baber/WOPTO huggingface dataset:
Patent CA-1077486-A (CA)
Inventor: WETZEL ROLAND H
IPC: C09B67/20
Filed: 1977-12-06
Granted: 1980-05-13
Abstract: ABSTRACT      Process for converting crude quinacridone to  pig-mentary form by milling crude quinacridone in the presence of from 5% to 50% by weight of aluminum sulfate, based on the weight of the crude quinacridone.  The resulting quin-acridone exhibits high masstone transparency in coating compositions.
Patent CA-1054007-A (CA)
Inventor: RASMUSSEN HENRY P O BOX KENORA
IPC: F24B7/02
Filed: 1977-12-28
Granted: 1979-05-08
Abstract: ABSTRACT OF THE DISCLOSURE             A heating apparatus is disclosed wherein a combustion chamber which contains the fuel to be burned is located adjacent to an air heating chamber.  Conduit means communicate from the air heating chamber to the combustion chamber for the purpose of leading air, which has been heated within the air heating chamber, into the combustion chamber.  Blower means draw ambient air from the space surrounding the heater into the air heating chamber whence it is blown through the conduit means into the combustion chamber to promote efficient combustion of the fuel.
Patent CA-1083052-A (CA)
Inventor: QURAISHI ABDUL H
IPC: F16L15/04
Filed: 1978-01-06
Granted: 1980-08-05
Abstract: "TUBULAR ELEMENT END PROTECTORS"                   ABSTRACT          End protectors for inter alia the threaded ends of oil-well pipe assemblies.   One such end protector comprises a urethane member moulded integrally with and bonded to a steel tubular member of uniform end-to-end cross-section, the protector engaging sealingly against the pipe assembly across transverse surfaces.   Another such end protector comprises a foamed or cellular resilient member engaging sealingly against the pipe assembly across transverse surfaces. Yet another such end protector comprises a resilient member having two axially spaced spaces, other than threads, extending in planes transverse to the axis of. the and protector and adapted to engage sealingly against corresponding surfaces of the tubular element.
Patent CA-1056217-A (CA)
Inventor: MAZZONI RENATO J
IPC: E06B3/28
Filed: 1978-02-16
Granted: 1979-06-12
Abstract: ABSTRACT The invention relates to an architectural glazing unit for converting installed glazing to multiple glazing, comprising no more than one transparent pane, a spacer element adjoining marginal portions of a major surface of the pane around the perimeter of the pane and spaced from the peripheral edges of the pane and a body of at least partially uncured poly-meric sealant adhered to the major surface between the spacer element and the peripheral edges of the pane around the perimeter of the pane.  The sealant has a dimension normal to the major surface greater than that of the spacer element, the sealant having a moisture vapor transmittance of less than about 15 grams of water per 24 hours per square meter for 1 mil thickness and, at room temperature, is coherent and tacky but flowable under pressure.  The unit provides for easier installation and a more effective and longer lasting multiple glazed product.
Patent CA-1064443-A (CA)
Inventor: LAZERAND JEAN
IPC: B31B50/86
Filed: 1978-02-21
Granted: 1979-10-16
Abstract: Abstract of the Disclosure A cardboard blank for producing a parallel-sided packing has a longitudinal alignment of four generally quadrangular side panels articulated in succession in pairs by parallel transverse fold lines.  Extensions of the side panels provide closing flaps located laterally beyond longitudinal fold lines.  One of the flaps has ears on two opposed lateral edges, these ears being extensions of the flap.  Each ear is separated from the flap by a fold line perpendicular to an adjacent longitudinal fold line.  A strip is fastened by its ends to the ears and extends in a flat condition over said one flap from one eat to the other.  By folding the ears over against the flap and fastening the folded-over ears to the flap, the free median part of the strip forms a handle projecting from the flap.
Patent CA-1101946-A (CA)
Inventor: WAGEMAKERS ADRIANUS J
IPC: H01G5/04
Filed: 1978-03-02
Granted: 1981-05-26
Abstract: PHN. 8700.     ABSTRACT:           A variable capacitor comprising a lower plate and an upper plate which are made of a synthetic material which is suitable for ultrasonic welding, said plates being provided with a number of engaging spacer columns which are integral with the plates and which are connected to each other by ultrasonic welding.
