baber/WOPTO huggingface dataset:
Patent CA-1131915-A (CA)
Inventor: DRIEMEYER MANFRED
IPC: C21B13/14
Filed: 1979-10-10
Granted: 1982-09-21
Abstract: Abstract A method and apparatus for producing steel from iron-ore dust by direct reduction, whereby the said iron-ore dust is pre-heated and is then reduced with a mixture of gas containing a monoxide, the reduction product being introduced, with a gaseous carrier, into a bath of molten iron, below the surface thereof.  The invention reduces the number of steps normally necessary to produce steel directly from iron-ore dust and eliminates problems encountered in the prior art, namely the reoxidation of the prereduced material and collapse of material during reduction.
Patent CA-1104345-A (CA)
Inventor: COTTELL ERIC C
IPC: C10L1/32
Filed: 1979-10-31
Granted: 1981-07-07
Abstract: Title of the Invention FUELS AND METHODS FOR THEIR PRODUCTION                 Abstract of the Disclosure A fuel comprises an emulsion of coal and water with a distillate fuel oil or water with a distillate fuel oil which is rendered stable by blending a residual oil with the distillate fuel oil component of the emulsion. The use of surfactants is in this way avoided.
Patent CA-1127301-A (CA)
Title: Transducers with tapered edge profiles and  assembly thereof
Inventor: KING FRANCIS K
IPC: G11B5/187
Filed: 1979-11-13
Granted: 1982-07-06
Abstract: TRANSDUCERS WITH TAPERED EDGE PROFILES AND ASSEMBLY THEREOF                ABSTRACT OF THE DISCLOSURE           An assembly of a pair of magnetic transducers held in substantial contact with a flexible magnetic disk wherein each transducer has a pair of disk contacting lands broadening in contour toward the trailing end of the transducer and tapering in contour toward the leading end of the transducer, with the leading and side edges of each land being gradually blended into the surrounding active surface of the transducer and with the trailing edge of the land being sharp.  A first one of the lands of each transducer has the read/write magnetic gap in it, and this land is located opposite the land of the other transducer not having the read/write gap in it which is wider than the first land.  The centers of the opposite lands are in alignment, and the centers are measured on a plane passing through the read/write gaps of the transducers.
Patent CA-1124534-A (CA)
Inventor: HIRAI SEIICHI
IPC: F16D3/2245
Filed: 1980-01-24
Granted: 1982-06-01
Abstract: The present invention provides a constant velocity universal joint comprising an outer member and an inner member mounted together through a cage member having an outer diameter spherical surface and an inner diameter spherical surface which are in spherical surface contact with an inner diameter spherical surface of the outer member and an outer diameter spherical surface of the inner member, respectively, the cage member being provided with a plurality of balls mounted in respective ball windows and the respective balls being in engagement with respective pairs of longitudinally extending ball grooves formed in the inner diameter spherical surface and the outer diameter spherical surface, respectively, the respective ball grooves being offset such that respective bottom surfaces thereof extend substantially along respective spherical surfaces which are so eccentric to each other that their respective centers are located at points A and B which are equidistant from the universal joint center, the cage member being offset such that the outer diameter spherical surface and the inner diameter spherical surface thereof are eccentrically arranged with respect to each other such that their respective centers are located at or near said points A and B, the inner diameter spherical surface and the outer diameter spherical surface of said respective outer and inner members which are in spherical surface contact with said inner and outer surfaces of said cage member are formed into respective spherical surfaces which are eccentric to each other in the same manner as above.
Patent CA-1133226-A (CA)
Title: Process for removing color bodies from brown  phosphoric acid
Inventor: MCCONOMY THOMAS A
IPC: C01B25/235
Filed: 1980-02-18
Granted: 1982-10-12
Abstract: "IMPROVED PROCESS FOR REMOVING COLOR BODIES         FROM BROWN PHOSPHORIC ACID"     Abstract of the Disclosure A system and process for decolorizing and purifying brown phosphoric acid using an activated carbon charac-terized by having a net pore volume of at least 0.40 cc./ g. for those pores with diameters from 35 to 1000A.
Patent CA-1132772-A (CA)
Inventor: ARONS GILBERT N
IPC: A62D9/00
Filed: 1980-02-18
Granted: 1982-10-05
Abstract: Abstract of the Disclosure A laminated, highly sorbent, active carbon fabric which is permeable to moisture vapor while sorbing substantial quantities of toxic chemical vapors, and process of making such a laminated fabric.
