baber/WOPTO huggingface dataset:
Patent CA-2060274-A1 (CA)
Title: Process and plant for the production of urea with differentiated yield reaction spaces
Inventor: PAGANI GIORGIO
IPC: C07C273/04
Filed: 1992-01-29
Abstract: A B S T R A C T            Process  for  the  industrial synthesis  of  urea,  in  which ammonia  (NH3)  and carbon dioxide (CO2) are  reacted  in  at least  one reaction space SR at high temperature and pressure and  the unreacted  materials  are  treated  in  a  recovery section,  said  synthesis comprising:  a) a reaction  between highly  pure reagents;  and b) a reaction between  less  pure reagents  substantially recycled from said recovery  section, characterized  by  the  fact that reaction stage A  for  high yield majority synthesis (HEPC),  between very pure reagents, operating  at a higher pressure (Pmax) for example above  300 kg/cm2  abs  and  preferably at  about  400  kg/cm2  abs,  is followed  by a flash stage F1 operating at pressures lower by at least 40% than said pressure (Pmax) preferably lower  than 200 kg/cm2 abs, the gas effluent GF1 from the above-mentioned flash  stage  F1 being fed to reaction stage B for  minority synthesis of less pure reagents operating at a pressure below 200 kg/cm2 abs, while the liquid effluent EL1 from the above-mentioned flash stage, together with effluent EB from stage B of  minority  reaction  operating in parallel  with  majority reaction stage A,  feeds a recovery section RE consisting  of two  decomposition stages D1 and D2 operating in series:  the first  D1  being  at a pressure lower than   100  kg/cm2  abs preferably  at 50 kg/cm2 abs;  the second D2 operating  at  a pressure  lower  than 50 kg/cm2 abs preferably at  20  kg/cm2 abs.
Patent CA-2064236-A1 (CA)
Title: Process for preparing bafbr:eu phosphors
Inventor: FERRETTI AUGUST
IPC: C09K11/61
Filed: 1990-07-09
Abstract: A process for producing BaFBr:Eu phosphors in which a slurry of an Eu halide, BaFBr and BaBr2 is spray dried to produce spherical agglomerates which are then fired and cooled by an inert atmosphere, washed to remove unreacted BaBr2 and dried to produce a powder.
Patent CA-2065410-A1 (CA)
Title: Assay for enzyme activity
Inventor: WILTON DAVID C
IPC: C12Q1/44
Filed: 1990-09-03
Abstract: A method of assay for an enzyme catalysing the release of long chain fatty acids or, conversely, for an ester substrate for such enzymes is applicable to clinical samples and comprises removing substantially all the albumin from the clinical sample, incubating the sample after albumin removal with, for enzyme assay, an ester substrate or, for substrate assay, the enzyme, under conditions effective to release a fatty acid, causing the fatty acid to bind to a fatty acid binding protein and assaying the binding of the fatty acid to the binding protein.
Patent CA-2066733-A1 (CA)
Title: Method for growing enzyme crystals
Inventor: VISURI KALEVI
IPC: C30B7/08
Filed: 1990-10-11
Abstract: In a process for growing enzyme crystals small crystals are continuously removed from a crystallizer, dissolved and returned to the crystallizer to maintain a supersaturated state. The method permits the growing of large crystalline enzymes of uniform size or the coating of solid materials with crystalline enzymes.
Patent CA-2068058-A1 (CA)
Inventor: SHIMMELL DENNIS S
IPC: B22D17/20
Filed: 1992-05-06
Abstract: A method and apparatus for closed shot die casting is disclosed in which a molten metal filling cylinder is provided intersecting a shot sleeve in fluid communication with a filling hole in the shot sleeve.  Molten metal is introduced into the filling cylinder.  The molten metal passes from the filling cylinder through the filling hole into the shot sleeve until the shot sleeve is completely filled with molten metal.  The filling cylinder includes a piston-like, reciprocating internal valve which moves into position to seal off the filling hole.  As a result, the shot sleeve is completely filled with molten metal and pressure-sealed prior to the advancement of the shot plunger.
Patent CA-2070543-A1 (CA)
Inventor: KO JUNG-WAN
IPC: H04N5/14
Filed: 1992-06-05
Abstract: In a motion detector operative on a composite video signal comprising chrominance, signal components as well as a luminance signal component, the chrominance signal components are suppressed by a filter that removes only diagonal high frequencies in the spatial-frequency domain. These diagonal high frequencies in the spatial-frequency domain include the chrominance signal components of the composite video signal in accordance with a standard such as the NTSC standard. Motion detection is improved by reason of including more of the spatial high-frequency components.
