baber/WOPTO huggingface dataset:
Patent CA-1099110-A (CA)
Inventor: LONG DAVID M
IPC: F24F9/00
Filed: 1977-05-10
Granted: 1981-04-14
Abstract: FORMING LEVEL AIR CONDITIONING SYSTEM                    Abstract of the Disclosure An improved method and apparatus for the formation of glass fiber strands is disclosed.  One aspect of the invention includes isolating the filament formation level of a double level glass strand forming and collecting operation by creating a positive air pressure in the room containing the filament and strand formation region such that only directed conditioned air enters the room.  Due to the net positive air pressure within this room, air flows from the room through any openings rather than air entering the room from the openings.          In a second aspect of the invention, conditioned air is directed to each filament forming bushing horizontally at a desired flow rate to help maintain a consistent environment around the bushing and thus improve filament formation.
Patent CA-1069297-A (CA)
Inventor: PEREZ JOSE M
IPC: A43B13/14
Filed: 1977-06-06
Granted: 1980-01-08
Abstract: ATHLETIC TRAINING SHOE                  ABSTRACT OF THE DISCLOSURE           An athletic shoe constructed so as to maintain the wearer's heel out of contact with the ground is beneficial both for training and for competitive uses.
Patent CA-1079807-A (CA)
Inventor: CARMODY JOSEPH P
IPC: G01R27/14
Filed: 1977-07-08
Granted: 1980-06-17
Abstract: APPLICATION OF JOSEPH P. CARMODY     RESISTANCE MEASURING CIRCUIT                           ABSTRACT    A resistance measuring circuit for providing an output signal which is linearly proportional to the difference in resistance between two unknown resistances.  The measuring circuit includes a constant current source for driving both unknown resistances in a series circuit by connecting the series circuit in a feedback loop of an operational amplifier.  The volt-age drops across the unknown resistances are applied to the inverting and non-inverting inputs of a second operation ampli-fier used as a differential amplifier, respectively.  The effect of leadwire  resistance to the unknown resistances is cancelled by the subtractive operation of the second amplifier.          Further, the first amplifier is supplied with a variable input signal to provide a zero suppression capability for the linear output signal.
Patent CA-1094292-A (CA)
Title: Procede de decomposition thermique du chlorure d'aluminium hexa-hydrate par chauffage indirect
Inventor: REH LOTHAR
IPC: B01J8/24
Filed: 1977-08-12
Granted: 1981-01-27
Abstract: Procédé de décomposition du chlorure d'aluminium hexahydraté et de calcination de l'alumine, qui se caractérise par le fait que la majeure partie du chlorure d'aluminium hexahydraté est décomposée par chauffage indirect dans un réacteur à lit fluidisé, que le produit résultant de la décomposition est calciné dans un réacteur à lit fluidisé expansé, puis que les fractions solide et gazeuse provenant de la calcination sont séparées dans un réacteur à temps de séjour, qu'une partie des matières solides du réacteur à temps de séjour est renvoyée dans le réacteur de calcination pour y établir une concentration déterminée de la suspension constituée par le gaz et de solide, tandis que l'autre partie des matières solides est envoyée dans un refroidisseur.  Ce procédé permet d'obtenir, avec la production d'une alumine de haute qualité, un gaz ayant une teneur en Hcl relativement élevée.
Patent CA-1106539-A (CA)
Inventor: COOPER GLENN D
IPC: C08G65/00
Filed: 1977-08-19
Granted: 1981-08-04
Abstract: ABSTRACT OF THE DISCLOSURE           A process is disclosed for the oxidative coupling of a 2,6-di-substituted phenolic monomer with a complex copper-diamine catalyst which is moderated by the addition of a small amount of water.
Patent CA-1092731-A (CA)
Title: Universal chlorinator module
Inventor: PRICE KENNETH E
IPC: C02F1/00
Filed: 1977-09-07
Granted: 1980-12-30
Abstract: ABSTRACT     A chlorinator is used in a swimming pool system having a filter assembly and a pump for circulating water from the pool through the filter assembly and back to the pool.  The chlorinator comprises a housing which defines therein a selectively-openable airtight chamber adapted for receiving therein a quantity of water-soluble dry chlorine material. A water inlet port opens to the chamber essentially at the bottom end thereof, and a separate water outlet port opens from the chamber also essentially at the bottom of the chamber.  The inlet port is adapted for connection thereto of an adjustably valved duct by which water to be chlorinated can be applied to the inlet port.  A check valve is coupled to the outlet port to prevent water flow through the outlet port to the chamber.  The chlorinator is connectible in a pool system in parallel to the filter assembly, for example.
