baber/WOPTO huggingface dataset:
Patent BE-900736-A (BE)
Title: Chaudiere a tubes de fumees.
IPC: F24H1/28
Filed: 1984-10-02
Abstract: Chaudière dans laquelle le transfert de chaleur s'effectue à partir de gaz chauds circulant axialement dans les tubes vers un fluide extérieur à ces tubes par échange par contact et/ou convection. Ladite chaudière comprend des tubes de transfert de section elliptique présentant un rapport de rayons de l'ellipse compris entre 0,2 et 0,5. Application aux chaudières à tubes de fumées dans lesquelles les tubes de section elliptique permettant d'accroitre les surfaces d'échange tout en présentant la compacité des chaudières, garantie de couts peu élevés.
Patent BE-902556-A (BE)
Title: Automatic and indelible dye marking system for thieves - has dye sprayed from container under pressure by foot-switch or photosensor to mark persons attempting hold-up
IPC: G08B15/02
Filed: 1985-05-31
Abstract: A foots witch, or photocell controls an electric on-off value with an associated timer, to apply an indelible dye from a container pressurised from air bottles to spray heads and mark a robber attempting a hold-up. A klaxon and an emergency cut-off are provided. - The dye may be a resin with a hardener, each being held in separate pressurised containers. The spray heads may operate in sequence.
Patent BE-905567-A (BE)
Title: Procede de traitement thermique pour la realisation de pieces en acier resistant a la corrosion.
Inventor: MADSAC MICHEL
IPC: C23C8/34
Filed: 1986-10-07
Abstract: Procédé de traitement thermique pour la réalisation de pièces en acier résistant à la corrosion, comportant une première phase au cours de laquelle les pièces, placées dans un four, sont soumises à un traitement de nitruration sous atmosphère gazeuse de manière à produire à la surface desdites pièces une première couche essentiellement formée de laquelle la pièce est soumise à l'action d'une atmosphère oxydante de manière à former au-dessus de la première couche une seconde couche riche en oxydes à la surface desdites pièces.
Patent CA-1049934-A (CA)
Inventor: BROWN CLINTON E
IPC: A61M1/00
Filed: 1973-12-31
Granted: 1979-03-06
Abstract: PATENT APPLICATION         of CLINTON E. BROWN       for ARTIFICIAL KIDNEY               ABSTRACT OF THE DISCLOSURE        Extra-corporeal devices are provided for performing the functions of a natural kidney.  In one device, a bodily fluid such as peritoneal fluid or arterial blood is withdrawn from the body and passed through a dialyzer that causes selective diffusion of toxic, low molecular weight solutes into a water-containing dialysate. The dialysate and solutes are then passed through a filtration means or combination of filtration and electrodializing means that permit only the passage of pure water or pure water and dissolved electrolytes while retaining the low molecular weight toxic solutes. The purified filtrate from the filtration means is recycled and combined with a controlled amount of make-up electrolyte solution as the dialysate for the dialyzer and the unfiltered residue from the filtration means is discharged as waste.  The peritoneal fluid or blood in transit through the dialyzer is thus cleansed of toxic substances and is suitable for return.
Patent CA-1051809-A (CA)
Inventor: ANDERSON ROBERT F
IPC: C07C67/00
Filed: 1975-04-17
Granted: 1979-04-03
Abstract: ABSTRACT OF THE DISCLOSURE        An alkylation reaction chamber for contacting acid catalysts with alkylation reactants.  A heat exchanger, a plurality of baffles and a plurality of spray nozzle assemblies are disposed within a vertically positioned, elongated vessel.  Acid catalyst flows upward in serpentine fashion through the vessel and alkylation reactants are sprayed into the catalyst at a plurality of elevations within the vessel.  Exothermic heat of reaction is removed by the heat exchanger.
