baber/WOPTO huggingface dataset:
Patent DE-2736271-A1 (DE)
Title: Mixing gas into liquid - using air lift pump principle with venturi throat to induce movement and recycling in liquid esp. for flocculation or froth flotation
Inventor: KRAMPITZ JUERGEN ING GRAD
IPC: B01F3/04
Filed: 1977-08-11
Abstract: Gases can be mixed with liquids in a vessel by using a stand-pipe with a venturi throat into which the gas is injected at the base by a circular blowing ring with a row of holes. This operates as a mixing zone and leads into a venturi profile pipe. The liquid is accelerated through the throat and mixes in the wide section which follows. The pipe can be mounted vertically or at an angle. Its base can be at any height above the vessel base but its upper end is below the liquid surface. Used e.g. for flocculation or froth flotation processes and avoids the use of mechanical moving parts and the corrosion problems associated with these.
Patent DE-2747457-A1 (DE)
Title: Rotary tube oven - in which oven mantle is enclosed by a heat exchanger to permit utilisation of radiated heat
Inventor: FRIEDRICH KURT
IPC: F27B7/20
Filed: 1977-10-22
Abstract: New rotary tube oven (esp. a clinker, sinter or reduction oven) has a tubular oven mantle provided with a rotating mechanism, the mantle being wholly or partly enclosed by a heat-exchanger. Conventional rotary tube ovens operate at temp. of a few hundred degrees C, and this heat is generally lost to the atmosphere. Surrounding the oven mantle with a heat exchanger enables the heat to be recovered and put to use. A particular advantage is that heat exchangers can be placed around existing rotary tube ovens.
Patent DE-2752547-A1 (DE)
Title: Electron=optical spectrometer for charged particles - has two wire gauze electrodes, concave to particle source, and has third electrode with slot
Inventor: STAIB PHILIPPE DR
IPC: H01J49/48
Filed: 1977-11-24
Abstract: The spectrometer determines the energy of charged particles emitted by a particle source, and has two wire gauze electrodes at a distance from each other, concave towards the particle source. A third electrode is behind the above two, with a hole in it. A fourth electrode limits the space between the gauze electrodes, the third electrode and a particle detector. The third electrode (5) is impermeable to the particles except for a hole in the form of a slot (6). Both gauze electrodes (2, 3) as well as the third and fourth electrodes (5, 4) are rotationally symmetric. The voltage between the second and fourth electrodes, and also that between the third electrode and the fifth electrode (9) is variable.
Patent DE-2753363-A1 (DE)
Title: Flat segment angle pick-up with parallel faces - has hole forming pivot bearing and two knife edges equidistant from axis of hole
Inventor: ZANIER ADRIANO
IPC: G01B3/00
Filed: 1977-11-30
Abstract: The flat-segment angle pick-up with parallel faces has a hole (8) forming a pivot bearing, machined perpendicular to these faces. Two knife-edges (9, 10) are positioned at equal distances from the axis of the hole and at a given angular separation w.r.t. this axis. The outline is partially limited by the arc of a circle whose centre is on the axis of the pivot hole and whose radius is equal to the distance between this axis and the two knife edges. The knife edges are inscribed within this outline and constitute the external limits.
Patent DE-2800428-A1 (DE)
Title: Easily cleaned rotary pump for oily or pasty products - has rotor forming annular chamber with housing and guide positively retracting blades
Inventor: GROSS HANS-JOACHIM DIPL ING
IPC: F01C21/08
Filed: 1978-01-05
Abstract: The rotary pump is designed for easy cleaning, its rotor working in a round housing and containing radial slots at intervals accommodating sliding vanes, pressed by centrifugal force against the housing wall. Inlet and outlet unions on the housing are shut off from each other by a compression body. The rotor (13) runs centrally in bearings in the housing (10), forming with it an annular chamber (17) pref. of circular section. The vanes (45) are shaped at their free ends to fit the chamber cross-section and have a positive guide (47) retracting them into their slots (42) before reaching the compression body (21).
Patent DE-2805418-A1 (DE)
Title: Liq. cooled IC engine - has heat exchanger in closed coolant circuit and at least partly cooled by closed refrigerant circuit
Inventor: JAUSS ALWIN
IPC: F25B27/02
Filed: 1978-02-09
Abstract: The cooling system is intended for a liquid-cooled combustion engine in which the coolant moves in a closed circuit through the engine block and a cooler (1). The cooler is, at least partly, arranged in a refrigerant circuit (11, 13, 15, 7). The cooler may contain the evaporator (7) of a refrigerant circuit whose condenser (13) is cooled by ambient air. The heat exchanging surfaces (4) of the evaporator may be so arranged relative to the heat exchanging surfaces (4) of a conventional engine water cooler (1) that heat is dissipated to the air supplied by the cooling fan and ram effect as well as to the refrigerant.
