baber/WOPTO huggingface dataset:
Patent CA-1071754-A (CA)
Inventor: DAVIDSON ALLEN L
IPC: H01Q21/20
Filed: 1976-06-18
Granted: 1980-02-12
Abstract: IMPROVED MULTIPLE INPUT ANTENNA SYSTEM                ABSTRACT    An improved antenna system is disclosed in which a single antenna array is simultaneously used in conjunction with several independent radio devices.  Isolated and inde-pendent radio transmitters are coupled, without any signal cancellation, to each and every one of a plurality of isolated independent antenna elements by a combining network which maintains the isolation between each of the radio transmitters and each of the antenna elements.  The com-bining network comprises an array of hybrid networks and creates a predetermined electrical phase difference between each signal received by an individual antenna element.  The antenna elements form a single antenna array consisting of circularly disposed corner reflector antennas.  Each re-flector independently creates an individual radiation pattern and these patterns combine to form a single desired composite radiation pattern.  By maintaining isolation between each of a number of radio transmitters, a plurality of these transmitters may be used simultaneously in con-junction with a single antenna array.
Patent CA-1101281-A (CA)
Title: Procede de fabrication d'une chape d'etancheite elastique a haute resistance, et chape ainsi obtenue
Inventor: GEISEN PIERRE
IPC: D06M15/00
Filed: 1976-06-29
Granted: 1981-05-19
Abstract: DE DIVULGATION La présente invention concerne le domaine des matériaux d'étanchement, et a pour objet un procédé de fabrication d'une chape d'étanchéité élastique à haute résistance. Procédé caractérisé en ce qu'il consiste essentiellement à imprégner de bitume fondu une armature en non-tissé de fibres de polyester, à enduire la surface de cette armature imprégnée d'un mélange bitume-élastomère-résine, et à procéder à la finition de la chape. L'invention est plus particulièrement applicable à la fabrication de chapes d'étanchéité.
Patent CA-1077958-A (CA)
Inventor: KARRER FRIEDRICH
IPC: C07C67/14
Filed: 1976-07-23
Granted: 1980-05-20
Abstract: Abstract of the Disclosure New cyclopropanecarboxylates of the formula   are disclosed, wherein R1 represents hydrogen, methyl or ethyl and n  1, 2 or 3. These compounds are useful as pesticides, especially for the control of insects and pests of the order Acarina and cotton and vegetable plant pests.
Patent CA-1076927-A (CA)
Inventor: HIRAIWA KAZUYOSHI
IPC: F16D48/02
Filed: 1976-09-03
Granted: 1980-05-06
Abstract: Abstract of the Disclosure A hydraulic control system for a hydraulic clutch for a transmission is provided with means for temporarily reducing a line or control pressure fed to the clutch only during disengagement of the clutch.
Patent CA-1048968-A (CA)
Inventor: BRANDTBERG KAI
IPC: B65D41/50
Filed: 1976-09-20
Granted: 1979-02-20
Abstract: Abstract of the Disclosure A plastic insert for sealing caps such as Crown Corks which is capable of forming a seal impermeable to liquid when it is pressed by the cap against the beaded mouth of a container. The insert comprises a central projection di-rected towards the interior of the container. This projection may comprise a transverse hole and/or a longitudinal hole rendering it possible to apply by means of a drawing pin or a safety pin or sew by means of a needle the insert onto a blouse or a display card board. In this manner the insert may be used as a trimming thus offering a certain advertise-ment to the manufacturer of the contents of the container.
Patent CA-1065416-A (CA)
Inventor: ROSSO JOHN B
IPC: H03K3/78
Filed: 1976-09-24
Granted: 1979-10-30
Abstract: CIRCUIT FOR COMBINING PULSE TRAINS      ABSTRACT OF THE DISCLOSURE     An electric circuit with a plurality of inputs, each input receiving a train of pulses.  Each pulse of each train sets a latch of cross-coupled logic gates to an output of logic 1.  A clock generating regular voltage pulses is connected in parallel to the latches so as to reset the output of each gate to logic 0 in series with each other.  The plurality of outputs from the latches is passed through a common gate to form the output train of pulses as an addition of the plural inputs.
