baber/WOPTO huggingface dataset:
Patent CA-1121869-A (CA)
Inventor: SOSIN BOLESLAW M
IPC: H03F3/24
Filed: 1980-01-22
Granted: 1982-04-13
Abstract: ABSTRACT          Improvements in or relating to power amplifiers A high frequency power amplifier consists of a large number of serially connected transistors.  The base connections of the transistors are connected to a potential divider consisting of reactive componets, usually capaci-tors, which form part of a tuned circuit which is resonant at the frequencies at which the amplifier is to be used.          The resonant currents flowing in the potential divider ensure that sufficient base current is available for the transistors to provide the required amplification.
Patent CA-1104506-A (CA)
Inventor: DOWNING JAMES H JR
IPC: B60L50/13
Filed: 1980-02-12
Granted: 1981-07-07
Abstract: ABSTRACT           A modular farm tractor whose wheels are driven by individual A.C. induction motors and whose accessories or attachments are also driven by A.C. induction motors.  A prime mover, such as a gas turbine operating at a constant speed, is mounted on the tractor and drives a three-phase alternator which produces A.C. power at a constant frequency of 400 Hz.  The frequency of the power applied to the wheel motors is controlled by a first cycloconverter means connected to the output of the alternator.  The alternator output is also coupled through a second cycloconverter means to an A.C. power outlet mounted on the tractor.  Various farm accessories associated with the tractor are driven by A.C. induction motors connected to the A.C. outlet.  The frequency of the power applied to the accessory motors is controlled by the second cycloconverter means.  A material-transferring tunnel runs between the front and rear of the tractor along the center line thereof and between the tractor's wheels.
Patent CA-1166367-A (CA)
Inventor: REINHARDT JACK R
IPC: H04J3/00
Filed: 1980-02-14
Granted: 1984-04-24
Abstract: ABSTRACT OF THE DISCLOSURE     A signal commutator selectively passes one of a plurality of input signals to a variable amplifer in an order determined by order information stored in a memory circuit.  The gain and offset of the amplifier is varied as indicated by operational information also stored in the memory circuit to achieve a standard output signal as each input signal is coupled to the amplifier.  Preferably there are two variable amplifiers with one amplifier being adjusted to proper settings while the other amplifier operates on an input signal.
Patent CA-1155666-A (CA)
Inventor: TAWSE IAN S
IPC: F01K27/00
Filed: 1980-03-21
Granted: 1983-10-25
Abstract: POWER SYSTEM                 ABSTRACT OF THE DISCLOSURE     A vapor cycle power system in which the low level heat source is furnished by water or air via the medium of a compression cycle heat pump, and subsequent higher temperature level heat energies are provided by direct combustion, solar energy, geothermal energy or waste heat, singularly or in combinations thereof, in either or both gaseous or liquid forms,  In certain embodiments of the invention, tile system has the capability to provide heating and cooling in addition to the function of producing useful shaft work.
Patent CA-1128052-A (CA)
Title: Parabanic acid derivatives, herbicides  containing these compounds, and the  manufacture of such herbicides
Inventor: SCHIRMER ULRICH
IPC: A01N43/50
Filed: 1980-03-25
Granted: 1982-07-20
Abstract: ABSTRACT OF THE DISCLOSURE:  New an valuable parabanic acid derivatives having a herbicidal action, herbicides containing these compounds, processes for controlling the growth of un-wanted plants with these compounds, and processes for manufac-turing these herbicides.
