baber/WOPTO huggingface dataset:
Patent CA-2037702-A1 (CA)
Title: Simultaneous stereo fundus camera
Inventor: MCADAMS JOHN B
IPC: A61B3/14
Filed: 1991-03-07
Abstract: ABSTRACT OF THE DISCLOSURE      This invention relates to an improved simultaneous stereo fundus camera capable of generating repetitive images from different cameras and at different times for diagnostic purposes.  A Helium neon laser light source located integrally with the optics of the camera generates a fixation indicia for the left and right eye of the patient and a scaler indicia located in the field of view of the camera and printed on each stereo photograph.  The patient fixates on either the left or right indicia which places the optic nerve in the field of view of the camera.  The scaler indicia appearing on the photo provides the basis for generating a standardized 3-D photo regardless of the camera used.
Patent CA-2039824-A1 (CA)
Title: Bicone antenna with hemispherical beam for satellite system
Inventor: ROSEN HAROLD A
IPC: H01Q13/04
Filed: 1991-04-04
Abstract: A bicone microwave antenna having an or orthomode tee as an input/output termi-nal, an internal dielectric polarizer, a circular waveguide with eight longitudinal radiat-ing slots, two 30 degree conical reflectors, an external meanderline polarizer, and a partial circular waveguide short. An RF signal from the input/output terminal is con-verted into a rotating TE11 mode by the internal dielectric polarizer. The radiating slots in combination with the conical reflectors radiate the RF signal as a horizontally polar-ized field in a doughnut-shaped pattern. The meanderline polarizer converts the hori-zontally polarized field into a circularly polarized field. The partial circular waveguide short leaks a predetermined amount of radiation out the end of the waveguide to fill the center hole of the doughnut-shaped radiation pattern, thus producing a hemispherical RF beam having an elevation angle from 110 to -110 degrees. The use of impedance-matching circular rings in the waveguide further enhances the ability of the antenna to operate in three frequency bands.
Patent CA-2042156-A1 (CA)
Title: Procede et dispositif pour mesurer l'adsorption et la desorption d'un gaz adsorbe par un echantillon solide ainsi que son utilisation
Inventor: AJOT HUBERT
IPC: G01N15/08
Filed: 1991-05-09
Abstract: - L'invention concerne un procédé et un dispositif pour mesurer l'adsorption et éventuellement la désorption d'un gaz adsorbé par un échantillon solide ainsi que son utilisation. - De manière plus précise on programme une chute de pression du gaz, lors de la phase d'adsorption ou une augmentation de pression du gaz, lors de la phase de désorption, dans le circuit réservoir 1 de 0,1 à 0,7 Pa par minute grâce à au moins une vanne de régulation V p1 à ouverture proportionnelle, de façon à transférer un débit sensiblement constant de gaz vers l'échantillon et on mesure la pression du gaz dans le circuit réservoir 2 et dans le circuit de mesure 1 par des capteurs de pression C2, C1, à des intervalles de temps. On détermine enfin, par des moyens de traitement 14, l'isotherme d'adsorption et de désorption à partir du volume du circuit réservoir, de la quantité de gaz transféré, de la pression du gaz dans le circuit de mesure et du volume du circuit de mesure. - Application à la mesure notamment, de la surface spécifique d'un catalyseur.
Patent CA-2043096-A1 (CA)
Inventor: LAGACE JEAN-HUGUES
IPC: B66D5/00
Filed: 1991-05-23
Abstract: ABSTRACT OF THE DISCLOSURE The device serves to convert rotary motion to hydraulic pressure and vice versa. A piston assembly is entirely located within a cylinder, including a piston head and a piston stem fixed to the piston head. The piston assembly divides the cylinder into two distinct variable volume chambers to be filled with a fluid. The piston assembly is prevented from rotating relative to the cylinder. A rotary shaft extends through one closed end of the cylinder and has an inner portion in telescopic and threaded engagement with the piston stem. Two fluid ports communicate with the respective chambers for allowing a fluid to alternately exit from and enter into the chambers. Rotation of the shaft causes longitudinal displacement of the piston assembly relative to the cylinder or vice versa. The device can have different applications: for instance, if a throttle valve is connected across the two ports, controlled braking of the shaft rotated by an external torque, is obtained. If a hydraulic ram is connected across the two ports, rotation of the shaft by an external torque will actuate the ram. If the pitch of the complementary threads of the piston stem and shaft is high enough, pressure fluid applied to the piston will rotate the shaft.
