baber/WOPTO huggingface dataset:
Patent CA-1215193-A (CA)
Inventor: CAVITT MICHAEL B
IPC: C08G59/00
Filed: 1983-08-16
Granted: 1986-12-09
Abstract: ABSTRACT OF THE DISCLOSURE           This invention is directed to a process for hydrolyzing an epoxy resin by reacting said epoxy resin with water in the presence of a catalyst.  This inven-tion is characterized by conducting the reaction in the absence of a polyhydric phenol and substantial quanti-ties of an organic solvent and in the presence of a catalytic quantity of a catalyst comprising (1) at least one dicarboxylic acid and (2) at least one phos-phonium compound wherein the molar ratio of (1) to (2) is from 1:1 to 20:1.        Hydrolyzed epoxy resins produced by the process of this invention are useful in coating compositions.
Patent CA-1203151-A (CA)
Inventor: GREENE CARMINE M
IPC: G01N33/64
Filed: 1983-09-23
Granted: 1986-04-15
Abstract: ABSTRACT OF THE DISCLOSURE      A composition, device and method for preparing a ketone control solution are disclosed,.  The composi-tion comprises dimethylformamide and a Group I, II or III metal salt of a .beta.-keto acid ester.  The salt has the structure   in which R is lower alkyl of 1 to 6 carbon atoms, R' is an aliphatic or cyclic group having 1 to about 7 carbon atoms, M is a Group I, II or III metal ion and n is 1, 2 or 3.  A carrier matrix incorporated with the composition can be affixed to a support member to form the device.  Preferably, a hydrolyzing agent is included on the device in the same or another carrier matrix.  The method for preparing the control solution comprises contacting a predetermined volume of an aqueous solution with the device for a predetermined time.
Patent CA-1206577-A (CA)
Inventor: BOEGLI PETER
IPC: B61L25/02
Filed: 1983-10-13
Granted: 1986-06-24
Abstract: INVENTORS:  PETER BOEGLI and ULRICH HEIZ            INVENTION:  APPARATUS FOR CONTROLLING AND FOR SIGNAL             TRANSMISSION IN CONVEYOR INSTALLATIONS                 ABSTRACT OF THE DISCLOSURE             Transponders are arranged at control locations associated with sections of a track or travel path.  Each transponder is in wireless communication through an inductive transmission path and an optical transmission path with a conveyor present in the operable range of the transponder.          Each transponder is in communication with a central system control via an associated group control unit by means of two-wire lines or conductors.  The operational mode of each transponder is controllable by means of a multiplexer such that the transponder operates either as a responder or answering device with simultaneous unidirectional signal transfer and which responder is to be interrogated by a conveyor or as a bidirectional signal transmitter.  The apparatus selectively functions as a location or site code transmitter and presence indicator for the individual conveyors or as bidirectional data transmitter with isolated directions between the conveyors and the central system control.  Due to such dual utilization only one type of layout element is required, resulting in a high reduction in the installation expense and its maintenance.  The apparatus is intended for the modular erection of conveyor installations of different sizes and output and is equally well suited for partially autonomous as well as for central control of the conveyors.
Patent CA-1234949-A (CA)
Inventor: DE KONING ADRIANUS J
IPC: C07D307/34
Filed: 1983-11-04
Granted: 1988-04-05
Abstract: ABSTRACT     The invention relates to thermosetting compositions con-sisting of a homogeneous mixture of an ethylenically unsaturated compound, a bismaleimide compound or a bismaleimide containing com-position and an acid compound, with optionally further copolymeriza-ble compounds and usual additives.  It is found that in the presence of an acid, particularly a polymerizable acid, the bismaleimides and bismaleimide containing compositions are better soluble in styrene.          The cured products have a good chemical resistance, a high maximum processing temperature and a low combustibility.
Patent CA-1243440-A (CA)
Inventor: MARESCA LOUIS M
IPC: C08G73/10
Filed: 1984-02-17
Granted: 1988-10-18
Abstract: IMPROVED PROCESS FOR TREATING THERMOPLASTIC          POLYMER               ABSTRACT OF THE DISCLOSUE    Described is a process for improving the color of thermoplastic polymers by contacting the polymer with a peracid, hydrogen peroxide or other peroxygen compound.     S P E C I F I C A T I O N
Patent CA-1212015-A (CA)
Inventor: SYBERTZ HANS
IPC: B27L1/00
Filed: 1984-02-24
Granted: 1986-09-30
Abstract: ABSTRACT OF THE DISCLOSURE          For milling root butts on round timber, a trunk is clamped at a predetermined location and non-rotatable, a milling shaft with a milling tool is brought into abutment against the trunk, the milling tool mills in the trunk butt in the abutment region to a predetermined radial depth, then by a rotary device it is moved around the trunk and mills the root butt over the entire trunk periphery with controlling of the respective radial depth of the milling shaft by a sensor arranged to sense the outer surface of the trunk.