Patent CA-1093827-A (CA)
Inventor: MARKELS MICHAEL JR
IPC: C22B11/00
Filed: 1980-03-05
Granted: 1981-01-20
Abstract: ABSTRACT OF THE DISCLOSURE           A process for economically recovering metal values, especially precious metal values, from waste waters comprising a mixture of natural surface water, industrial waste water and organic waste, where the metal values appear in concentrations below levers previously commercially of interest, including the steps of concentrating the metal values of the waste waters by bacterial treatment thereof to imbibe and capture the metal values from the waters and immobilize them in a sludge, coagulating and I separating the sludge from the water, de-watering the sludge and burning off the organic matter, and recovering selected metal values by inorganic metal-winning process steps.
Patent CA-1141701-A (CA)
Inventor: WRIGHT LESLIE S JR
IPC: C25D21/18
Filed: 1980-03-06
Granted: 1983-02-22
Abstract: Abstract of the Disclosure A process and electrodialysis cell for regenerating used chromic acid baths for reuse.  The process and apparatus have an anolyte chamber and a catholyte chamber separated by a cation permeable membrane and utilize as an improved catholyte solu-tion an aqueous mixture of a water soluble salt such as sodium sulfate.  A preferred anode which is not decomposed by the chromic acid bath comprises by weight about 1.5% of silver, about 5% of antimony, about 3% of tin and the balance lead.
Patent CA-1143841-A (CA)
Inventor: ROBERTS F ALEXANDER
IPC: G01S19/49
Filed: 1980-05-08
Granted: 1983-03-29
Abstract: ABSTRACT OF THE DISCLOSURE "MICROCOMPUTER-CONTROLLED PORTABLE SATELLITE   SIGNAL SIMULATOR FOR EXPLORATION SYSTEMS, AND METHOD OF USE" In accordance with the invention, satellite navigation receiver system of an exploration system for exploring for hydrocarbons in earth formations can be tested for fieldworthiness using a portable microcomputer-controlled satellite navigation simulator.  From encoded inputs of local latitude, longitude, Greenwich mean time and antenna height, both array data parameters and real-time control signals are generated for simulating signals of an orbiting TRANSIT navigation satellite vis-a-vis the satellite navigation receiver system.  To such system the received signals are indistinguishable from conventional TRANSIT satellite navigation signals.  Result:  by merely cross-checking simulator "turn-key" encoded data with the final computed fix, a technologist (who need not be a programming expert) can determine the fieldworthiness of the satellite navigation receiver system.
Patent CA-1181111-A (CA)
Inventor: MUETTERTIES ANDREW J
IPC: A61M39/02
Filed: 1980-07-14
Granted: 1985-01-15
Abstract: ROTATABLE CONNECTING DEVICE FOR     I.V. ADMINISTRATION SET          Abstract of the Disclosure A rotatable connecting device which provides for quick and positive interfitment between a venipuncture unit and an intravenous administration set without rotation or twisting of the venipuncture unit or intravenous tubing. A rotatable collar is provided on one of the members con stituting the connecting device and is captively held thereon while permitting longitudinal movement,  Fric-tional engaging means are disposed on the body member re-taining the collar as well as the collar to provide an interference fitment.  Internal threads are defined in the rotatable collar for engagement with a flange member dis-posed on the catheter hub.  A luer lock fitment is afforded between the catheter member and the member carrying the rotatable collar.
Patent CA-1139301-A (CA)
Inventor: SIMPSON VICTOR J
IPC: F28F9/02
Filed: 1980-07-29
Granted: 1983-01-11
Abstract: INVENTOR:  Victor John SIMPSON            TITLE:  RADIATORS FOR USE IN HOT WATER CENTRAL HEATING         SYSTEMS     ABSTRACT OF THE DISCLOSURE         A radiator for use in hot water central heating systems is constructed from extruded aluminium alloy sections.   One finned configuration of section having a tubular duct extending therethrough is used as the heat exchanger which interconnects the fluid flow and return headers.   These each incorporate locking flanges which interlock with   respective external slots pre-formed in the fins on each side of the heat-exchanger sections.   Pressure tight fluid connections between the headers and the duct in each heat-exchanger section are made by double-ended chamfered barrel nipples.
