baber/WOPTO huggingface dataset:
Patent DE-2150050-B2 (DE)
Title: Spiral central column supported staircase - has ring clamped recessed steps and handrail sections linking sloping struts
IPC: E04F11/032
Filed: 1971-10-07
Abstract: Struts supporting a handrail are attached to tread panels fixed to a central load bearing spindle, each being clamped to two successive panels, on the spiral staircase. Each tread panel (10) comprises a rectangular cut piece of sheet metal with longitudinal edges bent downwards, stiffened to a box shape with a semi-circular recess fitting against the spindle (14), and clamped against it by a ring round the spindle, and a friction locking screw. Struts (27) are inclined outwards, on the rear edge of one step and front edge of the next above, and have handrail sections formed with a loop or socket at the open end embracing the next strut above. Elements are light, and easily prefabricated, and permit easy assembly and dismentling of a heavily loadable staircase, of any pitch.
Patent DE-2231647-B2 (DE)
Title: AF amplifier for HI=FI equipment - has second channel with band-pass filter and dynamic compressor to adjust signal level to audio sensitivity
IPC: H03G9/18
Filed: 1972-06-23
Abstract: The AF amplifier, for radio receivers and hi-fi equipment, consists of a main channel comprising two amplifiers and at least one secondary channel containing an audio band-pass filter and a dynamic compressor (6, 8, 9). The compressor increases the level in the selected frequency band at low volumes so that it matches the curves of equal audio sensitivity. At greater sound volumes this increase increases only slightly in relation to volume. The compressor consists of a gain-controlled amplifier (6), and amplifier (8) and a rectifier (9) whose output controls the gain-controlled amplifier. The amplifier's filtered output (7) is added (3) to the main channel's signal.
Patent DE-2239181-B2 (DE)
Title: Reinforced concrete tunnel tubbings - trapezoidal or triangular excisions mirror each other over centre rib
IPC: E21D11/08
Filed: 1972-08-09
Abstract: Reinforced concrete tubbing supports for tunnels, galleries, roadways etc. has shaped excisions on the inner surface. In effect, two identical trapezoidal or triangular excisions face each other either side of a centre rib running parallel to the tunnel etc. axis, thus the tips or narrow sides of the triangles or trapezia lie on the two sides of this rib. The design has the advantage that the screws used for maintaining the assembly together can all be made the same length.
Patent DE-2454827-B2 (DE)
IPC: C25B9/19
Filed: 1974-11-19
Abstract: 1435477 Electrolysis anode with diaphragm HOOKER CHEMICALS & PLASTICS CORP 31 Oct 1974 [19 Nov 1973] 47252/74 Heading C7B An anode unit for a diaphragm cell comprises a porous anode having affixed to at least one face thereof a gas and liquid impermeable cationic permselective membrane made of a hydrolyzed copolymer of a perfluorocarbon and a fluorosulphonated perfluorovinyl ether and/or of a sulphostyrenated perfluoro ethylene-propylene copolymer. The membrane may be clamped or glued in position and may be pre-stretched in hot water and dried under tension before fixing. It may be supported on a PTFE cloth and SO 3 H groups therein may be hydrolyzed or chemically converted to SO 2 NH 2  after fabrication. A copolymer of TFE and is specified. The anode may be a mesh or screen of graphite or a valve metal optionally coated with one or more Pt metals or their oxides optionally with other oxides, e.g. R u O 2  with TiO 2 . It may have a core of Al, Cu or steel. Fe, graphite or steel cathodes are specified. The cell may have one or more intermediate compartments bounded by membranes as defined above and affixed on the cathode surface and/or between the anode and cathode. The anode compartment may be bounded on both sides by an anode unit as above with clamps holding the membrane stretched in place. Chlor-alkali production and HCl electrolysis are specified.