Patent CA-2073581-A1 (CA)
Title: Cab signalling system utilizing coded track circuit signals
Inventor: COLBAUGH MICHAEL E
IPC: B61L3/24
Filed: 1992-07-10
Abstract: A railway vehicle cab signalling system providing electrical signals to operate an aspect display unit or the like located on-board a railway vehicle based upon the track circuit signals typically used to operate wayside indicators.  Sensor means detect the track circuit current as it passes through at least one wheel and axle set on the vehicle.  Processing means receive an output signal from the sensor means and produce a signal to operate the aspect display unit.
Patent CA-2074660-A1 (CA)
Inventor: RISCH CHARLES
IPC: B21K7/02
Filed: 1992-07-24
Abstract: PROCEDE DE FABRICATION D'UN SECTEUR DE TRANSITION D'UN RAIL ET RAIL AINSI OBTENU Les deux extrémités du rail ont des sections (22a)(22b) différentes tandis qu'une zone de transition progressive d'une certaine longueur (Lb) est prévue entre ces deux extrémités. La déformation est réalisée par forgeage à chaud entre deux matrices déplaçables.
Patent CA-2075434-A1 (CA)
Title: Folding chair with articulating device for full nesting of legs in the closed position
Inventor: KOLBERG JUSTUS
IPC: A47C4/20
Filed: 1992-08-06
Abstract: FOLDING CHAIR WITH ARTICULATING DEVICE FOR FULL NESTING OF LEGS IN THE          CLOSED POSITION          ABSTRACT          A folding chair comprising two pairs of legs (1a, 2a) and a seat (4) articulated to one another, characterized in that between front legs (1a) and rear legs (2a) there is located a locking device (5) having one end rotationally integral with rear leg (2a) and the opposite end rotationally integral with a fixed member (7) projecting transversally from the rear face of front leg (1a), there also being provided locking facilities (8,9,7a) to arrest the rotation of such articulating device (5) at the opposite positions of opening and closure.
Patent CA-2076379-A1 (CA)
Title: Sewing machine with automatic latch back device
Inventor: PRICE ELVIN C
IPC: D06G3/04
Filed: 1991-12-19
Abstract: SEWING MACHINE WITH AUTOMATIC LATCH BACK DEVICE     ABSTRACT        An apparatus and method for creating an overlock stitch wherein the excess thread chain (65) extending from the sewing machine needles (19) and the hollow chaining (32) to the previously sewn garment part (60) is stretched and is cut by thread chain cutter (70) to create a leading thread chain of predetermined length extending from the sewing machine needle and the hollow chaining tongue. When cut, the thread chain recoils toward the hollow chaining tongue, and a stream of air draws the free end of the thread chain into the hollow chaining tongue.  When the next workpiece is moved through the sewing area, the thread chain in the hollow chaining tongue is attached to the workpiece and is progressively drawn out of the hollow chaining tongue and oversewn in the overlock stitch.
Patent CA-2080944-A1 (CA)
Title: Electronic postage meter assembly enabling connection of any printwheel-setting motor connector to any printwheel-setting motor
Inventor: MALIN RICHARD A
IPC: B41J1/24
Filed: 1992-10-20
Abstract: A postage meter comprises a non-volatile memory and a microcomputer in communication with the non-volatile memory and a plurality of stepper motors. Positioning commands from the microcomputer are directed to the plurality of stepper motors and includes a plurality of respective stepper motor drivers. Each of the stepper motors are arranged for positioning at least one printwheel. The non-volatile memory has stored therein data for associating each of the stepper motor drivers with a respective printwheel wherein the positioning of a selected printwheel is commanded in accordance with the data relating printwheel to stepper motor driver stored in the non-volatile memory.
Patent CA-2085514-A1 (CA)
Title: Solid wood spring blade
Inventor: HUESLER BEAT
IPC: A47C23/06
Filed: 1992-12-16
Abstract: A spring blade made from solid wood layers (11, 12, 13) for seats and beds has at least one and at the most four glue layers or joints (8a, 8b), which are approximately perpendicular to the lateral surface (5) having the greatest extension and which interconnect the individual solid wood layers. In the individual solid wood layers the annual rings in full or semi comb grained cut are inclined to the lateral face.
