baber/WOPTO huggingface dataset:
Patent NO-159570-C (NO)
Inventor: WALKER GARY ELLIOTT
IPC: H04R7/18
Filed: 1984-02-20
Abstract: A ribbon speaker system comprising a three-element tweeter, midrange and woofer acoustical transducer unit is disclosed. The tweeter transducer consists of a single, elongated, corrugated aluminum ribbon positioned vertically and connected to the top and bottom of a rigid, elongated frame. Electrical connections are provided at the top and bottom to permit current flow along the length of the ribbon. The aluminum ribbon is located between sets of magnets which are designed to provide a shaped magnetic field that provides magnetic centering of the ribbon. Additional electromagnetic containment for the transducer ribbon is provided by electrical current passing through the ribbon which current returns to its source by means of flat ribbon conductors located on the surfaces of the magnet sets. 
<??>The midrange transducer consists of a single elongated corrugated aluminum ribbon positioned vertically and connected to an elongated frame similar to the tweeter transducer. However, unlike the tweeter transducer, the edges of the midrange ribbon are acoustically sealed to the frame by foam strips. In addition, desired dynamic properties of the ribbon are achieved by fabricating the aluminum ribbon with corrugations that extend at variable slant angles relative to the longitudinal axis of the ribbon. 
<??>The woofer acoustical transducer consists of an elongated, trapezoidal-shaped, corrugated aluminum ribbon that is supported on all sides and mounted vertically in a rigid, elongated frame. To provide a single electrical path through the ribbon it is divided by a series of horizontal cuts into a serpentine pattern. The ribbon is located directly in front of a rectangular array of ceramic magnets mounted on a steel backing sheet.
Patent NO-166909-C (NO)
Inventor: MOERDER KARL E
IPC: H04N7/167
Filed: 1985-03-13
Abstract: A system for reproducing in a descrambler of a subscriber communication network a subscriber key signal that is unique to the descrambler and was used in encrypting a key signal that must be decrypted for use in descrambling a signal received by the descrambler. The scrambled signal is received by the descrambler together with the encrypted key signal and a key generation number containing an address for accessing a predetermined area in a memory contained in the descrambler. The system includes a circuit for providing a subscriber key generation signal that is unique to the descrambler; a subscriber key generator for reproducing the unique subscriber key signal by processing the subscriber key generation signal in accordance with a predetermined encryption algorithm upon the algorithm being keyed by a prescribed subscriber key seed signal that is unique to the descrambler; a secure memory storing a plurality of different subscriber key seed signals, and for providing the prescribed seed signal to key the algorithm when the area of the memory containing the prescribed seed signal is accessed by the address contained in the received key generation number; and a circuit for accessing the first memory with the address contained in the received key generation number. The subscriber key generation signal is formed by combining the received key generation number with a unique subscriber address signal that is stored in a second memory of the descrambler.
Patent NO-168976-C (NO)
Inventor: BJOERKMAN AAKE
IPC: H01J61/30
Filed: 1986-05-22
Abstract: Acompact low-pressure mercury vapour discharge lamp comprises two or more straight tubes (2, 3) which are interconnected by means of couplings (4), to form a discharge chamber between two electrodes (15). The electrodes are located in the outermost ends (7,8) of the discharge chamber of the lamp, these ends being connected in a gas-tight manner to a lamp base (9) incorporating the requisite contact pins (11, 12) and conductors (16).Located downstream of the electrodes (15) in the direction of the discharge current are tube constrictions (13, 14) which define around the electrodes (15) the spaces in which released ions from the electrode emission material are held concentrated, so as to fall back onto the electrode surface upon a change in current phase.The method for manufacturing the lamp commences with a straight glass tube which is coated internally with luminescent powder. The tube is then heated around annular areas adjacent the tube ends. The constrictions (13, 14) are formed in the tube wall as the tube rotates, whereafter the lamp is manufactured in a manner known per se.
Patent NO-175927-C (NO)
Inventor: MELBER GEORGE E
IPC: B01J13/02
Filed: 1988-11-16
Abstract: Microsphere wet cake is mixed with a processing aid effective to prevent agglomeration and surface bonding of the microspheres, and thereafter removing water by drying with continuous mixing, optionally also under reduced pressure, i.e. vacuum drying. By the control of the application of heat and balancing temperature and the mixing, and optionally also the reduced pressure, it is possible to also control expansion of the microspheres from substantially none to substantially theoretical limits of expansion. The processing aid in the present invention is any one of a wide diversity of materials which meet the requirements of the intended function, i.e., to prevent the agglomeration of the microspheres during the process. Suitable materials include, by way of example, dry inorganic pigments or filler materials, and the like, and related organic materials.
