baber/WOPTO huggingface dataset:
Patent CA-2006117-A1 (CA)
Title: Apparatus and equipment for use in lining pipeline having branched portions
Inventor: SHIMOKAWA SHINJI
IPC: B29C63/36
Filed: 1989-12-20
Abstract: An apparatus and an equipment for blocking the opening of a branched pipe (2) in a branched portion of a pipeline (1) such as a gas conduit, a city water pipeline, a sewer conduit, and mainly an underground pipeliner adapted for use prior to operation of lining the inner surface of the pipeline (1) with a tubular lining material (100) for maintenance/repair or reinforcement purposes.  The apparatus and equipment have a particular construction (11-22, 32-37) which enables blocking operation to be conducted extremely efficiently and in a simple and easy manner.
Patent CA-2006200-A1 (CA)
Title: Wireline releasing device and method of releasing wireline
Inventor: PETREE ALLEN R
IPC: E21B23/14
Filed: 1989-12-20
Abstract: WIRELINE RELEASING DEVICE AND METHOD        OF RELEASING WIRELINE                 ABSTRACT OF THE DISCLOSURE           An  apparatus  and method for selectively discon-necting  a  wireline from a downhole tool when the tool be-comes lodged in an oil or gas  well.  The apparatus is direct-ed to a wireline releasing device which includes a precharge chamber which can be pressurized to a predetermined amount for applying  a force against a piston assembly located within the  releasing device to hold together telescopically connect-ed upper and lower  tubular portions  which  are  locked in place by  retractable dogs  which  extend  through   aligned openings  in  the  upper  and  lower  tubular   portions.    The device  is  intended to be connected at one end to a length of  wireline and,  to another end, to the top of the downhole tool.   During  wireline operations,  upon the downhole tool becoming  lodged  within  the  well,   the  wireline   operator applies  hydraulic or  pneumatic  pressure  from  the surface which exceeds the precharged pressure, which acts to  discon-nect the  upper portion of the device from the lower portion and the  downhole tool.
Patent CA-2009688-A1 (CA)
Title: Monocarboxylic acid methylesters in invert drilling muds
Inventor: MUELLER HEINZ
IPC: C09K8/34
Filed: 1990-02-09
Abstract: The invention relates to the use of methylesters of C6-24 monocarboxylic acids as the oil phase or as part of the oil phase of invert drilling muds which are suitable for the environment-friendly development of oil and gas sources and which, in a continuous oil phase, contain a disperse aqueous phase together. with emulsifiers, weighting agents, fluid loss additives and, if desired, other standard additives. In another embodiment, the invention relates to invert drilling muds which are particularly suitable for the environment-friendly development of oil and gas sources and which are characterized in that the oil phase contains methylesters of C6-24 monocarboxylic acids, if desired in admixture with other oil components from the class of non-polluting oils.
Patent CA-2010027-A1 (CA)
IPC: B09B3/00
Filed: 1990-02-14
Abstract: A method for disposing by incineration of waste material containing sludge and garbage of various kinds which when combined results in a composite waste material prepared by performing multiple steps in its handling wherein the composite material is first sub-jected to a grinding step for thorough intermixing of the sludge that may contain a high percentage of mois-ture with garbage that can contain very little moisture. After grinding, the composite waste material is pro-cessed in a cyclone where the gases that are used to transport the ground matter can be separated while the solids are subjected to classification by the use of a vibratory screen where the paper, fluffy waste, and similar materials can be separated from the smaller and harder particulate components.  The separated components are subjected to individual impact grinding steps prior to being recombined in the combustor where incineration takes place.  The gases separated in the cyclone separator are reapplied to the grinding steps for moving such material into the incinerating combus-tor, and any excess gases are delivered to the incin-erator, along with ambient air for establishing suf-ficient oxygen to support combustion in the furnace at a temperature that will sanitize and destroy odors during the incineration of the waste material and after the sanitizing step in the incinerator, the gases are exhausted through suitable heat exchanges and filtering medium.
Patent CA-2010413-A1 (CA)
IPC: H02J3/24
Filed: 1990-02-20
Abstract: When there are variations in the short-circuit power of a system, the operating conditions can change, particularly in a controller of a compensating device.  To automatically adapt the controller and to avoid or suppress oscillations or voltage variations in the system, a method is provided according to a first solution, where the circuit state of a compensating element is modified for testing purposes.  The reaction of the system is detected in a device and, then a parameter which determines the damping of the controller is modified by means of a computing device.  According to a second solution, an oscillation of the controller is established by detecting a signal which is dependent on the system voltage and by comparing specific variations.  To suppress the oscillations, the hysteresis of the controller is damped by means of the computing device.