Patent CA-1202005-A (CA)
Inventor: AVERY CARL F
IPC: A61B10/00
Filed: 1984-03-27
Granted: 1986-03-18
Abstract: Abstract of the Disclosure A culture collecting swab and a sealed glass ampoule packaged end to end in an envelope and initially are held in an assembled condition by a resiliently yieldable closure member which is carried on the end of the stems of the swab and which includes a cup portion snugly telescoped on one end portion of the ampoule. After a culture has been collected on the tip of the swab, the ampoule is broken open along a score line inside the cup portion of the closure member, the end portion broken off the ampoule being retained in the cup portion. The tip and end of the swab are then inserted into the ampoule through the open end thereof to immerse the tip in a culture-sustaining media and, as an incident to this, a plug portion on the closure member enters and closes the open end of the ampoule.
Patent CA-1212749-A (CA)
Inventor: TADA KUNIO
IPC: G02F1/015
Filed: 1984-03-30
Granted: 1986-10-14
Abstract: LIGHT MODULATION DEVICE          Abstract of the Disclosure:        A light modulation device according to the present invention comprises a substrate, a substrate layer, an optical waveguide layer, and buffer layers, in the order from the bottom upward, are all formed of either n-type or p-type compound semiconductor crystal.  In this light modulation device, in order to capture the light in the optical waveguide layer, composition ratio of the compound semiconductor is so determined that refractive index is at least 0.1% higher in the optical waveguide layers than in the substrate layer and in the buffer layers.  Further, the carrier density is low in the optical waveguide layer and in the buffer layers so that the applied voltage is applied mainly to the optical waveguide layer.  Because of such construction, the light modulation device according to the present invention is free from strict conditions required in etching process, is small in absorption loss of light, and can be used as a component of monolithic optical integrated circuit.
Patent CA-1203910-A (CA)
Inventor: HIRANO AKIRA
IPC: H04N7/36
Filed: 1984-04-03
Granted: 1986-04-29
Abstract: Abstract of the Disclosure In method and apparatus for adaptive predictive encoding and decoding a multi-level television signal, an optimum prediction function of the present picture element time is predicted by taking into consideration the spatial distribution states of optimum prediction functions corresponding to previously encoded reference picture elements. In a modification for a motion-compensated interframe encoding and decoding method and apparatus the same principle is applied to a television picture including scene change and motions exceeding a detection range.  With these method and apparatus it is possible to improve the accuracy of prediction and prediction encoding efficiency.
Patent CA-1223723-A (CA)
Title: Installation pour la fusion de lingots de metal
Inventor: LEFEBVRE GUY
IPC: F27D3/02
Filed: 1984-04-04
Granted: 1987-07-07
Abstract: "Installation pour la fusion de lingots de métal" Installation pour la fusion de lingots de métal, caractérisée en ce qu'elle comporte un rail sur lequel sont susceptibles d'êtres suspendus, l'un derrière l'autre, plusieurs lingots de métal, le dit rail étant incliné vers la surface d'un bain, de façon que son extrémité inférieure soit située audessus de la surface du bain et de façon que les lingots glissent sur le rail par leur propre poids vers cette extrémité inférieure; caractérisée en ce qu'un moyen d'accrochage est commandé en déplacement de sa position haute vers sa position basse par le mécanisme et actionné par le flotteur, la dite installation étant capable de pourvoir à l'alimentation en continu de lingots de métal dans un four de fusion, et évite les accidents corporels.
Patent CA-1250413-A (CA)
Inventor: YOSHIOKA HIROSHI
IPC: B29C71/00
Filed: 1984-05-04
Granted: 1989-02-28
Abstract: METHOD AND APPARATUS FOR HEAT TREATING A HEAT-SHRINKABLE TAPE-LIKE OBJECT Abstract of the Disclosure A tape-like object such as a fastener tape the shrink-age curve of which is known traverses a plurality of rollers disposed within a heating unit.  In order for the tape to travel through the heating unit in a substantially tension-free state or under a prescribed tension, a suitable feed speed based upon the shrinkage curve is obtained.  The rollers are driven by drive means, responsive to commands from control means, in accordance with the feed speed in such a manner that each roller rotates at a speed different from the other rollers, or in such a manner that groups of the rollers each rotate at a speed which is different for each group.