Patent CA-1098861-A (CA)
Inventor: DEMARTHE JEAN-MICHEL
IPC: C01G3/00
Filed: 1975-05-14
Granted: 1981-04-07
Abstract: ABSTRACT OF THE DISCLOSURE         The specification discloses a method for the treatment of sulphurized copper concentrates, which treatment is particul-arly applicable to copper ores such as bornite, chalcopyrite and chalcocite.  It is well-known that these copper-bearing ores are always accompanied by gangue or other types of ore such as pyrites, quartz and calcite, the major portion of this gangue being eliminated during the preliminary stage in the concentra-tion of the ore.  A concentrate is thus obtained which contains for example approximately 15 to 50% of copper and 5 to 35% of iron.  The specification discloses a method for obtaining electrolytic copper from copper-bearing ores, characterized in that it comprises, in combination, the following stages: a)  lixiviation of the initial product by an aqueous solution containing cupric chloride; b)  separation into two parts of the solution resulting from the lixiviation stage a), one of said parts being subjected to oxidation by air at atmospheric pressure, and at a pH-value of between 1 and 3 and at a temperature above 90°C, with precipita-tion of the separated goethite, the resulting solution then being recycled to the lixiviation stage a); c)  partial extraction of the copper contained in the other of said parts of the solution resulting from the lixiviation stage a), by contacting said solution with an organic phase containing a cationic solvent, said extraction being accompanied by oxida-tion by the injection of air; d)  re-extraction of the copper contained in said organic phase by contacting the latter with an aqueous sulphuric acid solution and recycling the organic phase to the extraction stage c); and e)  treatment of the copper sulphate solution obtained from the preceding stage to obtain, on the one hand, copper in valuable form, and, on the other, an aqueous sulphuric acid solution which is recycled to the re-extraction stage d), the major part of the aqueous phase which results from the stage c) at which copper is partially extracted being recycled to the lixiviation stage a).
Patent CA-1064210-A (CA)
Inventor: NOHTOMI RYOTA
IPC: B29C55/28
Filed: 1975-10-07
Granted: 1979-10-16
Abstract: PROCESS AND APPARATUS FOR HEAT SETTING BIAXIALLY ORIENTED TUBULAR POLYETHYLENE TEREPHTHALATE FILMS                       Abstract of the Disclosure A process for continuously heat setting a tubular film of biaxially oriented polyethylene terephthalate in a state expanded with a gaseous material and taking the heat set film up on a winder which comprises carrying out the heat setting in a heat setting chamber wherein the temperature is controlled so as to be initially in the range of about 220°C.-240°C. in the first zone of heat setting and thereafter declines to about 195°C.-215°C. in the final zone while the length of the film is increased about 2% - 7% and the diameter of the film is reduced about 5 - 15% from the corresponding dimensions of the film before heat setting, the film then being taken up by a rotary winder.  An apparatus for carrying out the described process is also provided which comprises a heating chamber having heat-ing means dividing the chamber into zones so as to supply a hot blast in each zone of a different temperature from the other zones and rotatable means for controlling the stretch and shrink-age of the tubular film in the heating chamber and handling the film after it leaves the chamber comprising adjustable pinch rolls, film collapsing means and a winder, all mounted in fixed relation to one another.
Patent CA-1069604-A (CA)
Inventor: BERGGREN KARL-ERIK
IPC: F25B49/00
Filed: 1975-10-17
Granted: 1980-01-08
Abstract: Abstract of the Disclosure A pressure or force responsive switching device has at least one pressure or force input, and in which a force or pressure responsive member is adapted in a first position to actuate a movable contact element of an electric switch by means of an actuating member upon the occurrence of a predetermined force or a predetermined pressure at the pressure input.  The actuating member is adapted in a second position to actuate a movable contact element of an additional electric switch upon the occurrence of a force or a pressure at the pressure input which is different from the first mentioned pressure.
Patent CA-1043674-A (CA)
Inventor: NOMURA GIICHIRO
IPC: C21D9/46
Filed: 1975-12-19
Granted: 1978-12-05
Abstract: ABSTRACT OF THE DISCLOSURE           A composition of steel strip and the continuous anneal-ing process for producing a soft tin plate and black plate with temper T - 2 1/2 or T - 3 properties which have not previously been attainable by a conventional continuous annealing furnace for black plate.
Patent CA-1054905-A (CA)
Inventor: TEN BLOEMENDAL FRANS V W
IPC: C23F1/00
Filed: 1976-01-08
Granted: 1979-05-22
Abstract: ABSTRACT:         A method of etching apertures in a thin metal foil. The foil is first covered on both sides with etchant-resistant layers which have the desir-ed pattern of apertures. One of the said layers is covered with a continuous protective layer. First, the side not covered with a protective layer is etched. The protective layer is then removed by means of a solvent, and then the other side is etched. According to the invention, the protective layer consists of a waxy hydrocarbon and the solvent consists of perchloroethylene.
