baber/WOPTO huggingface dataset:
Patent CA-2127816-A1 (CA)
Title: Secondary and tertiary phosphines and processes for their preparation
Inventor: STELZER OTHMAR
IPC: C07F9/58
Filed: 1994-07-12
Abstract: Secondary and tertiary phosphines and processes for their preparation Abstract The invention relates to secondary and tertiary phos-phines of the formula   in which R is hydrogen, an aryl or benzyl group or a straight-chain or branched alkyl group, n is 1 or 2 and M is potassium or sodium.         These phosphines are prepared by reacting either alkali metal salts of fluorobenzene-2,4-disulfonic acid with phosphine or with primary or secondary phosphines, or secondary phosphines of the type HP[C6H3-2,4-(SO3M)2]2 with a compound RX in which R is an alkyl, aryl or benzyl group and X is a halogen, in an aprotic solvent in the presence of at least stoichiometric quantities of a solid, powdered alkali metal hydroxide at temperatures of from 0 to 100°C.
Patent CA-2128353-A1 (CA)
Title: Organosiloxane-Bonded Transition Metal Complexes
Inventor: DAUTH JOCHEN DIPL CHEM DR
IPC: C08G77/58
Filed: 1994-07-19
Abstract: Organosiloxanes containing at least one chemically bonded transition-metal complex of Pt, Pd, Rh, Ru, Os or Ir with a triazene, tetrazene, tetrazadiene, pentazadiene or triazene oxide ligand, are hydrosilylation catalysts which can be activated by light and heat.
Patent CA-2128396-A1 (CA)
Title: Method for the preparation of a hardening salt in lump form
Inventor: SCHALKE PETER
IPC: C01C3/14
Filed: 1994-07-20
Abstract: ABSTRACT OF THE DISCLOSURE          For the preparation of a salt mixture for hardening steel parts, consisting of potassium cyanate, potassium carbonate and sodium carbonate, 2.2 to 2.3 moles of urea is first reacted with 1 mole of potassium carbonate to form potassium cyanate.  The escaping ammonia is converted with formaldehyde into hexamethylenetetramine.  The reaction product, consisting of potassium cyanate and potassium carbonate, is ground, mixed with powdered sodium carbonate and pressed at between 80 and 230°C into composites.  The process has the advantages of: good recovery of ammonia, good yield of cyanate, very low formation of cyanide, and conventional powder press technology utilization.
Patent CA-2128788-A1 (CA)
Title: Process for recycling polymers having repeating ether linkages
Inventor: SISKIN MICHAEL
IPC: C08G65/32
Filed: 1993-02-17
Abstract: The present invention is a process for converting high molecular weight essentially water insoluble polymers having repeating or multiple ether linkages in the polymer backbone into their corresponding alcohols and other monomeric and lower weight oligomeric units by forming an aqueous mixture of the polymer in a ratio by weight of liquid water to polymer of at least 1:1, preferably neutral water, and heating the mixture under autogeneous pressure at a temperature of from about 200 ·C to about the critical temperature of water (374 ·C), more preferably from about 200 ·C up to about 350 ·C. Heating is continued for a period of time sufficient to depolymerize the polymer, depending on temperature and the amount of water present, and the number of polymeric ether linkages in the feedstock, and the amount of conversion desired.
Patent CA-2129479-A1 (CA)
Inventor: CHANG CHUNG-HSHING
IPC: B25B13/12
Filed: 1994-08-04
Abstract: An  adjustable  wrench  has  a  handle  and  a  head  formed integrally at the anterior end of the handle. The head is provided  with  a  fitting  hole,  a  receiving  hole,  and  a through hole in communication with the fitting hole.  Located at two opposite sides of the fitting hole are two fixed clamping  surfaces.  A  rotation  knob  is  disposed  in  the receiving  hole. An  adjustment  bolt  is  put  through  the through hole and the ring hole of the rotation knob such that one end of the adjustment bolt  is received  in the fitting hole. The one end of the adjustment bolt is provided with a movable clamping surface forming a clamping space in conjunction with the two fixed clamping surfaces. The ring hole  of  the  rotation  knob  is  provided  with  threads engageable with threads of the adjustment bolt. A location pin is fastened to the head such that the locating pin is inserted into a groove extending axially in the adjustment bolt. When the rotation knob is turned, the adjustment bolt is caused to move linearly to adjust the position of the movable clamping surface.