Patent CA-2044247-A1 (CA)
Title: Process for manufacturing bisphenols
Inventor: BILLER EFIM
IPC: C07C39/16
Filed: 1990-10-15
Abstract: ABSTRACT   A method of recovering or purifying bisphenols, in particular bisphenol A, from crude product prepared in accordance with any prior art process, characterized by the fact that theses crude products, possibly after removal of low boiling compounds and excess phenol, are recovered or worked up from solvents by crystallization from high-boiling aromatic hydrocarbons (HBS) having a boiling point which is above 200°C and below the boiling point of the bisphenols.    H:34262.PAT
Patent CA-2046366-A1 (CA)
Title: Hockey stick blade holder
Inventor: HEYDUK HENRY
IPC: A63B59/70
Filed: 1991-07-05
Abstract: ABSTRACT OF THE DISCLOSURE         An ice hockey stick has a tubular handle of rectangular section overlying a rectangular end of the blade and held thereto by a securing device.  Such device has a pressure plate with a screw projecting from one side of the plate.  A cylindrical flanged member threaded onto the screw rests in a borehole in the blade end.   When the cylindrical member is turned, it forces the pressure plate against the inside of the handle and the flange against the blade end, as well as moving an end of the cylindrical member into a hole in the handle, thus locking the blade to the handle.
Patent CA-2046574-A1 (CA)
Inventor: RUBINSTEIN ADAM
IPC: H04N1/16
Filed: 1991-07-09
Abstract: ABSTRACT           Scanning   apparatus  including  a  light  source   for providing  at  least one light beam, a medium for  receiving  the light beam and two helical optical apparatus disposed between the light source and the medium for sequentially receiving the  light beam and for directing the light beam towards the medium.
Patent CA-2047469-A1 (CA)
Title: Biaxially oriented sealable polypropylene film having improved barrier properties
Inventor: SCHUHMANN DETLEF E
IPC: B32B27/32
Filed: 1991-07-19
Abstract: A sealable film is disclosed comprising (i) a base layer comprising polypropylene and a hydrocarbon resin having a softening point of at least 140°C, and (ii) at least one top layer comprising (a) an ethylene/propylene copolymer having an ethylene content of not more than about 10% by weight, (b) a propylene/1-butene copolymer, (c) a propylene/ethylene/alpha-olefin terpolymer, or (d) a blend of two or more of (a), (b) and (c), wherein at least one of said base layer and said at least one top layer contains an anti-blocking agent or lubricant. The film possesses improved barrier properties with respect to permeability to water vapor and oxygen, and which at the same time exhibits favorable slip properties and low shrink values.
Patent CA-2048537-A1 (CA)
Title: Common node reactance network for a broadband cross beam lumped-element circulator
Inventor: TALCOTT MARK A
IPC: H01P1/36
Filed: 1991-08-07
Abstract: COMMON NODE REACTANCE NETWORK FOR A BROADBAND CROSS BEAM LUMPED-ELEMENT CIRCULATOR     ABSTRACT OF THE DISCLOSURE      A microwave circulator circuit having a multiple port lumped-element circulator,  and a common node reactance network for coupling the lumped element circulator to the common ground plane of the microwave circuit with which the circulator circuit is utilized.
Patent CA-2050936-A1 (CA)
Title: Beta-hydroxamate d-aspartic acid for treatment of viral infections and tumours
Inventor: VILA JORGE
IPC: A61P31/18
Filed: 1990-04-27
Abstract: Beta-hydroxamate D-aspartic acid as a medicine, in particular for treating infections diseases caused by retroviruses, especially those that cause AIDS, as well as for treating tumours.
Patent CA-2052886-A1 (CA)
Inventor: ORD STUART C
IPC: B05B5/025
Filed: 1991-10-07
Abstract: Apparatus and method for projecting liquid in the form of a sheet for deposition on a target comprises a nozzle having a slot 10 of width not less than 250 microns to which the liquid is supplied. High voltage is applied to the liquid and the liquid is supplied to the slot at a flow rate such that the liquid is formed as, and is maintained in the form of, a sheet by preponderantly electrostatic forces thereby effecting deposition of the sheet on to the target.