Patent CA-1231799-A (CA)
Inventor: KIOKA MAMORU
IPC: C08F10/00
Filed: 1984-05-07
Granted: 1988-01-19
Abstract: A B S T R A C T     In a process for producing a polymer or copolymer of an olefin which comprises polymerizing or copolymerizing at least one olefin with or without up to about 5 mole% of a diolefin in the presence of a catalyst composed of [a]  a solid titanium catalyst component contain-ing magnesium, titanium, halogen and an electron donor, which is a reaction product of (iv) a titanium compound in the liquid state and a magnesium-containing solid carrier, said magnesium-containing solid carrier being formed by contacting (1) a magnesium compound in the liquid state not containing a titanium compound with (ii) a precipitant other than a titanium compound in the presence of or absence of (iii) an electron donor, said reaction product being formed by contacting the titanium compound (iv) in the liquid state and the magnesium-containing solid carrier, pre-treated or not pre-treated with the electron donor (iii), in the presence or absence of the electron donor (iii), the electron donor (iii) being used at least once throughout the period of formation of the magnesium-containing solid carrier and the formation of the reaction product, and [b]  an organometallic compound of a metal selected from the group consisting of metals of Groups I to III of the periodic table; the improvement wherein said catalyst is composed of [A]  a solid titanium catalyst component of [a] in which the electron donor (iii) is an ester selected from the group consisting of polycarboxylic acid esters and polyhydroxy compound esters, [B]  the organometallic compound [b], and [C]  an organosilicon compound having an Si-O-C or Si-N-C bond in its molecule.
Patent CA-1245898-A (CA)
Inventor: SPENCER GORDON R
IPC: G02B27/10
Filed: 1984-06-27
Granted: 1988-12-06
Abstract: Abstract of the Disclosure An optical system including a symmetrical beamsplitter comprised of a semi-transparent film of light reflective material sandwiched between two optical plates of transparent materials having respective thicknesses and indices of refraction suitable for providing equivalent-optical paths on either side of the film.  The beamsplitter may be positioned in optical alignment with an image source and oriented to have one of its surfaces at an angle to said source.  Thus, a light ray emanating from the source will have a fractional component transmitted through the film along one optical path and a fractional component will be reflected from the film along an equivalent optical path disposed at an angle to said one optical path.  Also, the beamsplitter may be located symmetrically between two image sources such that the light rays emanating from one source and reflected by the beamsplitter together with corresponding light rays emanating from the other source and transmitted by the beamsplitter combine and travel common paths from the beam-splitter film.  As a result, an observer's eye or any similar focusing system may be positioned over a relatively large range of viewing angles to receive said combined light rays and produce a composite image.
Patent CA-1238320-A (CA)
Inventor: DORGAN RODERICK J
IPC: C07D487/04
Filed: 1984-07-13
Granted: 1988-06-21
Abstract: Abstract A compound of formula (I):       (I) in which R is optionally substituted phenyl; C3-8 cycloalkyl; C5-8 cycloalkenyl; C1-8 alkyl which may be straight or branched;C2-8 alkenyl which may be straight or branched: 5- or 6- membered heterocyclyl; or optionally sustituted phenyl C1-4 alkyl, each of Y and Z, which may be the same or different, is oxygen or sulphur; and X is -CH2- or oxygen, a process for the preparation of such compounds and their use in human and veterinary medicine.  The compounds of the invention have useful anthelmintic activity, particularly against tapeworm.
