baber/WOPTO huggingface dataset:
Patent DE-2908860-A1 (DE)
Title: Torsional moment adjustment system - is for testing rotating transfer elements, using closed gear system with swivelling bearing rod arrangement
Inventor: ANDRES HARALD DIPL ING
IPC: G01M13/02
Filed: 1979-03-07
Abstract: A closed stressing drive system for testing rotating mechanical transfer elements has two parallel shafts connected together at both ends via pairs of gears and braces w.r.t. each other by a device with an adjustable torsional moment. It is improved compared to similar systems in that the torsional moment is continuously dynamically variable. This is achieved simply and economically. The gears (1, 7) attached to the shafts (8, 10) at one end form a disengaged first pair coupled via a further pair (3, 5) engaged with each other and each with one of the first pair. The further pair of gears is arranged within a system of rods (2, 4, 6) enabling it to be rotated from its basic position whilst maintaining engagement so as to adjust the torsional moment according to the rod angular displacement (Phi).
Patent DE-2910222-A1 (DE)
Title: Motor-driven rotary tooth-brush - has circular-shaped brush head protected by casing for safe but thorough tooth polishing
Inventor: SCHMEJA EWALD DIPL ING
IPC: A61C17/26
Filed: 1979-03-15
Abstract: The toothbrush consists of a handle (1), containing the water or electric drive rotating the drive shaft (6). A replaceable brush (2) on a spindle (3) can be attached to this drive shaft (6), the bristles of which are vertical to the drive shaft. Both the brush (2) and the spindle (3) are surrounded by a protective casing (4), shaped to allow a third of the bristles on the brush to be exposed. This protective casing (4) also surrounds a part of the handle (1) and is fixed by a snap fastener. A switch (5) for switching the toothbrush brush on and off, as well as for reversing direction is on the handle. The toothbrush is safe to use without harming the inside of the cheek or mouth.
Patent DE-2925835-A1 (DE)
Title: Universal joint seal assembly - comprises sleeve with channel delivering lubricant trapped in bellows to roller bodies
Inventor: SCHMID LEOPOLD F
IPC: F16J3/04
Filed: 1979-06-27
Abstract: The seal is for a rotary universal joint with inner and outer halves and rolling bodies between them transmitting the torque and which are lubricated. A shaft is fixed to the inner half, and an elastic sleeve in the form of a bellows seals the outer half to the shaft. The sleeve incorporates a channel (9), by which the portion of the lubricant (2) trapped in its folds on stopping is discharged with the aid of centrifugal force on rotation and forced towards the roller bodies (5). This channel can be formed by a spiral fold (10) in the sleeve.
Patent DE-2929246-A1 (DE)
Title: Small calibre vessel prosthesis prodn. - from polyurethane, fine mesh polyester knitted tube and silicone rubber, using coated polyethylene tube as former
IPC: A61F2/06
Filed: 1979-07-19
Abstract: A polyethylene tube is wrapped in a preformed tape of submucosa or serosa from sheep or cattle or provided with a coating of dissolved collagen or a protein coating of dissolved gelatin, which is allowed to dry. It is then coated by immersing several times in a polyester - or polyetherurethane or copolymer soln. in DMF and xylene and allowed to dry, whilst turning, and then dried for several hrs. in a thermostat at ca 90 degrees C. The ca 20 um thick polyurethane film obtd. is given a 0.1-0.2 mm thick silicone rubber coating by immersing several times in a 10-20% silicone rubber soln. drying well at ca. 40 degrees C and completed polymerisation. A knitted tube of very fine polyester yarn, with a mesh size of ca. 0.15 mm2, is drawn over the silicone rubber coating and embedded in silicone rubber by repeated dipping. A 0.2-0.6 mm polyurethane filament is wound spirally over the tube, the winding spacing corresp. to the filament dia. then the tube is coated with silicone rubber soln. again to lock the filament. Finally to give a completely smooth inner surface, the prosthesis is briefly immersed in a 1-2% soln. of polyurethane in DMF and xylene in 8:7 ratio and dried several hrs at ca 90 degrees C. Removal of the polyethylene tube gives a tube with the required dia. which is accurate, can be of any size and can be made conical.
Patent DE-2937983-A1 (DE)
Title: Power line switchgear control capacitor - has two stacks connected by straps inside oil-filled chamber with insulation layers
Inventor: FRIELINGSDORF HELMUT
IPC: H01G4/38
Filed: 1979-09-20
Abstract: The control capacitor has a stack of capacitors inside a porcelain insulator with cooling flanges around the top and bottom forming an active part between end caps. These capacitors are separated with two equal stacks. The two stacks are connected by two straps connected to end plates at the junction ends of the two stacks. The stacks are enclosed by a layer of material such as paper or plastics foil. At each outer end of the two stacks is a bellows or membrane member forming an equalising device, the whole enclosed by an oil filled chamber. Around the two stacks are displacement strips and between these and the insulator is a layer of glass or resin balls. The straps between the two stacks have two arms extending outwards for connection to the end plates, with a U bend connecting the arms.
