baber/WOPTO huggingface dataset:
Patent CA-1054707-A (CA)
Title: Method of detecting alterations in read out signals, and apparatus for implementing the same
Inventor: ROMEAS R
IPC: H04N5/94
Filed: 1975-07-22
Granted: 1979-05-15
Abstract: METHOD OF DETECTING ALTERATIONS IN READ OUT SIGNALS, AND APPARATUS FOR IMPLEMENTING THE SAME     Abstract of the Disclosure The present invention relates to a method and apparatus for detecting alterations in signals produced by the read-out of information recorded upon a data carrier, The alterations correspond either to an abnormally high frequency or to an abnormally low frequency. Detection is achieved by means of one, two or three monostable switching circuits supplied with trigger pulses originating from squared read-out signals. The defect signal produced by the last monostable switching circuit is used for controlling a defect correcting circuit.
Patent CA-1051445-A (CA)
Inventor: LARKIN WILLIAM A
IPC: C07F7/22
Filed: 1975-08-21
Granted: 1979-03-27
Abstract: NOVEL PROCESS     ABSTRACT OF THE DISCLOSURE -  Certain organotin halides can be recovered in substantially quantitative yield from their aqueous solutions by adding a non-reactive highly soluble inorganic salt to partially or completely saturate the solution and then heating the resultant solution as required to effect a separation of the organotin halide from the aqueous phase.                             -i-
Patent CA-1045004-A (CA)
Inventor: PETROV DMITRY A
IPC: C30B17/00
Filed: 1975-09-02
Granted: 1978-12-26
Abstract: DEVICE FOR MAKING SINGLE-CRYSTAL PRODUCTS           ABSTRACT OF THE DISCLOSURE      The device according to the invention is intended for making single-crystal products by the vertically-directed crystalization of molten metal on a seed and comprises a ceramic mould with a seed pocket in the bottom and a cooler with a flat face surface, installed under the mould and having an axial hole for accommodating the seed cooling unit interacting with the seed pocket and, according to the invention, installed with a provision for independent vertical movement relative to the cooler and seed pocket and made in the form of a tube embracing the seed pocket, said tube having an internal partition which divides the tube space into two compartments the lower of which is supplied with refrigerant and is made of a metal whose thermal conductivity ensures a maximum temperature gradient along the length of the seed for the initiation of a crystal.  The device will be used to advantage for making single-crystal ingots and products of metals and metal alloys with a preset crystallographic orientation such as, say, rotor blades of turbine engines and permanent magnets.      The device according to the invention ensures powerful cooling of the seed pocket with refrigerant, required for ensuring reliability and reproducibility of the process.
Patent CA-1082880-A (CA)
Inventor: ALDER HANSPETER
IPC: C01F7/50
Filed: 1975-09-19
Granted: 1980-08-05
Abstract: A B S T R A C T            In this process for the manufacture of aluminium chloride, aluminium oxide is transformed by dehydration into an activated form before being converted into the chloride by means of a chloridising and reducing gas mixture.
Patent CA-1062689-A (CA)
Inventor: SATO HIROSHI
IPC: B01D17/02
Filed: 1975-09-26
Granted: 1979-09-18
Abstract: ABSTRACT OF THE DISCLOSURE           Contaminants present in waste water are removed by using a material which comprises a finely divided substance capable of selectively adsorbing the contaminants due to its physiochemical activity and an organic high polymer  carrier supporting the finely divided substance.    The finely divided substance is selected from an active carbon and compounds containing at least one metal of calcium, magnesium, zinc, lead, iron, aluminum barium, manganese, cobalt, nickel, tin, strontium and copper.   The material has a specific surface area of more than 0.5 m2/g and a fibrous or flake-like struc-ture wherein the carrier and the finely divided substance are in a complex form of being substantially uniformly integrated with each other    The material is prepared by the method comprising mixing the finely divided substance with at least 5% by weight, based on the weight of the finely divided sub-stance, of an organic high polymeric material and a solvent capable of dissolving or swelling the organic high polymeric material at an elevated temperatures heating the mixture at a temperature higher than the boiling point of the solvent in a closed vessel, thereby dissolving or swelling the organic high polymeric material to form a slurry, and then extruding the slurry under its autogeneous or higher pressure through an orifice into an environment of a lower pressure.
