baber/WOPTO huggingface dataset:
Patent CA-2036767-A1 (CA)
Title: Catalyst and prepolymer used for polymerising olefins, and (co-) polymer of ethylene obtainable therefrom
Inventor: BAILLY JEAN-CLAUDE A
IPC: C08F4/646
Filed: 1991-02-20
Abstract: Case 7479(B214) (2) ABSTRACT OF DISCLOSURE            CATALYST AND PREPOLYMER USED FOR POLYMERISING OLEFINS, AND (CO-)POLYMER OF ETHYLENE OBTAINABLE THEREFROM      The present invention relates to a solid catalyst suitable for polymerising olefins in a heterogeneous process, the catalyst being obtainable by a process comprising in a first stage contacting an electron-donor D2 containing labile hydrogen, e.g. alcohol, with a spheroidal MgCl2 support containing an electron-donor D1 free from labile hydrogen, e.g. ether, and in a second stage contacting the resulting support with a zirconium metallocene, at least one titanium or vanadium halide and optionally with an organoaluminium compound, preferably an aluminoxane.  The solid catalyst may be used as such or in the form of a prepolymer in a polymerisation of olefins, the prepolymer being obtained by contacting the solid catalyst with ethylene or a mixture of ethylene with C3 to C8 alpha-olefin in the presence of an organo-aluminium compound, preferably an aluminoxane.  The solid catalysts and the prepolymer consist of spheroidal particles preferably having a narrow particle size distribution.
Patent CA-2037039-A1 (CA)
Title: Golf club and ball carrying case
Inventor: HICKIN RAYMOND
IPC: A63B55/20
Filed: 1991-02-25
Abstract: ABSTRACT OF THE DISCLOSURE     A combination golf club and golf ball carrying case adapted to carry a given number of golf clubs within an elongated rigid housing that defined the carrying case. The upper end of the housing is closed by a cover cap adapted to receive and support a plurality of tube members within the enlarged compartment defined by the housing, the cover cap and a base cap. Each tube member is arranged so as to receive a golf club therein in an upright position and to separate it from the others. Affixed to the housing wall is a golf-ball holding device which allows a number of golf balls to be readily available during the game. The cover cap is formed having a plurality of holes therein to receive the golf-club support tubes, and is also formed having a plurality of extended ear members in which golf tees are supported therein  The base cap is provided with a spike member whereby the carrying case can be supported in an upright position when the spike is inserted into the turf.
Patent CA-2038332-A1 (CA)
Title: Preparation of homopolymers and copolymers of monoethylenically unsaturated dicarboxylic acids and use thereof
Inventor: DENZINGER WALTER
IPC: C08F22/02
Filed: 1991-03-15
Abstract: - 29 -          O.Z. 0050/41484 Abstract of the Disclosure: Homopolymers and copolymers of monoethylenically unsaturated dicarboxylic acids of K 7 - 50 which are useful as additives in textile and dishwashing detergent compositions in amounts of from 0.1 to 15% by weight are obtained by free radical polymeriza-tion of (a)  monoethylenically unsaturated dicarboxylic acids, (b)  hydroxy-C2-C4-alkyl (meht)acrylates and optionally (c) other water-soluble monoethylenically unsaturated monomers at a degree of neutralization of the acid group-contain-ing monomers during the polymerization of from 52 to 70%, and contain not more than 1.5% by weight of unpolymerized dicarboxylic acid.
Patent CA-2038374-A1 (CA)
Inventor: WAGNER HARALD
IPC: E21D11/08
Filed: 1991-03-15
Abstract: Fixing means for connecting components, particularly prefabricated concrete members and tubbing stones, consist of pluglike anchors, which are adapted to be forced with elastic deformation into anchor holes, which are formed in said components and open to the joint between said components. As a result, the anchors are frictionally held in and/or positively locked in the anchor holes. The anchors are substantially stiff and have a peripheral surface which at least in portions intended for a rataining engagement with the inside surface of the anchor hole is designed to be elastically deformable at least in an approximately radial direction and at least in said portions consists of a plastic material, which has entropy elasticity, or of wood, which is so arranged that its fibers extend in the longitudinal direction of the anchor.