Patent CA-1165048-A (CA)
Title: Elements sensibles a certains produits organiques  polluants, notamment les hydrocarbures
Inventor: BONAVENT GERARD
IPC: C08L7/00
Filed: 1980-04-25
Granted: 1984-04-03
Abstract: L'invention concerne un élément sensible destiné à être utilisé dans un dispositif comprenant (a) un élément sensible qui se détériore au contact de produits polluants organiques; et (b) un moyen pour l'élément sensible de générer une contre-mesure, ledit moyen coopérant avec ledit élément et étant actionné suite à la détérioration de celui-ci, caractérisé en ce que ledit élément est un article de forme finie, fait en un matériau résistant aux rayons solaires et comportant un copolymère séquencé styrène-butadiène dont au moins une partie est hydrogénée. L'invention vise également un procédé de fabrication d'un élément sensible tel que défini ci-dessus ainsi que le dispositif de détection le comprenant et la méthode de détection résultant de sa mise en oeuvre.
Patent CA-1146431-A (CA)
Inventor: SORENSEN WILFRED B
IPC: F24S10/95
Filed: 1980-06-26
Granted: 1983-05-17
Abstract: ABSTRACT OF THE DISCLOSURE        An apparatus and method for circulating a heat transfer liquid from a heat collector, which is generally but not essenti-ally a solar collector, to a heat exchanger or heat storage means which is located at a level below that of the heat collector with-out the use of any externally powered pumps.  The heat transfer liquid is at least partially vaporized in the steeply sloped collector and the vapour/liquid rises in a series of "slugs" to a condenser located adjacent the top end thereof.  The vapour is condensed and the hot liquid is forced downwardly to the heat exchanger by the pressure of the rising slugs of vapour and liquid.  After giving up useful heat in the heat exchanger the now cooled liquid is recirculated to the condenser and thence to the collector.
Patent CA-1140292-A (CA)
Inventor: KWONG PETER C
IPC: C08L23/02
Filed: 1980-07-16
Granted: 1983-01-25
Abstract: CONNECTOR MEMBER FOR DISSIMILAR MATERIALS     Inventors:  Peter C. Kwong Dean G. Laurin ABSTRACT OF THE DISCLOSURE     A plastic composition which may be molded into a connector which is capable of simultaneously sealing to both polyvinyl chloride plastics and polyolefin plastics.  The plastic composition comprises from 50 to 75 percent by weight of an essentially polyolefin material which is sealingly com-patible with the polyolefin plastic to which the composition is intended to be sealed, and from 25 to 50 percent by weight of a flexible block copolymer of covalently bonded polybuty-lene terephthalate units and poly(1,4-butylene) oxide units.
Patent CA-1144960-A (CA)
Inventor: VIZE ROBERT M
IPC: B60T13/22
Filed: 1980-09-11
Granted: 1983-04-19
Abstract: Automatic Brake Control for Tilting Operator Cab Abstract A vehicle having an operator's cab which may be tilted to gain access to parts of the vehicle located beneath the cab, has a braking mechanism which automatically brakes the vehicle when the cab is tilted so that maintenance and tests may be conveniently performed on the components under the cab while the engine is running.  The mechanism consists of a pedal and a linkage carried by the cab.  The linkage includes a lever arm, a rod and a lever arm connected to a brake actuating assembly.  The pedal and linkage are operated to activate the brake actuating assembly for conventional braking and are carried with the cab during tilting of the cab to automatically activate the brake actuating assembly to set the brakes.
Patent CA-1136802-A (CA)
Inventor: TRYBOM STIG H E
IPC: E03C1/14
Filed: 1980-09-17
Granted: 1982-12-07
Abstract: Abstract Disclosed is an adjusting device for sanitary units served with water under pressure, for instance water closets, bidets, wash-basins, showers and the like.  The water under pressure is also utilized to move the sanitary unit to positions accommodated to the user.
