baber/WOPTO huggingface dataset:
Patent CA-2014818-A1 (CA)
IPC: C07C41/16
Filed: 1990-04-18
Abstract: A process for producing m-phenoxybenzyl alcohol by reacting chlorobenzene with m-hydroxybenzyl alcohol in the presence of a copper catalyst and a base, the process being characterized by using an alkylene glycol as a reaction solvent.
Patent CA-2016395-A1 (CA)
Inventor: ALLEN ADRIAN S
IPC: A61L15/60
Filed: 1990-05-09
Abstract: A water soluble, substantially linear, polymer is made by copolymerisation of a water soluble blend of monoethylenically unsaturated monomers comprising carboxylic acid monomers such as acrylic acid and a hydroxylic monomer of the formula CHR1=CR2-Y-M a-OH where R1 is hydrogen or carboxy, R2 is hydrogen, carboxy or methyl, Y is O, CH2O or COO, M is alkyleneoxy and a is at least 5. This polymer can be cross linked, generally after being shaped by extrusion or other shaping of an aqueous solution of the polymer, to form cross linkages between the carboxyl and hydroxyl groups. The shaped elements can have high eater absorbency and can be in the form of, for instance, fibres or films.
Patent CA-2016619-A1 (CA)
Title: Process for the preparation of hydrocarbons
Inventor: POST MARTIN F M
IPC: B01J35/10
Filed: 1990-05-11
Abstract: \     A B S T R A C T               PROCESS FOR THE PREPARATION OF HYDROCARBONS      The invention relates to a process for the preparation of hydrocarbons by catalytic reaction of carbon monoxide with hydrogen, comprising the steps of: a)   selecting a catalyst comprising:      i)   3-80 parts by weight cobalt per 100 parts by weight of porous carrier; ii)  0.1-100 parts by weight of at least one metal selected from zirconium, titanium and chromium, per 100 parts by weight of porous carrier; and iii) an external surface area (Se) Se < 70 cm2 /ml; b)   activating the catalyst; and c)   contacting the activated catalyst in a fixed bed form with a mixture of carbon monoxide and hydrogen having a hydrogen/-carbon monoxide feed ratio (F) F < 1.9 under such conditions that Se/F > 12 5, and to hydrocarbons obtained therewith.
Patent CA-2018402-A1 (CA)
Title: Sheet deliverer
Inventor: WEISGERBER WILLI
IPC: B65H29/04
Filed: 1990-06-06
Abstract: ABSTRACT OF THE DISCLOSURE     A sheet deliverer apparatus for a sheet processing machine, particularly a sheet printing machine with a high stapling or stacking sheet delivery capability, wherein sheet deliverer upper and lower chain guide ways extend in the same direction of curvature, and a clamping device is provided to clamp the sheet deliverer chains in tension to provide very oven and silent running of the sheet deliverer chains and the gripping pads, extended service life and uniform sheet travel free of flutter over the complete conveying way to the delivery staple or table to permit increased conveying output.
Patent CA-2019469-A1 (CA)
Inventor: LEBRUN REMI
IPC: C10G31/11
Filed: 1990-06-21
Abstract: Formule 24 (art. 21, 31, 34 et 142) Précis Pour le traitement des huiles usées, de nombreux procédés ont été inventés, certains utilisant des produits chimiques et créant de ce fait même des quantités de déchets dangereux à disposer. D'autres plus récents et n'ayant pas cet inconvénient ont été déposés dans les années 70. Les inconvénients de ces procédés sont d'une part qu'ils n'effectuaient qu'un traitement partiel. D'autre part certains, limités en température d'opération par les matériaux utilisés, présentaient des doutes quant à leur rentabilité économique. La présente invention pallie à ces carrences en redéfinissant le problème et en le décomposant en 3 problèmes élémentaires qui sont chacun traité séparément sur le même principe mais avec des matériaux adaptés. Le procédé s'étend aux traitements d'hydrocarbures contaminés tels les huiles usées, les solvants organiques, etc..). En résumé il s'agit de traiter une huile usée, préalablementdébarrassée des parties volatiles et de son contenu en eau par une distillation éclaire classique, pour fournir deux produits. Le premier, une graisse contenanttous les contaminants graphite et particulaire et entre 50 et 75% des métaux lourds. Ce traitement consiste en une microfiltration tangentielle par membranespolymèriques ou inorganiques (porosité entre 201 et 4500 A). Cette graisse est alors mélangée à un hydrocarbure léger jouant le rôle de solvant et retraiter dela même manière. Les contaminants sont alors disposés et l'huile recuillie est séparée du solvant par une distillation éclaire. Le second produit du premier traitement est une huile de bonne qualité contenant encore quelques traces de métaux lourds et une couleur assez foncée. Ce produit intermédiaire a été traité, après mélange avec un solvant, par un système à membranes polymériques ou inorganiques, de nanofiltration (porosité entre 10 et 35A). Le produit fini est alors séparé du solvant par une distillation éclaire et sa qualité est excellente comme huile de base qui, munie d'additifs, sera une huile pour moteur de qualité égaleou supérieure à une huile neuve.
