baber/WOPTO huggingface dataset:
Patent CA-1109635-A (CA)
Inventor: MAMOURIAN ARMAND
IPC: C01B25/234
Filed: 1978-05-19
Granted: 1981-09-29
Abstract: Abstract of the Disclosure It is known to prepare phosphoric acid from the acidic leaching of phosphate bearing minerals.  Such acids generally contain a high fluorine content and thus are unsuitable for use in the food industry.  The present invention seeks to overcome this drawback by providing a process for purifying and defluorinating an impure phosphoric acid produced by a sulphuric acid treatment of a phosphate-bearing rock which comprises the counter-current extraction of the impure aqueous phosphoric acid solution with an organic solvent having a low miscibility with water, in the presence of concentrated sulfuric acid, washing of the resulting phosphoric acid organic phase with water or purified phosphoric acid and counter-current re-extracting the phosphoric acid contained in the organic phase with water, separating the resulting dilute aqueous solution of decationised and partially defluorinated phosphoric acid, and treating said solution with steam, hot gas, or a mixture thereof to obtain a concentrated and defluorinated aqueous phosphoric acid solution in which the F/P2O5 ratio by weight is lower than 10 ppm.
Patent CA-1101658-A (CA)
Inventor: ITOH TSUTUMO
IPC: B05B5/025
Filed: 1978-05-31
Granted: 1981-05-26
Abstract: ABSTRACT OF THE DISCLOSURE           This invention relates to an apparatus used for continuously electrostatically coating an object with pulverized synthetic resin, said apparatus comprising an electrostatic coating chamber where said pulverized synthetic resin is to be coated on the surface of said object maintained at a temperature below the melting point of said resin, which object has been conveyed into said chamber by means of a holding device, and a device for removing surplus pulverized resin from specific parts of said object by suction to electrostatically coat the desired part only, said device comprising suction slit openings positioned close to the specific parts of said object from which surplus pulverized resin is to be removed, said suction slit openings having squeegees made of an elastic material to facilitate the removal of surplus pulverized resin.
Patent CA-1117202-A (CA)
Inventor: KUNZ KURT
IPC: G06F3/023
Filed: 1978-06-20
Granted: 1982-01-26
Abstract: ABSTRACT OF THE DISCLOSURE            A key array is suggested in which, progressing from key to key the switching functions are derived by an AND-operation from mechanical or electrical signals indicating the actuation of pairs of adjacent keys of a row of keys or indicating the actuation of at least two diagonally opposite keys of a square group of four keys arranged in a keyboard.  The pairs of adjacent keys and the square groups of four keys, respectively, each are allocated to one symbol and each are depressable simultaneously by the operator's fingertip in order to initiate the respective switching function.  Thereby, a large surface lying in one single plane and being divided by gaps between the respective keys of one pair of keys or one group of keys, is available for the symbol legend and for engagement by the fingertip.
Patent CA-1109005-A (CA)
Inventor: GESKE BRUCE R
IPC: B01D29/15
Filed: 1978-07-04
Granted: 1981-09-15
Abstract: ABSTRACT Well screen having a base made of formed channels provides the strength of a pipe base screen but weighs less, costs less, and provides greater vertical flow area.  The channels are perforated and are in con-tinuous contact around the screen with the contiguous legs of adjacent channels being welded at their ends to each other and to the wrap wire. The screen is particularly useful in oil and gas wells where great torsional strength is needed.
Patent CA-1093003-A (CA)
Inventor: PORTERFIELD RICHARD F
IPC: B41J35/12
Filed: 1978-07-12
Granted: 1981-01-06
Abstract: RIBBON FEED MECHANISM                      ABSTRACT OF THE DISCLOSURE     A ribbon feed mechanism for a typewriter has a linkage for incrementally feeding a ribbon, a power roll rotated by a motor and a control member actuated by a printing mechanism for connecting the power roll to the linkage to incrementally feed the ribbon.  The control member is also actuated by a carriage shift mechanism when shifting a carriage from an upper case position to a lower case position for connecting the power roll to the linkage to incrementally feed the ribbon.