Patent CA-1132351-A (CA)
Title: Implement for gathering hay, windrowed crops and  other strewn material
Inventor: EYKAMP ROY D
IPC: A01D65/02
Filed: 1980-09-22
Granted: 1982-09-28
Abstract: IMPLEMENT FOR GATHERING HAY, WINDROWED CROPS           AND OTHER STREWN MATERIAL                        ABSTRACT To mow grass, weeds and other growth or pick up crop or other strewn materials from ground or other level, a rotor is equipped with flail members which are travelled closely over the materials so as to flick them into a carrier bin, a conveyor chute or the like.  The flail members are of pliant sheet material each fixed by one longitudinal edge to a rotor shaft so as to be able to extend radially from the shaft, under centrifugal force, when the shaft is rapidly rotated; the back or trailing faces of the distal edge marginal portions of the blades are eccentrically weighted so that, upon rotation, the margins are centrifugally induced to incline angularly in the direction of blade rotation so to exercise a spooning or up-scooping action on the matters to be mown and or picked up.
Patent CA-1128037-A (CA)
Title: Axially-substituted steroidal compounds and method  of preparation
Inventor: ZEELEN FILIPPUS J
IPC: C07J13/00
Filed: 1980-11-05
Granted: 1982-07-20
Abstract: ABSTRACT OF THE DISCLOSURE         A method is disclosed for the cyclisation of subs-trates of the formula:                     (III) wherein:    (a) R1 is H or alkyl of one to four carbon atoms, (b) R2 is H or alkyl of one to four carbon atoms, with the proviso that R1 is H when R2 is alkyl, and with the proviso that R2 is H when R1 is alkyl;    (c) R3 is a leaving group selected from the group con-sisting of hydroxy, alkoxy of one to four carbons, alkoxyalkoxy of two to four carbons, acyloxy of one to about seven carbons, and trialkylsilyloxy of less than fifteen carbons;  (d) R4 is hydrocarbyl of one to four carbon atoms, a hydrocarbyl of one to two carbon atoms substituted by halogen or alkoxy of one to two carbons, or alkoxy of one to four carbon atoms; and (e) R5 and R5' each are H, OH, alkyl, trialkylsilyloxy, or an esterified or etherified hydroxy-group of about one to ten carbon atoms, leading to novel and biologically active compounds of the following formulae:                                    (IV)                 (V) "para"               "ortho"     having R1 through R5' as defined above, with R6 being alkyl of from one to about four carbon atoms, among which are intermediates for preparing well known biologically active 7 .alpha.-substituted steroids, such as 7 .alpha.-methyl-oestrone; 7 .alpha.-methoxy-oestra-diol and the like.
Patent CA-1170863-A (CA)
Title: Hot work steel
Inventor: OEHRBERG NILS A
IPC: C22C38/32
Filed: 1980-11-06
Granted: 1984-07-17
Abstract: ABSTRACT OF THE DISCLOSURE     A hot work steel with very high resistance to tempering and a very high strength at elevated temperatures, a good ductility and a comparatively low content of expensive alloying elements:  the steel contains in weight percent:  0.30-0.45 C, 0.2-1.0 Si, 0.3-2.0 Mn, 2.0-3.5 Cr, 1.5-2.5 Mo, ? 0-0.01 ?, balance essentially only iron and imperities in normal quantities:  for a further embodiment the steel contains a maximum of 1.0, preferably a maximum of 0.5 and suitably a maximum of 0.3% cobalt:  in the hardened and tempered condition the steel has a fine grain lath-martensitic or partly bainitic microstructure which is free from retained austenite, and which contains a very finely dispersed intergranular precipitation of carbides, among which vanadium carbides are the dominating carbide phase.
Patent CA-1138750-A (CA)
Inventor: GEMMELL-MURDOCH ANDREW
IPC: A01G23/085
Filed: 1980-12-04
Granted: 1983-01-04
Abstract: ABSTRACT         A tree harvester of the type having a grapple assembly, shear assembly and de-limbing assembly where the grapple assembly and the de-limbing assembly are mounted on respective teles-copical slidable carriers.  Cables connect the de-limbing assembly (or grapple assembly) to the grapple carrier (or de-limbing carrier) to move the de-limbing assembly (or grapple assembly) along its carrier at substantially the same velocity as the relative velocity between the two carriers.  The grapple assembly and de-limbing assembly may delimb two three trunks in a single operation, both tree trunks being severed by the shear assembly into logs of substantially uniform length.