Patent CA-2085771-A1 (CA)
Inventor: TERAUCHI KIYOSHI
IPC: F16H23/02
Filed: 1992-12-18
Abstract: A swash plate type compressor with a variable displacement mechanism is disclosed. The compressor includes a compressor housing having a cylinder block provided with a plurality of cylinders and a crank chamber. A piston is slidably fitted within each of the cylinders and is reciprocated by a drive mechanism.   The drive mechanism includes a drive shaft rotatably supported by the compressor housing, a pair of rotor plates fixed on the drive shaft and a swash plate having a surface with an adjustable incline angle or tilt. The rotor plates are arranged on opposite sides of the swash plate. The swash plate converts the rotating motion of the drive shaft into the reciprocating motion of the pistons which are coupled to the swash plate throughbearings. A pair of hinge coupling mechanisms hingedly connect an arm portion of the swash plate to an arm portion of each of the rotor plates to permit variations in the incline angle or tilt of the swash plate. The two hinge coupling mechanisms include two arm portions extending from opposite sides of the swash plate and an arm portionextending from each of the two rotor plates. The combination and arrangement of the two hinge coupling mechanisms on opposite sides of the swash plate reduces gas compression reaction forces acting thereon so that wear and deterioration thereof can be prevented to thereby increase the life of the compressor and enable effective control of the capacity of the compressor through adjustnents in the incline angle or tilt of the swash plate.
Patent CA-2086559-A1 (CA)
Title: Apparatus for turning workpieces moved forward in a flat position
Inventor: ACHELPOHL FRITZ
IPC: B65G47/244
Filed: 1992-12-23
Abstract: APPARATUS FOR TURNING WORKPIECES MOVED FORWARD IN A FLAT POSITION                        ABSTRACT           The invention concerns an apparatus for turning workpieces moved forward in a flat position.  The apparatus comprises a turning station including at least one delivery conveyor  for  advancing  a  flat  workpiece,  an  overhead engagement conveyor for eccentrically engaging the workpiece between a delivery conveyor and the overhead engagement conveyor,  a  table  surface  for  frictionally  engaging  a portion of the work piece and turning it, and at least one transfer conveyor for advancing the turned workpiece in its prescribed orientation.  The conveyors may be supported at different levels with respect to the table surface;  for example the delivery conveyors may travel through openings in the table surface permitting the upper strand of the conveyor to travel above the table surface while the lower strand travels below it.  Similarly the transfer conveyors may  be  completely  below  the  table  surface  with  pegs protruding through slots in the table surface.  This system, unlike  known  systems,  has  the  advantage  that  all  of conveyors  are  operated  at  the  same  linear  speed,  thus simplifying construction and control.
Patent CA-2086997-A1 (CA)
Title: Production of rigid polyurethane foams, and a blowing agent mixture for this purpose
Inventor: VOLKERT OTTO
IPC: C08G18/08
Filed: 1993-01-08
Abstract: The invention relates to a process for the production of rigid polyurethane foams using  a  specific blowing  agent  mixture of  highly fluorinated  and/or  perfluorinated  organic  compounds, cyclopentane and, if desired, aliphatic and/or further cycloaliphatic hydrocarbons having 4 to 8 carbon atoms.
Patent CA-2090105-A1 (CA)
Title: Protein polyligands joined to a stable protein core
Inventor: SOULILLOU JEAN-PAUL
IPC: A61K47/48
Filed: 1991-08-22
Abstract: Stable polyligands are provided by preparing fused proteins, where the fused protein comprises a ligand at one terminus and a subunit or a multimeric unit protein at the other terminus, where the fused protein is able to assemble to provide a polyligand. The polyligands find use in modulating physiological processes by inhibiting ligand induced signal transduction by surface membrane protein receptors and/or in the case of µ chain use, by complement mediated killing or any other effector functions. The molecule may be composed solely, of human components to avoid an immune response by the recipient.
Patent CA-2090797-A1 (CA)
Title: Absorbent article having dual barrier means
Inventor: BRUEMMER MARY A
IPC: A61F13/56
Filed: 1993-03-02
Abstract: ABSTRACT OF THE DISCLOSURE            Disclosed is an absorbent article, including a pair of containment flaps, which containment flaps are particularly well suited for use on an absorbent article having a relatively narrow crotch. Specifically, the containment flaps include a proximal edge and a distal edge.  The proximal edge is adhered to a bodyside liner of the absorbent product with the distal edge being adhered to the bodyside liner at a point outboard of the proximal edge.  Alternatively, the proximal edge and distal edge are adhered to the bodyside liner in a manner to form a C-fold in the containment flap.  The C-fold may be inboard or outboard facing.
