baber/WOPTO huggingface dataset:
Patent CA-1176825-A (CA)
Title: Appareillage perfectionne destine au lavage et a la  separation granulometrique de materiaux solides en  suspension
Inventor: ENTAT MARCEL
IPC: B01D11/02
Filed: 1982-08-30
Granted: 1984-10-30
Abstract: Appareillage perfectionné, destiné à permettre des opérations de lavage de matériaux solides en suspension dans une phase liquide pour en éliminer les matières solubilisées et/ou effectuer des séparations granulométriques précises de matériaux solides en suspension dans ladite phase, se composant d'une colonne verticale dans laquelle sont placés des plateaux perforés horizontaux, des moyens d'alimentation en suspension à traiter et en liquide de traitement et d'extraction de la suspension traitée ainsi qu'un dispositif pulsatoire. L'appareillage est caractérisé en ce que, pour une colonne comportant N plateaux perfores réellement implantés, ayant chacun une surface S, un coefficient de perforation p, rapport entre la surface totale des perforations et la surface dudit plateau, le dispositif pulsatoire délivrant la somme V des volumes transférés alternativement vers le haut et vers le bas par unité de temps, le liquide servant au lavage ou à la séparation granulométrique ayant une densité dn tandis que le liquide sortant par surverse a une densité do et que les matériaux solides en suspension ont une densité ds, g étant l'accélération de la pesanteur, on choisit un diamètre ? des perforations et une distance moyenne 1 entre ces perforations de telle manière que l'on règle un coefficient K1 associant les caractéristiques techniques de ladite colonne, défini par la relation <IMG> à une valeur au moins égale à 10 et de préférence comprise entre 20 et 300.
Patent CA-1206315-A (CA)
Inventor: HAHN GRANVILLE J
IPC: B29C51/18
Filed: 1982-09-03
Granted: 1986-06-24
Abstract: ABSTRACT OF THE DISCLOSURE           Disclosed is a process for the production of a hollow article comprised of a biaxially oriented thermo-plastic resinous material, comprising the steps of heating a sheet of thermoplastic material to a temperature above the orientation temperature of the thermoplastic material; clamping an area of the heated thermoplastic sheet between a first mold half and a second mold half, the first mold half containing a pre-form mold surface having a configuration predeteremined to provide for a uniform wall thickness of the hollow article to be formed, the surface being at a temperature of the thermoplastic material, and the second mold half having a cavity which corresponds to the shape of the hollow article to be produced; forcing the heated thermoplastic sheet by pressure differential into the first mold half against the surface; maintaining the thermoplastic sheet in contact with the surface for a period of time sufficient to bring the thermoplastic sheet to its orientation temperature; and forcing the thermoplastic sheet into the second mold half by means of a pressure differential which is sufficient to cause the thermoplastic sheet to conform with the cavity in the second mold half to form a hollow article with a force sufficient to substantially, molecularly orient the thermoplastic material in both the longitudinal and lateral directions.    The present invention also discloses apparatus for thermoforming hollow articles from a thermoplastic material, which apparatus includes a pre-form mold, a final mold, and a pressurized air system which utilizes six-way valving and a pressure surge system.
Patent CA-1206180-A (CA)
Inventor: SCARFFE MICHAEL F
IPC: B25J9/10
Filed: 1982-09-23
Granted: 1986-06-17
Abstract: ABSTRACT                  MECHANICAL HANDLING APPARATUS    A mechanical handling apparatus for point to point movement has utilisation grippers 25 driven from point to point by an arm assembly comprising a piston 22 and cylinder 21 arrangement in which the piston is in force balance until activated by a micro-processor 80.  The microprocessor 80 controls the energisation of an electrical solenoid of each of valves 63, 65, 70, 71, 72 and 77.      The grippers 25 are carried by a load beam 26, supported by bearings 28 and a selectively energisable brake 29 for resisting motion of the load beam is mounted on a lead screw 46.  The lead screw 46 is driven by a stepper motor 49, but is connected with the microprocessor 80 and the position of the load beam 26 and of the brake 29 is determined by a transducer 53.  In operation, the microprocessor permits energisation of the piston 22 to rapidly drive the load beam and hence grippers 25 toward a desired point within the capture range of the lead screw 46.  The brake 29 is applied to stop the load beam and final, accurate, positioning of the grippers 25 is performed by energising the stepper motor 49.