Patent CA-2038417-A1 (CA)
Title: Piperidine compounds, method for preparation thereof, and a pharmaceutical composition comprising the same
Inventor: ITO YASUO
IPC: C07D409/04
Filed: 1991-03-15
Abstract: ABSTRACT        Novel piperidine compounds represented by the following formula (I):                                                     (I) wherein Y represents an alkylene group having 1 to 7 carbon atoms; A is a group represented by formula I-a or formula I-b:                           (1-a)            (I-b) wherein X represents -CH,-S- or -S-; and R represents a hydrogen atom or a lower alkyl group with a proviso that A is a group represented by formula I-a, or R represents a hydrogen atom with a proviso that A is a group represented by formula I-b and pharmacologically acceptable salts thereof are disclosed.  Also disclosed are a method for preparing the same; a pharmaceutical composition comprising the same; an antiallergic agent and an agent for bronchial asthma comprising the same; and a method for treatment of an allergic disease or bronchial asthma comprising the step of administering the same.
Patent CA-2039059-A1 (CA)
Inventor: FERGESON ALLEN D
IPC: H04L7/00
Filed: 1991-03-26
Abstract: A node for use with asynchronous and synchronous communication networks to interconnect data systems with networks having transmission paths interconnecting network nodes. Apparatus interconnects pulse controlled components of the node with network transmission paths and synchronizes a flow of data incoming to and outgoing from the node on the network transmission paths within the node at an unsynchronized clock pulse rate independent of the data transfer rate on the transmission paths and independent of a master network clock.
Patent CA-2041897-A1 (CA)
Title: Amino protecting group
Inventor: WEIGEL LELAND O
IPC: C07D205/085
Filed: 1991-05-06
Abstract: Abstract A method for preparing a new class of protected amino intermediates is provided which utilizes reaction of an imido protected primary amine with a secondary amine. The intermediates thus provided are suitably protected for nucleophilic functionalization of the residue of the primary amine. The desired imido pro-tected amine thus derivatized may be regenerated using acid.  Further provided are methods for resolving racemic primary amines.  Also provided are .beta.-lactam intermediates protected with the new amino protecting group which are useful in the preparation of .beta.-lactam antibiotics.
Patent CA-2043156-A1 (CA)
Title: Crankshaft angular position detecting apparatus
Inventor: DAVIS MICHAEL A
IPC: F02D45/00
Filed: 1991-05-23
Abstract: A crankshaft angular position detecting apparatus for detecting the angular position of the crankshaft of an internal combustion engine.  The crankshaft drives a timing wheel which has a plurality of circumferentially spaced slots located along its outer periphery.  Two angularly spaced sensors are located adjacent the slots.  The sensors develop voltage pulses as the slots move past the sensors.  Two phase-displaced pulse trains are developed, one by each sensor, as the wheel rotates.  The pattern of slots and the angular spacing of the sensors is such that a varying number of pulses of one pulse train occurs between consecutively occurring pulses of the other pulse train.  The varying number of pulses provide different patterns and each pattern is indicative of a crankshaft position.  The timing wheel is secured to the engine crankshaft and is located inside of the engine.
Patent CA-2045018-A1 (CA)
Title: Biopsy forceps
Inventor: PICHA GEORGE J
IPC: A61B10/06
Filed: 1991-06-19
Abstract: BIOPSY FORCEPS                ABSTRACT OF THE DISCLOSURE            A pair of biopsy forceps for capturing, by remote operation, a sample of tissue from an internal location in a patient.   The device includes a flexible sheath with a control wire extending therethrough, a pair of jaws movable by the control wire to capture a sample of tissue,  and a manual operating means connected at the outer end of the sheath for extending and retracting the control wire.  The jaws are mounted at the ends of tongs pivotally mounted in an end housing for movement between open and closed posi-tions.  The control wire is connected to lever arms at the rearward end of the tongs by means of two cable lengths connected between the wire and the rearward ends of the lever arms in such a way as to form an effective extension of the respective lever arm.
