baber/WOPTO huggingface dataset:
Patent CA-1108413-A (CA)
Inventor: HEATH CHARLES A
IPC: A01D34/83
Filed: 1980-03-10
Granted: 1981-09-08
Abstract: A B S T R A C T A lawn mower comprising a plurality of flexible filament cutter elements carried on a continuous or endless driven belt. The lawn mower includes a plate-like frame having an arcuate front end formed as a portion of a perfect circle, on the underside of which is mounted a plurality of driven pulleys. A drive motor having a drive pulley is mounted on the frame, in a position to the rear of the driven pulleys. A drive belt is operatively mounted around the driven pulleys and around the drive pulley on the motor for driving the driven pulleys. The endless belt which carries the flexible filament cutter elements is mounted around the driven pulleys whereby when the driven pulleys are rotated by the drive belt the belt carrying the flexible cutter filaments is moved around the arcuate front end of the mower frame, and the filament cutter elements are moved outwardly by centrifugal force, for cutting engagement with grass and other vegetation, with a flail type cutting action.
Patent CA-1151198-A (CA)
Inventor: WALZ KLAUS
IPC: C08F2/32
Filed: 1980-03-21
Granted: 1983-08-02
Abstract: ABSTRACT OF THE DISCLOSURE     New surface-active phosphonic acid esters, which are interalia suitable as emulsifiers and dispersants, a process for their preparation and emulsions and dis-persions of watersoluble polymers containing the new phosphonic acid esters and having high stability on storage.
Patent CA-1131712-A (CA)
Title: Microwave heating apparatus with a  variable power load control device
Inventor: MATSUSHIMA KAZUFUMI
IPC: H05B6/66
Filed: 1980-04-23
Granted: 1982-09-14
Abstract: Abstract of the Disclosure A microwave heating apparatus includes a heating chamber for heating food, a microwave generator for supplying a micro-wave into the heating chamber for internally heating the food, heating resistors for externally heating the food, and a con-trol circuit for controlling the connection of the microwave generator and the heating resistors to a power source.  The control circuit effects a control that power is supplied to the microwave generator or the heating resistor, or is simul-taneously supplied to them.  With such a construction, the food may be cooked in a desired manner and the cooking time is reduced.
Patent CA-1168002-A (CA)
Inventor: VELDMAN DONALD R
IPC: B21H3/02
Filed: 1980-05-05
Granted: 1984-05-29
Abstract: A B S T R A C T           A thread forming screw having a helical thread and a tapered lead-in section with a polygonal cross section is formed from a conventional blank by rolling the blank between a pair of thread rolling dies having means thereon to form alternating convex lobes and concave relief areas in the frus-to-conical surface of the blank.  Thus, the screw may be formed with a polygonally shaped threading end without a prior working of the blank's frusto-conical surface.  Curved ramp surfaces smoothly interface the lobes and concavities to allow metal in a workpiece being threaded to roll into the concavities there-by reducing the torque needed to form a thread in the workpiece,
Patent CA-1152591-A (CA)
Inventor: NOLF JEAN-MARIE E
IPC: H02G15/013
Filed: 1980-07-30
Granted: 1983-08-23
Abstract: ABSTRACT         A cable sleeve outlet for splice cases comprising a cylindrical member, having an outer wall in which re-entrant por-tions are formed, each re-entrant portion constituting a cable-receiving channel and having a longitudinal opening to the ex-terior.  One end of this cylindrical member is closed for con-tainment of pressure.  The re-entrant nature of the longitudinal openings allows an excess pressure to be maintained within the sleeve outlets without the bond between the channels and the cables therein being put into peel.  A fastener is insertable into the open end of the cylindrical member.  The fastener is so formed that in use it bears on an inner surface of, and thus provides a substantially rigid internal support for, at least part of the longitudinal outside wall of the cylindrical member in addition to the part thereof involved in the said bridging closure.  The fastener is preferably in the form of two .     half-shells with slots which engage the re-entrant portions to hold the openings closed.  Sealant material such as hot-melt ad-hesive is preferably provided on the cable-contacting surfaces of the re-entrant portions and on the fastener.  The cylindrical member may be closed at one end to effect a seal, especially for retaining pressure when used in pressurized splice cases.
