baber/WOPTO huggingface dataset:
Patent WO-02072667-A1 (WO)
Title: Verfahren zur herstellung von funktionalisierten polyimid-polymeren
Inventor: ALBRECHT WOLFGANG
IPC: C08G73/10
Filed: 2002-02-23
Abstract: Bereitgestellt wird ein Verfahren zur Herstellung von funktionalisierten Polyimid-Polymeren, bei dem a) eine Lösung A eines zu funktionalisierenden Polyimid-Polymers in einem Lösemittel für Polyimid gelöst wird, entweder b11) ein Lösung B mindestens eines organischen Modifikators mit einem pH-Wert ≥ 7 hergestellt wird und b12) die Lösung B insgesamt oder portionsweise bei kleiner/gleich Raumtemperatur zu der Lösung A unter Bildung eines homogenen Reaktionsgemisches hinzugegeben wird oder b2) der Modifikator direkt der Lösung A zugesetzt und dort homogen unter Bildung eines homogenen Reaktionsgemisches gelöst wird, c) das homogene Reaktionsgemisch erwärmt wird und d) die nach Abkühlung erhaltene Polymer-Lösung auf per se bekannte Weise aufgearbeitet wird. Mit dem erfindungsgemässen Verfahren ist es möglich, funktionalisierte Polyimid-Polymere mit einem variablen, jedoch gezielt einstellbaren Gehalt an unterschiedlichen funktionellen Gruppen kovalent zu funktionalisieren und eine möglichst einheitliche Verteilung der funktionellen Gruppen entlang der Polymerkette zu realisieren. Diese Polymere eignen sich insbesondere zur Herstellung von Membranen.
Patent WO-03012278-A1 (WO)
Title: Verfahren und steuergerät zur funktionsdiagnose eines tankentluftungsventils einer brennstofftankanlage insbesondere eines kraftfahzeugs
Inventor: STREIB MARTIN
IPC: F02M25/08
Filed: 2002-06-21
Abstract: Bei einem Verfahren zur Prüfung der Funktionsfähigkeit eines in einer Tankanlage insbesondere eines Kraftfahrzeuges angeordneten, mittels einer Steuereinheit (21) ansteuerbaren und mit einem Saugrohr (16) verbundenen Tankentlüftungsventils (20), wobei eine Druckquelle (30) zur Prüfung der Dichtheit der Tankanlage mittels Über- oder Unterdruck vorgesehen ist und wobei die Funktionsfähigkeit des Tankentlüftungsventils anhand wenigstens einer Betriebsgröße (102) der Druckquelle erfolgt, ist zur Erreichung einer kurzen Diagnosedauer und eines höchstmöglichen Maßes an Diagnosesicherheit vorgesehen, dass das Tankentlüftungsventil öffnend oder schließend angesteuert und eine bestimmte Druckänderung (100, 108) durchgeführt wird, und dass die wenigstens eine Betriebsgröße (102) der Druckquelle erfasst und aus der erfassten Betriebsgröße auf ein funktionsfähig öffnendes bzw. schließendes Tankentlüftungsventil geschlossen wird.
Patent WO-03093655-A1 (WO)
Title: Druckversorgungseinrichtung für eine elektrohydraulische ventilsteuerung von gaswechselventilen in brennkraftmaschinen
Inventor: DIEHL UDO
IPC: F01L9/10
Filed: 2002-12-12
Abstract: Es wird eine Druckversorgungseinrichtung für eine elektrohydraulische Ventilsteuerung von Gaswechselventilen in Brennkraftmaschinen angegeben, die ein Fluidreservoir (12), einen Fluidausgang (11) zum Anschliessen der Ventilsteuerung und eine Hochdruckpumpe aufweist, die Fluid aus dem Fluidreservoir (12) entnimmt und unter Hochdruck zu dem Fluidausgang (11) fördert. Zur Erzielung eines hohen Pumpenwirkungsgrads und einer hohen Systemdynamik ist die Hochdruckpumpe als Konstantpumpe (14) mit einem Pumpenein- und einem Pumpenauslass (141, 142) ausgebildet und der Pumpenauslass (142) mittels eines Umschaltventils (19) wechselweise an den Fluidausgang (11) und unter Absperrung des Fluidausgangs (11) an das Fluidreservoir (12) anschliessbar.
