baber/WOPTO huggingface dataset:
Patent CA-1105828-A (CA)
Inventor: LAVOISEY YVES
IPC: B26F3/08
Filed: 1979-05-11
Granted: 1981-07-28
Abstract: ABSTRACT         A cutter and cutting method for cutting synthetic resin sheets or ribbons in a manner that avoids the forma-tion of particulates from the cutting operation are dis-closed.  The cutter includes a blade and associated sheet holding structure for creating a sharp bend in the sheet.          The sharp bend creates a zone of high stress in the sheet.          An element for rapidly heating the sheet is brought near the edge of the blade where the fold in the sheet exists.          The localized stress in the fold cause the sheet to rup-ture along the fold after the sheet has been heated to a sufficient extent.
Patent CA-1133527-A (CA)
Title: Electromechanical door operator
Inventor: CATLETT JOHN C
IPC: E05F15/12
Filed: 1979-05-14
Granted: 1982-10-12
Abstract: Abstract: A door operator with a reciprocable rack gear adapted to be actuated in opposite directions by an electric motor driven screw and a coaxial helical compression spring for rotating a drive gear of a door operating spindle in opposite directions for opening and closing a swinging door, the rack gear forming part of a spindle operator having lateral bearings engageable with the ends of the spindle and adapted to be mounted in either of two 180° angularly spaced positions about the axis of the drive screw for rotating the spindle in opposite directions, and the coaxial compression spring being operable via the rack gear for biasing the spindle in both directions to an intermediate position thereof.
Patent CA-1122299-A (CA)
Title: Flaw detecting apparatus
Inventor: YOSHIDA HAJIME
IPC: G01N21/90
Filed: 1979-07-16
Granted: 1982-04-20
Abstract: ABSTRACT OF THE DISCLOSURE       A light source, a light projecting body, a plurality of optical fiber bundles and a sensor is provided.          The light projecting body is provided with a central bore along which the sensor is aligned and a plurality of passages for a respective fiber bundle extending therethrough in communication with the central bore.  The central bore is equal to or larger than the mouth of the bottle to be examined and the apertures terminate in connection with the central bore at a point lying in a circle on the central bore corresponding substantially to the periphery of the mouth of the bottle, the longitudinal direction of the passages are substantially coincident with a tangent to their associated terminal point.
Patent CA-1109233-A (CA)
Inventor: MUNDAY THEODORE F
IPC: B01D53/34
Filed: 1979-07-18
Granted: 1981-09-22
Abstract: ABSTRACT:            REMOVAL OF PHOSPHINE CONTAMINANT FROM CARBON MONOXIDE GAS MIXTURES       A method for removing small concentrations of phos-phine contained in a carbon monoxide gas mixture by prefer-entially oxidizing the phosphine, in which the phosphine is oxidized with air at a temperature of from 500°C to 800°C to form phosphorus pentoxide, which is recovered from the gas mixture preferably as phosphoric acid.
Patent CA-1123050-A (CA)
Title: Load shedding timer for a power  management system
Inventor: TOWNSEND GREG M
IPC: H02J3/14
Filed: 1979-07-20
Granted: 1982-05-04
Abstract: LOAD SHEDDING TIMER FOR A POWER MANAGEMENT SYSTEM            Abstract of the Disclosure A central controller is operable to transmit load shed commands to a plurality of power loads should power consump-tion become excessive.  An improved timer at the load site responds to a shed command to cause the load to be shed for a random time period between predetermined minimum and maxi-mum time limits.  Because the loads return to the system at random times, peak instantaneous demands on the power generating equipment are avoided.
Patent CA-1123026-A (CA)
Inventor: SMETANICK ANDREW
IPC: B60P1/56
Filed: 1979-08-27
Granted: 1982-05-04
Abstract: TANK TRAILER          Abstract of the Disclosure A tank trailer for transporting dry and liquid flowable materials comprising a horizontally disposed substantially cylindri-cal tank having front and rear transverse end walls.  On each end wall is a hopper structure inclining  upwardly and outwardly from the bottom portion of each end wall and having a width consider-ably less than the diameter of the tank. Extending horizontally from the bottom portions of the respective end walls are front and rear platforms.  These platforms each have a width approximately equal to the diameter of the tank and are adapted to carry freight thereon in the manner of a flatbed trailer.
