baber/WOPTO huggingface dataset:
Patent CA-1044916-A (CA)
Inventor: ACHTER EUGENE K
IPC: C12Q1/26
Filed: 1975-01-13
Granted: 1978-12-26
Abstract: METHOD AND APPARATUS FOR DERIVING OXYGEN ASSOCIATION CURVES      ABSTRACT OF THE DISCLOSURE    An apparatus and method for deriving an oxygen association curve for a blood sample wherein the sample is placed on a trans-parent support and is covered by a gas-permeable membrane element. The support is mounted in a gas treatment chamber with transparent windows on opposite sides of the support to provide an optical path through the support normal to the sample.  Radiant energy is directed along this optical path, aid radian energy including two light frequencies, one having a wavelength at which there is substantially no change in absorbance as between oxygenated and deoxygenated blood and the other having a wavelength at which there is a relatively large change in absorbance as between oxy-genated and deoxygenated blood.  A controlled source of deoxygen-ating gas, such as nitrogen, and a controlled source of oxygen are connected to the chamber.  An oxygen electrode is mounted in the chamber and generates the X component, corresponding to oxy-gen in the chamber, in an X-Y recorder.  The difference in absorp-tion of the two frequencies is measured and from this is derived a signal forming the Y component in the X-Y recorder, which thus provides a curve corresponding to the light absorbance changes in the sample while it is being oxygenated.
Patent CA-1075859-A (CA)
Title: Process for recovering chemicals from the waste liquors of sulfate cellulose digestion and the waste waters of bleaching
Inventor: HENRICSON KAJ
IPC: D21C11/00
Filed: 1975-03-18
Granted: 1980-04-22
Abstract: PROCESS FOR RECOVERING CHEMICALS FROM THE WASTE LIQUORS OF SULFATE CELLULOSE DIGESTION AND THE WASTE WATERS OF BLEACHING      ABSTRACT OF THE DISCLOSURE A process for the recovery of chemicals from the waste liquors of sulfate cellulose digestion and from the waste waters of bleaching, wherein a melt from a soda-ash roaster, mainly containing sodium sulfide and sodium carbonate, but also sodium chloride, is dissolved and clarified to produce green liquor containing sodium carbonate, sodium sulfide and sodium chloride is disclosed.  The sodium carbonate and the sodium sulfide, which contains most of the sodium chloride, are separated from each other, at least part of the sodium chloride being separated by evaporation crystal-lization from the sodium sulfide in solution, at least part of the sodium carbonate being causticized into sodium hydroxide, and the sodium hydroxide and sodium sulfide in solutions being mixed together in a ratio suitable to form a digestion solution with a desired sulfide content.
Patent CA-1061732-A (CA)
Inventor: SHAW DAVID H
IPC: C10G73/00
Filed: 1975-03-19
Granted: 1979-09-04
Abstract: ABSTRACT OF DISCLOSURE   A dewaxing process is described wherein a waxy oil stock is introduced into a cooling zone and contacted therein with dewaxing solvent system comprising two or more solvents.  The solvents are introduced into the cooling zone in incremental amounts.  The composition of the solvents introduced into the cooling zone is gradually reduced, in order to produce temporary periods of solvent-oil immiscibility within said cooling zone interspersed with periods of miscibility.  The solvent admixture is cooled and agitated as it passes through the cooling zone thereby precipitating at least a portion of the wax therefrom and forming a solvent-oil mixture containing precipitated wax.  The mixture is subsequently removed from the cooling zone and oil of diminished wax content recovered therefrom.  In one embodiment of the invention, the cooling zone comprises a plurality of stages and a high level of agitation is maintained within at least a portion of the solvent-containing stages thereby providing substantially instantaneous mixing of the solvent and the oil therein.  The process is particularly useful for dewaxing heavy petroleum oil feedstocks, which have previously been subjected to a predilution operation.
Patent CA-1064794-A (CA)
Inventor: HASTINGS JOHN A
IPC: A61B17/14
Filed: 1975-03-21
Granted: 1979-10-23
Abstract: DISPOSABLE EAR PIERCING DEVICE                  Abstract of the Disclosure A disposable ear piercing device is prepackaged in a sterile condition and is ready for immediate use.  The device includes a pair of spaced jaws which receive the earlobe there-between.  One jaw is preloaded and carries a piercing pin and the other jaw is preloaded with and carries a lock nut.  The jaws are squeezed toward each other in a manner which first causes the earlobe to be gripped and then causes a drive means carried by the first jaw to rupture when the jaws are squeezed under a predetermined force and to transfer the squeezing force directly to the pin to drive it through the earlobe and into the lock nut.