Patent CA-1042854-A (CA)
Inventor: TOTH BARTHOLOMEW L
IPC: A47J31/40
Filed: 1976-10-07
Granted: 1978-11-21
Abstract: HOT AND COLD BEVERAGE VENDOR            Abstract of the Disclosure A vendor for hot and cold beverages having a hot water tank for supplying hot water for hot beverages (e.g., coffee, tea, soup, chocolate), an electrical heater for heat-ing water in the tank, a carbonator for supplying carbonated water for cold carbonated beverages, a water pump for pump-ing water to the carbonator or for cold non-carbonated bev-erages, a refrigeration system including a compressor pro-viding refrigeration for cooling the water for vending cold beverages, and a system for reducing the current drawn by the heater when there is a demand for heating water in the tank and the compressor or the pump is in operation, so as to maintain the current drawn by the vendor below a maximum current rating.
Patent CA-1080588-A (CA)
Inventor: GAULT WILLIAM A
IPC: C08G65/00
Filed: 1976-10-21
Granted: 1980-07-01
Abstract: A METHOD OF FORMING AND GROWING A SINGLE            CRYSTAL OF A SEMICONDUCTOR COMPOUND          Abstract of the Disclosure A method of forming and growing a single crystal of a semiconductor compound comprising a Group II-VI or Group III-V compound is disclosed.  The method comprises placing a single crystal seed of the semiconductor compound adja-cent to a first reactant comprising a Group II or Group III element.  A protective blanket, resulting from at least a second reactant of a Group VI or Group V element, is formed over the seed within a temperature zone to protect the seed from dissolution by the first reactant.          The reactants are combined to form a melt at a first temperature within the temperature zone and to grow a single crystal from the melt on the seed at a second temperature within the temperature zone.  The single crystal thus produced can be used, for example, as a substrate for luminescent diodes, transistors, diodes and the like.
Patent CA-1053106-A (CA)
Inventor: LANDRY JEAN
IPC: F24B1/02
Filed: 1976-10-18
Granted: 1979-04-24
Abstract: ABSTRACT OF THE DISCLOSURE      A collapsible camp stove assembly which is characterized by a lap and groove joint between the bottom and the sides and between the top and the sides such that these basic members do not need secondary members to form suitable joints and such as to form flame and smoke tight joints between these basic members.  This collapsible camp stove is adapted to house all the flue sections and other stove accessories therein when in the collapsed mode.  The collapsible camp stove assembly includes a bottom, a top and sides; the bottom and the top have peripheral flanges cooperatively engaging each other and forming an enclosure for the sides and other members when the stove is collapsed and the sides form lap and groove joints with the bottom and the top when the stove is installed.  The top has a rectangular smoke aperture with arc-shaped end edges.  The lower flue section, which is cylindrical, has diametric-ally opposite end lugs which enter the smoke aperture and fit against the arc-shaped end edges, while the end edges of the flue section abut against the top.  A pair of latches, pivoted on the top, removably engage slits made in the lower flue section to retain the latter in position.
Patent CA-1039328-A (CA)
Inventor: LARGE JACK A
IPC: F16L41/00
Filed: 1976-11-09
Granted: 1978-09-26
Abstract: ABSTRACT  A fitting for connecting a branch pipe to main pipe, for example a gas main, with a threaded end for engaging a tapped bore in the main pipe, a sealing gasket around the end, a collar and a locknut by which the gasket may be compressed against the main pipe to form a seal but allowing the end to be angularly turned if necessary to align the end, the collar being rotatable with respect to but captive on the locknut, with the gasket being threadable on the end.
Patent CA-1039397-A (CA)
Inventor: HUTCHINS ROGER
IPC: G01V1/38
Filed: 1976-11-24
Granted: 1978-09-26
Abstract: ABSTRACT OF THE DISCLOSURE         A heave compensation system for an underwater towed seismic system of the kind in which a body containing a sound source and hydrophones  is towed behind a ship, and a recording is made of echoes from the bottom and sub-bottom layers.  An accelerometer in the towed body produces a signal indicative of the vertical acceleration of the body.  The acceleration signal is double integrated within a frequency range having a low frequency roll-off to produce a position signal which is used to adjust the firing time of the source.  If the fish heaves upwardly, the firing time is advanced; if the movement is downwards, the firing time is delayed.   Preferably a pressure trans-ducer in the fish produces a pressure signal which is also used to adjust the source firing time, for pressure variations below the lowest likely wave frequency.  The crossover of the pressure and acceleration compensation systems is typically about .01 Hz.