Patent CA-1131224-A (CA)
Title: Process for the preparation of 1,2,3-thiadiazol-5-yl  ureas
Inventor: KRUGER HANS-RUDOLF
IPC: C07D285/06
Filed: 1979-09-11
Granted: 1982-09-07
Abstract: ABSTRACT OF THE DISCLOSURE The invention provides a process for the preparation of 1, 2, 3-thiadiazol-5-yl ureas of the general formula        I   wherein R1 represents a hydrogen atom, or an alkyl radical having 1 to 4 carbon atoms, and R2 respresents a (C1-C4)-alkyl, (C5-C8)-cycloalkyl, methyl-(C5-C8)-cycloalkyl, phenyl, halo-phenyl, (C1-C4)-alkylphenyl, (C1-C4)-alkoxyphenyl, nitrophenyl, trifluoromethylphenyl, pyridyl or pyrimidyl radical, which comprises reacting a compound of the formula                              II   with a compound                               III   in an inert organic solvent.  Preferably tha compound II is formed in tbe reaction mixture.  The process of the invent-ion makes it possible to prepare the ureas in a safe and tech-nically simple manner in virtually quantitative yields and good purity   Previously the preparations required the use of 5-amino-1,2,3-thiadiazole which is not easily obtained and is not completely harmless.
Patent CA-1131163-A (CA)
Title: Heat and grease resistant foam containers comprising  poly (p-methylstryrene)
Inventor: CANTERINO PETER J
IPC: B32B27/30
Filed: 1979-09-17
Granted: 1982-09-07
Abstract: ABSTRACT            There are provided shaped articles, such as trays and food containers, thermoformed from oriented poly (p-methylstyrene) sheet, oriented foamed poly (p-methylstyrene) film with oriented poly (p-methyl-styrene) foam or polystyrene foam, that have been cross-linked by exposure to radiation.  Such articles are resistent to fats and fatty foods contained therein and can be placed in microwave ovens without destruction by hot, melted fats.  The articles can also withstand conventional oven temperatures.     F-9981(9932)
Patent CA-1111693-A (CA)
Inventor: KUETHER CHRISTIAN L
IPC: A61B3/024
Filed: 1979-10-01
Granted: 1981-11-03
Abstract: METHOD OF AND APPARATUS FOR EXAMINATION OF VISUAL FIELDS                          Abstract A microprocessor based instrument designed to retrofit into existing perimeters utilizing the mechanics and stimulus control aspects of the existing perimeter.  The device includes an array board positioned adjacent the perimeter mechanical arm and includes a multiplicity of visual indicators spatially arranged in a composite pattern of testing locations required for one or more ophthalmic testing procedures.  A processor is con-nected to the array board for sequentially actuating the visual indicators in accordance with the testing procedure whereby the operator guides a cursor attached to the perimeter mechanical arm to align with the actuated indicators and control the location of the perimeter test stimulus.  The processor includes means for sensing the position of the cursor, silently presenting a light flash to the patient, and a memory which records the patient's responses.  When the program test sequence has been completed, the missed locations on the array board actuate allowing the examiner to manually record the data on a printed form.  Switch-ing means are provided whereby manual presentation of test stimuli may be provided, the patient's response overridden, and previous trials retested.
Patent CA-1127509-A (CA)
Title: Veneer reinforcing unit and a veneer  reinforcing device using the same
Inventor: KOBA YOSHINORI
IPC: B27L5/02
Filed: 1979-10-25
Granted: 1982-07-13
Abstract: ABSTRACT OF THE DISCLOSURE    A veneer reinforcing unit is provided.  The unit comprises a first cutter which functions as a cutter for trimming a veneer sheet and a second cutter which extends from one or both sides of the blade of said first cutter.          During a trimming action of the first cutter, the second cutter cuts in the veneer sheet at its butt ends newly formed by the first cutter.  The thus obtained veneer sheet is ready for any reinforcing step.  However, if the first and second cutters are additionally provided with a hole to pay out a cord therethrough, the cut formed in the butt end of the veneer sheet firmly hold the cord since the veneer sheet has a tendency to close the cut after the passage of the second cutter, providing a reinforced veneer sheet.
Patent CA-1126211-A (CA)
Inventor: THROP ARNOLD M
IPC: B65D39/00
Filed: 1980-01-23
Granted: 1982-06-22
Abstract: ABSTRACT              CLOSURES FOR CONTAINERS FOR WINE OR WINE-BASED PRODUCTS            A closure for a container of wine or a wine-based product which can replace a conventional cork and provide a good barrier against ingress of oxygen, is in the form of a stopper moulded from an ethylene/vinyl acetate copolymer with a vinyl acetate content of from 10% to 25%, the stopper having a closed-cell foamed core (which may contain water and sulphur dioxide to act as an oxygen scavenger) and a liquid-impervious skin, the degree of foaming being from 45% to 70%.  The preferred VA content is from 10% to 20%. The stopper is preferably coated with a silicone lubricant.