Patent CA-1110694-A (CA)
Inventor: CHIREAU ROLAND F
IPC: H01M4/06
Filed: 1978-09-19
Granted: 1981-10-13
Abstract: PROCESS FOR MANUFACTURING ULTRA-THIN    SINTERED PVC BATTERY SEPARATORS          Abstract of the Disclosure Dry mixed and sintered PVC battery separators having predetermined thicknesses less than 0.012 inch, porosities greater than about 50%, and pores sufficiently small to substantially prevent interplate "treeing" (i.e., less than about 10 microns average) are produced by:  mixing about 3% to about 15% by volume of leachable, pore-forming particles with the PVC particles; scraping the particle mix into a layer less than about 0.012 inch thick; sintering the PVC into a continuous strip; cooling the strip to a temperature of about 250° F. to about 300°F., and thereat compressing it to a thickness no greater than about 50% of its as-sintered thickness; while still warm, allowing the strip to recover much, but not all, of its as-sintered thickness; and cooling the strip to substantially fix the separator thickness at the recovered thickness.  The leach-able, pore-forming particles are preferably formed in situ by the thermal degradation of a gasifiable filler such as sodium bicarbonate.
Patent CA-1110551-A (CA)
Inventor: SODERSTROM JAN
IPC: A61M1/16
Filed: 1978-10-11
Granted: 1981-10-13
Abstract: ABSTRACT OF THE DISCLOSURE There is disclosed herein a negative pressure dialysis machine which includes a negative pressure valv-ing system and transmembrane pressure alarm system.         An electromagnetically controlled flapper valve is disclosed herein for use as a negative pressure control valve.  The flapper valve permits accurate control of negative pressure and changes in negative pressure to be affected rapidly.         Transmembrane pressure alarm systems are provided which detect the difference in pressure between the blood and dialysate in the dialyzer and activate alarms and pre-vent dialysis (a) if the dialysate pressure exceeds the blood pressure and/or (b) if a blood pressure signal is not received which would permit actual transmembrane pressure to increase beyond a predetermined limit.
Patent CA-1061550-A (CA)
Inventor: VAN DRIL WILLIAM A
IPC: F27B1/10
Filed: 1978-10-13
Granted: 1979-09-04
Abstract: CUPOLA FURNACE WASTE GAS RECUPERATIVE SYSTEM AND METHOD FOR OPERATING SAME     Abstract of the Disclosure An improved cupola furnace waste gas recuperative system and method for collecting waste furnace gases, cleaning them, and burning same in a recuperator-heat exchanger for preheating incoming furnace blast air.  The improvement includes a method and means for the recirculation of waste cupola furnace gases through a portion of the scrubber or cleaning system for the purposes of;  controlling the pressure at the furnace gas take-off chamber, preventing gases from escaping through the charging hopper, preventing excess in-draft of air,  and maintaining cleaning efficiency at any gas flow rate.  The improvement also includes a control means whereby the actual top gas pressure is regulated as a function of the incoming blast air.
Patent CA-1118427-A (CA)
Inventor: RAMSDEN CHRISTOPHER A
IPC: A61K31/41
Filed: 1978-10-26
Granted: 1982-02-16
Abstract: ABSTRACT OF THE DISCLOSURE          New tetrazole derivatives of the general formula:       I            [wherein R1 represents a halogen atom, a straight- or branched-chain alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl or alkylsulphamoyl group, each such group containing from 1 to 6 carbon atoms, a dialkylsulphamoyl, dialkylamino, or dialkylcarbamoyl group (wherein the two alkyl groups may be the same or different and each contains from 1 to 4 carbon atoms), a straight- or branched-chain alkanoyl, alkoxycarbonyl, alkoxycarbonylamino, alkylcarbamoyl or alkanoylamino group containing from 2 to 6 carbon atoms, a cycloalkylcarbonyl group containing from 3 to 8 carbon atoms in the cycloalkyl moiety, or a hydroxy, formyl, nitro, trifluoromethyl, trifluo-roacetyl, aryl, benzyloxycarbonylamino, amino, sulphamoyl, cyano, carboxy, carbamoyl, benzyloxy, aralkanoyl or benzoyl group, and m represents zero or an integer 1, 2 or 3, the substituents R1 being the same or different when m represents 2 or 3] possess pharmacological properties, in particular properties of value in the treatment of allergic conditions.
Patent CA-1054359-A (CA)
Inventor: HARTFIEL ARLYNN H
IPC: E21B43/22
Filed: 1978-10-26
Granted: 1979-05-15
Abstract: ABSTRACT OF THE DICLOSURE           An aqueous clay-free thixotropic wellbore fluid for use in subterranean formations in the earth comprises water, at least 1% by weight of a brine forming soluble salt or mixtures of salts, MgO and a heteropolysaccharide prepared by the action of bacteria of the genus Xanthomonas on carbo-hydrates; the fluid is injected into a formation to contact the formation with the fluid, and the fluid is returned to the surface for regeneration and reinjection into the formation.