Patent CA-1050664-A (CA)
Inventor: BODNER RONALD E
IPC: G06F13/28
Filed: 1975-11-12
Granted: 1979-03-13
Abstract: DATA TRANSFER CONTROL SYSTEM            Abstract Data transfers between input/output (I/O) devices and a central processing unit (CPU) take place under instruction or base cycle steal control a byte at a time where the I/O device attachments connect to ports and the ports connect to the CPU.  Data transfer can be synchronous or asynchronous.  The port involved in the data transfer sends out a device address and command information simul-taneously on port data bus out and command bus out, respec-tively, to the I/O attachments.  The addressed I/O device can respond any time within a predetermined time interval. If a I/O device does not respond within the time interval, a blast condition generated by the port causes the I/O attachments to clear the busses between it and the port. During execution of an I/O instruction, the CPU clock is first held in a particular time state while phase clocks and port clocks continue to run and synchronization bet-ween the port and I/O attachment is taking place.  Upon completion of the synchronization sequence, the port gen-erates an advance time signal to the CPU to advance the CPU clock.  The CPU clock runs and the storage clock can be activated depending upon the type of I/O instruction being executed, the CPU clock runs until it reaches a second particular time state and then remains at that particular time state until the port again generates an advance time signal to the CPU.  The activity taking place as the CPU clock is advancing depends upon the type of I/O instruction, but generally a data transfer occurs, and the data is entered into or transferred from local stor-age registers or main or control storage.  The extended second particular time state is used for a de-synchroniza-tion sequence between the port and I/O attachment.
Patent CA-1037349-A (CA)
Inventor: KIESOW LUTZ A
IPC: F16K11/16
Filed: 1975-11-27
Granted: 1978-08-29
Abstract: Title MIXING VALVE                  Abstract Two gases are fed to a mixing valve having two outlets, and the proportions of the two gases, at each of the said outlets, is varied inversely in accordance with the position of a moveable portion of the mixing valve.  If the back pressure at the two outlets is equal, and if the supply pressure of the two gases is equal, the proportioning of the two gases will be accurately deter-mined by the adjustment of the valve.  Thus, in an automatically controlled system requiring the presence of gases in time-variable proportions, proper proportioning can be achieved by the use of a mechanical valve, without the necessity of a gas testing analyzer and a feedback system for controlling an ordinary mixture propor-tioning valve.
Patent CA-1047187-A (CA)
Inventor: BLACKHALL ALEXANDER
IPC: C08G73/08
Filed: 1975-11-28
Granted: 1979-01-23
Abstract: ABSTRACT OF THE DISCLOSURE         The production of a brominated, polyarylene-1,3,4-oxadiazole solution in oleum involves adding bromine to a pre-cursor solution of the polymer, wherein the polymer is capable of further polymerisation and the solution has a viscosity below a predetermined minimum value, and then further polymerising the brominated polymer to an extent which effects an increase in the viscosity to at least the predetermined minimum value.          The invention provides a polymer solution of sufficiently low melt viscosity that wet extrusion is made more efficient.
Patent CA-1045784-A (CA)
Inventor: MYLES THOMAS A
IPC: C30B31/16
Filed: 1975-11-28
Granted: 1979-01-09
Abstract: Abstract of the Disclosure A method for the preparation of pyrophosphates such as SiP2O7 is disclosed, whereby the undesired formation of by-products such as Si2P2O9 is minimized.  Such pyrophosphates are particularly suitable for the formation of solid semi-conductor diffusion sources, wherein the presence of by-products is seriously detrimental.
Patent CA-1046813-A (CA)
Title: Back projection system and screen for image projection
Inventor: ITOH NORIO
IPC: G03B21/625
Filed: 1976-02-24
Granted: 1979-01-23
Abstract: ABSTRACT OF THE DISCLOSURE   Three cathode ray tubes are provided for projecting and converg-ing three different primary color images on a back projection screen. The back projection screen has a first cylindrically lenticulated face for determin-ing a viewing angle of the screen and a second cylindrically lenticulated face on the opposite side thereof for arranging light axes of three luminous fluxes projected from the three cathode ray tubes in parallel.  A color shading of a color image projected on the screen caused from angle difference of three light axes can be prevented owing to the second cylindrically lenticulated face of the screen.
