - with backing paper coated with substance accelerating or inhibiting ink migration
Inventor: KAASE GUENTER
IPC: B41M5/04
Filed: 1979-09-15
Abstract: Transfer copying materials comprise a layer of spirit-based printing ink on a backing paper, with the improvement that at least one side of the backing paper is at least partially coated with a substance (I) which accelerates or inhibits migration of the ink through the paper. (I) can be an accelerator such as castor oil, a polyhydric alcohol, or esp. oleic acid, or an inhibitor, esp. tannin. Coating the paper with (I) improves the appearance of the materials after prolonged storage in that the back of the paper is either uniformly stained by the ink or is not stained at all.
Patent DE-2942882-A1 (DE)
Title: Stabilising wing for water surface skimmer - has adjustable angled wings above centre of gravity
Inventor: FALKENHEINER HELMUT
IPC: B60V1/08
Filed: 1979-10-24
Abstract: The stabilising wing for a surface skimmer has a V profiled wing setting above the fixed skimming wing (1), with the control wing pivoted about an axis (6) parallel to the roll axis and above the centre of gravity (7) of the craft. The control wing is operated to counteract centrifugal forces on cornering. The pivoted control wing provides a simple correction force to allow the craft to operate in confined waters without uncontrolled lateral slip. Its setting does not provide lift but rather an adjustable lateral force.
Patent DE-2949718-A1 (DE)
Title: Hydraulic excavator shovel automatic parallel guiding mechanism - has pilot valve linking control cylinder and shovel tilt cylinder chambers
Inventor: SEGATZ FRITZ
IPC: E02F3/43
Filed: 1979-12-11
Abstract: The hydraulic excavator, incorporates automatic parallel guiding for the shovel (20). It has a swivelling bending arm hinged to a boom. There is a hydraulic control cylinder (26), or more than one cylinder engaging the shovel on both the boom (10) and the arm (16), in relation to its hinge point (14). The larger and smaller working chambers in this cylinder, and in the shovel tilt cylinder (22), are interconnectable via a pilot valve, pref. pneumatically activated. Control cylinder and bend cylinder (18) may be axially parallel, both engaging the same point on the arm. This is simple and inexpensive, and easily fitted.
Patent DE-2950283-A1 (DE)
Title: Current-dividing equipment between outlets - has pyramid-shaped body protruding into conical distribution chamber
Inventor: EMMENTHAL KLAUS-DIETER DR ING
IPC: F15D1/14
Filed: 1979-12-14
Abstract: The equipment evenly divides a two-phase current containing liquid and gaseous components, particularly a mixture of liq. fuel and air, between a number of outlets. It comprises a housing block (1) with a central inlet passage (2) and discharge passages (3) spaced evenly apart and branching off at different angles. A conical distribution chamber (10) is formed between the inlet and outlet passages, and into this there protrudes a pyramid- shaped divider body (8), the number of whose sides (9) corresponds to that of the outlets.
Patent DE-2952750-A1 (DE)
Title: Sterilised bags of fibre and plastic foils - mfd. by welding after two=stage smoothing of fibre foil edges
Inventor: SENGEWALD KARL-HEINZ DR
IPC: A61B50/30
Filed: 1979-12-29
Abstract: Bags for use in the medical or sterilising industry are made by joining two foils by sealing or welding along the periphery, where one of the foils is made of fibres which are suitable for gas, steam or radiation sterilisation, and is joined to a transparent plastic foil. The fibre foil is pretreated in two stages to smoothen it. The first stage includes a lengthwise heat treatment in the width of the intended joint by a flame or a radiator. The second stage is applied to the crosswise joints and is effected by applying heat and pressure to the fibre foil just before the plastic foil is applied to effect the joint. This prior treatment eliminates the formation of dust on the joint which could present a serious risk in operation theatres.
Patent DE-3000184-A1 (DE)
Title: Path control for NC machine system - has continuous comparison with model to ensure that profile machine stays within limits
Inventor: FRANK HERMANN
IPC: G05B19/4062
Filed: 1980-01-04
Abstract: The numerically controlled system for machinery includes a processing facility to minimise errors in profile caused by differences in the following errors of the different axes. The system servo drives operate to follow the commands generated by the system interpolator and each axes responds dependent upon the feed rate. Errors in profile result if the following errors are very different. The system maintains a continuous comparison with a model held in memory to ensure that the feed rate is held within specific limits to ensure profile accuracy.
Patent DE-3001296-A1 (DE)
Title: Large scale alpha numeric character display with electronic control - uses magnets on driven carriage to operate row of flaps for each character column
Inventor: SEELIGER KLAUS DIPL ING
IPC: G09F9/37
Filed: 1980-01-12
Abstract: The display uses a given raster for each character defined by a number of parallel axes (1,2,3) each carrying several rows of flaps (4,5), which can be moved between two stable positions. The flaps (4,5) are operated by a row of magnets moved across the back of the display via a motor-driven carriage with a control circuit including a light barrier and two microswitches. Each of the flaps (4,5) is moved between its alternate positions via a projecting nose (12) which cooperates with a cam carried by the armature associated with each magnet. The display is for large-scale use, designed to be easily read at a distance, e.g. for giving train timetable information or flight information at a train station or airport.