Patent DE-2806846-A1 (DE)
Title: Measuring curves evaluating appts. - has differentiating elements processing electrical signals at appts. input for curves of higher order
Inventor: TALSKY GERHARD DIPL CHEM DR RE
IPC: G06G7/48
Filed: 1978-02-17
Abstract: The apparatus for evaluating measuring curves is used especially for the evaluation of spectrophotometric and spectroscopic curves. In front of each of its differentiating elements there is an impedance transducer with a high-resistance input and a low-resistance output. Between the differentiating elements connected in series there is at least one low-pass filter or damping element. An amplifier may be inserted in front of the first differentiating element.
Patent DE-2806965-A1 (DE)
Title: Rotary sliding vane pump - has sprung adjusting piston balanced by hydraulic force to maintain required delivery characteristics
Inventor: ARNOLD DIETER
IPC: F04C14/22
Filed: 1978-02-18
Abstract: The adjustable rotary sliding vane pump has an eccentric ring enclosing its rotor and including an adjusting piston which divides a cylinder into two chambers. The chamber which opposes the spring force acting against the piston is connected to a pressurised chamber within the pump. The second chamber is connected to a groove in the rotor and also to the pressurised opening by an adjustable throttle. This arrangement balances the hydraulic adjusting force and spring force for ensuring the required delivery and speed characteristics.
Patent DE-2808478-A1 (DE)
Title: Training appts. for tennis players - has cord attached to rotatable sphere to prevent entanglement with post
Inventor: SCHLEPHORST JOSEF CHRISTIAN
IPC: A63B69/00
Filed: 1978-02-28
Abstract: A training appts. for tennis players consists of a post built up from tubes (1) approx. two metres high and mounted on a stand. A small sphere (9) is mounted so that it is free to rotate on a pin (7) which projects from the top of the post. A cord (18) is attached by a swivel to a split pin fitted into a hole in the sphere (9). The other end of the cord is attached to a second swivel which is fixed to a tennis ball. This construction prevents the cord (18) winding itself around the post during use.
Patent DE-2811066-A1 (DE)
Title: Waterproof oxygen concn. detector - has oxygen ion conduction metal oxide producing EMF in accordance with difference between oxygen concn. in sample and in atmos.
Inventor: AKIYAMA YOSHINORI
IPC: G01N27/403
Filed: 1978-03-14
Abstract: The detector comprises an oxygen ion conduction metal oxide which produces an electromotive force in accordance with a different between an oxygen concn. in gas component in a gas under test such as exhaust gas from an IC engine of an automobile and an oxygen concn. in the atmos. The structure includes a coaxially arranged inner tube and an outer tube with the inner tube being housed in the outer tube with a water proof structure interposed therebetween. The inner tube constitutes a lead wire to be electrically connected to that one of two electrodes for taking out the electromotive force which is created. The outer tube serves to expose the inner electrode to the atmos. at a site such that water may not be splashed into the interior of the sensor.
Patent DE-2832447-A1 (DE)
Title: Pneumatic pressure switch suitable as tyre pressure monitor - has membrane clamped between flanges and in same plane as switch
Inventor: BURKEL RAINER DIPL ING
IPC: B60C23/04
Filed: 1978-07-24
Abstract: The membrane operated pressure switch for a pneumatic tyre monitor, or similar use, has the edge of the membrance circular flanges (29) and with the centre of the flat membrane over the switch contact. The whole membrane and the switch contact are in the same plane to form simple construction. The flanges have corresponding ridges and grooves to grip and stretch the membrane. The whole assembly is simple and requires little adjustment.
Patent DE-2832564-A1 (DE)
Title: Heat recovery from graphite furnaces - using recirculating coke as insulation material and passing this over or through heat exchangers and then returning it to furnace
Inventor: BURMEISTER ALEXANDER DIPL ING
IPC: F27D17/00
Filed: 1978-07-25
Abstract: The energy recovery system is for a graphite prodn. furnace having a core of carbon particles. This is surrounded by a layer of particulate insulation. After the carbon in the core has been converted to graphite, the insulation is recycled through heat exchangers to cool it. The heat released in the exchangers can then be used in another process. The cooled insulation is then returned to the furnace. Coke is a suitable insulating material and can be converted to producer gas or water gas in a reactor. Used for recovering heat from graphite furnaces. The cooling time of the furnace is significantly reduced and the heat recovered is used for process purposes.