Patent CA-1080551-A (CA)
Inventor: HOLDIMAN JOE W
IPC: E06B1/60
Filed: 1977-09-20
Granted: 1980-07-01
Abstract: ABSTRACT OF THE DISCLOSURE           Disclosed is a corner clip for connection to outwardly extending fins from a first and a second side of a window product.  The clip includes a base plate having a first leg integral with and angularly disposed with a second leg, the first leg being defined by an innerside and an outerside and having an axis extending generally parallel to the first side of a window product.  The second leg is defined by an innerside and an outerside having an axis extending generally parallel to the second side of a window product.  A first lip and a second lip extend upwardly along the innersides of the respective first leg and the second leg from the base plate, for engaging a slot between a fin and the respective first and the second sides of a window product.  A first channel and a second channel each extend along a respective outerside of the first leg and the second leg, the openings of the first channel and the second channel facing the first lip and the second lip, respectively.          The channels are adapted to receive the outwardly extending fins, the length of the first channel being at least as long as the length of the first lip and the length of the second channel being at least as long as the length of the second lip.
Patent CA-1080796-A (CA)
Title: Convertisseur statique modulaire pour machines a reluctance variable
Inventor: DEPLANTE MICHEL
IPC: H02P25/08
Filed: 1977-10-12
Granted: 1980-07-01
Abstract: L'invention concerne un convertisseur statique modulaire pour machine à réluctance variable, notamment un convertisseur à fréquence variable associé à une machine à réluctance variable à effet VERNIER.  Le convertisseur comporte, associé à une source de courant de type connu en soi, susceptible de fonctionner aussi bien en générateur qu'en récepteur en étant pilotée en fonction de la vitesse ou du couple de la machine, au moins une paire de modules élémentaires de commutation identiques montés en série et un module élémentaire comportant deux dérivations reliées en parallèle à la source par une de leurs extrémités et reliées, par leurs autres extrémités, à un point commun avec les extrémités homologues de l'autre module de commutation identique monté en série.  Chacune des dérivations alimente respectivement un enroulement polaire élémentaire de la machine à réluctance variable et comporte un thyristor et une diode montés en série dans le sens passant vers l'enroulement polaire.  Les armatures d'un condensateur sont respectivement raccordées sur chacune des dérivations entres les thyristors et les diodes. Les thyristors des deux modules élémentaires sont commandés par une électronique de commande, pilotée par un codeur interne et synchronisée avec une électronique de commande de la source de courant.
Patent CA-1102628-A (CA)
Inventor: WIESBOECK ROBERT A
IPC: A01C23/02
Filed: 1978-04-10
Granted: 1981-06-09
Abstract: PROCESS AND APPARATUS FOR DISTRIBUTING COLD AMMONIA                 ABSTRACT OF THE DISCLOSURE An initial stream of cold liquid ammonia at substan-tially ambient or atmospheric pressure is divided into a plural-ity of smaller streams by directing the initial stream downward against a substantially horizontal and substantially flat surface, the axis of the initial stream being substantially orthogonal to the plane of the flat surface.  The cold liquid ammonia is pref-erably produced by directing pressurized liquid ammonia into an expansion chamber to produce a mixture of cold liquid and gaseous ammonia at substantially ambient or atmospheric pressure and then separating the cold liquid ammonia from the cold gaseous ammonia.          The divided cold liquid ammonia is preferably applied by a plural-ity of spaced conduits to the soil where the cold, liquid ammonia is then covered by additional soil by means of a field cultivator to prevent loss of ammonia to the atmosphere.