Patent WO-03055166-A1 (WO)
Title: Anbindung von netzwerken mit unterschiedlichen protokollen über einen media gateway controller
Inventor: ANGERMAYR MANFRED
IPC: H04M7/00
Filed: 2002-12-12
Abstract: Verfahren zum Anbinden von Netzwerken, die auf unterschiedlichen Protokollen basieren, über ein Übersetzungsprotokoll (5), wobei auf einem Gateway (2) eines ersten Netzwerks eine Applikation (8) vorgesehen ist, die mehrere Prozesse (9) aufweist, die jeweils die Statusinformationen eines zweiten Netzwerks abfragen. Um die Zeit für den Verbindungsaufbau deutlich zu reduzieren und eine Entlastung des Netzes zu erreichen werden die von einem Prozess (9) abgefragten Statusinformationen in einem für alle zu der Applikation (8) gehörende Prozesse (8) zugänglichen gemeinsamen Speicherbereich (10) übertragen, der sich auf dem ersten Gateway (2) befindet.
Patent WO-2004031555-A1 (WO)
Title: Ansaugvorrichtung
Inventor: ZENTGRAF MATTHIAS
IPC: F02B31/06
Filed: 2003-08-06
Abstract: Eine Ansaugvorrichtung hat einen Kanal, der unmittelbar oder mittelbar mit einem Zylinder einer Brennkraftmaschine kommuniziert, wenn die Ansaugvorrichtung an der Brennkraftmaschine angeordnet ist. Sie hat ferner eine Klappe (5), die auf einer Welle (7) gelagert ist und die in dem Kanal so angeordnet ist, dass sie in einer vorgegebenen Stellung eine Tumble-Strömung oder Swirl-Strömung in dem Zylinder erzeugt. Die Klappe hat mindestens eine Ausnehmung (11 bis 16), die sich von der Seite der Klappe, die der Hauptströmungsrichtung (9) in dem Kanal zugewandt ist, hin zu der Seite erstreckt, die der Hauptströmungsrichtung (9) in dem Kanal abgewandt ist. Dabei wird die Ausnehmung (11 bis 16) während des Betriebs der Brennkraftmaschine in Hauptströmungsrichtung (9) von einem Gasmassenstrom durchströmt, wodurch ein Druckausgleich erfolgt.
Patent WO-2004040646-A1 (WO)
Inventor: BARTH HANS-JOACHIM
IPC: H01L23/522
Filed: 2003-09-09
Abstract: An electronic component (EB) comprises a first insulation layer (1), on which a first metallic layer (5) is arranged. An electrical conducting structure (2) is integrated in the first insulation layer (1), which mechanically stabilises the insulation layer (1) on bonding and/or assembly of the component (EB) and is embodied as a passive electronic component.
Patent WO-2004038300-A1 (WO)
Inventor: REYNARTZ ARMIN
IPC: F24F11/00
Filed: 2003-10-20
Abstract: Ein erfindungsgemäßes Luftaustauschsystem weist wenigstens eine Luftaustauschvorrichtung (1) mit einem elektrischen Zuluft-Lüfter (10) zur Förderung eines Zuluftstroms von der Außenseite in das Innere des Gebäudes, wenigstens einen Innenluftfeuchtigkeitssensor (26) und eine Steuerungseinheit auf. Der Innenluftfeuchtigkeitssensor (26) ist mit dem Zuluft-Lüfter (10) betätigbar verbunden und kann diesen in einen ersten Lüftungsbetriebszustand versetzen, bei dem die Drehfrequenz des Zuluft-Lüfters (10) gleich Null ist oder als Mindestlüftungsdrehfrequenz ausgebildet ist, wenn die gemessene relative Luftfeuchtigkeit im Inneren des Gebäudes einen vorbestimmten Maximalwert überschreitet oder einen vorbestimmten Minimalwert unterschreitet. Eine ebenfalls mit dem Zuluft-Lüfter (10) verbundene Steuerungseinheit kann den Zuluft-Lüfter (10) automatisch in einen zweiten Lüftungsbetriebszustand mit einer vorgegebenen Drehfrequenz versetzen.
