baber/WOPTO huggingface dataset:
Patent CA-1038540-A (CA)
Inventor: COYNER ROBERT N
IPC: C08G18/72
Filed: 1974-11-25
Granted: 1978-09-12
Abstract: Abstract of the Disclosure The disclosed process for making a high % solids, one-part, moisture-curable, essentially flowable or pumpable, high equivalent weight polyurethane (i.e. polyol-polyisocyanate adduct) prepolymer composition involves de-watering the polyol component of the reaction mixture with an alkaline earth metal oxide, preferably calcium oxide; adding the minimum acceptable level of catalyst for NCO/polyol reaction; exothermically reacting a partially hindered aliphatic polyisocyanate such as isophorone diisocyanate (IPDI) and a partially hindered aromatic polyisocyanate such as 2,4-toylene diisocyanate seriatim, so that at least one-fourth of the IPDI reacts before the 2,4-TDI is added; and then adding more catalyst for the moisture cure.  Careful control over the amounts and selection of raw materials, proper selection of sequences of addition of these amounts and materials, careful de-watering of the reaction mixture, and proper adjustment or selection of isocyanate functionality minimizes random and unde-sired reaction and side reactions (e.g. chain extension) during prepolymer formation and insures good elastomeric properties in the ultimately cured product.  As a result, this well-controlled prepolymer composition can be made efficiently with simple mixing equipment.  One of the preferred coating or sealant uses for the prepolymer product is cured elastomeric coatings for the building industry, e.g. as a primary seal in roofing.
Patent CA-1039842-A (CA)
Inventor: RAAB ANTHONY R
IPC: H01Q19/18
Filed: 1975-01-23
Granted: 1978-10-03
Abstract: Abstract of the Disclosure A compact antenna system that permits orthogonally polarized frequency reuse operation is achieved by two overlapping parabolic reflectors.  Each of the reflectors has a reflecting surface comprised of parallel, reflecting, conductive elements with the reflecting elements of one reflector polarized orthogonally to the reflecting elements in the other. each reflector has an associated feed copolarized with the reflecting elements of the particular reflector.  The two reflectors are overlapped, without coinciding their respective focus points, near their vertices and at their more nearly flat ends.  Consequently, cross-polarized fields generated by the parallel elements in the surface of each reflector from its associated feed are scattered away from the copolarized beam of each reflector and further the structure is compact, particularly along the desired axis of reflection.
Patent CA-1037633-A (CA)
Inventor: HESSE WOLFGANG
IPC: C08G8/12
Filed: 1975-03-07
Granted: 1978-08-29
Abstract: A b s t r a c t A cement composition yielding alkaline-resistant bonds considering of a mixture of a) a solution of at least one partially etherified methylol phenol and at least one partially etherified methylol alkylphenol in a solvent, the methylol phenol components having at least two positions reactive with formaldehyde and being free of alkaline catalysts used in their preparation, with b) a cement powder containing an acid catalyst, an acid-hardened , alkali-resistant cement obtained therefrom by curing and the process of their preparations.
Patent CA-1058007-A (CA)
Inventor: STOUWDAM GERRIT
IPC: A23L1/212
Filed: 1975-03-21
Granted: 1979-07-10
Abstract: PROCESS FOR THE PRESERVATION OF ROOT-CROP PLANTS               Abstract of the Disclosure A process for treatment of root-crop plants, such as potatoes, carrots and turnips to enable such plants to be kept longer without spoiling comprises heating peeled product to hydrolize a starch content until to the reaction to the enzyme peroxidase is negative on the surface of the root and for about 5-7 mm towards the core; and then cooling such plant. Treatment with a preservative such as "sorbic" said and a compound which liberates sulphur dioxide may be used to enhance the treated products.
Patent CA-1045552-A (CA)
Inventor: ASHTON WILLIAM H
IPC: A61Q11/00
Filed: 1975-04-10
Granted: 1979-01-02
Abstract: ABSTRACT OF THE DISCLOSURE           A stabilized, flavored dental article for cleaning the interproximal surfaces of the teeth such as dental floss or dental tape comprising filaments of a substrate material formed into a larger thread of a sufficiently small diameter to permit insertion between the teeth.  The thread is impregnated with water-insoluble wax containing spray-dried flavor particles.  The use of a flavored dental floss as opposed to the more common unflavored variety provides aesthetic advantages to the floss making the use of said floss more pleasant thereby encouraging better hygiene practices.
