baber/WOPTO huggingface dataset:
Patent CA-1157144-A (CA)
Title: System for transmitting information between an emitting centre and receiving stations
Inventor: GUILLOU LOUIS C
IPC: H04N7/08
Filed: 1980-01-30
Granted: 1983-11-15
Abstract: ABSTRACT OF THE DISCLOSURE         A system for transmitting information between an emitting center and receiving stations, comprising: a subscription administration center generating a plu-rality of subscriber's keys Ci changing randomly at relatively long intervals of the order of a month; in the emitting center: a generator of an operating key K changing randomly at relatively short intervals of the order of a few minutes; a circuit for forming messages Mi obtained from said subscriber's keys Ci and from the operating key K by means of an algorithm, all the mes-mages Mi then being directed towards the emitting center; and automatic encryption means using the ope-rating key K, in each receiving station: a subscription holder on which is recorded a signal corresponding to at least one of the subscriber's keys Ci; a circuit for restoring the operating key receiving the messages Mi and the subscriber's key Ci, this circuit working out an algorithm for restoring the signal corresponding to the operating key K used in the emitting center; an au-tomatic decryption means; and at least one charging station capable of temporarily receiving the subscrip-tion holders and permanently recording one of the sub-scribers's key Ci thereon.
Patent CA-1150281-A (CA)
Inventor: KRAEMER WOLFGANG
IPC: A01N43/50
Filed: 1980-05-09
Granted: 1983-07-19
Abstract: ABSTRACT OF THE DISCLOSURE 1-Phenoxy-1-imidazol-1-yl-4-fluoro-butane derivatives of the formula   in which B is -CO- or - CH(OH-, X is hydrogen or fluorine, Z each independently is halogen, alkyl, nitro, cyano, alkoxy-carbonyl or optionally substituted phenyl, and n is 0, 1, 2 or 3, or an acid or metal salt adduct thereof which possess fungicidal properties.
Patent CA-1156385-A (CA)
Inventor: HENDERSON JOHN G N
IPC: H03J5/00
Filed: 1980-05-23
Granted: 1983-11-01
Abstract: RCA 73,145 ABSTRACT OF THE DISCLOSURE          In a tuning system for generating a tuning voltage for tuning a television receiver, channel identification apparatus includes a memory for storing binary signals repre-senting boundary voltages having magnitudes corresponding to magnitudes  of the tuning voltage between tuning voltage ranges for respective adjacent channels.  As the memory locations are addressed, the boundary voltages are compared to the tuning voltages.  Control apparatus causes the memory location associated with the next boundary voltage to be addressed and causes channel number apparatus to generate binary signals representing the next channel number when the magnitude of a predetermined one of the boundary voltage associated with an addressed one of the memory locations and the tuning voltage exceeds the magnitude of the other one. Display apparatus displays the channel number represented by the binary signals generated by the channel number means.
Patent CA-1116166-A (CA)
Inventor: ERDMAN JOHN P
IPC: C08K5/17
Filed: 1980-05-27
Granted: 1982-01-12
Abstract: ABSTRACT Hexafluorotriallylisocyanurate is prepared by reacting 1,1-difluoro-1,3-dibromopropane with cyanuric acid in the presence of one or more alkali or alkali earth metal inorganic bases or with alkali metal salts of cyanuric acid.
Patent CA-1140643-A (CA)
Title: Capacitor construction
Inventor: SCHROEDER WALTER W
IPC: H01G4/224
Filed: 1980-07-09
Granted: 1983-02-01
Abstract: CAPACITOR CONSTRUCTION                 ABSTRACT OF THE DISCLOSURE           A capacitor is housed in two open-mouth metal cans which are joined in a non-overlapping arrangement by means of an insulative bushing that is tapered so as to provide a self-locking closure when mated with the cans. The capacitance section is electrically connected inter-nally to the opposite ends of the housing.
