baber/WOPTO huggingface dataset:
Patent CA-1159940-A (CA)
Inventor: LATTA MILTON R
IPC: H01S3/101
Filed: 1983-02-10
Granted: 1984-01-03
Abstract: LASER BEAM SCANNING SYSTEM                        Abstract In those high speed laser scanning systems, part-icularly those used in printing, employing an acousto-optical modulator driven at two or more carrier fre-quencies for scanning with a plurality of focussed beams simultaneously in order to reduce the required deflection scan rate and to better the rise and fall times of the waveforms, unwanted intermodulation effects arise.  These undesirable intermodulation effects can be reduced or largely eliminated by increasing the difference in the carrier frequencies such that the diffracted beam spacing is increased considerably and utilizing either a scan line interlace scheme or a staggered beam scheme to maintain the required scan line spacing.  In the latter case, the modulator is situated with the direction of propogation of the acousto-waves between zero and 90 degrees to the direction of image pattern scanning.  The angle is made sufficiently large as to make one light beam spot in one scanning line lag a corresponding spot in the adjacent line.  In a further approach the two tech-niques are combined.
Patent CA-1204327-A (CA)
Inventor: LAUDANO RAYMOND J
IPC: A23F5/32
Filed: 1983-03-15
Granted: 1986-05-13
Abstract: ABSTRACT FREEZE-DRIED COFFEE WITH A ROAST AND GROUND APPEARANCE AND A METHOD THEREFOR      A method of producing a freeze-dried coffee having the appearance of roast and ground coffee involves instantly freezing a portion of substantially frozen coffee extract by spraying a cryogenic fluid thereon.  The coffee extract so frozen is ground and freeze-dried in the conventional manner.
Patent CA-1192433-A (CA)
Inventor: ANDERSON THOMAS M
IPC: A21D8/04
Filed: 1983-05-19
Granted: 1985-08-27
Abstract: Abstract of the Disclosure An improved fermented whey having mycostatic activity in which the whey is produced from the fermentation of whey using as a fermenting agent the bacterium Propionibacterium acidi-propionici ?B 3568.
Patent CA-1197287-A (CA)
Inventor: ARMAND MICHEL B
IPC: H01M10/05
Filed: 1983-05-31
Granted: 1985-11-26
Abstract: The invention relates to novel ionic compounds incorporable with polymers of which the monomer units comprise at least one hetero-atom, particularly oxygen or nitrogen, adapted to form bonds of the donor-acceptor type with the cation of the ionic compound, the solid solutions obtained being useful for forming the electrolyte of an electrochemical generator. These ionic compounds are represented by the formula [AlO4(SiR3)4]-M+ in which the groups R are aprotic hydrocarbon radicals, that is to say radicals which are non-donors of protons, and M is an alkali metal.
Patent CA-1196224-A (CA)
Inventor: WILSON THOMAS W
IPC: B60H3/06
Filed: 1983-06-17
Granted: 1985-11-05
Abstract: Abstract Method and apparatus for filtering air admitted to the cab of a vehicle, particularly one which operates in a severe environment, comprises a pre-cleaner unit and a source of low pressure which continuously removes separated particles from the pre-cleaner unit.  The source of low pressure is a venturi which is operated by the flow of air passing through the radiator of the vehicle's engine.
Patent CA-1211859-A (CA)
Inventor: BROWN DAVID F
IPC: H01L23/498
Filed: 1983-08-09
Granted: 1986-09-23
Abstract: ABSTRACT OF THE DISCLOSURE            A circuit unit is described such as performing the function of a chip carrier.  In one example, it is in the form of a thin square of insulating material having contact pads arranged side by side along the four edges of both major surfaces.  The chip is secured substantially centrally of the insulating material and connections are made from it to the contacts on both the major surfaces.  The carrier has an insulating base having contacts extending over its under surface and carrying the chip on its upper surface.  A hollow insulating spacer, matching the outside shape of the base, carrie s further edge contacts and is placed on top of the base.  Electrical connections are made to the contacts on the base and the spacer.  An insulating cover then closes off the hollow interior.  The contacts on the spacer thus provide the contacts on the upper surface of the finished construction.  A single layer construction is also disclosed.  Double-sided chip carriers formed in this way are particularly suited for side-by-side mounting in racked manner, enabling maximum use to be made of the contacts on both of the major surfaces and facilitating flow of cooling air.