Patent CA-1132798-A (CA)
Title: Method for reducing the explosiveness of the gases  vented fom urea-producing installations
Inventor: LAGANA VINCENZO
IPC: C07C239/00
Filed: 1980-08-11
Granted: 1982-10-05
Abstract: ABSTRACT OF THE DISCLOSURE:     The invention relates to a method of reducing the explosiveness of gases vented from a urea-producing plant, wherein the urea-production process comprises the steps of: a) combining ammonia and carbon dioxide in a reactor under a first pressure of 50 to 450 atmospheres to form a product containing urea, ammonium carbamate and water; b) decomposing the ammonium carbamate under said first pressure into ammonia and carbon dioxide; c) condensing under said first pressure said ammonia and said carbon dioxide and separating therefrom uncondensable products; d) further decomposing residual ammonium carbamate under a second pressure of 10 to 25 atmospheres; e) condensing under said second pressure the major fraction of the conden-sable products; f) feeding the condensed and uncondensed pro-ducts under said second pressure together with the uncondensable products of step c) to a rectification column, and g) removing the ammonia from the rectification column outlet stream to obtain an explosive uncondensable gaseous mixture, said method comprising admixing with said explosive uncondensable gaseous mixture a gaseous stream obtained as a by-product in the pro duction of ammonia, said stream  containing, in parts by volume, 0.1 to 77% of hydrogen, 0.1 to 29% of nitrogen, 0.1 to 50% of other inert gases, and methane to make up 100 parts.
Patent CA-1149839-A (CA)
Inventor: FANDEL JOSEPH N
IPC: F16B45/00
Filed: 1980-08-15
Granted: 1983-07-12
Abstract: DISENGAGING APPARATUS                             Abstract Disengaging apparatus including a hook having its pivot point and its engaging point substantially vertically aligned, being positioned between a pair of plates and having an integral counterweight extending laterally from the engaging point.  A first link is attached at one end to the lateral extension and at the other end to the first end of a second link which rotates about a fixed point.  The links have a first extended position under a load and rotate to a second position, thereby rotating a constant-radius engaging surface of the hook about its center at the pivot point of the hook in light or no load situations.  Additionally, a stop and locking members may be provided to prevent accidental release of the hook.
Patent CA-1161612-A (CA)
Inventor: HAUSCH WALTER R
IPC: B29C65/00
Filed: 1980-09-03
Granted: 1984-02-07
Abstract: ABSTRACT OF THE DISCLOSURE:         A process and composition for applying and bonding a curable polymer or prepolymer, for example, an amine curable polymer or prepolymer, at ambient tempera-tures to the surface of a cured elastomer substrate.  The elastomer article or substrate is treated with an organic oxidant selected from the group consisting of N-halosulfo-namides, N-halohydantoins, N-haloamides, N-haloimides, and the various iosmers of mono-, di, and trichloroisocyanuric acid.  A composition of an amine curable polymer or pre-polymer is prepared with an amine curing agent.  To the curing agent and curable polymer or prepolymer composition is added a polar solvent which is mixed with the resulting blend or mixture and added to the treated elastomer sur-face.  The polymer or prepolymer cures at ambient tempera-ture and becomes bonded to said elastomer.  The application is relatively easy, since the entire mixture is a liquid and can be applied in situ.  The invention is particularly suitable for repairing various damaged elastomer articles such tires (especially off-the-road), conveyor belts, hoses, preparation of caulking or sealing compounds, and especially in bonding tire lugs or tire treads to a tire carcass.
Patent CA-1153149-A (CA)
Inventor: KRISHNAN SIVARAM
IPC: C08G63/00
Filed: 1980-10-17
Granted: 1983-08-30
Abstract: Mo-2016-CIP      COPOLYCARBONATES PREPARED WITH 2,2'-BIS(P-HYDROXYPHENYL) 1,1,1,3,3,3-HEXAFLUOROPROPANE            ABSTRACT OF THE DISCLOSURE       Copolycarbonate resins are prepared from an aromatic diol and a carbonic acid derivative.  2,2 bis(p-hydroxy-phenyl) l,1,1,3,3,3-hexafluoropropane is co-reacted in a minor amount with the aromatic diol and carbonic acid derivative to form a polycarbonate having improved heat distortion characteristics.