Patent DE-2944579-A1 (DE)
Inventor: NIEMEYER LUTZ DR
IPC: H01H71/14
Filed: 1979-11-05
Abstract: 1. A single- or multi-pole low-tension line circuit breaker with a contact position (22, 24) comprising a movable contact (22) and a fixed contact (24) for each pole, having an arc extinction chamber associated with the contact position (22, 24), on which position by means of a switch mechanism (12) an overcurrent trip acts in the event of an overload current or short circuit current, the fixed contact (24) being mounted on a guide bar which forms both an arc guide bar (26, 50) and a terminal, characterised in that the contact position (22, 24) is associated with a component (42, 58a, 63, 64) which is made from a memory alloy and which is deformed when and after its transition temperature is exceeded and so forces the contacts irreversibly apart.
Patent DE-3001375-A1 (DE)
Title: Integrated multicell photovoltaic generator - uses semiconductor wafer with two major surfaces, one having several discrete areas covered by oxide layer
Inventor: LINDMAYER JOSEPH
IPC: H01L31/0475
Filed: 1980-01-16
Abstract: The integrated photovoltaic generator contains a number of photovoltaic cells, the generator capable of producing a voltage greater than that generated by a single photovoltaic cell of comparable chemical compsn. The generator comprises a wafer of semiconductor material having two major surfaces. At least one of the major surfaces includes a number of discrete areas contg. an impurity of one type of conductivity. At least the portion of the remainder of the wafer contiguous to the areas contg. an impurity of an opposite conductivity type. An electrical conductor is positioned between >=1 area and the portion of the wafer contg. the impurity of the opposite conductivity type.
Patent DE-3002037-A1 (DE)
Title: Synthetic whipped cream-forming emulsion - contg. essential fatty acid, lecithin and mono:glyceride lactate emulsifier mixt. and stabiliser salt
Inventor: HEINE CHRISTIAN DIPL CHEM DR
IPC: A23D7/01
Filed: 1980-01-21
Abstract: Whippable fat emulsion consists of a mixt. (claimed) contg. by wt. (A) 90-98.5% natural, opt. hardened fat mainly consisting of 4-22C plant fatty acids having ascending m.pt. 20-50 deg.C (B) 0.5-3(1-2)% lecithin and (C) 1-5(2-3)% lactate of a 6-22C fatty acid monoglyceride, the mixt. being emulsified in an aq. medium contg. (D) 0-2 (0.2-1) wt. % Na pyrophosphate, NaHCO3 and/or Na citrate, as stabiliser. The fat component (A) contains mono- and poly-unsatd. fatty aids and opt. up to 10 wt. % natural butter. In (C), the lactic acid: monoglyceride molar ratio is esp. 1:4. The compsn. opt. contains aromatisers, dyestuffs and sugar. The fat emulsion is prepd. by melting the fat-emulsifier mixt. by heating to 60-65 deg.C and emulsifying in an aq. phase contg.(D). The aq. medium is water, opt. admixed with 5-10 wt. % skim milk powder, skim milk and/or milk. Fatty acid emulsifier mixt. to aq. phase ratio is 1:1.5 to 1:5 (1:2 to 1:4). The compsn. is used for the prepn. of an essential fatty acid- contg. synthetic whipped cream compsn. which is well tolerated physiologically tastes well, has a high storage stability and a year-round uniform quality.
Patent DE-3006530-A1 (DE)
Title: Hydraulic locking ball valve - has valve controlled suction device reducing pressure in actuation chamber to open valve
Inventor: BROMS STIG
IPC: F15B13/01
Filed: 1980-02-21
Abstract: The hydraulic locking or holding valve has a plug, typically a ball, preferably spring-loaded against a main seat and situated between an inlet chamber between it and the seat and an actuation chamber on the opposite side of the ball. The inlet (24) and actuation (14) chambers are connected via a throttle passage (13), and the actuation chamber is connected via a suction device (25) to a valve (32). The latter reduces pressure in the actuation chamber in relation to that in the inlet chamber, thus lifting the ball off its seat (17) and causing it simultaneously to bear against the suction device, thus restricting outflow of hydraulic fluid from the actuation chamber.
