baber/WOPTO huggingface dataset:
Patent DE-2065830-A1 (DE)
Title: Treatment of ion exchange medium - with application of particulate buffer layer for particle retention
Inventor: ERICHSEN CHRISTIAN DR ING
IPC: B01J47/00
Filed: 1970-10-31
Abstract: Before its application, a mass of ion exchange material is treated with ions of a single known type until no further change is observed in the ion concn. leaving the ion exchange mass which is then in a known charged condition. The mass is washed using fully demineralised or distilled water and either simultaneously or subsequently flushed in such a way that the particles are set in motion and settle out in layers corresp. to their size, the smaller particles lying at the top of the mass, and the larger particles lying on a filter base in the container. A buffer material is then introduced and applied on top of the ion exchange particles. Uniform flow without channel-formation in the bed of the material enables it to be subjected to over 250 operational cycles before purging is necessary. This leads to higher capacity, reduced energy consumption, reduced regeneration times and a saving in consumption of regeneration. medium.
Patent DE-2102557-A1 (DE)
Title: Self supporting sheet - with packed PVC tubes having convex sides fitting into matching concave sides
IPC: E04C2/22
Filed: 1971-01-20
Abstract: When the PVC tubes have been closely packed together into the required profile, and secured by a cross rod, they are encapsulated in cold set plastic to give a body with smooth outer surfaces. Process provides self-supporting sheeting in a variety of profiles.
Patent DE-2110056-A1 (DE)
Title: Trihaloethylbenzene derivs - having insecticidal activity superior to ddt
Inventor: MEISER W
IPC: C07C69/63
Filed: 1971-03-03
Abstract: Trihaloethylbenzene derivs - having insecticidal activity superior to DDT. Insecticidal compsn. contain as active ingredient a cpd. of the formula: where X is Br, Cl or F, R is Me, Et, Pr, i-Pr, Bu, t-Bu or 1-ethylpropyl. Prefd. is the known cpd. in which X = Cl, R = Me. The rest are novel. Rapid, long-lasting effect and low toxicity to warm-blooded animals. The prefd. cpd. has a better effect than DDT and poses less of a residual toxicity problem.
Patent DE-2130429-A1 (DE)
Title: Lace making - with improved performance from a one thread lace spindle
IPC: D04C3/00
Filed: 1971-06-19
Abstract: The spindle of a one thread lace machine is operated selectively by a jacquard. The jacquard operates a clutch on a spindle which works as follows. The lower wheel always rotates and a fork moves a square peg down from its stationary position. As the spindle starts to move its 180 degree movement, there are cam profiles on the lower wheel and on the clutch itself and the other causes the square peg to rise up into its starting position, i.e. between the forks. To help it position itself, one of the lower edges of the fork and the corresponding peg edge is chamfered. When relocated between the forks the spindle is firmly located until the next command.
Patent DE-2206475-A1 (DE)
Title: Melt filtering - with centrifuge rotor
IPC: B04B7/18
Filed: 1972-02-11
Abstract: The filter rotor is immersed into the melt which runs continuously into the rotor cavity and after separation of the solids in the melt flows out back into the melt, the solid inside the rotor being removed away from the melt. Pref. the shaft with the rotor may be raised for the rotor to be lifted into a chamber above the melt, where the solid is removed by widening of the filtering slot of the rotating rotor. The method is used in Zn refining, the separation of As from S and has the advantage that there is no danger of th melt metal being oxidised during the filtering operation.
Patent DE-2236679-A1 (DE)
Title: N1-benzoyl-alkyl-n2-(3-phenyl-oxy,thio or amino - -2-hydroxy-propyl)-(homo)-piperazines sedatives,analgesics,antihistamine
Inventor: MILKOWSKI WOLFGANG DR
IPC: C07D295/10
Filed: 1972-07-26
Abstract: Novel title cpds. have formula: (where A, B, C = H, halo, lower alkoxy or sec. amino (opt. cyclic); D, E = H, halo, opt. unsatd. lower alkyl gp. which may be joined directly to each other, lower alkoxy, trifluoromethyl, lower alkylcarboxamido or nitro; X = O, S or NR; R = lower alkyl; m, n = 2 or 3), including their acid addn. salts.
Patent DE-2241554-A1 (DE)
Title: Single surface electric cooker - with a silicone oil filled heating plate
Inventor: LEPPER WILHELM DR ING
IPC: H05B3/74
Filed: 1972-08-24
Abstract: The cooker has a common heating surface to allow for free movement of pots on the cooker surface. The heating plate is made of a non-metallic material and is filled with a heat transfer fluid, esp. a silicone oil, in which the heating elements are immersed. The material pref. has a coefficient of thermal expansion of 0 or nearly 0.