Patent CA-1263806-A (CA)
Inventor: EIGENMANN LUDWIG
IPC: E01F9/08
Filed: 1983-08-10
Granted: 1989-12-12
Abstract: A B S T R A C T          This invention concerns a method for making prefabricated, light-reflexing, roadway-marking strips resistant to the scra-ping action of mechanical, snow-clearing equipment - such as snow plows - by the application of protruding elements on the marking strip. These elements can be of different shapes and are positioned on the marking strip so as to promote the snow plow blade to lift over the light reflexing elements, thus preventing, at least partially, the otherwise serious damage that could occur to the said light-reflexing elements. The protruding elements are also designed to provide lifting points for the removal of the marking strip from installed lo-cations on roadway surfaces. The light-reflexing elements can also be mounted onto the pro-truding elements. This invention also concerns the method for manufacturing the protruding elements, the method for the manufacture of the basic strip and the relative finished marking strip.
Patent CA-1246833-A (CA)
Inventor: LIU ANH T
IPC: B01J21/04
Filed: 1983-11-22
Granted: 1988-12-20
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides hydrous aluminium oxide which contains substantially pseudobohmite  has less than 400 p.p.m. of Na2O, less than 2% by weight of sulphate, a peptization degree of less than 60 minutes and a specific surface area of 200 to 400 sq m per gram.  It is produced by allowing  aluminium-sulphate solution and sodium-aluminate solution to flow simultaneously into a water reciever such that during the precipitation a constant pH value of  <5 is maintained.  The pH value is then shifted into the alkaline range by further addition of sodium-aluminate liquor. The precipitation product is aged, filtered off, washed and dried.  The hydrous aluminium oxide can be used as a catalyst.
Patent CA-1226861-A (CA)
Inventor: GIRIJAVALLABHAN VIYYOOR M
IPC: C07D233/54
Filed: 1983-11-24
Granted: 1987-09-15
Abstract: A B S T R A C T          Penems of the formul a I                                        I in which R is hydrogen or an organic radical, G is hydroxyloweralkyl and X is hydrogen, a pharmaceutically acceptable salt forming group or a metabolisable ester group, or a protecting group are disclosed.            Process for their preparation involves reacting a compound II                                 II     in which R1 and R2 are protected carboxy groups and Met is a thiophilic metal with a thiocarbonyl III                      S=C(Y)2                 III   in which Y is a leaving group, followed by removal of one of R1 and R2 to give a compound of formula I in which  R is H together with its thione tautomer. Organic groups R can be introduced into the so-obtained compound by known methods.     Alternatively the compound of formula I in which R is hydrogen can be made by intra-molecular cyclisation of the compound IV.                         IV     G,Y and R2 being as previously defined.   Various novel penems are also disclosed as well as three  other processes for their preparation.
Patent CA-1210687-A (CA)
Inventor: SHU WINSTON R
IPC: E21B43/24
Filed: 1983-12-06
Granted: 1986-09-02
Abstract: VISCOUS OIL RECOVERY METHOD          ABSTRACT    A subterranean, viscous oil-containing formation is penetrated by at least one injection well extending to the lower portion thereof.          The lower portion of the injection well is characterized by terminating in a cavity in the formation, terminating horizontally or extending through and being in fluid communication with a horizontal fracture through the formation.  At least one spaced-apart production well penetrates the formation in fluid communication with the upper two-thirds or less of the formation.  A slug of steam is injected into the injection well and fluids including oil are recovered from the formation via the production well.  The injection well is then shut-in for a predetermined period of time while continuing production of oil.          Thereafter, a predetermined amount of hot water or low quality steam is injected through the injection well and production is continued until there is an unfavorable amount of water or steam in the fluids recovered.