Patent CA-1153704-A (CA)
Inventor: SATAKE TAKEO
IPC: B01D43/00
Filed: 1980-10-28
Granted: 1983-09-13
Abstract: METHOD FOR REMOVAL OF IMPURITIES FROM LIQUID MIXTURES            ABSTRACT OF THE DISCLOSURE     The invention provides a method for the removal of liquid or solid impurities from an impurity-containing liquid mixture wherein the impurities are emulsified or finely suspended in the liquid medium.  The method comprises kneading the impurity-containing liquid mixture with a viscoelastic material having an affinity for the impurities and having substantially no affinity for the liquid medium, thereby causing the viscoelastic material to take up the impurities, and then separating the purified liquid medium from the viscoelastic material.  By this method, various liquid wastes can be purified, and valuable resources can be recovered from the wastes and re-used.          The separated liquid medium, if not useful, can be thrown away without causing environmental pollution problems.
Patent CA-1140194-A (CA)
Inventor: CHRIST ALFRED
IPC: F16C32/06
Filed: 1980-10-31
Granted: 1983-01-25
Abstract: ABSTRACT    Mounted on the rotor 1 is a plate 10 which is connected to the rotor at a point 11 so as to be immovable in the di-rection of support but tiltable relative to the rotor 1. On one side, the plate 10 carries the sliding surface 4 for the mounting member 5 comprising the support surface 6 and, on its other side, the plate 10 forms the cross sectional sur-face 12 of a pressure cushion 13. The support surface 6 and the cross sectional surface 12 are located opposite each other and are substantially the same size. The pressure in the pressure cushion 13 and the pressure in the space between the sliding surface 4 and the support surface 6 are kept substantially the same as each other. As a result, the plate 10 and hence the sliding surface 4 remain flat even when de-formation of the rotor occurs.
Patent CA-1157566-A (CA)
Title: Error correction apparatus and method
Inventor: BERNHARDT DONN E
IPC: G06F11/10
Filed: 1980-12-02
Granted: 1983-11-22
Abstract: A B S T R A C T          An apparatus and method for correcting data groups within a data stream to form a corrected data stream.  Each group of the stream is applied to register and simultaneously to error detec-tion and correction apparatus.  When no error is detected the data groups of the stream are transferred to a data group destination When an error is detected, the data group containing the error is replaced by a corrected data group and subsequent data groups of that stream are passed through the error detection and correction apparatus even when no correction is necessary.  The process is repeated when a new stream of data groups is present.
Patent CA-1162503-A (CA)
Inventor: LEGAST ETIENNE
IPC: C11B9/02
Filed: 1980-12-18
Granted: 1984-02-21
Abstract: ABSTRACT OF THE DISCLOSURE:         An extraction enclosure is connected by a pipe in its upper region to a source of steam.  A drawer, having a grill base, for containing vegetable materials to be extracted permits the introduction of vegetable materlals into the extraction enclosure.  The base of this enclosure communicates with a subjacent refrigerated or cooling enclosure, provided with a discharge means.  The risk is thus avoided or minimized of over-heating and/or of the hydrolysis of the essential oil in the course of extraction and all obstacles are eliminated or minimized of flux of vapours and of liquid at the refrigerant level.  The charging and discharging of the extraction enclosure are also simplified.
Patent CA-1143723-A (CA)
Inventor: COLLINS MAURICE J
IPC: F24H9/00
Filed: 1981-01-15
Granted: 1983-03-29
Abstract: ABSTRACT         Metal heat exchangers formed by casting in a cored mould to leave core openings which must be closed before use.  The open-ings are closed by means of dished or cup-shaped core plugs sim-ilar to those used in automobile engine cylinder blocks.
Patent CA-1165938-A (CA)
Inventor: FEARING RALPH B
IPC: C08K5/524
Filed: 1981-01-21
Granted: 1984-04-17
Abstract: Abstract of the Disclosure The viscosity of filled unsaturated polyester resin compositions is reduced by the incorporation in said compositions of an effective amount of an organic phosphite ester for viscosity reduction.  Filled unsaturated polyester resin composition treated to reduce viscosities in this manner are more processable.
Patent CA-1178324-A (CA)
Inventor: HINZ HANS-DIETER
IPC: H04N1/40
Filed: 1981-02-19
Granted: 1984-11-20
Abstract: ABSTRACT:         A large number of printing electrodes are com-bined to form groups which each time have a common switch-ing point, each printing electrode of the same ordinal number of each group being connected to a common voltage amplifier.  A capacitor is connected between the common switching point of a group and the electrical control element associated with each printing electrode.  All capacitors are simultaneously charged, however, consecu-tively one group after the other, to the analog voltages which correspond to the information to be printed and which are present on the relevant voltage amplifiers.  The time required for the charging of all capacitors is less than the printing time for an image element.  The circuit arrangement is particularly suitable for an electrophor-etic printing method.