Patent CA-1156350-A (CA)
Title: Method for flashing a stroboscope for use with judging the good or bad of an object to be inspected
Inventor: KUBOTA YUTAKA
IPC: H04N5/222
Filed: 1980-12-11
Granted: 1983-11-01
Abstract: ABSTRACT OF THE DISCLOSURE An object is picked up by a television camera and a video signal thereof is produced. A stroboscope flash illuminates the object with the light therefrom, detecting the object arriving at a predetermined detecting position and pro-ducing a position detecting signal. A synchronizing signal is separated from the video signal, and a signal for flashing the stroboscope is generated when both of the position detecting signal and the synchronizing signal exist, so that the video signal of the object is delivered from the television camera at the beginning of the scanning thereof.
Patent CA-1192348-A (CA)
Inventor: KUHLS JUERGEN
IPC: C08J3/12
Filed: 1980-12-11
Granted: 1985-08-20
Abstract: Abstract of the disclosure Free-flowing sintering powders based on polymers containing at least 98.5 % by weight of tetrafluoro-ethylene units can be prepared from colloidal polymer dispersions obtained in a customary manner by emulsion polymerization, stirring being carried out initially, optionally with the addition of an inorganic salt, until thickening, indicated by optical inhomogeneities, is achieved, an organic liquid which wets the polymer particles and is soluble in water to the extent of not more than 15  % by weight then being added and stirring then being continued until granules are produced. The polymers preferably contain up to 1.5 % by weight of polymerized units of at least one modifying, perfluorin-ated monomer.  The free-flowing sintering powders have a high bulk density, an excellent flow time and further advantageous properties.   They can be provided with customary fillers and are suitable for ram extrusion and for press-sinter processing to give sintered blocks and subsequently veneer-cut films.
Patent CA-1138231-A (CA)
Inventor: CHOW KIRK K
IPC: B25B13/46
Filed: 1980-12-22
Granted: 1982-12-28
Abstract: REVERSIBLE RATCHET DRIVE                  Abstract of the Disclosure In a ratchet tool having a toothed driving, a complementary coaxial, generally cylindrical rotatable toothed core within the ring, and a core-carried pivotal toothed double-ended pawl secured within the core and selectively positionable to intercouple the driving ring with the core for positively driving a core-carried tool element in each of two opposite torque-transmitting modes, improved means for pivotally shifting the pawl to a selectable mode of torque-transmitting core rotation, the improvement comprising finger actuable pawl-shifting means responsive to finger pressure applied along a vector which includes a force component directed axially into the core to effect, through intercoupling linkage, pivotal radial shifting of the pawl, alternately, between first and second driving-ring-engaging operational positions, and in which the pawl shifting means is conveniently manipulable with the same hand used to hold and to operate the tool.  An addi-tional important feature of the invention is that there is pro-vided means whereby the tool user may palpably or visually readily perceive in which rotational mode the tool is set.
Patent CA-1192495-A (CA)
Title: Procede de deformation permanente des cheveux et  composition destinee a la mise en oeuvre de ce  procede
Inventor: MADRANGE ANNIE
IPC: A61K8/46
Filed: 1980-12-23
Granted: 1985-08-27
Abstract: DE LA DICULGATION: Procédé de déformation permanente des cheveux, et composition destinée à la mise en oeuvre de ce procédé. Ce procédé consiste dans un premier temps à réduire les liaisons disulfures de la kératine par application d'une composition réductrice contenant un polymère cationique, puis dans un second temps à reformer lesdites liaisons par application d'une composition oxydante, ce second temps étant effectué en présence d'un agent tensio-actif anionique.