Patent CA-1216926-A (CA)
Title: Method and apparatus for controlling cableless  seismic digital field recorders having seismic data  processing capabilities
Inventor: BOGEY TERRY L
IPC: G01V1/24
Filed: 1983-12-15
Granted: 1987-01-20
Abstract: ABSTRACT OF THE DISCLOSURE         A method and apparatus are disclosed for auto-matically controlling the operational modes of the recorders of a cableless seismic digital recording system from a control point.  The recorders can be applied not only to situations where a high energy impulsive seismic source, such as dynamite, is used but also to situations where seismic-trace data generated by a low energy surface seismic source, such as a vibrator, is to be recorded which requires that such seismic-trace data be vertically stacked (summed) by the recorders before being recorded due to the limited capacity of magnetic tape cartridges.          The seismic-trace data is preferably weighted before being vertically stacked for improving the signal-to-noise ratio.  The operational modes of the recorders include "shooter's box" routines, dynamite (non-stacking) data processing, and stacking data processing with immediate or delayed recording.  Selection among these operational modes is preferably made via coded radio signals trans-mitted from the control point.  The disclosed method and apparatus automatically and efficiently select the opera-tional modes, thereby eliminating potential operator error and increasing the rate at which seismic-trace data can be acquired in the stacking data processing mode.
Patent CA-1212674-A (CA)
Inventor: TOTH EDIT
IPC: A61K31/495
Filed: 1983-12-23
Granted: 1986-10-14
Abstract: Abstract The invention relates to new aminoethoxy-benzylalcohol derivatives of the formula (I)   wherein R1    is hydrogen, halogen, trihalomethyl, alkyl having from one to 4 carbon atoms or alkoxy having from one to 4 carbon atoms; R2    is halogen, trihalomethyl, alkyl having from one to 4 carbon atoms or alkoxy having from one to 4 carbon atoms; R3 and R4 stand for methyl or together with the adjacent nitrogen form an up to 8-membered ring optionally containing oxygen, and acid addition or quaternary ammonium salts thereof.         According to another aspect of the invention there are provided processes for the preparation of these compounds.         The compounds of formula (1) are pharmacologi-cally  active, thus show enzyme-inducing effect. The pharmaceutial compositions containing them as active ingredient are also within the scope of the invention.
Patent CA-1219892-A (CA)
Title: Electrical connection system for switches
Inventor: O'HARA FRANK J
IPC: H02K15/02
Filed: 1984-02-14
Granted: 1987-03-31
Abstract: ABSTRACT OF THE DISCLOSURE    A switch has a body mounted directly on the rear bearing boss of the integral web portion of a molded plastic field case for a power tool or other motor-driven device.  The switch has a pair of spaced contacts engaging the respective rearward end portions of a complementary pair of contact elements carried by the web portion of the field case. The respective forward end portions of the contact elements are connected to respective terminals on the field.
Patent CA-1241197-A (CA)
Inventor: FRANK ROBERT G
IPC: C03B23/03
Filed: 1984-03-19
Granted: 1988-08-30
Abstract: ABSTRACT     Bending a glass sheet to a complicated shape that comprises one portion bent sharply relative to a main portion of the sheet involving the use of a vacuum holder, an auxiliary shaping rail and means to correlate the movement of the shaping rail with that of the glass sheet during a bending cycle to insure that the glass sheet is clear of the auxiliary shaping rail except for such time in the glass sheet bending cycle that requires the auxiliary shaping rail to engage the glass sheet portion to be sharply bent against the corresponding portion of the vacuum holder.          Another feature incorporated in a preferred embodiment of the present invention facilitates ready removal of glass fragments whenever a flawed glass sheet fractures at or beyond a shaping station outside a furnace where the glass sheet is heated to its deformation temperature.
Patent CA-1228693-A (CA)
Inventor: BEKKER VLADIMIR
IPC: C08L25/08
Filed: 1984-03-20
Granted: 1987-10-27
Abstract: POLYVINYL HALIDE POLYMER COMPOSITION AND          SHAPED ARTICLES PRODUCED THEREFROM             Abstract of the Disclosure A polymer composition adapted for use in producing polyvinyl halide polymer products comprising a blend of a vinyl halide polymer and a particulate terpolymer having a molecular weight of at least about 100,000 and a glass transition temperature of at least about 50°C.  The terpolymer comprises repeating units derived from an olefin, a diester of an addition polymerizable unsaturated dicarboxylic acid, and a solubilizing monomer which promotes compatibility of the terpolymer with the vinyl halide polymer.  A shaped plastic article produced from this composition, and method of producing the shaped article are also disclosed.
Patent CA-1184264-A (CA)
Inventor: GORMAN ANTHONY G
IPC: H01R4/24
Filed: 1984-04-11
Granted: 1985-03-19
Abstract: ABSTRACT OF THE DISCLOSURE:          A connector which can make electrical connection to the wires in a highway cable without cutting the cable is formed with two hinged members which can be closed together to make the connection.  On closing, conducting needles penetrate the insulation of the cable to contact the wire core.  For a co-axial cable, the needle for the central core is insulated except at the tip.