Patent CA-1056541-A (CA)
Title: Heat-resistant resin composition comprising polyaminobismaleimide, polyepoxy compound and aromatic vinyl copolymer and method for using the same
Inventor: WATANABE TSUTOMU
IPC: C08L79/08
Filed: 1975-04-30
Granted: 1979-06-12
Abstract: ABSTRACT OF THE DISCLOSURE                A heat-resistant composition suitable for use in multilayer super high density printed circuit boards, comprising a polyaminobismaleimide, a polyepoxy compound, and an aromatic vinyl copolymer containing as structural unit maleic anhydride and/or an alkyl maleate.  This resin composition is excellent in thermal resistance and dimensional stability, which are important properties or a resin composition for practical use in lamination, and when used in lamination, exhibits favorable flow and curing properties so that it can be easily and economically processed under conventional laminating conditions.  When used as a multilayer printed circuit board material, it is also characterized by excellent adhesion to a coper foil, particularly in bonding an inner circuit copper foil to the board.  Although particularly suitable for use in multilayer printed circuit boards of numerous layers (eight or more layers) bearing highly packed circuits and as an interlayer adhesive sheet, the present resin composition can be used in general heat-resistant printed circuit boards and in general heat-resistant structural laminates.
Patent CA-1051263-A (CA)
Inventor: DAVIDSON JAMES R
IPC: G03G15/095
Filed: 1975-05-07
Granted: 1979-03-27
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus is disclosed for transferring all but one component of a multi-component mix from a support surface to which the multi-component mix is electrostatically attracted to a sheet of support material.  The transfer is accomplished by lessening the attractive force between the mix and the support surface and subsequently removing the one component from the mix and effecting transfer of the reminder of the mix to the sheet of support material.
Patent CA-1041203-A (CA)
Inventor: MOOREHEAD THOMAS J
IPC: H04Q3/00
Filed: 1975-05-28
Granted: 1978-10-24
Abstract: ABSTRACT           A status detector control comprises temporary storage to receive a sense point address which is coupled to decoders to decode the particular sense point address.  A second tem-porary storage is provided to store the status of an addressed sense point.  An error register is provided to store an error signal when a fault detector is coupled to the circuit.  A decoded address (units and tens) is coupled from the status detector control to a decoder driver which drives a status detector driver.  If fault detection is provided in the cir-cuitry, it is coupled to the status detector driver circuitry. The status detector driver output is coupled through the sense points to a receiver.  This receiver comprises a pulse trans-former with the secondary coupled to the sense points and coupled via three diodes to ground.  A strobe signal produced by the status detector control strobes the primary of the pulse transformer which is output to Schmitt triggers.  The output of the Schmitt triggers is coupled to a multiplexer with the de-coded address (hundreds and thousands) from the status detector control.  The output of the multiplexer is coupled in the status detector control to store the status of the addressed sense points.
Patent CA-1037282-A (CA)
Inventor: BABCOCK CLARENCE O
IPC: G01B5/30
Filed: 1975-06-30
Granted: 1978-08-29
Abstract: In re application of CLARENCE O. BABCOCK          For:  LOAD MEASURING GAGE     ABSTRACT           A load measuring gage generally shaped like a conventional split ring washer.  In the center opening of the gage a shaft, which mounts the device whose load is to be measured, may extend through the washer.  The opening for the washer is cut diagonally so that the loading and unloading forces acting upon it are collinear thereby reducing friction that resist its opening and closing to a minimum.  This is accomplished by orienting the angle between the split ring surface and adjacent bearing surface to be between 50 and 62 degrees.  A force indicating pointer and scale can be attached to the washer to inform observers visually of variations in the force applied to the gage.          In this way if the tension on a mine rock bolt is being measured, observers may safely be informed of the force on the in situ bolt from a distance.
Patent CA-1045680-A (CA)
Inventor: LAI SAN-CHENG
IPC: H01M4/64
Filed: 1975-09-02
Granted: 1979-01-02
Abstract: ABSTRACT    An improved lithium electrode structure comprises an alloy of lithium and silicon in specified proportions and a supporting current-collecting matrix in intimate contact with said alloy.  The lithium electrode of the present invention is utilized as the negative electrode in a rechargeable electrochemical cell.
