baber/WOPTO huggingface dataset:
Patent CA-2006429-A1 (CA)
Title: Compounds
Inventor: STEMP GEOFFREY
IPC: C07D409/12
Filed: 1989-12-21
Abstract: B2672/Abs Abstract Compounds of formula (I), and pharmaceutically acceptable salts thereof:                                                   (I) wherein a and b together form an -O- linkage or a bond or (when R2 is hydrogen), CH2; either Y is N and R2 is hydrogen; or Y is C-R1 wherein either one of R1 and R2 is hydrogen and the other is nitro, cyano, halo, CF3, C2F5, formyl, aldoxime, CF3O, NO2-CH=CH-, NC-CH=CH-; a group RxX-wherein Rx is C1-6 alkyl, aryl or heteroaryl either of which may be optionally substituted by one, two or three of C1-4 alkyl, C1-4 alkoxy, nitro, halo, CF3 and cyano; and X is C=O, O.C=O, C=O.O, CHOH, SO, SO2, O.SO, O.SO2, CONH, O.CONH, O.SO2NH, CO-CH=CH, C=NHOH, C=NNH2; or a group RyRzNZ- wherein Ry and Rz are independently hydrogen or C1-6 alkyl and Z is C=O, SO or SO2; or a group (RwO)2P(O)W wherein Rw is hydrogen or C1-6 alkyl and W is O or a bond; or R1 is a C3-8 cycloalkyl group or a C1-6 alkyl group optionally substituted by a group which is hydroxy, C1-6 alkoxy, amino optionally substituted by one or two C1-6 alkyl groups, C1-7 alkanoylamino, C3-8 cycloalkyloxy or C3-8 B2672/Abs cycloalkylamino; and R2 is hydrogen; or one of R1 and R2 is nitro, cyano or C1-3 alkylcarbonyl and the other is a different group selected from nitro, cyano, halo, C1-3 alkylcarbonyl, methoxy or amino optionally substituted by one or two C1-6 alkyl or by C2-7 alkanoyl; or R1 and R2 together with the carbon atoms to which they are attached, form 2,1,3-oxadiazole; either one of R3 and R4 is hydrogen or C1-4 alkyl and the other is C1-4 alkyl; or R5 is hydrogen, hydroxy, amino, C1-6 alkoxy or C1-7 acyloxy; and E is hydrogen; or R5 and E together form a bond; either R6 is hydrogen or C1-6 alkyl; and R7 is hydrogen, C3-8 cycloalkyl, C2-6 alkenyl, C1-6 alkyl optionally substituted by hydroxy, C1-6 alkoxy, C1-6 alkoxycarbonyl, carboxy, halogen or amino optionally substituted by one or two C1-6 alkyl groups; aryl or heteroaryl either being optionally substituted by one or more groups or atoms selected from the class of C1-6 alkyl, C1-6 alkoxy, hydroxy, halogen, trifluoromethyl, nitro, cyano, C1-12 carboxylic acyl, or R7 is amino or aminocarbonyl optionally substituted by one or two C1-6 alkyl groups or substituted by C3-8 cycloalkyl, or a group OR9 wherein R9 is C1-6 alkyl or benzyl optionally substituted as defined for R7; or R6 and R7 are joined together to form C3-4 polymethylene optionally substituted by one or two C1-6 alkyl groups and optionally containing one or, (when C4 polymethylene), two, C=C double bond(s); and B2672/Abs X is oxygen or sulphur, which are potassium channel activators, useful in the treatment of disorders associated with smooth muscle contraction, a process for their preparation and their use as pharmaceuticals.