Patent CA-1093073-A (CA)
Inventor: WALSER ARMIN
IPC: A61P21/02
Filed: 1978-03-10
Granted: 1981-01-06
Abstract: Abstract Novel benzodiazepine derivatives of the formula   A   wherein Z represents the group R2?=N- or Y=?-?-R7, R1 ,R1 represents hydrogen, halogen or trifluoromethyl, R2 represents lower alkylthio, lower alkylsulfinyl, lower alkylsulfonyl, halogen, lower alkylamino or lower alkoxy, R3 represents hy-drogen, the group -COOR4 or -CONR5R6, R4, R5 and R6 represent independently hydrogen or lower alkyl, X represents hydrogen or halogen, Y represents an oxygen or sulfur atom and R7 represents lower alkyl or hydrogen, with the provisos that a) when Y represents a sulfur atom then R7 represents hydrogen, b) when R2 represents lower alkyl sulfonyl and R3 represents hydrogen then the nitrogen atom in 5-position bears an oxygen atom and c) when R2 represents lower alkylamino then R3 represents the group -CONR5R6 wherein R5 represents hydrogen and R6 repre-sents lower alkyl, and pharmaceutically acceptable salts thereof as well as a pro-cess for preparing same are described. These novel benzodiazepine derivatives are useful as anxiolytics, sedatives, muscle rela-xants and anti-convulsants
Patent CA-1087892-A (CA)
Inventor: FARRINGTON ALAN
IPC: D21C3/02
Filed: 1978-04-27
Granted: 1980-10-21
Abstract: ABSTRACT           An improved alkaline lignocellulosic pulping process wherein improved colour in the resultant pulp is obtained by using an excess of alkali based on the lignocellulosic material.          Improved pulp strength is obtained by operating the delignifi-cation process at lower temperatures than normal generally from 100°C to 160°C.   Both of the above improvements are enhanced and pulping times are reduced if the pulping liquors additionally contain a quinonoid or hydroquinonoid compound or tautomer thereof.
Patent CA-1127748-A (CA)
Title: Apparatus for the generation of acoustic signals  in marine environments
Inventor: BOUYOUCOS JOHN V
IPC: G01V1/38
Filed: 1978-09-25
Granted: 1982-07-13
Abstract: Abstract of the Disclosure A source (10) is capable of generating acoustic signals underwater at high cycling rates for providing seismic signals having controlled amplitude and spectral shape at precisely timed intervals for marine geophysical exploration.  The source (10) has a pair of radiating pistons (12, 14) slidingly mounted within a cylindrical sleeve (40) having radial webs (44, 46).  Axial shafts (90, 92) extend outwardly from the piston (12, 14) and support the pistons (12, 14) in the webs (44, 46).  The pistons (12, 14) and sleeve (40) define a first chamber (84) between the pistons (12, 14), which, under static conditions, contains a low pressure gas.  The shaft (90) on at least one piston (12) extends into a second chamber (120) in the hub of a web (46).  Pressurized hydraulic fluid applied to chamber (120) via a valve (150), causes the pistons (12, 14) to execute cycles in which they are first reset, then released to move towards each other to an impact position because of the ambient hydrostatic head.  Upon impact, they rebound away from each other due to the mass-spring system defined by the pistons (12, 14) and the compressed gas in the first chamber (84).  The spring-mass system serves to cushion the impact end to shape the acoustic signal.  A control system (202, 231, 232) responsive to the acoustic signal, detects the impact of the pistons and provides precise control of the timing and duration of each operating cycle so as to generate acoustic signals having a desired amplitude and repetition rate.  After impact, the pistons are outwardly reset for the next cycle.  High cycling rates are possible because unwanted acoustic transients are absent.
Patent CA-1077684-A (CA)
Inventor: MATOVICH EDWIN
IPC: C01B32/05
Filed: 1978-10-02
Granted: 1980-05-20
Abstract: ABSTRACT A high temperature chemical reaction process is disclosed which is characterized by steps wherein an annular envelope of an inert fluid which is substantially transparent to radiation is generated, the envelope having substantial axial length and the interior of the envelope defining a reaction chamber.  At least one reactant is passed through the reaction chamber along a predetermined path substantially coincident with the longitudinal axis of the envelope.  High intensity radiant energy is generated at a point external to the reaction chamber and is collected, focused, and directed into the reaction chamber to coincide with at least a portion of the predetermined path of the reactants, sufficient radiant energy being absorbed within the reaction chamber to raise the temperature of the reactants to a level required to initiate and sustain the desired chemical reaction.  This process can be utilized to carry out high temperature chemical reactions such as the dis-sociation of methane to obtain carbon black and hydrogen.  Also disclosed is a reactor for carrying out said process, and which includes a reactor tube which is transparent to radiation, the tube having inner and outer walls between which is an annular chamber through which a coolant may be circulated, the inner wall defining the reaction chamber.  The reactor also includes a diffuser through which the inert fluid is directed into the reaction chamber to form the above-mentioned annular envelope, means for introducing a reactant into the reaction chamber, and means for generating the high intensity radiant energy.