Patent CA-1153662-A (CA)
Inventor: SAMPSON RAYMOND D
IPC: A24F19/14
Filed: 1980-08-21
Granted: 1983-09-13
Abstract: ABSTRACTS OF THE DISCLOSURE              This invention is directed to a cigarette-extinguishing ashtray which is of simple construction, simple to use, and readily cleanable.  The cigarette-extinguishing ashtray comprises:               (a)  a top portion having therein at least one snuff-hole of a diameter slightly larger than the diameter of a regular cigarette, and an extinguished cigarette-butt receiving area;               (b)  a base portion closing off the bottom of the snuff-hole in the top portion and rotatably attached to the top portion (a) so that the base portion can be rotated relative to the top portion;               (c)  at least one hole in the base portion (b) which can be rotated into alignment position at the base of the snuff-hole in the top portion (a) by rotating the base portion relative to the top portion (a);      (d)  a groove around the circumference of the base of the snuff-hole of the upper portion adjacent the base portion (b); and (e)  a raised rim around the circumference of the alignment hole in the base portion (b) which rim corresponds in dimension with and fits within the circumferentia groove (d) of the top portion when the hole in the base portion (b) is rotated into a position of alignment with the snuff-hole.
Patent CA-1128310-A (CA)
Inventor: FERREE WILLIAM I JR
IPC: C09D11/00
Filed: 1980-08-27
Granted: 1982-07-27
Abstract: THERMALLY ACTIVATED INK AND TRANSFER METHOD          ABSTRACT OF THE INVENTION         A thermally activated ink and a thermally activated transfer ribbon, comprising a polymer, oil and oil-gelling agent, are provided.  The ink may form a coating on a substrate, such as a ribbon, for use in conjunction with a thermal printer or a nonimpact typewriter, for example, for generating characters on ordinary paper.  A method is also provided for generating characters on ordinary paper with a thermal print head.
Patent CA-1156861-A (CA)
Inventor: ARPAIO JERRY
IPC: A61C3/02
Filed: 1980-09-25
Granted: 1983-11-15
Abstract: ABSTRACT OF THE DISCLOSURE      A dental reamer adapted for removing damaged nerve tissue and dead or injured cell material from the root canal of a tooth is formed with a tapered shank with at least two oppositely disposed continuous helical flutes formed along at least a part of its shank to define two oppositely disposed continuous helical upwardly facing cutting edges.
Patent CA-1149239-A (CA)
Inventor: SLIWKA WOLFGANG
IPC: B01J13/02
Filed: 1980-10-07
Granted: 1983-07-05
Abstract: O.Z. 0050/034077 Abstract of the Disclosure:  In a process for the pre-paration of microcapsules based on a melamine-formaldehyde resin, in which the microcapsules are obtained by con-densing a melamine-formaldehyde precondensate, its C1-C4-alkyl ethers, or mixtures thereof, in water in which the material forming the capsule core is dispersed, at a pH of from 3 to 6.5 and at from 20 to 100°C, the improvement that the water contains a homopolymer or copolymer which possesses sulfonic acid groups but is devoid of phenyl or sulfophenyl groups and has a K value of from 100 to 170 or a viscosity of from 200 to 5,000 mPa.s (shearing gradient 489 s-1;  20% strength solution at 25°C), and that the melamine-formaldehyde preconden-sate is added continuously, or in portions, in step with the rate of condensation.        The process gives individual capsules which are highly impermeable.     The capsules are exceptionally useful for the production of pressure-sensitive record-ing materials.
Patent CA-1149972-A (CA)
Inventor: PHELPS MICHAEL E
IPC: G01T1/29
Filed: 1980-10-17
Granted: 1983-07-12
Abstract: ABSTRACT OF THE DISCLOSURE A data acquisition system for incorporation in a posi-tron emission tomograph system to allow the removal of random coincidence events on a true "line-of response" basis with sub-stantially "dead-timeless" operation.  The positron emission to-mograph provides sectional images on the human body following the administration of radiopharmaceuticals labeled with positron emitting radionuclides.