Patent CA-1040739-A (CA)
Inventor: JOOSTEN LOUIS G J
IPC: H04N3/16
Filed: 1975-04-25
Granted: 1978-10-17
Abstract: ABSTRACT:     A supply voltage arrangement in a television receiver, which arrangement is switched at line frequency.          The diode of the arrangement is shunted by the series combi-nation of a capacitor and a primary winding of a trans-former a secondary of which controls the switch in the line deflection circuit.
Patent CA-1073577-A (CA)
Inventor: EMIG GALE L
IPC: C04B28/04
Filed: 1975-06-02
Granted: 1980-03-11
Abstract: ABSTRACT           This invention pertains to improved shrinkage compensating portland cement concrete and mortar composi-tions comprising essentially an expansive portland cement, mineral aggregate, from about 5 to about 25 percent based on cement weight of a styrene-butadiene-1,3 copolymer having a styrene to butadiene weight ratio of about 30:70 to 70:30, water and certain minor amounts of nonionic and anionic surfactants, and a foam depressant.  When properly restrained by either external restraints or internal restraints in the form of ordinary reinforcement or fibers of various lengths these compositions possess improved mechanical and physical properties such as compressive and flexural strengths and unexpectedly enhanced freeze-thaw resistance.  Such compositions are particularly suited for use in the construction of crack-free structures. 17,260-F
Patent CA-1044440-A (CA)
Title: Procede de desulfuration des gaz contenant de l'hydrogene sulfure
Inventor: PHILIPPE ANDRE
IPC: C01B17/04
Filed: 1975-07-09
Granted: 1978-12-19
Abstract: Procédé de désulfuration des gaz, renfermant de faibles concentrations d'hydrogène sulfuré dans lequel on fait passer lesdits gaz, additionnés d'oxygène sur un catalyseur à base d'oxydes et de sels, notamment de sulfures métalliques.  Le procédé est caractérisé en ce que la température de passage du gaz sur le catalyseur est comprise entre 80.degree.C et 200.degree.C et en ce que le catalyseur, chargé de soufre, est régénéré par balayage à l'aide d'un gaz exempt d'oxygène à une température comprise entre 200.degree.C et 500.degree.C.  Le procédé s'applique spécialement au traitement des effluents des installations de désulfuration dans lesquelles se poursuit la réaction de CLAUS à une température inférieure à 180.degree.C sur un catalyseur tel que l'alumine activés ou la silice alumine.
Patent CA-1050360-A (CA)
Inventor: CHENEL PIERRE
IPC: B32B17/00
Filed: 1975-12-11
Granted: 1979-03-13
Abstract: Abstract of the Disclosure A face of a sheet, e.g. of glass, is moved past an extrusion nozzle to deposit a plastic filament adjacent a first edge thereof.  The movement is interrupted when a corner is reached. The nozzle and sheet are moved away from each other to detach the filament adjacent the corner and the sheet is rotated to present its next edge to the nozzle while retaining the continuity of the filament.  The nozzle and sheet are then returned to depositing position and the relative movement resumed to deposit the filament adjacent the next edge.  The apparatus includes means for raising the sheet from conveyor belts and raising the extrusion device by a greater amount, and then turning the sheet by a suction cup arm, the sheet being supported by rollers during the turning. A detector monitors the position of the sheet and controls the operation of the apparatus.
Patent CA-1064317-A (CA)
Inventor: HIDALGO JAIME
IPC: A23J3/00
Filed: 1976-02-03
Granted: 1979-10-16
Abstract: ABSTRACT OF THE DISCLOSURE      A process for producing proteinic filaments of high nutritive value, which comprises preparing an alkaline solution containing proteins which is a mixture of (1) proteins of vegetable origin, soya proteins for instance, and (2) proteins of whey and containing up to 50 %, pre-ferably from 20 to 60 %, by weight of proteins of whey, and passing the solution through spinnerets into an acid coagulation bath to form the proteinic filaments therein.
Patent CA-1069176-A (CA)
Inventor: UMEDA KAORU
IPC: H04B1/16
Filed: 1976-02-20
Granted: 1980-01-01
Abstract: ABSTRACT OF THE DISCLOSURE         A control circuit includes two full-wave rectifiers connected to an AC power source to produce two rectified out-puts having different phases with respect to each other, a combining circuit for combining the two rectified outputs to produce a composite output, and a switching means controlled by the composite output.  The switching means generates a control signal nearly at the same time that the AC power supply is switched on or off.  The control signal is used to energize a device at a delayed time after the AC power supply is switched on, and to de-energize the device substantially at the same time that the AC power supply is switched off.
