baber/WOPTO huggingface dataset:
Patent CA-1179739-A (CA)
Inventor: EPSOM ROBERT L
IPC: H04B1/10
Filed: 1982-05-12
Granted: 1984-12-18
Abstract: ABSTRACT OF THE DISCLOSURE A mixer circuit is provided which achieves substantially reduced intermodulation distortion products as compared with conventional mixers.  The present mixer circuit includes first and second mixers situated in first and second signal paths, respectively.  A small portion of the signals incident upon the input of the first mixer are coupled to the input of the second mixer via a first coupler.  The first coupler effectively substantially  attenuates signals incident upon the first mixer before providing said signals to the input of the second mixer, intermodulation products as well as desired signals are generated at the outputs of both the first and second mixer. The output of the second mixer is coupled to the output of the first mixer via a second coupler.  The second coupler exhibits an appropriate amount of attenuation, such that the intermodulation products which are coupled from the output of the second mixer to the output of the first mixer exhibit an amplitude equal to the first mixer intermodulation products. Thus,  the intermodulation products from the first and second mixers meet at the circuit output in such a manner as to destructively interfere with each other resulting in substan-tial intermodulation product cancellation while the remaining desired signals are provided to the circuit output.
Patent CA-1176185-A (CA)
Inventor: ATKEY RICHARD E
IPC: B66B9/04
Filed: 1982-06-07
Granted: 1984-10-16
Abstract: ABSTRACT OF THE DISCLOSURE          An hydraulic elevator installation includes an elevator cab having an overhead frame member capable of supporting the weight of the cab. An hydraulic jack, optionally a telescoping cylinder jack,  the cylinder of which is mounted in the hoistway,extends upwardly through the car.  The plunger of the jack is coupled to the overhead frame member such that the plunger carries the overhead frame member and thereby the weight of the car.  Preferably, the jack is disposed in the door return column located in the forward portion of the cab near the center of gravity of the cab.
Patent CA-1201593-A (CA)
Title: Epuration selective en matiere arsenicale au cours  d'un procede alcalin de traitement d'un minerai  uranifere et/ou molybdenifere au moyen d'un compose  du magnesium
Inventor: MAUREL PIERRE
IPC: C22B60/02
Filed: 1982-07-28
Granted: 1986-03-11
Abstract: Procédé d'épuration sélective en matière arsénicale au cours d'un procédé d'attaque oxydante à chaux d'un minerai uranifère et/ou molybdénifère contenant des matières arsénicales, consistant à attaquer ce minerai au moyen d'une liqueur aqueuse de carbonate et/ou bicarbonate de sodium ou de potassium, ladite attaque s'effectuant selon des conditions de concentrations, de températures et de pressions provoquant la solubilisation de l'uranium et/ou du molybdène et de l'arsenic présent dans le minerai, puis à recueillir une suspension d'une phase solide dans une phase liquide, enfin, à séparer lesdites phases, qui se caractérise en ce que l'arsenic solubilisé lors de l'attaque est extrait sous la forme d'arséniate de magnésium par traitement du milieu contenant de l'arsenic au moyen d'un composé du magnésium.
Patent CA-1227798-A (CA)
Inventor: DORN FRANZ J
IPC: C07D213/50
Filed: 1982-08-16
Granted: 1987-10-06
Abstract: Abstract The invention is concerned with novel pyridine and pyrazine derivatives of the formula                     I wherein R signifies phenyl substituted with 1 to 3 halogen atoms, the two ortho-positions not being occupied simulta-neously, R1 signifies halogen, alkyl, OR5, SR5 or OSO2R5, R2 signifies hydroxy or chlorine, R3 signifies hydrogen or alkyl, R4 signifies 3-pyridyl, 3-pyridyl-1-oxide, 2-pyrazinyl, 2-pyrazinyl-1-oxide, 2-pyrazinyl-4-oxide or 2-pyrazinyl-1,4-dioxide and R5 signifies alkyl, with the proviso that where R2 signifies chlorine and R3 signifies alkyl,  R1 cannot  be bromine or iodine, and acid addition salts of these compounds, a process for their manufacture, fungicidal compositions which contain these compounds as the active substance as well as the use of such compounds or compositions for the control of fungi in agriculture and in horticulture.   Moreover, the invention is concerned with starting materials and fungicidal active substances of the formula                V wherein R has the significance given above, R1'' signifies alkyl and R4' signifies 3-pyridyl or 2-pyrazinyl, which are used for the manufacture of the compounds of formula I, and their N-oxides as well as fungicidal compositions which contain these compounds as the active substance.