Patent CA-1038841-A (CA)
Inventor: CHADWICK DONALD T
IPC: G06F3/02
Filed: 1975-11-05
Granted: 1978-09-19
Abstract: LIGHT EMITTING DIODE INDICATOR ASSEMBLY FOR A MULTIPLE PUSH-BUTTON ARRAY          Abstract of the Disclosure A light emitting diode  indicator assembly for a multiple pushbutton array has a printed circuit board with a plurality of circuits thereon, each circuit having a connection position for a light emitting diode; a spacer attached to the printed circuit board with a location for a light emitting diode coincident with a related connection position; a light emitting diode at each location with leads connected to the related circuit; a lens over each diode; and a bezel having a first row of apertures with a lens situated in each aperture, and a second row of apertures with a pushbutton in each aperture, the bezel and spacer having interengaging formations whereby the spacer is inserted into a recess in the bezel and the formations engaged by lateral movement of the spacer relative to the bezel.  There can be more than one row of lens containing apertures, and also more than one row of pushbuttons containing apertures.                             - i -
Patent CA-1071740-A (CA)
Inventor: BATEMAN CHARLES D
IPC: G05D1/06
Filed: 1975-11-26
Granted: 1980-02-12
Abstract: TERRAIN CLOSURE WARNING SYSTEM WITH ALTITUDE RATE SIGNAL CONDITIONING                    ABSTRACT OF THE DISCLOSURE    In an aircraft terrain warning system utilizing a radar altimeter wherein the rate of closure to the terrain is compared with the aircraft's altitude above the terrain to generate a warning signal when the closure rate is excessive for a particular altitude, the closure rate signal is limited and biased depending upon the aircraft's closure rate and configuration in order to significantly increase the time response of the system while at the same time reducing nuisance warnings.  The amplitude limit on the closure rate signal is varied above a predefined altitude, as a function of the closure rate signal in order to provide increased warning times at greater closure rates. Circuitry, responsive to the aircraft's flap positions, is also provided to alter the characterisitcs of rate limiter so as to provide warning parameters that more accurately reflect operating conditions at lower aircraft speeds.
Patent CA-1043549-A (CA)
Inventor: JOY HERMAN J
IPC: D06C21/00
Filed: 1975-12-09
Granted: 1978-12-05
Abstract: APPARATUS WITH FLEXIBLE PRESSURIZING SHEET   AND RELATED METHOD FOR PROCESSING CLOTH, ESPECIALLY KNITTED CLOTH                     Herman J. Joy ABSTRACT OF THE DISCLOSURE          A cloth web preshrinking apparatus is disclosed including an inlet roller, a heated drum and a blanket (usually a felt type end-less blanket) running on the inlet roller and thence onto an outer face of the drum.  A first initially outer surface of the blanket is stretched and then compacted.  A cloth web is introduced into fric-tional contact onto the first surface of the blanket as it is stretched and the cloth web is then preshrunk as the first surface is compacted. A smooth strong flexible sheet (in the form of an apron or endless ribbon at least as wide as the cloth web) presses the cloth web onto the inlet roller and thereafter the sheet extends in contact with the cloth web on an upper face thereof onto the outer face of the drum.
Patent CA-1078120-A (CA)
Title: Process for reconstructing a worn tyre through the direct application to the carcass of the tyre of a premoulded tread
Inventor: ITALIANA BENIGNI
IPC: B29D30/54
Filed: 1976-01-05
Granted: 1980-05-27
Abstract: ABSTRACT OF THE DISCLOSURE The present invention provides a process for retreading a worn tyre by the direct application to the carcass of the tyre of a premoulded tread.  In the process a sheet of adhesive mater-ial is prepared which anchors the tread to the carcass of the tyre.          The sheet is prepared from an admixture comprising, at least one non-vulcanized bonding material, at least one vulcanization accelerator, at least one vulcanizing agent, a high percentage in weight of co-vulcanizing resins, and an agent for the prevention of scorching.  The sheet of adhesive material is bonded to the inner surface of the tread by means of rolling and simultaneously with the rolling air trapped between the tread and the sheet of adhesive material is expelled via the perforations formed in the said sheet of adhesive material.  The assembly of premoulded tread is applied to the rolling surface of the carcass with the sheet forming an intermediate layer.  The assembly and carcass are then enshrouded by a casing in a gas-tight manner and put in a vulcanization oven where vulcanization is effected.