Patent CA-1039817-A (CA)
Inventor: OPPRECHT PAUL
IPC: B23K11/06
Filed: 1976-03-18
Granted: 1978-10-03
Abstract: METHOD AND APPARATUS FOR SEAM   WELDING OVERLAPPED EDGES     ABSTRACT OF DISCLOSURE           Method and apparatus for longitudinally seam welding overlapped edges of metal sheets with continuously renewable flat wire electrodes in which the edges are overlapped a distance of from three to no more than six times the thickness of the edges and the flat wire electrodes have a width from about two to three times the width of the overlap.
Patent CA-1052209-A (CA)
Inventor: HARNED JOHN L
IPC: F28D15/02
Filed: 1976-04-28
Granted: 1979-04-10
Abstract: SELF-CONTROLLED VAPOR HEAT CAPSULE FOR ENGINE INTAKE MIXTURE HEATING          Abstract of the Disclosure An internal combustion engine is provided with a vapor heat capsule that utilizes a vaporizable heat trans-fer fluid to conduct heat from the engine exhaust gases to a hot plate for heating the intake air-fuel mixture.  The rate of heat transfer and temperature of the heated surface are controlled by selection of a heat transfer fluid, the volume of fluid used and design parameters of the heat capsule to obtain, upon vaporization of all the fluid within the capsule, a fluid boiling and condensing tempera-ture of a predetermined value below the coking temperature of the fuel.  The rate of heat flow through the capsule is varied automatically in response to the cooling effect on the hot plate of heating air-fuel mixture and vaporizing varying amounts of liquid fuel droplets.
Patent CA-1049894-A (CA)
Inventor: NELSON ROGER J
IPC: A01B63/112
Filed: 1976-07-06
Granted: 1979-03-06
Abstract: HYDRAULIC DRAFT CONTROL Abstract of the Disclosure The lower draft link of a tractor three-point hitch includes a sensor to sense draft loads imposed on the draft link by an earth-working implement.  Variations in the draft load cause var-iations in the pressure of the fluid in the sensor from a prese-lected pressure.  A pilot-operated, load control valve is connec-ted to the sensor and is shiftable in response to pressure above and below the preselected pressure to actuate a control mechanism.          The control mechanism actuates a direction control valve for di-recting fluid to and from a hydraulic lift cylinder for respec-tively raising and lowering the draft link to adjust the imple-ment so as to maintain the preselected pressure and thus maintain the desired draft load.
Patent CA-1080385-A (CA)
Title: Butylene terephalate copolyestes containing fibrous reinforcement
Inventor: BREITENFELLNER FRANZ
IPC: C08K13/04
Filed: 1976-07-20
Granted: 1980-06-24
Abstract: REINFORCED MOULDING COMPOSITION BASED ON THERMOPLASTIC POLYESTERS                          Abstract of the Disclosure Moulding materials reinforced with fibre fillers and based on copolyesters of poly-1,4-butylene terephthalate are suitable for the manufacture of mouldings, especially those having thin walls, which have low tendency to distortion.
Patent CA-1057148-A (CA)
Inventor: HALE DAVID J
IPC: F02B61/04
Filed: 1976-08-23
Granted: 1979-06-26
Abstract: CYLINDER HEAD MOUNTING APPARATUS FOR INTERNAL COMBUSTION ENGINES                 Abstract of the Disclosure A V-engine includes angularly oriented cylinder bunks with an outer enclosing rectangular cooling jacket wall and outwardly opening cylinders closed by an outer cylinder head. Bolt attaching lugs are integrally formed on the exterior of the cylinder walls within the cooling chamber and are spaced from the jacket wall to maintain a continuous cooling passageway.          The head is bolted to the cylinder block at such lugs.  The inner and outer vertical edges of the head are beveled with the outer edge reducing the overall width and inner edge increasing the spacing between the cylinder banks.