Patent CA-1083396-A (CA)
Inventor: LEROUX YVES G
IPC: E01D19/06
Filed: 1978-04-24
Granted: 1980-08-12
Abstract: ABSTRACT OF THE DISCLOSURE            An expansion joint for mounting in the gap left between roadway sections, e.g. sections of a roadway bridge structure, to accommodate thermal expansion of the sections, is provided with at least one intermediate beam member extending in the gap across the width of the roadway and sealing strips of elastomeric material fitted between the roadway section edge structures and the intermediate beam.          The joint has a plurality of units spaced apart across the width of the roadway, each unit comprising a lazy tong link arrangement pivotally mounted to the edge structures of the two roadway sections and to the intermediate beam members and extending across the gap, so as to ensure that any expansion or contraction of the gap between the roadway sections is equally distributed among the various parts of the gap on each side of and between the intermediate beam or beams.  A spanning member is provided in each joint unit, which extends across the gap below the intermediate beam members and is slidable with respect to them and with respect to the roadway sections.  The lazy tongs link arrangement and the spanning member are both pivotable to a small degree with respect to each of the roadway sections, so as to accommodate relative height changes between them without damage to the structural parts.
Patent CA-1084366-A (CA)
Inventor: BERRIMAN LESTER P
IPC: F02M9/133
Filed: 1978-05-17
Granted: 1980-08-26
Abstract: AUTOMOTIVE EXHAUST GAS RECIRCULATION VALVE     Abstract of the Disclosure An exhaust gas recirculation valve for installation in the recirculation flow path between the exhaust and intake manifolds of an internal combustion engine.  A metering control in the form of an axially displaceable pintle is operative in the flow path of a throat body to form an annular convergent-divergent nozzle.          Pintle movement is responsive to predetermined engine variables to vary the throat flow area for continuously maintaining sonic gas flow therethrough.  By the pintle being disposed toward clos-ing the throat in a direction counter to the direction of in-coming gas flow, sonic flow can be maintained at high efficiency throughout the full range flow capacity required of the valve.     1a
Patent CA-1078763-A (CA)
Inventor: BAXTER DONALD J
IPC: F16D27/105
Filed: 1978-05-23
Granted: 1980-06-03
Abstract: ABSTRACT    The actuator assembly is a unitary structure compris-ing a self-braking rotary power unit and a spring clutch mounted on a frame and interconnected so the the spring clutch transmits the rotary driving force of the power unit to a load to thereby effect its movement in one direction, the power unit and spring clutch coacting when the power unit is inoperative to hold the load in a selected position. An electro-magnetic device coacts with the spring clutch to cause the spring to disengage and al-low the load to move in a direction opposite of the one direc-tion.
Patent CA-1114519-A (CA)
Title: Fifo look-ahead system
Inventor: GETSON EDWARD F JR
IPC: G06F5/10
Filed: 1978-05-25
Granted: 1981-12-15
Abstract: FIFO LOOK-AHEAD SYSTEM             ABSTRACT OF THE DISCLOSURE     A logic data control system including a first-in-first-out (FIFO) buffer predictor is provided for the transfer of data between a main memory unit and a peripheral control unit of a data processing system.  Data from main memory is stored into the input registers of the peripheral unit, and thereafter loaded into an array of data FIFOs for transfer to a peripheral storage device.  A predictor FIFO operates in parallel with the data FIFOs, and is loaded with a dummy or flag byte each time a data request is made to main memory.  When a data word is loaded into the data FIFOs, the input register of the pre-dictor FIFO is sensed.  If the flag byte in the predictor FIFO has dropped from the input register into the FIFO stack, a request is issued to main memory for an additional data word. When the data FIFO's are filled, the predictor FIFO also is filled and cannot generate an additional data request until a data byte has been unloaded from the data FIFOs to a peripheral storage device.  The input register to the predictor FIFO there-upon is emptied, and another data request may be made to main memory.
Patent CA-1096796-A (CA)
Inventor: CELMER WALTER D
IPC: A23K20/195
Filed: 1978-05-26
Granted: 1981-03-03
Abstract: ABSTRACT OF THE DISCLOSURE A new sulfur-containing polypeptide antibiotic produced by two strains of Streptosporangium under submerged fermentation condition is useful for the treatment of microbial infections and in improving feed utlilzation efficiency in ruminants.