Patent CA-1075234-A (CA)
Inventor: GANGULY ASHIT K
IPC: C07H17/08
Filed: 1976-02-24
Granted: 1980-04-08
Abstract: Described is a novel process for the preparation of 12-,13-desepoxy-12,13-dehydrorosamicin by reducing rosa-micin in a mineral acid solution containing Cr++ cations. Rosamicin is an antibiotic elaborated by Micromonospora rosaria.
Patent CA-1057400-A (CA)
Inventor: BONNEROT GEORGES
IPC: G06F17/14
Filed: 1976-02-27
Granted: 1979-06-26
Abstract: ABSTRACT:             Arrangement for computing the discrete Fourier transform and which is intended for converting N samples of a real signal given in the time domain to N real Fourier coefficients and vice versa.  This device is realized by means of a conventional Fourier transformer of the order ?, to which an input computer unit and an output computer unit are connected in which a small number of multiplica-tions of complex numbers is performed.
Patent CA-1052352-A (CA)
Inventor: CATTO KENNETH A
IPC: G11B15/29
Filed: 1976-03-17
Granted: 1979-04-10
Abstract: REVERSIBLE TAPE DRIVE APPARATUS                 Abstract of the Disclosure Apparatus for selectively driving a magnetic tape, or the like, in reverse directions.  The apparatus features a pair of shafts driven simultaneously in a common direction by a shared motor, and a pinch roller for each shaft for pinching thereagainst a stretch of tape extending between the roller and shaft.  Shifting mechanism mounts the rollers in such a manner that shifting of one roller to pinch tape against its associated shaft is accompanied by simultaneous shifting of the other roller away from its associated shaft, and vice versa.  The shift mechanism also permits the rollers both to be simultaneous-ly shifted away from their respective associated shafts, whereby one or both of these shafts may be used for other operations.
Patent CA-1041467-A (CA)
Inventor: LUNSFORD JIMMY L
IPC: F04D29/46
Filed: 1976-03-24
Granted: 1978-10-31
Abstract: VARIABLE DIFFUSER          Abstract of the Disclosure A diffuser for a centrifugal compressor has an annular array of vanes which are movable to vary the con-figuration of the diffusing passages between the vanes.  Each vane includes a first leaf pivoted adjacent the leading edge of the vane and a second leaf pivoted on the first leaf. These leaves have slots extending chordwise of the vanes which are engaged by pins extending from an actuating ring rotatable about the axis of the diffuser.  The slots in the two leaves are at an angle to each other so that when the ring is rotated and the pins move chordwise of the vanes in the leaves, the angle of the first leaf to the radial direction is changed and also the second leaf is moved relative to the first leaf to vary the width of the passage in addition to such variation as results from the change in the angle of the first leaf.
Patent CA-1074191-A (CA)
Inventor: GRANDLIC EUGENE J
IPC: B29C67/00
Filed: 1976-04-09
Granted: 1980-03-25
Abstract: ABSTRACT     Low density laminates of glass fiber reinforced unsatu-rated polyester resins are obtained by combining an unsaturated polyester resin syrup with an alpha hydroxy azo blowing agent immediately prior to spraying with randomly oriented chopped glass fibers which are thereupon collected on a substrate.  The resin is cured on the substrate to produce a glass fiber reinforced laminate having a low density, that is, less than 75 percent of the density of a similar laminate produced from the same unsaturated polyester resin syrup in the absence of the alpha hydroxy azo blowing agent.    Inert particulate fillers can be incorporated in the unsaturated polyester resin syrup.  Alumina trihydrate is a preferred inert particulate filler.    In one method, the unsaturated polyester resin syrup is mixed with the alpha hydroxy azo blowing agent immediately prior to forming a spray of the mixture.  In another method, the unsaturated polyester resin syrup is formed into a first distinct spray and impinged upon a second distinct spray of the alpha hydroxy azo blowing agent.  The two combined sprays are impinged against chopped glass fibers to produce the laminate.
Patent CA-1082697-A (CA)
Title: Procede de preparation d'un nouveau derive de la desoxystreptamine et ses sels
Inventor: CHAZAN JEAN B
IPC: C07H15/22
Filed: 1976-07-07
Granted: 1980-07-29
Abstract: L'invention concerne un nouveau dérivé de la famille des aminoglycosides, à savoir la N1 / L (-) 2-hydroxy 4-amino butyroyl/ 4-0 /2', 6'-diamino 2', 6'-didésoxy .alpha., D glucopyranosyle/ 6-0 /3"-méthylamino 3", 4", 6"-tridésoxy .alpha.- D-xylohexopyranosyl/ 2-désoxy streptamine, et ses sels d'addition non toxiques et pharmaceutiquement acceptables avec les acides.  L'invention concerne également un procédé de préparation de ces nouveaux dérivés.   Lesdits dérivés possèdent des propriétés antibiotiques.