Patent DE-1801141-A1 (DE)
Title: Activators for oxidation, bleaching washing or auxiliary - washing agents containing per compounds
Inventor: KUEHLING DIPL-CHEM DR DIETER
IPC: A61K8/49
Filed: 1968-10-04
Abstract: Activators for oxidation, bleaching washing or auxiliary washing agents containing per compounds. G5-. 1,3-diacylated 4,5-diacyloxy-imidazolidines (I) (where R is H, Me or Et; R1 is 1-4C acyl; R2 and R3 are 1-4C alkyl or phenyl) reduce min. oxidation and/or bleaching temp. and accelerate oxidation period of inorganic per-cpds. (A), such as H2O2 or perborates giving off active O. Preferably R=H; R1 = formyl or acetyl; R2 and R3 both = Me, Et or Ph. They are useful in washing and bleaching compositions, particularly for washing synthetic, delicate or easy-care finished fabrics at 30-50 degrees C; cosmetic hair or skin bleaching; disinfectants and for passivating Al.
Patent DE-1810230-A1 (DE)
Title: Film wrapping line for pallet loads
Inventor: GRIMM HANS
IPC: B65B9/13
Filed: 1968-11-21
Abstract: Film is fed from stock roll in adjoining halves folded together and so is drawn out over a guide shoulder forming a tunnel with guide edges. The first pallet moves on to a first station and the second is then brought up to it for welding and parting when the film between them has been forced down to form a V for welding. The tunnel serves as shrinkage area, and the welding tools and partners are powered by compressed air or hydraulically, with interposed chokes or valves to control force during the welding.
Patent DE-1815640-A1 (DE)
Title: Manufacturing a torsion spring with pre- - loading
Inventor: SHIGUMA HEIJIRO
IPC: B21F3/04
Filed: 1968-12-19
Abstract: Spring steel wire is wound round a mandrel and simultaneously given a torsional tension in a direction of rotation which is the same as in which the wire is wound round the mandrel, whereby a high initial tension is maintained in the torsion spring.
Patent DE-1817515-A1 (DE)
Title: Air classifier fine fraction cooler
Inventor: BONK BENNO
IPC: B07B11/02
Filed: 1968-12-30
Abstract: Fine fractions, in a vertical classifier with internal fan, flow to surfaces directed inwards to the classifier, the outer faces of which, in the cylindrical-conical outercasing, are cooled by coolant flowing through cooling coils attached to both cylindrical and conical parts of the casing. These are welded to the casing in the form of halved tubes, to produce turbulent coolant flow inside them. Coolant flow is counter-current to the flow of solids.
Patent DE-1911081-A1 (DE)
Title: Hot gas drying of powdery or fine grain mat- - erial
Inventor: ROLF JIPP DIPL-ING
IPC: B04C5/24
Filed: 1969-03-05
Abstract: In a hot gas drier comprises two tiered cyclone heat-exchangers with feed chamber and separator cyclones with gas exhausts, the vertical coaxial cyclone heat-exchangers are connected for both material and gas flow by an annular opening between the cone of the upper cyclone heat-exchanger and the baffle tube of the lower one, and the gap between the upper and lower baffle tubes is adjustable by a sleeve telescope over the lower tube.
Patent DE-1944484-A1 (DE)
Title: Glass for microconductor insulation
Inventor: P OBIDINA SERAFIMA
IPC: C03C3/097
Filed: 1969-09-02
Abstract: The glass has a compn. (% wt.) 79.0-83.0 SiO2, 14.0-16.0 B2O3, 1.5-2.5 BaO, 0.7-1.7 K2O, 0.3-0.7 Li2O, and 0.5-0.7 P2O5. Microconductors of metals melting in the range 1350-1450 degrees C (e.g. Nichrome) in lengths in excess of 1m may be produced with this glass.
Patent DE-1947353-A1 (DE)
Title: Large press tool prodn using cutting ledges set in - wood base plates
Inventor: CROSLAND CHARLES
IPC: B21D37/20
Filed: 1969-09-18
Abstract: Large stamping tools are made using cutting ledges mounted into wood spacing plates into which they are mounted into sawn out slots formed between the male and female base plates, employing a locking peg inserted into the submerged part of the cutting ledges which are positioned and locked firmly by means of e.g. epoxy resin poured into the gaps round the cutting ledges also securing the fixing pegs.
Patent DE-1951632-A1 (DE)
Title: Polyolefine with diphthalimides to form - stable fine crystalline structures
Inventor: WIEDENMANN RUDOLF DR
IPC: C08K5/3417
Filed: 1969-10-14
Abstract: Diphthalimides (I) (where R1 to R4 are H, halogen, alkyl or alkylene and R5 is alkylene >=(CH2)2 cycloalkylene or arylene), pref. N,N'-ethylene ditetrachlorophthalimide, are used as N-substd, aromatic carboxylic acid imide additives to produce stable fine crystalline structures in solid partially crystalline polyolefines, as a further modification of DT 1953239 which discloses addition of 0.01-10 wt.%/weight polyolefine aromatic carboxylic acid imides and/or N-substd. aromatic carboxylic acid imides, optionally admixed with other crystalline nuclei-formers. Materials include high and low pressure polyethylene, partly crystalline polypropylenes and polybutene-1, and have improved electrical properties, rendering them suitable as cable insulation.