Patent DE-3010271-A1 (DE)
Title: Wear protection inset for vertical conveyors - is used in underground mining and is made of wear resistant plastics with curved outer and straight inner sections
Inventor: BEST GERD
IPC: B65G11/06
Filed: 1980-03-18
Abstract: The wear protection inset is for vertical conveyors, used especially for spiral slides in underground mining with at least one section curved like a shovel (outer wear inset) and an adjoining stretched section normally extending in a straight line in the same radial plane (inner wear inset). Both outer and inner wear insets are made in one piece and have the width of two normal wear insets. The wear inset made in one piece is formed symmetrical to its radial length axis and is made from a suitable plastics material specially resistant to wear.
Patent DE-3013624-A1 (DE)
Inventor: PANTHOEFER RUDOLF
IPC: A01K63/04
Filed: 1980-04-09
Abstract: A housing for an aquarium filter. The housing is pressure-resistant and is provided with a removable cover. The cover, or a ring (a thrust ring) surrounding the cover, is rotatable relative to the lower part of the housing, and an axial movement is attainable by rotation by way of inclined surfaces for attaining a sealing pressure.
Patent DE-3014508-A1 (DE)
Title: Collagen-based suture treatment - in soln. contg. isopropanol water, glycerol and carbohydrate(s) to improve suppleness on exposure
Inventor: BAUMGARTNER LUDWIG DIPL CHEM D
IPC: A61L17/08
Filed: 1980-04-16
Abstract: Collagen-based surgical suture-, i.e. catgut, thread properties are improved by treatment in a soln. contg. isopropanol, water, glycerol, at least one carbohydrate and opt. standard additives. The treated thread is highly supple and does not dry out on exposure, e.g. up to 5 hrs., under standard atmos. conditions. The carbohydrate is esp. sorbitol, xylitol or Na carboxymethyl cellulose. A pref. treatment soln. contains, by wt., 1-6% glycerol, 2-10% carbohydrate, 8-10% water and 70-90% isopropanol. After several, e.g. up to 7 days action time, the soln. is removed and the thread can be packed in standard manner, without preserving soln., and sterilised.
Patent DE-3016815-A1 (DE)
Title: Ceramic handle extraction mechanism from cleaning machine - has ram operated slide with rollers travelling on slotted rail
Inventor: LINDIG VOLKER
IPC: B65G47/90
Filed: 1980-05-02
Abstract: The mechanism extracts ceramic blanks, partic, handles, from a cleaning and cutting machine, having a frame, and plates on which the handles and corepieces rest. The frame (20) has a slotted rail (8) on which rollers (9) travel, a bar (8) being supported by the rollers and having a ram (6) and slide (7) rigidly coupled to it. Two hinging ramps (10, 11) rest on the rail as the ram extends, and there are guides (15) movable obliquely in relation to the plane of a conveyor belt (12), equipped with pairs of adjustable ejectors (13, 14) and return springs (19).
Patent DE-3018872-A1 (DE)
Title: Cleaning system for glass chemical vessels - interrupts cleaning-liquid spray long enough for films to break on vessels
Inventor: BIERMAIER HANS
IPC: B08B3/02
Filed: 1980-05-16
Abstract: The cleaning system, for medical bottles and flasks, sprays the vessels with a pressurised cleaning liquid intermittently. The pauses between sprayings are long enough for the films formed by the cleaning liquid on the vessels to break before spraying continues. The spraying time is short (e.g 0.1 seconds) compared to the pauses. The cleaning liquid is injected into the cleaning chamber by means of compressed air or by using a pump. The supply of liquid is regulated by a magnetic valve in the line leading from the liquid reservoir. A second valve regulates the compressed air to the reservoir. (14p-).
Patent DE-3024519-A1 (DE)
Title: Sulphur di:oxide gas obtd. from ore used to mfr. sulphuric acid - esp. where pyrite dust is fed into cyclone furnace to obtain gas contg. sulphur di:oxide and non:ferrous metal vapour
Inventor: TASIOR ANDRZEJ
IPC: C22B5/02
Filed: 1980-06-28
Abstract: In a conventional cyclone furnace is a combustion chamber, in which fuel is burnt to form gas fed into a reaction chamber supplied with ore, esp. very fine flotation pyrite. In the reaction chamber, non-ferrous metals are evaporated while sulphur is oxidised. The molten iron obtd. is removed in a sepn. chamber, whereas the hot gas is cooled in a separate appts., esp. a fluidised bed cooler. The temp. in the reaction chamber is pref. 1600-1800 deg.C so the pyrite melts and the non-ferrous metals evaporate. In the pref. plant, a fluidised bed cooler causes the solidification of the non-ferrous metals and any iron mist in the gas. A simple.and inexpensive process which avoids pollution of the environment.
