baber/WOPTO huggingface dataset:
Patent CA-2045272-A1 (CA)
Title: Process for improving the surface of liquid crystal polymers
Inventor: ADCOCK DAVID F
IPC: H05K3/38
Filed: 1991-06-21
Abstract: Surfaces of articles molded from unfilled or lightly filled liquid crystal polymers have a tendency to peel away when subjected to even slight rubbing.      Such surfaces are improved by subjecting them to abrasion to remove at least 0.01 mm of surface thickness, whereby they acquire a smooth matte finish and are no longer susceptible to peeling.
Patent CA-2046521-A1 (CA)
Title: Guide sleeve, guide post and ball bearing assembly with roller plug
Inventor: HANAWAY RONALD L
IPC: F16C29/04
Filed: 1991-07-09
Abstract: GUIDE SLEEVE, GUIDE POST AND BALL BEARING ASSEMBLY WITH ROLLER PLUG                           ABSTRACT       In combination, a guide post having a longitudinal slot and a bearing cage adjustably receiving the post and adapted for relative longitudinal and rotary movements, there bearing an internal annular recess in said cage inwardly of one end.  A truncated roller bearing with opposed hemispherical surfaces and opposed flat sides is guidably positioned within the slot with the roller bearing maintaining a rolling point contact with the bottom wall of the slot and with the roller flat sides loosely and slidably registerable with the side walls of the slot.  One of the hemispherical surfaces of the bearing being positioned and retained within an internal annular recess within the ball cage.  There being a transverse arcuate slot through the cage in registry with its annular recess and an arcuate recess forming a continuation of the cage recess.  A set screw in the cage retainingly engaged the pull plug.
Patent CA-2049957-A1 (CA)
Title: Method for cleaning flue gas formed on refuse incineration
Inventor: CARLSSON KURT
IPC: B01D53/34
Filed: 1990-04-02
Abstract: For cleaning flue gas formed on the incineration of refuse, for example domestic refuse, and containing particulate impurities;  gaseous organic impurities, such as aromatic chlorine compounds;  gaseous inorganic and acidifying impurities, e.g. hydrogen chloride, sulphur dioxide, and nitrogen oxides; and gaseous trace elements, such as heavy metals, the gas is cleaned of its particulate impurities in a separation step (52). Then, the flue gas is cleaned of its gaseous inorganic and acidifying impurities in at least one gas washing step (54a, 54b). Before the separation step (52), the flue gas is brought into contact with one or more substances reacting with the gaseous trace elements and supplied in the form of a dry powder or fine liquid droplets, and/or an adsorption material reacting with the gaseous organic impurities, for transforming the trace elements and the last-mentioned impurities into particulate impurities which are separated from the flue gas in the above-mentioned separation step. The particulate impurities separated in the separation step (2; 22; 52) are heated to such a high temperature that substantially all the organic impurities are decomposed, and that most of the trace elements are evaporated, while the remaining particulate impurities are transformed into vitreous sand by melting.
Patent CA-2051097-A1 (CA)
Title: Ion flotatin with quaternary ammonium cationic surfactants
Inventor: ENGEL MALCOLM D
IPC: C22B3/44
Filed: 1990-04-03
Abstract: ABSTRACT OF THE DISCLOSURE        A method for ion flotation, especially in the extraction of gold uses as the flotation reagent a cationic surfactant of formula(I), wherein R1 is a C10-C18 alkyl group, R3is a lower alkyl group, or benzene ring optionally substituted with one or more lower alkyl groups and  R2 and R4 are lower alkyl groups; or R1, R2 and R4 are methyl groups; R  is a benzene ring substituted with a C10-C18 alkoxy group; and X is a halogen atom.
Patent CA-2052800-A1 (CA)
Inventor: NAGL GERT
IPC: C07C319/20
Filed: 1991-10-04
Abstract: The present invention relates to novel compounds of the general formula I (see formula I) wherein A~ and B~ independently of one another denote a proton, with the limitation that they do not both simultaneously denote protons, the equivalent part of the barium ion, an ion of the general formula II (see formula II) or an ion of the general formula III (see formula III) wherein X represents N, P, As or Sb, R11, R12, R13 and R14 represent, for example (C1-C30)-alkyl, R15 and R16 represent, for example, hydrogen or (C1-C6)-alkyl and wherein R1 to R8 denote, for example, hydrogen or (C1-C30)-alkyl. The compounds are useful as charge control agents in toners and developers and as charge improving agents in powders and varnishes.