Patent DE-2323754-A1 (DE)
Title: Fixing labels to yoghurt beakers - using continuous strip to apply label after forming of beaker itself
Inventor: KLEIN KARL
IPC: B44C1/17
Filed: 1973-05-11
Abstract: The main patent is concerned with the fixing of labels to deep drawn containers Yoghurt beakers, by transferring a coloured printed layer by means of a wax or silicone layer and utilising the forming stroke of the machine which produces the beaker. The additional patent consists of providing a second mould corresponding to the deep drawing mould with at least one slit in its side through which the label transfer strip is pulled by the working stroke of the machine. The beaker, which is transferred into the secondary mould, is slightly inflated, causing the self-adhesive label to stick to the beaker side wall. The beaker is then allowed to drop down below the machine.
Patent DE-2325121-A1 (DE)
Title: Sawing out pipe lagging - from cellular plastics
Inventor: POLEP HEINZ WILLY
IPC: B26D1/00
Filed: 1973-05-17
Abstract: A segmental mounting rotates freely about a central shaft which lies in the plane of a work table. A saw blade is bent into the arc of a circle of which the mounting forms a segment, and is fixed at each end to the mounting. A reciprocating device rocks the mounting and saw, while a block of cellular plastic material is fed on to the work table and to the saw. A half-round shape is thus cut out from the block. The arrangement produces any length and is quickly adjusted to change the size cut.
Patent DE-2329590-A1 (DE)
Title: Resistance coil for vaporising solids, esp copper - having collector tray beneath
Inventor: PLOTZ EBERHARD DIPL ING
IPC: C23C14/26
Filed: 1973-06-09
Abstract: A directly heated vaporiser, consist of a helical/spiral multi-wire coil, a drip-tray being fitted to the coil base. The effect of the drip-tray is that as the material is first melted, before vapourisation, part of it is held by capillary attraction between the wires, while the remainder is captured by the drip-tray.
Patent DE-2333973-A1 (DE)
Title: Transparent polycrystalline alpha-alumina tube prodn - for high-pressure sodium vapour lamps
Inventor: PUSKAS FERNEC
IPC: C04B35/115
Filed: 1973-07-04
Abstract: Polycrystalline alpha-alumina tubes for high-pressure sodium vapour lamps are produced from a plasticised alpha-alumina based powder (is not >5% gamma-Al2O3) contg. >=90% Al2O3 (pref. 99.5% Al2O3) and some deliberately introduced metal cpd. contaminants moulded by cold extrusion from an abrasion-resistant, sintered alumina die at 0.5-150 t./cm2. (pref. 75 t/cm2) with a reduction degree of >=80% (pref. 85%), opt. with additional mechanical, pneumatic or hydraulic shaping. The body is then embedded in powdered alumina, heated first at 1400 degrees C (pref. 1250 degrees C), freed from the alumina powder, and finally sintered at >1800 degrees C (pref. 1980 degrees C, using a plasma flame) in vacuum, or neutral or reducing gas atmos. for >=15 mins. The transparency of the tube is 85-95% of visible light. The yield is up to 110 lumen/W.
Patent DE-2337400-A1 (DE)
Title: Perch for bird cage - is made of plastics and has ends of softer plastics formed with grooves for fixing
Inventor: BRAUN WILFRIED
IPC: A01K31/12
Filed: 1973-07-23
Abstract: A perch for a bird cage comprises a tubular plastic cross member provided at either end with an insert made of softer plastic with grooves formed therein for engaging the bars of the cage. Each insert has a cylindrical part for engaging in the tubular cross member, a vertical groove in one end face to accommodate a vertical bar of the cage and a horizontal groove cut in the wall of the insert which leaves a claw to grip a horizontal bar of the cage. The harder tubular cross member prevents sagging under the birds weight and the softer inserts prevent brittle fracture on assembly.
Patent DE-2342215-A1 (DE)
Title: Halogenated N-octyl esters - useful as plasticisers and components of lubri-cants and heat-exchange fluids
Inventor: DOBSON KENNETH ROWLAND
IPC: C08K5/101
Filed: 1973-08-21
Abstract: Esters of formulae: Z(CH2)3.Z1.CH2.O.CO.R(Y)x and Z(CH2)3.CH(Z).O.CO.R(Y)x (where Z is XCH2.CHX; Z1 is CHX.CHX; X is Cl or Br; R is a mono- or divalent aliphatic or aromatic residue; Y is Z(CH2)3.Z1.CH2.O.CO.or Z(CH2)3.CH(Z).O.CO; x = 0 or 1) are pref. prepd. by liquid-phase reaction of the corresp. octadienyl ester with halogen at moderate temps. (esp. 60 degrees C), pref. in a halogenated hydrocarbon solvent, esp. CCl4.
