baber/WOPTO huggingface dataset:
Patent DE-2708687-A1 (DE)
Title: Recovering yttrium from rare-earth metal mixts. - by adding specific amts. of an organic extn. agent and a salting out cpd. or thiocyanate
Inventor: ABRAMOV LEONID A
IPC: C01F17/10
Filed: 1977-02-28
Abstract: Yttrium recovery from aq. rare-earth metal (REM) chlorides soln. comprises mixing the soln. with (A) a neutral organic extn. agent and (B) a salting out agent (I) or thiocyanate (II) ions to form a raffinate contg. Y and as extract contg. the lanthanides. The raffinate contains 0.7-2.2 mole/l REM and 1.1-6 mole/l (I) or has a molar ratio of REM to (II) of 3.5:1-230:1. The extn. agent (A) is pref. a sulphoxide of m.wt. 129-244 in a non polar diluent pref. kerosene, a xylene or polyalkylbenzene. The salting out agent is pref. a chloride of Li, Mg, Ca or Al. The extn. is used in processing ores e.g. xenotime, parasite, and tailings from processing uranium raw materials.
Patent DE-2710367-A1 (DE)
Title: Washing machine front door - is made of two relatively adjustable panels by setting device to accommodate exchangeable decorative panels of different thickness
Inventor: KORNFELD HEINRICH
IPC: D06F39/14
Filed: 1977-03-10
Abstract: Laundry or dishwashing machine has the front door provided with decorative panel changing facilities to suit the kitchen colour scheme, in that the front door is composed of two panels, a front one and a rear one, respectively. The panels are attached to one another by setting devices for relative adjustment w.r.t. to a side frame member to cater for any thickness of decorative panel received between the member and the front panel. The front panel is supported by a screw forming part of the setting device and the rear panel is provided with a nut, which is concealed by a cover plate retained in a captive manner.
Patent DE-2712139-A1 (DE)
Title: Sodium percarbonate particles coated with dehydrated sodium perborate - useful as storage stable bleaching agent
Inventor: KLEBE HANS DR
IPC: C01B15/10
Filed: 1977-03-19
Abstract: Sodium percarbonate particles comprise a core of sodium percarborate coated with dehydrated sodium perborate (corresp. to formula NaBO2H2O2.3H2O). they are prepd. by moistening sodium percarbonate particles with water and coating with dehydrated sodium perborate. Sodium percarbonate is used as a bleaching agent alone or in washing compsns. It has the advantage of a higher active oxygen content and better solubility at 20 degrees C compared with sodium perborate. The prod. is relatively stable in a warm humid atmos. and at the same time preserves the rate at which it dissolved.
Patent DE-2729309-A1 (DE)
Title: Measuring appts. data processing circuit - converts analogue to digital signal and performs convolution operation
Inventor: WEVELSIEP KLAUS DIPL ING DR
IPC: A61B5/308
Filed: 1977-06-29
Abstract: A signal processing circuit includes a microprocessor (1), a read only memory program store (2) and an RAM intermediate store (3) for the necessary data volume. An active or passive low-pass filter network (4) having a cut-off frequency of less than half the sampling frequency of the arrangement and an 8-bit analogue/digital converter (5) are connected to the input. A further low-pass filter (7) and a digital/analogue converter (6) are connected to the output. The setting of an evaluation function is made by means of a numerical keyboard (8). Instead of software controlled operation, a hard-wired circuit (9) may be employed to serve as a convolution calculation network.
Patent DE-2734925-A1 (DE)
Title: Thermal power plant with added heat extraction facilities - uses separate closed circuit containing refrigerant to cool condensate
Inventor: SCHMIDT PETER ING GRAD
IPC: F01K23/04
Filed: 1977-08-03
Abstract: The thermal power plant with additional heat extraction facilities has a basically entirely conventional circuit. However the condenser and feed heater respectively reject heat to, and receive heat from, a second and third circuit, all three interlinking. Working fluids in the latter are two different refrigerants. The second circuit has two circulating pumps. One feeds parallel sets of evaporators and superheaters heated from the third circuit. The fluid then drives turbines, further energy being returned to the third circuit in another condenser. Pressure is restored to first condenser level by the second pump. A heat pump powers the third circuit. Control valves are fitted as necessary.