Patent CA-2091184-A1 (CA)
Title: Process of fabrication of aluminum sheet
Inventor: MARSH IVAN M
IPC: C22C21/06
Filed: 1991-09-05
Abstract: A process for the production of strip stock from an alloy is provided. The strip stock produced from the alloy is suitable for the fabrication of both container ends and container bodies in thinner gauges than are typically employed, has low earing characteristics and may be derived from recycled aluminum scrap. The alloy preferably has a magnesium concentration of from about 1.9 to about 2.8 weight percent and a manganese concentration of from about 0.9 to about 1.6 weight percent. The process preferably includes continuous chill block casting the alloy melt into a strip, hot rolling the strip to a first thickness, annealing the hot rolled strip and then cold rolling the annealed strip to a final thickness. Cold rolling preferably includes two stages, with an intermediate anneal step between the two stages. The process increases tensile and yield strength while decreasing earing texture, even in very thin gauges, such as 0.010 inches.
Patent CA-2091202-A1 (CA)
Title: Liquid-solid extraction apparatus and method of using same
Inventor: REDMOND MELVIN W JR
IPC: G01N33/18
Filed: 1993-03-08
Abstract: LIQUID-SOLID EXTRACTION APPARATUS                    AND METHOD OF USING SAME     ABSTRACT OF THE DISCLOSURE   System, apparatus and method for efficiently and effectively isolating analytes from a liquid sample by solid phase extraction comprises a workstation platform with a plurality of suction providing stations for receiving either or both a detachably mounted collection chamber housing a removable collection vessel and membrane holder with removable, screen supported disc membrane, the holder having an inlet opening for receiving a liquid and a passageway through the screen supported disc membrane to an exit port for flow and collection, at the appropriate time, of analytes, extraction solvent, or liquid sample.  The membrane holder is adapted to be releasably mounted into either the suction stations or the collection chamber.  The removable collection vessel in the collection chamber enables prompt, timely, safe and effective removal of solvent, analyte or liquid from the system.  The workstation platform is preferably rotatable for ease of access to the plurality of suction providing stations.
Patent CA-2091595-A1 (CA)
Title: Superconductive current lead
Inventor: SASAOKA TAKAAKI
IPC: H01R4/68
Filed: 1993-03-12
Abstract: ABSTRACT OF THE DISCLOSURE       A material   representing  a   low    thermal conductivity  at  a  temperature  lower  than  a   room temperature  is  used for a basic  member  composing  a superconductive  current lead.    The basic  member  is combined  with an oxide system superconductive  member. The  basic member decreases the heat transfer from  the superconductive   current  lead  to  an   extreme   low temperature side.
Patent CA-2094977-A1 (CA)
Title: Catalytic/thermal convertor unit
Inventor: LUCAS WALTER P
IPC: F23G7/07
Filed: 1993-04-27
Abstract: An oxidation or converter apparatus for cleansing air contaminated by volatile organic compounds (VOC) in an exothermic reaction includes a first pipe connectable to a source of the VOC contaminated air and a combustion chamber with a burner, an inlet for the VOC contaminated air and an outlet to atmosphere for exhaust, the inlet being connected to the first pipe. A catalytic oxidizer having an inlet for the VOC contaminated air and an outlet to atmosphere for exhaust is also provided along with an air-to-air heat exchanger. The outlet of the catalytic oxidizer is connected to a first inlet of the heat exchanger in order to provide heated exhaust air to one side of the exchanger. A second inlet of the heat exchanger is connected by a suitable conduit to the first pipe. The contaminated air which is preheated in the heat exchanger is carried by a further conduit to the inlet of the combustion chamber. After being further heated in the combustion chamber, it passes along an additional conduit to the inlet of the oxidizer. By the selective use of bypass valves, the unit can operate in either a thermal mode or a catalytic mode.
Patent CA-2095519-A1 (CA)
Title: Capacitative discharge ignition system for internal combustion engines
Inventor: KITSON MARK R
IPC: F02P3/08
Filed: 1991-11-15
Abstract: Capacitative discharge ignition system for internal combustion engines; comprises a charge storage means coupled to the primary coil of an ignition soil means having the secondary coil thereof coupled to a spark means, and a switching means arranged to discharge the charge storage mans to provide a primary current through the primary coil for enabling the spark means to generate a spark.      The switching mans is arranged to terminate the primary current in the primary circuit at about the time when the charge storage means is substantially fully discharged, to induce a flyback potential across the primary coil to regenerate the spark for increasing the total spark duration.      Means for modifying the rate of discharge of the charge storage paeans to initially obtain a first rate of discharge for establishing the spark and then to obtain a reduced rate of discharge for sustaining the spark is also provided to increase the total spark duration.