Patent CA-1061628-A (CA)
Inventor: BROCKMEYER HEINZ P
IPC: F24F7/04
Filed: 1976-04-12
Granted: 1979-09-04
Abstract: ABSTRACT OF THE DISCLOSURE           Air outlet tubes for air conditioning systems are subdivided into a plurality of tube portions which are provided with corresponding male and female coupling elements at either end.  The tube portions are of dif-ferent forms and lengths so that complete air outlets may be assembled which suit the particular requirements of each working place, desk etc. to be ventilated.  One end of the air outlets are plugged into an air outlet port which is part of an air duct extending of the air conditioning system, underneath the floor.  The male and female coupling elements may also in-clude plugs and sockets for electric wires and telephone cables which run inside the tube portion.  When the outlet tube is assembled from a plurality of tube portions, each plug fits into the corresponding socket so that an outlet tube is obtained which not only conducts the conditioned air, but also includes the supply lines for electric lights, and telephones.
Patent CA-1051933-A (CA)
Inventor: HALL DONIVAN L
IPC: G01G19/413
Filed: 1976-04-29
Granted: 1979-04-03
Abstract: ABSTRACT OF THE DISCLOSURE           An improved electronic apparatus for accurately weighing, computing a value and printing a label showing the weight, the price per unit weight and the computed value of each of a plurality of successive articles.  The scale generates a predetermined number of significant weight digits which are used in computing values and at least one additional least signifi-cant weight digit.  A digital indicator is provided for normally displaying the significant digits of the corrected net article weight obtained from the measured gross article weight less the zero correction factor and any tare weight.  The displayed weight mat be shifted and the correcting of errors inhibited to permit dis-playing the additional least significant weight digit while checking or manually aligning the zero of the uncorrected scale output.
Patent CA-1070384-A (CA)
Inventor: YOSHIDA TADAO
IPC: H02M3/338
Filed: 1976-06-03
Granted: 1980-01-22
Abstract: ABSTRACT OF THE DISCLOSURE              A transistor inverter includes at least a pair of switching transistors, a transformer with primary and secondary windings, a DC voltage source with a pair of output terminals and a voltage reference terminal, and a rectifying circuit connected to the secondary winding of the transformer. A collector electrode of one of the switching transistors is insulated from a chassis by an insulation means comprising a first insulating layer; a conductive layer such as a heat sink and a second insulating layer. The conductive layer is electrically connected to an inter-mediate voltage terminal of the DC voltage source so as not to produce an undesirable radiation through the chassis.
Patent CA-1068154-A (CA)
Title: Procede de fabrication d'un produit alimentaire du genre beurre ou margarine
Inventor: BADERTSCHER ERNEST
IPC: A23D7/02
Filed: 1976-07-29
Granted: 1979-12-18
Abstract: Procédé de fabrication d'un produit alimentaire du genre beurre ou margarine, caractérisé par le fait que l'on mélange intimement, à une température comprise entre environ 20.degree.C à 35.degree.C, un milieu contenant des matières grasses et un milieu aqueux ayant une viscosité comprise entre 2000 et 20000 centipoises mesurée à une température entre 20 et 30.degree.C, ladite température à laquelle on réalise le mélange intime étant telle que les matières grasses ne soient ni dans un état partiellement cristallisé, ni dans un état partiellement fondu, résultant directement à la formation d'une émulsion du type eau dans l'huile contenant 35% à 90% de matières grasses, cette émulsion constituant le produit alimentaire du genre beurre ou margarine.  Et, un produit alimentaire du genre beurre ou margarine obtenu par ce procédé.
Patent CA-1061529-A (CA)
Title: Drill chucks
Inventor: DERBYSHIRE GEORGE C
IPC: B23B31/12
Filed: 1976-09-07
Granted: 1979-09-04
Abstract: TITLE:                          "AN IMPROVEMENT IN OR RELATING TO                                 DRILL CHUCKS".         ABSTRACT OF THE DISCLOSURE:       A drill chuck having tapered jaw elements carried by flexible elements, said jaw elements bearing against a tapering nose cone so that they are urged inwards accompanied by flexing of the flexible elements when urged axially relative to the nose cone.