Patent DE-3025747-A1 (DE)
Title: Hot extrusion press mould cooling - has cooling spray nozzle incorporated in ejector head
Inventor: HERRMANN KARL-HEINZ ING GRAD
IPC: B21C29/04
Filed: 1980-07-08
Abstract: The press consists of frame (1), in which a ram (2) is vertically reciprocating with extruding tool (3) fitted on its bottom end. The lower part of the press is provided with a tool holding plate (4) accommodating mould (5). The base of the mould (5) is penetrated by the head part (6) of an ejector assembly, consisting of rod (7) reaching with its lower part into recess (8). The lower end of the rod (7) is connected to carrier plate (9) resting against the ejector plate (10). The ejector plate (10) is guided by the side walls of the recess (8) while reciprocating under the reciprocating action of piston rod (11), which is part of a power cylinder assembly. The press frame (1) has a connection (12) for cooling water and a connection (13) for compressed air. Both media pass through respective solenoid valves (14) and are joined together in mixing valve (15) connected with the solenoid valve set via flexible hoses, which allow reciprocating movement of the ejector assembly with the cooling in operation.
Patent DE-3029176-A1 (DE)
Title: Non-migratory phosphite polymer stabiliser - to protect packaging, etc., against heat and light, pref. based on di:hydroxy-aromatic cpds., with phosphorous tri:chloride
Inventor: MAYER NORBERT DIPL CHEM DR
IPC: C07F9/145
Filed: 1980-08-01
Abstract: Non-migratory phosphite stabiliser for polymers comprises one of the cpds. having formula (I) in which A is a radical of formula (II) or (III), where R is tert. butyl. tert. amyl, cycloalkyl having 5-6C atoms, 3-20C isoalkyl, 8-12C phenylisoalkyl or 6-10C aryl, and R1 is H or CH3, and B is -S-, -S2- or R2 and R3 are each radicals when they are H or a 1-12C alkyl, or represent a cycloalkane ring having 5-12C atoms, being connected by a common C atom, and n is a whole number from 2-500. The reaction can be brought about with phosphortrihalogenides in a molar ratio of 3:2 at 30-200 deg.C and an inert solvent and/or a catalyst may be present. The solvent can be xylene and the catalyst may be DMF or an N-heterocyclic base. The amt. of catalyst may be to the order of 0.1-5.0 wt.%. More pref., 0.001-5.0 wt.% halogen-free C2-C4 alpha olefines or vinyl homopolymers and copolymers contg. Cl (w.r.t. the wt. of polymer) are used to counteract the harmful effects of light and heat and may be in association with other heat and light stabilisers. Tbe stabilisers protect plastics against the harmful effects of light and heat, yet show no tendency to migrate, which can have deleterious effects in packaging, in heating oil tanks, etc.
Patent DE-3030702-A1 (DE)
Title: Electromagnetically operated protective switch - has contact carrier with parts made of harder material, to give combined heat resistance and strength
Inventor: SCHLAGER ROBERT
IPC: H01H50/58
Filed: 1980-08-14
Abstract: The contact carrier (10) mounted on top of a magnetic armature (11) of an electromagnetically operated protective switch has a base (10) made of thermoplastics material. An upper part has openings (14 to 17) covered with frames (18 to 21) of harder plastics material, holding the contacts. The two central frames (19,20) can be larger than the outer frames, and incorporate cross members (22,23), forming double frames. The use of two materials is intended to combine good heat resistant properties with sufficient strength to withstand vibration and shock under operating conditions. The base incorporates lugs (12,13) for mounting on the armature. Locking devices are incorporated inside to hold the sections together.
Patent DE-3031348-A1 (DE)
Title: Ethylene tetra:carboxylic acid tetra:alkyl ester prepn. - by opt. halogenated di:alkyl malonate or tetra:alkyl ethane tetra:carboxylate conversion in aq. base soln.
Inventor: RIECK HANS-PETER DIPL CHEM DR
IPC: C07C67/465
Filed: 1980-08-20
Abstract: In the prepn. of ethylene tetracarboxylic acid tetraalkyl esters, (I), by reacting opt. halogenated dialkyl malonates, (IIA), or opt. monohalogenated ethane-1,1,2,2,- tetracarboxylic acid tetraalkyl esters, (IIB), with bases and opt. sufficient halogenating agent to form (I), the bases are used as aq. lye solns. under the formation of a 2-phase system. (I) are intermediates for the prepn. of ethylene tetracarboxylic acid and its salts, used as builders in detergent compsns. Detergent compsn. builders can also be prepd. by epoxidising (I) with H2O2 and saponifying. The process is simple, economical and also allows the use of non-halogenated dialkyl malonates as starting materials.