Patent CA-1048630-A (CA)
Inventor: KIRK THOMAS G
IPC: A01D41/127
Filed: 1976-09-23
Granted: 1979-02-13
Abstract: ABSTRACT OF THE DISCLOSURE                A grain flow rate monitor having a high sensitivity for the detection of seed loss in the chaff ejected from a thresher, which may be used for monitoring heavy or light seed grains.  The monitor includes an acousto-electric sensor upon which the chaff impinges to produce a wide frequency spectrum signal.  This signal is passed through two or more band pass filters which are centered at predetermined fre-quencies.  When two filters are utilized, they will each have a predetermined bandwidth, one of which is contained in the 0 to 25 kHz range and the other contained in the 25 to 100 kHz range.  The filter outputs are coupled to detectors for detecting either the peak amplitudes in each band or the average amplitude.  These detector amplitudes are compared in a comparator to determine whether the ratio of their magnitudes fall within a predetermined ratio range which is indicative of a seed striking the sensor.  The comparator thus provides output pulses related to seed strikes which are recorded and/ or displayed for the thresher operator.
Patent CA-1037718-A (CA)
Inventor: HJALMARSON SVEN I
IPC: B24B27/04
Filed: 1976-10-05
Granted: 1978-09-05
Abstract: Abstract of the Disclosure A grinding machine for grinding workpieces, such as ingots and billets, is provided which, in combination, includes a movable table for supporting the workpiece, a base arranged adjacent to the movable table, and a pair of arms pivotally mounted on the base.  A holder supports a grind-ing wheel, and the holder is pivotally connected to the pair of arms at a pivot so that the contact  force of the grinding wheel with the workpiece is caused by the turning moment of the holder about the pivot.  A hydraulic cylinder is connected to the holder for pivoting the holder and the grinding wheel about the pivot so that the contact force of the grinding wheel may be balanced and controlled.  In addition, the hydraulic cylinder is supported on a movable carriage and is connected to the pivot so that the hydraulic cylind-er is movable with the holder and the grinding wheel as the holder moves about the pivot.
Patent CA-1064333-A (CA)
Inventor: KLUCHERT ROLF E
IPC: F42B4/26
Filed: 1976-11-30
Granted: 1979-10-16
Abstract: Abstract A self-scuttling buoyant pyrotechnic marine marker.          A scuttling pellet of incendiary composition is provided adjacent the pyrotechnic candle, to be ignited as the candle becomes spent and to burn a hole in the side of the jacket, or to clear impurities or residue which may have built up during burning of the candle to block the smoke or flame emission hole of the marker.  Scuttling is then virtually assured by simple wave action.  In this way, the hazard of spent markers being washed ashore to pose a danger to humans or to pollute the environment is reduced.
Patent CA-1084337-A (CA)
Inventor: WEAVER JOHN H
IPC: B41J9/38
Filed: 1977-02-22
Granted: 1980-08-26
Abstract: IMPACT LINE PRINTER             ABSTRACT OF THE DISCLOSURE    An impact line printer having a plurality of high velocity, small mass pivoted print hammers.  Both a high print density and an unusually high impact printing force is achieved by actuating the hammers by a corresponding plurality of closely packed solenoids whose diameters are substantially larger than the spacing of the print hammers.  These solenoids are mounted in the same vertical space but engage their associated print hammers a predetermined distances S1 and S2 from the hammer pivot axis.          Appropriate selection of these distances S1 and S2 achieves uniform printing pressures from all of the hammers while using identical solenoids and identical drive currents.  A paper en-gaging clamp includes a driven drive roller mounting a pair of resilient O-rings.  A pair of pinch rollers, rotatably mounted on pivoted plastic lever arms, are adapted to clamp the paper or other printing medium between the rollers and the O-rings upon application of a force to the lever arms.  The resiliency of the lever arm enables print media of varying thickness to be readily incorporated in printers constructed in accordance with this invention.  A simplified pawl and ratchet wheel assembly employing a single spring is used to advance the drive roller.     A platen sub-assembly comprises a unitary platen member molded     . of plastic and including a series of comb-like guides for the print hammers.  The top surface of the platen supports the print-ing media within the impact line printer and the plurality of print hammers as well as the pinch roller support arms are pivoted within the platen member.
Patent CA-1082575-A (CA)
Inventor: MURAKAMI RYOICHI
IPC: C23C22/86
Filed: 1977-04-20
Granted: 1980-07-29
Abstract: Abstract of the Disclosure:          A process for treatment of phosphate conversion coating for iron and steel which includes a multi-step water rinsing stage after the conversion coating stage, which comprises subjecting a part of the rinsing water used therein to a reverse osmosis treatment, returning the concentrated liquid thereof to the conversion coating stage, and using the filtrate as replenishing water for the conversion coating and/or the digressing and water rinsing stages after subjecting it to the ion exchange treatment.
