baber/WOPTO huggingface dataset:
Patent DE-2208477-A1 (DE)
Title: Neutralisation of waste gases using solid additives - prior to entry into gas washing plant
IPC: C10K1/00
Filed: 1972-02-23
Abstract: Acidic or alkaline additives are added to waste gas from industrial processes before the gases enter conventional scrubbing plants, in order to change the properties of the gas or the wash liquor, and esp. to effect neutralisation. The additive, which is normally a weak acid or alkali in powdered form, or as a soln. absorbed on e.g. Kieselguhr, is added in such proportions as to achieve complete or almost complete neutralisation. Process may be used in treatment of waste gases from, e.g., coal gasification, waste incineration, foundry furnaces, chemical plants. Corrosion in washing plant may be reduced over correction, e.g. from highly acidic to highly basic product, is presented; and the contaminating component can be recovered in conc. form if desired.
Patent DE-2209917-A1 (DE)
Title: Anode with electrolyte ducts - of widening cross-section to reduce diffusion flashover voltage by improved flow
Inventor: MUELLER JUERGEN DR
IPC: C25B11/03
Filed: 1972-03-02
Abstract: An electrode, esp. an anode, having ducts through it for the liquid electrolyte, has these ducts shaped so that they widen outwards towards a surface of the electrode, pref, as a conical or venturi-shaped outlet.
Patent DE-2213808-A1 (DE)
Title: 3-(4-(halophenyl) piperazinoalkyl) pyrazole prepn - as cns depressants
Inventor: LOEBICH FRIEDRICH DIPL CHEM DR
IPC: C07D403/06
Filed: 1972-03-22
Abstract: Cpds. and their addn. salts are of formula (I): (where R is H or 1-4c alkyl; n = 1-4; X is F, Cl or Br).
Patent DE-2240016-A1 (DE)
Title: Girdle type garment - having openable section for easier donning and doffing
Inventor: ROSNER LEONARD
IPC: A41C1/00
Filed: 1972-08-14
Abstract: The front rear and side sections of the girdle are sewn together so that the fabricated garment would completely encircle the wearer. One of these sections has an openable part. This may consist of a slit fitted at the edges with a slide-type fastener. Inside the slit and on view when this opens are two elastic panels which cross each other diagonally and are stitched to the side edges of the outer panel. In this way the present girdle overcomes the disadvantage of conventional garments in providing easy donning and doffing. This is accomplished by opening the slit and allowing the inner elastic panels to stretch.
Patent DE-2243861-A1 (DE)
Title: Biological sewage treatment - using pressurized mixing of raw sewage with activated sludge and air followed by expansion
Inventor: CSEPAI LUDWIG DIPL ING DR TECH
IPC: C02F3/26
Filed: 1972-09-07
Abstract: The activated sludge remains in the pressure vessel and is reused. At the start of the treatment cycle it is floating on a thin base layer of purified water left from a previous cycle above the drainage floor of the pressure vessel. The sewage after a preliminary sedimentation period is fed into the top of the pressure vessel and air under pressure injected at the same time. A floating stirrer assembly on top of the live sludge is then used to make an intimate mixture of all three components. A pressure relief valve is then opened at the top of the vessel and the mixture expands rapidly separating purified water from the mixture into the base part of the vessel whence it is drained through the floor grating, some sludge perhaps being extracted with it. Simple compact high efficiency plant esp. for apartment blocks etc.
Patent DE-2250975-A1 (DE)
Title: Antifoaming compsns. for aqs. systems - contg a carboxylic acid ester of hydroxyalkylated alkylphenols
Inventor: HEDTRICH HARTMANN
IPC: B01D19/04
Filed: 1972-10-18
Abstract: Carboxylic acid ester ingredient in compsns. for preventing or reducing foaming in aq. systems, e.g. cardboard, paper - and sugar mfr., consists of 5 - 30 C opt. satd. n - or iso - and/or cyclic mono - and/or dicarboxylic and/or hydroxycarboxylic acids esterified with hydroxyalkylated alkylphenols which contain 1 to 3 1-2 C alkyl gps. and are hydroxyalkylated with 1 - 20 moles ethylene -, propylene - and/or butylene oxide. Defoaming compsn. pref. contains also other defoaming agents, esp. liquid aliphatic hydrocarbons.