Patent DE-2738742-A1 (DE)
Title: Self-lubricating seal for master cylinder - with small leakage grooves in cylinder wall to allow fluid seepage and lubrication
Inventor: SCHANZ JOHANNES
IPC: F16J15/16
Filed: 1977-08-27
Abstract: The master brake cylinder has a double piston seal, with the outer seal (4) protecting a trapped volume (5) between the seals. The cylinder wall in the trapped volume has spiral grooves (9) to trap some hydraulic fluid for lubrication. The trapped fluid ensures that the outer seal does not dry out and wear away. The amount of fluid loss through the seapage into the grooves is too small to affect the safe operation of the master brake cylinder.
Patent DE-2754984-A1 (DE)
Title: Pipe union thrust load locking device - has face of clamping member coated with electrically insulating material
Inventor: SEILER GEORG
IPC: F16L37/092
Filed: 1977-12-09
Abstract: The locking device protects pipe unions against pull and thrust loads, being particularly for pipe mains of ductile cast iron. A smooth pipe end fits in a socket with a sealing ring between, secured by a screwed ring if necessary. Locking is by the internal teeth of a clamping member, engaging with the inserted pipe end and sliding or tilting in the socket by chamfered or radiused faces. One at least of the faces working on the clamping member (9) and socket or screwed ring (4) has a coating of electrically insulating material (15, 16) of high resistance to pressure.
Patent DE-2756240-A1 (DE)
Title: Safety valve for press fluid drive - has two bores accommodating plugs connected by passages crossing over each other
Inventor: RUCHSER ERICH DIPL ING
IPC: F16K31/02
Filed: 1977-12-16
Abstract: The safety valve is for mechanisms driven by a medium under pressure, particularly a press brake or clutch. Two individual valves in a housing are connected in parallel and typically solenoid operated, and each has a piston and a plug controlling the connection between the inlet, the mechanism served, and the return. The two plugs are each guided in a bore in the housing and the bores are interconnected by two passages crossing over each other. Each passage can run from the upstream end of one bore to the downstream one of the other, to a point short of the seat against which the respective plug works.
Patent DE-2809994-A1 (DE)
Title: Electronic safety circuit for gas or oil burner - has threshold circuit with capacitor and diode connected to pulse generator
Inventor: SUTTNER KARL
IPC: F23N5/24
Filed: 1978-03-08
Abstract: The electronic safety timing switching system used for gas or oil burners, has threshold switch connected to timing element. Output signal of the latter influences the actuation of fuel valve. Safety is ensured in case of defective operation or failure of one or more components and the existence of a flame cannot be misrepresented. The threshold switching system has pulse generator operating with a threshold signal at one threshold input and with a releasing signal from the releasing input. The threshold input is fed by a capacitor connected in series with a diode for charging. This capacitor can discharge only via threshold input of the pulse generator.
Patent DE-2810540-A1 (DE)
Title: Antibiotic polymyxin F - prepd. from Bacillus circulans ATCC No. 31228
Inventor: PARKER WILLIAM L
IPC: A61K38/00
Filed: 1978-03-10
Abstract: Antibiotic designated Polymixin F (I), and its acid addn. salts, are new. (I) consists of a mixt. of 3 basic peptides comprising 2,4-diamino butyric acid, threonine, serine, isoleucine, leucine and a mixt. of the acyl residues of 6-methyloctanoic, isooctanoic and octanoic acids in the approximate molar ratios 5:1:1:1:2:1. The analysis is C 49.68, H 8.05, N 16.13, Cl 10.96 for the (1:4) hydrochloride salt, and m.pt. is 213-219 degrees C in vacuo. (I) is produced by fermenting Bacillus circulans ATCC No. 31228 under submerged aerobic conditions in an aq. medium contg. assimilable C & N sources. Polymixin F is active against gram positive and gram negative bacteria. It has substantial activity against some strains that are resistant to Polymixin B.
Patent DE-2810665-A1 (DE)
Title: Electronic ignition system for IC engine - has threshold stage generating further closing angle when engine parameter exceeds given threshold
Inventor: SCHMIED HELMUT DIPL ING
IPC: F02P3/045
Filed: 1978-03-11
Abstract: The system has a generator connected to the crankshaft. It produces a signal representing a basic closing angle for a switch in the ignition coil primary circuit. There are devices for varying this angle in accordance with at least one operating parameter of the I.C. engine. At least one threshold stage (22) generates a further closing angle signal when the above parameter(s) exceed the threshold. It is, together with the basic closing angle signal applied to a logic stage (13), in order to produce an abrupt change of the effective closing angle.