Patent CA-1152169-A (CA)
Inventor: COLLINS ADRIAN V
IPC: H01P1/208
Filed: 1982-08-25
Granted: 1983-08-16
Abstract: ABSTRACT A resonant microwave cavity having end caps, including irises, which are made of a bi-metal or tri-metal material.  The end caps are affixed to the cavity walls in the usual manner.  As temperature varies, the end caps, including irises, expand into or out of the cavity to compensate for the increase or decrease in length of the cavity walls due to variations in tempera-ture.  Therefore, as temperature varies, the bi-metal or tri-metal end caps maintain the volume of the cavity substantially constant.  When a bi-metal end cap is used, each layer of metal has a different coefficient of expansion.  When a tri-metal end cap is used, the centre layer has the highest coefficient of thermal expansion.  The two outer layers have a lower coefficient of thermal expansion than the centre layer and can be the same or different.   In previous devices to compen-sate for temperature variations in a cavity, the end cap is not affixed to the cavity in the usual manner but is built onto a plunger which increases or  decreases in length with temperature.
Patent CA-1195710-A (CA)
Inventor: NESBITT R DENNIS
IPC: A63B37/00
Filed: 1982-08-25
Granted: 1985-10-22
Abstract: ABSTRACT        The disclosure embraces a golf ball and method of making same wherein the golf ball has a solid resilient center or core, and a multilayer cover construction which involves a first layer or ply of molded hard, high flexural modulus resinous material on the core, and a second or cover layer of soft, low flexural modulus resinous material molded over the first layer to form a finished golf ball.
Patent CA-1185723-A (CA)
Inventor: BEASLEY JOHN K
IPC: C08K5/12
Filed: 1982-09-09
Granted: 1985-04-16
Abstract: ABSTRACT Propagation of electrical trees and water trees in electrical insulation made of ethylene homopolymers or copolymers with an unsaturated monomer is inhibited by the addition to the insulating composition of an organic carboxylic ester having at least one aromatic ring and at least three carboxylic ester groups, the ester being liquid at the operating temperature of the electrical equipment in which the insulation is used.  The main utility of the inhibitors of this invention is in the primary insulation for power transmission cables, especially those used in high voltage applications.
Patent CA-1181156-A (CA)
Title: Installation de surveillance et de commande de fabrication, notamment d'une machine d'imprimerie
Inventor: GROULT EMILE J L
IPC: G01G23/42
Filed: 1982-09-28
Granted: 1985-01-15
Abstract: Installation de surveillance et de commande d'une machine fabriquant des pièces soumises en fin de fabrication à un contrôle de qualité avec mise au rebut des pièces défectueuses. Elle est caractérisée par un dispositif de calcul, un capteur de nombre de pièces fabriquées, un dispositif de pesée, des exemplaires de rebut, un dispositif de pesée de précision, un exemplaire et à partir des informations obtenues, le dispositif de calcul fournit les nombres d'exemplaires fabriqués et mis au rebut et par différence le nombre d'exemplaires conformes. L'installation trouve son application dans le domaine des machines d'imprimerie.
Patent CA-1204006-A (CA)
Inventor: HURTIG CARL R
IPC: B25B13/28
Filed: 1982-11-18
Granted: 1986-05-06
Abstract: ADJUSTABLE WRENCH     ABSTRACT A continuously adjustable wrench suitable for use with a range of nut or bolt head sizes and having a handle which is offset or angularly disposed with respect to the wrench head. The wrench provides contact with the nut or bolthead at three spaced, opposing points such that the rotational torque imparted thereto is optimized and the strength required for the wrench head for a given torque is reduced. In one embodiment, the wrench head is pivotally disposed with respect to the handle either about a single pivot or a double pivot to drive a camming contact surface on the handle into contact with a cofronting surface of the nut or bolthead. In another embodiment, a contact surface is adjustable longitudinally along the handle to be positioned adjacent the nut or bolthead. In a further embodiment, a wrench head is disposed at each end of the handle and an adjustment screw is provided on the handle for sliding the handle with respect to the wrench heads fur continuously adjusting both wrench heads simultaneously. The wrench heads of this embodiment may be either pivotally or non-pivotally disposed with respect to the handle.