Patent CA-1106514-A (CA)
Inventor: SAXON BRUCE R
IPC: H03F3/26
Filed: 1978-10-30
Granted: 1981-08-04
Abstract: PAGING AMPLIFIER FOR A KEY TELEPHONE SYSTEM             Abstract of the Disclosure The amplifier includes an audio signal input means and a first pair of integrated circuit audio power amplifiers each having an inverting input and a non-inverting input.          The inverting input of one of the first pair of amplifiers is coupled to the input means and the non-inverting input of the other of the first pair of amplifiers is coupled to the input means.  A first load has one terminal coupled to the output of one of the first pair of amplifiers and the other terminal coupled to the output of the other of the first pair of amplifiers.  A second pair of integrated circuit audio power amplifiers each having an inverting input and a non-inverting input.  The inverting input of one of the second pair of amplifiers is coupled to the input means and the non-inverting input of the other of the second pair of amplifiers is coupled to the input means.  A second load has one terminal coupled to the output of one of the second pair of amplifiers and the other terminal coupled to the output of the other of the second pair of amplifiers.          The first and second loads are coupled in series to provide positive and negative amplified audio output signals for the paging amplifier.
Patent CA-1093913-A (CA)
Inventor: NIJHUIS JAN
IPC: D01H13/30
Filed: 1978-11-09
Granted: 1981-01-20
Abstract: ABSTRACT OF THE DISCLOSURE:            In a method for the manufacture of twistless yarn a sliver of staple fibre material is drafted in two drafting zones, which are separated by a neutral zone. The drafting in the first zone occurs in a dry condition and in the second zone in a wet condition. The drafting liquid, which can contain a bonding agent, l s supplied to the sliver through a false twister inserted in the neutral zone. This drafting process provides an increased uniformity of twistless yarn in 8 range of counts of 10 - 300 tex at a production rate of 300 to 600 m/min.
Patent CA-1097323-A (CA)
Inventor: FREI MAX
IPC: F16G11/12
Filed: 1978-11-16
Granted: 1981-03-10
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides a wire tensioner adapted to tension a continuous wire or join and tension a pair of wires, said tensioner comprising a multi sided bolt, a plate integral with one end of said bolt, said plate having a slot extending through the centre thereof and dividing the plate into two plate halves, said one end of said bolt having an axial opening extending there-across in alignment with said slot for unimpededly receiving said continuous wire in said slot, said opening being closed by said wire on axial rotation of said bolt by  an auxiliary tool, the wire, on rotation of said bolt winding therearound from two oppo-site sides with said bolt being maintained at right angles to the wire by said plate, each of said plate halves having an opening, said openings lying on a diagonal of said plate and being adapted to receive the ends of a pair of wires to be joined, and a lock-ing member having a hole therein to non-rotatably accommodate the multi-sided bolt and grooves therein for accommodating said wire which locking member on placing of the wire in one of said grooves rigidly connecting the wire and the bolt accommodated in said hole.
Patent CA-1128154-A (CA)
Inventor: TSUJI TOSHIHIKO
IPC: H01F37/00
Filed: 1978-11-21
Granted: 1982-07-20
Abstract: "REACTOR"          Abstract of the Disclosure A reactor comprising an insulative annular ease, an annular iron core disposed in the case, a plurality of first conductor rods facing the inner periphery of the case, a plurality of second conductor rods facing the outer periphery of the case, and a plurality of connecting conductors connecting the ends of the first conductor rods to those of the second conductor rods, thereby constituting a spiral current path winding around the annular iron core.
Patent CA-1114409-A (CA)
Inventor: FOX JOHN
IPC: B65H31/24
Filed: 1978-11-29
Granted: 1981-12-15
Abstract: SHEET STACKING APPARATUS                            ABSTRACT      Sheet stacking apparatus which corner registers sheets is provided. This is achieved by an inclined sheet support surface which directs sheets to a belt that extends across the surface.  As a result the sheets are aligned in one plane.          Full corner registration is achieved by the belt conveying the sheets against a stop that aligns the sheets in a second plane perpendicular to the first.
Patent CA-1097236-A (CA)
Title: Procede d'elimination des sucres flatulents du soja
Inventor: DASEK JAROSLAV
IPC: A23L11/00
Filed: 1978-11-30
Granted: 1981-03-10
Abstract: PROCEDE D'ELIMINATION DES SUCRES FLATULENTS DU SOJA            Société dite:  Société des Produits Nestlé S.A.            Abrégé descriptif Procédé d'élimination des sucres flatulents du soja, dans lequel on fait fermenter une suspension aqueuse de soja par des levures alimentaires, notamment Saccharomyces (S.) uvarum.    On prépare une suspension de soja contenant 5 à 45 % en poids de matière sèche, on l'inocule avec au moins une souche de S. uvarum parvenue à l'état de croissance sur un milieu contenant au moins un sucre présentant au moins une liaison .alpha.D-galactopyranosyl et l'on fait fermenter la sus-pension en conditions anaérobies durant au moins 8 h, à une température de 15 à 50°C.