Patent DE-2305121-A1 (DE)
Title: Dispenser block of low-density polyethylene bags - produced by cutting streams of film and assembling into blocks
Inventor: LEHMACHER HANS
IPC: B31B160/10
Filed: 1973-02-02
Abstract: The streams of semi-tubular low density polyethylene film are passed intermittently through a welding/cutting station for the streams to be cut into lengths, to be assembled to be clamped in the vertical plane as a block. Process provides bags in a convenient form for dispensing, and can produce a number of blocks side by side, allowing the feed of a number of film streams.
Patent DE-2328586-A1 (DE)
Title: Pretensioned multipin bayonet connector - has spring-loaded ball and cup to engage and limit rotation of locking ring
Inventor: VETTER OTTOMAR H
IPC: H01R13/623
Filed: 1973-06-05
Abstract: Two mating male and female components form the multi-pin connector, the female tree part having a bell housing holding the socket pins, and a locking pin which is free to rotate around it. The depth of penetration of the male and female units is controlled by rotation of the locking ring which has a pair of inclined grooves around the inner wall into which engage a pair of radial pins on the male part. The insertion is limited by an arrangement whereby a ball, held captive in a hole in a flange on the body shell, meets a hole in a flange rotating with the locking ring. A spring strip pushes the ball partly into the hole, preventing further insertion of the plug.
Patent DE-2334176-A1 (DE)
Title: Injecting liquid in engine air intake - liquid supply tube projecting into airflow has orifices on low-pressure side
Inventor: STEPHENSON ROBERT ALAN
IPC: F02M25/00
Filed: 1973-07-05
Abstract: The orifices are arranged at an angle relative to the direction of the airflow in the intake duct such that an underpressure is produced which creates suction thus drawing-in liquid. The supply tube is connected to a container for the liquid. A second tube may be arranged in the intake, upstream of the suction tube, in an area or over-pressure, where this second tube is provided with orifices. This tube leads to the bottom of the container, thus pressurising it and aiding evaporation of the liquid. The first tube may contain a spring-loaded valve which opens when the difference between the suction pressure and the positive pressure in the container exceeds a certain limit.
Patent DE-2338261-A1 (DE)
Title: Welding aluminium (alloy) pieces - using low melting point aluminiyum alloy as filler metal
Inventor: TAYLOR IAN THOMAS
IPC: B23K1/20
Filed: 1973-07-27
Abstract: Welding is effected under a flux comprising an intimate mixt. of compounds of potassium fluoroaluminate finely divided and essentially free of unreacted KF. The fluoraluminates contain KF and AlF3 in proportions 40-50:60-50 (by wt.). The weld metal is an aluminium alloy of lower m. pt. than either component to be joined. The weld metal is arranged between the parts to be joined with a layer of flux on top. Welding is then effected by heating to above the m. pt. of the flux and weld metal and below the m. pt. of the parts being joined.
Patent DE-2340192-A1 (DE)
Title: Sepn of iridium - from platinum gp metals
Inventor: PITTIE WILLEM HUBERT
IPC: C22B3/06
Filed: 1973-08-08
Abstract: A mixt. of Pt gp. metals contg. Au and Ir, obtd. as one part of prod. in 803389, is converted to lower oxidation states by treatment with H2O2 in an acid medium at elevated temp. and the pH is adjusted to 9 with NaOH and the ppt. separated having Ir and Pt. in soln. these are then converted to their highest oxidn. states with sodium bromate in acid soln. and the pH adjusted to 6.5 - 7.5 to ppte. Ir.
Patent DE-2340868-A1 (DE)
Title: Foam structural elements with integral skin - made by rotation moulding foamable polyurethane forming monomers onto inside of skin
Inventor: MIENES KARL DR-ING
IPC: B29C44/18
Filed: 1973-08-13
Abstract: The claimed process features applying, by rotational moulding, reactive foamable monomer pref. polyurethane-forming quasi-monomer, onto the inner surface of a preformed shape serving as envelope. This (thin-walled) envelope functions as mould which, when the reactive core has been foamed, forms part as the finished article. In this way, the conventional, time-consuming, operation of removal of a moulding from the mould, is eliminated. Further, there is no need for relatively expensive mould release agents. Pref. material for the envelope include thin (0.5 mm.) metal sheets which may be plastics-coated, e.g. with PVdF. Foaming/moulding may be effected in such a way that the resulting foam core includes a central cavity which may subsequently be filled with useful additives, e.g. a flame retarder. Used in mfr. of variously shaped foam core mouldings including irregular shapes e. g. lamp posts.