Patent CA-1123117-A (CA)
Title: Rare earth or yttrium, transition metal oxide  thermistors
Inventor: LOGOTHETIS ELEFTHERIOS M
IPC: H01C7/04
Filed: 1978-10-25
Granted: 1982-05-04
Abstract: RARE EARTH OR YTTRIUM, TRANSITION METAL OXIDE         THERMISTORS                           ABSTRACT OF THE DISCLOSURE  Thermistors comprising transition metal such as iron, rare earth of the lanthanide series or yttrium, and oxygen exhibit sufficient independence to variation in oxygen partial pressure over a range of exhaust gas conditions of internal combustion engines as to make them particularly suitable for temperature compensation of oxygen sensors such as those derived from titania as well as temperature sensing in other oxygen varying environments.
Patent CA-1118121-A (CA)
Inventor: HAWKES DENNIS L
IPC: C02F11/04
Filed: 1978-10-31
Granted: 1982-02-09
Abstract: ABSTRACT      An apparatus for the anaerobic digestion of natural organic waste comprises a feed tank, a digester and an outlet talk.  There is further provided feed means which feeds waste to be digested from the feed tank to the digester at an adjustable continuous rate.          A gas pump may be used to recirculate from the top of the digester through a diffuser to the bottom of the digester.  A suitable gas pump comprises a container partially filled with liquid so as to provide a space above the liquid surface and within the container sealed by the liquid from the exterior of the container, pumping means being provided in the said space.
Patent CA-1115636-A (CA)
Title: Bruleur
Inventor: BOURBON RAYMOND
IPC: F23D11/10
Filed: 1978-10-31
Granted: 1982-01-05
Abstract: PRECIS DE LA DIVULGATION:           Brûleur perfectionné à vaporisation de liquide combustible, comportant:  une tête de combustion, des moyens d'amenée d'air sous pression dans un conduit relié à la tête de combustion, une enceinte de vaporisation connectée à la tête de combustion où ledit combustible arrive sous forme de vapeurs pour se mélanger à l'air de combustion, et des moyens pour amener le combustible sous forme de goutelettes ou de fines particules à l'enceinte de vaporisation, caractérisé en ce que les moyens d'amenée du combustible sous forme de goutelettes sensiblement sans pression comportent:  une cham-bre cylindrique se terminant par un convergent débouchant sur une génératrice de la paroi de ladite enceinte de vaporisation, des moyens pour alimenter le fuel liquide sensiblement à pres-sion atmosphérique au convergent dont l'axe correspond sensi-blement à l'axe de la chambre cylindrique, et des moyens pour amener un courant d'air tourbilionnaire de pulvérisation au niveau du col du convergent qui débouche sur la paroi de la chambre.
Patent CA-1112480-A (CA)
Inventor: SCHWELLENBACH DONALD D
IPC: B06B1/16
Filed: 1978-11-29
Granted: 1981-11-17
Abstract: VARIABLE MECHANICAL VIBRATOR            Abstract of the Invention A variable mechanical vibrator includes a first eccentric weight fixed to a rotatably mounted shaft.  A second eccentric weight is rotatably mounted on the shaft, and the two weights are rotated together under control of mating engage-ment abutments, one carried by the shaft and one carried by or comprising a surface of the second eccentric weight.  In one embodiment, first and second prime movers are used to rotate the shaft and the second eccentric weight, respectively; and when primary rotation of the shaft is effected by the first prime mover, the first and second eccentric weights are diametrically oppositely aligned with respect to one another on the shaft providing a balanced operation.  In this mode of operation, the abutment carried by the shaft drives the abutment on the second weight to rotate such weight set with the shaft.  A second mode of operation is effected under control of the second prime mover which rotates the second eccentric weight to a point where the engagement abutments engage one another in a position where the second eccentric weight and the first eccentric weight are substantially aligned with one another on the shaft to create an unbalanced condition.  In this mode, the abutment on the second eccentric weight drives an abutment affixed to the shaft to rotate the shaft with the second weight.  Another embodiment uses only a single prime mover, and changes in the relative positions of the two weights are effected by static and rotational inertia as the prime mover is speeded up and slowed down.