Patent CA-1214604-A (CA)
Title: Baignoire a porte pour handicapes moteurs
Inventor: LEICHLE ROLAND G
IPC: A47K3/00
Filed: 1984-04-24
Granted: 1986-12-02
Abstract: A B R E G E           L'invention concerne une baignoire à porte pour handicapés moteurs comportant une porte latérale pour fermer et dégager une échancrure ou baie d'accès à la baignoire.  La baignoire selon l'invention est caractérisée par le fait que la largeur de l'échancrure, mesurée horizontalement, va en croissant de façon con-tinue du bas vers le haut, que le contour de l'échan-crure sur la paroi du corps de la baignoire présente une feuillure tournée vers l'intérieur de la baignoire, et que le contour coopérant de la porte présente une feuillure complémentaire tournée vers l'extérieur de la baignoire, un joint d'étanchéité étant prévu entre les deux feuillures.  La porte peut être ouverte, à partir de sa position inférieure fermée, par au moins un mouvement dirigé vers le haut pour faire cesser la coopération des deux feuillures.
Patent CA-1219953-A (CA)
Inventor: LYON RICHARD F
IPC: G10L11/00
Filed: 1984-04-25
Granted: 1987-03-31
Abstract: METHOD AND APPARATUS FOR SIMULATING    AURAL RESPONSE INFORMATION                 ABSTRACT OF THE DISCLOSURE         Speech and like signals are analyzed based on a model of the function of the human hearing system.   The model of the inner ear is expressed as signal pro-cessing operations which map acoustic signals into neural representations.  Specifically, a high order transfer function is modeled as a cascade/parallel filterbank network of simple linear, time-invariant second-order filter sections.  Signal transduction and compression are based on a half-wave rectification with a non-linearly coupled, variable time constant automatic gain control network.  The result is a simple device which simulates the complex signal transfer function associated with the human ear.  The invention lends itself to implementation in digital circuitry for real-time or near real-time processing of speech and other sounds.
Patent CA-1237004-A (CA)
Inventor: RAWE WILLIAM D
IPC: B25B17/00
Filed: 1984-05-07
Granted: 1988-05-24
Abstract: POWERED PIPE WRENCH TYPE TOOL             Abstract A lightweight, portable, powered pipe wrench type tool (10) for loosening or tightening threaded pipe members includes a pair of wrenches (16) and (18) having jaws (26) and (30) and elongated handles (22). Each handle (22) includes an inward section (46) and an outward section (48) interconnected by a joint assembly (50) whereby the handle sections may be positioned in selective, angular orientations relative to each other. A linear actuator (24) that laterally spans handle outward sections (48) is extendable to rotate the wrenches (16) and (18) relative to each other to loosen or tighten pipe members depending on the orientation of the wrenches relative to the pipe members.
Patent CA-1223817-A (CA)
Inventor: BAGNALL BRIAN G
IPC: A61K9/22
Filed: 1984-06-22
Granted: 1987-07-07
Abstract: DELAYED ACTION ASSEMBLY     Abstract of the Disclosure A device for effecting the delayed release of an active ingredient comprises a container and, within, a dispersible unit of ingredient, a removable closure and a control means for removal of said closure at a designated time to release the active ingredient.  Several assemblies are combined to control the administration of veterinary medicaments to ruminant animals as a specific application of the invention.
Patent CA-1228634-A (CA)
Inventor: FRITZ GAROLD F
IPC: G03G15/09
Filed: 1984-06-26
Granted: 1987-10-27
Abstract: IMPROVED ELECTROGRAPHIC DEVELOPMENT    METHOD, APPARATUS AND SYSTEM           ABSTRACT Improved electrographic development is obtained in the presence of a development electrode field by predeterminedly rotating both the core and shell of a magnetic brush applicator to supply developer, of the kind comprising small particle, hard-magnetic carrier and electrically insulative toner, to an electrostatic imaging member which moves past a development station with predetermined linear velocity.  In one preferred embodiment the core and shell are predeterminedly rotated so that the shell moves through the development zone at a rate pre-venting toner that is plated-out on the shell from affecting image development and so that the developer moves co-currently with the imaging member at a generally equal linear velocity.