Patent CA-1129612-A (CA)
Inventor: LAMBERT RALPH G
IPC: A47L13/16
Filed: 1980-11-12
Granted: 1982-08-17
Abstract: ABSTRACT OF THE DISCLOSURE         An improved cleaning-and washing-pad material, which pad material comprises in combination:  a soft natural or synthetic shearling sheet material forming one surface of the pad material and a tough, nylon-mesh material forming the other surface of the pad, the shearling material and the nylon material sewed together about the peripheral edges to form a cavity therein; and a soft, resilient, substantially open-cell, polyurethane or cellulose sponge material loosely inserted within the hollow cavity to provide body and bulk to the pad, whereby the improved cleaning- and washing-pad material presents a soft water-absorbent surface for washing and a tough scrubbing surface for cleaning purposes.
Patent CA-1155480-A (CA)
Inventor: BROWER BOYD G
IPC: G03B15/04
Filed: 1981-01-07
Granted: 1983-10-18
Abstract: D-22,202 TITLE:  PHOTOFLASH UNIT HAVING REFLECTOR WITH OPENINGS SURROUNDED         BY TRANSPARENT REGIONS                          ABSTRACT    An improved photoflash unit comprising a circuit board with lamp-tiring circuitry thereon, a plurality (e.g., ten) of electrically activated photoflash lamps, and a reflector located between the lamps and circuitry.  The lamp-firing circuitry includes at least one switch which is activated by radiant energy emitted from an adjacent photoflash lamp.  The improvement comprises providing at least one longitudinal opening (slot) within a cavity portion of the reflector between the activating lamp and switch, and  surrounding the opening with a transparent, non-conductive region to thereby assure consistent switch activation by substantially eliminating arcing between the reflector and circuitry.
Patent CA-1159674-A (CA)
Inventor: GREHAN GERARD
IPC: G01N15/02
Filed: 1981-02-23
Granted: 1984-01-03
Abstract: ABSTRACT OF DISCLOSURE      A method and apparatus for determining the diameter of a particle in suspension in a fluid using coherent electromagnetic radiation is disclosed. A parallel beam of coherent electromagnetic radiation is directed towards the particle and the diffused radiation is collected in a predetermined direction. The diameter is defined by the ratio between the diameter of the particle in the predetermined direction and the incident radiation energy. The minimum angle of  deviation between the axis of incident radiation and collection of diffused radiation so that there is one-to-one correspondence between the diffused energy and the diameter is determined. The radiation collecting angle is selected to be equal to or greater than the minimum angle. The incident beam is corrected,for example,by a first afocal system for enlarging the section of the beam and then correcting filter and a second afocal system for reducing the section to a suitable size.          The diameters of particles which may be determined ranged between 0.5 and 200 micrometers, Simultaneous determination of particle velocity may also be provided.
Patent CA-1143765-A (CA)
Inventor: BLANCHETTE CLAUDE
IPC: B62B13/18
Filed: 1981-03-13
Granted: 1983-03-29
Abstract: ABSTRACT OF THE DISCLOSURE     A convertible sled is disclosed for use on snow as well as surfaces devoid of snow.  The sled comprises a pair of runners rigidly secured to the underside of the sled and three pivotal wheels.  The first, front wheel is secured to a rotatable rod extending longitudinally and centrally under the front portion sled.  Linkage means connects this rod to two other rods each longitudinally rotatably disposed adjacent one of the runners.  An operating lever easily accessible at the front of the sled and secured to the first named rod serves to pivot all three wheels between a first ground-engaging position with the runners off the ground, and 8 second inoperative retracted position relative to the runners.
Patent CA-1165114-A (CA)
Inventor: TOUZE FRANCOIS
IPC: C21B7/10
Filed: 1981-04-02
Granted: 1984-04-10
Abstract: ABSTRACT          The invention concerns heat exchange devices for cooling the wall and the refractory of a blast furnace. Such a device, constituting a cooling box, comprises :          - a closed enclosure, elongated and having a shape of revolution or substantially of revolution, this enclosure comprising an outer end and an inner end, - an axial capacity defining with said enclosure an annu-lar capacity, this axial capacity comprising an outer end and an inner end, - a supply orifice for feeding a cooling liquid into the axial capacity through its outer end, - and a discharge orifice for discharging the cooling liquid from the annular capacity through the outer end of the enclosed enclosure - deflector means provided between the inner end of the axial capacity and the inner end of the enclosed enclosure, these deflector means being arranged so as to impart to the whole of the flow of the cooling liquid :          - an axial component, directed towards the inner end of the enclosed enclosure, for cooling the central part of the inner end of this enclosure, - a radial component for cooling the rest of the inner end of the enclosed enclosure, - an axial component directed towards the outer end of the closed enclosure for causing the return of the cooling liquid, - and a tangential component for cooling the part of revolution of the closed enclosure.