Patent CA-2011317-A1 (CA)
Inventor: BRYAN EDWARD
IPC: A01N57/02
Filed: 1990-03-02
Abstract: Phosphonium salts such as THP and aldehydes such as formaldehyde exhibit synergistic biocidal activity.
Patent CA-2012199-A1 (CA)
Title: Communications handset with menu selection
IPC: G06F3/0362
Filed: 1990-03-14
Abstract: COMMUNICATIONS HANDSET WITH MENU SELECTION            Abstract of the Disclosure A communications handset comprises a rotary switch on a side of the handset and a display panel.  The position, and direction of movement, of the switch is determined and translated so as to cause highlighting of soft keys, or items, within a menu of soft keys displayed on the display panel. Selection of a particular soft key is made by depressing the switch when the desired soft key is highlighted.  The display can be supplemented with or replaced by an audible voice signal representing the menu selections.  The handset provides convenient and one-handed access to menu selections.     - i -
Patent CA-2013219-A1 (CA)
Inventor: EIVOLA ILKKA
IPC: D21F5/04
Filed: 1990-03-28
Abstract: ABSTRACT OF THE DISCLOSURE    Method and apparatus for ventilating pockets in a twin-wire multi-cylinder dryer of a paper machine which comprises upper and lower lines of drying cylinders, an upper wire guided by surfaces of the upper cylinders and upper guide rolls and a lower wire guided by surfaces of the lower cylinders and lower guide rolls, and wherein the web runs between the upper and lower cylinders over an open draw, includes providing the guide rolls with perforated mantles for directing air flows from their interiors into the pockets, and providing blow boxes with nozzles for directing air flows into the pockets.
Patent CA-2014572-A1 (CA)
Title: Pneumatic radial tire with improved inflected sidewall profile
Inventor: NAKAJIMA YUKIO
IPC: B60C3/04
Filed: 1990-04-12
Abstract: In a pneumatic radial tire comprising a radial carcass and a belt, when the tire is mounted onto a normal rim and inflated under an internal pressure corresponding to 5% of a normal internal pressure, a carcass line of the carcass in radial section of the tire at a self-posture under no load has at least two inflection points between positions A and C and/or between positions C and B in which A is a position corresponding to each end of the belt at its maximum width, B is a position corresponding to a width of the normal rim and C is a position corresponding to a maximum width of the carcass.
Patent CA-2015072-A1 (CA)
Title: Process for the preparation of glucosaminyl-epi-podophyllotoxin derivatives
Inventor: KOLAR CENEK
IPC: C07H17/04
Filed: 1990-04-20
Abstract: Abstract of the disclosure:     HOE 89/B 015 A process for the preparation of glucosaminyl-epi-podo-phyllotoxin derivatives The invention relates to a novel process for the prepara-tion of glucosaminyl-epi-podophyllotoxin derivatives of the formula I                                I   in which R1  is hydrogen or the acetyl or a mono-, di- or trihalo-genoacetyl protective group with halogen being fluor-ine, chlorine or bromine, R2  is hydrogen or (C1-C4)-alkyl, R3  hydrogen,  (C1-C4)-alkyl  or  a benzyloxycarbonyl protective group, R4  is hydrogen, a mono-, di  or trihalogenoacetyl pro-tective group, a benzyloxycarbonyl protective group or a methyl group, and A  is C1-C4-alkyl, which  comprises  reacting  a  3-0-acyl-2-N-benzyloxy-carbonyl-4,6-0-alkylidene-alpha-D-glucosamine derivative of the formula II, which is in the alpha-hydroxy form,      II     in which R1  and R3 are acyl protective groups as defined above, and R2  is hydrogen, with a podophyllotoxin derivative of the formula III                               III   in which R4  is a methyl group or a mono-, di- or trihalogenoacetyl or benzyloxycarbonyl protective group, in the presence of a promoter and of an anhydrous organic solvent at -50°C to 20°C to give a 4-O-(beta-glucosamin-yl)-epi-podophyllotoxin derivative of the formula I in which the radicals R1, R2, R3, and R4 retain their meaning as defined above, and subsequently converting the glyco-side products of the formula I, after elimination of the protective groups, into an amino or dialkylamino compound of the formula I.