Patent CA-2006551-A1 (CA)
Inventor: DUMONTEIL JEAN-PIERRE
IPC: F16C13/00
Filed: 1989-12-22
Abstract: BREVET D'INVENTION Roue pour chariot comportant deux paliers de roulement protégés par des pare-fils. Société Anonyme dite : GUITEL-ETIENNE-MOBILOR L'invention concerne une roue pour chariot comportant deux paliers de roulement protégés par des pare-fils. Les bagues extérieures sont serties dans des logements latéraux annulaires du moyeu de la roue, et les bagues intérieures sont en butée l'une contre l'autre dans le plan médian de la roue et forment l'axe de la roue. La bague intérieure est constituée de deux pièces, un manchon comportant un épaulement annulaire délimitant le chemin de roulement intérieur des éléments de roulement, et une pièce annulaire de blocage située de l'autre côté du chemin de roulement intérieur par rapport à l'épaulement du manchon. De préférence, la pièce annulaire de blocage est située du côté latéral de la roue, recouvre le manchon et porte le pare-fils. Figure 1
Patent CA-2006577-A1 (CA)
Title: Hypoglycaemic phenylamidines and phenylguanidines
Inventor: GOPALAN BALASUBRAMANIAN
IPC: C07D207/22
Filed: 1989-12-22
Abstract: Compounds of formula I   (see formula I) and their salts in which n = 0 or 1, R1 and R2 are each aliphatic or cycloalkyl or NR1R2 is an optionally substituted heterocyclic ring, R3 is alkyl, cycloalkyl or optionally substituted amino, R5 is an aliphatic group, R6 is H, an optionally substituted aliphatic group or a cycloalkyl group, or R3 and R5 together with the nitrogen and carbon atoms to which they are attached form an optionally substituted heterocyclic ring or R5 and R6 together with the nitrogen to which they are attached form a heterocyclic ring optionally substituted by alkyl and R7 is optionally substituted alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkoxycarbonyl, trifluoromethyl or cyano have utility as hypoglycaemic agents.
Patent CA-2009935-A1 (CA)
Inventor: MORRIS ARNOLD M
IPC: B66B13/12
Filed: 1990-02-13
Abstract: An elevator car having a clutch pivotally carried by a car door and biased to an operative position in which drive rollers of an adjacent hatch door may be engaged by "open" and "close" vanes. A first parallelogram linkage operates the close vane in direct response to car door position, in a direction opposite to initial car door opening movement. A second parallelogram linkage, associated with the open vane, is operated when the open vane contacts a hatch door roller at the start of door opening, to unlock the car door by retracting a plunger from an opening in the car door sill. The car door clutch bias may be manually overcome by authorized maintenance personnel, to disengage the car door from a hatch door.
Patent CA-2010370-A1 (CA)
Inventor: NAGANO FUMIKAZU
IPC: H04N1/40
Filed: 1990-02-19
Abstract: An optical reading apparatus which can read both transparent and reflective originals is disclosed. The apparatus comprises:  a transparent plate  for supporting on the upper face an original from which information is to be read, a light source disposed below the plate; an optical reading unit disposed below the plate and having a converter information read from the original into electric signals; and a processor for processing these signals, and further comprises: a further optical reading unit disposed above the upper face of the plate and having another converter for converting information read from the original into further electric signals;  and a switch for selecting either of the electric signals and the further electric signals to be supplied to the processor.
Patent CA-2010710-A1 (CA)
Title: Silver halide photographic light-sensitive material inhibited in producing pin-holes
Inventor: TAKAMUKI YASUHIKO
IPC: G03C1/85
Filed: 1990-02-22
Abstract: ABSTRACT OF THE DISCLOSURE      A silver halide photographic light-sensitive material is disclosed, which is inhibited in forming pin-holes in a phgotomechanical processes. The light-sensitive material comprises a support on a surface of which an electric conductive layer is provided. The electric conductive layer comprises a polymer having an aromatic ring or a heterocyclic ring each having a sulfonic acid group or a salt bonding to the aromatic or heterocyclic ring directly or through a divalent group, and a latex. This layer has a swelling degree of from 0.2 percent to 300 percent.
Patent CA-2012706-A1 (CA)
Inventor: GLANCY CHARLES W
IPC: B05D1/02
Filed: 1990-03-21
Abstract: PRECURSOR COATING COMPOSITIONS CONTAINING WATER AND AN ORGANIC COUPLING SOLVENT SUITABLE FOR SPRAYING  WITH SUPERCRITICAL FLUIDS AS DILUENTS              ABSTRACT OF THE DISCLOSURE The present invention relates to precursor coating compositions containing water and at least one organic solvent which are particularly suitable for being admixed with at least one supercritical fluid used as a viscosity reduction diluent and then spraying this resultant liquid mixture of supercritical fluid and precursor coating composition onto a substrate to be coated. Processes for spraying this precursor mixture are also disclosed.          D-16,159
Patent CA-2013316-A1 (CA)
Inventor: BURDICK BRENT A
IPC: C12Q1/68
Filed: 1990-03-28
Abstract: METHODS OF EXTRACTING, AMPLIFYING AND DETECTING A NUCLEIC ACID FROM WHOLE BLOOD OR PBMC FRACTION           Abstract of the Disclosure A nucleic acid is rapidly extracted from whole blood or a peripheral blood mononuclear cell (PBMC) fraction thereof.  Extraction from the PBMC fraction is accomplished by heating the fraction at or near the boiling point of water for a few minutes and recovering the extracted nucleic acid.  This rapid method is particularly useful for extracting DNA for the detection of genetic diseases or infectious agents, such as HIV-I.  Whole blood can likewise be heated after it is mixed with a salt solution containing a polysaccharide, such as dextran.  The extracted nucleic acid is then recovered from the heated mixture.  Nucleic acids extracted in this way are available for amplification using a polymerase chain reaction.  Where the presence of a specific gene is to be determined for diagnostic purposes, it can be extracted as described above and subjected to suitable amplification and detection steps.