Patent CA-1140656-A (CA)
Inventor: MITCHELL WAYNE R
IPC: E01C23/16
Filed: 1980-10-31
Granted: 1983-02-01
Abstract: AUTOMATIC VOLUME CONTROL SYSTEM                 ABSTRACT OF THE DISCLOSURE        An automatic volume control system for controlling the rate at which fluid, such as paint, is sprayed from spray guns on a mobile vehicle as a function of vehicle speed.  The device permits paint lines to be maintained at a uniform thickness independently of the vehicle speed.  A tachometer generator generates a voltage proportional to the vehicle road speed which voltage controls the opening of an adjustable hydraulic valve.  Hydraulic fluid passing through the hydraulic valve drives a hydraulic generator which in turn drives a spray gun system. The voltage from the tachometer generator thereby causes the hydraulic fluid to drive the hydraulic motor and paint pump at a rate which is proportional to the vehicle road speed.  The hydraulic fluid is suitably pumped through the hydraulic valve to the hydraulic motor by a hydraulic pump driven by the power take-off of the vehicle.  By using a flow divider valve connected between the hydraulic pump and the hydraulic motor, two separate and parallel independently controllable painting systems may be provided.  An intermittent line mechanism powered by the vehicle road wheels, is connected to the spray guns and to hydraulic motor bypass valves in order to provide line patterns which are independent of vehicle road speed.
Patent CA-1121757-A (CA)
Title: Capteur de mesure de la protection electrochimique et   de la possibilite de corrosion des structures  metalliques
Inventor: POLAK JOSEF
IPC: C23F13/00
Filed: 1980-11-21
Granted: 1982-04-13
Abstract: Capteur de mesure de la protection électrochimique et de la possibilité de corrosion des structures métalliques placées dans un électrolyte et en présence d'un champ électrique. Ce capteur est constitué d'au moins une électrode métallique auxiliaire en même métal que la structure menacée de corrosion et d'une électrode de référence stable. Capteur applicable au contrôle de protection électrochimique anticorrosive des structures enterrées dans un champ électrique, telles que pipe-lines, réservoirs.
Patent CA-1159163-A (CA)
Inventor: FORD DAVID N
IPC: C01B/
Filed: 1980-12-17
Granted: 1983-12-20
Abstract: ABSTRACT          Use of Phosphonic Acids as Collecting Agents in the Froth Flotation of Ores The invention concerns a process for concentra-ting mineral ores by froth flotation using as collecting agent a benzylphosphonic acid of formula I                 I   wherein R1 is hydrogen, C1 to C6 alkyl, C1 to C6 halo-alkyl, C1 to C6 alkoxy or halogen, R2  is hydrogen, hydroxy, halogen or C1 to C6 alkyl and R3  is hydrogen or C1 to C6 alkyl, or R2 and R3 together form a methylene group.        The process may be used for the flotation of a range of ores including ores of the metals tin, tungsten, and titanium, and is particularly useful in the flotation of the tin oxide ore cassiterite.  Benzylphosphonic acid and .alpha.-hydroxybenzylphosphonic acid are particularly use-ful as collecting agents in the froth flotation of cassiterite.
Patent CA-1139594-A (CA)
Inventor: SHIBATA AKIRA
IPC: H01H11/06
Filed: 1980-12-24
Granted: 1983-01-18
Abstract: Abstract of Disclosure Immediately after a composite electric contact is made from wires by cold welding and in a manner as it has been cold welded, it is brought onto a supporting metal and subjec-ted to pressure and resistance heat exerted by a pair of electrodes whereby -the contact and the supporting metal are spot welded in situ without adversely affecting the supporting metal such as warping thereof and whereby cold welded abutting ends of the contact are released from stress which is produced by cold welding and the contact is annealed in whole.