Patent CA-1130613-A (CA)
Inventor: GROSSMANN HORST
IPC: B23B45/16
Filed: 1980-03-07
Granted: 1982-08-31
Abstract: ABSTRACT    A three-speed gear mechanism for a power tool includes a high speed gear and a low speed gear journalled to the output spindle and an intermediate speed gear keyed to the spindle between the high and low speed gears.  The intermediate speed gear serves the dual function of providing a direct torque couple between the idler shaft and spindle in the intermediate speed position and a clutch for transmitting torque from the high and low speed gears to the output spindle in the high and low speed conditions.  In addition, in connection with the application of the present invention to a hammer drill to which it is particularly suited, the present invention includes novel means for accommodating the reciprocatory movement of the output spindle while maintaining proper relative positioning between the high and low speed gears.
Patent CA-1144651-A (CA)
Inventor: SOUMAGNE JOEL
IPC: H04B14/06
Filed: 1980-03-10
Granted: 1983-04-12
Abstract: ECHO DETECTOR PARTICULARLY FOR SPEECH           INTERPOLATION COMMUNICATION SYSTEMS          ABSTRACT OF THE DISCLOSURE         An echo detector which is able to distinguish a speech signal echo on the outgoing channel without reference to the signal received at the incoming channel.  The echo detector is comprised of a circuit for digital differential coding in which the error signal between the incoming signal and the predicted signal is divided by the average value of a certain number of samples of previously received incoming signals, having sign according to the second-last received sample, the quotient obtained in this first division being again divided by the average value of a certain number of such quotients previously computed, the logarithm to base 2 of the average value for the entering signal samples and the logarithm to base 2 of the average value of the quotients, for which only the integer portion is kept, forming for each treated sample two values defining one point of a matrix of points, a first counter counting for a number of sets of two values for which the corresponding points are above or on the secondary diagonal of the matrix, a second counter counting simultaneously the number of sets of values for which the corresponding points are below or on the above-mentioned secondary diagonal, a divider carrying out the quotient of the counts from the first and the second counter, this quotient being compared to a predetermined value to decide, if it is greater than this value, that the entering signal is an echo and not a direct signal.
Patent CA-1118593-A (CA)
Inventor: LARSEN JOHN E
IPC: A43B5/00
Filed: 1980-03-14
Granted: 1982-02-23
Abstract: ATHLETIC SHOE     ABSTRACT OF THE DISCLOSURE     There is disclosed an athletic shoe that finds most efficacy with joggers. The shoe is supplied with a conventional upper and sole. The usual lacing arrangement is provided with the exception that additional lacing means is provided along both sides of the shoe whereby the counter containing heel portion of the shoe is constrained in a manner so that the heel portion of the athletic shoe is brought  inward in the direction of the cen-terline of the shoe to effectively lock the heel portion with the front portion.  The tying arrangement may be a continuation of the usual lacings or may be two separate laces, but in any event essentially locks the front and back of the shoe together.  The lace arrangement extending to the counter or heel portion is positioned whereby the means is substantially parallel to a "spring" ligament as normally located in the foot.
Patent CA-1137490-A (CA)
Inventor: HUELLSTRUNG DIETER
IPC: C07D277/60
Filed: 1980-03-21
Granted: 1982-12-14
Abstract: ABSTRACT OF THE DISCLOSURE     A process for the production of thiazolidine-2-thiones by the reaction of 1 mol of an amino ethanol with from 2 to 2.1 mol of carbon disulphide at from 20 to 200°C and from 0.1 to 5 bar pressure, characterised in that the liquid phase containing amino ethanol is brought into intimate contact with the gaseous phase containing carbon disulphide in a continuous single stage process in at least two consecutive reaction zones, wherein the liquid phase is introduced continuously into the first reaction zone, conveyed toward the last reaction zone and removed downstream of the last reaction zone and wherein the gaseous  phase is introduced continuously into the last reaction zone, conveyed toward the first reaction zone and removed downstream of the first reaction zone. The product obtained can be used as a vulcanisation accelerator for rubber.