Patent CA-1169432-A (CA)
Inventor: ROUY NOEL
IPC: C07F9/165
Filed: 1981-03-18
Granted: 1984-06-19
Abstract: ABSTRACT     PROCESS FOR THE PREPARATION OF MALATHION           Process for the preparation of malathion by reacting an excess of O,O-dimethyl-dithiophosphoric acid with ethyl maleate in the presence of a solvent which forms a heterogeneous azeotrope with the 0,0-dimethyl-dithiophosphoric acid, and removing the excess O,O-dimethyl-dithiophosphoric acid by azeotropic distillation.
Patent CA-1160571-A (CA)
Inventor: KAPLAN MURRAY A
IPC: A61K31/00
Filed: 1981-04-27
Granted: 1984-01-17
Abstract: ABSTRACT           This invention concerns novel water-soluble compositions of the antitumor agent 4'-(9-acridinylamino)-methanesulfon-m-anisidide (m-AMSA).  More particularly, water-soluble compositions are provided which comprise a mixture of m-AMSA with lactic acid.  The compositions enable m-AMSA to be administered as an aqueous solution without the necessity of using dimethylacetamide as a pharmaceutical vehicle.
Patent CA-1148929-A (CA)
Inventor: WESTERMARK LENNART
IPC: E21B10/28
Filed: 1981-05-04
Granted: 1983-06-28
Abstract: ABSTRACT OF THE DISCLOSURE       A boring head for reaming a pre-drilled hole in raise boring or for similar earth cutting operations comprising a plurality of roller cutters.   For purposes of extending the radius of the boring head in operation or decreasing its dimensions during transport one or several extension elements are provided for detachable attachment to the boring head by means of a wedge connection.
Patent CA-1132090-A (CA)
Title: Method of and anodes for use in electrowinning metals
Inventor: IVES ANDREW G
IPC: C25C1/00
Filed: 1981-05-27
Granted: 1982-09-21
Abstract: Abstract of the Disclosure Anodes of alloys, which may be fragmented and used in baskets, are formed of passive film-forming metals selected from the group consisting of titanium, zirconium, niobium and tantalum and elements having atomic numbers-23-29.  The anodes find use in electrowinning of metals.  Methods of using such anodes and electrowinning cells incorporating such anodes are also disclosed.
Patent CA-1155412-A (CA)
Inventor: JUBENVILLE DUNCAN B
IPC: B01D17/00
Filed: 1981-07-31
Granted: 1983-10-18
Abstract: ABSTRACT OF THE DISCLOSURE            Earth and sand containing bitumen, tar, and/or oil is broken down to particle sizes that can be suspended in water as a carrier for the particles, so that the suspension can be pumped upwardly through an inclined duct or separator where the suspended particles are subjected to horizontal ultrasonic vibrations of between about 18 and 27 kiloHertz for a period between about 5 and 10 minutes. These vibrations completely separate the hydrocarbons from the earth and sand, and entrap gases in the heavier-than-water hydrocarbons so that all the hydrocarbons float to the top of the duct or ultrasonic separator to form a layer which can easily be withdrawn. The cleaned earth and solid particles settle behind a baffled and perforated partition along and above the lower side of the duct or unit, from which lower side these cleaned particles can be removed. The water carrier is withdrawn near the upper end of the separator below the hydrocarbon layer, and recirculated to the lower end of the separator for suspending more hydrocarbon-containing particles.
Patent CA-1207944-A (CA)
Inventor: ZALUCHA DENIS J
IPC: C09J4/00
Filed: 1981-09-14
Granted: 1986-07-15
Abstract: FAST CURING PHOSPHATE MODIFIED ANAEROBIC COMPOSITION                            ABSTRACT            Cure time of anaerobic adhesive compositions containing organophosphate esters is markedly reduced by the incorporation into such adhesives of certain tertiary amines.