Patent CA-2098054-A1 (CA)
Title: Ampa-binding human glutamate receptors
Inventor: KAMBOJ RAJENDER
IPC: C07K16/00
Filed: 1993-06-09
Abstract: Abstract of the Disclosure Described herein are isolated polynucleotides which code for a family of AMPA-type human CNS receptors.  The receptors  are  characterized  structurally  and  the construction and use of cell  lines expressing these receptors are disclosed.
Patent CA-2105299-A1 (CA)
Title: Appareil de correlation de spectre a etalement asymetrique
Inventor: DIXON ROBERT C
IPC: H04B1/709
Filed: 1991-03-06
Abstract: Appareil de décodage d'un signal à spectre étalé codé avec un code de pseudo-bruit. Une commande de comptage (30) est couplée à un générateur de rythme (31) qui est connecté à un générateur de code (32) et à des registres de référence (33). Le générateur de code (32) est également relié aux registres de référence (33). La commande de comptage (30) commande la longueur du signal de pseudo-bruit choisi par le sélecteur de code (34) pour être détecté par le récepteur, et envoie les signaux au générateur de rythme de code (31) pour faire en sorte que le générateur de code (32) envoie un code de longueur L aux registres de référence (33). La commande de comptage (30) déclenche le générateur de rythme de code (31), qui déclenche à son tour le générateur de code (32) et les registres de référence (33). Le circuit de sélection de code (34) envoie des signaux au générateur de code (32). Un code unique peut être chargé dans les registres de référence (33), ou alors on peut charger différents codes dans ces registres jusqu'à ce qu'une concordance se produise.
Patent CA-2107149-A1 (CA)
Title: Method for producing a rotationally symmetrical molded part of a high-temperature superconductor
Inventor: BAUMANN THOMAS
IPC: C04B35/65
Filed: 1993-09-28
Abstract: ABSTRACT OF THE DISCLOSURE       Method for producing a rotationally symmetrical molded part of a high-temperature superconductor In order in the case of a rotationally symmetrical molded part of a high-temperature superconductor to achieve a critical current density of jc ? 800 A/cm2 at a temperature of 77 K, use is made of a powder mixture (8) having the stoichiometric composition of Bi2+xEA3Cu2Oy where, -0.15 < x < 0.4; EA = an alkaline earth metal or a mixture of alkaline earth metals, in particular a mixture of Sr and Ca in the ratio of Sr : Ca = (2 + z) : (1 - z), where 0 < x < 0.2; 8 ? y ? 8.3. With the aid of a conveying chute (9), the powder mixture (8) is brought uniformly at room temperature with a grain size of < 50 µm into a silver mold (5) which is arranged inside a rotating fusion mold (4), open at one side, in a furnace  (3).  Subsequently,  the  fusion  mold  (4)  is accelerated, heated to 500°C and held for approximately 30 min at 500°C. After subsequent partial melting at a temperature of Tm K to Tm + 6 K, where Tm = melting temperature of the pulverulent starting material, for 30 min to 2 h at an oxygen partial pressure of p(02) ? 0.8 bar, a first long-term annealing is performed at 840°C to 850°C for 20 h to 40 h. Thereafter, a second long-term annealing is performed  at  a  reduced  oxygen  partial pressure  of p(O2) and,  below  700°C,  cooling to room temperature in a nitrogen atmosphere.  There can be a subsequent third long-term annealing.        (Figure 1)
Patent CA-2108252-A1 (CA)
Inventor: FELDLE HEINZ-PETER
IPC: H03G11/02
Filed: 1992-07-08
Abstract: The invention concerns an HF-signal amplitude limiter with a wide variety of applications. HF signals with too high a gain are reflected and absorbed in the amplitude limiter.      The assembly is preferably designed as a reliable and mechanically robust unit using strip line technology. The amplitude limiter proposed is preferably for use in the input of the receiver stage of an HF receiver, in particular a radar receiver and/or the transmit/receive module of an active (radar) antenna assembly.        An amplitude limiter including an input power divider, first and second circuit branches each having an input end coupled to receive a split input signal and each being substantially identical electrically parallel-connected branches, each circuit branch being composed of a series connection of first and second conductor sections with the first and second conductor sections having respectively different lengths, and with the first and second conductor sections of each circuit branch being connected in anti-parallel, an absorber resistor connected between the two input ends of the circuit branches, and first and second rectifiers with each respective rectifier being connected between a connection point between the first and second conductor sections of each respective circuit branch and a ground conductor.