Patent CA-2055209-A1 (CA)
Title: Electronic typewriter
Inventor: PETRACCA ANTONIO
IPC: B41J29/13
Filed: 1991-11-08
Abstract: ABSTRACT OF THE DISCLOSURE         An electronic typewriter has an electronic control circuit housed with the usual typing mechanism in a casing, and can be provided with a display module for displaying text and/or machine functions.  The display module is removably fixed to the casing.  An electronic unit for controlling the display module is removably fitted in the casing and is connected to the control circuit and the display module by connectors.  A basic typewriter without a display module can be constructed with a cover instead of the display module.  The two types of typewriter can be produced on largely the same production line, and the basic typewriter can be simply upgraded with a display module in the field.
Patent CA-2055517-A1 (CA)
Inventor: BENNETT REGINALD S
IPC: G02B5/124
Filed: 1991-11-14
Abstract: A reflectant surface of retro reflective material comprises a plurality of parallel convex outward ribs having a center-to-center spacing of between 3/8" and 1/16".  The retro reflective surface preferably employs an arrangement of triads mutually perpendicular surfaces, which triads and surfaces are indistinguishable at normal minimum viewing distances.
Patent CA-2056688-A1 (CA)
Inventor: KONII KATSUJI
IPC: E05B17/04
Filed: 1991-11-29
Abstract: A cylinder lock is disclosed having significant resistance to damage or tampering.    The cylinder lock comprises an axial cam provided on the key cylinder; a rotator which may be engaged with the sleeve and be in contact with the axial cam of the key cylinder; a stopper positioned adjacent to the rotator and having a pair of lugs engageable with a recess of the casing; and an axial spring positioned between the stopper and a connector for resiliently urging the stopper toward the rotator.     The rotator and stopper are axially moved by the axial cam of the key cylinder to release engagement of the rotator with the sleeve and also to release engagement of the stopper with the casing when the key cylinder is rotated independently of the sleeve by a correct key,  thereby the rotator comes into engagement with the connector. By further rotating the key cylinder, the rotator, stopper and connector are rotated as a unit to a locked or unlocked position.
Patent CA-2057617-A1 (CA)
Title: Communications signal
Inventor: WEDDING BERTHOLD
IPC: H04B10/50
Filed: 1991-12-13
Abstract: In a transmitter including a carrier source (TQ) an input signal (a) is present which contains the information to be transmitted and is composed of signal components (a1) having amplitudes less than a predetermined threshold value (U0) or equal to the threshold value (U0) and signal com-ponents (a2) whose amplitudes are less than the threshold value (U0) or equal to the threshold value (U0).  For the purpose of identification, the two signal components (a1, a2) are sampled in different ways, for example at different frequencies (f1, f2), and are combined into a modulation signal (f) in such a manner that the two signal components have the same sign.  In a receiver (E), a circuit arrangement is provided which identifies the sign of the partial signals on the basis of their different sampling frequencies (BP1, BP2), demodulates envelope curves and combines them into an output signal (m) which corresponds to the signal (a).    The transmitter and receiver (L, E) are advantageously components of an analog optical transmission system. They prevent the clipping effect while simultaneously increasing the degree of modulation.
Patent CA-2061581-A1 (CA)
Title: Manufacturing device for composite wire made of reinforcement fibres and thermoplastic organic matter
Inventor: RONCATO GIORDANO
IPC: D01D5/08
Filed: 1992-02-20
Abstract: Device for manufacturing a yarn composed of organic filaments and of glass filaments and which is used for the production of composite products. 
<??>This device comprises at least one spinneret fed with molten glass, and at least one spinning head fed under pressure with thermoplastic organic material, from which continuous filaments are simultaneously drawn forming a composite yarn when combined. 
<??>The spinning head, which comprises a central passage through which the glass filaments are drawn, is protected by a hood whose upper part comprises an opening situated in the axis of the said passage, and whose lower part is formed by a wall which surrounds the spinning head and extends below the level of the lower face of the said head. The spinning head is used in combination with a device for cooling the organic filaments. 