Patent CA-1041475-A (CA)
Inventor: SCHMIDT HANS H
IPC: B66F11/00
Filed: 1976-08-06
Granted: 1978-10-31
Abstract: ABSTRACT OF THE DISCLOSURE        A climbing jack having a jack column along which a jack assembly surrounding the column is adapted to move.  The jack assembly is divided into two sections separated by one or more hydraulic ram arrangements which move each jack section in turn relative to the other.  Each jack section includes one or more pawl devices pivoting about support axis extending transversely of the longitudinal axis of the column whereby one or the other of the ends of each pawl device will engage a plurality of evenly spaced apertures or projections along the column such that when one jack section is moving relative to the column the pawl devices in the other jack section will be in engagement with an aperture or projection in, or on, the column.  The relative movement between the jack assembly and the jack column being reversed by shifting the pawl devices into a position whereby their other ends are adapted to engage the apertures or projections in, or on, the column.
Patent CA-1084436-A (CA)
Inventor: SUZUKI TAKEO
IPC: B41J9/38
Filed: 1976-08-13
Granted: 1980-08-26
Abstract: TYPING MACHINE     Abstract of the Disclosure A simplified and compact typing machine to be incorpora-ted in an electronic calculator has a type wheel for presenting different numerals upon rotation.  The  type wheel is moved along a line of digits, i.e., laterally and in the generally horizontal direction, for typing successive numerals and the typing is performed when a hammer head is swung, or the type wheel is rotated, by the movement in one direction of an acting rod of an electromagnetic relay.  The same relay acting rod also laterally moves the type wheel in the direction of the line of digits, on its return motion, by a distance corresponding to the space of one digit.
Patent CA-1049294-A (CA)
Inventor: OBRA BART R
IPC: F16H35/02
Filed: 1976-08-16
Granted: 1979-02-27
Abstract: EPICYCLOIDAL CRANK DRIVE MECHANISM                   ABSTRACT OF THE DISCLOSURE           An epicycloidal crank drive mechanism is disclosed as comprising a support frame mounting a prime mover coupled through a gear reducer to drive a primary rotary member about a first fixed axis on which a sun gear is concentrically disposed.  The primary rotary member carries at least one roller gear that is engaged by the sun gear such that the roller gear rotates about a second axis which is parallel to the fixed first axis and movable with respect to said first axis as the primary rotary gear is driven by the prime mover.  The roller gear has an upper portion on which is mounted a roller adapted to movably engage a slotted section formed in a plate member.  The plate member is driven by the roller for rotation about the first fixed axis.  The plate member carries a crank arm which moves through a motion that varies relative to the velocity of the primary rotary member.          The mechanism is disclosed as an integral part of two types of crank mechanisms. In the first embodiment the crank mechanism functions to actuate a rack for the purpose of positioning loca-ting pine in a transfer mechanism, while in the second embodiment the crank mechanism functions to actuate a transfer bar elevating mechanism.
Patent CA-1072567-A (CA)
Inventor: KOELLENSPERGER FRIEDRICH-GERO
IPC: A61K31/421
Filed: 1976-08-18
Granted: 1980-02-26
Abstract: NEW OXAZOLIDINONES, A PROCESS FOR THEIR PRODUCTION   AND MEDICAMENTS CONTAINING THESE COMPOUNDS       Abstract of the Disclosure The present invention is related to new oxazolidin-2-one derivatives having the general formula   wherein X represents hydroxy or chlorine, Rl represents hydrogen or methyl, R2 represents hydrogen, methyl, phenyl, p-chlorophenyl or allyl, R3 represents hydrogen, methyl or allyl, R4 represents hydrogen, R5 represents hydrogen or methyl, and R6 represents phenyl, with the proviso that R2 and R3 are hydrogen when X represents chlorine.  These compounds have good anticonvulsive, tranquilizing and sleep-inducing properties and are suitable, for example, for the treatment of epilepsy in humans.