Patent CA-1203178-A (CA)
Title: Dispositif a tuyau souple, notamment pour obturateur  dilatable
Inventor: RAGOUT BERNARD
IPC: E21B33/127
Filed: 1982-11-19
Granted: 1986-04-15
Abstract: Dispositif à tuyau souple et élastique, notamment pour obturateur dilatable, du genre dans lequel le tuyau est renforcé par deux nappes d'armature en cables souples disposés en hélice et est fixé aux extrémités par serrage de ses nappes de renfort sur des pièces rigides comprenant un élément intérieur d'appui et un élément extérieur de frettage co-axiaux. L'élément d'appui et l'élément de frettage présentent des surfaces de serrages coniques divergentes vers l'extrémité et un coin est enfoncé entre les extrémités des nappes de renfort pour les serrer respectivement contre l'élément d'appui et l'élément de frettage.
Patent CA-1221790-A (CA)
Title: Water-dilutable binder, a process for its preparation   and its use
Inventor: JUST CHRISTOPH
IPC: C08G18/00
Filed: 1982-12-15
Granted: 1987-05-12
Abstract: Abstract of the disclosure:      A water-dilutable binder for coatings based on reaction products of diene polymers and poly-unsaturated polyfunctional amidoamines, which comprises a) a cyclo-rubber, b) a polyfunctional amidoamine which has been added to component a) and is derived from reaction with a monomeric unsaturated fatty acid free from conjugated double bonds but having 12 to 18 carbon atoms or from its oligomers, and c) a polyisocyanate which is bonded to component b) and whose isocyanate groups which are not bonded to component b) are blocked , a process for its preparation and its use for paints and coatings.
Patent CA-1193707-A (CA)
Inventor: USUI MASAJI
IPC: H02H7/045
Filed: 1982-12-29
Granted: 1985-09-17
Abstract: ABSTRACT OF THE DISCLOSURE    A protective relay which generates a signal to protect an object in a power system that is to be protected in response to a differential signal and a suppress signal showing an abnormal condition, which are obtained from electric currents of two separate points in the object.  The protective relay is equipped with a logical decision circuit which generates the signal to protect the object only when the differential signal is greater than a predetermined value, and the second harmonic component contained in the differential signal is smaller than a predetermined ratio.
Patent CA-1193109-A (CA)
Inventor: GRIFFITHS DEREK A
IPC: B21K15/02
Filed: 1983-01-20
Granted: 1985-09-10
Abstract: ABSTRACT      A horsehoe is manufactured from a length of rolled steel section whose outer edge (with respect to the finished horsehoe) is inwardly inclined.  After shaping the section into the horseshoe configuration, the section is subjected to a fullering (grooving) operation in such a way that said outer edge is displaced into substantially vertical disposition.
Patent CA-1193021-A (CA)
Inventor: HAMADA OSAMU
IPC: G06F9/22
Filed: 1983-01-28
Granted: 1985-09-03
Abstract: DIGITAL SIGNAL PROCESSING SYSTEM                ABSTRACT OF THE DISCLOSURE           Described is a digital signal processor including at least two memories, that is, a microprogram memory for storing a series of microinstructions for instructing a digital signal processing procedure, and a coefficient memory for storing coefficient data required for perform-ing a series of arithmetic operations on the digital signal data.  These data being transferred and written into said microprogram memory and said coefficient memory from a host computer system.  The coefficient memory has at least two pages corresponding to the total memory area which may be addressed during digital signal processing to be effected by said microinstructions.  Page selection of the coefficient memory may be performed from said host computer system.
Patent CA-1198866-A (CA)
Inventor: HARPELL GARY A
IPC: D04H1/42
Filed: 1983-03-15
Granted: 1986-01-07
Abstract: ABSTRACT        COMPOSITE CONTAINING POLYOLEFIN FIBER      AND POLYOLEFIN FIBER MATRIX         A composite containing a network of ultra-high molecular weight polyethylene or polypropylene fibers of high tenacity and modulus and a matrix which has ethylene or propylene crystallinity, e.g. poly-ethylene, polypropylene or copolymers.  The composite can be formed by heating the matrix to its melting or sticking temperature around the fibers.  The composite retains a high proportion of the tenacity of the fiber.
Patent CA-1194148-A (CA)
Inventor: KOHSIEK CORD H
IPC: G05F3/26
Filed: 1983-04-13
Granted: 1985-09-24
Abstract: ABSTRACT: "Integrated circuit for generating a current".     The invention relates to an integrated circuit for generating a current which produces a voltage drop across a reference resistor, which voltage drop is de-termined by an input voltage (voltage-current converter).          In order to compensate for the inevitable spread in width of the reference resistor formed in the integrated circuit, this reference resistor is formed by two parallel-con-nected resistors having the same resistance per unit area, the same length and different widths, and the out-put current is formed by the difference between the currents which flows through these resistors.          Fig. 1.