Patent CA-2132469-A1 (CA)
Title: Hockey stick locking device
Inventor: SOMLO TIBOR
IPC: A63B60/00
Filed: 1994-09-20
Abstract: This invention is a lacking  device for a joint to releas-ably secure against separation of the head portion to a shaft portion of a sport implement, and particularly where a head portion of the sports implement is for striking an object such as a blade of a Hockey stick to a Hockey puck.
Patent CA-2132521-A1 (CA)
Title: Method for SOx Removal by Catalytic Carbon
Inventor: HAYDEN RICHARD A
IPC: C01B32/336
Filed: 1994-01-20
Abstract: An improved process is provided for the removal of sulfur oxides from gas or liquid media containing oxygen and water by contacting said media with a catalytically-active carbonaceous char. The improvement is provided by the use of a catalytically-active carbonaceous char prepared by a low-temperature carbonization and oxidation of a bituminous coal or bituminous coal-like material followed by exposure to a nitrogen-containing compound during the initial high-temperature exposure of the low-temperature oxidized char. Following this initial high-temperature treatment the material can be further calcined or activated as desired.
Patent CA-2132686-A1 (CA)
Title: Method and apparatus for mounting an insulator thread onto a pin of a power line
Inventor: AGHAMEHDI HOSSEIN
IPC: H01B17/20
Filed: 1994-09-22
Abstract: ABSTRACT         In a unit for mounting a primary insulator for power lines onto a pin, a threaded element has an inner diameter which decreases along the length of the threaded element from its top to bottom.  The threaded element surrounds a portion of the pin, forming a gap defined by the outer peripheral surface of the pin and the inner diameter of the threaded element.  An adhesive resinous material, such as epoxy, is permitted to cure within the gap and forms a strong bond with the pin, which may be metal or fiberglass.  An interference fit, or interlock, is formed between the threaded element and the adhesive resinous material.  The threaded element may be plastic, and a lubricating powder may be dispersed throughout the threaded element.
Patent CA-2133089-A1 (CA)
Title: Novel cyclic amino acids and derivatives thereof
Inventor: BEYLIN VLADIMIR
IPC: C07D335/20
Filed: 1993-04-16
Abstract: Novel cyclic amino acids which are useful in preparing biologically active peptides as well as a process for the preparation of D and L enantiomers of the cyclic amino acids are described where an N-protected derivative of the racemic cyclic amino acid is treated with (-)cinchonidine and the resulting salt resolved into the desired enantiomers, as well as derivatives thereof and valuable intermediates used in the process.
Patent CA-2135453-A1 (CA)
Title: Method and equipment for synthetic yarns stretch by using steam as heating means
Inventor: BALLARATI VITO
IPC: D06C3/00
Filed: 1994-11-09
Abstract: Method for stretching a thermoplastic synthetic yarns set, in the form of warp chain characterized in that steam is used as heating means, in the form of laminar jets directed on to the yarn transversally with respect to the direction run of the yarn.
Patent CA-2135950-A1 (CA)
Inventor: SESHADRI NAMBIRAJAN
IPC: H04J3/00
Filed: 1994-11-16
Abstract: A low delay multiple access scheme called Shared Time-Division Duplexing (STDD), allows both uplink and downlink voice traffic to share a common channel. The scheme contains separate uplink and downlink control channels and a common voice information channel. The control channels comprise means for signalling voice requirements and acknowledgements of the time slot allocation. Using speech activity detection only, talk spurt speech packets are generated for transmission. STDD dynamically allocates time slots in the common information channel taking advantage of co-ordinated two-way conversations to achieve high statistical multiplexing gain and more efficient realization of the common information channel.
Patent CA-2136429-A1 (CA)
Title: Combined vaccines comprising hepatitis b surface antigen and other antigens
Inventor: PETRE JEAN
IPC: A61K47/48
Filed: 1993-05-15
Abstract: Stable and effective multivalent vaccine compositions comprising Hepatitis B  surface antigen (HBsAg) are described wher-ein the HBsAg component is stable for one week at 37 °C and is highly immunogenic, for example when the vaccine is adminis-tered to infants. The compositions typically comprise HBsAg adsorbed to aluminium phosphate and other antigens, especially those suitable for use in a paediatric vaccine, adsorbed to aluminium phosphate or aluminium hydroxide. Methods for preparing the vaccines and the use of aluminium phosphate to stabilise HBsAg in a multivalent vaccine formulation are also described.