Patent CA-2048840-A1 (CA)
Title: Rotatable circular sash window
Inventor: BOYLAN BASIL F
IPC: E06B3/34
Filed: 1991-08-08
Abstract: A B S T R A C T     This invention relates to a window that is opened and closed by rotating a frame with a circular perimeter within w round opening ow a main frame with this circular perimeter frame con-taining part glass and part open space and rotating it in its own plane relative to similarly shaped glass in a frame that is held stationary in the round opening.  It is preferable that the stationary glass also be in a frame with a circular perimeter with this frame held in position.     This invention allows round windows to be opened and closed in a practical manner. It also allows opening and closing of windows that have shapes such as quadrangular and octogonal in the closed and fully open positions.     The main frames may have round, square or rectangular perimeters. Those that are square or rectangular have a panel within the exterior members of the main frame and the round opening is made in the panel which will be referred to as the "web" of the main frame.     Presently, round windows are occasionally seen in houses, churches and commercial buildings.  They are oftentimes only a small percentage of the total quantity of windows when they are seen.  They are generally installed as fixed windows in such structures and they do not provide for ventilation or emergency exit, and cleaning the exterior can often be difficult.  This invention overcomes the disadvantages of fixed round windows and greatly enhanced the marketing opportunities for round windows and the other said shapes.     Rectangular windows are not wall shaped for motor operation or the installation of fans for forced ventilation.  The round windows of this invention are much more suitable for such mechanization.  These additional present further marketing opportu-nities.  The windows of this invention that have main frame with round perimeters have strength requirements for installations on ships where round windows have been common.
Patent CA-2049520-A1 (CA)
Title: Aluminum-lithium alloy having improved properties
Inventor: YOUDELIS WILLIAM V
IPC: C22C21/00
Filed: 1991-08-20
Abstract: Abstract Aluminum alloys exibiting improved properties such as tensile strength, ductility and toughness comprise 1.0 - 3.0% lithium, 1.0 - 3.5% copper, 0.1 - 3.0 % magnesium, 0.30 -0.90 % vanadium and/or 0.05 - 0.20 % beryllium, 0 - 0.30 % boron, and the balance aluminum.  The alloys may also contain up to 0.15 % zirconium.  They are particularly useful for aerospace and like metal parts.
Patent CA-2049848-A1 (CA)
Inventor: BLONDER GREG E
IPC: H01S5/00
Filed: 1991-08-26
Abstract: Distributed Bragg Reflectors of high efficacy based on alternating layers of large difference in refractive index are fabricated by epitaxial growth followed by etchant removal and back-filling to produce a structure in which alternation is between layers of retained epitaxially grown material and layers of back-filled material. Such reflectors may serve simply as mirrors or may be incorporated in a variety of devices including lasers, LEDs, detectors, optical switches in which the DBRs serve e.g. for cavitation.
Patent CA-2050305-A1 (CA)
Title: Sterically stabilized aqueous polymer dispersions
Inventor: TATAS RALF
IPC: C08F2/16
Filed: 1990-01-26
Abstract: ABSTRACT          Sterically stabilized aqueous polymer dispersions based on ethylenically unsaturated monomers polymerized by a free radical method and a graft polymer as protective colloid are made available by grafting the essentially hydrophobic  ethylenically unsaturated monomers  such  as alkyl esters of acrylic acid or methacrylic acid onto the essentially water-soluble or water-dispersible polymeric protective colloid precursor by a radical method using a graft  initiator,  and  then  polymerizing  ethylenically unsaturated monomers capable of free radical polymeriza-tion in an aqueous medium in the presence of the protec-tive colloid thus obtained by emulsion polymerization in the  presence  of  a  conventional  free  radical-forming initiator.  Protective colloid precursors preferably used are polysaccharides and polymers of ethylenically unsatu-rated monomers, such as polyvinylpyrrolidone and polyvinyl alcohol in particular.  The aqueous polymer dispersions, which can be processed even at room temperature, are suit-able as the base for paints or coatings.
Patent CA-2057382-A1 (CA)
Title: Process for the production of polypropylene
Inventor: REBHAN DAVID M
IPC: C08F10/00
Filed: 1991-12-11
Abstract: A process for improving polymer productivity and/or stereo-selective performance of MgCl2 supported Ziegler-Natta catalyst by employing cocatalysts comprising a mixture of (i) trialkylaluminium, (ii) C1-C6 alkyl ester of an aromatic mono- or dicarboxylic acid and (iii) a silane compound containing at least one alkoxy group and at least one alkyl group.
