baber/WOPTO huggingface dataset:
Patent DE-2052410-A1 (DE)
Title: Solvent extraction - in multistage vertical extractor with mixing chambers outside vessel
IPC: B01D11/04
Filed: 1970-10-26
Abstract: A multi-stage vertical extractor for liquid-liquid extraction (solvent extraction) where the heavy phase flows downwards and the light phase upwards, comprising a mixer and separator in each stage, is constructed so that the separators of adjacent stages have lateral outlets on each side of the floor dividing them, the heavy phase from above the floor and the light phase from below the floor being separately removed and supplied to a mixing pump. By having the mixing chambers outside the vessel, the separator area can be increased for a given floor area, leading to improve throughput of the system.
Patent DE-2103197-A1 (DE)
Title: Antistatic photographic material
IPC: G03C1/89
Filed: 1971-01-23
Abstract: Antistatic photographic material has a silver halide emulsion layer and an antistatic layer consisting of a mixture or graft copolymer contg. (I) a polymer of olefinically unsatd. monomers contg. sulpho groups of m. wt. >=10,000, and (II) a polymer of m. wt. of >=10,000 contg. at least 50 mole % COOH-contg. monomers in free or neutralized form.
Patent DE-2133664-A1 (DE)
Title: Ski with interchangeable steel strips - having edges protected by polyurethane strips
Inventor: VOGEL RAIMUND W
IPC: A63C5/12
Filed: 1971-07-06
Abstract: The ski has a U shaped hollow profile formed by >=2 shells each having surface parts running along each ski side wall at a distance of 0.2 mm from each other and bonded together by a shock absorbing plastic, with steel edge profiles arranged at the joining point of both shells according to parent patent in which the steel edge profiles are strips 0.1 mm thick and fastened in the plane of the gliding surface so that the outer edge of the steel strip projects over the side walls by 3 mm. Pref. polyurethane strips protect the projecting steel strips on the opposite side to the gliding surface along the ski sides and are fastened to the ski walls.
Patent DE-2143982-A1 (DE)
Title: Double fabric layer - with intermediate cells can be rolled flat for applying plastics coating
Inventor: NEIDHARDT HELMUT DIPL CHEM DR
IPC: A47C27/08
Filed: 1971-09-02
Abstract: A plastics-coated, double-layer fabric strip or sheet has a number of open or closed cells between the two layers; the two woven layers are held together by auxiliary fibres, weaker than the warp and woof threads, over part or the whole of their area; in addition they are additionally connected together by threads from the warp and woof, using weaving techniques, to provide a permanent connection. Pref., the weaker, auxiliary fibres are temporary and hold the layers tightly connected together so that they can be rolled flat for the application of the plastics coating. After this, the two layers may be separated slightly, still held together by the permanent binding threads, to constitute between them cells containing air, gases, expanded plastics etc., e.g. for boats, floats inflatable tents.
Patent DE-2237037-A1 (DE)
Title: O-phenyl alkane phosphonothioamidates - with insecticidal and acaricidal activity
Inventor: SCHRADER GERHARD DR
IPC: C07F9/44
Filed: 1972-07-28
Abstract: Cpds. of formula (I): (where R is lower alkyl; each X is Cl, Me or MeS; n = 1 or 2) have insecticidal and acaricidal activity. They are pref. prepd. by reacting the corresp. O-phenyl alkanephosphonothioic acid halide with NH3.
Patent DE-2237053-A1 (DE)
Title: 5-Nitrofurfural acetal antimicrobials - with anti-bacterial and fungicidal activity
Inventor: ANDREE HANS DIPL CHEM DR
IPC: C07D407/04
Filed: 1972-07-28
Abstract: Title cpds of formula (I): (where R1 and R4 are H, or 1-12C hydrocarbyl, R2 and R3 are H, 1-4C hydrocarbyl NO2,Cl, or Br, and n is 0 or 1) and are used e.g. in cleansing products such as bath prepn soaps, deodorants etc. as antimicrobial cleansing agents in public baths, dairies or breweries, and as preservatives for cosmetics, glues, suppositories, emulsion paints and metal-working oils.