Patent CA-2016702-A1 (CA)
Title: Procedure to recover plastic materials and the like and equipment to achieve such a result
Inventor: CERRONI MANLIO
IPC: C09J/
Filed: 1990-05-14
Abstract: ABSTRACT OF THE DISCLOSURE     Procedure to recover plastic materials and the like characterized by the fact that it consists of the input, near the bottom of a basin filled with a conveying liquid, generally water, up to the level determined by a weir, of the material to be separated, as plastics, reduced to small size and as homogeneous as possible pieces, with such an input on the bottom of the basin occurring without creating any turbulence in the same liquid, with the input material separating, due to the said absence of turbulence, according to the specific weights of the various component substances, thus allowing the recovery of the lighter material through the same weir and driving the heavier material away from the bottom.
Patent CA-2016846-A1 (CA)
Title: Dispositif d'introduction et de mise en place d'un outillage a l'interieur d'un tube d'un echangeur de chaleur et utilisation de ce dispositif
Inventor: FEUILLET PATRICE
IPC: F28D1/047
Filed: 1990-05-15
Abstract: Dispositif d'introduction et de mise en place d'un outillage à l'intérieur d'un tube d'un échangeur de chaleur et utilisation de ce dispositif DU CONTENU TECHNIQUE DE L'INVENTION Le dispositif comporte un élément de transmission allongé (30) qui peut être déplacé à l'intérieur du tube du générateur de vapeur par un moyen de traction et de poussée. L'élément allongé (30) comporte un câble métallique central (31), une gaine périphérique souple (32) et une pluralité d éléments annulaires (33) non reliés entre eux et enfilés l'un à la suite de l'autre sur la gaine souple (32). Un jeu (34) correspondant à la différence de longueur entre la gaine (32) et la longueur totale des éléments (33) placés bout à bout permet de déplacer l élément (30) à l intérieur du tube par poussée sans exercer d effort important. Le dispositif permet en particulier d'introduire et de mettre en place des éléments chauffants dans les parties cintrées des tubes du faisceau d'un générateur de vapeur d un réacteur nucléaire à eau sous pression. Figure 3.
Patent CA-2022211-A1 (CA)
IPC: F16K3/02
Filed: 1990-07-30
Abstract: Docket Number:  023114-CA          Abstract of the Disclosure A valve assembly has a body portion (11) which can be removably receivable in a receptacle (10).  The body carries the valve element such as a gate which controls fluid through a flowpath in the body.  The openings of a flowpath in the receptacle accommodate annular sealing members (23, 24) which are movable axially in the openings.  Means such as a lever arrangement (32, 33) are coupled to each sealing members and are contactable by the body (11) on its insertion in the receptacle such that the sealing members are moved axially toward the body to seal around the flowpath openings of the body.
Patent CA-2023025-A1 (CA)
Title: Process of extracting anions with quaternary amines
Inventor: STIERMAN THOMAS J
IPC: B01J41/04
Filed: 1990-08-09
Abstract: An improved extraction system employing a quaternary amine to extract anions from an aqueous solution, particularly precious metals such as gold or silver from an aqueous alkaline solution. The improvement comprises the use of a weak organic acid (a compound providing an acidic proton) along with the quaternary amine. The improvement is useful in both liquid-liquid and liquid-solid extraction systems.
Patent CA-2027634-A1 (CA)
Title: Seedling extraction method and apparatus
Inventor: SJOBERG NILS E
IPC: A01C11/02
Filed: 1990-10-15
Abstract: SEEDLING EXTRACTION METHOD AND APPARATUS                ABSTRACT OF THE DISCLOSURE        An apparatus and method for loosening a seedling or plantlet within the growing cavity of a container.  The container is held stationary while a plurality of pins enter the growing cavities from the bottom of the container.  The pins move within the cavity a distance sufficient to loosen the plantlet within the cavity but not sufficient to eject the plantlet from the cavity.  An ejector is used to eject the loosened plantlet from the cavity.
Patent CA-2027896-A1 (CA)
Title: Antimuscarinic bronchodilators
Inventor: CROSS PETER E
IPC: C07D453/02
Filed: 1990-10-17
Abstract: ABSTRACT                 Antimuscarinic Bronchodilators Compounds having the formula:                --- (I) wherein X is either (a) a phenyl group optionally substituted by 1 or 2 substituents each independently selected from halo, CF3, C1-C4 alkyl, C1-C4 alkoxy and hydroxy, or (b) a thienyl group; and Y is an imidazolyl, pyrazolyl, triazolyl or tetrazolyl group optionally substituted by 1 or 2 substituents each independently selected from halo, CF3, C1-C4 alkoxy, hydroxy and amino; and pharmaceutically acceptable salts thereof, are antimuscarinic bronchodilators useful in the treatment of chronic obstructive airways disease and asthma.