Patent DE-2813272-A1 (DE)
Title: Automatic changer for lathe chuck jaws - has radial carrier guides and rack and pinion actuator to simultaneously feed jaws to scroll
Inventor: FRIEDRICH WILFRIED
IPC: B23B31/16
Filed: 1978-03-28
Abstract: The clamping jaws of a lathe clamping chuck are automatically changed. The clamping jaw carrier is moved to the clamping chuck for exchanging jaws on the chuck against the ones in the carrier. The chuck jaw guides on the changing arrangement (18) run in radial direction. The clamping jaw carrier (6) is held on a separate cross slide, moving on the bed guideways. The jaw transport mechanism is arranged in the guide of the jaw carrier. This mechanism is actuated by rack (16) driven pinion (14). All jaw transport pinions are brought into engagement with a central driving gear wheel (10).
Patent DE-2831677-A1 (DE)
Title: Thieno-pyridine hydroxy-propanolamine chloro-benzoate ester cpds. - with cardiovascular beta-blocking activity
Inventor: TROXLER FRANZ DR
IPC: C07D495/04
Filed: 1978-07-19
Abstract: Thieno-pyridine derivs. of formula (I) and their acid addn. salts are new. (I) are prepd. by esterification of 4-(3-tert-butylamino-2-hydroxypropoxy)-thieno 3,2-c pyridine-3-carbonitrile. (I) have strong and long-lasting cardiovascular beta-blocking activity.
Patent DE-2834545-A1 (DE)
Title: Automatic dynamic compander circuit - has second variable element regulated by same control voltage, and auxiliary voltage is added to reference voltages
Inventor: SCHROEDER ERNST DIPL ING
IPC: H03G7/00
Filed: 1978-08-07
Abstract: The compander has at least one variable control element varying the transmission function in the signal path. A branch circuit generates a control voltage. In comprises at least a further variable control element and a control voltage generator with a comparator for the AC voltage and reference voltages. The control voltage is also applied to the control element in the branch circuit for its control in the opposite sense. The control voltage generator (5) has at least one further control input (13), and an auxiliary voltage analogue to the DC control voltage (Ust) is added to at least one reference voltage and/or to the reference potentila of the AC voltage.
Patent DE-2852381-A1 (DE)
Title: Artificial kidney operating at low blood side pressure - ensures efficient ultrafiltration and greater security for patient
Inventor: KURATA MOTOJI
IPC: A61M1/14
Filed: 1978-12-04
Abstract: A dialysing film secured to a frame to which an impermeable plate is fixed with an inlet and outlet for blood, has also attached to it, a support plate with a number of holes in which there is an absorption agent. The absorption agent comprises for pref. a graft of acrylonitrile and maize starch, and the whole forms a blood dialysis apparatus which enables the artificial kidney to carry out its function of ultrafiltration very efficiently, whilst the pressure applied to the blood is relatively low.
Patent DE-2853807-A1 (DE)
Title: Servo-operated hydraulic pressure regulator valve - has continuous variation characteristic and is used for emergency braking of vehicle trailer
Inventor: FRITZMEIER AG LENZBURG SCHWEIZ
IPC: B60T13/14
Filed: 1978-12-13
Abstract: The valve has a cylindrical piston (20) which together with the cylinder wall defines stroke and return spaces (26 28) alternately connected to an output space (14) coupled to the load. A hydraulic control pressure is maintained in the control space in front of the piston (20) with the working cross-section at either end of the latter being different. The stroke and return spaces (26 28) are each coupled to the output space (14) via a throttle and the output space (14) is connected via a further throttle with the counter-press space (16) behind the piston (20). Pref. an axial pin (48) projects from the rear of the piston into the counter-press space (16) carrying a spring seating (46) acting between the pin (48) and the end of the counter-press space (16). The other end of the axial pin (48) fits into a bore (50) in the piston (20) connected via a throttle (52) with the return space (28).
Patent DE-2901701-A1 (DE)
Title: Balloon type occlusion instrument - has metal plug in forward end and closing flap formed at rear
Inventor: SERBINENKO FEDOR ANDREEVITSCH
IPC: A61B90/00
Filed: 1979-01-17
Abstract: The occlusion instrument is partic. for sealing off vessels in the brain. It has a thin-walled balloon of elastic material thickened at the forward and rear end, in whose self-sealing opening an elastic catheter is inserted to supply the filling agent. A metal plug (11) is inserted in the forward thickened portion of the balloon, while a flap is formed from the material of the balloon (8) at the rear thickened portion. This shuts off the opening on removal of the distal end of the catheter (10), which end has a retaining device of smaller diameter and greater elasticity than the main part of the catheter body.