Patent CA-1055721-A (CA)
Inventor: MUTTER WALTER E
IPC: G01N21/57
Filed: 1976-11-16
Granted: 1979-06-05
Abstract: GLOSS MEASURING INSTRUMENT Abstract of the Disclosure An instrument for measuring the gloss of test samples at different predetermined angles of incidence, includes a glossimeter head operative to receive polychromatic light and direct it along plural beams at different angles of incidence towards an area on the surface to be analyzed.          A plurality of light receptors are arranged to receive specular light reflected from the surface at different angles of reflection corresponding to the angles of incidence.  The receptors include plural filters each one operative to pass light at a different wavelength than the others.          The light collected by the receptors is passed through a monochromator to a light detector whereby the light directed at the different angles of incidence and reflections corres-ponds to different wavelengths.  Fiber optic light pipes may be used to transmit light through the instrument.          A plug type coupling may be used to convert a general purpose spectrophotometer to the purpose of measuring gloss.
Patent CA-1066209-A (CA)
Inventor: MCALEAR JAMES H
IPC: H01L51/40
Filed: 1976-12-14
Granted: 1979-11-13
Abstract: ABSTRACT OF THE DISCLOSURE         Articles exhibiting a micropattern carried by a surface of a support, typically microdevices comprising a micropattern of a functional material on or in a substrate of a dissimilar material, are produced by a method employing a micro-substrate comprising a substrate base, a protein layer which comprises at least a compressed monolayer of a denatured non-fibrous protein on the base, and a masking film overlying the protein layer, the material of the masking  film being such as to be modified by radiant energy so as to be removable from the protein layer where irradiated.  The method is flexible in the sense that it is possible to proceed via either a positive or a negative of the desired micropattern and to build a more extensive, or more complex, micropattern from an initial relatively simple micropattern.
Patent CA-1075558-A (CA)
Inventor: BARBER DONALD T
IPC: G06K19/08
Filed: 1977-03-07
Granted: 1980-04-15
Abstract: Abstract of the Disclosure The specification describes a label used for the codification of various articles such as files, tapes cassettes, and the like.  The labels are colour-coded and each label bears on its coloured side a machine readable marking and at least one visual indicium which is of a size which makes it readily recognizable to a person reading the code on the article.  Each label is identifiable by colour, by its machine readable marking, and by its visual indicium.  The labels are applied to an article to build up the code for that article, with each label contributing in part to the entire code.  When working with labels as described above, there is no need to provide additional labels to complete the code.  The code on each article in the system is a unique one, so that each article is readily discernable from all other articles in the system by both visual and machine inspection.
Patent CA-1083856-A (CA)
Inventor: PATEL MAHESH S
IPC: C23C4/08
Filed: 1977-04-20
Granted: 1980-08-19
Abstract: Abstract of the Disclosure A copper-aluminum alloy flame spray powder is pro-vided consisting essentially by weight of 0 to about 5% Fe, about 2% to 8% Ni, about 5% to 15% Al, and the balance essentially copper, a coating produced from said powder being characterized by improved as-sprayed hardness in combina-tion with resistance to oxidation and galling.
Patent CA-1046553-A (CA)
Inventor: SOLOVIEFF PAUL G
IPC: E05B63/08
Filed: 1977-05-04
Granted: 1979-01-16
Abstract: LATCH CONSTRUCTION WITH IMPROVED      ANTI-VIOLATION FEATURES            Abstract of the Disclosure:          A bolt is reciprocally extended and retracted in a door by a latch driving mechanism operably connected to exterior and interior operator assemblies projecting from a mounting opening between faces of the door.   A pair of inwardly dished reinforcing plates edge abut the door faces spanning the door opening and the exterior operator assembly is secured inwardly against its respective reinforcing plate by primary fastening screws engaged with a lock frame of the exterior operator assembly, through the latch driving mechanism and end secured in the opposite interior reinforcing plate.   If a hand actuated interior operator assembly is used, the interior operator is rotatably mounted on the interior cover which is secured to the interior reinforcing plate by secondary fastening screws endwise secured in the primary fastening screws, but if the interior operator assembly includes a lock, the interior operator assembly is secured inwardly against the interior reinforcing plate by the lock frame being similarly engaged by secondary fastening screws.   In the latch driving mechanism, a pair of longitudinally extending driving levers are rearwardly operably connected to the exterior and interior operators and forwardly pivotally connected within a rearwardly opening bolt cavity to the bolt for movement thereof.   The rearward ends of the driving levers are movably guided along latch frame guide surfaces by pin connection therewith, retention against such guide surfaces being maintained by a spring constantly resiliently urging the driving lever forward ends downwardly about their pivotal connection to the bolt.   The spring is C-shaped positioned between the driving levers with an upper leg bearing upwardly against the bolt and a lower leg resting downwardly against the bolt pivot pin and terminating rearwardly thereof with downward engagement in slots of the driving levers.
