baber/WOPTO huggingface dataset:
Patent CA-1066358-A (CA)
Title: Safety circuit for detecting an electrical insulation defect in an electrical machine
Inventor: PARRIER HENRI
IPC: H02H3/16
Filed: 1976-02-02
Granted: 1979-11-13
Abstract: ABSTRACT OF THE DISCLOSURE          A safety device for detecting an electrical defect in a machine having a chassis comprises a latch circuit switchable from an initial state to an output state in response to an input signal.  In the output state, the latch circuit generates an output signal suitable for activating an alarm device.  A semiconductor circuit generates the input signal in response to a fault signal.  This in turn is developed across a high resistance connected between the machine chassis and a point in the electrical circuit of the machine.
Patent CA-1071631-A (CA)
Inventor: HEYMES ALAIN
IPC: C07D501/56
Filed: 1976-03-09
Granted: 1980-02-12
Abstract: PROCESS FOR THE PREPARATION OF THIENO (3,2-C) PYRIDINE    AND DERIVATIVES THEREOF                 ABSTRACT OF THE DISCLOSURE        This invention relates to a process for the preparation of compounds having the formula:                                             (I) in which R1 is H or lower alkyl and R2 is H or lower alkyl,or phenyl or benzyl optionally substituted with at least one halogen or a lower alkyl, lower alkoxy, trifluoromethyl or nitro group.      According to this method, a compound of the formula:                                (II) in which R1 and R2 are as defined above and R3 is H optionally substituted alkyl or benzyl, is reacted with a derivative Hal-SO2-R (III) in which Hal is halogen and R is optionally substituted alkyl, aryl or aralkyl, to give a derivative of the formula:                             (IV) in which the various symbols have the above-defined meanings, and the sulfonated derivative of the formula (IV) is heated in the presence of an acid, to give the compound of the formula (I).
Patent CA-1041391-A (CA)
Inventor: ZAITA KATSUYUKI
IPC: F02M9/06
Filed: 1976-04-23
Granted: 1978-10-31
Abstract: ABSTRACT OF THE DISCLOSURE The invention provides in a sliding-throttle-valve type carburetor, the jet needle is formed of hard wire material and the needle jet member is formed of free-cutting metal and plated with nickel-phosphorus.  Increased wear resistance of the metering parts gives a substantially extended service life, reducing secular change in fuel rate and also in quality of engine exhaust gases, despite of the normal floating function of the jet needle.          The formation of metering parts is also advantageous in that it gives increased accuracy and ease of assembling allowing for mass production.
Patent CA-1068543-A (CA)
Inventor: L PIEREDER LUDWIG
IPC: F04C13/00
Filed: 1976-10-12
Granted: 1979-12-25
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a continuous flow meat pump which is in the form of a hollow cylindrical chamber enclosed by a top wall, a bottom wall and a side wall.  There is an inlet opening in the top wall and an outlet opening in the side wall, and a movable blocking means is disposed over the inlet opening and can be moved to block, alternately, a first portion or a second portion of the inlet opening.  A V-shaped wall is included in the chamber to define a V-shaped chamber portion, and the V-shaped chamber portion is disposed underneath the inlet open-ing.  Openings extend through each of the legs of the V-shaped wall, and flap means, freely movable from one leg to another, are included between the legs in the V-shaped chamber portion. The flap means will cover the opening in one leg at any one time. A vane is disposed in the chamber outside of the V-shaped chamber portion and is movable from the outside surface of one leg to the outside surface of the other leg and back again.  A vacuum is drawn behind the vane in the direction of travel of the vane. In one stroke of the operation, meat is fed into the chamber be-tween the vane and the leg which the vane is moving away from. When the motion of the vane is reversed, the vane will now be pushing against the meat which had previously been fed into the chamber to push it out through the opening in the leg which the vane is approaching.  At the same time, meat will be inserted in that portion of the chamber between the vane and the leg that the vane is moving away from.  Thus, in any one stroke, meat is both being fed into the chamber and expelled from the chamber at the same time so that the pumping action is continuous.
Patent CA-1069670-A (CA)
Inventor: FESER MANFRED
IPC: B01J15/00
Filed: 1976-11-12
Granted: 1980-01-15
Abstract: PROCESS FOR PREPARING CONCENTRATED TETRAFLUOROBORIC       ACID   Abstract of the disclosure: process for the preparation of a concentrated tetrafluo-roboric acid from boron-oxygen compounds and hydrogen fluoride by racting a solid boron/oxygen compound with a hydrogen fluoride-containing gas.