Patent CA-1230156-A (CA)
Inventor: KUENZLI ALBERT
IPC: F22B1/30
Filed: 1984-08-24
Granted: 1987-12-08
Abstract: ABSTRACT OF THE DISCLOSURE       An electrical steam generator is disclosed which contains a pressure vessel (2) within which are arranged on each of vertical axes for trays (4, 5, 6, 5') one above the other.  The trays of each axes are ultimately electrically connected with a source of power such that one tray is isolated from the wall of the pressure vessel and is connected with a source of power while the next tray in the series is connected to the wall of the pressure vessel.          By means of a pump (20), water is pumped from a sump (19) of the pressure vessel (2) into the uppermost tray.  The water then flows in the fashion of a water film past an overflow edge (7, 8, 9, 8') from the respective uppermost tray to the lower tray.  Each tray contains at least one flat, horizontally arranged damping element (30, 31, 32) which is maintained in contact with water.          Upstream of the overflow edge of each ray is disposed a generally vertical, water and steam-permeable damping wall (40, 41, 42).  The damping wall begins underneath the over-flow edge and terminates above the overflow edge.  Besides, downstream of the overflow edge of each tray is provided a water impermeable shield wall (50, 51, 52) which commences below the overflow edge and ends above the overflow edge.          Between the shield wall and the associated tray is provided a slot which - measured in horizontal direction - is wider than the greatest expected thickness of the water film flowing from the tray.  The invention enables the increase in the thickness of the water film at the same time limiting the occurance of splashing around of water.
Patent CA-1228203-A (CA)
Inventor: REICHART BRUNO
IPC: A61F2/24
Filed: 1984-09-21
Granted: 1987-10-20
Abstract: ABSTRACT OF THE DISCLOSURE           A heart valve prosthesis has a supporting frame with a circular cross-section, which is covered with a dacron fabric.  On one end face, the dacron fabric is arranged to form a suture ring.  The fixed aortic valve of a kangaroo is attached inside the frame and sutured to the dacron? fabric.
Patent CA-1213127-A (CA)
Inventor: HOEKSTRA I ARTHUR
IPC: F24H8/00
Filed: 1984-10-22
Granted: 1986-10-28
Abstract: Energy and Water Recovery from Flue Gases ABSTRACT OF THE DISCLOSURE    Energy  and  water  are recovered from  flue  gases  by cooling  them  to a temperature sufficiently below the  acid dew  point temperature by contact with an aqueous stream  so as to recover the sensible heat and to reduce the water con-tent of the flue gases by about 50%. The water by  which the aqueous  stream  is enriched is subsequently flashed off  to cool  the  stream back to its original temperature  and  the water  vapor  is then compressed to generate a  higher  tem-perature   vapor  stream which is condensed to  recover  the water and extract heat.  The aqueous stream is  continuously enriched  with material such as calcium carbonate to control the pH sufficiently as to avoid substantial corrosion due to acidic  gases  removed from the flue gases and  the  aqueous stream  is  purged continuously or  periodically  to  remove compounds such as chlorides, calcium sulphates,  and fly ash solids  picked  up from the flue gases.  The system  may  be operated  in  two stage fashion in  which  separate  aqueous streams  are  employed to cool the flue gases in two  serial stages.
Patent CA-1252016-A (CA)
Inventor: CAWIEZEL KAY E
IPC: C09K23/42
Filed: 1985-01-04
Granted: 1989-04-04
Abstract: ABSTRACT OF THE DISCLOSURE           Nonionic surfactants based upon low molecular weight block copolymers of ethylene oxide and butylene oxide are particularly useful as low foaming dewatering aids in the processing (e.g., filtering, drying, etc.) of various mineral concentrates.  Such surfactants are especially beneficial in that they exhibit a substantially reduced propensity to build up or accumulate in recirculating plant water.  As result, such surfactants are particularly well suited for use in mineral processing facilities which are not equipped with the capability to treat recirculating plant water for the removal of excess surfactant accumulation therein.
Patent CA-1249771-A (CA)
Inventor: JONES DALE G
IPC: B01D47/08
Filed: 1985-01-09
Granted: 1989-02-07
Abstract: METHOD AND DEVICE FOR CLEANING PARTICULATE-LADEN GASES            ABSTRACT OF THE DISCLOSURE An improved rotary spray scrubber of the type including an elongate gas flow duct and a rotary dispersion hub is described.  The improvement comprises maintaining the ratio of the hub diameter to the duct diameter in the range from about 0.55 to 0.75.  The improved rotary scrubber is particularly effective at removing submicron particulates from a gas stream, with removals well above 90% being feasible.