Patent DE-3001304-A1 (DE)
Title: Wind-driven vertical-axis rotor - has contra-rotating parallel blades, rotatable rudder and adjustable vane to optimise rotor position
Inventor: HANSEN UWE
IPC: F03D7/06
Filed: 1980-01-16
Abstract: The wind energy converter comprises a rotor (8, 9) which is rotatably carried (6) about a vertical axis on a column (7) and has two blades (10, 11) rotatable about parallel vertical axes (12, 13) at right angles to the wind direction. The distance between these axes at least equals half a blade width and does not exceed one blade width. The two blades are contra-rotatingly coupled with 90 deg. phase difference . In the sector opposite to that occupied by the blades, the rotor has a radial arm (5) carrying an extension (2) rotatable about the arm centre line. The extension holds a rudder blade (3) and a vane (4) which is adjustable in a direction at right angles to the extension. This arrangement optimises the position of the rotor relative to wind direction and force.
Patent DE-3008072-A1 (DE)
Title: Magnetic signal generator for electronic ignition system - employing ferromagnetic plate on rotor arm moving between permanent magnet and hall element
Inventor: BRAND GUENTER
IPC: F02P7/07
Filed: 1980-03-03
Abstract: The signal generator is intended to replace the contact breaker in an IC engine. A permanent magnet (1), of rectangular shape (2) to ensure parallel flux lines in the body, is typically carried on a mounting plate in the distributor housing. On the same mounting is a Hall element (4) arranged opposite one pole of the magnet and separated from it by an air gap. The distributor driving spindle (5) carries a ferromagnetic plate (3) which revolves through the gap between Hall element and magnet. With the plate interposed the magnetic flux is short circuited and the Hall element changes stage thereby giving the timing signal to the electronic ignition system. The mounting carrying the fixed components can typically be rotated through an arc by a conventional automatic advance and retard system. The ferromagnetic plate (3) has the necessary number of fingers for the number of engine cylinders.
Patent DE-3016436-A1 (DE)
Title: Dual purpose noise screen wall slab - contains ducting or cooling for solar energy heat exchanger with black absorbent surface
Inventor: MAIBACH GERD DIETER
IPC: F24S90/00
Filed: 1980-04-29
Abstract: The covering, penetrable by sound, facing the source of noise and sealing a shell, and a sound-absorbing panel behind this, at an interval from the shell rear, make up an element mounted between posts in a wall affording protection from noise. The shell (16) also has ducting, and, if appropriate a cooling surface system located in it, as a heat-exchanger (15) for a solar energy installation for a heat pump or cooling installation, exchanging heat energy with the environment. A black mat may be provided behind a perforated lattice work or mesh.
Patent DE-3027257-A1 (DE)
Title: Toilet cistern discharge valve - has flow medium led to bellows unit in cistern to provide drive
IPC: B43K8/18
Filed: 1980-07-18
Abstract: The outflow valve is a standard-type valve, mechanically operated by lifting, or opening, in a flushing cistern. Drive is provided by a collapsible bellows-type unit inside the cistern, with the flow medium conveyed to its interior. The lever, swivelling about a horizontal axis on a cistern side, can have a plate supporting an end of the bellows unit, the other end being supported on a counter-bearing connected to the cistern housing walling. There may be several bellows units, with separate ducts in their interiors.
Patent DE-3045933-A1 (DE)
Title: Sheet-metal roll binder strip shredding machine - has truck with transverse guide for catches on jaws
Inventor: NAKAIE TAMIO
IPC: B65B69/00
Filed: 1980-12-05
Abstract: The shredding machine is for a binder strip placed round a roll of sheet-metal, having a truck (3) movable to and from the roll (1) as this is delivered, and parallel to its axis. A T-shaped catch guide bar (12) coupled to the truck forward end has a transverse groove in its front face, while scissors-type clamping jaws (15) have catches (14) pointing inwards at their ends, sliding in the groove. First and second rams actuate the bar and the jaws respectively. A pair of L-shaped bars are mounted in bearings on opposite sides of the truck, their longer arms extending towards each other. A primary cutter blade (25) is fixed to the underside of the guide bar transverse portion, and a rubber cushion (49) is fixed to this blade at the middle. A second truck (28) adjacent to this transverse portion travels to and from the roll in a direction at right angles to the first truck, and has top and bottom loading rollers (35,29), the former moved to and from the latter by a third ram.
Patent DE-3047780-A1 (DE)
Title: Electric toaster or grill - uses ceramic glass plate, separating cooking space from electric heating elements
Inventor: MOELLER HEINRICH
IPC: A47J37/08
Filed: 1980-12-18
Abstract: The toaster or grill uses a heating element with a heating conductor which is bare of insulating with a glass ceramic plate (7,7') separating the heating element (6,6') from the food being cooked. Pref. the food is inserted between a pair of glass ceramic plates (7,7') with a respective heating element (6,6') positioned behind each of them. A reflector (11) for the heat radiation is pref. positioned behind each of the heating elements (6,6'). The toaster or grill may be in two halves (1,2) each incorporating a heating element (6,6') with one of them being hinged for insertion and remoVal of the food.