Patent DE-1955827-A1 (DE)
Title: Dehydration of ethylene diamine using piper - idine
Inventor: ADAM KARL DR
IPC: A63H19/18
Filed: 1969-11-06
Abstract: Aqs. ethylene diamine is distilled in the presence of piperidine as an azeotrope former. The azeotrope may be dehydrated by distillation with a hydrocarbon, partic. benzene. Ethylene diamine is used in complex formation, plant protection agents and as an epoxide resin hardener.
Patent DE-1961830-A1 (DE)
Title: Mould holder for foamed plastic mouldings
Inventor: GEISS GEORG
IPC: B29C33/30
Filed: 1969-12-10
Abstract: The mould can be attached to a table, and the latter can be rotated about a horizontal transverse axis to hold the mould at the best angle consistent with any particular mould shape.
Patent DE-1966235-A1 (DE)
Title: Ozoniser
Inventor: W BEITZEL STUART
IPC: C01B13/11
Filed: 1969-08-27
Abstract: An ozoniser of the silent type, comprises two spaced electrodes with at least one dielectric situated between them. Oxygen        passes between the electrodes so that ozone is separated from it under the action of the field. The dielectric is transparent to radiation produced by the ozone generating field. A catalyst for the production of ozone, from oxygen, is placed between the electrodes, so that it comes into contact with the oxygen passing between the electrodes. This catalyst is a metal, belonging to one of the groups, IVa, Va and VIa of the periodic table or an oxide of one of these metals.
Patent DE-2004083-A1 (DE)
Title: Secintillator compn with per-deuterated sol- - vents and solubilisers
Inventor: KRUMBIEGEL PETER DIPL-CHEM DR
IPC: G01T1/204
Filed: 1970-01-30
Abstract: Liquid scintillator composition for measuring nuclear radiation and having increased (1.3-6 times higher) efficiency in detection of low energy alpha-particles and lower quenching effect when using radioactive compositions dissolved in water, alcohol or other solubilising agents, consists of organic scintillator in toluene or structurally similar solvent, such as alpha-methyl naphthalene, ditolyl methane or xylene and opt. quaternary ammonium base, alcohol and/or water solubilisers, where the solvent(s)/solubiliser(s) are present as at least 97 atom % per-deuterated cpds., or, in case of bases and alcohols, the OH-groups are 97 atom % perdeuterated.
Patent DE-2040817-A1 (DE)
Title: Polyaryl-polyphenolic antoxidants contng - sulphur
Inventor: ANDREW HAGEMAN HOWARD
IPC: C08G75/14
Filed: 1970-03-16
Abstract: Antioxidants particularly suitable for aqs. synthetic rubber like latexes are bis beta-(hydroxyaryl)-beta-arylalkyl mono- and di-sulphides, preferably mono- and di-thiobis-(beta-arylalkylene-diphenols. Preparation is by reaction of a phenol with a mono- or di-thiodialkylene halo-compound, preferably a bis-(beta-halo-beta-arylalkyl) mono- or di-sulphide which is prepared from S monohalide plus beta-arylolefin diluted with inert solvent below 45 degrees C.
Patent DE-2043900-A1 (DE)
Title: Leather finishing solution - contains polyurethanes, vinyl chloride copolymers, polyacrylics and polyisocyanates
IPC: C14C11/00
Filed: 1970-09-04
Abstract: Solns. of (a) polyurethanes and/or polyureas with terminal OH, NH2 or NCO gps. of mol. wt. 1,000 - 200,000 derived from cpds. of mol. wt. 500 - 20,000 having terminal OH or NH2 reacted with polyisocyanates and chain lengthening agents of mol. wt. below 500; (b) 20 - 1,000 wt.% based on (a) of copolymers of mol. wt. 25,000 - 150,000 contg. 70 - 99.5 wt.% vinyl chloride, 0-30 wt.% vinyl alcohol and/or 0-30 wt.% vinyl acetate and/or 0.30 wt.% of units derived from copolymerisation of alpha,beta-unsatd. mono- or di-carboxylic acids or their (semi) esters; (c) 10-1,000 wt.% based on (a) of a polyacrylic resins of mol. wt. 15,000 - 500,000; (d) polyisocyanates; (e) accelerators, stabilisers etc.; are used for finishing leather. The coatings produce excellent finish on leather without loss of touch or suppleness.