Patent CA-1225951-A (CA)
Inventor: WATKISS PHILIP J
IPC: G03F7/06
Filed: 1984-07-10
Granted: 1987-08-25
Abstract: IMPROVEMENTS IN OR RELATING TO LITHOGRAPHIC                    PRINTING PLATES Abstract A lithographic printing plate having metallic silver image areas is treated with a proteolytic enzyme and an oleophilising compound to improve ink receptivity.
Patent CA-1261241-A (CA)
Title: Multi-layered safety glass
Inventor: BRAVET JEAN-LOUIS
IPC: B32B17/10
Filed: 1984-07-11
Granted: 1989-09-26
Abstract: 1. A laminated pane comprising only a glass sheet and a layer of transparent plastics material, characterised in that the layer of transparent plastics material has properties of absorption of energy and interior protection defined by a scratch resistance greater than 20 g measured with the Erichsen type 413 apparatus and an abrasion resistance according to European Standard R43 such that the haze difference is less than 4% and at a thickness of about 0.5 mm a flow stress sigma y at -20 degrees C not exceeding 3 daN/mm**2 , a rupture stress sigma R at +20 degrees C of at least 2 daN/mm**2 , a lengthening at rupture epsilon R at +20 degrees C from 250% to 500%, and a tear resistance Ra at +20 degrees C of at least 9 daN/mm**2 , and in that the layer of plastics material is formed essentially of a polyurethane obtained by continuous reactive casting on a flat horizontal support of a reaction mixture of an isocyanate component and a polyol component, the isocyanate component comprising at least one aliphatic or cycloaliphatic di-isocyanate or a di-isocyanate prepolymer, this component having a viscosity measured at +40 degrees C less than about 5 Pas, the isocyanate component containing urea functions, the content of urea being up to 10% of the total weight of isocyanate component, the urea content preferably being from 5 to 7%, and the polyol component comprising at least one long difunctional polyol of molecular weight from 500 to 4000 and at least one short polyol as a chain lengthening agent, the ratio of isocyanate group equivalents to hydroxyl group equivalents is about 1, and the proportions between the different polyols are selected so that the number of hydroxyl group equivalents due to the short diol represents from 20 to 70% of the total hydroxyl groups.
Patent CA-1208914-A (CA)
Inventor: KRUMWIEDE JOHN F
IPC: C03B5/193
Filed: 1984-09-17
Granted: 1986-08-05
Abstract: Abstract Of The Disclosure In a glass melting furnace, the beneficial effects of passing molten glass streams through the intensified heating at the surface of the "spring zone" are enhanced by the use of bubblers.  In one aspect, the rate of bubbling is greater near a side wall of the furnace than in the center immediately upstream of the spring zone so as to direct side portions of the throughput stream into the spring zone.  In another aspect of the invention, the rising currents of the spring zone are enhanced by bubbling a stream entering the spring zone at a first elevation and then bubbling the same stream portion at a higher elevation.
Patent CA-1260353-A (CA)
Inventor: NOIR DOMINIQUE
IPC: A61M11/06
Filed: 1984-10-16
Granted: 1989-09-26
Abstract: Cet appareil comporte une enceinte destinée à contenir de l'eau dans laquelle plongent deux électrodes connectées à une source de courant alternatif (S). Un conduit se terminant par une buse relie le sommet de cette enceinte à un venturi connecté en amont avec l'atmosphère et en aval avec un masque d'inhalation de manière à former un mélange air-vapeur d'eau à température contrôlée.
Patent CA-1223281-A (CA)
Inventor: UNGER EBERHART
IPC: E21D9/10
Filed: 1984-10-23
Granted: 1987-06-23
Abstract: ABSTRACT OF THE DISCLOSURE    A mining machine is disclosed for winning mineral material in a mine working.  The mining machine has a base frame, a conveyor mounted on the base frame, and advance means for advancing the base frame in a given direction.          A guide is mounted on the base frame, and extends transversely with respect to said direction.  A cutting machine is mounted on the guide for movement therealong.          The base frame is provided with two transversely-spaced bracing and directional control units,  each of which comprises first and second hydraulic props.  The first hydraulic prop of each unit is extensible towards the roof of the mine working, and the second hydraulic prop of each unit is extensible, independently of the associated first hydraulic prop, towards the floor of the mine working.