Patent CA-2031843-A1 (CA)
Title: Roof construction method
Inventor: WATSON ALLAN
IPC: E04C3/02
Filed: 1990-12-10
Abstract: "ROOF CONSTRUCTION METHOD"     ABSTRACT OF THE DISCLOSURE         A v-shaped metal extrusion is used to space apart roof trusses, hold them in place, and stably support roof sheeting over the extrusion and trusses.   The extrusion is angled to conform to the angle of the apex of the trusses.  Markings at defined intervals on the extrusion indicate how far apart the trusses are to be spaced.   The extrusion is placed over the apices of the roof trusses.   The trusses are aligned with and affixed to the extrusion at its markings.  Roof sheeting may then he affixed on each side of the trusses to the extrusion and trusses, to form a stable roof structure.
Patent CA-2035700-A1 (CA)
Inventor: WOO KENNETH J
IPC: H01R4/08
Filed: 1991-02-05
Abstract: A power booster bushing for obturating powder gases in a cartridge case employed by power actuated tools used for connecting power cables. The power booster bushing supports an explosive power cell and is slidably positioned in the cartridge case bore and has a series of ribs defined by grooves engaging the cartridge case bore. The interface between the cartridge case bore and the bushing is sealed during detonation of the power cell by means of the circumferential ribs. The bushing undergoes an "accordion effect" during detonation characterized by axial compression of the bushing and resulting in the prevention of powder gas escape through the open breech end of the cartridge case.
Patent CA-2037942-A1 (CA)
Title: Process for producing an electret, a film electret, and an electret filter
Inventor: MATSUURA SATOSHI
IPC: B01D39/08
Filed: 1991-03-11
Abstract: ABSTRACT OF THE DISCLOSURE      The improved process fro producing an electret includes the step of alternating continuously at least two cycles of applying electric charges to an article of interest and subsequently heating said article.  This process may be applied to a drawn or undrawn film to produce a film electret, or it may be applied to a woven or nonwoven fabric to produce a sheet of fiber electret.     Also disclosed are a film electret that contains a polar high-molecular weight compound and that provides a TSDC curve having a homocharge peak temperature of at least 95°C and a heterocharge peak temperature of at least 80°C, as well as an electret filter composed of fibers that are obtained by fibrillating said film of resin electret.
Patent CA-2040625-A1 (CA)
Title: Optical recording/reproducing apparatus
Inventor: IMAI HITOSHI
IPC: G11B7/126
Filed: 1991-04-17
Abstract: ABSTRACT OF THE DISCLOSURE    The optical recording/reproducing apparatus provided with a dividing optical element which divides a part of the light from a light source and projects the divided light to a moving stage on which an objective lens is mounted, a reflecting optical element which is mounted on the moving stage and reflects the projected light from the dividing optical element, and a photodetector which detects the reflected light from the reflecting optical element, wherein the deviation amount of the moving stage from a reference position is detected on the basis of output of the photo-detector.  Since the condition when the reflected light is incident upon the photodetector is changed in consequence to the positional deviation of the reflecting optical element as the moving stage is moved, the deviation amount of the moving stage is detected on the basis of the output of the photodetector.  The deviation amount of the moving stage can be detected at all times, thereby achieving good tracking control.
Patent CA-2042510-A1 (CA)
Inventor: MULLET WILLIS J
IPC: E05F15/16
Filed: 1991-05-14
Abstract: ABSTRACT            An  opening-closing mechanism  for  a  hinged  panel  or sectional overhead garage door which is located laterally along the top door panel and has an integrally associated electric motor and speed reduction drive component located mediate of and for a direct reaction with opposed vertical and horizontal gear and roller guide tracks having a specific curvature in the area of transition movement of door panels from vertical to horizontal.