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Patent CA-2061914-A1 (CA)
Title: Process for treating tertiary amines
Inventor: SMITH KIM R
IPC: C07C211/08
Filed: 1992-02-26
Abstract: Case AM-6285+                                       ABSTRACT   A tert-amine which contains an acid-activated color body precursor is treated to prevent it or a derivative thereof, e.g., an amine oxide, betaine, or quaternary ammonium compound, from turning pink when exposed to acidic conditions by contacting it at an effective temperature with a discoloration inhibitor which is (1) an inorganic sulfite selected from alkali metal sulfites and bisulfites, (2) an alkanal containing at least two carbons, (3) an acetylalkylcarbinol, (4) an amido compound which contains a -CO.NH- group, (5) ammonium carbonate, (6) a dialkylacetal, or (7) ascorbic acid. Ambient temperatures are satisfactory for the treatments with the other discoloration inhibitors, but temperatures above 100°C are required when the discoloration inhibitor is an inorganic sulfite.
Patent CA-2062305-A1 (CA)
Title: Neck seal
Inventor: FARNWORTH BRIAN
IPC: B63C11/04
Filed: 1992-03-04
Abstract: An immersion suit having a neck band to fit around a neck and a seal at the neck. There is a thick band of closed cell foam on the interior of the neck band. The neck band and the closed cell foam can be compressed rapidly by a strap to ensure a seal when required. When a seal is not required, the foam is a relatively loose, comfortable fit around the neck of the wearer. In the preferred embodiment, the suit has an opening in the front extending to the top of the neck band to allow ingress and egress from the suit.
Patent CA-2063816-A1 (CA)
Title: Multi-channel pipetter
Inventor: TORTI VICTOR A
IPC: B01L3/02
Filed: 1990-07-05
Abstract: A pipetting system having a plurality of fittings (7) whose spac-ing can be simultaneously expanded from one dimension to another. Increasing the spacing is accomplished by pulling a rod (11), attached to one fitting (76), which elongates the series of fittings to a second po-sition. In addition, there is a release mechanism (68) for removing dis-posable tips (6) attached to the fittings (7). The release mechanism (68) can be operated in either position of the fittings. The mechanism is trig-ger (5) actuated.
Patent CA-2066023-A1 (CA)
Title: Power transmission
Inventor: NIEMIEC ALBIN J
IPC: H02K7/14
Filed: 1992-04-15
Abstract: Abstract of the Disclosure An electric motor driven inline hydraulic apparatus comprising a housing having end plates closing said housing, an electric motor stator mounted in said housing, an electric motor rotor, a shaft on which the rotor is mounted is journalled in the housing and a vane type pump mounted on one of the end plates.  The shaft extends through an opening in the end plate and is connected to the vane rotor of the pump. Hydraulic fluid is supplied to the interior of the electric motor housing and flows through passages in the housing to the intake of the vane pump on the end plate.  In one form, the vane pump delivers fluid through an outlet in the end plate on which it is mounted.          In another form, the vane pump delivers fluid through an outlet in the pump housing.
Patent CA-2067775-A1 (CA)
Title: Automatic sewing machine system
Inventor: REEDMAN DAVID C
IPC: D05C5/06
Filed: 1991-08-28
Abstract: A workpiece is supported by work support means (40; 40'; 40'';  44'; 142, 144) for movement in a first direction by co-operating workpiece clamping and feeding means (46; 142, 144), both said means being supported on a carriage (16) for movement in a second direction normal to the first to move a workpiece relative to a sewing machine head. Both of said means are arranged on both sides of an elongated aperture (42) extending in the second direction in alignment with a needle penetration point (N). Stepping motors (24; 60) are provided for moving the carriage (16) and operating the workpiece clamping and feeding means (46; 142, 144) under programmed control. A camera (70) is also provided aligned with the aperture (42), for detecting the peripheral outline of a workpiece fed therebeneath. Computer means is effective, in response to the detected outline, to identify the workpiece type and its orientation and location on the workpiece support means and accesses an appropriate stitch pattern data file and modifies the data to take account of the workpiece orientation and location. The workpiece is then sewn according to the thus modified data.