Patent DE-2261556-A1 (DE)
Title: Continuous effluent purificn - by flocculation, rapid coagulation of flocs, running off clear water and dewatering flocs
Inventor: NAGAI MASAO
IPC: C02F1/52
Filed: 1972-12-15
Abstract: Appts for the continuous purificn of a soln e.g. coming from a gravel bed comprises (a) a mixer for mixing the soln with a flocculating agent. (b) a flocculating vessel in which flocs are produced by rapid coagulation in the soln from the mixer (c) a settling vessel with an overflow weir for excess liq at its upper edge, in which the coagulated flocs settel out and the clarified liq overflows (d) a conveyor for the scooping up and dewatering of the flocs in the settling vessel by means of buckets with wire mesh zones, distributed at pre-determined distances over the whole length of an endless belt of chain running over driven and non-driven pulleys, delivering dewatered flocs to a sludge collecting vessel.
Patent DE-2265032-A1 (DE)
Title: High temp reactor - technique for stopping using post generation heat
IPC: G21C7/00
Filed: 1972-04-13
Abstract: Process for stopping a high temp reactor is initiated by rise of the mean core temp due to post-generation heat. More esp. the take-off of power is first stopped and thereafter metered removal of post generation heat is carried out.
Patent DE-2334233-A1 (DE)
Title: Ball segment type axial ring piston motor - for operations with pressure increase, pressure reduction and turning momentum transfer principle
Inventor: WANKE WILHELM
IPC: F01C3/06
Filed: 1973-07-05
Abstract: Ball segment axial ring piston motor with laminations rigidly located in the centre shaft for operating with pressure increase, pressure reduction and transmission of turning moment. The ball segment axial ring piston is inclined towards the outer housing and the centre shaft with the focal point of the symmetric lines in the centre point with the three sections producing a geometric guide during a rotation of the ball segment axial ring piston causing an equal narrowing of the working space between the axial ring piston outer housing and centre shaft with large bearing followed by an equal widening. The axial ring piston has recesses corresponding to the fixed laminations which subdivides the ring shaped working space into radial chambers creating exactly delimited working chambers over the circumference of the motor.
Patent DE-2336535-A1 (DE)
Title: Lawn edging strip - horizontal part flush with surface and traversable by lawnmower
Inventor: HARTMANN ARTUR
IPC: A01G9/28
Filed: 1973-07-18
Abstract: A lawn edging strip of plastics, stone or concrete, can be L shape or with a vertical arm from which extends, lower down, a horizontal arm, the horizontal portion in either case being flush with the level of the lawn. When made of plastics strip, part is split so that a portion can be bent outwards to provide the horizontal surface. This may be held down by spikes. Alternatively the strip may be slit twice, to provide two vertical flaps connected by a horizontal portion.
Patent DE-2338663-A1 (DE)
Title: Reduction of iron ore in fluidised beds - with prevention of agglomeration using a mixt. of ores with different origins
Inventor: WENZEL WERNER PROF DR-ING
IPC: C21B13/00
Filed: 1973-07-31
Abstract: To avoid sticking or choking when using ores with grains of 0.1-2 mm, a mixt. of ores is used in which the ores differ in origin and/or pre-treatment. A pref. mixt. consists of Itabira over and Venezuela ore, used in a ration between 30:70 and 70:30, esp. 50:50; alternatively, a mixt. of Venezuela ore and Kiruna ore can be used in the same proportions. The advantage of this process is that sticking is avoided at practically to additional cost.
Patent DE-2346190-A1 (DE)
Title: Brushless sync. machine excitation system - has rotary rectifier and transformer winding around poles to generate extra excitation current
Inventor: GUENTNER HERWIG DIPL ING
IPC: H02P9/30
Filed: 1973-09-13
Abstract: The excitation system for a brushless synchronous machine has the rotor windings supplying the synchronous machine excitation windings over a rotary rectifier. The pole system is used as a transformer to generate the additional current needed to excite the machine. The rectifier anti-parallel diodes are connected at one terminal to this transformer separate windings which loop around the stator poles. Each phase line is coupled to one end of two transformer windings, whilst the opposite ends of these windings are connected over the oppositely-poled diodes to one machine star-coupled stator windings.
Patent DE-2348721-A1 (DE)
Title: Railway radio signal warning system - has track and vehicle-mounted transmitters and receivers signalling level-crossing hazards
Inventor: HALL HEINRICH
IPC: B61L29/24
Filed: 1973-09-28
Abstract: Electronic signalling apparatus can be mounted on locomotives and other vehicles, or at tracks, signal installations or stations, in contact with vehicles approaching level-crossings and similar hazards. Radio or electronic waves or ultrasonic signals can be converted into acoustic or light signal form, for a determined time, for vehicles, whether known or unknown, which are approaching the crossing. The receiver installation may be fitted to the vehicle instrument panel, picking up not only normal waves but also special waves for this purpose, in audio or visual form. An engine driver may be automatically warned by light of the beginning of a signal.