Patent CA-2042674-A1 (CA)
Title: Adaptive equalizer with midburst correction capability
Inventor: NAKAI TOSHIHISA
IPC: H04B3/06
Filed: 1991-05-15
Abstract: An adaptive equalizer in a digital receiver filters differentially encoded data bursts containing known data preceded and followed by user data.  A storage means saves and restores filter coefficients and other values so that the known data can be filtered repeatedly.  As the known data are repeatedly filtered, a known-data generating means generates different differential encodings of the known data as desired data which are compared with the filtered values to obtain error values for use in updating the filter coefficients.  A comparator means selects the encoding that produces the smallest cumulative error.  The known data are then filtered once more, using the selected encoding as desired data, after which adaptive filtering of user data continues.
Patent CA-2042677-A1 (CA)
Title: Lockset having electric means for disabling and enabling the outer handle
Inventor: TULLY CLAY E
IPC: E05B47/06
Filed: 1991-05-15
Abstract: ABSTRACT OF THE DISCLOSURE            LOCKSET HAVING ELECTRIC MEANS FOR DISABLING AND ENABLING                    THE OUTER HANDLE      Lockset has within its outer tubular spindle a radial dog which, depending on its position, couples or decouples the spindle and the outer handle.  Dog is moved from one position to the other by pin on rotary motor shaft screwing in or out a spring encircling the shaft and attached to dog.  Motor is in inner tubular spindle.
Patent CA-2043013-A1 (CA)
Title: Method and apparatus for preparing sheet stacks
Inventor: HOMMES WILLIAM J
IPC: B26F1/12
Filed: 1991-05-22
Abstract: TITLE OF THE INVENTION                   METHOD AND APPARATUS               FOR PREPARING SHEET STACKS     ABSTRACT OF THE DISCLOSURE         The present invention relates to a method and apparatus for automatically preparing one or more stacks of sheets, each stack having at least two substantially straight edges that meet to define a corner and, specifically, where preparing constitutes corner rounding, notching, hole punching or edge marking the stack.
Patent CA-2043848-A1 (CA)
Title: Medicaments
Inventor: RILEY ALAN J
IPC: C07D491/052
Filed: 1991-06-04
Abstract: ABSTRACT     The use of a compound of formula I           (I) wherein R is a hydrogen atom or a group selected from Cl 6alkyl (optionally substituted by C3-7cycloalkyl), C3-6 alkenyl, C3-6alkynyl, C3-7 cycloalkyl, aralkyl (in which the alkyl moiety contains 1-5 carbon atoms) and -CHO; R1 and R2, which may be the same or different, represent a hydrogen atom, a halogen atom or a group selected from C1-4alkyl, C1-4alkoxy, hydroxyl, cyano, nitro and -NR3R4 where R3 and R4 is each a hydrogen atom or a C1-4alkyl group and X is an oxygen atom or a group -CH2; or a physiologically acceptable salt or hydrate thereof for treating, relieving or preventing the effects of sexual dysfunction.   Preferred compounds include trans-5-fluoro-2,3,3a,9a-tetrahydro-lH-[1,4] benzodioxino [2,3-clpyrrole and trans-5-fluoro-1,2,3,3a,9,9a-hexahydro[1] benzopyrano [2,3-c]pyrrole.   Conditions that may be treated in this manner include, in the case of the male, erectile inadequacy and, in the case of the female, sexual arousal disorder.     AD120/Abstract
Patent CA-2047855-A1 (CA)
Title: Method and apparatus for performing noise cancelling and headphoning
Inventor: MOSELEY WILLIAM T
IPC: A61F11/14
Filed: 1991-07-25
Abstract: METHOD AND APPARATUS FOR PERFORMING  NOISE CANCELLING AND HEADPHONING             ABSTRACT           A device for performing electroacoustic functions including noise cancellation, communication interface, and headphone functions. The device includes a composite transducer which is connected to a control unit.  The composite transducer, which is adapted for use with the human ear, includes at least three transducers, oriented to be substantially coplanar to each other: two oppositely oriented input transducers for converting acoustic waves into electrical signals, and at least one output transducer oriented facing the ear for converting electrical signals into acoustic waves. The control unit includes circuitry for driving the output transducer based on electrical signals from the input transducers with an amplitude and phase to perform the noise cancellation, sound filtering, communication interface, and headphone functions. The input transducer which is oriented facing the ear picks up residual noise present in the ear canal which was not cancelled by the first input transducer to output transducer signal path due to non-ideal frequency and amplitude characteristics. The second input transducer supplies an electrical signal corresponding to the residual noise to the control circuitry to cancel the residual noise. Additionally, the path of acoustic energy from a noise source, through the composite transducer, and to the ear canal can be lengthened by the addition of a baffle around which the acoustic energy must travel.