Patent IE-S80869-B2 (IE)
Title: A method for tracking printed circuit boards on multi-board panels through a production process
Inventor: CASEY JOHN CHARLES
IPC: H05K13/08
Filed: 1998-10-21
Abstract: A method for tracking printed circuit boards (2) during production, wherein a plurality of printed circuit boards (2a) to (2e) of different types are formed on a single multi-board panel (1) comprises the step of simultaneously forming with conductive tracks the printed circuit boards (2) a plurality of corresponding first identifiers (8a) to (8e) for identifying the printed circuit boards (2a) to (2e), respectively. Each first identifier (8a) to (8e) comprises a type code (11) which identifies the corresponding type or types of the printed circuit boards (2) together with a multiplier sign following by the number of printed circuit boards (2) of that type which are formed on the panel (1). The first identifiers (8) are formed in copper foil of the panel (1) by etching simultaneously with the etching of the electrically conductive tracks of the printed circuit boards (2). A second identifier (10) formed simultaneously with the first identifier identifies the batch of panels to which the panel (1) belongs. A list (14) of the type codes (11) of the first identifiers (8) is provided for enabling ready identification of the types of printed circuit boards (2) on the panel. The provision of the first identifiers (8a) to (8e) facilitates sorting of the printed circuit boards (2) as they are being detached from the panel (1). .
Patent JP-H07110848-B2 (JP)
IPC: C07C331/04
Filed: 1987-02-03
Abstract: Thioethers of the formula I 
<IMAGE>
 in which
 Ar denotes a phenyl radical, which may optionally be substituted by alkyl, alkenyl, alkoxy, alkylthio, alkanoyl, hydroxyl, hydroxyalkyl, carboxyl, alkoxycarbonyl, carbamoyl, nitro, amino or halogen,
 A denotes a straight-chain or branched, saturated or unsaturated C1-C8-alkylene radical, which may optionally be substituted by a hydroxyl group,
 n denotes the number 0, 1 or 2,
 B denotes a straight-chain or branched, saturated or unsaturated C1-C8-alkylene radical and
 R denotes 5-(1H)-tetrazolyl 
<IMAGE>
 CN, SCN, OH, halogen, 5-(1H)-tetrazolylthio 
<IMAGE>
 where
 R1 represents hydrogen, alkyl which may optionally be substituted by cycloalkyl, alkenyl, cycloalkyl, aralkyl and aryl, where the aromatic moiety may be substituted by alkyl, alkenyl, alkoxy, alkylthio, alkanoyl, hydroxyl, hydroxyalkyl, carboxyl, alkoxycarbonyl, carbamoyl, nitro, amino and halogen,
 and their pharmacologically tolerable salts are used for controlling allergic diseases.
Patent JP-H0450431-B2 (JP)
IPC: D21F1/00
Filed: 1984-02-22
Abstract: A forming fabric for use e.g. in the papermaking industry. The fabric comprises a first weave (1) including weft threads (4) and warp threads (3), and a second weave (2) which is interconnected with the first weave, said second weave comprising coarser weft threads (6), which interweave with warp threads (5) arranged in groups of at least two threads. The warp threads (5) of each group run in parallel, with each other and weave alike with the weft threads (6) of the second weave (2).
Patent JP-3111035-B2 (JP)
IPC: C23C2/00
Filed: 1997-01-31
Granted: 2000-11-20
Abstract: A hot dip coating pot (12) for containing a coating material in a liquid state comprising a substantially horizontal bottom (24) and substantially vertical side walls (22). The bottom and the side walls define a first interior volume for containing the coating material. The bottom wall and a lower portion of each of the side walls defines a bottom portion (42) which is separable from an upper portion of the side walls. The bottom portion has a predetermined interior volume less than the first interior volume. <IMAGE>
Patent JP-H0680286-B2 (JP)
IPC: F01K25/00
Filed: 1984-03-07
Abstract: An improved engine system is provided which includes a synthetic low temperature sink that is developed in conjunction with an absorbtion-refrigeration subsystem (23) having inputs from an external low-grade heat energy supply (21) and from an external source of cooling fluid (24). A low temperature engine is included which has a high temperature end (22) that is in heat exchange communication with the external heat energy source (21) and a low temperature end (36) in heat exchange communication with the synthetic sink provided by the absorbtion-refrigeration subsystem (23). By this invention, it is possible to vary the sink temperature as desired, including temperatures that are lower than ambient temperatures such as that of the external cooling source. This feature enables the use of an external heat input source that is of a very low grade because an advantageously low heat sink temperature can be selected.