Patent NO-169714-C (NO)
Inventor: COATES IAN HAROLD
IPC: A61K31/415
Filed: 1989-08-01
Abstract: The invention relates to tricyclic lactams of the general formula (I)   <CHEM>  wherein Im represents an imidazolyl group of the formula: <CHEM> and R<1> represents a hydrogen atom or a group selected from C1-6alkyl, C3-6alkenyl, C3-10alkynyl, C3-7cycloalkyl, C3-7cycloalkylC1-4alkyl-, phenyl, phenylC1-3alkyl-, -CO2R<5>, -COR<5>, -CONR<5>R<6> or -SO2R<5> (wherein R<5> and R<6>, which may be the same or different, each represents a hydrogen atom, a C1-6alkyl or C3-7cycloalkyl group, or a phenyl or phenylC1-4alkyl- group, in which the phenyl group is optionally substituted by one or more C1-4alkyl, C1-4alkoxy or hydroxy groups or halogen atoms, with the proviso that R<5> does not represent a hydrogen atom when R<1> represents a group -CO2R<5> or -SO2R<5>); one of the groups represented by R<2>, R<3> and R<4> is a hydrogen atom or a C1-6alkyl, C3-7cycloalkyl, C3-6alkenyl, phenyl or phenylC1-3alkyl- group, and each of the other two groups, which may be the same or different, represents a hydrogen atom or a C1-6alkyl group;  Y represents the group CH=CH or (CH2)n, wherein n represents 2 or 3; Q represents a halogen atom, or a group selected from hydroxy, C1-4alkoxy, phenylC1-3alkoxy-, C1-6alkyl, cyano, phenyl which may be unsubstituted or substituted by one or more C1-4alkyl, C1-4alkoxy or hydroxy groups or halogen atoms, -NR<7>R<8>, -CONR<7>R<8> or -(CH2)pCONR<7>R<8> (wherein R<7> and R<8>, which may be the same of different, each represents a hydrogen atom or a C1-4alkyl or C3-4alkenyl group, or together with the nitrogen atom to which they are attached form a saturated 5 to 7 membered ring; and p represents 1,2 or 3), -(CH2)qNR<9>R<1><0> (wherein R<9> represents a hydrogen atom or a C1-4alkyl group, and R<1><0> represents a group -COR<1><1> or -SO2R<1><1> wherein R<1><1> represents a C1-4alkyl group; and q represents 0, 1, 2 or 3), or -(CH2)2CO2R<1><1>(R<1><1> being as defined previously);  Q min  represents a hydrogen or a fluorine atom;  and physiologically acceptable salts and solvates thereof. The compounds are potent and selective antagonists of the effect of 5-HT at 5-HT3 receptors and are useful, for example, in the treatment of psychotic disorders, anxiety, and nausea and vomiting.
Patent NO-180541-C (NO)
Inventor: HALAZY SERGE
IPC: A61P35/02
Filed: 1991-07-03
Abstract: This invention relates to novel purine nucleoside phosphorylase inhibitors, to the methods and intermediates for their preparation and to their use as immunosuppressants, antilymphoma, antileukemic, antiviral and antiprotozoal agents.
Patent NO-176018-C (NO)
Inventor: HACKSELL ULI
IPC: C07C45/71
Filed: 1991-08-02
Abstract: PCT No. PCT/SE90/00806 Sec. 371 Date Aug. 7, 1991 Sec. 102(e) Date Aug. 7, 1991 PCT Filed Dec. 5, 1990 PCT Pub. No. WO90/07490 PCT Pub. Date Jul. 12, 1990.   <IMAGE>  (I)  A compound of formula (I), wherein X is O, CH2, S, SO or SO2; R is F or Cl; R1 is H, C1-C6 alkyl or C2-C6 alkenyl; R2 is H, C1-C6 alkyl or C2-C6 alkenyl; R3 is H, C1-C6, alkyl, a pharmaceutically acceptable salt thereof, an enantiomer thereof, and a pharmaceutically acceptable salt of said enantiomer for use in therapy. A pharmaceutical preparation containing as active ingredient any one of said compounds. A process for the preparation of a compound of formula (I).