Patent CA-1213699-A (CA)
Inventor: TEMIN SAMUEL C
IPC: A61K6/083
Filed: 1981-04-28
Granted: 1986-11-04
Abstract: Abstract of the Disclosure A polymerizable dental composition containing methacrylate monomer(s) and free radical polymerization catalyst for said monomer(s), the monomer(s) having been treated with a sulfonated cation-exchange resin in free acid form prior to contact thereof with said catalyst or during contact thereof with said catalyst but prior to free radical liber-ation by said catalyst, to improve the stability of the monomer(s) -catalyst system against polymerization, particularly under ambient conditions.
Patent CA-1196665-A (CA)
Inventor: PASSARELL WAYNE H
IPC: F16F1/387
Filed: 1981-05-06
Granted: 1985-11-12
Abstract: ABSTRACT An engine mount  (10)  having two irregular hexagonal housings  (12  and  14)  with  a  central  lug  (16)  passing therethrough  bonded  by  two  series  of  four  pads  (18-21  and 21-25)  to each housing  in which the housings are laterally offset from each other such that when they are mounted onto a chassis  (32)  the one housing  (12)  becomes aligned with the second housing (14) to preload the pads bonding it to the lug (16) while the elastomeric pads  (21-25) bonding the lug  (16) to the second housing (14) remain substantially unloaded.
Patent CA-1163980-A (CA)
Inventor: LOGSDON DANIEL D
IPC: F16L55/035
Filed: 1981-05-07
Granted: 1984-03-20
Abstract: TITLE; SOUND ISOLATING DEVICE FOR SUSPENDING        PLUMBING PIPES                     ABSTRACT      A device for suspending plumbing components such as a pipe elbow or a high ear 90 elbow between the studs of a wall and retarding propagation of sound between the plumbing components and the wall has a main body or housing formed of a semi-resilient material which is incapable of transmitting a sound from a first location in this body to a second location also in the body. A first member which attaches to the wall or a strip of plumbers tape extending between the studs is attached to the body at the first location. A second member which attaches to the plumbing com-ponents is attached to the body at the first location. The first and second members are connected to the body at their respective locations such that a parallel portion of the first member is parallel with, but is not coplanar with, a parallel portion of the second member. The non-coplanar positioning of the portions of the first and second members spaces the attachment of the plumbing component out of the plant of attach-ment to the support surface or plumbers tape.
Patent CA-1133774-A (CA)
Inventor: SIMKO ALADAR O
IPC: F02D1/14
Filed: 1981-06-05
Granted: 1982-10-19
Abstract: ABSTRACT OF THE DISCLOSURE An internal combustion engine has a fuel injection pump and an air/fuel ratio controller.  The controller has a lever that is connected to the pump lever.  An aneroid moves the controller lever as a function of changes in intake manifold vacuum to maintain a constant air/fuel ratio to the mixture charge.  A fuel enrichment linkage is provided that modifies the movement of the fuel flow control lever by the aneroid in response to changes in manifold gas temperature levels and exhaust gas recircula-tion to maintain the constant air/fuel ratio.  A manual override is provided to obtain a richer air/fuel ratio for maximum acceleration.
Patent CA-1132575-A (CA)
Title: Derives de l'acide 2-(2-amino 4-thiazolyl) 2-  hydroxyimino acetique et procede pour leur  preparation  preparation
Inventor: HEYMES RENE
IPC: C07D277/38
Filed: 1981-06-16
Granted: 1982-09-28
Abstract: L'invention a pour objet des acides de formule générale: (III) dans laquelle R2 représente un groupement facilement éliminable par hydrolyse acide ou par hydrogénolyse ou un radical chloroacétyle, R3 représente soit un groupement CO2R"1 dans lequel R" 1 représente un radical alkyle ayant de 1 à 3 atomes de carbone, ou un groupement ester facilement éliminable par hydrolyse acide ou par hydrogénolyse, soit un radical nitrile, soit un radical carbomoyle - CONH2, R' et R" , identiques ou différents, représentent un atome d'hydrogène ou un radical alkyle ayant de 1 à 3 atome de carbone, le groupement                se trouvant dans la position syn. L'invention a également pour objet un procédé de préparation de ces acides qui sont notamment utilisables comme intermédiaires dans la préparation d'oximes dérivées de l'acide 3-acétométhyl 7-amino thiazolyl acétamido céphalosporanique à usage antibiotique sur les bactéries gram (+) et gram (-).