Patent DE-2365134-A1 (DE)
Title: Powdery polyvinyl chloride contg. no plasticiser - obtd by polymerisation in presence of lubricant and adding other additives after polymerisation
Inventor: GRUENEWALD WALTER DIPL CHEM DR
IPC: C08L27/06
Filed: 1973-12-29
Abstract: A finely divided, powdery vinyl chloride (co)polymer, free from or poor in softener, and ready for processing, with grain size 0.3 mm, is prepd. by polymerisation in absence of dyes, stabiliser(s), pigment(s) and fillers, at 30-75 degrees C (45-65 degrees C), in presence of a catalyst or catalyst system, pref. a peroxy dicarbonate, in a polymerisation system contg. an aq. and an organic phase, and in presence of a suspension aid, with addn. before or during the polymerisation of 0.01-3 (0.1-0.6) wt. % w.r.t (co)polymer, of a lubricant or lubricant mixt. which melts at 150 degrees C; other additives and/or processing aids are added to the polymer after sepn. by filtration from the reaction medium. The necessity for mixing the lubricant into the PVC at > the m. pt. of the lubricant is avoided, polymerisation is not retarded by the additive, the waste water does not contain Pb, a smaller amt. of lubricant can be used and the final mixing time is reduced by 10-50%. The copolymers are used for prodn. of profiles and moulded goods, esp. tubes.
Patent DE-2401044-A1 (DE)
Title: Control for thyristor uses capacitor as firing energy store - to supply current to gate when thyristor approaches turn-off point
Inventor: ZIMMERMANN KARL HEINZ DIPL PHY
IPC: H02M5/257
Filed: 1974-01-10
Abstract: The control circuit, for a thyristor, has the thyristor coupled in series with a resistor across the bridge rectifier output. The thyristor gate is connected over a switch to the storage capacitor. With the switch open, the capacitor is charged over a resistor. When the charge has reached a given level the switch is closed and the thyristor triggers. During most of a half-period the capacitor is being charged by current from the gate (thyristor on), whilst at the end of each half-period it supplies current back to the gate (thyristor about to turn off) and thereby triggers the thyristor immediately so that the latter remains on as long as the switch is closed.
Patent DE-2402766-A1 (DE)
Title: Cleaning compsn for silver articles - consists of a slurry of aluminium powder and is non-toxic and non-polluting
Inventor: TASCHNER GEB KILGERT WALBURGA
IPC: C09G1/02
Filed: 1974-01-22
Abstract: Silver or silver-plated articles are cleaned with a neutral or acid aqs. slurry of Al in the presence of electrolytes. The finely divided Al may be dry-mixed with the electrolyte and the aqs. electrolyte only added when the compsn. is reqd.
Patent DE-2405596-A1 (DE)
Title: Sturdy plastics picnic case also acting as seat - has heat-insulating inside lining with supporting strips for strength
Inventor: PERLBACH DIETRICH
IPC: A45C11/20
Filed: 1974-02-06
Abstract: The picnic case has an inner wall completely covering the inside of the case, with the cavity between the inner and outer walls being heat insulated with layers of fibrous insulating material and aluminium wadding as well as cotton wool and cork foils. Several inner support struts are provided and the inner side walls and inner base are preferably provided with aluminium plates and thermoplastics material. The lid of the picnic case can be provided on the inside with suitable holders for bottles or vacuum flasks whilst cutlery and crockery holders can be provided at the sides.
Patent DE-2407843-A1 (DE)
Title: Spray chambers for liq treatment, esp etching - using oscillating spraying frame mounted on telescopic tubes made of plastic
Inventor: PILL ADAM
IPC: C23F1/08
Filed: 1974-02-19
Abstract: A device for carrying out liq. treatment, esp. for the etching of objects such as printed circuit boards, consists of a chamber contg. >=1 oscillating spraying frame constructed from tubes fitted with spray-jets for a liq. under pressure. At least one stationary tube is provided, for feeding the liq., on which one of the tubes forming the spraying frame is mounted in a telescopic manner, the liq. passing through the two telescopic tubes. Both parts of each telescopic tube assembly, and the glide rings on which the oscillating tube slides, are pref. made of plastic, esp. PVC, PTFE or polyamides. Permits the oscillation of the spraying frame without the use of flexible tubes which are subject to rapid wear.