Patent CA-2022087-A1 (CA)
IPC: B64C23/08
Filed: 1990-07-27
Abstract: La présente invention porte sur un moyen de sustentation aérienne par le recours à des jets d'air qui sont projetés (par des "becs") exclusivement et presque tangentiellement sur le dessus d'un cylindre rotatif de Magnus afin d'y créer une dépression. La surface ainsi balayée par ces jets (et que nous appelons "plage utile") est limitée un peu plus loin par une gratte qui fait décoller le jet de la surface du cylindre rotatif. L'énergie requise pour pomper l'air projeté sur le cylindre est utilisée avec le maximum d'efficacité parce que, contrairement aux traditionnels cylindres de Magnus immergés totalement dans le flux pompé, les jets canalisés par le bec et la gratte précités ne créent aucune portance inutile ou négative ni aucune zone importante de turbulences. Un grand nombre de dispositifs accessoires sont aussi proposés pour rendre ce principe pratique et utilisable. En particulier, les éléments précités sont regroupé en plusieurs modules et ces modules sont protégés par des parois et des persiennes. Cet aéronef est contrôlé surtout par des déplacements de la gratte précitée qui font varier la surface de la plage utile.
Patent CA-2022436-A1 (CA)
Title: 7-hydroxy coumarins having substitutions in the 4 position
Inventor: BOUMA STANLEY R
IPC: G01N33/52
Filed: 1990-08-01
Abstract: Fluorescent 7-hydroxy coumarin compounds with substitutions in the 4-position and having a length greater than one carbon. More specifically, there is provided a compound of the formula:   (see formula I) wherein R, is selected from the group consisting of -CH3, -G-OZ, -G-SZ, -G-NHY, -OZ, -SZ, -NHY, and alkyl of the formula -G-CH3, where G represents an alkylene chain having from 1 to 12 carbon atoms, and Z represents hydrogen or a protecting group for O or S, and Y represents hydrogen or a protecting group for N; and wherein R2 is selected from the group consisting of -J-SH, -J-X, -OH, -SH, and -COOR', where J represents an alkylene chain having from 1 to carbon atoms, X represents a halogen and R' represents H or an alkyl chain having from 1 to 10 carbon atoms. Also provided is a process for synthesis of these compounds the process comprising the steps of: a) reacting 4-bromomethyl-7-methoxycoumarin with a monoalkylated (R1) malonic ester under conditions sufficient to achieve condensation of the ester to give the monoalkylated (2-bis(carbalkoxy)-2-R1 -1-ethyl) derivative; b) removing one of the carbalkoxy groups from the product of step a); c) demethylation of the product of step b) to give the 7-hydroxycoumarin compound; and d) chemically modifying the remaining ester to yield a desired R2.