Patent NO-178217-C (NO)
Inventor: OSTMAN HAAKAN
IPC: B01D12/00
Filed: 1991-10-04
Abstract: PCT No. PCT/FI90/00094 Sec. 371 Date Dec. 5, 1991 Sec. 102(e) Date Dec. 5, 1991 PCT Filed Apr. 6, 1990 PCT Pub. No. WO90/11809 PCT Pub. Date Oct. 18, 1990.The invention relates to a continuous-working process and apparatus for replacing the liquid in a liquid suspension of a fibrous material with another liquid by forming of this material a bed on a moving filter surface and by displacing the liquid present in this bed with the other liquid. The bed of material is formed on a cylindrical filter surface installed in a vertical orientation below the liquid surface in a container and conveys it continuously forward filtration and several successive liquid displacements effected by maintaining a hydrostatic pressure difference across the formed bed, which is conveyed continuously horizontally forward, and through it there flow liquids horizontally during the filtration and liquid displacement.
Patent CA-2008137-C (CA)
Title: Light waveguide sensor for small or pressing forces
Inventor: LESSING RAINER
IPC: G01B11/16
Filed: 1990-01-19
Granted: 1997-03-11
Abstract: A light waveguide sensor for small pulling or pressing forces comprises a primarily coated light waveguide, a coil wound on the light waveguide and composed of an element having a diameter which is smaller than a diameter of the primarily coated light waveguide, a casing surrounding the primarily coated light waveguide and the coil and composed of a fiber reinforced synthetic plastic material with longitudinally extending, pulling resistant fibers embedded in a synthetic plastic matrix, the coil being composed of a plurality of coils arranged in cross-lay relative to one another on the light waveguide and each having a pitch length greater than 2.2 times the diameter of the primarily coated light waveguide.
Patent CA-2015240-C (CA)
Title: Cover element for a bearing
Inventor: ROUSE WILLIAM
IPC: F16C33/72
Filed: 1990-04-24
Granted: 1993-01-05
Abstract: ABSTRACT OF THE DISCLOSURE          COVER ELEMENT FOR A BEARING             Bearings of the pillow block type ace protected by a cover which extends over the pillow block and is shaped to substantially  follow  the  contour  of  the  pillow  block  and includes a slit from a lower edge of the device to an opening for allowing the shaft to pass into the cover to the opening.      The cover is formed from polypropylene which is highly flexible and resistant to impact damage.   Grease can be inserted into a recess or clearance between the end face of the bearing and the inside surface of the cover. In an alternative arrangement, the cover can be formed in two parts to be clamped on respective sides  of  plates  supporting  the  bearing.    Again  there  is provided a slit and a central opening to be inserted over the shaft.
Patent CA-2024765-C (CA)
Inventor: MOSTASHARI SCOTT S
IPC: H04L69/40
Filed: 1990-09-06
Granted: 2002-12-17
Abstract: A method by Which the each module of a token passing local area network complying with IEEE standard 802.4 determines if the communication cable from which it is receiving signals is faulty and switches to a second, or redundant cable. Each module transmits the same signals over both cables, but can receive signals from only one, its selected cable. In normal operations, all modules receive signals from the same cable. Each of the modules has the capability of detecting faults in its selected cable, and of switching cables so that its second cable becomes its selected cable. Each module also has the capability of initiating the process of re-establishing the network whenever a module switches cables in response to detecting a fault. Each module in response to the process of initiating re-establishing the network, switching cables so that all modules are listening to, or receiving signals from the same cable. Each module periodically checks to determine if low level noise is present on its selected cable, and if it is, the module switches cables.      A module in the listen only mode of operation will periodically check to determine if the signals it is receiving or valid. If not, it will switch cables. A module whose redundant cable has been identified as being silent, will periodically check to determine if its redundant cable remains silent.