Patent CA-1070847-A (CA)
Inventor: MORIMOTO TAKAO
IPC: G06F1/12
Filed: 1976-11-29
Granted: 1980-01-29
Abstract: ABSTRACT OF THE DISCLOSURE          A clock pulse control system for microcomputer systems.  The control system has a central processing unit.         A plurality of first input/output units are connected to the central processing unit and; at least one second input/ output unit is connected to the central processing unit.  A selector channel is connected between the central processing unit and the first and second input/output units.  The channel issues a select signal (S1) and selects at least one of the first and second input/output units according to a programmed control instruction from the central processing unit.  A clock pulse generator is connected to the selector channel, to the central processing unit and to the first and second input/output units.  The generator supplies clock pulses to the central processing unit and to the first and second input/output units.  It generates a first clock pulse (?s) having a frequency (fs) to operate the central processing unit and the first input/output units. It also generates a second clock pulse (?1) having an optimum frequency (n.fs) to operate the second input/output unit when no select signal (S1) is applied to the generator from the selector channel.  The second pulse has the operating frequency (fs) of the central processing unit when a select signal (S1) is applied to the generator from the selector channel.  The arrangement is such that the second input/output unit is operated by the second clock pulse (?1) having the operating frequency (fs) of the central processing unit only when information is transferred between the central processing unit and the second input/output unit.  However, the unit is operated by the second clock pulse (?1) having the optimum frequency (n.fs) when no information is transferred between the central processing unit and the second input/output unit.
Patent CA-1060596-A (CA)
Inventor: CORAN AUBERT Y
IPC: C08L33/00
Filed: 1976-12-16
Granted: 1979-08-14
Abstract: ABSTRACT OF THE DISCLOSURE Thermoplastic elastomeric compositions, comprising blends of high unsaturation diene rubber and thermoplastic ole-fin resin in which the rubber is cured, exhibit superior physi-cal properties including improved toughness.
Patent CA-1089118-A (CA)
Inventor: KOWALSKI GUNTER
IPC: A61B6/03
Filed: 1977-01-31
Granted: 1980-11-04
Abstract: ABSTRACT     In third-generation computer tomography apparatus measuring values must be intermediately stored partly for the total scanning time in order to enable processing of all measuring values with a given projection angle. This involves high expenditures for storage means.  Moreover, the applied dose is larger than required for obtaining the measuring value per se.  The invention provides a shield which moves with the radiator but whose direction does not change in space during the measurement, but doe s change relative to the radiation beam.  As a result, it is achieved that all measuring values with a given projection angle can be obtained within a part of the scanning time, the said part corresponding to the ratio between the opening angle of the radiation beam and the total scanning time.  As a result, the cost of intermediate storage as well as the patient dose can be reduced.
Patent CA-1099560-A (CA)
Inventor: LOHSE KARL-HEINZ
IPC: G03C5/02
Filed: 1977-02-18
Granted: 1981-04-21
Abstract: S P E C I F I C A T I O N "Photographic Process for the Production of Pictures of Increased Contrast" ABSTRACT OF THE DISCLOSURE In order to increase the contrast of a picture such as an X-ray picture over a selected range of densities, a negative transparency of the original picture of selected density value at one end of the selected range and a positive transparency of the original picture at the other end of the selected range are superimposed to form a transparency sandwich and the image produced by illuminating such a transparency sandwich is photographed or displayed. A number of selected density ranges may be superimposed on a single display by making a respective transparency sandwich for each range in a different colour and superimposing such transparency sandwiches. - 1 -
Patent CA-1093705-A (CA)
Inventor: HUNT BILL
IPC: G01R31/26
Filed: 1977-04-14
Granted: 1981-01-13
Abstract: IMPROVED SEMICONDUCTOR TESTER     Abstract of the Disclosure An apparatus for testing the operating state of single and multiple semiconductor junctions, either in or out of circuit.  The tester lncludes a testing circuit which in turn includes a transformer having a secondary with plurality of voltage tap leads which are selectively connectable by a switching device to a resistance and voltage divider array, which includes means adapted to receive the junction to be tested.   The output of the testing circuit is applied to a display circuit which includes a visual indicator, which in turn produces a trace having a con-figuration representative of the forward and reverse characteristics of the function for inspection by an operator.  The variety of voltages available at the secondary of the transformer and the variety of resistance and voltage divider combinations available permit the safe testing of a wide variety of junctions, including multiple junction.