Patent CA-1158174-A (CA)
Inventor: MAY CARL J JR
IPC: H04J3/17
Filed: 1981-01-13
Granted: 1983-12-06
Abstract: MAY, C. J. JR. 16 MULTIPLE VARIABLE THRESHOLD                     SPEECH DETECTOR        Abstract of the Disclosure A speech detector uses a signal classifier to identify portions of a representation of the average magnitude of a group of signal samples indicative of either speech or noise.  A controller in the signal classifier follows a four state sequence using appropriate time constants for signal measures in a variety of signal conditions in defining the speech and noise portions of the representation to provide adaptively variable decision levels.  A speech definer compares the representation to a first decision level and the signal samples to a higher decision level to indicate the occurrence of speech signal activity when either decision level is exceeded.  In a two way transmission arrangement, a receive trunk speech detector uses a stretcher to prevent adaption of the transmit speech detector thresholds when echo signals are present.
Patent CA-1166186-A (CA)
Inventor: SAITO KAZUHISA
IPC: D06M101/00
Filed: 1981-03-04
Granted: 1984-04-24
Abstract: ABSTRACT OF THE DISCLOSURE method  for  producing  carbon fibers exhibiting excellent  adhesive  properties  to  resins and having high strength and heat-oxidation resistance, comprising electri-cally treating high strength carbon  fiber  in  an  aqueous solution of a sulfuric acid salt under conditions such that the current density is from about 0.05 to 0.5 A/m2 and  the product of current density, voltage, and processing time is from about 0.02 to 8 A-V-min/m2, while continuously  moving the carbon fiber as an anode in the aqueous solution.
Patent CA-1157765-A (CA)
Inventor: BOURQUE MICHEL
IPC: D06F61/04
Filed: 1981-04-22
Granted: 1983-11-29
Abstract: IMPROVED SMALL PIECE STACKER BLOWDOWN MEANS              AND CATCH MEMBER                              ABSTRACT    In a small piece stacker and counter for use in association with laundry ironing machines comprising   conveyor belt means having space defined between two belts with passage therethrough of the piece, an improved single pipe blowdown means having single or dual sets of apertures adapted to blow down a piece through the spaced-apart conveyor belts, and improved conveyor belt type catch means for the catching of the piece at a central por-tion thereof.
Patent CA-1184922-A (CA)
Title: Thiocarbamoylalkoxyphenylureas
Inventor: BERRER DAGMAR
IPC: C07C325/00
Filed: 1981-08-17
Granted: 1985-04-02
Abstract: Abstract of the Disclosure The invention relates to thiocarbamoylalkoxyphenylureas of the general formula I                                           (I) wherein X   is hydrogen, halogen, C1-C2haloalkoxy or C1-C2haloalkyl, Y   is a thiocarbamoylalkyl group of the formula   n   is 0, 1 or 2, R1  is hydrogen, C1-C4alkyl, C2-C4alkenyl, C2-C4alkynyl or C1-C4alkoxy, R2  is hydrogen, C1-C4alkyl or C2-C4alkenyl, R3, R4 and R6, each independently of the other, are hydrogen or C1-C4alkyl, R5  is hydrogen, C1-C4alkyl, C1-C4alkoxy or C2-C5alkoxyalkl, R7  is hydrogen, C1-C4alkyl, C2-C4alkenyl, C2-C4alkynyl, C1-C4alkoxy or C1-C2-alkylphenyl, and R8  is hydrogen or C1-C4alkyl, whilst R7 and R8, together with the nitrogen atom to which they are attached, can form a 5- or 6-membered heterocycli  ring system which can be interrupted by a further oxygen atom.  These compounds have excellent selective herbicidal and plant growth inhibiting properties.
Patent CA-1196926-A (CA)
Inventor: WESSON JOHN P
IPC: C09D5/14
Filed: 1981-09-11
Granted: 1985-11-19
Abstract: ABSTRACT OF THE DISCLOSURE Pentachlorophenyl 3-(trimethoxysilyl)-propyl ether and its use as a mildewcide in latex paints.