Patent CA-1092829-A (CA)
Inventor: YAMAMOTO SATOMI
IPC: C21C7/00
Filed: 1976-12-14
Granted: 1981-01-06
Abstract: ABSTRACT OF THE DISCLOSURE           A molten iron is continuously refined in a refining vessel of a closed type using a flux composed chiefly of an alkali metal compound so as to decrease the content of P and S to a low level.  The alkali metal compound is recovered from the evaporating material and slag generated in the refining and is again used in the refining, while such valuable elements as P, V, etc. may be recovered.         The molten iron thus refined can be converted into a steel of high quality in a known oxygen steel making furnace sub-stantially by means of decarburization only and without the use of any flux or with a slight amount thereof.         The practice of this invention makes it possible to substantially obviate a substance to be discarded or rejected in the steel making process.
Patent CA-1089589-A (CA)
Inventor: LIMBERT FRANK J
IPC: C08K5/523
Filed: 1976-12-30
Granted: 1980-11-11
Abstract: TITLE STABILIZED POLYCARBONATE COMPOSITIONS  ABSTRACT OF THE DISCLOSURE    Polycarbonate resins which contain sufficient halogenated phenolic residues to impart fire retardant characteristics to articles molded therefrom are stabilized by the addition of a hindered phenol selected from the group consisting of a high molecular weight hindered phenol phosphate, a high molecular weight hindered phenol cyanurate, an ester of a hindered phenolic carboxylic acid and an alcohol having 10-26 carbon atoms, and the reaction of a hindered phenol and an aldehyde.  The polycarbonates with the stabilizers of the invention exhibit improved melt flow stabilities and hydrolytic aging characteristics over conventionally stabilized polycarbonates and in most cases over unstabilized polycarbonates.
Patent CA-1078325-A (CA)
Inventor: KALINOWSKI ROBERT E
IPC: C08L83/00
Filed: 1977-02-14
Granted: 1980-05-27
Abstract: Abstract of the Disclosure A cured elastomer article is formed by mixing an aliphatically unsaturated polydiorganosiloxane, a mercaptoorganopolysiloxane and a filler, shaping the composition formed into an article at least 0.25 mm thick and then exposing the article to ultraviolet radiation or electron beam.  The formed article can be a thick elastomeric coating, a seal or gasket or other applications where siloxane elastomers are used.
Patent CA-1084913-A (CA)
Inventor: SORSA ERKKI
IPC: C08B1/08
Filed: 1977-03-03
Granted: 1980-09-02
Abstract: ABSTRACT OF THE DISCLOSURE        A process for the preparation of alkali cellulose by reacting steeping lye and cellulose pulp manufactured by alkali cooking without prehydrolysation or by acid cooking without alkali extraction, and by adding to the cellulose pulp, the steeping lye or the alkali cellulose at least one organic compound which is an alcohol, an ester, an ether, a ketone, an amine, an acid or the salt of such an acid, an imine or an aliphatic hydrocarbon of at least four carbon atoms.
Patent CA-1107879-A (CA)
Inventor: EHRNFORD LARS E M
IPC: A61K6/00
Filed: 1977-03-14
Granted: 1981-08-25
Abstract: ABSTRACT OF THE DISCLOSURE           A composition for reinforcing dental composites or retaining implant materials has a porous three dimensional new-work of organic filaments fused to each other at their point of contact.
Patent CA-1123908-A (CA)
Title: Circuit arrangement for generating a pulse-width modulated signal
Inventor: VAN LOON JOHANNES C F
IPC: H02P27/08
Filed: 1977-04-07
Granted: 1982-05-18
Abstract: PHN.8362 18.1.77 ABSTRACT:          The invention relates to a circuit arrangement for generating in particular three pulse-width modulated carrier waves which are 120° phase-shifted relative to each other, whose modulation depth as a function of time represents a sinewave, which arrangement is destined for controlling three-phase motors. The circuit generates these signals in accordance with a fully digital method on the basis of a first and a second clock signal.          The first clock signal periodically starts an up/down counter which counts the second clock signal. The carrier wave is generated by changing over a flip-flop each time that the maximum count of the up/down counter is reached and the various modulation pulses which are required are generated symmetrically relative to this maximum count. A sequential network modulates the carrier wave sequentially with the correct modulation pulses.