Patent DE-2834578-A1 (DE)
Title: Tunnel or underground gallery drilling machine - has withdrawable support shields on transversely adjustable sliding carriages on interceptor
Inventor: STEUFMEHL WILLI
IPC: E21D9/10
Filed: 1978-08-07
Abstract: A machine unit equipped with drill head is mounted at the front end of the machine for driving tunnels, galleries or similar underground excavations. It also has a lengthways displaceable bracing unit, and an interceptor unit with support shields for pressing against, or withdrawal from, the tunnel walling, retractable by pressure medium assemblies against spring force. With support shield assemblies spaced at intervals along the length of the interceptor unit, there is at least one sliding carriage, transversely adjustable and bearing one or more support shields. There are pref. two such sliding carriages, diametrically opposed. This is adaptable in difficult working conditions, and variations in profile.
Patent DE-2835103-A1 (DE)
Title: Profiled rail with electrical conductors - has conductors on flat side in profiled rubber or plastic section
IPC: B60M1/30
Filed: 1978-08-10
Abstract: The profiled supporting rail with electrical conductors is particularly for travelling hoists. It comprises a steel body (5) with two or more conductors (4) on the flat side, inserted in a profiled section of rubber or plastic (7, 8). This is section also has a lengthwise groove accommodating control pieces (9). The conductors can be secured for their entire length by the rubber or plastic profiled section, which in turn fits in a dovetail-section length of profiled aluminium (6), no other fixing devices being used.
Patent DE-2839876-A1 (DE)
Title: Supply unit for telephony - applies bipolar ringing pulses to subscriber line using two pairs of transistors
Inventor: SONTHEIM JOHANN
IPC: H04M19/02
Filed: 1978-09-13
Abstract: The supply circuit passes bipolar ringing pulse sequences via subscriber wires to subscriber stations. Two further complementary transistors are connected to the DC supply poles and to the telephone wire, that is not connected to its adjacent first transistor (T1, T2). The first and further transistors are turned on alternately during ringing and therefore supply bipolar pulses to the subscriber line.
Patent DE-2840411-A1 (DE)
Title: Manually-powered planing hull - has pivoted arms projecting beyond stern and carrying transverse holder for flexible fins
Inventor: BOJAK KURT DIPL ING
IPC: B63H1/36
Filed: 1978-09-16
Abstract: The planning hull, partic. sailboard, propulsion system using muscle power has one or more substantially horizontal fins mounted by their leading edges. The fins are free to flex in a transverse holder between longitudinal arms on transverse pivots clamped to the board and projecting beyond the stern. The arms extend forwards from the pivots and have an upright stirrup linking them so that they are operable standing up facing forward. A central steadying bar from the pivot support fits into the keel board slot and carries the rudder shaft, running through the slot, and pedal.
Patent DE-2842243-A1 (DE)
Title: Hypolipaemic 5-substd. furan- and thiophene-2-carboxylic acid derivs. - prepd. e.g. by reacting phenol or thiophenol cpds. with 5-halomethyl-furan- or -thiophene-2-carboxylic acid cpds.
Inventor: WINKELMANN ERHARDT DIPL CHEM D
IPC: C07D333/38
Filed: 1978-09-28
Abstract: New furan- and thiophene-2-carboxylic acid derivs. are of formula (I): (where R' is halogen, CF3, alkyl, aralkyl, aryl, alkoxy, aralkoxy, aryloxy, alkylthio, arylthio, alkylsulphinyl, arylsulphinyl alkylsulphonyl, arylsulphonyl, alkylcarbonyl, arylcarbonyl or alkyloxycarbonyl, the alkyl groups being 1-6C, and the aryl residues opt. being substd. in the 2-,3- or 4-position by lower alkyl, lower alkoxy, lower alkylthio or halogen; R2 and R3 are H or R'; or R' + R2 is methylenedioxy; R4 and R5 are H or lower alkyl; R6 is H, lower alkyl or halogen; R7 is H, lower alkyl or alkali metal; and X and Z are O or S). (I) are hypolipaemic agents which reduce blood levels of low density lipoproteins (LPL) and very low density lipoproteins (VLPL) but only slightly lower (or even increase) blood levels of high density lipoproteins (HDL). They can thus be used in the treatment and propylaxis of atherosclerosis. Relative liever weight changes after administration of (I) are absent or only slight.