Patent CA-1227748-A (CA)
Inventor: HIRASUNA ALAN R
IPC: E21B33/12
Filed: 1985-01-31
Granted: 1987-10-06
Abstract: CASING PACKER Abstract of the Invention A  well  casing  packer  includes  a  seal  mechanism, mounted on a mandrel.  The casing packer comprises a seal element and a wedge member for driving the seal element radially outward against a well casing by applying radial forces  to  the seal element.   This wedge member and a support member support the seal element to maintain the radial forces on the seal element, and the support member and  the wedge member are constrained to move together during the driving of the seal element against the well casing.  The casing packer also includes a mechanism for releasing the radial forces on the seal element, which comprises a member for releasing the constraint between the wedge and support members to allow these members to be longitudinally driven relative to one another to remove the support on the seal element by the wedge member, and thereby release the radial forces on the seal.
Patent CA-1231407-A (CA)
Inventor: DECHAMP DAVID W
IPC: H01R24/40
Filed: 1985-02-11
Granted: 1988-01-12
Abstract: COAXIAL CONNECTOR                  ABSTRACT OF THE DISCLOSURE     A coaxial connector having precise matched im-pedance characteristics which is suitable for use with coaxial cable having a very soft dielectric core.  A slotted bushing is fit over the core of the cable.  The bushing is inserted into the rear of the coaxial contact assembly.  A flange on the front of the bushing snaps into a recess in the wall of the coaxial contact assembly to provide a positive interlock and establish an optimum electrical path in the outer conductor circuit for high frequency performance.  A sleeve is crimped down around the outer conductor of the cable which is laid over an exposed, rigid rear portion of the bushing and the rear of the coaxial contact assembly, neither of which is deformed during the crimping operation.
Patent CA-1238382-A (CA)
Inventor: MOGAVERO BRUNO CARLO
IPC: H04B3/23
Filed: 1985-03-25
Granted: 1988-06-21
Abstract: ABSTRACT            A system is provided which allows simultaneous interchange of digital information between exchange and subscribers on a common transmission line.  Data streams are transmitted as packets separated by short silent intervals within which clock signals are extracted and echo canceller adjustment is carried out.  Use of an adaptive equalizer and a single sampling operation per sampling period are possible.
Patent CA-1230502-A (CA)
Inventor: KRAMER ROBERT A
IPC: G01F7/00
Filed: 1985-04-19
Granted: 1987-12-22
Abstract: ABSTRACT OF THE DISCLOSURE            A method of accurately measuring volume of gas flowing through a conduit as a result of differential pressure of the gas within the conduit is disclosed.  The method comprises determining flow of the gas through the conduit, and terminating flow of the gas through the conduit when the differential pressure is a preselected value.  The gas flow and the resulting determination of gas volume are preferably referenced to standard temperature and pressure.  Also disclosed is an apparatus for effecting the method.
Patent CA-1262241-A (CA)
Title: Painting apparatus
Inventor: STERN DONALD J
IPC: B05C17/03
Filed: 1985-05-24
Granted: 1989-10-10
Abstract: Abstract A painting system having a supply section, a delivery and control section, and an applicator section.          The supply section comprises a peristaltic type pump.          The delivery and control section comprises a unitary tube having a delivery passageway and an air pressurizing passageway.  A pressurizing control switch at the location of the applicator acts through the air passageway to control operation of the pump.  The applicator section has a housing which provides a uniform pattern of distribution passageways for uniform application of paint.
Patent CA-1271609-A (CA)
Inventor: HAZELTON DONALD R
IPC: C08L23/08
Filed: 1985-05-28
Granted: 1990-07-17
Abstract: ABSTRACT OF THE DISCLOSURE          An elastomer/polyolefin film of improved clarity is prepared by  passing  an  elastomer/polyolefin  melt  through  counterrotating rollers, one of which is a high gloss rubber roller for imparting a relatively high gloss to the film surface in contact therewith.
Patent CA-1234304-A (CA)
Inventor: MUELLER OTMAR
IPC: C06B21/00
Filed: 1985-05-31
Granted: 1988-03-22
Abstract: Abstract of the Disclosure For filling projectile shells of gun ammunition a method is proposed in which gaps between the explosive and the bottom of the projectile shell are avoided.  On the whole, the wall adhesion of the explosive to the projectile body is so great that during mechanical elimination of the explosive from the projectile shell the explosive tears within its structure.  This is achieved by using an adhesive having a portion of binder resin not hardening in oxygen applied to the pretreated or untreated wall of the pro-jectile shell and only after complete drying of the adhesive does it come into contact with a melted liquid explosive.  The melted liquid explosive solvates the adhesive, whereby an intimate adhesion of the resolidified phases is achieved.