Patent DE-2344255-A1 (DE)
Title: Push-button operated pressure switch - has pivoted switching element under spring force and reciprocating slider
Inventor: BLUEMEL REINHARD
IPC: H01H13/36
Filed: 1973-09-01
Abstract: The spring operated switching element, an oppositely rotatable contact element and the axial reciprocating control element between the first two are functionally interconnected and have their rotary axes arranged axis-parallel on a single plane. On axial shifting of the control element the switching element is rotated under increased spring tension from one end position. After exceeding its dead point position it carries with it the rotary contact element under decreased spring tension up to the other end position. During this motion the control element disengages axially from the switching element, and is rotated into its next switching position by the rotary contact element.
Patent DE-2345793-A1 (DE)
Inventor: TERAISHI KATSUHIRO
IPC: G02F1/055
Filed: 1973-09-11
Abstract: An electro-optical digital display particularly suited for use in an electronic wristwatch is provided. The display includes a transparent ceramic material formed as a plate having a pair of opposed major surfaces. Circuitry selectively applying an electric field to the ceramic material, the circuitry including a first transparent electrode engaging a first major surface of the plate and a second reflective electrode adapted to reflect light incident thereon provided from the second major surface of the plate. The first transparent electrode is segmented to define selected regions of application of an electric field to the selective regions of a ceramic plate. A polarization device for circular polarization is disposed adjacent the transparent electrode in the path of incident light upon the transparent electrode, incident light being reflected at selected regions by the reflective electrode in response to the selective energization of the segmented and reflective electrodes, the plate appearing opaque to incident light in the absence of such selective energization.
Patent DE-2346563-A1 (DE)
Title: Spindle press with overload guard - spindle nut lifts axially against hydraulic or pneumatic load
Inventor: KESPER HEINZ
IPC: B30B1/22
Filed: 1973-09-15
Abstract: The spindle is driven by a friction wheel which presses against a wheel at the end of the spindle. The spindle nut is secured against rotation but has axial play. The nut is mounted with sealing rings in the press frame. The axial space above the spindle nut is connected via a one-way valve to a pump and to an overload valve. When the press die hits the workpiece, the reaction force will be taken up by the hydraulic or pneumatic loading on the nut.
Patent DE-2347087-A1 (DE)
Title: Arrangement for detergent-containers for washing-machines - with elastic jacket round container in side-walls
Inventor: HUBER HEINRICH
IPC: D06F37/26
Filed: 1973-09-19
Abstract: The detergent-container possesses an elastic jacket, which can be fixed into the side-walls. The side-walls consist of concrete and the container-jacket of rubber, plastic or the like. As a result, any article, e.g. the drum lid or a piece of laundry that may become lodged between the drum and the detergent-container through incorrect handling of the machine will be prevented from damaging or even destroying the drum and the detergent-container.
Patent DE-2347751-A1 (DE)
Title: Plug-in connector for circuit boards - connects terminals arranged in a grid of a circuit board with components on one side
Inventor: WESSELY HERMANN DIPL ING
IPC: H01R12/71
Filed: 1973-09-21
Abstract: Connections are made between the circuit board and conducting strrps of a multilayer wiring board parallel with the circuit board, whose contact holes are also arranged in a grid pattern. The device comprises a rigid supporting plate fastened to the wiring board, and a terminal plate allocated to the circuit board, in which pin-like or spring-like contacts are embedded. At least three screw sockets are uniformly distributed in the supporting plate, fixed in radial and axial directions. Screws are allocated to these sockets, undetachably placed in bore through guiding posts which pass through holes in the terminal plate and are firmly anchored in a pressure plate, parallel to the circuit board on its side away from the wiring plate. A further screw is provided in the centre of this plate, radially movable, with a further screw socket allocated to it in the circuit board.
Patent DE-2352035-A1 (DE)
Title: Front and rear patterns for printed circuits - are processed together using two colour master and two filters
Inventor: LAUE HANS RICHARD
IPC: G03F7/20
Filed: 1973-10-17
Abstract: The printed circuit board is coated front and back with photo sensitive resist. A special master is prepared with both front and back circuits superimposed using two colours. The mask is illuminated and the images projected simultaneously onto the front and back of the board using a set of mirrors, with the first mirror transmitting one colour and reflecting the other. In addition, filters are provided in each optic path so that only the respective pattern is projected onto the front and back. The system is easily adjusted to ensure that both part images line up with each other. The printing process is then performed in one stage with accurate alignment for front and back.