Patent CA-2022952-A1 (CA)
Title: Toy
Inventor: SALVOSA LUIS
IPC: A63H1/32
Filed: 1990-08-08
Abstract: ABSTRACT   The toy is for all ages. The invention consists of a 3" wheel that is held by two pieces of 2' twines each of which passes through one of two opposite holes, approximately 112" apart, near the centre of the wheel. The ends of the twines on either side of the wheel is joined and attached to the end of a control handle, approximately 7" long, on each side. Another similar set is attached on the other ends of the same control handle. There are two handles, one to be held in each hand. The purpose of the invention is to set both wheels in continuous circular, back and forth, motion by an operator pulling outwardly and contracting inwardly on the control handles. The skill required to operate the toy creates challenge and fun. The arm, hand, and shoulder muscles are exercised as a result of tension required by the toy. Keeping both wheels in continuous motion and watching the fascinating effects from the application of different handle positions and tensions on the twines may help reduce stress.                       Page 1 of 1
Patent CA-2024069-A1 (CA)
Inventor: HUANG SIH C
IPC: G01B5/00
Filed: 1990-08-27
Abstract: TITLE:  PORTABLE GYROSCOPIC GOLF BALL CENTERPLANE        MARKING DEVICE          ABSTRACT OF THE DISCLOSURE    A  device consisting of a housing,  an  electrical motor  and  an  activation  switch.   The  housing   is cylindrical  and  basically  hollow,  with  a   battery compartment  located  at its lower end  and  an  arched cover  at its upper end.  The arched cover has a  semi-circular  marking  slot on it.  The arched  cover  fits frictionally  on  the upper part of the  housing.   The electric  motor  has a driving shaft on its upper  end which  drives a rotor dish to rotate.   The  activation switch is electrically connected to the electric  motor to activate or deactivate the rotor dish.
Patent CA-2025747-A1 (CA)
Inventor: MARMAR JOEL L
IPC: A61F5/41
Filed: 1990-09-19
Abstract: A therapeutic  device is  provided for assisting in the maintenance of an erection in a male penis which is  a continuous ring  prepared  from  a  solid elastomeric material which is very soft, highly extensible and exhibits a very low modulus, the ring having a circular inner diameter and circular cross-section which is of a size adaptable to  be  readily  placed  about  and snugly engage the base end of a penis with sufficient radial compressive force applied  to the  penis to  restrict outward  veinal flow of blood from the penis without complete occlusion of arterial blood flow.
Patent CA-2031263-A1 (CA)
Title: Pipe lining system
Inventor: NORTHCUTT GERALD G
IPC: B05D3/06
Filed: 1990-11-30
Abstract: ABSTRACT       There is described an improved method for lining a pipe utilizing  a  pipe-received  forwardly  traveling  machine comprising a forward seal and a following cylindrical platen defining a chamber therebetween, the method including the steps of forming the platen of a radiant energy transparent material and with an internal source of radiant energy, introducing a flowable liner-forming material into the chamber, distributing the flowable material in an annular space about and along the cylindrical platen between the platen and the pipe to define a constant thickness liner, and supporting the material in the space by the platen as the machine travels forward to form the liner in intimate contact with the pipe, and subjecting the liner material to radiant energy through the platen, as the material is supported by the platen, for curing or accelerating the curing of the liner material.
Patent CA-2032307-A1 (CA)
Title: Articulation angle sensor
Inventor: DIERKER JOSEPH B JR
IPC: B60T8/32
Filed: 1990-12-14
Abstract: ABSTRACT          Sensors (170, 172) for sensing articulation angle (AA) and/or a time derivative thereof (dAA/dt, d2AA/dt2) for a trailer anti-swing control system are provided.  In the preferred embodiments, at least the active transducers of the sensors are mounted to the tractor (12) subvehicle of the articulated vehicle system (10).
Patent CA-2032897-A1 (CA)
Title: Refuse container with snap-on cover
Inventor: SMITH FRED P
IPC: B65F1/16
Filed: 1990-12-20
Abstract: Abstract of the Disclosure A refuse container has a lid that is hinged thereto without the use of mechanical fasteners. The container has short shafts extending therefrom. The lid has arms that pivotally receive and are captured on the container shafts. The shafts are formed with sectors, and the lid arms have recesses that receive the sectors. The lid arms recesses define stepped surfaces located at predetermined locations relative to the container sectors so as to positively stop the lid at a desired open position. The lid arms may be formed with dual radius recesses connected by a flat surface. The container sectors and the recess surfaces are dimensioned to enable the lid to be freely pivoted to an intermediate open position approximatety 90° from a closed position and subsequently in a controlled manner to a third open position approxi-mately 270° from the first position. The mold for making the container and lid has a flat parting surface.