Patent CA-2054071-A1 (CA)
Title: Electrically powered hand held hair curling appliance
Inventor: MCDOUGALL GREGORY J
IPC: A45D20/50
Filed: 1991-10-23
Abstract: The invention relates to electrically powered hand held hair curling appliances of the type comprising a barrel (2) for delivering warm air to the hair, the barrel (2) being of adjustable diameter to allow curls of different diameter to be formed. The barrel (2) consists of a number of barrel elements (3) which can be moved radially outwardly or radially inwardly to expand or contract the barrel, the elements (3) overlapping one another when contracted but always allowing unobstructed air flow from the interior of the barrel (2) out through apertures (3d) to the hair.
Patent CA-2055819-A1 (CA)
Title: Copper smelting process
Inventor: KIKUMOTO NOBUO
IPC: C22B15/00
Filed: 1991-11-19
Abstract: ABSTRACT OF THE DISCLOSURE      A copper smelting process is disclosed in which copper concentrate is smelted in a furnace to produce purified copper.          Flue gas discharged from the furnace is treated to produce sul-furic acid.   Furthermore, waste liquid discharged during the production of sulfuric acid is treated to produce gypsum, and the gypsum thus produced is recycled to the furnace as a flux.  The flue gas may be exhausted from either or both of a smelting furnace and a converting furnace, and the gypsum may be prefera-bly introduced into the converting furnace.
Patent CA-2056620-A1 (CA)
Inventor: HODEN EBBE
IPC: A61F13/20
Filed: 1990-05-10
Abstract: A tampon comprises a compacted tampon blank, which in turn is formed by winding a liquid-permeable strip (23) and a string (20) of absorbent material placed thereon to a roll and inserting strip-parts (30, 31) which project from the sides of the string, inwardly of the innermost turn or winding of the roll. In the process of manufacturing the tampon, the strip (23) carrying the string can be wound around a first, tubular mandrel (26), and one strip-part (30) can be inserted into the mandrel through one open mandrel-end located adjacent the inner edge of the strip-part. A second tubular mandrel (32) is then inserted through the open end of the first mandrel and the first mandrel then withdrawn. With the second mandrel surrounded by the first, inserted strip-part (30) and located with an open end adjacent the inner edge of the other strip-part (31), the other strip-part is inserted in-to the second mandrel (32), which is then withdrawn from the thus formed tampon blank, which is thereafter compacted or com-pressed.
Patent CA-2065239-A1 (CA)
Title: Power booster
Inventor: MORICE LUCIEN JULIEN JOSEPH MA
IPC: F15B3/00
Filed: 1990-07-05
Abstract: Power booster comprising a hydraulic jack with thrust-reversing device, loacted between a driving force and a resistive element. The power booster consists of cylinders (1) mounted in pairs by means of a yoke (9) rotating on a shaft (10) and containing oil between two mutually opposed pistons (5, 3). The left hand piston which is machined as a ring (3) has a piston rod in the form of a tube (4) provided with a piston (8) which, by exerting pressure, produces opposite pressure forces on the other two pistons. An attachment system (12) screwed to the tube (4) conveys, with reversal, the negative power of the ring to the forward attachment system (13) by means of levers (14, 15) engaging the yoke (18). The sum of the pressure forces boosts the engine power. The tube piston is operated by a driving rocker arm attached to an engine-driven pulley (21, 22) (21). The attachment system and the right hand piston operate a rocker arm (23) keyed to the shaft by means of a cotter pin (24) which causes the resistive element to rotate. Flanges (27) ensure a constant separation between the yokes (18) and the last mentioned rocker arm.
Patent CA-2065449-A1 (CA)
Title: Ear piece having disposable, compressible polymeric foam sleeve
Inventor: OLIVERIA ROBERT J
IPC: H04R25/00
Filed: 1990-09-20
Abstract: Disposably attached to the ear piece of a hearing aid; which includes any sound transmission device, is a user-disposable slave (100 or 115) comprising soft polymeric retarded recovery foam that can be compressed to be freely insertable into a person's ear and allowed to recover to become wedged in the canal. Preferably, the sleeve is disposably attached to the ear piece by mating of screw threads on the sleeve (83) and the ear piece (108). The ear piece may be a separate component (80) from the hearing aid. The component (80) is made either of rigid or flexible plastic and has connecting portions (82 or 92) of various lengths depending on the depth of insertion of the sleeve into the canal. The sleeve (100) may be of various lengths depending on the depth of insertion into the ear canal desired. The sleeve/ear piece assembly may also have a layer of sound transmitting scrim (116) over its central opening to minimize penetration of the connecting portion past the end of the sleeve.