Patent DE-2343709-A1 (DE)
Title: Apparatus measuring foetal heart rate and intrauterine pressure - has pressure sensitive and ultrasonic Doppler unit in rigid ring applied to abdomen
Inventor: LEWIS THOMAS DEREK
IPC: A61B5/024
Filed: 1973-08-30
Abstract: An electronic apparatus measures the foetal heart cycle and the intrauterine pressure with a press-responsive element surrounded by a rigid support ring which can be applied to the patient's abdomen and which acts to flatten it; the reaction force of the abdomen against the element is a function of the abdominal, and hence intrauterine, pressure. A unit fitted to the ring uses the ultrasonic doppler effect to measure the foetal heart rate, with the ultrasonic path through the press. responsive element into the abdomen and back again. Pref. the element is a diaphragm of metal, which may be integral with the ring, and which has strain gauges fitted to its inner side. The apparatus is small, light-weight and cheap, and operation is simple.
Patent DE-2348505-A1 (DE)
Title: Electrochemical sensing element - determines oxygen content in I.C. engine exhaust gases
Inventor: UNGEER ERWIN
IPC: G01N27/407
Filed: 1973-09-27
Abstract: The element has an ion conducting solid electrolyte tube with a bottom at one end. The inner side has an electron conducting path reaching down to the bottom and provided with a terminal. It is exposed to the ambient air, and its outside has an electron conducting catalyst layer, connected to frame through a metal case. It faces the exhaust gases and is surrounded by a protective device at a distance from the solid electrolyte tube. It projects beyond the electrolyte tube bottom end, and has at least one hole for exhaust gases in and out flow. These holes have guiding means which, while guiding the exhaust gases to the electrolyte tube, prevent them from directly hitting it. The protective device has two coaxial sheaths with holes.
Patent DE-2348542-A1 (DE)
Title: Switching circuit receives two signals - each of which generates potential at its respective output using differential amplifier
Inventor: MINNER WILLY
IPC: H03J1/18
Filed: 1973-09-27
Abstract: One signal is a constant d.c. voltage, and the other is a clock pulse train whose amplitude is equal to that of the d.c. signal; they are both applied to the same input. The circuit comprises a differential amplifier, two voltage dividers, a differentiating element and an amplifier followed by an integrating element; the signal voltages are applied to one input of the differential amplifier through a first voltage divider; the clock pulse train is passed through the differentiating element and the amplifier with the integrating element following it. The integrated signal is applied to the differential amplifier second input through the second voltage divider, the division ratios of the dividers are such, that when the d.c. voltage signal is present, the output of one side of the differential amplifier is switched through, and when the clock pulse train is present, the other output is switched through.
Patent DE-2354861-A1 (DE)
Title: Load-bearing window sill and bench case - has multi-chambered hollow plastics section embracing outside and inside sills
Inventor: KNAUST KLAUS
IPC: E06B1/70
Filed: 1973-11-02
Abstract: This is a substitute for the load bearing sill and bench combination, usually of cast concrete, with an outer sill covering and an inner sill, fitted in the lower part of a wall window opening, here with simplified assembly in one single unit, and readily adaptable for different types of window. The hollow chambered plastics section is reinforced if necessary with a stiffening section inserted in one or more places. There may be a stepped transition from inner to outer sill, with projections and/or grooves on the inside to hold a blind-frame section. There may be a closing shaped section on the front edge of the inside sill. This can be used in conjunction with wooden or metal window frames as well as hollow plastics ones.
Patent DE-2355629-A1 (DE)
Title: Xerographic colour copying - using intermediate four-segment colour negative of original
Inventor: GRASER HARALD DR
IPC: G03G13/01
Filed: 1973-11-05
Abstract: Photoelectric copying process produces monochrome and multi-coloured copies. The original used to give a four-image black and white negative consisting of four successive sections with red, green, blue, and black sensitization respectively; the segments are successively projected with ultraviolet light from a projector via mirrors onto a coyping device, from which they are set, in register, on a copy carrier. Preferably the unexposed four-image negative is conducted through an episcope and projected onto the negative segmentally to give corresponding latent images which are developed with rapid developer and projected with UV, to be successively set on a carrier.