Patent CA-2028542-C (CA)
Title: Mobile ballast plow for receiving and distributing track ballast
Inventor: THEURER JOSEF
IPC: E01B27/06
Filed: 1990-10-25
Granted: 2000-01-04
Abstract: A mobile ballast plow comprises a machine frame supported on a railroad track by undercarriages for mobility in an operating direction, a ballast conveying device arranged on the machine frame to receive ballast and to convey the received ballast to a discharge end of the device, and a power-driven ballast storage silo arranged on the machine frame to receive the conveyed ballast from the discharge end of the ballast conveying device. The silo has a ballast discharge opening and a ballast conveyor band extending in the direction of the longitudinal extension of the machine frame and forming a bottom support for the ballast received from the ballast conveying device discharge end, the ballast conveyor band having an end discharging the ballast into the ballast discharge opening. A ballast plow arrangement receives and distributes ballast discharged from the opening.
Patent CA-2035408-C (CA)
Title: Integrated optical signal amplifier
Inventor: LERMINIAUX CHRISTIAN
IPC: G02B6/00
Filed: 1991-01-31
Granted: 2001-03-27
Abstract: An optical signal amplifier with a waveguide path integrated into a glass body that is doped with optically active material. The signal to be amplified is transmitted through the waveguide and the pump power is coupled into the waveguide at one end. The waveguide comprises closely spaced adjacent guide lengths in the form of a spiral, zigzag paths between mirrors, or parallel paths with connecting semicircles at alternating ends of succeeding pairs of paths.
Patent CA-2037940-C (CA)
Title: System for temperature determination and calibration in a biomedical thermometer
Inventor: GOLDBERG JACK
IPC: A61B5/01
Filed: 1991-03-11
Granted: 1996-07-30
Abstract: An infrared detector receives infrared energy from the target and provides a detector signal based primarily on the difference between the infrared detector temperature and the temperature of the reference temperature area of the detector. A contact temperature measurement device provides a reference signal which is a function of the temperature of the reference temperature area of the detector. A processor receives the detector and reference signals and combines the two signals in a non-linear manner to result in a signal which is representative of the temperature of the target. The method of non-linearly combining includes the use of gain and offset terms which may be altered to a limited extent by a technician in the field with a blackbody calibration source. As a result of the recalibration, accurate target temperature measurements are continually provided. Additionally, the method of non-linearly combining includes the use of additional gain and offset terms which are adjusted to account for the infrared radiation characteristics of an anatomical target as compared to blackbody calibration source targets.
Patent CA-2041326-C (CA)
Title: Crop blower
Inventor: GULLICKSON ZAN
IPC: A01D57/10
Filed: 1991-04-26
Granted: 1995-11-28
Abstract: A crop blower for a combine harvester.  An elongated, tubular housing has a convex outer surface on a first side and a concave outer surface on a second side.  There is a fan having a central shaft extending parallel to the housing and spaced-apart from the concave surface thereof.  The fan has a plurality of groups of blades.  Each group of blades has a plurality of spaced-apart blades which are generally parallel to the shaft and operatively connected thereto.  There is a bearing support for the fan mounted on the housing near each end of the housing and between adjacent groups of blades.  Each bearing support between adjacent groups of blades includes a U-shaped member extending about the convex surface of the housing.  The shaft is rotatably mounted on the bearing supports.  There is a motor for rotating the fan and a mount on each end of the housing for mounting the crop blower on a combine harvester.
Patent CA-2047439-C (CA)
Inventor: HORI SATOSHI
IPC: G01M99/00
Filed: 1991-07-22
Granted: 1999-08-31
Abstract: A fault diagnosis device searches for causes of fault of a device under test via a fault tree having a tree structure corresponding to the hardware organization of the device under test, where the nodes of the fault tree correspond to the units of the device under test. Some of the nodes including the root node have three or more child nodes. A test table associated with each node other than a leaf includes: a description of parameters to be detected by detector units; test conditions with respect to the parameters detected by the detector units; and fault probability table representing the fault probability values and the child node names corresponding to the respective patterns of results of the tests. The whole fault tree may be divided into a main fault tree stored in the main memory and fault branch trees stored in auxiliary memory. Then, the fault branch trees are loaded into the main memory when needed.
Patent CA-2047786-C (CA)
Title: Anticorrosion coating composition
Inventor: HIGASHIYAMA TAKAO
IPC: C23C22/74
Filed: 1991-07-24
Granted: 1996-10-08
Abstract: An improved anticorrosion  coating composition for metals is disclosed.      Known anticorrosion coating  compositions are comprised  of (1) a chromic  acid  compound,  or a chromic acid compound  and a boric acid compound, (2)  powdered zinc, aluminum, or alloy mixture thereof, and (3)  a  (poly) glycol  compound and solvent.  The  anticorrosion coating  composition of the present invention replaces a portion of the  chromic  acid component in known anticorrosion  compositions with  a  nickel and/or  cobalt compound  soluble in water and/or soluble in  a water-miscible organic solvent.  This composition exhibits  better corrosion protection in more severely corrosive  environments  than known anticorrosion coating compositions and with  a reduced content of harmful hexavalent chromium.