Patent CA-2065679-A1 (CA)
Title: Shroud cooling assembly for gas turbine engine
Inventor: PROCTOR ROBERT
IPC: F01D11/08
Filed: 1992-04-09
Abstract: To cool the shroud in the high pressure turbine section of a gas turbine engine, high pressure cooling air is directed in metered flow to baffle plenums and thence through baffle perforations to impingement cool the shroud rails and back surface. Impingement cooling air then flows through elongated, convection cooling passages in the shroud and exits to flow along the shroud front surface with the main gas stream to provide film cooling. The baffle perforations and the convection cooling passages are interactively located to achieve maximum cooling benefit and highly efficient cooling air utilization.
Patent CA-2067288-A1 (CA)
Title: Sulfonamides and their medical use
Inventor: BURRI KASPAR
IPC: C07D239/48
Filed: 1992-04-27
Abstract: Abstract Sulphonamides of formula I, in which the symbols R1-R6, X, Y and n have the significance given in the description and which are in part novel compounds, and salts thereof can be used as active ingredients for the manufacture of medicaments for the treatment of circulatory disorders, especially hypertension, ischemia, vasospasms and angina pectoris.
Patent CA-2068087-A1 (CA)
Inventor: ELLIOTT D BRUCE
IPC: A01G23/091
Filed: 1992-05-06
Abstract: An articulated two-boom support for a disc saw felling head. A first of the booms is pivotally connected to a base of a logging vehicle. The second boom is pivotally connected to the first boom at a pivotal joint and the booms are further joined to each other by a knuckle joint located below the pivotal joint connecting the booms. The knuckle joint includes two links pivotally connected to each other.      The link connected to the first boom is also connected to the base by a lacking hydraulic cylinder. An actuating hydraulic cylinder is linked to the first boom and base so as to rotate the first boom about the axis of its pivotal connection to the base. The arrangement is such that the disc saw felling head, mounted at the free end of the second boom, moves in a direction suitable for cutting a tree as the actuating cylinder is extended. The height of the disc felling head may be adjusted by altering the extended length of the locking hydraulic cylinder.
Patent CA-2072408-A1 (CA)
Inventor: WU DUEN S
IPC: A01K11/00
Filed: 1992-06-25
Abstract: TITLE: A BRANDING DEVICE FOR CATTLE            ABSTRACT OF THE DISCLOSURE    This invention relates to a branding device for cattle and in particular to one including a rectangular frame divided into a plurality of chambers formed on an upper edge with two lugs, a spring mounted on the two lugs of each chamber, two belts connected with the rectangular frame and moulds adapted to be received in the chamber of the rectangular frame, thereby making it easier, quicker and safer to brand cattle.
Patent CA-2074325-A1 (CA)
Title: Recovery apparatus
Inventor: HINES DAVID W
IPC: E02B15/04
Filed: 1992-07-21
Abstract: A B S T R A C T     A conveyor is mounted on a watercraft where the belt is a mesh with apertures of selected size, and has upper and lower flights.  There is an inboard extent of such flights above the water level and an outboard extent sloping downwardly so that an outer end of the belt is immersed.          For oil recovery steam jets over the inboard extent clean the mesh. For algae, seaweed or the like dams on the conveyor deposit these at the inboard reversal of the conveyor.
Patent CA-2075779-A1 (CA)
Title: Processing of powder
Inventor: AGUNLOYE FRANCIS F
IPC: B29B7/88
Filed: 1992-08-13
Abstract: A method and apparatus are provided for introducing a flammable powder such as red phosphorus into a hot melt such as an extrudable polymer which is in motion at the point of introduction of the flammable powder.
Patent CA-2079033-A1 (CA)
Title: Electroplating means for perforated printed circuit boards to be treated in a horizontal pass
Inventor: HOSTEN DANIEL
IPC: H05K3/18
Filed: 1992-09-24
Abstract: ABSTRACT OF THE DISCLOSURE    An electroplating apparatus having a plurality of upper electrolyte feeder elements and upper electrolyte discharge elements aligned transversely relative to a throughput path of the printed circuit boards and arranged in alternation above the throughput path, a plurality of lower electrolyte feeder elements and lower electrolyte discharge elements aligned transversely relative to the throughput path and arranged in alternation under the throughput path, wherein each lower electrolyte discharge element is positioned opposite an upper electrolyte feeder element and each upper electrolyte discharge elements is positioned opposite a lower electrolyte feeder element, and wherein vertical and horizontal flow components of the electrolyte solution result and their direction alternatingly changes as seen along the throughput path of the printed circuit boards.