Patent CA-1170341-A (CA)
Inventor: TAKEMOTO IWAO
IPC: H01L27/14
Filed: 1981-12-14
Granted: 1984-07-03
Abstract: Abstract:     A solid-state imaging device has picture elements each of which is composed of a photoelectric conversion element and a MOS transistor as a switching element.  The picture elements are arranged in the form of a matrix.  A scanning mechanism scans the picture elements to sequentially read out photoelectric conversion signals.  The device is charac-terized in that at least a high-impurity-concentration diffusion layer serving as an output terminal of the MOS transistor constituting each picture element is formed on an insulator layer for isolating the elements.  The result is avoidance of "smear", i.e., poor picture quality, and improved sensitivity.
Patent CA-1181810-A (CA)
Inventor: THOMPSON DAVID
IPC: G01R23/15
Filed: 1982-01-26
Granted: 1985-01-29
Abstract: APPARATUS FOR TESTING THE LINEARITY           OF A FREQUENCY MODULATED OSCILLATOR by David Thompson Abstract of Disclosure A linearity test signal generator alternately provides a burst of a modulation frequency and no modulation to the modulation input of the frequency modulator oscillator (FMO) under test.  A programmable divider is connected to the output of said frequency modulated oscillator to produce a binary output signal which is applied to the automatic frequency control circuit. This circuit in turn develops a DC control signal which is applied to the control input of said frequency modulated oscillator to maintain the average oscillator frequency constant.  This DC control voltage gives an indication of the shift in the average free running frequency of the oscillator while being modulated, caused by oscillator non-linearity.  The voltage is first sampled when the oscillator is unmodulated to produce a reference voltage which is stored and then compared to a sample of the DC control voltage when the oscillator is being modulated.  The difference between the two voltage samples is used to generate an error signal proportional to the amplitude and the sign of the difference.  A zero center meter is employed to indicate the magnitude of the error and to permit rapid adjustment to obtain a minimum error indication.
Patent CA-1184248-A (CA)
Inventor: O'TOOLE JAMES E
IPC: G11C29/50
Filed: 1982-02-01
Granted: 1985-03-19
Abstract: SEMICONDUCTOR MEMORY CELL MARGIN TEST CIRCUIT     ABSTRACT OF THE DISCLOSURE      A margin test circuit (10) is provided for a semiconductor memory circuit having a plurality of memory cells (16).  Each of the memory cells (16) in one row of cells (16) are interconnected to a word line (14). The margin test circuit (10) further includes a row decoder/driver (12) which receives a variable voltage (Vcc*) for changing the signal level stored within a memory cell (16) to thereby determine the marginal voltage level at which the memory cell (16) will maintain storage of a signal level.  The variable voltage (Vcc*) is the semiconductor memory circuit main supply source (Vcc) in normal operation but can be forced to a different voltage during the margin test.
Patent CA-1197917-A (CA)
Inventor: TAGUCHI TOSHIMICHI
IPC: H01H13/712
Filed: 1982-02-09
Granted: 1985-12-10
Abstract: ABSTRACT OF THE DISCLOSURE           A pressure sensitive electrical signal input device for use in a microwave oven or other household ap-pliance for introducing a setting into the appliance through manual momentary single-contact actuation includes an actuator member, composed of a generally flat deformable plate having elongate actuator regions on a first surface thereof and carrying on the opposite surface thereof first electrodes disposed opposite the actuator sections, and a substrate disposed in conjunction with the electrode side of the actuator member and having second electrodes respectively corresponding to the first electrodes and connected in series.  One of the first electrodes, may be depressed into electrical contact with a connecting one of the second electrodes by pressure on the actuator region.  Which of the electrodes are in contact is then sensed, by determining the electrical resistance of the series connection of the second electrodes between one end thereof and the depressed first electrodes, to provide a corresponding electrical input signal.