Patent CA-2142224-A1 (CA)
Title: Real-time demand-driven imaging architecture
Inventor: COK RONALD S
IPC: G06T1/20
Filed: 1995-02-10
Abstract: A network-and-storage based imaging system is composed of an input subsystem of acquisition nodes and processing nodes which respond in real-time to external triggers to capture of images for input to the image archive, and a user-interactive output subsystem of demand nodes and output devices which are demand-driven in response to user commands.  A computing device at each of the processing and demand nodes, and a network connecting all of the nodes allow each node to interact with other nodes on the network.  The output subsystem includes demand computers different from the image processing computers, whereby the image processing computers need not be available for demand functions and are thereby available for real-time input.  The image archive includes a plurality of memory storage devices; and the output has access to all of the memory storage devices.
Patent CA-2146626-A1 (CA)
Title: Preparation of 3-mercaptopropionitrile and 3-mercaptopropionic acid
Inventor: WOODBURY RICHARD P
IPC: C07C319/12
Filed: 1995-04-07
Abstract: Facile process for the production of 3-mercaptopropionitrile and 3-mercaptopropionic acid by reacting thiodipropionitrile with alkaline hydrosulfide in the presence of alkaline hydroxide.      Acidification of the resulting reaction product with a strong acid, or saponification, yields the desired mercaptopropionic acid, which can be isolated in high yield.
Patent CA-2148672-A1 (CA)
Title: Stable preparation for the treatment of blood coagulation disorders comprising an active coagulation promoting substance
Inventor: EIBL JOHANN
IPC: C12N9/96
Filed: 1995-05-04
Abstract: The invention relates to a stable preparation for the treatment of blood coagulation disorders which comprises an active coagulation promoting substance, such as for example an activated coagulation factor and optionally other proteins, which are bound in or on lipid vesicles. The preparations can can be made available in a virus inactivated form.            The invention also relates to the use of lipid vesicles which are bound with thrombocyte-like blood coagulation factors for the production of a preparation for the treatment of blood coagulation disorders which are connected with a lack of activated thrombocytes.            Further, the invention relates to methods for the production of preparations for the treatment of blood coagulation disorders.
Patent CA-2148818-A1 (CA)
Title: Gear tooth topological modification
Inventor: KISH JULES G
IPC: B23F19/00
Filed: 1993-12-16
Abstract: The topology of parallel axis gears, such as spur and helical gears is modified to produce quieter and more smoothly operating gear sets with more uniform load distribution. A finite element analysis of the gear in its operating mode is made to produce a plot of radial and tangential deflections of the pinion and gear tooth surfaces which will occur when the gears are loaded during operation. The resultant plot is then inverted to produce a plot, or see of coordinates, which will define the path of travel of the gear tooth grinding wheel, which path is a mirror image of the plot of the finite element analysis. The resulting gears, when subjected to operating loads, will thus be deflected tangentially and radially to their optimum operating, or theoretical true involute, positions so as to produce quieter, smoother, and more evenly loaded gear trains.
Patent CA-2155232-A1 (CA)
Inventor: BAKER VICTOR W
IPC: E04D13/17
Filed: 1995-08-02
Abstract: These and other objects of the invention are provided in a new, stud mounted or on top cord of roof trusses, which in a preferred embodiment is characterized by its corrugation. The invention corrugated air spacer can be cut to fit any wall size cavity, or roof truss opening.     This invention will be better understood by reference to the accompanying drawings within.
Patent CA-2156358-A1 (CA)
Inventor: RIZZI DOUGLAS J
IPC: B60R21/26
Filed: 1995-08-17
Abstract: An apparatus for use in inflating an air bag comprises a container (15) containing a supply of inflation fluid.          The container has a first outer surface (19) and an inner surface (26) which is threaded and defines a threaded opening extending into the container from the first outer surface.  A plug (40) has an outer periphery (45) which is threaded.  The plug is screwed into the threaded opening in the container.  The outer periphery of the plug includes a second outer surface (51) adjacent the first outer surface of the container.  The outer periphery of the plug and the inner surface of the container that defines the threaded opening comprise an interface (11) between the plug and the container.  The interface extends to the periphery of the container between the first and second outer surfaces.  A ring (30) overlies both the interface and portions of the first and second outer surfaces.  The ring is secured to the first and second outer surfaces to block leakage of inflation fluid from the container through the interface.