Patent CA-2033185-A1 (CA)
Title: Device for removing worn nozzle bricks or nozzle linings from metallurgical vessels
Inventor: GORTAN DIETER
IPC: B22D1/00
Filed: 1990-06-08
Abstract: ABSTRACT:     DEVICE FOR REMOVING WORN NOZZLE BRICKS OR NOZZLE LININGS FROM          METALLURGICAL VESSELS     A device for removing worn nozzle bricks or nozzle linings from the tap holes of metallurgical vessels comprises a spreading device (20), which can be introduced into the nozzle brick or tap hole, and a drive for extracting the nozzle brick or lining by means of the spreading device. The spreading device (20) is arranged on a tool holder (9) which can be displaced axially on a support, in particular a carriage (8). The tool holder (9) can be connected to at least one drive. The tool holder (9) advan-tageously comprises an axial cavity (12) in which a toothed shaft (13, 14) is rotatably mounted. The toothed shaft (13) meshes with the toothing of at least two, and preferably three, spreading jaws (20) which slide radially in the tool holder (9)  (Figure 2).
Patent CA-2033469-A1 (CA)
Title: Composition and method for the treatment of osteoporosis in mammals
Inventor: BUERK ROBERT R
IPC: A61K38/00
Filed: 1990-12-31
Abstract: A composition for the treatment of osteoporosis in mammals comprising Insulin-like Growth Factor I (IGF-I) and method of treating osteoporosis therewith is disclosed.
Patent CA-2035511-A1 (CA)
Inventor: CHRISTENSEN LEIF L
IPC: A22B1/00
Filed: 1991-02-07
Abstract: Apparatus is provided for separating a flock of animals into groups, prior to being slaughtered in a slaughterhouse. The apparatus comprises an oblong corridor (5) which is wide enough to allow the animals to turn around in the corridor, and at least one transverse wall (7; 8; 9) protrudes from one side wall of the corridor so far into the corridor that two animals cannot pass through the gap between the transverse wall and the other side wall of the corridor at the same time, whereas one animal has free access through the gap.   <IMAGE>
Patent CA-2036341-A1 (CA)
Title: Flexible fiber optic distribution cable
IPC: G02B6/44
Filed: 1991-02-14
Abstract: ABSTRACT OF THE DISCLOSURE          Described is a fiber optic distribution cable having increased flexibility despite the presence of a metallic shield.  The shield is a metal tape having dense transverse corrugations.  Flexibility also arises from the use of multiple strength members and filaments rather than a single tensile strength member.  Such flexibility is highly useful when routing the cable through distribution pedestals.
Patent CA-2036616-A1 (CA)
Title: Endoscope
Inventor: SUZUKI FUMIO
IPC: A61B1/00
Filed: 1991-02-19
Abstract: ABSTRACT OF THE DISCLOSURE      An endoscope comprising as an image-transmitting member a multifilament type plastic optical fiber in which 50 to 20,000 islands having a core-sheath structure, a core diameter of 2 to 70 µm and a circular or substantially circular section are arranged in a zigzag-stacked or square-stacked structure in the sea having a circular or substantially circular section, so that the lamination structure of the entire cores has a substantially circular shape in the section of the image-transmitting portion, wherein the same positional relationship of the ends of light-transmitting paths arranged in the section of the optical fiber is maintained on both the ends of the optical fiber, the periphery of the section of the image-transmitting portion of the optical fiber has a circular or substantially circular shape, and an object lens is attached to one end of the image-transmitting member and an image-transmitting light-receiving member is arranged on the other end of the image-transmitting member.
Patent CA-2037455-A1 (CA)
Inventor: ANNIS JEFFREY R
IPC: B25B7/10
Filed: 1991-03-01
Abstract: Abstract of the Disclosure Self-adjusting pliers for single-handed manual manipul-ation will automatically adjust  to positions of positive gripping and holding of any size workpiece within the size range defined by the maximum opening between the jaw por-tions of the pliers, which jaw portions respectively extend parallel to jaw portion axes.  Upon closure from the maximum opening, parts first undergo a sliding action along an axis until the workpiece is engaged and then a pivoting action.          The plier handles have bearing surfaces inclined at angles in predetermined ranges to the sliding axis and to the jaw portion axes to facilitate shifting from the sliding action to the pivoting action.
Patent CA-2037821-A1 (CA)
Title: Amyloid peptide precursor rna
Inventor: VITEK MICHAEL P
IPC: A61P25/28
Filed: 1991-03-08
Abstract: 31,179-00 AMYLOID PEPTIDE PRECURSOR RNA     ABSTRACT OF INVENTION                    A human amyloid peptide precursor RNA from the  brains  of  persons  afflicted  with  Alzheimer's disease and Down's syndrome is described.  The RNA is virtually absent from mouse or rat brain tissue yet is abundant  in  human  brain  tissue.   A  cDNA  clone corresponding to the RNA predicts the existence of a 365  amino  acid  protein  that  is  similar  to  the amino-terminal  end  of  an  amyloid  peptide  precursor previously  described   (APP  770),   but  lacks  the beta-amyloid peptide or any hydrophobic transmembrane spanning  domains.   These  features  suggest that  the human RNA codes for a soluble protein containing a Kunitz protease inhibitor.