Patent CA-2079994-A1 (CA)
Title: Wiping device of an intaglio printing machine
Inventor: SCHAEDE JOHANNES G
IPC: B41F31/20
Filed: 1992-10-06
Abstract: The wiping device operates with at least one cylinder (3) which receives the ink raised from the printing plates and against which rests a doctor blade (4) which removes the ink from said cylinder (3). In order to clean the doctor blade (4) reliably from ink during the printing operation, there are mounted on the opposite longitudinal edges of said doctor blade (4) wall parts (6) which are U-shaped in the plan view and whose U-limbs (6a) axe directed towards one another. Between said U-limbs (6a), an ink slide (8) is moved constantly back and forth on the doctor blade surface by a drive device, the side parts of said ink slide facing the wall parts being adapted to the design of said wall parts. Installed on the back of the doctor blade (4) on each side is an ink pump whose slot-shaped inlet opening (12) extends between the U-limbs of the relevant wall part (6). The ink slide (8) which is moved back and forth acts like a displacement body and pushes the ink passing onto the doctor blade alternately into the inside space bounded by the one or by the other wall part (6), where it is conveyed away by the ink pump and fed to a container.
Patent CA-2081512-A1 (CA)
Title: Stable preparation of reactive dyestuffs
Inventor: MICHNA MARTIN
IPC: C09B67/24
Filed: 1992-10-27
Abstract: A b s t r a c t The storage life of reactive dyestuff preparations is extended by pyrophosphoric acid or water-soluble salts thereof.     Le A 28 631-Foreign countries
Patent CA-2082552-A1 (CA)
Title: Process for the preparation of carbacyclic nucleosides, and intermediates
Inventor: MOSER HEINZ
IPC: C07D473/02
Filed: 1992-11-10
Abstract: Process for the preparation of carbacyclic nucleosides, and intermediates ABSTRACT   Process for the preparation of racemic compounds of the formula I                                (I), or enantiomers thereof, in which B is the radical of a nucleic base from the series comprising purine, a purine analogue or a pyridine analogue, and R is H or a protective group R1, by reacting a) a compound of the formula II or enantiomer thereof                (II), with a compound of the formulae X-CO-X, X-CS-X, X-SO-X, X-SO2-X, R2-NCO, R3R4N-C(O)-R5, X2P-R6 or X2P(O)-R6, in which X is a leaving group, R2 is, for example, C1-C18alkyl, R3 and R4 are, for example, H or C1-C18alkyl, R5 is, for example, H or C1-C12alkyl, and R6 is, for example, C1-C12alkyl or C1-C12alkoxy, to give a compound of the formula III or enantiomers thereof                 (III), in which Y is the groups -C(O)-, -C(S)-, -SO-, -SO2-, R2NH-CH=, R3R4N-CR5=, R6P=and R6(O)P=; b) the further reaction of the compounds of the formulae III or enantiomers thereof with a nucleic base B on its own or together with a non-nucleophilic base, or with an alkali metal salt of the nucleic base B, to give compounds of the formula IV or enantiomers thereof                 (IV), in which M is H, an alkali metal or a non-nucleophilic base, and c) the conversion of the compounds of the formulae IV into the compounds of the formulae I by elimination of the protective group R1 and of the group YOM. The reaction b) is regioselective and diastereoselective, and the compounds of the formula I are obtained in high yields and purities.
Patent CA-2083671-A1 (CA)
Inventor: ZAGDOUN GEORGES
IPC: C03C17/34
Filed: 1992-11-24
Abstract: Glass substrate provided with a low-emission, conductive, transparent functional layer based on metal oxide(s), on which an "outer" coating is deposited whose optical thickness is approximately one quarter of the average wavelength belonging to the visible range, and preferably centred on 550 nm. In addition, an "inner" coating is provided between functional layer and substrate, the said coating having an optical thickness of between 50 and 75 nm.
Patent CA-2084350-A1 (CA)
Inventor: REGAN PHILIP M
IPC: B05B11/02
Filed: 1992-12-02
Abstract: ABSTRACT                             DEVICE       The application describes a dispenser for manual discharge  of  a  single  dose  of  a  flowable  substance, comprising a casing (1) which has a nozzle (2) and a pair of shoulders (3) aside the nozzle.   The nozzle (2) has a piston  member  (5)  extending  inwardly  from  an  outlet opening  (9),  the  piston  member  having  at  least  one discharge channel.   A container (10) of the substance to be discharged is mounted on the piston member (5), and a seal (12) is arranged across the container (10) to seal in all the substances to be discharged.   The piston member  (5)  has  a  piercing member  (8)  which  extends towards the seal (12), whereby on pressing the container (10) on to the piston member (5) the seal (12) is pierced to  allow  the  contents  of  the  container  (10)  to  be expelled along the discharge channel and out through the outlet opening (9).