Patent CA-1155375-A (CA)
Inventor: SACKS MARTIN B
IPC: B60C15/02
Filed: 1981-10-21
Granted: 1983-10-18
Abstract: SEMI-PNEUMATIC TIRE                ABSTRACT OF THE DISCLOSURE           A semi-pneumatic tire body for assembly to the rim of a wheel comprises spaced tread and root portions intercon-nected with spaced sidewalls to define an annular cavity.  An annular load-bearing rib is connected to the root portion and extends radially toward the tread portion to be normally spaced apart from the tread portion in the unloaded state in order to establish communication between the internal chambers of the tire for free gaseous interchange and for free response of the tire to load forces.
Patent CA-1151900-A (CA)
Inventor: SHELDON JEROME F
IPC: F16G13/06
Filed: 1981-10-30
Granted: 1983-08-16
Abstract: ABSTRACT OF THE DISCLOSURE         A polymeric chain link including two sidebars and a barrel connecting the sidebars.  The barrel is comprised of a male barrel portion and a female barrel portion, each barrel portion being an integral extension of one of the sidebars.  The male barrel portion fits inside the female barrel portion, and the inner mating surface of the female barrel portion cooperates with the outer mating surface of the male barrel portion to couple the two portions, mechanically locking them together.
Patent CA-1163795-A (CA)
Inventor: SPANGENBERG STANLEY F
IPC: C25C3/04
Filed: 1981-11-05
Granted: 1984-03-20
Abstract: Abstract of the Disclosure An uncoated ceramic anode comprising titanium having a formal valence of +4; titanium having a formal valence of +3; and a dopant which prevents at least a portion of the titanium +3 from converting to titanium +4 when the ceramic anode is at operating cell conditions.  The ceramic anode may have an electrically conductive substance enclosed in its interior.  The substance serves to transfer electrical energy from a power source to the ceramic member.  These anodes are particularly useful when used in molten salt electrolytic cells because they give good electrolytic production rates while demonstrating exceptionally low wear rates.
Patent CA-1184104-A (CA)
Inventor: BOSE AJIT
IPC: B29C65/74
Filed: 1981-11-25
Granted: 1985-03-19
Abstract: ABSTRACT OF THE DISCLOSURE     This invention provides an improvement in a method of slitting and sealing two or more layers of plastic film material in contact with each other.  The improvement comprises slitting and sealing the layers with a light beam generated by a laser.  The beam intensity is such that the temperature of the beam at the surface of the film is at a point sufficient only to raise the enthalpy of the material to the transition point between the molten and solid states of the material, whereby bead formation is reduced or eliminated at the seal.  Methods are also disclosed for slitting a larger single sheet of material into two or more smaller sheets of material as well as for providing micro-perforations or microporous plastic material by the use of a pulsing beam generated by a laser.
Patent CA-1198773-A (CA)
Inventor: KISLER SEMYON
IPC: G01R29/24
Filed: 1981-11-30
Granted: 1985-12-31
Abstract: Corona Detection Apparatus Abstract The presence (or absence) of corona is detected by inserting an electrical conductor into the path of spatial current produced by said corona and monitoring the conductor current that is produced by corona-generated electric charges impinging on said electrical conductor.
Patent CA-1194133-A (CA)
Inventor: ISHII DAISUKE
IPC: H04W88/02
Filed: 1981-12-15
Granted: 1985-09-24
Abstract: Abstract A pager receiver is described in which an oscillator generates an oscillation signal which is frequency divided to provide first and second actuation signals having different frequencies.  An audible annunciator gives an audible signal when supplied by the first actuation signal and an L.E.D. is switched on and off by counter-electromotive forces developed in an induc-tance element forming part of the audible annunciator in response to either the first actuation signal or the second actuation signal.  Gate circuitry is connected to the frequency divider, audible annunciator and L.E.D. to supply the annunciator and the L.E.D. with one of the first and second actuation signals in response to an alert signal.  A control signal supplied by an external switch is supplied to the frequency divider and is effec-tive in choosing the first or second actuation signal.