Patent JP-3276166-B2 (JP)
IPC: F15B11/028
Filed: 1992-03-11
Granted: 2002-04-22
Abstract: In a control device (S) for a hydraulic motor (V) which is adapted to be acted upon at both sides, there are provided  working conduits (4, 5) which are alternately connectable via a directional control valve (C) to a pressure source (P) and a tank (T), a load holding valve (H) which is hydraulically openable in a controlled way and is arranged in at least one working conduit (4), as well as a control pressure conduit (13) which is connected to the opening side (16) of said load holding valve (H), with pressure variations arising during the controlled opening of the load holding valve, and the amplitudes of the pressure variations being adapted to be dampened in the control pressure conduit (13) at least via a damping throttle (D). To dampen and eliminate the undesired effect of changes in the viscosity of the pressure medium and/or of a damping throttle which is too tightly set, the damping throttle (D) can be bypassed in both directions by a respective check valve (R1, R2, R1', R2,), a great biasing force which biases the one check valve being adjusted to a value which lies between the pressure values of the pressure extremes that act on said check valve and pertain to at least the first amplitude and the next amplitude of the pressure variations.
Patent JP-3349111-B2 (JP)
IPC: H01L23/28
Filed: 1999-03-15
Granted: 2002-11-20
Abstract: PROBLEM TO BE SOLVED: To suppress aging of wavelength converting materials by preventing wavelength converting materials, such as a fluorescent substance from being affected by ultraviolet rays from the outside part, in a surface mounting type light emitting diode. SOLUTION: This diode 11 is provided with a light emitting diode element 15 loaded on the upper face of a glass epoxy substrate 12, a reflecting frame 21 arranged in the periphery, a first resin sealing body 25 packed in the reflecting frame 21 for sealing the light emitting diode 15, a second resin sealing body 27 packed at the upper face side of the glass epoxy substrate 12 including the reflecting frame 21, while leaving an upper outer peripheral part 12a of the glass epoxy substrate 12 and a third cap-shaped resin sealing body 28 adhered and fixed to the upper outer peripheral part 12a of the glass epoxy substrate 12 with which the upper face and peripheral side face of the second resin sealing body 12 are covered. Then, wavelength converting materials are mixed into the first resin sealing body 25, and ultraviolet absorbent is mixed into the third resin sealing body 28.
Patent JP-H0650607-B2 (JP)
IPC: H01H33/10
Filed: 1985-04-04
Abstract: In an arc quenching device a quenching chamber filled with sulfur hexafluoride is provided with a plurality of superimposed overlapping ascending quenching plates having openings defining arc inlets. A movable contact cooperating with a stationary contact is insertable via the arc inlets into the quenching chamber.
Patent JP-4187345-B2 (JP)
IPC: G01R31/319
Filed: 1999-03-29
Granted: 2008-11-26
Abstract: A restoration processor (16) processes compressed data series and the substitute control data is formed by the generation of the substitute control data for each of the unit files in order to restore the compressed data series using the substitute control data and to produce so restored data series. An independent claim is included for: (a) a method for compressing and restoration of compressed data
Patent JP-H0780153-B2 (JP)
IPC: B26D7/06
Filed: 1990-04-05
Abstract: A machine is described for cutting large diameter wound logs of paper or similar web material such as toilet tissue and the like into relatively small discs for use specially in institutional dispensers. The machine includes a cradle and transport means (5) for inserting a large diameter log (B) of paper into a gripper (23) which holds the log securely and stationary while a band saw (7) cuts the discs of paper from the log. The gripper (23) includes a ring through which the log passes, said ring including a plurality of radially movable plungers which support and retain the log within the ring while the band saw is cutting a disc from the log. The mechanism also includes an automatic guide and sharpening station for maintaining the sharpness of the band saw and, furthermore, includes a support and discharge mechanism for removing the discs of paper from the gripper.
Patent JP-H0696200-B2 (JP)
IPC: B21D28/00
Filed: 1989-04-14
Abstract: In a hydraulic control device for the drive control of a double-acting hydraulic cylinder with a relatively large driving face and a relatively small counterface on its driving piston, a direction- and- motion-control valve is provided in the form of a follow-up control valve which operates with electrically controllable desired position value stipulation and mechanical actual position value feedback. The pressure supply unit provides two supply pressures PN and PH of different magnitude. A pressure-controlled pressure changeover valve is provided which switches over to high supply pressure as required if the load increases. Also provided is a face changeover valve, likewise pressure-controlled, which, after the pressure changeover valve has switched over to higher supply pressure, switches over from differential operation of the hydraulic cylinder to pressurisation on one side of its piston, on the larger piston face of the latter, or, if the requirement for propulsive force has decreased again, after the pressure changeover valve has for this reason switched back to lower supply pressure, for its part switches back to differential operation of the hydraulic cylinder. 