Patent CA-1082275-A (CA)
Inventor: GRANZOW DANIEL B JR
IPC: A61M5/44
Filed: 1977-04-22
Granted: 1980-07-22
Abstract: BLOOD WARMING APPARATUS                         Robert J. Froehlich Daniel B. Granzow ABSTRACT OF THE DISCLOSURE            An apparatus for warming blood and other parental fluids as they are infused through a disposable flow system includes a pair of heating elements which heat the blood as it passes through a warming bag provided in the flow system.          The heating elements are recurringly switched on and off with a duty cycle dependent on both the temperature of the blood at the output of the warming bag, and the temperature differential between the output and input of the bag to main-tain the blood at a predetermined temperature independent of flow rate. A duty cycle alarm circuit senses current supplied to the heating elements and trips the main circuit breaker of the apparatus to terminate operation in the event current is continuously applied over a predetermined interval of time, and temperature range and door alarm circuits sound an alarm if the output temperature of the blood falls outside of a predetermined range or if the operator attempts to remove the warming bag from the apparatus while the apparatus is in operation.
Patent CA-1090917-A (CA)
Inventor: HAYNES WILLIAM P
IPC: H03G3/30
Filed: 1977-04-29
Granted: 1980-12-02
Abstract: POSITIVE FEEDBACK HIGH GAIN AGC AMPLIFIER     ABSTRACT OF THE DISCLOSURE    An automatic gain control circuit provides a high gain signal representative of the difference in amplitude between the synchronizing pulses of a composite video signal and a predetermined reference level.  A common emitter transistor provides high gain amplification of the composite video signal, the emitter of this transistor being biased at the reference level via a voltage reference source.  The collector of this transistor is coupled to an emitter follower transistor whose output signal is filtered to produce the gain control signal.          A controlled positive feedback signal from the emitter of the second transistor amplifier is coupled to the emitter of the first transistor amplifier, and by matching the feedback resistor to the collector bias resistor of the common emitter transistor, the emitter of this transistor is at a virtual ground thereby providing a high gain.
Patent CA-1107021-A (CA)
Inventor: FRANKFORT HANS R E
IPC: D01F6/62
Filed: 1977-06-10
Granted: 1981-08-18
Abstract: ABSTRACT OF THE DISCLOSURE         Poly(ethylene terephthalate) filaments of enhanced dyeability, low boil-off shrinkage (even in as-spun condition), good thermal stability over a large temperature range, and useful as texturing feed yarns and/or as hard yarns requiring no further drawing are prepared by spinning at a withdrawal speed (V in yards/minute) of at least about 5500 yards/minute and with a polymer temperature (Tp) measured (in °C) in the filter pack at a point 50-100 mils above the center of the spinneret plate of   wherein (L) and (D) are the length and diameter (in mils) of the spinneret capillary and (w) is the throughput (in pounds/ hour) per capillary.  The filaments are characterized by a long period spacing above 300 .ANG. in their as-spun condition, and, whether in as-spun condition or after heat-treatment, by a low skin-core value as measured by a differential birefrin-gence in relation to their stress measured at 20% extension which correlates approximately with the spinning speed), a large crystal size, and low amorphous orientation.  The continuous filament yarns may be draw-textured to provide textured yarns which also show enhanced dyeability.  The staple fiber yarns also have very useful properties as compared with conventional staple yarns.  A preferred process of spinning at these extremely high speeds is characterized by the use of a spinneret with capillary-dimensions that produce high shear as the polyester is extruded and is applicable also to copoly-esters, whose filaments show a similar low skin-core in relation to their stress at 20% extension, the precise values for copoly-mers being different from the relationship for poly(ethylene terephthalate).