Patent CA-2069925-A1 (CA)
Title: Engine ignition system including a transformer assembly and positioning means therefor
Inventor: BRUNING E EUGENE
IPC: H01F38/12
Filed: 1991-02-25
Abstract: Abstract of the Disclosure Engine Ignition System Including a Transformer Assembly and Positioning Means Therefor Prior engine ignition systems for a multicylinder spark ignited engine have been too complex and have incorporated external wiring cables and a plurality of transformer assemblies that placed the individual primary and secondary coils thereof in an external location for better heat dissipation. Thus the cable and transformer assemblies were subject to damage by personnel working on the engine.  These problems have been overcome by the engine ignition system (8) including a transformer assembly (10) having an elongate body (68) including a cup portion (70) containing the coils (82,84), a base portion (72), and a stem portion (74).  A conducting core (96) extends through the stem and base portions and a suitable clip (116) connects the core electrically to a spark plug (30) installed in a profiled bore (28) of the cylinder head (24).  A position device (130) is provided to positively align and contain the transformer assembly (10) within a valve mechanism compartment (149) defined between the cover (148) and the cylinder head (24), and including a spring member (132) connected to the cup portion (70) and depending guide members (150) formed within the cover (148) that cooperate with each other.
Patent CA-2070677-A1 (CA)
Inventor: NIGHTINGALE CHARLES
IPC: G06F15/18
Filed: 1990-12-21
Abstract: Réseau neuronal dans lequel de nouveaux noeuds et connexions sont créés dans les couches d'entrée et intermédiaires lors de la formation, laquelle est basée sur le conditionnement par punition-récompense et l'enseignement. Cela permet d'utiliser un faible accroissement de mémoire pour épargner de longues heures de formation consacrées aux problèmes de traitement de la parole et du langage naturel, de reconnaissance vidéo et de simples fonctions logiques.
Patent CA-2073240-A1 (CA)
Title: Thioformamide derivatives
Inventor: PALFREYMAN MALCOLM N
IPC: A61P15/00
Filed: 1991-01-08
Abstract: Thioformamide derivatives of formula (I), in which R represents alkyl, Y represents methylene, ethylene or a direct bond, A  represents optionally substituted phenyl or heterocyclyl and: R1 represents hydrogen, and R2 represents an N-alkylsulphonyl- or N-phenylsulphonyl-N'-alkylamidino or an aryl- or alkylsulphonyl group; R1 and R2 both independently represents alkyl- or aryl-sulphonyl groups; or R1 and R2 form together with the nitrogen atom a 3,5-dioxomorpholino group or analogue thereof; and salts thereof possess pharmacological activity and are also useful in inhibiting head hair loss.
Patent CA-2073496-A1 (CA)
Inventor: VEITH JEROME S
IPC: A61F13/15
Filed: 1992-07-08
Abstract: Abstract of the Disclosure Embossing a web between unmatched male and female embossing elements, wherein the sidewall slope of the female element is different than the sidewall slope of the male element, provides an embossed web having markedly improved embossing pattern definition and, in the case of roll products, greater roll bulk at equivalent roll firmness.  The unmatched male and female embossing elements are preferably made by laser engraving rubber embossing rolls.
Patent CA-2076677-A1 (CA)
Title: Blood container having lay-flat sample reservoir
Inventor: LYNN DANIEL R
IPC: A61M39/22
Filed: 1992-01-10
Abstract: The method is provided of collecting blood with a donor needle (14) inserted into the vein, which comprises an improvement of:  after drawing a desired amount of blood into the blood storage container (12) connected to one end of flexible tubing (28), occluding flow through said flexible tubing at a point (42) adjacent a flexible, transversely enlarged tubing portion (34) positioned at a location on the tubing spaced from the ends. The flow occluding point (42) is located between the enlarged tubing portion (34) and the container (12), and the tubing portion (34) is initially of lay-flat type, prior to passing blood through it. One then draws more blood through the needle (14) to enter and fill the enlarged tubing portion (34). One then occludes flexible tubing (26) between the enlarged tubing portion (34) and the needle (14) prior to withdrawing the needle (14) from the vein of the blood donor.
Patent CA-2076791-A1 (CA)
Inventor: SCHEUER MARK A
IPC: G03G15/00
Filed: 1992-08-25
Abstract: A pair of Electronic Voltmeters (ESV) are utilized to control the P/R charging voltage in a Tri-Level imaging apparatus. One of the ESVs is used to control the voltage increases of a charging device. The other ESV is used to monitor the charge level of the charged area image of a Tri-Level image. When a critical value is sensed the control of the charging device is shifted to the ESV that monitors the charged area image level and limits the output from the charging device to a predetermined target value..