Patent CA-2014057-A1 (CA)
IPC: F16N7/36
Filed: 1990-04-06
Abstract: A device is provided for the circulation of fluid through and about the rotary shaft of a rotating piece of equipment.  The circulation is induced by a plurality of radially extending passageways from a center bore in the rotor shaft which extend to the external periphery of the shaft.  Rotation causes the center of the shaft to be evacuated by pumping action created by the radial slots thereby producing a lowered pressure area producing a circulation path axially along the outside periphery of the shaft in one direction and axially along an internal through bore in the shaft towards the other end containing the radial slots. Bearings for mounting the shaft being disposed about the outer periphery of the shaft are thereby provided with lubrication and a cooling flow of fluids.
Patent CA-2014474-A1 (CA)
Title: Deicing composition containing one or more anionic fluorinated surfactants
Inventor: FALLA DANIEL J
IPC: C09K3/18
Filed: 1990-04-12
Abstract: ABSTRACT OF THE DISCLOSURE         A deicing composition for use in removing ice from a surface such as the windshield of an automobile, comprising in combination one or more monohydric alcohols, one or more polyhydric alcohols, and one or more anionic fluorinated surfactants.   37,962-F
Patent CA-2014866-A1 (CA)
Title: Vacuum lifting device for handling sheet material
Inventor: DOST JAMES A
IPC: B65H5/14
Filed: 1990-04-19
Abstract: VACUUM LIFTING DEVICE FOR HANDLING SHEET MATERIAL               Abstract of the Disclosure A small, compact, self-contained vacuum lifting device is attachable to a crane and operates to lift and subsequently release a sheet of material.  The device comprises a vertically extending support assembly including an eyebolt at its upper end for attachment to the hook, a threaded rod and a coupling nut securing the eyebolt and rod together.  The lower end of the rod is connected to a vacuum pad which is cooperable with the sheet to define a vacuum chamber.  A base plate located above the vacuum pad is fixedly secured to the support assembly by entrapment between the vacuum pad and a jam nut of the rod.  A cover member is fixedly secured to the eyebolt by entrapment between the coupling nut and the eyebolt and cooperates with the base plate to provide a protective housing.  A vacuum pump driven by an electric motor having an on/off switch is mounted on the base plate within the housing and has a suction port which is connected to the vacuum chamber through an air filter, a one-way check valve and an air passage in the vacuum pad.  A manually operable closed/open vacuum release valve is connected between the suction port and the one-way check valve and atmosphere.  A vacuum gauge is connected to the suction port. Manually operable actuators for the motor switch and vacuum release valve and the vacuum gauge are mounted on the exterior of the housing.  In operation, with the device resting on the sheet and with the vacuum release valve closed, actuation of the motor switch starts the motor and vacuum pump so as to create a vacuum in the vacuum chamber (which is maintained by the one-way check valve) whereby the sheet adheres to the vacuum pad.  The crane is then operated to raise, transport and lower the lifting device and sheet adhereing thereto.  Manually opening the vacuum release valve to admit air into the vacuum chamber enables the lifting device to be detached from the sheet.
Patent CA-2015903-A1 (CA)
Title: Grafting of amine functional polymers onto functionalized oxymethylene polymers and the resulting graft polymers thereof
Inventor: AUERBACH ANDREW B
IPC: C08G2/18
Filed: 1990-05-02
Abstract: ABSTRACT      Novel oxymethylene graft polymers are obtained by grafting, via Michael addition, an amine functional polymer onto an oxymethylene backbone having pendant acrylate or substituted acrylate ester groups serving as reactive sites for the graft reaction.