Patent CA-2058613-A1 (CA)
Title: Manual stump removal tool
Inventor: LACEY HERB L
IPC: A01G23/06
Filed: 1991-12-30
Abstract: MANUAL STUMP REMOVAL TOOL                      ABSTRACT OF DISCLOSURE The present invention relates to a tool for removing a stump from the earth. In particular, the tool includes an elongated rod that is provided with a plate structure about a cutting end of the tool. The plate structure includes a bevelled cutting edge that is effective to cut through soil, rocks and roots that would typically surround and underlie a stump. In use, the tool is driven with a maul or hammer at approximately a 45° angle so as to cut a conical shape chunk of soil from the earth with the stump and attached roots being held by the chunk of soil or dirt surrounding the same.
Patent CA-2059899-A1 (CA)
Title: Word game assembly
Inventor: LARMAN DARRYL S
IPC: A63F9/16
Filed: 1992-01-23
Abstract: Abstract of the Disclosure A word game assembly for play by two or more players includes for each player a play grid of horizontal and vertical rows of adjacent areas and a supply of alphabetical letter designating play pieces receivable on the grid areas in a competitive attempt to form words.  A player operated random selector and indicator device, such as a spinnable top having side facets marked with different symbols, is used to determine the nature and procedure of play for effecting a series of plays.  For instance, each player may select play pieces and place them on an associated play grid to form words in dependence upon the indicated random selection resulting from a spin of the top.  In one embodiment of the word game assembly, a portion of the play grid is rotatable.
Patent CA-2061776-A1 (CA)
Inventor: GAZZARRINI VINICIO
IPC: A41B11/14
Filed: 1992-02-25
Abstract: Abstract of the invention with main design, description and claims. Application number:            Date of Filing: Patent number:    Date of Issue:            Title of Design: "Method for varying the curvature of the toe seam in hosiery with a sewing machine and a device for carrying out said method."            Abstract To vary the curvature of the toe seam in hosiery with a sewing machine for sewing toes, use is made of both a horizontal rotating circular surface to support the flattened point of the hose to be sewn with an upper coaxial disk with  alternating vertical movement and firmly rotating in order to hold the end of the hose firmly during sewing.  It includes:     -the means (14, 16) to separately take up the stitches in several places, at the free end of the flattened toe of the hose to be sewn extending beyond the rotating sewing plane(4);     -pneumatic means to activate and deactivate said means (14, 16) for taking up the hose;     -means to set said means (14,16) to take up the hose for movement in a straight line of the hose in a lengthwise direction going away from the sewing surface (4) in order to obtain tension, that is, a stretching of the fabric of the toe of the hose that was taken up by these means (14,16), and respectively getting closer to the rotating sewing surface in order to obtain the movement in a straight line for return to the starting position after the hose has been released;     -means for synchronization of the means for taking up the hose with the above-mentioned disk of the sewing machine for sewing toes.  (Fig. 1)
Patent CA-2062105-A1 (CA)
Title: Purified mite allergen
Inventor: OKA SATORU
IPC: A61P37/08
Filed: 1992-02-28
Abstract: The present invention is directed to novel purified and isolated mite allergens possessing mite allergen activity with a molecular weight of about 94,000, about 40,000, about 16,000 or about 14,000 as determined by SDS-PAGE, which can be isolated from extracts of mite, and to a process for producing such mite allergens. The purified and isolated mite allergens of the present invention are useful as a pharmaceutical and a diagnostic composition for mite allergic diseases.
Patent CA-2063301-A1 (CA)
Title: Device to change dies
Inventor: CONSELVAN PIERLUIGI
IPC: B29C48/08
Filed: 1992-03-18
Abstract: ABSTRACT Device to change dies which is suitable for dies employed for the extrusion of dough as alimentary paste, generally called "pasta",  whether long pasta in strings,  pasta in strips or sheets, bird's nest-type pasta, etc., the device including a fresh die (12) and a used die (11) and having a central lengthwise axis (23) defining in a plane orthogonal to that axis (23) the first and third quarters of a circle, in which quarters the dies  (11 12)  are positioned within specific spaces (14-15), such spaces (14-15) being defined by an outer frame (19) and an inner frame (21), at least one of these frames (19-21) being able to move laterally so as to clamp or free the dies (11-12), the device being able to rotate about the central axis (23).