<IMAGE>
Patent EP-1490524-B2 (EP)
Inventor: SCHWARTZ ROLF-JOSEF
IPC: C21D1/667
Filed: 2003-03-17
Granted: 2009-01-21
Abstract: The invention relates to a method and a device for convective heat transfer between a heat transfer medium and a surface, in particular the front face of a wound metal strip in the form of a coil, said surface being impinged upon by the heat transfer medium by means of at least one nozzle wall. The heat transfer medium can be a fluid or a gas. The device is characterised in that at least one of the nozzle walls (10; 11) and the surface to be impinged are mutually mobile during the heat treatment. In a preferred embodiment of the invention, the nozzle walls can be rotated about a rotational axis (71), which corresponds to the primary axis (70) of the coil, or is substantially parallel to said primary axis.
Patent EP-1529302-B2 (EP)
Inventor: RÖSNER NORBERT
IPC: H01H71/08
Filed: 2003-08-07
Granted: 2017-05-24
Abstract: The switching device has an insulating housing (2), each switch pole having incoming and outgoing contacts (4) provided with respective terminals (41) for connection with an external electrical lead, at least one of the contacts having a second terminal (42) for connection with a second electrical conductor, positioned between its opposite ends, respectively provided with the first external electrical lead terminal and a stationary switch contact (43). Each second terminal can be provided by an opening for reception of an electrical conductor pin contact.
Patent EP-1627036-B2 (EP)
Inventor: SHIDAHARA YASUHIRO
IPC: C11D3/02
Filed: 2004-05-26
Granted: 2015-06-17
Abstract: A process for releasing fragrance comprising the step of treating a) a perfume emulsified with one or more substances having emulsification actions, with b) demulsifying agent capable of demulsifying at least one of the substances having emulsification actions.
Patent EP-2001533-B2 (EP)
Inventor: MENOT SÉBASTIEN
IPC: A61M5/152
Filed: 2007-03-17
Granted: 2019-07-10
Abstract: Medical liquid injection device comprising the following distinct elements : a container (1), an outlet channel (14) and a pumping unit (5); said container (1) comprising a rigid wall on which said pumping unit (5) is rigidly fixed; said rigid wall furthermore including a passage (4) which forms a direct fluid connection between said pumping unit (5) and said container (1); said outlet channel (14) being directly connected to said pumping unit (5) in such a way that a fluid initially kept in said container (1) may first flow through said pumping unit (5) and then reach said outlet channel (14), said medical liquid injection device furthermore comprising an inlet (16), distinct from said outlet channel (14).
Patent EP-2134611-B2 (EP)
Inventor: BIESHEUVEL AREND CORNELIS JACOBUS
IPC: A47J31/24
Filed: 2008-08-08
Granted: 2018-12-05
Abstract: The invention relates to a system, method and capsule for preparing a predetermined quantity of beverage suitable for consumption using an extractable product. The system comprises an exchangeable capsule, and an apparatus comprising a receptacle for holding the exchangeable capsule, and a fluid dispensing device for supplying a fluid to the exchangeable capsule. The exchangeable capsule comprises a circumferential wall, a bottom, and a lid. The wall, bottom and lid enclose an inner space comprising the extractable product. The receptacle comprises bottom piercing means intended for piercing an entrance area of an alternative capsule for creating at least one entrance opening for supplying the fluid to the extractable product. The entrance area of the capsule according to the invention comprises an entrance filter for supplying the fluid to the extractable product there through. In use, the entrance filter is positioned at a distance from the bottom piercing means, such that the capsule of the system is not pierced by the bottom piercing means.
Patent EP-0066607-B2 (EP)
IPC: A61M5/00
Filed: 1981-11-27
Granted: 1989-03-22
Abstract: The field of the invention is pressure measurement. The problem is the need for an effective, safe and reliable device for sensing fluid pressure in the tubing leading into a patient for administering parenteral fluids. The pressure detector of the present invention includes a conventional pressure diaphragm (19) having a flexible membrane (21) that is movable in accordance with the pressure of the fluid being administered. The pressure detector further includes a special receptacle (23) for retaining the pressure diaphragm, and a special follower assembly (25) that is moved in a prescribed fashion by installation of the diaphragm membrane due to variations in fluid pressure. A pair of electrical contacts (31a and 31b) are controllably moved together and apart by the follower assembly, to provide an electrical signal whenever the diaphragm is not installed or, if it is installed, whenever the fluid pressure exceeds a prescribed threshold.