Patent CA-2037831-A1 (CA)
Inventor: OTSUKA YOSHIKI
IPC: C12N15/28
Filed: 1991-03-08
Abstract: A pharmaceutical composition and a method for its use in the treatment of severe chronic inflammatory diseases, such as demyelinatig disease, uveitis and graft-versus-host disease are provided.  The composition comprises tumor necrosis factor as an active ingredient and at least one pharmaceutically acceptable carrier, diluent or excipient.
Patent CA-2037968-A1 (CA)
Title: Slant plate type compressor with control valve pressure response adjusting means
Inventor: TERAUCHI KIYOSHI
IPC: F01M9/02
Filed: 1991-03-11
Abstract: A slant plate type compressor with a capacity or displacement adjusting mechanism is disclosed. The compressor includes a housing having a cylinder block provided with a plurality of cylinders and a crank chamber. A piston is slidably fitted within each of the cylin-ders and is reciprocated by a drive mechanism which includes a slant plate having a surface with an adjustable incline angle. The incline angle is controlled according to the pressure in the crank chamber. The pressure in the crank chamber is controlled by a control mecha-nism which comprises a first passageway linking the crank chamber and the suction chamber, and a valve device which controls the clos-ing and opening of the first passageway. The valve device includes a valve element which directly controls the closing and opening or the first passageway, a first valve control device which controls the posi-tion of the valve element in response to pressure in the crank cham-ber, and a second valve control device which include a second pas-sageway linking the crank chamber and the discharge chamber and an actuator disposed in the second passageway. The second valve control device controls the predetermined crank pressure operating point of the first valve control device. The operation of the second valve con-trol device is controlled in response to changes, in the thermodynamic characteristics of the refrigerant circuit so as to open and close the second passageway.
Patent CA-2040037-A1 (CA)
Title: Liquid level gauging system
Inventor: MESTON KELLY
IPC: G01F23/30
Filed: 1991-04-09
Abstract: ABSTRACT OF THE DISCLOSURE     Apparatus for    packing    off    a    vapour-tight cable-and-float  connection  to  a volatile fluid-containing tank in which vapour under  moderate  pressure  is  generated.   A  closed-end packoff chamber is provided, through which the float cable passes, the chamber containing solid end packings and a volume of viscous grease between the solid packings to seal off tank vapour within a closed cable assembly connected to the packoff apparatus.
Patent CA-2040696-A1 (CA)
Title: Filter for aquarium
Inventor: THIEMER HELMUT
IPC: A01K63/04
Filed: 1991-04-17
Abstract: ABSTRACT OF THE DISCLOSURE           A filter for aquarium  has      a housing having a bottom chamber and at least one filter compartment for a filter material located above the bottom chamber  a supply arranged so that water is supplied from above so as to pass the filter compartment and float to the bottom chamber, a pump for pumping water from the bottom chamber back into the aquarium, so that the filter operates as alternating lifting-lowering filter.  Each of the filter compartments has    at least one overflow aspiration lifting device with an inlet located at a base side and substantially at a height of a bottom of the filter compartment and an outlet which opens down-wardly toward a next one of the filter compartments.
Patent CA-2040827-A1 (CA)
Inventor: SATHER STANLEY H
IPC: F28F27/02
Filed: 1991-04-19
Abstract: A steam heat exchanger for a wood pulp dryer. The heat exchanger has a plurality of tubes extending between the ends of the heat exchanger in parallel,spaced-apart relationship to each other. A plurality of fins is connected to the tubes. There is an outlet header near the bottom of the heat exchanger, the outlet ends of the tubes being connected to the outlet header. There is a steam inlet header near the top of the heat exchanger. The inlet header has an inner conduit with a plurality ofopenings spaced-apart therein for discharging steam from the inner conduit. There is an outer conduit extending about the inner conduit. The inlet ends of the tubes are connected to the outer conduit.