Patent CA-2017298-A1 (CA)
Inventor: SHIDA MAKOTO
IPC: H03K21/40
Filed: 1990-05-22
Abstract: The present invention relates to an electronic odometer.  Integrated distance travelled data to be stored in a nonvolatile memory is divided into three portions, i.e., high order digital data, medium order digital data, and low order digital data.  A plurality of memories constituting the nonvolatile memory are provided.  The digit which represents the medium order digital data is used to select addresses or part addresses within the memories which are to be used.  The high order digital data which is required to be the most reliable of the three portions are written into at least three memory positions which have been selected by the medium order digital data and the low order digital data is written into at least one of the rest of the memory positions selected by the medium order digital data.  When extracting the integrated distance travelled data from these memories, the high order digital data is determined by applying majority rule to the data read out from the at least three selected memories.  The reliability on the integrated distance travelled data is enhanced by the application of majority rule.
Patent CA-2017429-A1 (CA)
Inventor: WELSCH BERNHARD J
IPC: B65H5/00
Filed: 1990-05-24
Abstract: ABSTRACT OF DISCLOSURE      In a paper processing machine, the method and apparatus of this invention apply an opposite electrostatic charge to stacks and reams of paper to eliminate the repelling force from like charges on both sides of the individual sheets of the stack or ream to thereby temporarily bond them together.  With the sheets thus temporarily bonded, the stacks and reams of paper can be easily transported between work stations without undesirable sliding of the sheets.
Patent CA-2018129-A1 (CA)
Inventor: LEHMKUHL HERBERT
IPC: C25D3/44
Filed: 1990-06-01
Abstract: The invention relates to organoaluminum electrotyles for the electrolytic deposition of aluminum which are characterized in that they consist of KF . 2 AlEt3 (A), .KF . 2 AlMe3 (B) and MF . 2 A1(iBu)3 (C), wherein M = sodium or potassium or a mixture of both, in a molar ratio of A:B:C of from 2:1:1 to 7:1:1, The organo-aluminum electrolytes are dissolved in from 2 to 4.5 moles, based on the amount of MF employed, of an aromatic hydrocarbon which is liquid at 0 ~C.      The invention further relates to a process for the electrolytic deposition of aluminum on electrically conductive materials by using said electrolytes.
Patent CA-2018254-A1 (CA)
Inventor: LUGSCHEIDER ERICH
IPC: C23C4/06
Filed: 1990-06-05
Abstract: Title: High temperature MCrAl(Y) composite material and processes for its preparation and its use ABSTRACT OF THE DISCLOSURE      MCrAlY composite material with platinum and/or rhodium alloying elements as 5-15 wt.% thereof and containing included particles of carbides vanadium, niobium, tantalum, titanium, zirconium, hafnium, chromium, molybdenum and/or tungsten and/or mixtures thereof, enhancing the corrosion - and wear - resistance of such materials at high temperatures.
Patent CA-2019426-A1 (CA)
Title: Lithium salts as red blood cells lysing hemoglobin denaturing reagents
Inventor: LEWIS LYNETTE A
IPC: G01N33/72
Filed: 1990-06-20
Abstract: Use of a lithium salt, particularly lithium thiocyanate, as an agent for lysing red blood cells and denaturing hemoglobin in the performance of an immunoassay to detect the relative amount of a hemoglobin derivative in a blood sample. The method is particularly useful in the determination of hemoglobin Alc. The method provides a rapid means for releasing hemoglobin from red blood cells by lysis and for exposing the epitope that is characteristic of the Alc form. Low concentrations of the lithium salt provide rapid release and denaturation of hemoglobin without the need for dilution prior to the performance of the immunoassay.
Patent CA-2022719-A1 (CA)
IPC: E04F13/06
Filed: 1990-08-03
Abstract: IMPROVED CORNER BEAD FOR DRYWALL CONSTRUCTION                   Abstract of the Disclosure A  corner  bead  for  drywall  construction  has  a galvanized steel core strip which is formed with a central portion,  side  flanges,  and  shoulders  joining  the  central portion and side flanges.  The front face of the core strip is covered with a paper layer having an outer protective coating thereon   overlying  the  central  portion   adjoining   said shoulders.   A paper reinforcing layer covers the back of the core strip to minimize the thickness of the core strip.
Patent CA-2023101-A1 (CA)
Title: Litter box liner
Inventor: PACIULLO FRANCIS P
IPC: A01K1/01
Filed: 1990-08-10
Abstract: A litter box liner comprising a polyethylene bag having on one side a sheet of spun bonded non-woven nylon fibers bonded thereto. The bag is pulled over a litter box with the nylon sheet extending upwardly and is pulled off the box by inverting the bag to enclose the animal waste and litter that was disposed in the box. The nylon sheet rendered the liner claw resistant.