Patent CA-1195741-A (CA)
Inventor: TANG WAI-CHEUNG
IPC: H01P1/208
Filed: 1983-05-30
Granted: 1985-10-22
Abstract: ABSTRACT A bandpass filter has a plurality of cascade waveguide cavities each resonating in three independent orthogonal modes. The cavities can by cylindrical or have a square cross-section.  Where the cavities are circular, each cavity resonates in TE111 and TE010 modes simultaneously. Where the cavities have a square cross-section, each cavity resonates in TE011 and TM110 modes simultaneously.  Between each triple-mode cavity, there is located an iris having an aperture with four separate radial slots that are offset from a centre of the iris.  The filter is capable of producing an elliptic function response.  In a variation of the invention, an allpass filter has an output that is short circuited and, when used in conjunction with a circulator, it functions as a group delay equalizer. Previous triple-mode filters are not capable of pro-ducing an acceptable result relative to dual-mode filters.  By utilizing a bandpass filter in accordance with the present invention, a weight and volume saving can be achieved over comparable dual-mode bandpass filters. Previous dual-mode allpass networks are not capable of producing equal response characteristics as triple-mode allpass networks in accordance with the present invention.
Patent CA-1170031-A (CA)
Inventor: MUELLER HORST
IPC: C09K15/32
Filed: 1983-06-06
Granted: 1984-07-03
Abstract: Abstract of the Disclosure Mixture consisting of an organo-tin mercaptide of the formula (II) or (III)          (II) ,                 (III), and an organo-tin carboxylate of the formula IV or V                                   (IV) ,                 (V)  , in which formulae R1 is C1-C12 alkyl, X is sulfur or oxygen, R4 is the -S-CH2-CH2-COOR5 or -X-Sn(R1)n(S-CH2CH2-COOR5)3-n group, in which R1 and X are as defined above, R5 is C8-C14 alkyl, n is 1 or 2, and R6 is C10-C30 alkyl, the weight ratio of II: IV or III:IV being in the range from 9:1 to 1:9.  These mixtures are stabilisers for chlorinated polymers and also activators for the manufacture of foamed plastics.
Patent CA-1206491-A (CA)
Inventor: MILLEN JEFFREY A
IPC: B65H29/22
Filed: 1983-07-06
Granted: 1986-06-24
Abstract: ABSTRACT A sheet stacker in which sheets are compiled in a tray 71 against registration members 74 and a completed set is ejected, the registration members 74 being retracted, by an eject mechanism comprising a continuously rotating drive roller 80 projecting through the base 72 of the tray and a coacting idler roller 81 mounted on a spring arm 82 which is retracted during stacking and then pressed against the top of the completed set to effect ejection. Preferably the roller 80 is a deformable roller having a low coefficient of friction surface.
Patent CA-1195500-A (CA)
Inventor: BHATTI MOHINDER S
IPC: C03B37/08
Filed: 1983-07-13
Granted: 1985-10-22
Abstract: METHOD OF MAKING GLASS FIBER FORMING FEEDERS   ABSTRACT OF THE DISCLOSURE            A method of making an orificed discharge wall for supplying a plurality of streams of molten inorganic material to be attenuated into filaments comprising inserting elements (85) in apertures (71) in a member (69); sealing said elements (85) and member (69) within a coating (94) adapted to isostatically transmit pressure to said assembly; applying isostatic pressure to the hermetically sealed elements (85) and member (69) to mechanically seal the elements (85) to the member (69); and heating the mechanically sealed elements (85) and member (69) to fuse the elements (85) to the member (69) to prevent the unwanted passage of molten glass between said elements and said member, said elements having an orifice (86) to permit the passage of molten glass therethrough to establish said streams.
Patent CA-1218216-A (CA)
Inventor: OSBORG HANS
IPC: C01B21/16
Filed: 1983-08-03
Granted: 1987-02-24
Abstract: ABSTRACT OF THE DISCLOSURE           Anhydrous hydrazine and hydrocarbyl-substituted hydrazines are efficiently prepared according to a three-step procedure, comprising a first step wherein ammonia, a primary or secondary amine, an alkali metal amide, an alkaline earth metal amide, a hydrocarbyl-substituted alkali metal amide or a hydrocarbyl-substituted alkaline earth metal amide is reacted with a chlorinating agent to produce the corresponding chloramine without co-production of an amine hydrochloride salt; a second step wherein the chloramine is reacted with a tertiary amine to produce a tertiary hydrazinium chloride; and a final step wherein the tertiary hydrazinium chloride is reacted with an alkali metal amide or an alkaline earth metal amide under anhydrous conditions to produce the desired product.