Patent DE-2353026-A1 (DE)
Title: Vessel gripping and inverting mechanism - has lengthwise linked strips forming polygonal expanding bars engaging with vessels
Inventor: SCHABERGER CARLO
IPC: B66C1/46
Filed: 1973-10-23
Abstract: The mechanism is for handling bottles, cans etc. having parallel holder strips sliding across a movable frame and each with an expander member fixed to it. Each strip comprises four strips joined together along their lengthwise edges to form a closed polygonal-section bar attached at one joint to the frame. An upwards force acting on the bottom joint under the effect of compressed air, typically produced by a hose enclosing the bar, expands the latter to grip the bottles etc. A spring can be provided to contact the bar as soon as pressurisation ceases. Stops can be provided for the lower joint, so as to restrict the amount of expansion, and to prevent the two bottom strips from folding inwards.
Patent DE-2353515-A1 (DE)
Title: Rigid metal chimney-lining-tube for gas and oil burner flues - consists of helically-flanged pipe of alloy steel sheet inserted vertically
Inventor: KUTTER GERHARD
IPC: E04F17/02
Filed: 1973-10-23
Abstract: The flanged seams are helically positioned up the pipe, and serve as expansion seams. The pitch angle of the threading of the seam is approximately fifteen degrees. The expansion occurring at right angles to the seam across the width of the strip is absorbed by the seam itself without damage. The expansion previously occurring in the direction of the pipe's circumference is distributed over the whole pitch of the outer seam. The steel plate used is rust-proof and contains the small movement taking place on heating. The increased stability afforded by the metal prevent insulation or filler material from penetrating the chimney flue. The lining-pieces typically vary in thickness between 0.3 and 1.25 millimetres.
Patent DE-2356368-A1 (DE)
Title: N,N-di-substd. amide plant growth regulators - contg. N,N-di-(4-hydroxy-3-,6-dioxo-hexahydropyrazin-4-yl-acetyl)-amide gp(s)
Inventor: KNOEVENAGEL KURT DIPL CHEM DR
IPC: C07D237/04
Filed: 1973-11-12
Abstract: Organic cpds. contg. the gp. of formula (I) (i.e. N,N-di- 4-hydroxy-3,6-dioxo-hexahydro-pyridazin-4-yl-acetyl -amid- e, referred to subsequently ad N,N-di-Q-amide) of its tautomers are new The cpds. (II) are plant-growth accelerators effective with monocotyl and dicotyl plants, which can be used for stunting the growth of grasses, with ornamental plants, for increasing the vegetation time of vegetables and with hedges and bushes. They have high solubility in water and can be applied as conc. aq. solns. Stunting effect is rapid, and the cpds. persist for a long time in open ground.
Patent DE-2361129-A1 (DE)
Title: Multiple plug connector for high density equipment - uses flexible track-conductor plate between pins and conductor ends
Inventor: ENGEL ALBERT
IPC: H01R12/79
Filed: 1973-12-07
Abstract: The multiple plug connector for electronic equipment consists of a plug board and a spring contact strip. The plug board is connected via a ribbon cable to the circuitry and has a mounting plate fixed to a sidewall of the equipment. Two parallel metal angle-plates are fixed to the mounting plate and have between them the pin housing and an outward directed frame for accepting the spring contact strip. Each pin in the pin housing consists of an external and an internal part. Parallel to the surface of the pin housing is a copper coated foil arranged as flexible conductor plate which may consist of two halves. Each internal part of the connection pins is soldered to an eyelet on the conductor plate.
Patent DE-2362745-A1 (DE)
Title: Foil disc centering mechanism for dictating machines etc. - has simple linkage coupled to existing switching arm
Inventor: SCHLUNK MANFRED
IPC: G11B17/028
Filed: 1973-12-17
Abstract: The mechanism moves the disc from the position it adopts after manual insertion into a recorder to a central position on the recorder turntable, whereby the recorder has a switching arm, e.g. carrying a magnetic head, and pre-centering stops for the disc. A movable positioning member close to the insertion aperture is coupled to the switching arm and is fixed to a member which engages the edge of the disc. Preferably the movement of the positioning member is limited by two stops and a coupling between positioning member and switching arm disengages the latter from each other in the case of an overload.