Patent CA-2157697-A1 (CA)
Title: Vascular incisor/dilator
Inventor: LARY BANNING GRAY
IPC: A61M25/10
Filed: 1995-09-07
Abstract: A device and method for clearing a stenosis in a vessel of a patient requires a probe catheter having a cone-shaped probe at its distal end. The probe has a distally diminishing taper and also has a plurality of blades which are mounted on the probe and longitudinally aligned with the probe catheter. Advancement of the probe through the vessel to the stenosis can be accomplished either over a prepositioned guidewire or through a prepositioned guide catheter. At the stenosis, the probe with mounted blades are reciprocally moved back and forth across the stenosis to incise and dilate the stenosis and, thus, clear the stenosis. Movement of the probe across the stenosis can be facilitated by selectively activating a rigidizer which is located on the probe catheter immediately proximal to the probe. Additionally, a balloon can be mounted on the probe catheter proximal the probe member and selectively inflated at the stenosis after the stenosis has be incised and dilated.
Patent CA-2158027-A1 (CA)
Title: Low product alarm for solid products
Inventor: THOMAS JOHN E
IPC: A47L15/44
Filed: 1994-03-31
Abstract: A low product level de-tector is disclosed which utilizes a sensor comprised of an in-frared emitter (103) and receiver (104) to project a beam of light (105) across a cavity/enclosure which contains a solid product (65). When the product reaches a level at which mole solid prod-uct should be added, an alarm indicia means is triggered. The alarm indicia means is comprised of an audible horn (106) and a visually perceptible light (107). The low product alarm is utilized in a dispenser (10) for dispensing a wash chemical solution which has been created by dissolving a solid wash chemical in a diluent. By maintaining a predetermined amount of solid wash chemical in the dispenser, the wash chemical solution maintains a more con-stant concentration.
Patent CA-2160766-A1 (CA)
Inventor: GUASCH JAMES A
IPC: F26B21/00
Filed: 1995-10-17
Abstract: Apparatus for creating a flow of air in a hollow wall or ceiling to aid in drying a wall or ceiling which has become wet generally through a disaster such as broken pipes, flooding, leaking roof, includes a conduit having a first end sized and configured to fit and be secured over and around an opening in a wall or ceiling which has an electrical box mounted therein. The conduit will generally be provided with holes positioned to be aligned with the usual cover plate mounting holes in a wall switch or outlet, or fixture mounting holes in the box itself, through which screws can be positioned to effect securement of the conduit. A second end of the conduit is configured to accept the end of an air supply hose or a vacuum supply hose, such as extending from the outlet or the inlet, respectively, of a usual air blower, and an air flow passage extends from the second end to the first end to direct air into or draw air from the wall or ceiling through and around the electrical box. A sealing foam facilitates mounting of the conduit over electrical boxes of varying depth in the opening with screws of a set length.
Patent CA-2162086-A1 (CA)
Title: Agent for reducing nephrotoxicity due to medicine
Inventor: ISE MICHIHITO
IPC: A61K33/243
Filed: 1995-11-03
Abstract: An agent for reducing nephrotoxicity due to a platinum complex compound, comprising an activated spherical carbon as an active ingredient is disclosed.
Patent CA-2163839-A1 (CA)
Title: Method and apparatus for mapping texture
Inventor: OKA MASAAKI
IPC: G06T15/04
Filed: 1995-11-27
Abstract: In a real-time texture mapping system, a more solid and naturally-mapped  image  is  obtained with a minimum  of  computation volume.    The  texture-mapping system adds a texture image to an area of a polygon which forms a  fundamental  unit  of  three-dimensional  image information of an object to be displayed on a screen. A geometry transfer engine (GTE) 61 extracts representing points from the polygonal area.  Then, coordinates of the thus extracted representing points are subjected to the perspective transformation.  Thereafter, the representing points,  after  the  perspective  transformation,  are subjected  to  the  linear  interpolation  in  a  graphic processing unit (GPU) 62 so that the image is formed.
Patent CA-2163857-A1 (CA)
Title: Water purification system and removal of halides
Inventor: FROMMER MOSHE A
IPC: C02F1/76
Filed: 1994-05-25
Abstract: A process for the purification of water to render it fit for drinking. It is passed first through a halogenated resin and after this through activated carbon impregnated with silver, which contains a comparatively high silver content, of at least two per cent by weight, and up to about 14 weight per cent. A purification system for carrying out such process comprising a sequence of a layer of halogenated resin followed by activated carbon impregnated with at least two weight per cent silver. The impregnated silver absorbs efficiently a high percentage of bromide/bromine, iodide/iodine or mixtures of these.