Patent CA-1093433-A (CA)
Inventor: YEN CHIA-MING
IPC: C21D1/09
Filed: 1977-06-28
Granted: 1981-01-13
Abstract: ABSTRACT OF THE DISCLOSURE           A method is disclosed for increasing physical properties of a non allotropic metal article along a beam affected zone.  Non-allotropic is defined herein to include non-transformation hardenable metals having a hardness below Rc 25.   A preferred method comprises passing a high energy beam, of at least 10,000 watts/cm2 measured at the interface of the beam, across a predetermined surface area at a rate to cooperate with the proportioning of the total article mass with respect to the beam affected zone mass to produce a rapid self-quenching rate and thus assure a desired precipitate and/or intermetallic compound in the resolidification zone.   The high energy beam is preferably a laser generated by a device having a power level of at least 500 watt.   The method may be varied in several respects (a) alloying ingredients may be previously deposited over the beam affected zone so as to be turbulently mixed with melting of the  base material in said zone, (b) alloying ingredients may be constituted as a wire and fed into the high energy beam to be contemporaneously melted with the base material, (c) the alloying ingredients are selected as those having an affinity to form intermetallic compounds with the non-allotropic metal base,    such as copper, manganese, chromium, zinc, cobalt, magnesium, molybdenum, titanium, vanadian, tungsten, zirconium, iron and nickel for an aluminum base and silicon as an independent wear resistance particle, and (d) the alloying ingredients are proportioned with respect to the thickness of the melted zone to render a desired alloy concentration after melting to facilitate greater hardness, greater corrosion resistance, or greater fatigue life of the affected surface region of the article.
Patent CA-1064594-A (CA)
Inventor: MORTENSEN TAGE A
IPC: G08B19/00
Filed: 1977-06-30
Granted: 1979-10-16
Abstract: FIRE AND INTRUDER DETECTION AND ALARM APPARATUS                  ABSTRACT OF THE DISCLOSURE      Improved apparatus is provided for monitoring a space under surveillance, for detecting the existence of a fire, the presence of an intruder or the occurrence of other abnormal con-ditions, and for providing a warning signal for actuating an alarm or the like in response thereto.  The apparatus employs a plurality of sensors which respond by changes in the electrical characteristics thereof to the level of infrared, light or other radiations from the monitored space respectively sensed thereby. The apparatus significantly provides means for rendering the in-dividual sensors directionally responsive to radiations from respectively corresponding portions of the space being monitored, for employing such sensors as output-affecting elements in more than a single arm of an electrical bridge circuit, for employing such sensors when desired in a plurality of operationally related electrical bridge circuits, for employing capacitative coupling between the output of a sensor-controlled bridge circuit and a differential amplifier to "mask" very slow changes in the output of the bridge circuit due to normal ambient variations while re-taining high sensitivity in responding to more rapid changes of such output typical of fire, intruder or other abnormal condi-tions requiring alarm actuation, for employing such differential amplifier for converting changes in capacitatively coupled output from a sensor-controlled bridge circuit into direct current sig-nals of polarity dependent upon the direction of change in such bridge circuit output, and for employing bridge type rectification for converting signals of either polarity from such differential amplifier into control signals of a single polarity for actuating an alarm activating switching component.
Patent CA-1108235-A (CA)
Inventor: JONES CHARLES L
IPC: G01N27/06
Filed: 1977-08-19
Granted: 1981-09-01
Abstract: A B S T R A C T            An end point quality control light circuit for a water demineralizer  The quality control light circuit comprises a power cord, a housing for the electronics, and a probe-light assembly.  The probe-light assembly includes a pair of spaced apart A.C. energized probes, and applies approximately 12 volts to the water.  The probes are transformer isolated from the power input, and the final drive to an indicating lamp is tran-sistorized.  The current through the probes, directly propor-tional to the quality of the water, develops a voltage that is compared to a threshold voltage. The indicating lamp is illumi-nated to indicate high water quality, and is switched off by the final drive transistor when the water quality becomes unaccept-able.  An optional switching circuit, isolated from the quality control circuit, enables the actuation or control of external devices in dependence upon water quality.  Various techniques for minimizing leakage currents are also disclosed.