Patent DE-2363872-A1 (DE)
Title: Transistor cct. to monitor DC voltages - has sum-and-difference amplifier comparing DC voltage with reference signal
Inventor: SIGLOCH RAINER
IPC: G01R19/165
Filed: 1973-12-21
Abstract: The reference signal UR for the sum-and-difference amplifier is formed from the d.c. voltage U1 to be monitored and two reference voltages U3 and U3, obtained by Zener diodes, by means of a threshold logic circuit consisting of diodes and resistances. The signal UR is formed in such a way that UR=U1 for U2 greater than U1 greater than U3, UR=U3 for U1 less than U3 and UR=U2 for U2 less than U1. There are means to indicate a good range and a bad range and to make more abrupt the change from the good range to be band one and vice versa. The series connection of a diode and a Zener diode can be in parallel with the collector resistances of the sum-and-difference amplifier.
Patent DE-2403265-A1 (DE)
Title: Constant reference voltage generator - accommodates varying load and Zener diode linear amplifier and number of resistors
Inventor: AFSAR ERDAL DIPL ING
IPC: G05F1/46
Filed: 1974-01-24
Abstract: The simple constant voltage reference generator circuit has a low output impedance and the ability to deal with changing current load with very small voltage change is presented. The circuit consists of a linear amplifier with an inverting and non inverting input. A resistance zener diode pair is connected to the inverting input via a resistance of some ten times the former resistance and to the inverting input via a resistance input form the output is of some low convenient value. The efect of all this is that the output voltage is a low impedance copy of the zener voltage and can thus accommodate changes in current demand with a much lower voltage change than the straightforward resistance zener diode reference chain.
Patent DE-2409740-A1 (DE)
Title: Sound absorber surface protection - using sound transmitting spacer screen forming duct for fresh air flow
Inventor: VASILJEVIC COSTA SILARD DIPL I
IPC: G10K11/16
Filed: 1974-03-01
Abstract: Active surfaces of sound absorbers operating in conditions of mechanically impure or dust-laden air are kept clean by continuously passing over them a gas or gas stream which is independent from the particle-laden flow. This is achieved by arranging a screen in front of, and spaced from, the sound absorber so that a pressure chamber is formed which is connected to a fresh air or gas supply. The active surfaces of the sound absorber are given a longer life. Cleaning tools and devices, shaped according to the kind of absorber, are inserted on the outside to remove any possible layers of formed dirt etc.
Patent DE-2417696-A1 (DE)
Title: Jet rotary wing aircraft - with jet flow outlet nozzle inclined against the chord of the rotor blade
Inventor: GOERGL GEORG
IPC: B64C39/02
Filed: 1974-04-11
Abstract: Rotary wing aircraft with jet reaction drive and rotor blade central through jet reaction nozzles fitted to the rotor blades. The jet flow outlet nozzle is fitted in an inclined position against the chord of the rotor blade profile and points with the nozzle outlet opening towards the direction of the rotor blade suction side. The inclination of the jet outlet nozzle against the chord of the rotor blade is calculated so that in both maximum angle positions of the rotor blade an equally great thrust component is effective. The wing can move plus or minus 5 deg. from a near inclination of about 16 deg.
Patent DE-2422489-A1 (DE)
Title: Earth borer with drill shaft and screw shaped cutting blade - shaft has hub with stops for rotary blades pivot fitted to hub
Inventor: ASAYAMA KINGO
IPC: E21B7/20
Filed: 1974-05-09
Abstract: Eart borer with a drill shaft which has a screw-shaped cutting blade fitted to the outer periphery of the bottom part of the drill shaft where a hub (5) is fitted t the drill shaft (1) above the screw-shaped cutting blade (2) and has stops for rotary blades (6). The blades are pivot fitted to the hub (5) by means of of pins (7) for free pivoting in and out and are arranged so that they lie on stop sn8) when spread out. There is a water feed bore within the drill shaft (1) and there are water spray- or outlet orifices, connected with the water feed bore (3), in the bottom part of the drill shaft. Specifically, the diameter of the rotary circuit of the blade tips in their spread out state is greater than the outside diameter of a pile to be inserted.