Patent DE-2356824-A1 (DE)
Title: Packing material strip transport and tensioning system - has suction head bearing against strip before pull-off rollers
Inventor: KIEFER HEINZ
IPC: B65B41/12
Filed: 1973-11-14
Abstract: The strip of packing material is fed off a storage roll with a brake between a pair of pull-off rollers, so as to keep it tight. Immediately adjacent to the rollers on the inlet side is a suction head extending over the full width of the strip, and which can have a suction slot extending for the same width. The upper roller can be divided into a set of individual roller sections spaced apart. The invention avoids the formation of lengthwise folds in the stip. The upper roller can be divided into smaller rolls distanced from each other, which is recommended when sticky bands are on the packing path.
Patent DE-2364309-A1 (DE)
Title: Closing rear end of ball pen writing element - flattening to build up gas cushion press., and sealing
Inventor: DZIUK PETER
IPC: B43K7/04
Filed: 1973-12-22
Abstract: Rear end of a ball pen writing element, with the writing medium column under gas press., is closed. A tube is longer than required for the column, press. space and a closure. Its outer end is pressed flat until a gas cushion builds up over the column, and is thus sealed, or is additionally sealed if necessary. The excess flattened part is cut off. Preferably the remaining flattened part is bent around at the end, and/or is welded or adhered at its closure end. Appts. requirements are thereby reduced. Another possibility is for the end of the tube to be rolled to produce the gas cushion. The parting and sealing can be made by ultra-wave welding.
Patent DE-2404049-A1 (DE)
Title: Continuous prodn of basic zinc carbonate - by mixing a zinc salt soln with sodium carbonate soln contg. sodium hydroxide
Inventor: MANSMANN MANFRED DR
IPC: C01G9/02
Filed: 1974-01-29
Abstract: The continuous prodn. of basic zinc carbonate (I) is carried out by continuously contacting a Zn salt soln. with an NaOH-contg. Na2CO3 soln. while maintaining a pH of 7-10, the residence time of the mixt. in the reaction vessel being 10-1800 (pref. 45-300) sec. (I) is used as an activator and filler for rubber and for the prepn. of active Zn oxide (also used as a rubber activator and filler). The process gives high space-time yields of a high-purity product with good filterability; the filtrate has a very low Zn content, thus minimising waste-water treatment problems. The product can be converted (by calcination) into high-purity ZnO with a bulk density of 25-30 g/100 ml. The equiv. ratio of NaOH to Na2CO3 is pref. 25:75 to 80:20, esp. 50:50 to 60:40. The Zn salt is pref. Zn (NO3)2, ZnCl2 and/or ZnSo4, opt. in admixture with alkali(ne earth) metal salts. The initial solns. are pref. preheated to >50 degrees C before contact. The product is pref. converted into ZnO by calcination at =600 degrees C.
Patent DE-2408038-A1 (DE)
Title: Minimising strata movement in driving tunnels - sections driven in steps are immediately lined with concrete
Inventor: BLINDOW FRIEDRICH KARL DIPL IN
IPC: E21D11/00
Filed: 1974-02-20
Abstract: The surface of the caviy when driven a predetermined length is immediately lined with freshly mixed concrete in which steel rings are embedded in order to bind it with the wholse surface of the surrounding strata. When a large cavity of a considerable width is driven it is divided in parallel sections supported by intermediate walls. The sections are then driven in short steps after each other and each section, after it has been driven a predetermined length is immediately lined up with concrete in which is embedded steel support for its roof and floor and for the intermediate dividing wall. With the cavity completed, its floor and roof parts form parallel arches joined by side walls of the cavity and the intermediate supporting walls.
Patent DE-2408485-A1 (DE)
Title: Clothes drier with rotary drum - driven by belt with tensioning roller
Inventor: KORNFELD HEINRICH
IPC: D06F58/08
Filed: 1974-02-22
Abstract: Rotary-drum clothes drier includes drive belt with tensioning roller which is mounted on a support arm. The arm is connected by two springs and a pivot axis to a retaining member which is fixed in the housing wall of the machine. This prevents tilting of the roller and ensures tensioning in both directions of rotation.