Patent CA-1055264-A (CA)
Inventor: FRENCH JOHN B
IPC: H01J37/18
Filed: 1977-05-09
Granted: 1979-05-29
Abstract: ABSTRACT OF THE DISCLOSURE            A multiple stage cryogenic vacuum pump is disclosed for transferring matter or species between a gas and a vacuum chamber.  The vacuum chamber has an orifice through which the matter or species moves and through which some of the gas leaks into the chamber.         The chamber also has an interior surface which is spaced from the path of movement of the matter or species and encircles such path, and an internal divider extending to a position adjacent the interior surface and dividing the chamber into a  first region adjacent the orifice and a second region downstream from the first region, with the interior surface extending in both regions.   The surface is cooled by a single refrigerating device to below the condensation temperature of the gas, to produce a pressure below atmospheric in the first region and a lower pressure in the second region.  The divider contains an  aperture through which the matter or species travels and may itself be cooled to precool gas contacting it.  The matter or species may be ions or may be a strip of material to be treated.  In the latter case the gas which is cryopumped can be warmed and flowed countercurrent to the strip to precondition the strip prior to its entry into the vacuum chamber.
Patent CA-1070362-A (CA)
Inventor: RYS TADEUSZ J
IPC: H01H71/50
Filed: 1977-05-13
Granted: 1980-01-22
Abstract: LATCH FOR CONTACT OPERATING MECHANISM            ABSTRACT OF THE DISCLOSURE          A single pole molded case circuit breaker is con-structed with an internal metal frame to which the contact operating mechanism is mounted.  This mechanism includes a releaseable latch for maintaining the mechanism cradle in its reset position wherein the circuit breaker contacts may be closed. The latch is a plate-like element having an integrally formed ear that directly engages the cradle for latching thereof.  A socket rivet provides a cantilevered support for the latch on the frame.  This rivet is keyed to the latch so that operation of the latter may be coordinated with operation of an external device.
Patent CA-1062587-A (CA)
Inventor: WIRT LEON A
IPC: E02F3/96
Filed: 1977-05-24
Granted: 1979-09-18
Abstract: TREE SHEAR TILTING MECHANISM     A B S T R A C T           A vehicle has a tree shear mechanism mounted thereto, which is raisable and lowerable relative to the vehicle.  The tree shear mechanism may also be tilted about a longitudinal axis of the vehicle so that with the vehicle on ground of one level and slope, and the tree to be sheared on another ground level and slope, the tree shear mechanism can be properly positioned for appropriate shearing of the tree.
Patent CA-1072150-A (CA)
Title: Method of transporting coal, especially for coking purposes, over long distances
Inventor: METZ PAUL
IPC: B65G53/30
Filed: 1977-05-24
Granted: 1980-02-19
Abstract: ABSTRACT OF THE DISCLOSURE Comminuted coal, in particle sized of about 3 mm and less, is divided into a coarse fraction and a fine fraction, the latter consisting of particle sizes from about 0.4 mm down.  The coarse fraction, with particle sizes up to about 3 mm, is transported hydraulically, through a pipeline, to a remote destination to which the fine fraction is delivered dry, e.g. by rail.  At the destination the oncoming slurry containing the coarse fraction is mechanically dewatered, as by centrifuging and vacuum drying, the two fractions being then mixed together to provide a mass of coal with an overall moisture content of about 8% suitable for coking.  For more efficient hydraulic pumping of the coarse coal fraction through the pipe-line, the slurry may be supplemented by fine-grained ore which is separated therefrom at the destination prior to admixture of the dry-transported fine coal fraction.
Patent CA-1053437-A (CA)
Inventor: VOGELE PETER
IPC: B65B55/10
Filed: 1977-05-27
Granted: 1979-05-01
Abstract: ABSTRACT OF THE DISCLOSURE          Materials are sterilized with an active-chlorine-containing compound and any harmful active-chlorine residues are deactivated by treating the material with a dilute aqueous solution of hydrogen peroxide.  The process is useful for sterilizing packaging materials for foodstuffs.