Patent CA-1150219-A (CA)
Title: Butterfly valve with an improved  obturation device
Inventor: CHIRON ALAIN
IPC: F16K1/226
Filed: 1980-05-23
Granted: 1983-07-19
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to a butterfly valve having an improved closure plate.  The valve comprises a seat perpendicu-lar to the axis of the valve and an axially displaced butter-fly gate, optionally off-center in relation to its drive axis.          The bearing surface of the butterfly has a shape such that its normals in the regions situated on both sides of the plane of symmetry of the butterfly gate, passing through its axis of rotation, cut across the axis of symmetry of the seat at two distinct points, C1 and C2.
Patent CA-1158076-A (CA)
Inventor: JOYCE JOHN F
IPC: B22F3/22
Filed: 1980-06-23
Granted: 1983-12-06
Abstract: ABSTRACT OF THE DISCLOSURE         A low viscosity composition characterized by pourability comprising a high percentage by weight of particulate inorganic solids.  The composition also includes a dispersant, a crosslink-ing agent, and a binder, with all constituents being dispersed in an aqueous base to define a slurry that may be molded, ex-truded, cast or otherwise shaped into bodies having a variety of configurations and possessing a high degree of physical integrity and green strength.  The particulate inorganic solids may include any metal compounds and mixtures thereof capable of undergoing reduction and sintering to produce high density  articles of such metals and alloys thereof.
Patent CA-1164593-A (CA)
Title: Dispositif d'alimentation d'un poste d'abonne
Inventor: BARS GERARD
IPC: H04B1/58
Filed: 1980-07-16
Granted: 1984-03-27
Abstract: Un dispositif d'alimentation d'un poste d'abonne comportant, outre un transformateur d'isolement galvanique, un circuit de mesure relie a la ligne d'abonne, et un circuit de réception. Le circuit de mesure est relie par un circuit de réglage d'impédance au circuit de réception, le circuit de réception recevant un signal de réception et délivrant un signal au transformateur. Le dispositif d'alimentation comprend en outre un circuit d'émission, relie au circuit de mesure, et recevant le signal de réception ci-haut mentionne à travers un circuit d'équilibrage permettant d'annuler un signal délivré par le circuit d'émission lorsque le poste d'abonne est en réception. Un tel dispositif d'alimentation est applicable au téléphoné.
Patent CA-1171065-A (CA)
Inventor: ZBORIL VACLAV G
IPC: C08F4/64
Filed: 1981-01-06
Granted: 1984-07-17
Abstract: Abstract of the Disclosure A solution process for the preparation of high molecule weight homopolymers of ethylene and copolymers of ethylene and C3 - C12 .alpha.-olefins is disclosed.  The process involves feeding monomer, a particular coordination catalyst and hydrocarbon solvent to a reactor, polymerizing the mono-mer at a  temperature of 105-320°C and recovering the polymer. The catalyst is obtained  by combining solutions of titanium tetrahalide and of organoaluminum compound at a temperature of less than 30°C, heating the resulting admixture to a temperature of 150-300°C for a period of 10 seconds to 10 minutes and combining the thus heat-treated mixture with a solution of an organoaluminum compound.  In an embodiment part of the titanium tetrahalide may be replaced with vanadium oxytrihalide.
Patent CA-1148154-A (CA)
Title: Thiols et leur preparation
Inventor: FARGE DANIEL
IPC: C07D501/24
Filed: 1981-01-16
Granted: 1983-06-14
Abstract: Nouveaux thiols répondant à la formule générale (I) dans laquelle =A- représente un radical hydroxy-2 oxo-1 éthanyle-1 ylidène-2 ou un atome d'azote, R représente un radical alcoyle diversement substitué, leurs sels alcalins ou alcalinoterreux et leur préparation. Ces nouveaux produits sont utiles comme intermédiaires pour la préparation de céphalosporines antibactériennes. <IMG> (I)
Patent CA-1123537-A (CA)
Title: Synthesis and copolymerization of tapered block  macromer mononers
Inventor: DANZIG MORRIS J
IPC: C08F297/04
Filed: 1981-01-23
Granted: 1982-05-11
Abstract: SPECIFICATION             ABSTRACT OF THE DISCLOSURE     The present invention relates to a novel composition of matter comprising: polymerizable "tapered" (or "graded") block macromolecular monomers, each of said polymerizable monomers comprising at least one polymeric segment having at least about 20 uninterrupted recurring monomeric units of at least one anionically polymerized mono-alkenyl-substituted aromatic hydrocarbon and a copolymerized segment or a mono-alkenyl-substituted aromatic hydrocarbon and a conjugated diene; each of said polymerizable monomers terminating with no more than one polymerizable end group containing a moiety selected from the group consisting of vinyl, vinylene, glycol, epoxy, or thio-epoxy groups per mole of said polymerizable monomers, said polymer-izable monomers denoted as preferably having a substantially uniform molecular weight distribution such that their ratio ?w/?n is less than about 1.1, where ?w is the weight average molecular weight of the polymerizable monomers and ?n is the number average molecular weight of the polymerizable monomers, said polymerizable monomers being further characterized as capable of copolymerizing with a second polymerizable compound having a relatively low molecular weight to yield a chemically joined, phase separated thermoplastic graft copolymer, said copolymer-ization occurring through said polymerizable end group, said polymerizable end group thereby occurring as an integral part of the backbone of said chemically joined, phase separated thermo-plastic graft copolymer.  Also disclosed are chemically joined, phase separated thermoplastic graft copolymers prepared from the polymerizable monomers.