Patent DE-2410768-A1 (DE)
Title: Solenoid type pump with reciprocating piston - has end fittings in central bore and pump chamber with constant output
Inventor: MIKKELSEN BJARNE LINDBERG
IPC: F04B17/04
Filed: 1974-03-07
Abstract: The pump solenoid has a central bore which accommodates two separate core components fitted into each of the solenoid bore. The core sections are separated by nonmagnetic material. A spring loaded piston reciprocates within the central bore forming the pump cylinder. Pump axial flow produces a flow rate which is independent of the power supply voltage within a wide range and it operates with low noise. The end face of the piston is near the end face of the first core when the piston is at rest. The gap between the end faces is adjusted by a plug which modifies the force of the spring acting on the piston. The corners of the entry to the gap chamber and of the piston end face can be chamfered. The solenoid is powered by a half wave rectified alternating current.
Patent DE-2411095-A1 (DE)
Title: Electric razor with hollow cylinder cutter - comprises wire windings whose inner eccentricity gives lowest cross-section near cutting head
Inventor: GLASBRENNER ANDREAS
IPC: B26B19/16
Filed: 1974-03-08
Abstract: A screw shaped blade is coupled to the driving shaft and fitted inside the hollow cylinder which is composed of screw-form arranged wire with adjacent windings. The hollow cylinder defined by the inside of the wire windings is eccentric to the outside of the wire coiling, and is formed by eccentric loops of the wire coiling. Thus, in the region of the cutting head, the wire cross section is at its most reduced, and the wire has such a cross section that the contact points between the windings are located inside the outer circumference of the coil and the cross section reduces outwards from these contact points.
Patent DE-2417735-A1 (DE)
Title: Remote control model auto gyro - has additional rotor head adjusting fins attached to the flexible driveshaft
Inventor: HEINELT ADOLF
IPC: A63H27/133
Filed: 1974-04-11
Abstract: A remote control model autogyro has a rotor head which has two additional stabilising fins attached to a flexible drive shaft and which rotate parallel to the rotor head plane. Final control elements are in contact with the drive shaft and the rotor head above the gimbal mounting is a neutral, pref. labile equilibrium condition, whilst the drive shaft rotates through the middle point of the gimbal mounting in conventional fashion. The final control surface elements are used to vary the angle of the rotor head plane positively or negatively with respect to the fuselage axes.
Patent DE-2420750-A1 (DE)
Title: Mechanical digital setting device for hydraulic element - has displacement bodies arranged in rows in housing which can be moved
Inventor: STUMPMEIER FRITZ
IPC: F15B11/18
Filed: 1974-04-29
Abstract: Mechanical digital setting device for the multi-stage adjustment of hydraulic control and setting elements where displacement bodies are arranged within a housing in a row, displaced with respect to each other and supporting each other. The bodies are tensioned in the longitudinal direction and alternatively lie on a fixed guide path and on opposite guide faces. Each guide face can be adjusted by signal generators towards the guide path and the adjustment of at least one body effects a length change of the row of displaced bodies. One end body is then supported on an output setting component which is moved in the row longitudinal direction and the other end body is supported on a stop.
Patent DE-2429969-A1 (DE)
Title: Electrostatic colour copier with simplified cycle - transfers developed separation images to collecting drum before contact printing and heat fixing on paper
Inventor: KNECHTEL WILHELM
IPC: G03G15/01
Filed: 1974-06-21
Abstract: The copier uses a photoreceptor drum coated with cadmium sulphide or a similar material. The separation colour images are exposed in sequence through their own separately angled gratings or raster plates. The developed images are then transferred and superimposed in register on a second collecting drum. The combined image is finally contact printed from the second drum onto the copy paper and simultaneously fixed by heat. The system reduces the complexity and number of stages required and needs fewer synchronising systems while producing good definition and colour rendering.
Patent DE-2437327-A1 (DE)
Title: Key-operated input unit for typewriter, calculator etc - enables more coding rails to be incorporated in given space
Inventor: THEILEN ROLF
IPC: B41J7/66
Filed: 1974-08-02
Abstract: The input unit has intermediary levers (2) with noses, tongues or similar projections which interact with a coding rail (3). In order to reduce the distance between the noses (1) on the levers, these noses alternately interact with associated coding rails in two different planes which are parallel to the direction of movement of the intermediary levers. More specifically, two such planes are provided whereby the distance between the coding rails is halved. The nose is to be seen as moving from and to a plane behind the plane of the drawing alternately with a plane in front of the drawing.