Patent CA-2164950-A1 (CA)
Inventor: DE RIJKE JAN MARTIN
IPC: C07C29/16
Filed: 1994-06-14
Abstract: Réaction chimique exothermique, par exemple l'hydroformylation, réalisée dans une succession de réacteurs en boucle (10, 20, 30). Une source de réactif frais alimente non seulement le premier réacteur (10) mais également le deuxième (20), ce qui permet d'obtenir un débit global amélioré et simultanément d'entretenir une température stable au moins dans le premier réacteur (10).
Patent CA-2164977-A1 (CA)
Title: An apparatus for fusing two workpieces produced from sheet metal
Inventor: PETER ARNE
IPC: B23K13/02
Filed: 1994-05-25
Abstract: An apparatus for welding together two metal sheets (4, 5) includes clamping rails (17, 18; 23, 24) for positionally fixing the sheets (4, 5) each on a table (2, 3), and an induction device movable towards and away from a joint (15) between the metal sheets (4, 5) and along the direction (16) for heating the metal sheets (4, 5) in the joint region (15). The induction device displays a first conductor which extends along and adjacent the joint (15). The clamping rails (17, 18; 23, 24) are disposed two (17, 23) at the one sheet (5), and two (18, 24) at the other sheet (4), one on either side of each respective sheet, and along and a slight distance away from the joint (15). The clamping rails (17, 18; 23, 24) are disposed without electric conducting connection with the first conductor, are manufactured from electrically conductive material, and are electrically connected to the sheets (4, 5).
Patent CA-2166993-A1 (CA)
Inventor: MAKELA JAAKKO
IPC: F04C15/00
Filed: 1994-07-01
Abstract: Ce rotateur comporte un axe (8) auquel est associé un élément rotor (1) muni d'ailettes lamelliformes (2), d'un élément carter (3) renfermant l'ensemble, de chambres (7) intermédiaires disposées symétriquement par rapport à l'axe, d'ouvertures pratiquées dans les chambres pour l'admission et l'évacuation de l'huile sous pression, d'éléments paliers (9, 10) situés des deux côtés de l'élément rotor (1) par rapport au sens de l'axe. Ce dispositif comporte un palier pressurisé (10) placé sous le palier supportant la charge de l'axe, c'est-à-dire le rotor. Le palier pressurisé se compose d'un organe conique (11, 12) situé entre le carter (3) et l'axe (8). Le carter (3) est muni de canaux (19) partant des chambres (7) et aboutissant à la surface inférieure de l'organe conique (11, 12). Les parties supérieures et inférieures de l'organe conique  (10) sont munies de joints (13, 14). L'organe conique est dimensionné de façon que la pression s'exerçant sur les surfaces coniques relève l'axe (8) pour le dégager du carter (3) et le font retomber en position freinée (du fait de la friction) lorsque la pression cesse de s'exercer.
Patent CA-2170354-A1 (CA)
Inventor: BROWN ROBIN PETER
IPC: A61B17/80
Filed: 1994-08-29
Abstract: L'invention décrit un dispositif et un procédé pour la fixation chirurgicale de parties osseuses, en particulier pour une thoracotomie trans-sternale bilatérale. Le dispositif comprend une pièce de base (1), sur laquelle font saillie deux pitons (2, 3) qui lui sont soudés ou fixés et comportent un filet intérieur permettant de recevoir des vis (4, 5). Une plaque (6) pourvue de trous (7, 8) peut être disposée sur les pitons (2, 3) et fixée par rapport à ceux-ci par les vis (4, 5). Dans le procédé de fixation des parties osseuses mettant en oeuvre ce dispositif, les pitons (2, 3) sont introduits dans des trous (9, 10) percés dans chaque partie osseuse (11, 12), de telle sorte que les parties osseuses soient maintenues ensemble avec leurs surfaces sciées (13, 14) face à face. La plaque (6) est placée au-dessus des parties osseuses et vissée en position dans les pitons par les vis (4, 5), à travers les trous et la plaque (7, 8).
Patent CA-2171583-A1 (CA)
Title: Agent for improving surface quality of paper
Inventor: NASU KENJI
IPC: D21H17/43
Filed: 1996-03-12
Abstract: An agent for improving surface quality of paper comrising an acrylamide resin composition obtained by hydrolyzing an acrylamide resin which is obtained by polymerizing an acrylamide monomer in the presence of a urea compound, or copolymerizing an acrylamide monomer and an acrylonitrile monomer; an acryl amide monomer and a cross-linking agent; or an acrylamide monomer, an acryl nitrile monomer and a cross-linking agent in the presence of a urea compound.   This agent provides paper with excellent surface strength, tensile strength and internal strength far better than conventional paper quality improving agents.