Patent DE-2131739-A1 (DE)
Title: Plate leveller - has facilities for changing top and bottom roll sets separately
Inventor: SCHATZ KURT
IPC: B21B31/10
Filed: 1971-06-25
Abstract: The upper and lower roll sets on a plate levelling machine can be changed separately. The upper set is locked in posn. by curved hooks which fit round pins in the frame. To change the upper rolls, the lower set is raised until they are in contact. The pins are released, and the lower rolls are retrated so that teupper set comes on to a roller track on which it is withdrawn from the machine on to a roll changing stand, that is also adjustable for height.
Patent DE-2142995-A1 (DE)
Title: Frictional compsn - contg a frictional medium of specific grain size and shape
Inventor: HUETTERMANN BERNHARD
IPC: F16D69/02
Filed: 1971-08-27
Abstract: Frictional compsn. comprises usual binders, fillers, and modifiers controlling the frictional characteristics, in form of bonded particles, such modifiers being present as highly compacted granulate having predetermined grain shape (e.g., as truncated pyramids, base 6 x 6 mm., height 3 mm). Performance of frictional elements contg. frictional grains as defined is controllable due to predetermined shape of frictional agent. No waste accrues in prepn. of the latter, which in prior art amounted to =30% of material used. Used in mfr. of braking elements.
Patent DE-2146542-A1 (DE)
Title: Concrete shuttering walls prodn - with addition of thickener to the concrete
Inventor: NIEMEYER WOLFGANG DIPL ING
IPC: E02D5/18
Filed: 1971-09-17
Abstract: For the prodn of the walls a support liquid is employed. This is made up by adding a thickener of the type used in the chemical industry such as silica or Mg silicate to the mixing water for the concrete. The method does not yield any waste water presenting disposal problems, it also avoids the need for adding bentonite which weakens the concrete.
Patent DE-2155209-A1 (DE)
Title: Cyanamide/2-chloroethylphosphonic acid or ethylene compsns - for defoliating vines and fruit trees
Inventor: AMANN FRITZ
Filed: 1971-11-06
Abstract: Aq. sprayable compsn. comprising cyanamide and 2-chloroethylphosphonic acid or ethylene is a defoliant for use on vines, fruit trees and other crops to aid mechanical harvesting of the crop. The taste of wine from grapes harvested in this way is not adversely affected. The leaves drop readily, unlike the effect produced by cyanamide or the phosphonic acid alone. Solns. may contain 0.5-4% of cyanamide and 0.1-0.4% of 2-chloroethyl)-phosphonic acid or 0.01-0.03% of ethylene.
Patent DE-2155896-A1 (DE)
Title: Pyridines prepn using copper catalyst
Inventor: KUSUNOKI YASUO
IPC: C07D213/14
Filed: 1971-11-10
Abstract: Process comprises heating a mixture of paraldehyde and ammonia aqs. soln., if necessary with alcohol and ammonium salt in the presence of Cu (II) cpd. under pressure. In the absence of divalent copper cpd., resultant pyridines are mostly 2-methyl-5-ethylpyridine and little alpha-picolline is yielded. In the presence of divalent copper cpd., yield of alpha-picolline increases. Amt. of catalyst as metal is >0.5 mols. amt. of paraldehyde. Pref. 0.5-3 mols. excess are used.
Patent DE-2166977-A1 (DE)
Title: Copper coated plastic bodies - by applying conducting layer and vacuum depositing copper
Inventor: BRANDT WILHELM DR
IPC: C23C14/20
Filed: 1971-12-08
Abstract: Copper coatings are applied to shaped plastic bodies by applying to the surface to be coated a layer of a conducting material in such an amt that the surface resistance is 1-1012 ohm, by either (a) developing noble metal seeds on the surface by sensitising with noble metal salt, activating with a reducing agent and depositing an electroless copper layer or (b) applying carbon black to the surface, and then evaporating copper under strongly reduced pressure. The plastic body pref. consists of a polyester, polyalkene, polyimide, or ABS polymer. Copper is pref. evapd. to give >=2g copper/m2 surface.