Patent DE-2902161-A1 (DE)
Title: Vacuum cleaner with pedal and manually operated pushbutton switch - has parallel circuit connection incorporated in control circuit of motor and relay which switches brushes (NL 22.7.80)
Inventor: HUETTEMANN WILFRIED DIPL ING
IPC: A47L9/28
Filed: 1979-01-20
Abstract: The vacuum cleaner has a suction nozzle with or without motor-driven brushes. It is linked to the motor housing via a flexible hose which can be divided into sections. The motor housing has a starting and stopping pedal switch for switching on the suction units and if necessary the electric brush. The vacuum cleaner can be switched on both from the handle or from the motor housing in any order. The switch (5) attached to the housing (2) of the motor is connected in parallel with a second switch (12) on the rigid section (9) of the suction hose (6). Both the switches are incorporated in the control circuit of a suction blower motor and a relay (13) which switches the brushes.
Patent DE-2906419-A1 (DE)
Title: Cellar window jamb construction - includes fittings for light well retaining wall and has end sunken cut=outs to hold well ring fixtures
Inventor: STOECKER KARL
IPC: E04F17/06
Filed: 1979-02-20
Abstract: Fixture media to accommodate light well rings are initially available in the window frame jamb. They are made of concrete or other suitable materials and are used pref. in a cellar. Sunken cutouts (3) are incorporated in the area of the end faces (1) of the jamb (2), to house fixing devices (4, 6). The front edge of these devices, pref. superimposed loops (4) or hooks, may be set back behind the visible surface at least to the extent of corrosion thickness. The fixing devices may also include hollow bars. The fixing devices can be concealed if light well rings are not fitted. The purpose of the light well rings is to act as a retaining wall.
Patent DE-2908003-A1 (DE)
Title: Dry absorption bonding of harmful impurities in waste gas - where rotary milling drum is used to ensure efficient reaction of absorbent with impurities
Inventor: RASCH RUDOLF DIPL ING
IPC: B01D53/68
Filed: 1979-03-01
Abstract: The gas is produced esp. by combustion plants, and an additive, e.g. CaCO3 is added to the gas so the impurities are absorbed by the additive. The mixt. of additive and gas is fed through a drum which rotates on a horizontal axis and which contains milling balls. The pref. drum has an axial channel (16) surrounded by an annular reaction channel (18) contg. the balls, both channels contg. gas inlet or exit holes; and channel (18) is surrounded by an outer ring channel (20) employed as a gas inlet or outlet. The bars are pref. made of hard cast iron; sintered alumina; porcelain; or flint, and are 3-15 cm dia. The gas inlet may be formed by either channel (16) or channel (20). Used for waste gases contg. SOx, HCl, HF, etc. where the additive is esp. CaCO3, but may be dolomite, CaO, Ca(OH)2, MgO, Al2O3.
Patent DE-2909683-A1 (DE)
Title: Wall or floor tile laying aid - has adjustable supports and elastic clamp on one of two corner stops
Inventor: BRUECK GEB LANGENBACH LORE
IPC: E04F21/18
Filed: 1979-03-12
Abstract: A panel or frame-shaped support component with a handle on its rear side, is used in laying tiles on walls and floors etc. On at least two opposite corners, it is fitted with forward-protruding aligning stops for a tile. One forms an elastically stressed clamp with similarly protruding spacers as joint-stops. It also has continuously adjustable support members for level setting. This enables laymen to lay tiles accurately over wide areas.
Patent DE-2914118-A1 (DE)
Title: Bearing for vehicle scissor jack - has load head and bearing body supported on curved ends of arm flanges
Inventor: HAFNER FRANZ
IPC: B66F3/12
Filed: 1979-04-07
Abstract: The vehicle jack bearing accommodates a tilting load-supporting head on an arm or scissors mechanism and/or the bearing body of a screwed spindle turned by hand crank at the top end of a column in order to turn the arm on the column. The arm or scissors members are of channel section, the head and bearing body tilting on transverse axes on the section flanges. The head and the bearing body fit over the end portions (48) of the flanges so as to tilt on them. The end edges (66) of these flanges are curved, support faces (66) on head and body bearing against them.