Patent CA-2066268-A1 (CA)
Title: Method and system for receiving and distributing satellite transmitted television signals
Inventor: GREEN JAMES A
IPC: H04N7/20
Filed: 1990-10-09
Abstract: Three satellite antennas (102a, 102b, 102c) are each trained on a different satellite, and each of the antennas (102a, 102b, 102c) provide separate horizontally and vertically polar-ized outputs on separate lines (104a, 104b, 104c, 106a, 106b, 106c), each of these lines carrying a block of 12 transponder sig-nals. Each of the separate lines (104a, 104b, 104c, 106a, 106b, 106c) are coupled to eight-way power splitters (108a, 108b, 108c, 108d, 108e, 108f). The outputs of each of the splitters (108a, 108b, 108c, 108d, 108e, 108f) are connected over a conventional interconnect bus/network (110) to the inputs of up to eight satel-lite transponder processors (112). The block may then be distri-buted to multiple subscribers.
Patent CA-2068558-A1 (CA)
Title: Multi-layer high opacity film structures and process for producing same
Inventor: KELLER LAJOS E
IPC: B29L7/00
Filed: 1992-05-13
Abstract: A multilayer opaque, biaxially oriented polymeric film structure. The film structure includes (a) a thermoplastic polymer matrix ire layer having a first surface and a second surface, within which is locate a strata of voids; positioned at least substantially within a substantial number of the voids is at least one spherical void-initiating particle which is phase distinct and incompatible with the matrix material, the void space occupied by the particle being substantially less than the volume of the void, with one generally cross-sectional dimension of the particle at least approximating a corresponding cross-sectional dimension of the void; the population of the voids in the core being such as to cause a significant degree of opacity; (b) at least one thermoplastic polymer intermediate layer having a first surface and a second surface, the second surface of the intermediate layer adhering to at least the first surface of the core layer, the intermediate layer including up to about 12% by weight of titanium dioxide contact pigment; and (c) a titanium dioxide-free, non-voided thermoplastic skin layer adhering to the first surface of the intermediate layer, the void-free skim layer and the intermediate layer together being of a thickness such that the outer surface of the skin code layer clues not, at least substantially, manifest the surface irregularities of the matrix core layer.
Patent CA-2069986-A1 (CA)
Title: Window insulator
Inventor: JOHNSON BRENIS E
IPC: E06B9/24
Filed: 1992-05-29
Abstract: ABSTRACT OF THE DISCLOSURE A window insulator comprising an insulator core of lightweight rigid insulating materials and/or flexible foam materials, the flexible from materials being employed at least around the periphery of the core, enclosed by a cover for placement in a window for blocking the entry of sunlight into the interior portion of the structure, for reducing the level of sound energy passing through the window, and for substantially preventing or reducing the transfer of heat through the window. The insulator core may comprise a one-piece body of lightweight, relatively rigid but slightly hand-compressible insulating material. Alternatively, the core may comprise flexible foam material. Alternatively, the core may comprise an interior body of lightweight rigid insulating materials, and flexible, resilient foam members affixed to the peripheral edges of the interior body, The foam members may be affixed to the edges of the interior body by an adhesive, or they may be retained around the edges of the interior body within a saddle of lightweight fabric extending outwardly from the interior body and affixed to the opposite faces of the interior body through a skirt of relatively heavy-duty fabric, which is stitched or otherwise affixed to the inner core portion. A cover is removably mounted around the core. A port may be provided through the insulator.
Patent CA-2071067-A1 (CA)
Inventor: RORDEN LOUIS H
IPC: E21B47/10
Filed: 1992-06-11
Abstract: A transducer is described especially designed for use in providing acoustic transmission in a borehole.      The transducer includes a multiple number of magnetic circuit gaps and electrical windings that have been found to provide the power necessary far acoustic operation in a borehole while still meeting the stringent dimensional criteria necessitated by boreholes. Various embodiments conforming to the design are described. Moreover, the invention includes transition and reflector sections, as well as a directional coupler and resonator arrangement particularly adapted for borehole acoustic communication.
Patent CA-2071153-A1 (CA)
Title: Surface roughening of resin molded articles for metallizing
Inventor: KOIZUMI TOMOYOSHI
IPC: B32B15/08
Filed: 1992-06-12
Abstract: ABSTRACT OF THE DISCLOSURE   A method for roughening the surface of a resin molded article to make it susceptible to metallizing is disclosed, comprising contacting a resin molded article at least the surface portion of which to be roughened mainly comprises a block copolymer comprising 100 parts by weight of a polyarylene sulfide component block and from 100 to 200 parts by weight of a polyarylene sulfide ketone component block with a solvent capable of dissolving a polyarylene sulfide ketone more than a polyarylene sulfide.