Patent CA-1127680-A (CA)
Title: Device for sealing an annular opening between  a shaft and housing surrounding the shaft
Inventor: DERMAN KARL-GUSTAV
IPC: F16J15/40
Filed: 1978-12-22
Granted: 1982-07-13
Abstract: ABSTRACT     A device for sealing an annular space between an inner part, preferably a shaft, and an outer part surrounding said inner part, said parts being rotatable in relation to each other, comprising a sealing element positioned in the annular opening and sealingly connected with one if said parts and having a scaling surface adapted to cooperate with an opposing sealing surface in the outer of said parts, and a device for supplying a pressure fluid to a clearance space between said sealing surfaces at a pressure which is higher than the pressures in the spaces at each side of the sealing element, wherein the sealing surfaces have the shape of rotational surfaces inclined in relation to the axis thereof, for example conical surfaces, and that the sealing surfaces are in such a way displaceable in relation to each other that the width of the clearance space between the sealing surfaces is at least partially determined by axial movement of the sealing surfaces in relation to each other.
Patent CA-1147456-A (CA)
Inventor: RAVIZZA RAYMOND F
IPC: G05D3/12
Filed: 1979-01-24
Granted: 1983-05-31
Abstract: ABSTRACT OF THE DISCLOSURE         In an apparatus for automatically maintaining a transducing head assembly on the proper track, which is particularly adapted for a helical scan recording and/or reproducing apparatus capable of providing special motion effects, an automatically compensated movable head servo is disclosed.  The apparatus is of the type which utilizes transverse positioning of the transducing head assembly to accurately follow a track during reproducing and, at the completion of the track, to properly position the head in position to either play the next adjacent successive track, replay the same track or play another track so that the appropriate special motion effect is achieved.          Proper tracking is maintained by applying a small oscilla-tory motion to the head to cause it to vibrate laterally of the track, examining the resulting modulation of the reproduced signal's envelope to generate a tracking error correction signal and applying the error correction signal to the head assembly.  The reference signal employed in the generation of the tracking error correction signal is automatically phase synchronized in response to the head vibrations to correct errors introduced to the tracking error signal as a result of phase changes intro-duced to the modulation of the reproduced signal's enve-lope by effects other than mistracking by the head.
Patent CA-1111659-A (CA)
Inventor: ROSOF BARRY H
IPC: C22B1/00
Filed: 1979-02-05
Granted: 1981-11-03
Abstract: ABSTRACT OF THE DISCLOSURE            Disclosed is a process for recovering valuable metals from scrap including the steps of melting the initial scrap feed, carburizing the melt, solidifying the carburized melt, and re-covering the valuable metals from the resultant material by an acid or ammoniacal leaching step.
Patent CA-1124944-A (CA)
Title: Complexes of polyoxazolines or polyoxazines  and halogens, interhalogens or pseudo-halogens  and process for preparing same
Inventor: CHAMBERLIN THOMAS A
IPC: C08L79/00
Filed: 1979-03-06
Granted: 1982-06-01
Abstract: Abstract of the Disclosure Novel solid complexes of 2-oxazoline and 2-oxazine polymers and halogens, interhalogens or pseudo-halogens are prepared by contacting a poly-2--oxazoline or poly-2-oxazine whose backbone comprises a plurality of ring-opened units of an oxazoline or oxazine monomer of the general formula   Wherein R and R1-R4 are each independently hydrogen, alkyl, aralkyl phenyl or inertly-substituted phenyl and n is zero or one with a halogen, interhalogen or pseudo-halogen.  The complexes are soluble in a vari-ity of conventional solvents (o 9 , water, methylene chloride, acetonitrile, methanol, tetrahydrofuran and isopropanol).
Patent CA-1132787-A (CA)
Title: High fire point dielectric insulating fluid having  a flat molecular weight distribution curve
Inventor: OLMSTED JOHN H
IPC: C10N20/04
Filed: 1979-03-14
Granted: 1982-10-05
Abstract: Abstract of the Disclosure A liquid composition and method for forming the composition, the composition being intended for use in an oil-filled electrical apparatus to minimize the detrimental effects that can occur during high fault conditions which oil composition is biodegradable and formed from natural hydrocarbons and synthetic hydrocarbons which when combined form a flat pseudo-rectangular molecular weight distribution curve.