Patent CA-1164384-A (CA)
Inventor: IZUMI TAKAYUKI
IPC: C10C3/00
Filed: 1981-07-14
Granted: 1984-03-27
Abstract: ABSTRACT OF THE DISCLOSURE         A substantially uniform mesophase pitch is prepared  by  treating  a mesophase  forming  pitch material at elevated temperatures above about 380°C to produce a mixture of mesophase and non-mesophase pitch containing about 20% to about 80% mesophase. The mixture is then maintained at a temperature below about  400°C   or  a  time sufficient  to  allow the mesophase to coalesce and settle as a lower separable layer.  A mesophase pitch so produced may contain from 90 to 100% mesophase with a softening point of less than 320°C.
Patent CA-1186303-A (CA)
Inventor: MCGREGOR WILLIAM H
IPC: C07K7/06
Filed: 1981-08-17
Granted: 1985-04-30
Abstract: Abstract of the Disclosure There are disclosed polypeptides having the formula:     R1-Lys-Lys-X-R2 wherein R1 is hydrogen or p-Glu; X is Glu or Asp; and R2 is Val, NH2 or Val-NH2; the fully protected peptide-resin intermediates thereof and pharmaceutically acceptable salts thereof.  These polypeptides have the capability of inducing the maturation of T-cell populations and thus are useful in a number of therapeutic areas.
Patent CA-1208230-A (CA)
Inventor: CHAMBON JEAN-PIERRE
IPC: C07D295/18
Filed: 1981-08-21
Granted: 1986-07-22
Abstract: ABSTRACT "Derivatives of 4-aminobutyric acid and drugs, active in particular on the central nervous system, containing same."            The present invention relates to new derivatives of lower alkyl amino acids of formula (I)   in which R is an alkyl, cycloalkyl, possibly substituted phenyl group, m is 0 to 3 and n is 0 to 2, X is H or alkyl or phenyl-alkyl, R1 and R2 are H, alkyl, aralkyl, cycloalkyl or phenyl or form with N a heterocycle with 5 or 6 groupings. It also relates to a process for preparing said products and the drugs, active in particular on the central nervous system, con-taining said products.
Patent CA-1174288-A (CA)
Inventor: IKEDA NOBUO
IPC: H05B6/76
Filed: 1981-10-02
Granted: 1984-09-11
Abstract: ABSTRACT OF THE DISCLOSURE A microwave leakage-preventive device for use with a high frequency heating appliance for dielectric heating of an object by high frequency energy has a choke atten-uator installed in a door for attentuation of microwaves, the choke attentuator being of the type adapted to enter an oven cavity when the door is closed.  A portion of the choke attentuator is received in a recess formed within the door body, so that the choke attentuator entering the oven cavity is made smaller by an amount corresponding to the dimension thereof received in the door body.  The width of the recess formed within the door body is made larger than the width of the choke attentuator entering the oven cavity, thereby providing a small-thickness door which is superior in microwave leakage prevention.
Patent CA-1167301-A (CA)
Inventor: STEVENS DONN E
IPC: A61B3/02
Filed: 1981-10-28
Granted: 1984-05-15
Abstract: ABSTRACT OF THE DISCLOSURE     An improved refractor for use in the subjective examination of human eyes.  Each half of the refractor in-cludes a plurality of lens supporting disks, a hub assembly for rotatably supporting the disks, and a comb assembly to space the disks along the optical axis.  One of the disks supports at least one set of 4 cross cylinder lenses.  Each disk is coupled to a stepping motor for selective rotation.          Each motor is, in turn, supported by a bracket which permits rotation equivalent to a partial motor step to insure align-ment of the optical elements supported on the disks with the optical axis.  The cylinder lenses supported on the disks are also rotated by a stepping motor.  The Risley prisms of each half of the refractor are always positioned on the optical axis and rotated by stepping motors.  Finally, the refractor includes electronics, including a microprocessor, to control the rotation of the motors as required to move the various optical components as necessary to emulate the ophthalmic prescription of the person whose eyes are being examined.
Patent CA-1184995-A (CA)
Inventor: HERZOG RUDOLF
IPC: G05D3/12
Filed: 1981-11-03
Granted: 1985-04-02
Abstract: Abstract The PI controller for a lockable servo motor (16) comprises a selector (36) having a first, normal operating position in which the control signal is fed to the I network and in the other position of which there is fed to the I network the output of a subtraction member (40) the inputs of which receive the input and output of the servo motor; the selector is actuated by means of a comparator which also locks the servo motor when the deviation is of small absolute value.  In this way the servo motor is not operated as frequently and yet this does not appreciably impair the control accuracy.