Patent DE-2408682-A1 (DE)
Title: Generator drive by submerged buoyancy chain - using compressed air injected below water level
Inventor: IGNASIAK HEINRICH
IPC: F03B17/02
Filed: 1974-02-22
Abstract: The arrangement comprises a continuous chain whose links are provided with bowls, the chain being suspended on a chain wheel at the top and steadied by a chain wheel at the bottom. The air is supplied by a compressor driven by an auxiliary motor, the arrangement being such that the ascending air enters the bowls whose open ends are printing downwards, thus driving the chain upwards, the descending part of the chain going down under its own gravity. The upper chain wheel is used to drive a generator.
Patent DE-2408844-A1 (DE)
Title: Pedicure-tool for aminal claws and hooves - has electrically-driven grinding-disc with coarse-grained blade enclosed by protective cap
IPC: A01L15/00
Filed: 1974-02-23
Abstract: The grinding tool is made of plastic, preferably of a polyamide grinding-disc and a grinding-blade of equal diameter screwed together by means of a centering-disc and circular nut. A protective cap is fixed to a join of the mitre-gear by means of a tension-band. The protective cap has a shield-edge facing parallel to the drive-axle, which partly encloses the grinding disc and blade. The shield edge is set back by roughly three millimetres from the edge of the blade. The shield edge is rounded, and a handle is provided on the mitre gear.
Patent DE-2409193-A1 (DE)
Inventor: FALVO RALPH
IPC: C08J5/22
Filed: 1974-02-26
Abstract: An improved method and apparatus for the electrolysis of ionizable chemical compounds is disclosed including specifically a process for the production of chlorine and caustic soda containing low concentrations of sodium chloride by the electrolysis of brine which comprises electrolyzing brine solutions in a two compartment cell equipped with a cathode and an anode separated by permselective barrier formed by sandwiching together two or more membranes consisting essentially of a hydrolyzed copolymer of tetrafluoroethylene and a sulfonated perfluorovinyl ether having the formula FSO2CF2CF2OCF(CF3)CF2OCF=CF2 said copolymer having an equivalent weight of from about 900 to about 1600. By the use of a multilayer membrane sandwich as the barrier the caustic current efficiency of the process is increased over that obtained when a single layer membrane is used as the barrier separating the cathode and anode.
Patent DE-2417210-A1 (DE)
Title: Printed sheet transport and stacking machine - has slewing cup transferring to discharge conveyor leading to stacking mechanism
Inventor: SCHMIDT MAX
IPC: B65G47/90
Filed: 1974-04-09
Abstract: The machine extracts, transports and stacks printed sheets etc., particularly after screen printing and where the sheets form parts of plastic toys. After printing, the drawn flat sheets are transferred to the discharge conveyor by means of a slewing cup also moving up and down. At the other end of the conveyor is a stacking mechanism with a roller conveyor along which final ejection takes place. The cup can comprise a stationary outer section and a coaxial inner section moving up and down inside it. The open edges of the sections lie in a common plane during transport.
Patent DE-2427041-A1 (DE)
Title: Pneumo-static stabilising technique for transportation of bulk liquids - using gas filled pressurised bladder over free surface
Inventor: SAKOBIELSKI WILHELM AUGUST
IPC: B65D90/38
Filed: 1974-06-05
Abstract: The pneumo-static stabilising technique for bulk goods such as liquids with freely movable surfaces in closed transport containes. The technique includes the attachment of a variable shape pressurised bladder which is inflated up to a pre-determined stereotyped pressure which is calculated in accordance with a formula based on the hydrostatic weight divided by the viscosity of the material being transported. This pressure is exerted as a pressure bolster on the surface of the liquid being conveyed and is kept constant by the operation of the pneumo-static installation supplying gas to the bladder interior. Typically the gas used in the bladder can be air, nitrogen, or carbon dioxide etc. The bladder itself may be made of reinforced rubber or a plastics based elastomer and which does not react chemically or physically with the liquid being transported.
Patent DE-2428638-A1 (DE)
Title: Combined machine tool for making coffin parts - has system of clamps and movable boring jigs with nail guns
Inventor: POELKEMANN ALFRED
IPC: B23D45/14
Filed: 1974-06-14
Abstract: The machine frame has a slanted work table and has clamps (2), to press the lower (3), and upper battens (4), against the centre board (5). The frame has flexibly connected nail guns to fasten the battens to the centre board (5). Also in the frame there is a multispindle bore aggregate at right angles to the table, moveable in two planes. Both sides of the machine table have firmly connected or free tables (9), for a saw arrangement consisting of a slide, and a pillar (11), with a 'U'-shaped slide (12), an adjustable support (13) for a motor (7) and saw (8) for bevel cuts. Also there are toggle joints (14) with hydraulic cylinders (15), and pressers (16), for application on the centre board.