Patent CA-1123914-A (CA)
Inventor: GYUGYI LASZLO
IPC: H02J3/16
Filed: 1978-06-20
Granted: 1982-05-18
Abstract: 47,478 VOLTAGE REGULATOR UTILIZING A               STATIC VAR GENERATOR               ABSTRACT OF THE DISCLOSURE         A voltage regulator is taught for maintaining the terminal voltage of a three phase transmission line at a fixed reference value.  The voltage regulator system utilizes the inductive reactance of the transmission line in conjunction with reactive current from a VAR generator to compensate for the voltage effect of line current as it flows through the inductive reactance.  The VAR generator is of the parallel capacitor-inductor type where the inductor is controlled by a thyristor switch. The firing angle for the thyrister switch is determined by a fast acting static control system which utilizes line-to-line voltage and line-to-ground voltage as an input.  A signal related to the latter voltages is pro-cessed and compared again t a reference.  The integrated difference thereof is utilized to determine the firing angle for the thyristor  switch.
Patent CA-1093520-A (CA)
Title: Mixture concentrator
Inventor: BLACK DONALD S
IPC: C02F11/121
Filed: 1978-10-31
Granted: 1981-01-13
Abstract: A concentrator or mixture separator usable, for example, for significantly increasing the amount of proppant in a formation-?acturing foam is disclosed. In a particular embodiment the concentrator or separator is comprised of a substantially horizontally extending vessel, a rotor rotatably mounted inside the vessel on a shaft and a motor for rotating the shaft. The vessel has a slurry intake at a forward end and a concentrated slurry discharge and proppant carrier discharge at the rearward end. Mounted on the shaft near the slurry intake is a cylindrical stabilizer which is for imparting a spin to the incoming slurry.  Also mounted on the shaft, downstream of the stabilizer is an intake impeller assembly which can be comprised of a plurality of annular intake impellers, a discharge assembly which can be comprised of a plurality of annular discharge impellers, and a connecting housing therebetween. A substantially proppant-free carrier is drawn into the intake impellers and axially discharged thereby into a central channel while the concentrated slurry is axially forced by the higher intake pressure along an outer channel forward between the rotors and the vessel. The discharge impellers discharge the carrier and the concentrated slurry is discharged out the slurry discharge. In a particularly preferred embodiment, the intake impeller assembly has a plurality of intake channels which spiral inwardly in the direction of impeller rotation so that an approximated free-vortex flow pattern is obtained and so that the fluid being drawn into the impeller must have a tangential velocity component and be travelling faster than the rotor.
Patent CA-1088270-A (CA)
Inventor: STEELE WALLACE A
IPC: E04B1/94
Filed: 1978-11-08
Granted: 1980-10-28
Abstract: ABSTRACT           Printed wood paneling having a reduced flame spread rating is provided by embossing the wood surface to be finished to depress in a relatively uniform pattern of depressed portions at least about 20% up to about 70% of the surface area of the wood to a depth of at least about 0.01 inch, and these depressed portions are then filled with an intumescent fire retardant filler and the excess filler is substantially removed from the undepressed portions of the wood surface.  The embossed panel with the depressed portions thereof filled with intumescent fire retardant filler is then finished in conventional fashion by applying a filler, sanding, base coating, printing, and usually embossing.  A clear topcoat is then applied to protect the finish.  When a flame impinges upon the finished surface, the heat is transmitted to the buried intumescent material causing expansion of this material and the production of a uniform pattern of raised portions of difficultly burnable foam insulating material which retards the flame spread rate.
Patent CA-1103501-A (CA)
Inventor: GOEKE ALFONS
IPC: B23B5/12
Filed: 1978-12-21
Granted: 1981-06-23
Abstract: Abstract of the Disclosure Elongated pipes are internally peeled by positioning a machining head within the pipe while providing relative rotational and longitudinal move-ment between the pipe and machining head.  An external clamping force is applied to the pipe generally radially of its longitudinal axis and in substantial alignment with the machining head for minimizing vibration of the pipe during the machining operation.