Patent CA-1166537-A (CA)
Inventor: COHEN EDGAR C
IPC: A61M5/46
Filed: 1982-02-22
Granted: 1984-05-01
Abstract: Abstract:    A medicament is injected through a nozzle and into the tissue of a patient by compressed air.  The depth of penetra-tion of the medicament is regulated by selectively varying the pressure of the air.  For this purpose there is disclosed an injector having a vacuum chamber and a pressurized air chamber. A nozzle has a passageway adapted for communication with the medicament and for having the medicament expressed there-through and into the tissue upon application of pressurized air to the air chamber.  The tissue is immobilized by apply-ing a vacuum to it in the area around the location where the medicament is to be injected and drawing the portion of the tissue onto the nozzle.  The result is improved injection with less pain to the patient and less damage to the tissue.
Patent CA-1171980-A (CA)
Inventor: KOTOWSKI ANDREAS F
IPC: G01N23/04
Filed: 1982-03-17
Granted: 1984-07-31
Abstract: A baggage system which employs a fan-shaped x-ray beam which scans baggage on a conveyor belt and produces images of the contents of the baggage on a video monitor. The output of an x-ray source is collimated into a narrow linear beam. Objects to be scanned are exposed to this beam with successive slices of the object being so exposed as the conveyor moves the object past the beam. A light emitting screen receives the beam after it has passed through the object and emits a light pattern in accordance with the characteristics of the object being scanned. The light output of the screen is received by an array of photodiodes which generate electrical signals in accordance with the intensity of the light received thereby. The outputs of the photo-diodes are sequentially sampled to provide a series of signals in accordance with the photo-diode outputs, which signals are automatically corrected for diode gain and dark current variations in each of the diodes whenever there is a time interval between objects passing through the beam which is greater than a predetermined value. These signals are converted to digital form and stored in a memory. The output of the memory is fed through appropriate video output circuits to a video monitor where an image of the object being scanned is displayed.
Patent CA-1200470-A (CA)
Inventor: HAUFFE DIETER
IPC: C23C22/12
Filed: 1982-04-08
Granted: 1986-02-11
Abstract: ABSTRACT OF THE DISCLOSURE           A process for the phosphatizing of metals, particularly iron, steel and zinc, in which the metal is contacted with acidic aqueous zinc phosphate solutions, containing an oxidizing agent, which contain from 0.4 to 1.5 g/liter of Zn from 0   to 1.3 g/liter of Ni and from 10  to 26 g/liter  of P2O5, and in which the weight ratio of Zn to P2O5 is adjusted to a value of (from 0.012 to 0.12) : 1 and of Ni to Zn to a value of (from 0 to 1.5): 1, and the bath is supplemented with a concentrate, in which Zn, Ni and P2O5 are present in a weight ratio of (from 0.18 to 0.33: (from 0 to 0.06) : 1, so as to obtain satisfactory phosphatizing results over a long period. Preferably, the zinc phosphatizing solutions, which, in addition, may also contain simple or complex fluorides and compounds that reduce the weight of the coat, are applied at a temperature within the range of from 30 to 65°C.
Patent CA-1168538-A (CA)
Inventor: PASTRONE GIOVANNI
IPC: A61M1/00
Filed: 1982-05-03
Granted: 1984-06-05
Abstract: S P E C I F I C A T I O N               INTRAVENOUS METERING DEVICE                      ABSTRACT         A device for precise metering of liquids for intravenous delivery to a patient and its method of use, the device including a pumping chamber with a reciprocable diaphragm positioned therein.  The device also includes valves positioned at the pumping chamber inlet and outlet, the valve at the pumping chamber inlet being operated independently of the pressure within the pumping chamber.  The device also includes a gas retention chamber having an upper portion providing for the forma-tion of the gas-liquid interface and a lower portion from which liquid free of gas bubbles may be removed.
Patent CA-1186104-A (CA)
Inventor: JAEGER GERHARD
IPC: B27K3/40
Filed: 1982-06-04
Granted: 1985-04-30
Abstract: ABSTRACT OF THE DISCLOSURE     The use of 1-iodo-1-alkynols against microorganisms especially those which affect industrial materials is disclosed.  These iodo-1-alkynols are effective fungicides for the protection of industrial materials.