Patent CA-1184335-A (CA)
Inventor: SCHRECKENBERG MANFRED
IPC: C08G64/00
Filed: 1982-10-19
Granted: 1985-03-19
Abstract: Mixtures of polycarbonate elastomers, containing hydrogenated dimeric fatty acid esters as condensed units,  and polyolefines and, if appropriate, other polycarbonates A b s t r a c t The present invention relates to mixtures of polycarbonates containing hydrogenated dimeric fatty acid esters as condensed units, and polyolefines and, if appropriate, other high-molecular weight, aromatic thermoplastic polycarbonates.
Patent CA-1197725-A (CA)
Inventor: ALBISSER ANTHONY M
IPC: A61M5/142
Filed: 1982-10-26
Granted: 1985-12-10
Abstract: ROGERS, BERESKIN & PARR                    C A N A D A    TITLE: PERISTALTIC PUMPING SYSTEM AND METHOD     INVENTORS: ANTHONY MICHAEL ALBISSER            and WARREN SAMUEL JACKMAN            ABSTRACT OF THE DISCLOSURE           A tube assembly for a peristaltic pumping system is described. The assembly includes resilient inner and outer tubes of which the inner tube has a lumen along which liquid can be pumped by occluding the tube and causing the point of occlusion to progess along a length of the tube defining a pumping zone.  The outer tube fits closely around the inner tube and extends over said zone.  The tubes are free of attachment to one another over at least a substantial part of said zone so that the contacting surfaces of the respective tubes define an interface along which relative movement between the tubes can occur during pumping.  The tubes are secured together at at least one point along their lengths.  It has been found that abrasion of the innermost surfaces of the inner tube is minimized and that reduced con-tamination of the liquid being pumped and increased pump tube life can be expected as compared with conventional peristal-tic pump tubes.
Patent CA-1230769-A (CA)
Title: Method and an arrangement for the folding and sealing of the longitudinal edge of material web
Inventor: GLANS JAN-ERIK
IPC: B31F1/00
Filed: 1982-11-04
Granted: 1987-12-29
Abstract: ABSTRACT     In the manufacture of packing containers from laminated material contact between the inner layer of the material and the contents is avoided by doubling up the cut edges present in the packing container. It has proved to be difficult to perform a secure folding and sealing of the folded edge without damage to the material, since the outer, water-tight layer of the material consists of very thin, heat-sensitive thermoplastics. In accordance with the invention this difficulty is overcome by carrying out the folding and sealing of the edge of the material web gradually whilst at the same time supplying heat or glue. By supplying the sealing-promoting agent as late as possible during the course of folding, damage to the material as well as to the folding arrangement is avoided.
Patent CA-1196987-A (CA)
Inventor: ALLES HAROLD G
IPC: G06F3/042
Filed: 1983-02-10
Granted: 1985-11-19
Abstract: TOUCH POSITION SENSITIVE SURFACE            Abstract A touch sensitive device is arranged with substantially parallel surfaces inside which light from a synchronized source, such as a CRT, can become trapped by total internal reflection.  The screen is fitted with photodetectors which respond to the entrapment of light within the surfaces.  The device is compliant so that a touch of the device at a particular point will cause an inward deflection of the surface at that point.  The deflection causes light to become entrapped within the surface by total internal reflection thus making it possible, by comparing the photodetector output with the CRT raster position, to determine the exact surface position of the touch.
Patent CA-1196676-A (CA)
Title: Over-centered lock arrangement for office furniture  units
Inventor: SCHEERHORN DOUGLAS
IPC: E05C9/00
Filed: 1983-03-15
Granted: 1985-11-12
Abstract: OVER-CENTERED LOCK ARRANGEMENT FOR       OFFICE FURNITURE UNITS ABSTRACT OF THE DISCLOSURE An over-centered lock arrangement is provided for office furniture units, such as desks, credenzas and the like, that include one or more pedestals, having at least one closable compartment, in the nature of a drawer, a cabinet, et cetera, with a mechanism to lock the compartment closed, and a top extending the length of the unit.  A primary lock is mounted in the unit, and includes lock tumblers mounted in a plug or cylinder, which is rotatable between the locked and unlocked positions.  At least one lock slide is slidably mounted in the unit, and reciprocates to shift the compartment lock between locked and unlocked positions.  The cam lock assembly includes a crank arm connected with the tumbler cylinder, and an actuator arm having opposite ends pivotally connected with the crank arm and the lock slide at first and second pivot points, whereby rotation of the tumbler cylinder reciprocates the lock slide.  In the locked position, the first and second pivot points assume an over-centered relationship with respect to the axis of rotation of the tumbler cylinder, whereby external forces applied to the lock slide in a direction to force the lock open, urge the tumbler cylinder further toward the locked position for improved security, and to prevent damage to the lock tumblers.