Patent CA-1172912-A (CA)
Inventor: ADRIAN FRITZ
IPC: F23D1/00
Filed: 1981-03-25
Granted: 1984-08-21
Abstract: ABSTRACT OF THE DISCLOSURE:     A method for operating a coal dust furnace with reduced formation of nitrogen oxides, comprising the steps of:  blowing into the furnace a first mixture of air and coal dust; blowing into the furnace a first stream of com-bustion air surrounding the first mixture; blowing into the furnace a second mixture of air and coal dust surrounding the first stream of combustion air; and blowing into the furnace a second stream of combustion air surrounding the second mixture.  The coal dust of one of said mixtures com-prises combustion coal dust whose range of grain sizes has an upper limiting grain size, the coal dust of the other mixture being temperature-reducing coal dust whose range of grain sizes lies essentially above the upper limiting grain size of the combustion coal dust.  And, burning the temperature-reducing coal dust in an afterburning area of the furnace.  And a furnace in which this method is carried out.
Patent CA-1154114-A (CA)
Title: Contact assembly incorporating retaining means
Inventor: HUTTER HAROLD G
IPC: H01R24/40
Filed: 1981-05-19
Granted: 1983-09-20
Abstract: CONTACT ASSEMBLY INCORPORATING RETAINING MEANS     ABSTRACT         The present invention relates to a cable connector for use by relatively Inexperienced personnel.  Prior art connectors have utilized crimping and soldering techniques to couple the Inner ele-ment of the cable to a contact in the connector.  Soldering Is time consuming and requires special techniques in order to prevent unsatisfactory joints. Crimp tools are expensive  cumbersome and usually are useful with only one cable size.  The connector field has  therefore  long needed a connector which can be used not only by experienced personnel in the field In a minimum of time without special tools  but also by the public.  The disclosed connector Includes a terminating member disposed within a passageway In the connector and means for securing the inner element to the termlna-ting member.  The securing means Is adapted to freely receive the Inner element upon initial insertion of the cable Into the cable-receiving opening and is responsive to further insertion of the cable Into the cable-receiving opening to secure the Inner element to the terminating member.
Patent CA-1171527-A (CA)
Inventor: PUAR DEEPRAY S
IPC: G11C7/14
Filed: 1981-06-11
Granted: 1984-07-24
Abstract: ABSTRACT: "Semiconductor memory array."     An improved read-only memory arrangement for generating a differential output signal within the memory array (11) itself incorporates a column of reference cell translators (16) and a single reference bit line (13) within the same general area occupied by the memory cell transistors (10) and memory main bit lines (12). Each word line is coupled to the gate of one of the reference cell transistors (16) as well as to the gates of the memory cell transistors (10) lying in the same row. The reference bit line voltage is maintained substantially midway between the high and low potential levels of the main bit lines to produce a differential output voltage for sensing pur-poses.
Patent CA-1183737-A (CA)
Inventor: HANDFORTH JOHN A
IPC: C08L33/00
Filed: 1981-06-17
Granted: 1985-03-12
Abstract: ABSTRACT OF THE DISCLOSURE         PRINTING PROCESS AND PRINTING COMPOSITIONS           Aqueous compositions, suitable for printing, are described which have a high volume solids content. They comprise primary polymer particles and a secondary polymer which provides temporary adherence of the particles to a substrate before the primary polymer is fused by a heating step, in a printing process, in order to cause permanent adherence. There are advantages over the use of organic solvent-based and other aqueous compositions, such as easier cleaning, low toxicity/fire hazard and lower cost.