Patent CA-1145639-A (CA)
Inventor: SCHUHMACHER ERNST
IPC: A01F12/30
Filed: 1981-04-14
Granted: 1983-05-03
Abstract: CLEANING DEVICE FOR HARVESTING MACHINES        Abstract of the Disclosure In a cleaning device for threshed crop material, the materi-al is introduced into the upstream end of a drum by a coaxial auger feeder.  An air flow whirling around the inner wall of the drum is created by a tangentially connected blower.  Heavier fractions of the crop material (grain) tend to be flung against the drum wall and leave through grates into a closed conveyor system, creating dynamic air pressure in the drum.  Chaff and straw tend to be held in vortex towards the central core of the drum and are discharged axially through the downstream end of the drum.  Various alternative embodiments with multiple blowers, multiple air inlets into the drum, recirculation of the cleaning air, finger rakes in various dispositions inside the drum, crop material fed through the blower delivery duct and adjustable baffles for controlling air flow entering the drum are described.
Patent CA-1166143-A (CA)
Inventor: HUANG MING-FUANG
IPC: F23Q9/00
Filed: 1981-05-28
Granted: 1984-04-24
Abstract: AUTOMATIC SAFETY GAS HEATING DEVICE ABSTRACT          Unlike directly controlling a valve of the gas conduit in the conventional gas heating device, a valve rod which is con-necting to a diaphram valve merely actuates a microswitch for an electric control board.  A first gas conduit and a second gas conduit which communicate separately with the nozzle of a pilot burner and the nozzles of a main burner, are controlled res-pectively by a first solenoid operated valve and a second so-lenoid operated valve.  In the vicinity of the nozzle of the pilot burner, a sensor is provided for detecting the presence of the flame of the pilot burner.  As the flame of the pilot burner is ignited by the igniter, the sensor will send a first electric signal to the electric control board to discontinue the sparkling of the igniter, and to open the second solenoid operated valve and supply the gas to the main burner.  As the flame is undesirably blown out during the use of gas heating device, the sensor will send a second electric signal to the electric control board to continue the sparkling of the igniter, and to actuate the second solenoid operated valve and stop the gas supply to the main burner so as to prevent the unburned toxic gas from flowing out of the nozzle thereof which will suffocate the person.
Patent CA-1175945-A (CA)
Inventor: MUSMANN HANS-GEORG
IPC: H04B14/04
Filed: 1981-06-02
Granted: 1984-10-09
Abstract: ABSTRACT OF THE DISCLOSURE     A method for effecting digital to analog conversion of PCM signals by a generalized interpolative procedure, by sampling the PCM signals at a first sampling rate and supplying each sampled word in succession to a first input of a digital adder; dividing each word at the output of the adder into a first part representing the higher value portion of the adder output word and having a length shorter than that of the adder input word, and a second part representing the lower value part of the adder output word; conducting the second part of each adder output word through a digital, nonrecursive counter feedback filter having a degree greater than one at a clock pulse rate which is an integral multiple of the sampling rate, and supplying each resulting word at the filter output to a second input of the digital adder where it is added to the stored word at the first adder input; converting the first part of each adder output word into an analog signal in a digital/analog converter having a small number of available output values; and passing the analog signal at the output of the converter through an analog lowpass filter.
Patent CA-1222732-A (CA)
Inventor: HIRAGA MASAHARU
IPC: F04C28/16
Filed: 1981-07-02
Granted: 1987-06-09
Abstract: SCROLL TYPE FLUID DISPLACEMENT APPARATUS            ABSTRACT   A scroll type fluid displacement apparatus is disclosed. The apparatus includes a housing. A fixed scroll member fixedly disposed within the housing and comprises a first end plate means from which a first wrap means extends. An orbiting scroll member also comprises a second end plate means from which a second wrap means extends. Both wrap means interfit at an angular and radial offset to make a plurality of line contacts to define at least one pair of symmetrical sealed off fluid pockets. The first end plate means is formed with two holes which are placed at the symmetrical position. A valve means controls the passage of fluids through the holes. The valve means is controlled by the changes of the external environment. The capacity of compressor can thereby be easily changed in response to the changes in the external environment.