Patent CA-1197238-A (CA)
Inventor: LEUSNER STEVEN J
IPC: C08B31/12
Filed: 1983-03-15
Granted: 1985-11-26
Abstract: PROCESS FOR HYDROXYPROPYLATING STARCH                           ABSTRACT      A process  for  making  propylene  chlorohydrin free,  hydroxypropylated starch wherein the excess propylene oxide is removed from the reaction mixture before neutralization of the starch.  This removal of the propylene  oxide prevents the formation of propylene chlorohydrin and thus aleviates the need for its removal.
Patent CA-1192538-A (CA)
Inventor: HALL JAMES E
IPC: C08F4/48
Filed: 1983-06-08
Granted: 1985-08-27
Abstract: Abstract A process and catalyst system is disclosed herein for the preparation of (co)polymers having a 1,2-microstructure of between about 20 and about 65 percent.  These (co)polymers are prepared in a hydrocarbon or non-polar solvent from a monomer system which contains at least one 1,3-diene monomer. The catalyst system which is employed in the produc-tion of the (co)polymer is a combination of an anionic initiator based on lithium and a phosphine oxide modifier which is substituted with three saturated heterocyclic rings, each hetero ring con-taining one nitrogen atom and either four, five or six carbon atoms.
Patent CA-1208878-A (CA)
Title: Electromagnetic stirring method and device for  molten metals, namely steel, in a continuous  casting process
Inventor: BIRAT JEAN-PIERRE
IPC: B22D11/12
Filed: 1983-06-14
Granted: 1986-08-05
Abstract: In a continuous-casting method molten steel is continuously introduced into a continuous-casting mold to form therein a strand having a free surface in the mold, a pair of relatively wide faces, and a pair of relatively narrow faces. The mold and the steel therein are continuously cooled to externally solidify the molten-steel strand while leaving same internally molten and the externally solid and internally molten strand is continuously withdrawn from the lower end of the mold. The core of the strand solidifies increasingly as it moves from the mold and terminates downstream of the mold at a pool bottom. At each of a plurality of locations spaced apart about 1 m to 2 m longitudinally along the strand between the mold and the pool bottom a respective magnetic field is formed with the fields passing through the strand from between about 3 m to 7 m beneath the free surface to about 2 m to 6 m from the pool bottom. These fields are displaced transversely of and generally parallel to the side faces of the strand with each field moving opposite to the adjacent field or fields so as to magnetically transversely and oppositely displace respective portions of the molten core of the strand.
Patent CA-1191025-A (CA)
Inventor: MORIN J DONALD
IPC: G01B3/34
Filed: 1983-06-24
Granted: 1985-07-30
Abstract: Inventor:  J. Donald Morin Title:  CORNEAL TEMPLATE SET     ABSTRACT OF THE DISCLOSURE           A template set for use in corneal size measure-ment.  The templates take the form of identical thin and flexible blades rounded at one end, and are arranged in a stack  in  parallel  planes.    The  blades  are  pivotally coupled together adjacent their opposite ends by a pivot pin which extends through the whole stack.  The pivot pin allows individual blades to be pivoted out of the stack for use.  Each blade has a circular opening adjacent the rounded end of the blade and the openings are graduated in size in predetermined increments from one end of the stack to the other.  Each blade is also visibly marked to indicate the size of the opening.
Patent CA-1190016-A (CA)
Inventor: LAIEWSKI STANISLAUS J
IPC: B29C69/00
Filed: 1983-07-22
Granted: 1985-07-09
Abstract: ABSTRACT OF THE INVENTION The present invention is directed to a method and apparatus for manufacturing a tray having an integral purge juice trap.  A particularly important step in the method is adhering a border area of a perforated thermoplastic  sheet to a raised shoulder area of a tray.  Preferably, this  step is accomplished simultaneously with the step of perforating the thermoplastic sheet.  A preferred method for adhering the border area to the shoulder area is heat sealing.