Patent CA-2023397-A1 (CA)
Title: Voice guard digital voter for multi-site pst rf trunking system
Inventor: DERENGE CHARLES L
IPC: H04L1/24
Filed: 1990-08-16
Abstract: A voice Guard digital voter system for a mulit-site public service trunking (PST) digitally trunked RF communications system operates on the principle that it is highly likely that messages received during a system redundancy removal period are redundant messages. For a given RF channel, digital receiver is associated with each of multiple sites and receives digital messages reported to it by its associated sites. The multiple digital receivers axe connected to a digital selector via a service request line (FSL) and a serial data line (BSL).      Digital receivers calculate a bit error rate code (BERC) for each message they receive. All digital receivers receiving a version of a message are synchronized by the digital selector in response to a request to transmit by one of the digital receivers.      The digital receivers wait a delay time corresponding to the BERC they calculates and also responsive to a fixed slot assignment associated with each digital receiver. The digital receiver having the lowest calculated BERC begins first to transmit its message to the selector -- and all other receivers abort transmitting. Bus contentions between digital receivers calculating the same BERC by introducing the additional delay time corresponding to digital receiver fixed slot assignment.
Patent CA-2023865-A1 (CA)
Inventor: SCHNIEDERMEIER HENRY W
IPC: F16B15/00
Filed: 1990-08-23
Abstract: A nail designed to be initially driven through a first board, and into a second board so as to assemble the boards with the boards engaging each other, and to be subsequently pulled, as by a crowbar or a claw on a hammer head, so as to disassemble the boards.  The nail has a head and a shank with a pointed end.  A relatively smooth portion of the shank extends axially from the pointed end for a substantial distance.  A relatively rough portion, which is formed with annular, frustoconical rings defining annular grooves, extends axially from between the relatively smooth portion toward the head for a distance equal approximately to the thickness of the first board.  A relatively smooth portion extends axially between the relatively rough portion and the head.  The nail has differential holding capabilities per unit length along its shank, when driven into wooden boards.
Patent CA-2025186-A1 (CA)
Title: Self-bonded fibrous nonwoven webs
Inventor: EATON GERALDINE M
IPC: D04H3/02
Filed: 1990-09-12
Abstract: A self-bonded, fibrous nonwoven web having a uniform basis weight of about 0.1 oz/yd<2> or greater and improved physical properties, a method for producing same and composite fabrics comprising the nonwoven web useful for applications in for example, hygiene, healthcare and agriculture markets.
Patent CA-2025401-A1 (CA)
Title: Polyimide compositions containing polyorganosiloxane for improving atomic oxygen resistance
Inventor: KATZ MORTON
IPC: C08L83/04
Filed: 1990-09-14
Abstract: A polyimide composition is disclosed with improved atomic oxygen resistance through incorporation of a specific polyorganosiloxane.
Patent CA-2026171-A1 (CA)
Title: Vibration testing system
Inventor: FOWLER DAVID L
IPC: G01M7/02
Filed: 1990-09-25
Abstract: ABSTRACT OF THE DISCLOSURE      Rapid exchange vacuum fixture vibration system adapted  for use with a vibration testing machine designed to  move a surface  to induce vibration in a fixture attached to a unit under test.  The invention includes an adapter plate attached, at a first surface, to the surface of the vibration testing machine.  A vacuum panel assembly, housing a vacuum pump, is included for creating a vacuum between the upper surface of the adapter plate and the lower surface on the fixture whereby the fixture and the unit under test attached thereto is secured to the adapter plate and thereby secured to the vibration testing machine without using bolts or other hardware for clamping.     Thus, the method of the invention includes the steps of attaching an adapter plate to the vibration machine; easily placing a fixture, with a unit under test attached, on the adapter plate; and evacuating the volume between the adapter plate and the fixture to create a holding force therebetween sufficient to hold the fixture to the adapter plate during vibration testing.
Patent CA-2026701-A1 (CA)
Title: Apparatus for harvesting mushrooms
Inventor: VAN DEN TOP HENDRIK
IPC: A01D45/00
Filed: 1990-10-02
Abstract: ABSTRACT            APPARATUS FOR HARVESTING MUSHROOMS      An apparatus for harvesting mushrooms comprises a mobile frame 1 that can move along guidings 3 and a knife 10 with a cutting edge 11. The mushrooms cut off by the knife 10 move upward along a sloping surface and are transported by the conveyor 25 which has carriers in the form of brush bristles 26. The carriers 26 have a mutual spacing which corresponds approximately with the width of the button of the mushroom so that a cut mushroom is gripped between successive carriers and is transported standing upright. Owing to this individual transport damage is prevented.