Patent DE-2842854-A1 (DE)
Title: Corrugated cardboard mfr. - with protective plastic coating bonded at same time as layers are bonded by adhesive
Inventor: SCHUH WALTER
IPC: B32B3/28
Filed: 1978-10-02
Abstract: In the mfr. of corrugated cardboard, provided with a protective plastic layer, the plastic film is bonded with the cardboard by thermal sealing at the same time as the corrugated web is secured to the carrier web by fluid adhesive. The layers to be bonded by fluid adhesive are fed in above the layer to be secured by thermal sealing. Pref. plastic material is a bonded polyethylene-paper film, partic. a polyethylene-ethylene copolymerisate/paper with the plastic layer having a low sealing temp. Process allows the plastic film to applied while the corrugated cardboard is mfd. in a single operation, without allowing any adhesive to come near the heated surface of the hot section of the machine.
Patent DE-2907302-A1 (DE)
Title: Defoamer comprising sulphonated petroleum oil - together with long chain alcohol and nonionic additive, for use in acid media
Inventor: SATTERWHITE WILLIAM A
IPC: B01D19/04
Filed: 1979-02-24
Abstract: Defoamer comprises 48.8 to 97.5 wt.% sulphonated petroleum oil, 1.2 to 48.8 wt.% of 4-20C alcohol and 0.1-50 wt.% pref. 1 to 8 wt.% of anionic additive R-O (R'-O)nR" where R' is hydrocarbyl, and R and R" are hydrocarbyl or hydroxyhydrocarbyl and n is 1 to 200. The ratio of alcohol to sulphonated oil is pref. 0.25 to 0.50:1. Prepn. comprises mixing the components and pref. also agitating for >=15 min. after adding the alcohol to disperse acid sludge. Used for controlling foam in high strength acid media. esp. in the digestion and concn. stages of wet-process phosphoric acid mfr. This defoamer is duperior to conventional defoamers on both a cost/ton P2O5 and a wt./ton P2O5 basis.
Patent DE-2908518-A1 (DE)
Title: Garden refuse grinding appts. - has rotating blades on inclined shaft working together with arc-shaped counter blade on hopper bottom
Inventor: WOLF WERNER
IPC: A01F29/02
Filed: 1979-03-05
Abstract: The garden refuse grinder has an electric motor (9) inside the cylindrical housing (1) with a hopper (14) fitted on top of the housing. The axis of the motor (9) is fitted an angle of 20 to 40 deg. to the vertical axis (5) of the housing. The shaft end (9a) of the electric motor is fitted with a set of blades (8) mounted on a blade head (17). the hopper (14) has one wall (14a) parallel with the inclined motor axis (7) forming a convergent feeding chamber (3). At the lower end of the chamber (3) an arc-shaped counter blade (30) is fitted to the cylindrical wall (1a) by bolts (31). Between the blade head (17) the motor shaft a slipping clutch is provided. The grinder rests on a foot (12c) and moves on wheels (12).
Patent DE-2914883-A1 (DE)
Title: Two speed gearbox for electric drills - has selection lever and overload coupling on drill spindle
Inventor: HOYER RUDOLF
IPC: B23B45/00
Filed: 1979-04-12
Abstract: The two speed gearbox is for electrical tools and esp. for drills. There is a selector lever for gearchange during idling or when the drill is stopped and there is an over lead coupling on the drill spindle. The gear for the second stage (fast gear) is fitted to a pick-up sleeve, which is combined with the drill spindle. It has a hub on which the spring loaded first gear is arranged and the two gears are connected by axially acting spring loaded balls. On its side facing the second gear, a flange shaped attachment at the pick-up sleeve contains coupling ratchets, which correspond with counter-ratchets on the opposite side of the second gear. The second gear also has selector gear with coupling claws which can move on a lay shaft.