Patent CA-1097996-A (CA)
Inventor: BIER KENNETH C
IPC: F02M7/24
Filed: 1977-04-20
Granted: 1981-03-24
Abstract: Abstract of the Disclosure A carbureting type fuel metering apparatus has an induction passage into which fuel is fed by several fuel metering systems among which are a main fuel metering system and an idle fuel metering system, as generally known in the art; engine exhaust gas analyzing means sensitive to selected constituents of such exhaust gas creates feedback signal means which through associated transducer means becomes effective for controllably modulating the metering character-istics of the main fuel metering system and the idle fuel metering system.
Patent CA-1067576-A (CA)
Title: Gyromagnetic resonance spectroscopy employing spin echo spin-spin decoupling and two-dimensional spreading
Inventor: ERNST RICHARD R
IPC: G01R33/62
Filed: 1977-05-12
Granted: 1979-12-04
Abstract: Application for Patent of RICHARD R. ERNST         for GYROMAGNETIC RESONANCE SPECTROSCOPY EMPLOYING SPIN ECHO       SPIN SPIN DECOUPLING AND TWO-DIMENSIONAL SPREADING                     ABSTRACT OF THE DISCLOSURE      A method of gyromagnetic resonance spectroscopy is disclosed which simplifies the resultant spectra by eliminating spin-spin coupling effects.  The method is particularly useful for eliminating homonuclear spin-spin coupling effects.  In the method, spin echo resonance of the resonators is obtained and the time elapsing between tipping of the resonators and detection of the resultant echo t1 is changed from one measure-ment to the next.  The resultant echos are measured at equal intervals of time t2.  Echo resonance data is Fourier trans-formed from the time domain into the frequency domain to obtain spectral data in-the frequency domain as a function of t1.  A second Fourier transform of the resonance data is then effected to transform the spectral data into data which is a function of both .omega.1  and .omega.2  where .omega.1 and .omega.2  are each related to ? and ? respectively.  The spectral data in the .omega.1 - .omega.2 plane is then projected at 45° to the .omega.2  and .omega.1 axes to derive spectral data free of spin-spin coupling effects.  The data may also be projected perpendicular to and onto the .omega.1 axis to obtain a J coupling spectrum.
Patent CA-1064539-A (CA)
Inventor: SALTER LOWELL S JR
IPC: B21B31/07
Filed: 1977-06-06
Granted: 1979-10-16
Abstract: ABSTRACT OF THE DISCLOSURE         A flexible seal and seal assembly is disclosed for use in rolling mills where roll necks are journalled for rotation in oil film bearings.          The flexible seal has a circular seal body adapted to be mounted in sealing engagement on a tapered section of the roll neck for rotation therewith, and a pair of circular flexible flanges integral with and extending radially outwardly from the seal body with at least one of the flexible flanges being provided at its outer edge with an angularly extending flexible annular lip.          The  seal assembly includes the aforesaid flexible seal surrounded by a circular non-rotatable rigid seal end plate having a radially inwardly extending rigid flange separating oppositely extending rigid shoulders.  The rigid flange is located between the flexible flanges of the seal, with its inner edge spaced radially from the seal body.  The shoulders of the seal end plate have cylindrical shoulder surfaces which are parallel to the rotational axis of the roll neck and which are arranged to be sealingly engaged by the flexible annular lips of the seal.
Patent CA-1094765-A (CA)
Inventor: GRAWEY CHARLES E
IPC: B29L30/00
Filed: 1977-07-11
Granted: 1981-02-03
Abstract: TIRE TREAD FORMING METHOD AND APPARATUS                 Abstract of the Disclosure A body having rubber material thereon is positioned on a lower member, and an upper member is moved toward the lower member, such relative movement causing tread-forming shoes to move to inward positions to form a tread on the rubber material.  As an alternative, the upper and lower members may be brought together, and rubber material may be injected into position to have a tread formed thereon.          Upon movement of the upper and lower member relatively apart, the rubber material is made to remain in contact with the shoes, and the body is removed, whereupon an annular core having rubber material thereon is disposed on the lower member, and the upper and lower members are again brought together to deposit the rubber material in contact with the shoes onto the rubber material on the core.