Patent CA-2051349-C (CA)
Title: Method of manufacturing thermoplastic-resin molded optical member
Inventor: NISHIGUCHI MASAKI
IPC: B29D11/00
Filed: 1991-09-13
Granted: 1994-10-18
Abstract: A method of manufacturing thermoplastic-resin molded optical members having those sequential processes including the following, a process for feeding thermoplastic-resin material into a mold, a process for deforming thermoplastic-resin material in vacuo at spe-cific temperature causing the loaded thermoplastic-resin material to turn into flowing, and a process for producing molded optical member by gradually cooling off the mold in the upward direction from the bottom side while pressurizing the mold with inert gas.  It is desired that the inner surface of the mold be preliminarily coated with fluoroplastic containing either fluorinated alicyclic group or fluorinated heterocyclic group in the main chain.
Patent CA-2058327-C (CA)
Title: Clamping and tensioning device
Inventor: MERKEL GERD
IPC: B41F27/12
Filed: 1991-12-23
Granted: 1995-06-20
Abstract: The invention relates to a clamping and tensioning device for printing machines, by means of which printing plates are clamped and tensioned.            In order to achieve a defined clamping and tensioning force, as well as a design of such a device which is suitable for automation, a tensioning bar (1) and a clamping bar (2) are arranged in such a manner that its clamping surfaces (3, 4) for gripping the bent end of a printing plate (5) are positioned opposite each other in radial direction. The tensioning bar (1) is designed as a swingable double lever, whereby the tensioning bar (1) is swingable against the force of tension springs (7) by means of at least one adjustment element (6). The clamping bar (2), too, is designed as a swingable double lever being connected with the tensioning bar (1), whereby the clamping surface (4) of the clamping bar (2) can be pressed against the corresponding clamping surface (3) of the tensioning bar (1) with a clamping force suitable for holding the printing plate (5). The clamping bar (2) has a holding element (9) which cooperates with a fixed stop (10) in such a way that the clamping bar (2), through the actuation of the adjustment elements (6), is swung against the force of the clamping springs (8).
Patent CA-2062649-C (CA)
Title: Power conversion apparatus
Inventor: SANADA KAZUNORI
IPC: H02M5/27
Filed: 1992-03-11
Granted: 1998-02-17
Abstract: A power conversion apparatus includes:  a reference signal generating circuit for generating a reference signal which has a first frequency; a first power converter for converting D.C. power into A.C. power which has the first frequency; a transformer connected to the first power converter; a carrier signal generating circuit for generating a carrier signal which has a second frequency which is higher than the first frequency; a second power converter having a plurality of switching devices and as well as converting the output from the transformer into A.C. power which has the second frequency; a command signal generating circuit for generating a command signal for commanding the quantity of the output from the second power converter; and a second-power-converter control circuit for generating a drive signal for driving a plurality of the switching devices of the second power converter in such a manner that the drive signal is generated in response to the reference signal generated by the reference signal generating circuit and a command signal generated by the command signal generating circuit and as well as in synchronization with the carrier signal generated by the carrier signal generating circuit.
Patent CA-2064444-C (CA)
Title: Catalysts and processes for the manufacture of vinyl acetate
Inventor: BARTLEY WILLIAM J
IPC: C07C69/15
Filed: 1992-03-30
Granted: 2001-08-21
Abstract: A shell impregnated catalyst for use in the production of vinyl acetate from ethylene, acetic acid and an oxygen containing gas is provided. The catalyst has a productivity of greater than 661 grams of vinyl acetate per hour per litre of catalyst at 150°C and consists essentially of: (1) a catalyst support having a particle diameter from about 3 to about 7mm and a pore volume of 0.2 to 1.5 ml per gram (2) palladium and gold distributed in the outermost 1.0 mm thick layer of the catalyst support particles, and (3) from about 3.5 to 9.5% by weight of potassium acetate.      The catalyst is characterised by having a gold to palladium weight ratio in the range 0.60 to 1.25.