Patent DE-2250894-A1 (DE)
Title: Returnable packaging system - for transport and storage of goods using tubular containers closable by individual circular dis
Inventor: GOURLEY FREDERICK WALLACE
IPC: B65D59/02
Filed: 1972-10-17
Abstract: The container is a tubular shell with a smooth internal surface, made of glass fibre, steel, Al, plywood, plastics or combinations of these materials. Two circular gaskets are provided to fit into each end of the tube and form the ends. Each gasket is provided with inflatable pneumatic tubes round its diameter to seal and connect the gasket to the tube. Pref. further circular gaskets are provided to subdivide the tube into compartments. A cheap packaging method is provided esp. for newprint avoiding expensive and time-wasting individual wrapping.
Patent DE-2328423-A1 (DE)
Title: Centrifugal fan squirrel-cage induction motor - has large slip for zero fan loading reducing as fans loading pressure increases
Inventor: KAISER KARL
IPC: H02K17/16
Filed: 1973-06-05
Abstract: The motor has its electric resistance chosen to give a short circuit current pref. 25% above the rated current. The squirrel cage A1 alloy bars, corresponding to the filled slots in the laminated rotor, are inclined at an angle to the rotor axis such that an overlap of approx. 2.5-2.75 per slot pitch is achieved. The ratio of the number of stator slots to the rotor slots or cage bars is slightly greater than unity, and the difference between these numbers lies between 1 and 4. The air gap between stator and rotor is relatively large. At zero load, i.e. no reaction pressure, the slip is between 25% and 60%.
Patent DE-2328703-A1 (DE)
Title: Device for orientating reference plane generated by rotating laser - uses two or more photocells in a sensor plane
Inventor: HOPPE NORBERT
IPC: E02F3/84
Filed: 1973-06-06
Abstract: The sensor plane containing two or more sensors is parallel to the reference plane, and two or more of these sensor planes are parallel to and at a variable distance from each other. The whole system can be moved parallel to the reference plane. The distances between sensor planes are varied in the same direction by a screw whose pitch continuously varies; or it is varied by compression, with individual planes separated from each other by an elastic material.
Patent DE-2328809-A1 (DE)
Title: Cigarette or cigar extinguisher - has funnel reaching to water level in container
Inventor: TIMMERMANN ERNST
IPC: A24F13/18
Filed: 1973-06-06
Abstract: A frusto-conical hollow funnel body is attached at a perforation through the wall at the top of the container, with its smaller opening at the water level. PREFERABLY two opposed trunnions are fitted to the container, in a plane above the centre of gravity of the water-filled container, for attachment to arms of a mounting. The container may consist of two connected hemispheres, with the trunnions on the upper one.
Patent DE-2331711-A1 (DE)
Title: Selective electrolytic debromination of halo-benzenes - esp. 2,5-dichloro-3-bromo-6-alkoxy-benzyl derivs, gives prods used as pesticides
Inventor: BECHER HEINZ-MANFRED DR
IPC: C25B3/25
Filed: 1973-06-22
Abstract: cpds. of formula (I): (where R is lower alkyl and X is H, OH, NH2 or a group OR', SR', NHR' or NR'R" in which R' is lower alkyl or opt. subst. phenyl and R= is lower alkyl or opt. selectively debrominated by electrolysing in alkaline medium in an electrolytic cell divided by a diaphragm (cathode pref. Cu, Ni or Pb; cathode-chamber solvent pref. A water/lower alcohol mixture) to give debromo-cpds. of formula (II), some of which are known cpds. (IIe are useful as pesticides (esp. insecticides, acaricides and herbicides) and intermediates for pesticides.
Patent DE-2336083-A1 (DE)
Title: Keyboard switch with key to switch coupling - has actuator to which key motion is transmitted by offset switch coupling
Inventor: HUETTL FRIEDRICH
IPC: H01H13/70
Filed: 1973-07-16
Abstract: The keyboard switching assembly has several keys arranged in one plane next to each other and the effective width of the keys is greater than that of the switches, also arranged in one plane. Some switches have between the associated key and the switch actuator a coupling element, laterally offset relative the key, so that the key motion is transmitted to the associated actuator next to the key midaxis. The coupling element of at least one switch is offst to the other side of the respective key. The coupling element may be formed by an intermediate member connectable to the respective key or to the associated actuator of the respective switch. The member may afford coupling to an appropriate counter element.