Patent CA-1079172-A (CA)
Inventor: GESCHWENDER ROBERT C
IPC: B32B3/12
Filed: 1978-12-18
Granted: 1980-06-10
Abstract: Abstract of the Disclosure A mastic composition formed of a substantially homogeneous imporous mixture of a predetermined volume of low-density expanded closed-cell synthetic resin beads and a slurry prepared from calcined gypsum and water wherein the interstitial volume of the expanded beads is not sub-stantially more than the volume of slurry.  The substan-tially homogeneous mixture is self-adhering as a thick layer on an inverted smooth surface and yet separable therefrom as an integral layer, the mastic composition setting to a hard, strong, dimensionally stable, heat-and sound-retardant material. Methods of mixing mastic compositions, and composite structural panels utilizing mastic compositions as well as the methods and apparatus for forming such panels are also disclosed.
Patent CA-1122620-A (CA)
Title: Process for the preparation of an  aromatic hydrocarbon mixture
Inventor: SCHAPER LAMBERT
IPC: B01J29/87
Filed: 1979-01-10
Granted: 1982-04-27
Abstract: A B S T R A C T      Process for the preparation of aromatic gasoline from natural gas. Natural gas is converted into synthesis gas. The synthesis gas is converted into an  aromatic hydrocarbon mixture over a catalyst containing a crystalline iron silicate. From the aromatic hydrocarbon mixture a C2?fraction, an isobutane fraction and an aromatic liquid gasoline fraction are separated. The C2?fraction is converted into synthesis gas. The isobutane fraction is converted by alkylation into a product from which a gasoline fraction is separated. The two gasoline fractions are mixed.
Patent CA-1126421-A (CA)
Title: Optical multiplexer and  demultiplexer
Inventor: NOSU KIYOSHI
IPC: H04J14/02
Filed: 1979-01-19
Granted: 1982-06-22
Abstract: ABSTRACT OF THE DISCLOSURE       An optical multiplexer and/or optical demultiplexer for multiplexing and/or demultiplexing a plurality of wave-lengths comprises a plurality of optical filter each of which transmits a predetermined wavelength and reflects other wavelengths, said optical filters being arranged so that an optical beam is transmitted or reflected via each optical filter in sequence in a zigzag fashion.  A light source or light detector is provided behind each optical filter to project or receive a collimated optical beam.  The angle of incidence when a beam is applied to an optical filter is small.  And, another optical means is provided to connect the present optical multiplexer and/or demultiplexer with an outside optical fiber.  The transmission wavelength of each optical filter is different from the others.
Patent CA-1101896-A (CA)
Inventor: ROWE HOWARD
IPC: B25B1/06
Filed: 1979-03-21
Granted: 1981-05-26
Abstract: ABSTRACT     A pressure assembly comprises a base plate, a ram and a wedge located between the base plate and the ram, the wedge having an inclined face facing the base plate or ram, the facing surface of the base plate or ram being inclined at the same angle and a screw adapted to move the wedge at right angles to the separation of the ram and base plate to alter the separation of the ram and base plate.  Preferably a pair of wedges are provided, and preferably their inclined faces are oppositely-inclined. The pressure assembly may be used in conjunction with a support member adapted to be secured to a firm foundation, for example by bolts passing through bores. The assembly can be used to clamp a workpiece between the ram and a fixed member by engagement of the base plate with the fixed member and by increasing the separation of the ram from the base plate by rotating the screw.
Patent CA-1100322-A (CA)
Inventor: KEMP CHARLES L
IPC: A47J31/06
Filed: 1979-04-12
Granted: 1981-05-05
Abstract: ABSTRACT OF THE DISCLOSURE           A drip coffeemaker basket and filter assembly is provided comprising a cup-shaped basket supporting a matching water permeable filter and the basket is generally funnel-shaped with a substantially flat bottom wall of spaced supporting means defining a fixed opening water passage where the supporting means may be spaced radiating ribs.  A second adjacent and larger cross-section supporting shelf is spaced above the bottom wall and supports the filter thereon.  A convex curved surface connects the shelf and the supporting means whereby the filter seals on the convex surface inversely to the coffee quantity in the filter and automatically varies the effect of filtering area directly with the coffee quantity in the filter providing a single molded unit with non-movable or re-placeable parts that automatically adjusts itself for larger and smaller quantities for the correct brew.