Patent EP-0390809-B2 (EP)
Inventor: GETZMANN HERMANN
IPC: B02C17/16
Filed: 1988-11-09
Granted: 1996-10-23
Abstract: Un dispositif de broyage, notamment pour agglomérés fluides ou pâteux, comprend un logement (1) avec une chambre d'admission (2), une chambre de broyage (3) qui reçoit des billes à broyer et une sortie (4). Un agitateur (5) rotatif entraîné par un moteur (7) est agencé dans la chambre de broyage. Afin de pouvoir aisément comander l'avancement des matières à broyer indépendamment de la vitesse de rotation de l'agitateur, un réservoir (46) agencé en amont de la chambre d'admission (2) et pouvant être hermétiquement fermé est pourvu d'un raccordement à air comprimé (Fig. 1). Alternativement, une pompe peut être montée dans le réservoir et le raccordement à air comprimé peut être sélectivement échangé par un raccordement de reflux.
Patent JP-2582117-B2 (JP)
IPC: B60R22/42
Filed: 1988-04-30
Granted: 1997-02-19
Abstract: The web-locker retractor has a pair of identical clamping wedges 10 having teeth which are shaped to penetrate the material of a seat belt in order to displace the fibres of the material and engage therewith. Upon an engagement with the belt, the teeth interfit with those of one wedge fitting between those of the other. The teeth are arranged in arrays 12, 14 one of which is an offset mirror image of the other. The teeth of the two arrays are inclined oppositely to the direction of belt protraction. Posts 22, 26, 32 and sockets 20, 24, 30 on the wedges co-operate to restrain the wedges to move perpendicularly to the belt plane, against a biassing spring (not shown). Upon locking, the web locker does not deflect the belt and therefore does not have to overcome a component of the tensile load on the belt. A retractor of light construction is therefore possible.
Patent JP-H021765-B2 (JP)
IPC: C01B33/32
Filed: 1982-06-23
Abstract: This invention relates to the preparation of sodium metasilicate. More particularly, this invention relates to a process for the preparation of solid, crystalline, substantially anhydrous sodium metasilicate which comprises the steps of: (a) reacting an SiO2-containing material with a concentrated aqueous solution of sodium hydroxide in an SiO2 to Na2O molar ratio of from about 1.2:1 to 1:1.2 under elevated pressure and at an elevated temperature, to form a sodium metasilicate suspension; (b) filtering the suspension from step (a) to obtain a filter cake and filtrate; (c) crushing the filter cake from step (b) at elevated temperature; (d) removing water from the crushed filter cake to recover substantially anhydrous sodium metasilicate; (e) concentrating the filtrate from step (b); and (f) returning the concentrated filtrate from step (e) to the reaction mixture of step (a).
Patent JP-2873718-B2 (JP)
IPC: C07F9/00
Filed: 1990-05-11
Granted: 1999-03-24
Abstract: Vanadium-arenes [V(arene)2] (arene = benzene or mono-, di-, or poly-alkyl-substituted benzene) are obtained, with a high yield, by means of the reduction of a vanadium-arene iodide with zinc, manganese or iron in metal form, or with cobalt di-(cyclopentadienyl). Vanadium-arenes are useful in the preparation of catalyst components active in ethylene polymerization, or in the copolymerization of ethylene in an alpha-olefin.
Patent JP-H0614604-B2 (JP)
IPC: H03H5/10
Filed: 1982-07-16
Abstract: A method of using the temperature coefficient of the copper resistance of an oscillating coil to compensate for the temperature coefficient of the quality factor of the same oscillating coil. To this end, a voltage proportional to the copper resistance of the oscillating coil is generated across the oscillating circuit. The oscillator according to the process comprises an oscillating coil which comprises a high frequency litz wire. In order to access the copper resistance of the coil one of the litz wires is separated from the other wire at a first terminal of the coil and separately connected to a second terminal of this coil. From this second terminal, the coil is seen as a bifilar coil. A constant alternating current source is connected to the second terminal in order to generates across the oscillating circuit a voltage proportional to the copper resistance of the coil. The oscillator is preferably used for proximity switches having relatively large switching distance.