Patent CA-1119258-A (CA)
Inventor: DILLS RAYMOND L
IPC: H05B6/68
Filed: 1979-05-25
Granted: 1982-03-02
Abstract: ABSTRACT OF THE DISCLOSURE         In a cooking oven supplied from a power source of limited capability, a time ratio control system alternately energies a microwave energy generating system and an electrical resistance heating element a plurality of times during each cooking operation to, in effect, time share the available power. The resultant concurrent microwave and electrical resistance provides improved cooking results when the power source capability is limited.
Patent CA-1124146-A (CA)
Title: Injector valve with contoured valve seat  and needle valve interface
Inventor: CLAXTON WILLIAM B
IPC: F02M61/18
Filed: 1979-05-30
Granted: 1982-05-25
Abstract: 580?78-0908 INJECTOR VALVE WITH CONTOURED VALVE SEAT AND NEEDLE VALVE INTERFACE       ABSTRACT    An injector valve having a stable fuel flow while metering  "single point"  fuel volumes  is disclosed.   A metering portion of the injector valve comprises a needle valve and a valve housing including a centrally located valve housing bore that terminates in a truncated conical valve  seat  and  cylindrical  metering  orifice.     A transitional  surface  connects  the  valve  seat  to  the metering orifice to gradually change the direction of fuel flow so separation and unstable flow will not occur.  The needle valve is concentrically reciprocal within the valve housing bore and closes the metering orifice with a valve tip having a closure surface mating with the valve seat. The valve tip narrows from the closure surface into a pintle which extends through the metering orifice and ends in a deflection cap which shapes the spray of the valve into a hollow-cone pattern.   The valve tip between the pintle and closure surface has a contoured surface that increases the flow area of the valve tip and valve seat interface to a plateau value downstream of the closure surface and then smoothly decreases the flow area from that value to where fuel exits the metering orifice.
Patent CA-1115385-A (CA)
Title: Remote-controlled automatic control  apparatus
Inventor: TSUBAKI TOSHIO
IPC: E05F15/20
Filed: 1979-06-14
Granted: 1981-12-29
Abstract: ABSTRACT OF THE DISCLOSURE         A remote-controlled automatic door control apparatus comprises a door, a driving unit for driving the door to open and close, connector means for connecting the driving unit to the door, and control means for controlling the door operation through the driving unit and including radio communication means having transmitter and receiver means.  A signal containing a specific code transmitted from the transmitter means is received by the receiver means and collated with a code set previously in the receiver means, and if they have a predetermined relationship with each other, an operation command is issued to the driving unit.  The transmitter means has at least means for setting a specific code, and said receiver means has means for storing the specific code transmitted from the transmitter means.  A signal switching means is further provided for actuating the collating means for collating the stored code with the signal from the transmitter means under normal conditions and storing the signal from the transmitter means in said memory means if required.
Patent CA-1137666-A (CA)
Title: Connecting circuit for a telephone line
Inventor: FERRIEU GILBERT M M
IPC: H04Q3/42
Filed: 1979-06-21
Granted: 1982-12-14
Abstract: PHF. 78.541C           ABSTRACT       A circuit for connecting a subscriber's line to an automatic telephone exchange comprising a pair of amplifiers whose outputs are connected to the wires of the telephone line and which are fed by a d.c. voltage supply source.  This supply source provides the telephone line with direct current via the amplifiers.  In prac-tice, the telephone line must be terminated by a symmetrical impedance of a prescribed value.  To this end the subscriber's circuit comprises current mirrors and an adding circuit for determining the weighted sum of the current flowing through one end through the other wire of the telephone line such that the sum current is inde-pendent of the longitudinal currents in the telephone line. By means of an impedance two anti-phase feedback voltages are generated at the inputs of the amplifiers, these ampli-fiers then having a symmetrical impedance at their outputs.
Patent CA-1142854-A (CA)
Inventor: ECKERT THEODOR
IPC: A61K31/16
Filed: 1979-06-26
Granted: 1983-03-15
Abstract: ABSTRACT OF THE DISCLOSURE     Novel compositions and the method of their use is disclosed.  The compositions and method of the invention are useful for treating seborrhea in mammals including humans. The compositions comprise cosmetically acceptable topical carriers having dispersed therein as the primary and essential active ingredient, medium chain-length fatty acids.