Patent CA-1198736-A (CA)
Title: Procede de decomposition d'un complexe ortho-benzoyl-  benzoique de fluorure d'hydrogene et de trifluorure  de bore
Inventor: DEVIC MICHEL
IPC: C01B7/19
Filed: 1983-08-31
Granted: 1985-12-31
Abstract: L'invention concerne un procédé de décomposition des complexes des acides orthobenzoylbenzoiques, éventuellement substitués, avec le fluorure d'hydrogène et le trifluorure de bore en vue d'obtenir d'une part l'acide orthobenzoylbenzoïque et d'autre part le fluorure d'hydrogène et le trifluorure de bore, caractérisé en ce que le complexe est soumis à l'action d'un solvant inerte, à une température d'au moins 20.degree.C, dans une colonne à distiller ayant un nombre de plateaux théoriques au moins égal à 8 et fonctionnant avec un reflux de solvant égal à 5 à 40 fois en poids le débit d'alimentation de la colonne. Ce procédé permet de récupérer le fluorure d'hydrogène et le trifluorure de bore qui ont servi de catalyseurs dans la synthèse de l'acide orthobenzoylbenzoïque sans entraîner de dégradation de ce dernier.
Patent CA-1220469-A (CA)
Title: Complexes organometalliques d'oestrogenes et leur  application au dosage des recepteurs hormonaux
Inventor: JAOUEN GERARD
IPC: G01N33/74
Filed: 1983-09-22
Granted: 1987-04-14
Abstract: "Complexes organométalliques d'oestrogènes et leur application au dosage des récepteurs hormonaux: Invention de : JAOUEN Gérard VESSIERES Anne TOP Siden CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) La présente invention concerne un complexe d'oestrogène, caractérisé en ce qu'il est constitué d'un oestrogène ou d'un dérivé d'oestrogène complexé par un composé organométallique comportant au moins un ligand carbonyl libre, ledit complexe d'oestrogène comportant au moins un radical hydroxy libre et aucun radical hydroxy phénoligue libre en .alpha. du site de fixation du composé organométallique es complexes selon l'invention sont utiles pour le dosage des récepteurs hormonaux.
Patent CA-1205821-A (CA)
Title: Process for preparing alpha-keto-carboxylic acids
Inventor: LEE JOHN Y
IPC: C07C59/347
Filed: 1983-12-14
Granted: 1986-06-10
Abstract: Abstract of the Disclosure PROCESS FOR PREPARING .alpha.-KETO-CARBOXYLIC ACIDS        A process for preparing .alpha.-keto-carboxylic acids by reacting an organohalide in a liquid solvent medium with carbon monoxide at elevated temperature and eleva-ted pressure in the presence of a catalytic amount of a metal carbonyl compound and an alkali metal inorganic base or an alkaline earth metal inorganic base charac-terized by utilizing as the organohalide a compound of the formula:                         RX   wherein X represents a halogen atom and R is a primary or secondary alkyl group.
Patent CA-1215164-A (CA)
Inventor: REYNARD JOHN M
IPC: H04R7/06
Filed: 1984-01-06
Granted: 1986-12-09
Abstract: ABSTRACT         The energy storage and transmission capabilities of a capacitance-type electroacoustical transducer are increased and the cost of producing such a transducer can be decreased by employing a thin, dielectric coating material between the elec-trically conductive diaphragm and backplate of said transducer, and by locating the supportive layer on the otherwise exposed outer surface of said diaphragm to protect same from physical as well as environmental damage.
Patent CA-1235056-A (CA)
Inventor: SWICK EUGENE B
IPC: F17C13/02
Filed: 1984-01-26
Granted: 1988-04-12
Abstract: ABSTRACT          A  cryogenic  storage  tank  with  a  built  in  pump  for pumping  cryogen  directly  from  the  primary  storage  container consistent  with  low boil-off  losses  of  cryogen  has  an outer vessel,  an  inner vessel  and  an  evacuated  insulation space therebetween.  A pump mounting  tube  assembly  extends  into  the interior of the inner vessel and includes an inner pump mounting tube and an outer pump mounting tube joined at their lower rims to define an insulating jacket between the two tubes. The inner pump mounting  tube is affixed  at  its upper  end  to  the outer vessel while the outer pump mounting tube is affixed at its upper end to the inner vessel. The inner pump mounting tube defines a relatively long heat path into the cryogenic container and is itself insulated from the liquid cryogen by a pocket of trapped gas formed within the inner pump mounting tube by heated cryogen.        A pump may be introduced through the inner pump mounting tube and is also  insulated  against contact with liquid cryogen by the trapped gas such that only the  lowermost end of  the pump is immersed  in  cryogen  thereby minimizing heat leakage  into the tank.