Patent CA-1191232-A (CA)
Title: Dispositif de regulation de la vitesse de rotation  d'une turbine ou pompe a reglage double
Inventor: DAUTREMAY GERARD
IPC: F03B15/08
Filed: 1981-11-24
Granted: 1985-07-30
Abstract: Dispositif de régulation d'une turbine à double réglage, telle qu'une turbine PELTON. Il comporte un régulateur R à paramètres uniquement adaptés aux déflecteurs et agissant aussi sur les injecteurs par l'intermédiaire d'une conjugaison et d'un correcteur chargé de fournir aux injecteurs la loi de variation optimale.
Patent CA-1174521-A (CA)
Inventor: DOWNES PETER B
IPC: E05D15/06
Filed: 1982-01-14
Granted: 1984-09-18
Abstract: ABSTRACT OF THE DISCLOSURE           Corner connectors for sliding doors which connect stiles and rails of the doors and carry upper and lower guide arms are improved by making the arms detachable.  The arms are connected to the connector bodies by T-bars passing through T- or L-slots in the same so that the latter may be removed from the bodies at one end of their travel.  The modified connectors are simpler to manu-facture since the connector body is formed by a one-piece stamping with portions struck out to provide the connections to the arms, and reduce assembly and inventory problems.
Patent CA-1169006-A (CA)
Inventor: SHIROTO YOSHIMI
IPC: B01J21/16
Filed: 1982-01-21
Granted: 1984-06-12
Abstract: PROCESS FOR THE CONVERSION OF HEAVY HYDROCARBON        OILS INTO LIGHT HYDROCARBON OILS                             ABSTRACT      Heavy hydrocarbon oils are converted into light hydrocarbon oils by two-stage process wherein, in the first stage, a heavy hydrocarbon oil is subjected to thermal cracking conditions and, in the second stage, the product of the thermal cracking is subjected to a hydrotreatment in the presence of a specific catalyst having a large pore volume in pores with diameters of 200 - 400 .ANG..  The hydro-treatment is carried out so that the product oil may have a toluene insoluble content of 0.5 wt % or less.
Patent CA-1179506-A (CA)
Title: Metal refining method
Inventor: NAKAO YASUYUKI
IPC: C21C5/48
Filed: 1982-02-09
Granted: 1984-12-18
Abstract: ABSTRACT OF THE DISCLOSURE:           A method of refining a metal by blowing a refining gas surrounded by a cooling gas into the melt of the metal to be refined using a concentric multi-tube system nozzle situated beneath the surface of the melt in a refining vessel.  The method comprises controlling the flow rate of the cooling gas passing through the passageway for the cooling gas formed between the outermost tube and the adjacent inner tube of the nozzle as defined by the following equation:                             wherein A is the cooling capacity of the cooling gas;  B is the flow rate of the cooling gas; .pi.Di is the inside circum-ference of the outermost tube;  and T is the wall thickness of the outermost tube.
Patent CA-1202896-A (CA)
Inventor: KOKUBU TADAO
IPC: A61K35/22
Filed: 1982-02-17
Granted: 1986-04-08
Abstract: A B S T R A C T         An antigen drug or a process of producing it available for the oral, the percutaneous and the permucous membrane immunotherapies with autoimmunization equilibrium induced in feeling of cold, what is called "HIESHO" in Japanese, contracting nonspecific allergic diseases caused from auto-antigen-antibody reaction by atypical antibody. The antigen drug is available in the liquid type and the ointment type which are effective to the percutaneous and the permucous membrane immune therapies of non-specific allergic diseases.  The antigen drug is made from urea of normal and healthy person.
Patent CA-1178280-A (CA)
Inventor: HODGSON GORDON L JR
IPC: C07D405/12
Filed: 1982-03-05
Granted: 1984-11-20
Abstract: ARSTRACT            The compound of formula (I)          (I) and acid addition salts thereof are of value in medicine in the treatment or prophylaxis of pain, inflammation or fever.  The compound and its salts may be administered alone or as a pharma-ceutical formulation.  The ccmpound may be prepared by methods analogous to those known in the art or, for example by cyclisation of a 4-halo-N-(3/4-methylene dioxy phenyl)butyramide in the presence of aqueous sodium hydroxide and a phase transfer catalyst such as treithylbenzyl ammonium chloride.
Patent CA-1190624-A (CA)
Inventor: LOOK THOMAS F
IPC: B61L25/04
Filed: 1982-03-15
Granted: 1985-07-16
Abstract: ABSTRACT          A method and apparatus for extracting information from an object within a large interrogation zone by utilizing a retroreflective backing to define the location of the object and/or information on the object, and an apparatus designed to eliminate from consideration all specularly and diffusely reflected light otherwise present within the zone and thereby isolate the retroreflective backing within the zone.  The apparatus then extracts the information which was defined by the retroreflective backing.