Patent DE-2920123-A1 (DE)
Inventor: PECHHACKER HERBERT DIPL ING
IPC: B65G53/52
Filed: 1979-05-18
Abstract: The material is introduced intermittently and batchwise into a conveying line (5). The throughput of conveying air per unit time (actual value) is continuously recorded in the air feed line and compared with at least one predetermined adjustable limit value. When the limit value is reached, commands are issued to control the input of material into the conveyor line. The device possesses, in the compressed air line (9) upstream of the material discharge apparatus (2), a measuring device (12) for determining the throughput of conveying air. <IMAGE>
Patent DE-2924327-A1 (DE)
Title: Rotary furnace fire-proof outlet lining - is prefabricated and interchangeable with steel frame tamped with fireclay
IPC: F27B7/28
Filed: 1979-06-15
Abstract: The fireproof lining separates the drum outlets of a tubular rotary furnace from the cooling pipes. It comprises an interchangeable prefabricated component (9), with a steel frame (1) screwed into the outlet. Anchors are welded to the frame inside surface for tamping fireclay forming the outlet opening (10), with expansion joints (11) extending radially from the latter. At the collar edge this clay runs parallel to the outlet opening in the axial direction, while it converges inwards to the collar edge of the adjacent prefabricated component. The tapering chamber formed is tamped with fireproof material anchored to the drum, having expansion joints to the adjacent prefabricated parts.
Patent DE-2927362-A1 (DE)
Inventor: STERNISA DANILO ING GRAD
IPC: C09D5/00
Filed: 1979-07-06
Abstract: 1. Composite material for bodies or layers (10, 20) which have a highly water-resistant sliding or frictional surface and which contains an organic polymer and pulverulent inorganic glass, characterised in that the glass is distributed as a fine glass powder which was obtained by working up scrap glass and has a particle size of =< 20 mu m and embedded with each particular glass particle (12, 22) in the matrix (11, 21) formed by the organic polymer.
Patent DE-2929804-A1 (DE)
Inventor: KRATOCHWILLA HANS-MICHAEL
IPC: B08B9/035
Filed: 1979-07-23
Abstract: 1. A suction device for use in dentistry having a suction pump (1) to which is connected a suction line (2, 3) having a suction nozzle (5), for the removal by suction of liquid and solid particles with an interposed separating receptacle (4) which is designed as a cyclone precipitator and in which the particles which have been removed by suction are separated from the suction indraft, and which has a discharge channel (12, 49) which opens into a discharge line (17), characterised in that the discharge channel (12, 49) which leads from the separating receptacle (4) into the discharge line (47) contains an auxiliary pump (15, 50) which acts against the reduced pressure of the suction pump, and at a relatively higher pressure forces the particles which accumulate in the separating receptacle (4) into the discharge line (17).
Patent DE-2932512-A1 (DE)
Title: Spray nozzle for underground dust elimination - consists of concave disc, with central aperture, clamped in feed bore
Inventor: BRANDENBURG HELMUT ING GRAD
IPC: E21B10/60
Filed: 1979-08-10
Abstract: The spray nozzle is esp. for use with underground mining machinery, to eliminate dust. It is removably positioned within an enlarged section of the feed bore. The nozzle (1) consists of an elastic corrosion-proof disc, with a pref. central nozzle aperture (2). The disc is pre-formed, so as to be slightly concave. The diameter of the disc is larger than the diameter (4) of the section (5) of the feed bore (6), in which it is located. The disc is tensioned within the bore section, with a convexity facing into the bore interior.
Patent DE-2934444-A1 (DE)
Title: Immunisation method for sterilising malignant cells - use appts. to irradiate stained cells with yellow or blue laser light
Inventor: HANSCHMANN HORST
IPC: A61N5/067
Filed: 1979-08-25
Abstract: When sterilizing malignant cells which are to be used for immunization by injection, it is important that the cell walls are not damaged. This is accomplished in this invention by irradiating the malignant cells with yellow or blue laser photons. The laser is mirrored all round and is linked directly, via fluorescent channels, with a mirrored condenser with the same fluorescent media and a laser tube with a diameter of about 1cm. A concave mirror and lense system focus the rays to the required depth. Slits in the tube enable slides containing the cells to be inserted. Light meters control the exposure times. The cells are stained with saffron.
Patent DE-2934830-A1 (DE)
Title: False-twisting mechanism for draw-frame sliver - using counter-rotating twisting heads which may have additional drafting action
Inventor: SCHMID REINHOLD
IPC: D01H5/28
Filed: 1979-08-29
Abstract: Imparting false-twist to a draw frame sliver to improve cohesion utilises two counter-rotating twisting heads each with a roller nip which simultaneously twists and transports the sliver. The nip in the second twisting head is alternately released and restored to allow alternating twist to run into the delivered sliver. The second twisting head may have a higher rotation speed than the first, and the nip rollers may have a higher surface speed than those in the first head, giving an extra drafting action and inserting a slight true twist in the sliver. The twist improves the uniformity of the drafted sliver, consolidates the sliver to prevent irregularities being introduced in coiling, and improves its packing density. It allows the throughput speed of the machine to be considerably increased.