Patent CA-1068739-A (CA)
Inventor: SAYLOR LEE H
IPC: F16J9/20
Filed: 1977-07-19
Granted: 1979-12-25
Abstract: Abstract In a parted spacer expander for a piston oil control ring of the type which includes an array of alternating inner and outer crowns connected by gener-ally diverging spring legs and a support pad extending radially from each inner crown and connected thereto by a pad leg, an improved slip latch comprising a curved rod having a substantially D-shaped cross sec-tion and having a radius of curvature equal to or less than the free-state radius of curvature of the spacer-expander.  One end of the latch extends through at least one leg opening formed between the spring legs and pads adjacent the expander-ends and is formed with a stop having an axial dimension which prevents passage through the leg openings.  The other latch end extends over an arc of at least seventy-five degrees through a plurality of leg openings in the opposite expander end and is free to slide through the leg openings.  The free latch end terminates in an inwardly directed bev-eled face to permit the free end to ride over the edges of the leg openings during sliding motion therethrough.                            -i-
Patent CA-1075632-A (CA)
Inventor: ABRAHAMSON JOHN H
IPC: A01J5/007
Filed: 1977-09-16
Granted: 1980-04-15
Abstract: ABSTRACT OF THE DISCLOSURE        The invention provides for a method and apparatus for milking an animal such as for example a cow.  The method includes applying a teat cup to a teat of a cow, or similar animal, the teat cup having an infla-tion; the interior of the inflation being in communi-cation with a milk line connected to a source of vacuum.  The exterior of the inflation is in communi-cation with a pulsating vacuum source and the method is characterised in that before milking commences the exterior of the inflation is subject of a lower vacuum (or higher pressure) than the interior of the inflation.      The apparatus provides means for controlling a vacuum level applied exteriorly to an inflation of a teat cup.  The apparatus includes a housing; an inlet port capable of being connected to a source of applied vacuum; and an outlet port capable of being connected to the exterior of a teat cup inflation.  A valve is provided which is capable of moving in response to applied vacuum, to restrict or close off the inlet port and means are provided for gradually increasing the movement of the valve to increase the vacuum level.
Patent CA-1045553-A (CA)
Inventor: ERNEST ROBERT P
IPC: F01L9/02
Filed: 1977-10-03
Granted: 1979-01-02
Abstract: REED VALVE ASSEMBLY FOR ROTARY ENGINE               ABSTRACT OF THE DISCLOSURE         A wing-type reed valve assembly is used in an induction part of a rotary engine.  The valve assembly comprises a converging cluster of tent-like portions having side walls extending at an angle with respect to the main line of flow through the port and openings therethrough, a plurality of flexible thin strips fixedly secured at one side of each opening to normally close the same, and a plurality of steps which are aligned and adjacent each strip for supporting the same in the fully opened condition and which are less than the associated full strip configuration, so that backflow pressure may have access to act on the strip.
Patent CA-1067875-A (CA)
Inventor: DEE RUDOLF
IPC: B65H75/12
Filed: 1977-12-12
Granted: 1979-12-11
Abstract: ABSTRACT         A bobbin on which a package of thread-form or strip-form material can be wound has at one or both ends a reflexive snap ring which is selectively dis-placeable between first and second positions with an over-centre snap action.   In the first position of the snap ring the end of the thread or other material to be wound on the bobbin is held fast in a slot at the boundary of a thread-receiving channel which extends circumfer-entially around the bobbin, while in the second position of the snap ring the channel is opened for access.   The snap ring may be integral with the bobbin sleeve and the bobbin made of a plastics material.   The snap ring can be used on bobbins which have a circumferential flange to retain the wound package and on bobbins without such a flange, in which case the snap ring is directly engageable with the end of the package.
Patent CA-1083889-A (CA)
Inventor: FRESARD MARCEL
IPC: D05B27/22
Filed: 1977-12-21
Granted: 1980-08-19
Abstract: ABSTRACT OF THE DISCLOSURE:          A mechanism for a sewing machine for enabling the manual or automatic control of the direction and of the ampli-tude of movement of a transporting claw guide for material to be sewn.  The mechanism is driven from the main driving shaft of the sewing machine via a cam and a series of intermediate lever members connected to a rotatable shaft connected to the transporting claw guide.  The control is automatically accom-plished by means of a cam driven from the main driving shaft of the machine via the arrangement of levers to obtain back-and-forth movement of the claw guide or, when a cam follower is disengaged from the cam, the adjustments can be accomplished manually without the automatic back-and-forth movement.