Patent CA-1233980-A (CA)
Inventor: ISHIHARA NAOKI
IPC: A45D20/12
Filed: 1984-02-17
Granted: 1988-03-15
Abstract: ABSTRACT OF THE DISCLOSURE.       In a hand held hot air hair dryer, wherein air is pulled in by a fan in a direction axially to the fan andthen moved about the axis and through a heating mechanism to exit through a nozzle air flow adjusting mechanism is provided to leak air flowing about the axis and thereby selectively adjusting the hot air flowing out the nozzle, without inducing any substantial changes of load to the motor driving the fan.
Patent CA-1212626-A (CA)
Title: Sweetener composition and sweetening method
Inventor: NAKAJIMA NOBUO
IPC: A23L21/12
Filed: 1984-02-17
Granted: 1986-10-14
Abstract: Abstract of the Disclosure A sweetener composition was prepared by admixing 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxide potassium (Acesulfame K) and one or more members selected from the group consisting of alanine, glycine, histidine, arginine glutamate, glutamic acid and its sodium salt, sodium 5'-inosinate, sodium 5'-guanylate, tartaric acid and its salts, and disodium phosphate.  Thus, the bitter taste on use of Acesulfame K alone is considerably mitigated to impart a sweetness of improved quality. Said composition is useful for the sweetening of foods or pharmaceutical products in view of its sweetening properties.
Patent CA-1214423-A (CA)
Inventor: CURLEY CHARLES M
IPC: B41J1/00
Filed: 1984-03-06
Granted: 1986-11-25
Abstract: A CABLE DRIVE SYSTEM FOR A PRINTING MACHINE          ABSTRACT      In a printing machine of the kind having a print carrier supported for linear movement along a path of printing, there is provided a cable drive system comprising a motor mounted on the carrier, a capstan member rotatably supported on the carrier and driven by the motor and a single continuous cable assembled to convert rotary movement of the capstan member to linear motion of the carrier.   The  capstan member  is  especially  structured to accommodate the wound support of a first series of cable coils and  a  second  series  of  cable  coils  wrapped  in  opposite directions, such that, the last wound coil of each series meet along the capstan member and cable may be wound  and  unwound simultaneously  when  the  capstan  member  is  rotating.   An  end length of the cable is stretched taut from the last wound coil of each series and the two cable end lengths extend in opposite directions to a related left and right side frame member where the ends of the cable are firmly anchored.   Rotating the capstan member causes one of the end lengths to become tensioned for exerting a pulling force transmitted to the print carrier through the take-up winding of tensioned cable and the  print  carrier linearly moves along the path of printing in the direction of the tensioned cable.   During linear movement of the print carrier, the length  portions of cable extending off the capstan member remain stationary and are orientated with respect to the helical angle of the coils, such that, winding and unwinding of cable is accomplished without any cable interference and mechanical drift.
Patent CA-1208207-A (CA)
Title: Oxidation-stable, light-colored glycerol ester of  modified rosin
Inventor: SCHARRER ROLAND P F
IPC: C09J193/04
Filed: 1984-03-19
Granted: 1986-07-22
Abstract: OXIDATION-STABLE, LIGHT-COLORED GLYCEROL ESTER       OF MODIFIED ROSIN                    ABSTRACT OF THE DISCLOSURE           Glycerol esters of modified rosin are useful tackifiers in rubber adhesive compositions.  Esters made with rosin modified by reducing the abietic acid concen-tration to 5% or less, will retain tackifying properties for longer periods in storage before use.
Patent CA-1218132-A (CA)
Inventor: BURDA DAN S
IPC: B02C25/00
Filed: 1984-03-30
Granted: 1987-02-17
Abstract: CURRENT DRAW-ACTUATED HYDRAULIC DRIVE             ARRANGEMENT FOR ROTARY SHREDDER                ABSTRACT OF THE DISCLOSURE         A hydraulic drive arrangement for a shear-type shredder includes an electrically operable control circuit, including a jam sensor external to the hydraulic fluid circuit, for sensing jamming conditions in the shredder and reversing the flow in the fluid circuit only when a true jamming condition is sensed.          The jam sensor is located in the electrical power circuit to the electric motor driving the hydraulic fluid pumping means for sensing the load on the motor.          An electric discriminator circuit responds to the sensor to distinguish between load changes due to true and momentary jamming conditions in the shredder.  An actuator responsive to the discriminator actuates a flow-reversing valve in the hydraulic circuit to reverse fluid flow therein to reverse the shredder and thereby clear the jamming condition.  The hydraulic fluid circuit, including a pressure relief valve, and the electric motor, dampen any abrupt changes in load due to momentary jamming conditions in the shredder so that they do not cause the discriminator to actuate the flow reversing valve.