Patent CA-1199466-A (CA)
Inventor: BROBST GARY A
IPC: E04C3/04
Filed: 1983-08-04
Granted: 1986-01-21
Abstract: Abstract of the Disclosure Spacing-beam segments formed from a single piece of sheet metal.  Each segment is formed with a crowned horizontal portion and a depending spacer foot at one of the ends of the segment.  Openings are formed on the hori-zontal beam portion adapted to receive lugs formed at the other end of the beam portion.  The lugs interlock with the openings to join adjacent segments to form an elongated beam.  The spacing feet provide a space between the surface supporting the feet and a floor or roof supported by the segmented beam.
Patent CA-1195903-A (CA)
Inventor: SCHULZ RENE
IPC: F16K17/06
Filed: 1983-08-08
Granted: 1985-10-29
Abstract: Abstract of the Disclosure A relief valve with adjustable position of the spring seat.         The relief opening normally closed by a poppet valve is arranged in a differential piston and thus movable. The valve spring is fully biased even before attaining the limiting pressure of the relief valve by use of the differential piston.
Patent CA-1212652-A (CA)
Inventor: DAVIS JOHN C
IPC: B65D37/00
Filed: 1983-08-19
Granted: 1986-10-14
Abstract: ASEPTIC FLEXIBLE WALLED CONTAINER                       ABSTRACT           There is disclosed an aseptic flexible walled container having a rigid fitment member cooperative with an associated aseptic filling apparatus.  The container includes a neck, outer flanges surrounding the neck, a frangible membrane and an outer end rim receptive of an hermetically sealed lid.  The neck is formed with an internal chamferred seating shoulder for fluid-tight engagement with a fill tube.  One outer flange cooper-ates with clamping jaws of the aseptic filling appar-atus for detachably sealing the fitment to a sterili-zing chamber and placing it in position for insertion of the filling tube which ruptures the membrane and permits the aseptic introduction of product to the container's interior.  The other outer flange is secured to an opening in a wall of the flexible container.  The joined fitment and container are presterilized prior to filling.  Selected materials for the multi-ply container walls and the fitment permit the container to withstand gamma ray and other sterilization treatment, heat and pressure while maintaining required strength.  After the container is aseptically filled, such as with flowable food product, the fill tube is withdrawn and a lid is hermetically sealed onto the rim of the fitment.  A heat shield adjacent a container wall surrounds the fitment to protect the container from excessive heat generated by the associated filling apparatus during filling.
Patent CA-1199785-A (CA)
Inventor: ALMOND STEPHEN W
IPC: E21B43/25
Filed: 1983-12-12
Granted: 1986-01-28
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides a fracturing fluid com-position and method for fracturing substerranean formations penetrated by a well bore.  The fracturing fluid comprises an aqueous fluid, a gelling agent, a crosslinking agent comprising a zirconium chelate or an aluminum chelate and a sufficient quantity of carbon dioxide to reduce the pH of the fracturing fluid to a level below about 5.5.  The fluid is injected into the formation through the well bore at a rate and pressure sufficient to create at least one fracture in the formation.
Patent CA-1205900-A (CA)
Inventor: NOHARA KAZUNORI
IPC: H04N7/171
Filed: 1984-02-16
Granted: 1986-06-10
Abstract: ABSTRACT OF THE DISCLOSURE     A scrambling system of television signal includes a circuit for eliminating vertical sync pulses in a vertical sync pulse period and equivalent pulses in first and second equivalent pulse periods at opposite ends of said vertical sync pulse period.  In place of the eliminated pulses, substitute pulses having a frequency equal to an integer times the frequency of horizontal sync pulses are deposited.          A framing code inserting circuit is provided for inserting at least one framing code in the substituted pulses. The framing code is carrying information how the television signal is scrambled.
Patent CA-1212728-A (CA)
Inventor: MILLAR PAUL C
IPC: H03H17/02
Filed: 1984-03-19
Granted: 1986-10-14
Abstract: DIGITAL SUB BAND FILTERS                    ABSTRACT      A  digital  signal  is separated  into  a  lower frequency  subband  and  a high  frequency  subband  using quadrature  mirror  filters.   The  singularities  of  each filter, represented in the z-plane, comprise a zero on the real  axis  and  unit  radius,  with  other  groups  each contributing a symmetrical delay response.  At lest one such group has a pole at r, .theta. and a zero at 1/r,.pi.-.theta..