Patent CA-2084698-A1 (CA)
Title: Polyisocyanates containing ether and urethane groups, a process for their preparation and their use in the production of polyurethane lacquers
Inventor: SCHMALSTIEG LUTZ
IPC: C07C271/28
Filed: 1992-12-07
Abstract: Mo3816 LeA 28,776 POLYISOCYANATES CONTAINING ETHER AND URETHANE GROUPS, A PROCESS FOR THEIR PREPARATION AND THEIR USE IN THE          PRODUCTION OF POLYURETHANE LACQUERS     ABSTRACT OF THE DISCLOSURE    Polyisocyanates based on polyhydroxy polyethers and tolylene diisocyanate containing ether and urethane groups and having an isocyanate group content of from 11.8 to 14.4% by weight, an average isocyanate functionality of from 3.1 to 4.0 and a free tolylene diisocyanate content of less than 0.1% by weight are produced by reacting a polyhydroxy polyether having a molecular weight in the range of from about 350 to about 500 with excess quantities of tolylene diisocyanate and subsequently distilling the mixture to remove unreacted excess of the starting diisocyanate.  These polyisocyanates are particularly useful in the production of polyurethane lacquers Mo3816
Patent CA-2085626-A1 (CA)
Inventor: ROBERTS JOHN L
IPC: F16K35/06
Filed: 1992-12-17
Abstract: A rotatable control device including a body housing a control structure and having an external boss; a control shaft journalled in the boss for rotation about an axis and having an internal portion connected to the control structure and an external portion extending outwardly from the boss; an operating handle having an inner end portion connected to the external portion of the control shaft, a gripping end portion for rotating the control structure between first and second positions and an intermediate portion; first and second locking structure circumferentially spaced on the body at locations corresponding to the positions of the intermediate portion of the handle when the control structure is in the first and second positions, respectively; a slider member slidably mounted on the intermediate portion of the handle for reciprocative movement between locked and unlocked positions; interlocking structure for cooperating with the first and second locking structure, when the handle is in the first and second position, respectively, and the slider member is in the locking position, to restrain rotational movement of the handle; and bias structure for biasing the slider member toward the locked position irrespective of the orientation of the handle.
Patent CA-2087208-A1 (CA)
Title: Method and cargo tank arrangement for the prevention of detrimental discharges on grounding of tankers
IPC: B63B25/08
Filed: 1993-01-13
Abstract: FIELD OF THE INVENTION: The present invention relates to the field of cargo tanks arrangements and more specifically to a method and a cargo tank arrangement allowing for the reduction or prevention of the discharges resulting from grounding of tankers carrying ecologically harmful liquid such as hydrocarbons, acids or the like.
Patent CA-2090658-A1 (CA)
Title: Formulated medicine for treatment and/or prevention of opportunistic infectious diseases complicated by infection with lentivirus
Inventor: ANDO KUNIO
IPC: A23L1/305
Filed: 1993-03-01
Abstract: Abstract The protein class of the transferrin/lactoferrin family can be used both for treating and/or preventing opportunistic infections frequently complicating Immunodeficiency Virus positive animals including human beings.  The protein greatly improves the quality of life in such immunodeficiency virus infected animals.  The dosage of the protein class is usually 0.1-100 mg/kg daily, and preferably 0.5-50 mg/kg.
Patent CA-2091550-A1 (CA)
Title: New derivatives of physostigmine, their use and pharmaceutical formulations containing them
Inventor: BOMBARDELLI EZIO
IPC: C07D487/04
Filed: 1993-03-11
Abstract: ABSTRACT    NEW DERIVATIVES OF PHYSOSTIGMINE, THEIR USE AND PHARMACEUTICAL                  FORMULATIONS CONTAINING THEM         The therapeutic use of new salts of physostigmine in the treatment of syndromes related to changes in cerebral metabolism in the elderly is described.  The new salts of physostigmine, which are based on phosphatidic acid, are highly lipophilic and exhibit excellent bioavailability when administered orally, transcutaneously or transepidermally. The new salts are particularly valuable, when incorporated in plasters or appropriate gels or suitable pharmaceutical forms, for the treatment of senile dementia and Alzheimer's disease.