Patent DE-3032647-A1 (DE)
Title: Welding wire feeder for rotating welding head - where feed rollers are supported by back-up roller increasing pressure on welding wire
Inventor: REEH HOLGER
IPC: B23K9/133
Filed: 1980-08-29
Abstract: The rotating head is connected to a holder for a spool of welding wire so the holder rotates together with the head. The wire is drawn off the spool by a driven roller (a) with a knurled periphery. Roller (a) works together with an idling roller (b) contg. a peripheral groove for the wire. Next to the knurled zone on roller (a) is at least one supporting ring in contact with a support roller (c), which is diametrically opposite roller (a). The supporting ring is pref. located between the knurled zone on roller (a) and its driving unit. The wire feeder has a small size, but a high pressure can be applied by roller (a) to the welding wire.
Patent DE-3036269-A1 (DE)
Title: Radiation converted into electrical energy by fluorescent stage - in heat transfer liquid circulating in internally reflecting space
Inventor: STREHLAU GERD
IPC: F24S23/00
Filed: 1980-09-26
Abstract: A device for capturing and converting light or thermal energy comprises a transparent casing, which constitutes the primary side of a heat exchanger and contains a liquid which itself contains fluorescent molecules; the light or other radiation falling on the container acts on the fluorescent molecules to produce light which is totally reflected and/or refracted inside the hollow container and is discharged at an opening to be converted directly into electrical energy. Preferably, the light leaving the opening is received on a solar cell or on a thermocouple for producing electrical energy. Preferred material for the casing is a polyacryl ester resin. This device enables energy to be effectively converted and directed towards an electrical source. Heat produced in the refraction and reflection within the hollow container serves to heat up the liquid, and is therefore utilised in the heat transfer circuit.
Patent DE-3037754-A1 (DE)
Title: High purity magnesium carbonate tri:hydrate prodn. - from water soluble magnesium salt and carbonate in mother liquor contg. crystals of prod.
Inventor: LOEBLICH KARL-RICHARD DR
IPC: C01F5/24
Filed: 1980-10-06
Abstract: In the prodn. of MgCO3.3H2O (I) by reacting water-soluble Mg salts (II) with alkali or ammonium carbonates (III) in aq. medium, (II) soln. and (III) soln. are added simultaneously at separate points to a mother liquor (IV) of compsn. corresp. to the stoichiometric conversion of the (II) and (III) solns. and contains min. 200 g crystalline (I)/l, with constant stirring. The mixt. is kept at a temp. of 35-45 deg.C and a pH below 10. The process is simple and gives (I) of better purity than usual in high throughput.
Patent DE-3039090-A1 (DE)
Title: Modified air supply to unloaded fuel injection engine - to prevent excessive under pressure in manifold and cylinders
Inventor: KRAEMER REINHARD ING GRAD
IPC: F02M69/28
Filed: 1980-10-16
Abstract: When the engine is being overrun or rapidly reduced to idle speed the absolute pressure in the inlet manifold and the cylinders can fall to a very low value. This can in consequence cause the engine to suck oil out of valve guides and past piston rings. The result is fouling of the engine and undesirable exhaust emissions. To prevent the low pressure the air regulator or throttle valve (7) and the air quantity measuring sensor (6) are bypassed (9). The bypass has an electrically operated valve (10,12), held closed by a spring, where it enters (11) the inlet manifold (8). Fuel and air flow are monitored and regulated by a controller (15). When the controller detects the condition referred to, which is caused by closing the throttle valve (7), the fuel injection (4,13) is shut off and the air bypass opened. The engine (1) suction is reduced.
Patent DE-3046025-A1 (DE)
Title: Drift mining conveyor rests on anchored carriage - having driven gear wheels engaging tooth racks on conveyor sides to move it forward
Inventor: KAUTER HANS
IPC: E21F13/06
Filed: 1980-12-06
Abstract: The (scraper chain) conveyor (12) is partic. intended for underground drift mining operations and has a mechanism (16) to move the conveyor in longitudinal direction. This mechanism comprises a carriage (20) which can be anchored in position and has a drive assembly (28) engaging a longitudinally extending element (24) on the side (19) of the conveyor. This element is a tooth rack meshing with a driven (29) gear wheel (30) of the assembly (28). Tooth racks (24) and drive assemblies (28) are pref. arranged to either side of the conveyor. The tooth racks may each consist of a U-section (26,27) whose flanges (26) carry longitudinally spaced bolts (25).