Patent DE-2451815-A1 (DE)
Title: Connection for two angle components - involves lobes cut in sides of section that locate in recesses in other component
Inventor: NEUSCHAEFER-RUBE KARL-REINHARD
IPC: E06B3/968
Filed: 1974-10-31
Abstract: The design is for profile sections with an angle design. The sections can be made from extruded aluminium, metal, plastic, wood or wood type material. The advantage claimed is that the connector has general application and is easy and quick to manufacture and fit. The shank ends of the angle section have lobes that project inwards and locate or rest in undercut grooves in the profile section. The lobes stretch along the length of the surface of the angle section sides. The lobes can be connected together by a self tapping screw. A development of the design is an additional angled plate that fits in the saddle point between the two angle section sides.
Patent DE-2453127-A1 (DE)
Title: Flow speed control of liquid through pipe - refrigerant applied to alter viscosity of fluid
Inventor: ELWOOD ALBERT A
IPC: F16L53/70
Filed: 1974-11-08
Abstract: The arrangement consists of a hollow mantel which is made up of two halves, split along the centreline and which are bolted together round the pipe through which the fluid to be controlled flows. The cooling medium which flows through the mantle can be liquid Nitrogen, liquid Helium or compressed carbon dioxide. Control equipment for the flow of the cooling media is provided. Due to the cooling, part of the liquid can solidify and thereby obstruct the flow of increase the viscosity of the medium which will also impede the flow. The cooling medium can also be mixed with the flow of liquid in the pipe in order to cool it directly. For this purpose, a plug is mounted in the pipe which can be pierced by means of an explosive device.
Patent DE-2507005-A1 (DE)
Title: Transistorised vehicle direction indicator circuit - has additional current control stage to monitor function of trailer indicators
Inventor: SEITTER WOLF
IPC: B60Q11/00
Filed: 1975-02-19
Abstract: The flasher circuit for the direction indicators has a single transistor switching circuit followed by a transistorised current monitoring stage which monitors the flasher current across a temperature stabilised resistor. If one or more of the flasher lamps fails then the reference bias on the frequency controlling capacitor is altered to produce a different rate of flashing. A second transistorised current control stage is added to monitor the trailer flasher indicators, via a time delay element. This second stage has a separate indicator lamp on the dashboard to operate if one of the trailer indicators has failed.
Patent DE-2510025-A1 (DE)
Title: Machine for topping root crops before lifting - collects and cleans tops of sugar beet suitable for forage or silage
Inventor: GLIFBERG NILS BERTIL
IPC: A01D33/06
Filed: 1975-03-07
Abstract: The frame (2) has a front attachment point (50) and a single rear wheel (5), adjustable for height (7). A central rotating shaft (15) driven from an outside power source, has at the front a wheel (14) with propeller type vanes (29) which chops off the green tops and induces a partially axial air flow. A cutter blade (23) removes further greenstuff and a deflector blade (21, 22, 24) directs this backwards to another wheel (13) fitted with paddle blades (30), which directs it into an outlet duct. The machine is shrouded in a circular casing with clearance below for beet tops. Height adjustment for fan wheels (11, 45, 31), cutter blade (16, 17, 18, 19) and deflector (20, 25, 26, 27) is incorporated.
Patent DE-2514948-A1 (DE)
Title: Drawer guide with end stop for heavy drawers - has protective guide ribs enclosing guide rollers allowing easy insertion of drawer
Inventor: GRASS ALFRED
IPC: A47B88/493
Filed: 1975-04-05
Abstract: The drawer guide for heavy drawers has lateral guide rails (3) and three guide rollers (12, 13, 14) journalled on the axles of a roller support (25), wherein an arm (33) pointing downwards to the plane of the displaceable guide rail (3) adjoins the angled end (32) bent up oqt of the plane of the track of the displaceable guide rail so as to form the end stop. The guide roller (24, 12, 12) are enclosed in the insert direction (45) on their perimeter by guide ribs (37) which are mounted on the roller support (25) and expand in wedge fashion towards the guide rollers in the insert direction. These guide ribs thereby serve to protect the guide rollers in the support (25) from damage by the end stop whilst the latter is extended by the arm (33) so that the angled end has no sharp edges.