Patent DE-2916181-A1 (DE)
Title: IC engine with second order counter balancing - has balance shafts and intermediate gear in bearings in main bearing gap
Inventor: ZEILINGER KARL
IPC: F16F15/26
Filed: 1979-04-21
Abstract: The ic engine with second-order weight counterbalancing has two balance shafts with balance weights on opposite sides of the crankshaft, one gear-driven directly from the latter and the other via an intermediate gear. Both balance shafts (6, 7) with their gears (10, 12) together with the intermediate gear (11) work in bearings in a bearing cap (4) for the crankshaft (2). The directly-driven balance shaft and the intermediate gear can be at the same level in the cap the other balance shaft being above the intermediate gear.
Patent DE-2916842-A1 (DE)
Title: Pedal driven child's vehicle - has forward chain drive gear change, including freewheel drive on backward pedalling
Inventor: SCHELLACK HANS-DIETER
IPC: B62M9/04
Filed: 1979-04-26
Abstract: The child's vehicle has a tubular frame and a pedal driven chain drive for the rear axle hub. A gear selector operates on the hub gear change with the lowest ratio, having a free-wheel drive so that the vehicle can be reversed by pedalling backwards. The other gear ratios operate only forwards, with a free-wheel effect to allow coasting. The first forward ratio and the direct drive are situated each side of a neutral setting. The vehicle is lightweight and easily controlled.
Patent DE-2917514-A1 (DE)
Title: Electronic recording of sales orders - has switches operated by customer-operated key allowing entry of data onto card and into memory
Inventor: GRESAK STANISLAV
IPC: G07G1/12
Filed: 1979-04-30
Abstract: A key-operated unit allows a customer, e.g. in an hotel, to use a key to place the order and have the price recorded on a card. The key is wedge shaped and insertion in a slot causes a pivoted lever to move against a spring. A coupled lever causes a numbr of indentifying switches to be triggered. The tip of the key also causes a battery of contacts to be activated to allow the indicated price to be entered into a memory and onto the card.
Patent DE-2920836-A1 (DE)
Title: Loudspeaker fastening for car - has clamping ring with bayonet sprung tags to grip underside of speaker grille
Inventor: BUTZ EUGEN OTTO
IPC: H04R1/02
Filed: 1979-05-23
Abstract: The flush mounting for a loudspeaker on the parcel shelf of a car has a fitting ring (17) inserted into the hole and providing a locating flange for the speaker grille (10). The fitting ring serves to clamp the speaker mounting inside the ring, using spring-loaded bayonet clamps (19). The speaker is clamped between the grille and the fitting ring with a simple twist movement. It required no special tools or dexterity to fit or remove.
Patent DE-2938981-A1 (DE)
Inventor: LECHNER ROBERT DIPL ING
IPC: H04Q3/00
Filed: 1979-09-26
Abstract: The circuit arrangement monitors operating conditions of consecutively sampled direct current devices. The operating conditions are represented by different potentials occurring at a sampling connector of each different direct current device. A selector unit has parallel signal inputs, each of which inputs is connected to a respective sampling point of a DC device. A comparator is coupled by a first input to a reference voltage source and by a second input to the output of the selector unit. An output of the comparator is connected to a shift register buffering the output signals of the comparator for one monitoring cycle. The selector unit and the shift register are commonly controlled for synchronous selecting operation and shifting, respectively. There is arranged a feedback network between the output of the shift register and the first input of the comparator for superposing a positive feedback signal on the reference voltage.
Patent DE-2940334-A1 (DE)
Title: Methanation of synthesis gas contg. excess hydrogen - with product separation by adsorption or liquefaction
Inventor: WATSON ALLAN DIPL CHEM DR RER
IPC: C07C1/02
Filed: 1979-10-04
Abstract: Improvements are claimed in the catalytic conversion of synthesis gas (essentially H2 + carbon oxides) to CH4 at high temp. and pressure. Excess H2 is present, and is removed from the reactor prod. by adsorption (e.g. pressure-swing adsorption) or by low-temp. fractionation before being recycled. The latter variant permits the use of synthesis gas contg. inert gases (e.g. N2,Ar) or S cpds. (e.g. COS, H2S), both of which are removed from the reactor prod. at low temp. It can also give CH4 in liq. form. A max of 2 reactors may be used, which may be isothermal or adiabatic or one of each. The excess H2 moderates the reaction exotherm and suppresses soot formation. Few reactors are required, e.g. 1 adiabatic reactor may give a CH4 yield of 99%.