Patent CA-1115833-A (CA)
Title: Appareils emetteurs d'ondes electromagnetiques  a haute frequence
Inventor: FELLUS MARCEL
IPC: A61N2/00
Filed: 1978-01-25
Granted: 1982-01-05
Abstract: Appareil émetteur d'ondes électromagnétiques à haute fréquence pour applications médicales ou biologiques. L'appareil comprend une alimentation à basse tension, des moyens d'oscillation pour produire des ondes électromagnétiques à haute fréquence, comprenant une entrée et une sortie; des moyens reliant l'entrée à l'alimentation et au moins une antenne, qui est applicable directement sur le corps d'un patient, pouvant être connectée à la sortie des moyens d'oscillation pour produire un champ électromagnétique à haute fréquence et basse énergie sans effet thermique s'ignificatif.  L'antenne comprend au moins un conducteur sur support isolant.  Le conducteur est formé d'une longueur de matériel conducteur mince.
Patent CA-1108167-A (CA)
Title: HERBICIDALLY ACTIVE PHENOXY-.alpha.-PHENOXY- ALKANECARBOXYLIC ACID DERIVATIVES
Inventor: ROHR OTTO
IPC: C07C327/06
Filed: 1978-03-06
Granted: 1981-09-01
Abstract: Abstract of the Disclosure 3-Phenoxy-.alpha.-phenoxy-alkanoic-acid derivatives of the formula   are disclosed as possessing a surprising selective herbicidal activity. Methods are disclosed for combatting weeds in mono- and dicotyledoneous cultures such as cereals, corn, rice, soja and cotton, which comprise applying to the locus to be protected from weeds a dosage of from 0,1 to 10,0 kilograms per hectare of the above compounds.
Patent CA-1079242-A (CA)
Inventor: VAN DER HARST PIETER A
IPC: E01C9/04
Filed: 1978-03-14
Granted: 1980-06-10
Abstract: "Railway level crossing"          ABSTRACT OF THE DISCLOSURE      A railway level crossing (grade crossing) is described in which the road surface between the rails is, at least adjacent the rails, provided by flexible plates, e.g. rubber plates. The plates extend right to the rails and under their edge portions adjacent the rails are resilient support means which allow the plate to flex downwardly when engaged by the flange of a wheel passing on the rail. The resilient support may be a gas-filled tube extending parallel to the rail.
Patent CA-1076672-A (CA)
Inventor: JOHNSON DAVID W
IPC: H01R25/00
Filed: 1978-05-03
Granted: 1980-04-29
Abstract: CONNECTOR FOR TELEPHONE CORDS Abstract of the Disclosure The invention is to a connector for connecting end-to-end line cords of telephone sets, to provide for joining standard lengths of line cord to give increased mobility to telephone sets where miniature plugs and jacks are used.  The connector is double ended, having a central body member with conductors extending longitudinally in grooves in a lower surface, the conductors bending up and over the top surface, the conductor ends extending inwards towards each other.  A top member fits over the top of the central member and has comb-like members for aligning the ends of the conductors.  A cover fits over the bottom of the central member, and at each end of the connector is an aperture profiled to accept a miniature plug, the contacts on the plug contacting ends of the conductors.                             - i -
Patent CA-1107721-A (CA)
Inventor: KAISER EMIL T
IPC: C07C67/00
Filed: 1978-05-09
Granted: 1981-08-25
Abstract: SYNTHESIS OF STEROIDS                    ABSTRACT OF THE DISCLOSURE         The synthesis of 25-hydroxycholesterol from animal bile starting materials in which hyodeoxycholic acid or an ester thereof is converted to the 3.beta.-hydroxy-5-cholenic acid alkyl ester, and then converted to 3.beta.-hydroxy-25-cyano-5-cholene by a series of steps in which the sterol nucleus is stabilized by use of a 3.alpha.,5.alpha.-bridge sometimes called an i-steroid configuration, and the carbon chain then extended from the carbon at the 24-position to a cyanide group at the 25-position.  The compound so formed is subjected to a series of reactions by which it is transformed into 25-hydroxy-7-dehydrocholesterol which may then be irradiated with ultra-violet light to 25-hydroxycholecalciferol.  The invention discloses new and improved processes for preparing these end products and also the compounds formed as intermediates and processes for preparing these intermediates.
Patent CA-1087099-A (CA)
Inventor: PENSAK PHILIP
IPC: A61K/
Filed: 1978-05-19
Granted: 1980-10-07
Abstract: ABSTRACT           A dentifrice which is stable in an unlined aluminum tube comprising alpha-alumina trihydrate polishing agent and which has a pH of about 6.5-8.0, which dentifrice contains an acidifying agent consisting essentially of saccharin acid.