Patent CA-1126441-A (CA)
Title: Poly-2-pyrrolidone and a process for its preparation
Inventor: BOUR EDMOND H J P
IPC: C08G69/00
Filed: 1979-01-16
Granted: 1982-06-22
Abstract: FOR ITS PREPARATION                     ABSTRACT OF THE DISCLOSURE      A new type of poly-2-pyrrolidone suitable for melt spinning and a process for its preparation.  The new poly-2-pyrrolidone is characterized in that the polymer in the virgin state has a relative viscosity (1 gram of polymer in 100 ml of 96% sulphuric acid at 20°C) of between 2.2 and 7.0, shows a weight loss of less than 5% by weight when heated from 20°C to the onset tempera-ture of thermal degradation at a rate 4°C per minute, the ratio between the relative viscosities after and before melt spinning ranges between 0.50:1 and 0.95:1, and the relative viscosity after melt spinning is at least 1.90.  The new poly-2-pyrrolidone is prepared by polymerization of 2-pyrrolidone in the presence of an anionic catalyst and an accelerator wherein N-(2 capro-lactim)-caprolactam is used as the accelerator in an amount of between 0.05 and 5.0 mole percent relative to the monomer, and the polymerization is carried out at a temperature of between about 25 and 70°C until a rela-tive viscosity of at least 2.2 is obtained.
Patent CA-1096240-A (CA)
Inventor: CHIETTI GIOVANNI
IPC: D05B23/00
Filed: 1979-01-17
Granted: 1981-02-24
Abstract: ABSTRACT OF THE DISCLOSURE:         Apparatus comprising a plurality of shaped bodies carried on a rotable structure.  On the end of each body one edge can be manually placed of a tubular element of textile material forming the leg of a stocking.  During -the rotation of said structure, each body having said element hanging the-reform, is positioned in front of and adjacent to the free end of a mounting tube in a semiautomatic sewing machine.  At this position an elongated rod is automatically operated, such a rod being provided with a hook member separaring the edge of the tubular element from the shaped 'body, overturning and trans-ferring it onto the end of the pounting tube and causing it to, slide along the tube, where it is caught by the gripping mem-bers the sewing machine is fit-ted with, the machine then pro-viding for sewing the other end of the tubular element forming the tip of a stocking.
Patent CA-1129161-A (CA)
Title: Delignification and bleaching process  and solution for lignocellulosic pulp with  peroxide in the presence of metal additives
Inventor: ECKERT ROBERT C
IPC: D21C9/16
Filed: 1979-01-18
Granted: 1982-08-10
Abstract: Abstract An improved process and solution for delignifying and brightening lignocellulosic pulp.  The solution comprises from about 0.1 to about 5% by weight, based on oven-dried pulp of a peroxide and about 0.5 to about 20 mole percent, based on the moles of peroxide, of a metal ion selected from the group consisting of tungsten, molybdenum, chromium, osmium and selenium.  The preferred process of this invention com-prises contacting a lignocellulosic pulp with about 0.5 to about 20 mole percent, based on moles of peroxide, of a metal ion selected from the group consisting of tungsten, molybdenum, chromium, osmium and selenium at a temperature below about 50°C; adjusting the pH of the resultant pulp slurry to between about 1 and about 7; adding 0.1 to about 5% by weight based on oven-dried pulp of peroxide and effecting pulp delignification and brightening at about 30°C to about 100°C until most of the peroxide has been consumed.
Patent CA-1127858-A (CA)
Inventor: JUNG JOHANN
IPC: A01N43/58
Filed: 1979-01-25
Granted: 1982-07-20
Abstract: O.Z. 33,049 ABSTRACT OF THE DISCLOSURE: Process for reducing transpiration in monocotyledonous crop plants, especially Indian corn, by treating the plants with prior art pyridazone derivatives, especially 1-phenyl-4-dimethylamino-5-chloropyridazone-(6).
Patent CA-1088031-A (CA)
Title: Space dividers
Inventor: MARTIN THOMAS J
IPC: B65D5/49
Filed: 1979-03-05
Granted: 1980-10-21
Abstract: ABSTRACT There is provided a space divider which is made from a blank by a process in which various panels and tabs are defined by score lines and lines of severing, and in which the automatic machine which makes the space divider from the blank need only fold outer portions of the blank inwardly, and does not have to go through a zig-zag or fold-back operation.  This means that a simpler mechanism can be utilized.  There is also provided a space divider which utilizes less material than conventional space dividers, and which can be made of a depth less than the total depth of a carton while still being utilized both for the shipping of inverted empty bottles, and for the shipment of filled upright bottles.  This is accomplished through the provision of registering fingers on the space divider, and a pair of apertures in the side walls of the carton, with which the fingers may alternatively register.