Patent CA-1078340-A (CA)
Inventor: ZAJAC RONALD E
IPC: B65H55/04
Filed: 1977-05-09
Granted: 1980-05-27
Abstract: SCREW-IN TUBE WITH BREAKABLE TABS FOR COIL OF FLEXIBLE MATERIAL WITH INNER END PAYOUT                 ABSTRACT OF THE DISCLOSURE           A tube for insertion into a coil of flexible material wound in a series of figure-8s with a radial opening extending into the axial opening through which the inner end of the material can be drawn out without twist has a flange spaced from its free end and a second flange adjacent the free end with the space between the two flanges being substantially equal to the wall thickness of a container in which the packages coil is to be enclosed.         The outer flange is interrupted at two points and has an outwardly bent portion.  The tube is inserted from the outside into the radial opening of the coil, which is then placed inside the container with the outer end of the tube directed towards an opening in the container, which has notches therein.  upon turning the tube, the outwardly bent portions ride up on the wall of the container, so that the tube can be turned to a position in which the principal part of the outer flange engages against the outside of the wall.  The tube is cut off so that it does not project beyond the outer flange.  The sloping portions of the outer flange are provided with weakenings adjacent their inner ends, so that upon the assembly of the package these can be broken off and will no longer project from the outside to interfere with handling of the package.
Patent CA-1081305-A (CA)
Inventor: LAUWERIJSSEN PETRUS C
IPC: H01J61/10
Filed: 1977-06-14
Granted: 1980-07-08
Abstract: ABSTRACT:       Low-pressure gas discharge lamp having an inner tube in the discharge space limited by a lamp envelope the outer wall of which inner tube is provided with a luminescent coating, the portion which is provided with this luminescent coating facing away from the portion of the inner tube which is nearest to the wall of the lamp envelope.
Patent CA-1059375-A (CA)
Inventor: KOCHANOWSKI GEORGE A
IPC: E05D15/06
Filed: 1977-07-05
Granted: 1979-07-31
Abstract: ABSTRACT OF THE DISCLOSURE       A structure comprising a door panel having an elongated opening therein, and resilient mounting means on the panel engageable with a rail for moving the panel along the rail, the mounting means comprising a glide including a body disposed on one side of the panel, a roller rotatably mounted on the body engageable with the rail for movement of the glide thereon, a shank on the body extending through the panel opening and moveable therein for relative movement of the glide and the panel, detent flanges provided at both ends of the shank, and a C-shaped glide retainer mounted on the reverse side of the panel having flanges adapted to engage and clamp the detent flanges of the shank, and means for restraining the retainer against transverse movement.
Patent CA-1090655-A (CA)
Inventor: GREEN MELVIN E
IPC: B41F15/08
Filed: 1977-09-06
Granted: 1980-12-02
Abstract: MULTI-PURPOSE SCREEN PRINTING MACHINE     ABSTRACT OF THE DISCLOSURE     An improved low cost screen printing apparatus for printing on both flat and curvilinear objects.  Two vertically aligned shafts support the printing head and, by following the pivotal motion of a rocker arm, raise and lower the printing head relative to the object being printed with a straight vertical displacement, resulting from the controlled movement of the upper shaft by the rocker arm which drives the upper shaft through an elongated slot.          The squeegee assembly operates in a timed relationship with the raising and lowering of the screen head to alternatively raise and lower the squeegee assembly concurrently with the raising and lowering of the screen so that the squeegee and flood bar are retained in an operative position and parallel to the screen surface during both print and flood cycles.          When the screen and squeegee assembly are in the raised position, the squeegee assembly and screen frame are selectively connectable to a reciprocating carriage, for printing either curvilinear or flat objects.
Patent CA-1072496-A (CA)
Inventor: HASSALL ANTHONY G
IPC: B07B1/46
Filed: 1977-09-14
Granted: 1980-02-26
Abstract: ABSTRACT OF THE DISCLOSURE             Screening apparatus for aggregates or the like has a sieve screen comprising a plurality of sieve elements secured to a support frame of moulded synthetic plastics material, each element having a lug formed by an undercut peripheral depending skirt engaging a corresponding recessed sidewall of a groove in the frame. A support frame for such a sieve screen may be in the form of a lattice moulded from synthetic plastics material, preferably have cross members so spaced that each aperture of lattice will be obscured by a different one of the plurality of sieve elements.    The frame may have a plurality of attachment bars projecting at intervals from the undersurface thereof and be supported in the apparatus by a plurality of spaced support bars, each bar having, at intervals along its length corresponding to the spacing of the attachment bars, apertures of a shape to receive said bars.