Patent CA-1131422-A (CA)
Inventor: SINGH ANAND P
IPC: B29C33/02
Filed: 1979-05-24
Granted: 1982-09-14
Abstract: Inventor:     Anand Pal Singh Title:        TIRE PRESS UNLOADER     ABSTRACT OF THE DISCLOSURE A tire press unloader for a tire curing press of the upstanding bladder type includes a pivoting tire platform mounted for vertical movement on a horizontally movable unloader frame. The platform includes a pivot control member to keep the same from pivoting during initial upward movement and then require the same to pivot during the final vertical movement. The control member also requires the platform to return to its horizontal position as it starts downwardly. Obstructions in the path of the control member require such pivotal movement. The tire platform is mounted on a pivoting horizontal shaft disposed in vertical slots in the unloader frame and the pivot control member is secured to the shaft for common pivotal movement. When the press is opened and the cured tire has been elevated by the bladder mechanism, the tire platform is positioned beneath the cured tire to support the tire as the bladder is stripped therefrom. The tire platform is then elevated thus vertically to lift the tire over the top of the upstanding bladder to cause the tire to slide down by gravity to a retractable two element centering tire stop. The tire stop is retracted and the tire rolls into a PCI or out of the press.
Patent CA-1114581-A (CA)
Inventor: ROEBUCK MALCOLM J
IPC: B21D53/48
Filed: 1979-07-04
Granted: 1981-12-22
Abstract: DIE-SET COMBINATION FOR MAKING PIN-BACK BADGES  Abstract The present invention concerns a combination of mutually interfitting die and press-block elements adapted for manual use and operation with each other to produce a finished and permanent assembly of the separate components of a pin-back button or badge.
Patent CA-1079321-A (CA)
Inventor: SHACKLETT JAMES H JR
IPC: B42F3/00
Filed: 1979-07-27
Granted: 1980-06-10
Abstract: INFORMATION FOLDER CONSTRUCTION                 ABSTRACT OF THE DISCLOSURE      An information folder wherein a strip of paper or like sheet material is subdivided by a plurality of generally equally spaced parallel scores into a plurality of generally rectangular panels having information indicia marked thereon, and folds are provided along the scores defining hinge connections between panels, the strip being wound about one end panel into a flattened spiral with all the panels in generally congruent overlying relation with each other.
Patent CA-1129567-A (CA)
Inventor: PIELKENROOD JACOB
IPC: C02F1/52
Filed: 1979-08-10
Granted: 1982-08-10
Abstract: ABSTRACT  OF  THE  DISCLOSURE            A method and a device for removing from a liquid undesired components dissolved therein, in particular waste water obtained in the processing of metal ores, by converting such components into substantially insoluble compounds which are separated from the liquid before draining the latter. According to the present invention substantially inert particles are used which, when mixed with the liquid in the reaction space, will act as nuclei on which the substantially insoluble compounds formed by said conversion reaction will preferably deposit so as to avoid deposition thereof on parts of the device, which nuclei and adhered deposits can be easily separated from the liquid. To that end the device of the invention comprises a reaction space with means for supplying the liquid to be treated and substances for bringing about the conversion reaction, as well as additional means for supplying to said space precipitation nuclei, said reaction space being connected to a separator for separating said nuclei from the treated liquid, which nuclei can be returned towards said additional means if required.
Patent CA-1124753-A (CA)
Title: Conveying apparatus for the conveying of mud from  great depths, more especially ore mud
Inventor: HAHLBROCK UDO
IPC: E21C45/00
Filed: 1979-09-21
Granted: 1982-06-01
Abstract: ABSTRACT OF THE DISCLOSURE      The specification describes a conveying apparatus for the conveying of mud, more particularly ore mud, from great depths with a conveying pipe ending in a suction mouthpiece and provided with a conveying pump.
Patent CA-1142585-A (CA)
Inventor: GRZYBOWSKI JAMES P
IPC: H01L25/07
Filed: 1979-10-02
Granted: 1983-03-08
Abstract: ABSTRACT OF THE DISCLOSURE           This specification discloses a semiconductor assembly having a semiconductor device sandwiched between two ceramic layers which have a good heat transfer capability and provide for transfer of heat from the semiconductor device through each of the ceramic wafers.  The semiconductor assembly can include a plurality of rectifying devices placed between two selectively metalized ceramic wafers and joined to form a semiconductor rectifier for the output of an alternator.