Patent CA-1111712-A (CA)
Inventor: GEURTSEN FRIEDRICH H H
IPC: B41F31/32
Filed: 1976-04-29
Granted: 1981-11-03
Abstract: PRINTING CODER                      Abstract of the Disclosure A printing apparatus for imprinting or coding closures and the like with specified information.  The printing apparatus includes a floating print roll which is independently adjustable to accommodate height variations in the items being encoded and is lever supported for quick release from an ink metering roll.  The print roll is rotatably driven and released from the ink metering roll by the items being imprinted.  The metering roll is fed by an inking roll, and both are driven to relieve wear between them.
Patent CA-1039260-A (CA)
Inventor: HOROWITZ CHARLES
IPC: F16L29/00
Filed: 1976-05-05
Granted: 1978-09-26
Abstract: ABSTRACT OF THE DISCLOSURE         A gladhand construction is combined with a shutoff cock and means for mounting the combination to a trailer body.  A fit-ting is positioned within a passage of the gladhand body for use in making a connection with a conduit on the trailer and there is a spring-biased bushing intermediate the fitting and shutoff cock for forming a seal therebetween.
Patent CA-1083529-A (CA)
Inventor: DE RAMAIX MAURICE A
IPC: B01D65/10
Filed: 1976-05-26
Granted: 1980-08-12
Abstract: Abstract of the Disclosure An electrodialysis cell intended to be used for the electrolytic rejuvenation of ferricyanide bleach bath into ferricyanide comprises a vessel which is made of carbon and which serves as anode, and a cathode, the space defined by both electrodes being separated by a cationic permeable mem-brane which is a wall made of asbestos cement which has been treated with a strong acid to remove a substantial part of the cement.  The elements of the cell preferably have a cylindrical structure and are concentrically arranged with respect to each other.
Patent CA-1053726-A (CA)
Inventor: ECKSTEIN GERSHON
IPC: B05B15/00
Filed: 1976-06-07
Granted: 1979-05-01
Abstract: ABSTRACT      A pipe suitable for use in drip irrigation, which pipe comprises piping and integral dripper units spaced at predetermined intervals along the length of the piping, the piping constituting outer sleeves of the dripper units and having an aperture in alignment with each of the dripper units, the dripper units having an inlet and an outlet, the inlet being in communication with the interior of the piping and the outlet being in communication with the aperture and the exterior of the piping.
Patent CA-1061617-A (CA)
Inventor: RAMSAY MELVIN M
IPC: C03B37/018
Filed: 1976-07-09
Granted: 1979-09-04
Abstract: A LIMITED MODE OPTICAL FIBER                    Abstract of the Disclosure A single mode optical fiber having a central core region of uniform composition and thickness and core end regions each having a core with a graded composition and increasing thickness towards the end of the fiber.  The fiber maintains a constant normalized frequency with a minimum bending loss.  Methods are also provided for forming the fibers from a fiber optic preform.
Patent CA-1086992-A (CA)
Inventor: BILDSTEIN HUBERT
IPC: B22F5/00
Filed: 1976-07-23
Granted: 1980-10-07
Abstract: ABSTRACT OF THE DISCLOSURE         A powder metallurgical method for the production of metallic coin blanks which are used for the coining of readily identifiable coins having particular known characteristics for protection against counter-feiting.  The method comprises the formation of each coin blank component into a powder, controllably mixing said powdered components together to form a total powder mixture, pressing the total powder mixture to at least 50% of the theoretical coin blank density, and sintering at a temperature below the melting temperature of the components in a controlled atmosphere to give the coin blank.
Patent CA-1094039-A (CA)
Inventor: RICCIARDI RONALD J
IPC: G01G11/08
Filed: 1976-12-10
Granted: 1981-01-20
Abstract: ABSTRACT OF THE DISCLOSURE           Disclosed herein is an automatically controlled weigh feeding apparatus including a container prefilled with a substance, a device for discharging the substance from the container at a controllable weight, apparatus for weighing the container and its contents and for producing an electrical signal proportional to that weight, a first amplifier for amplifying the electrical signal, a first analog-digital converter coupled to said first amplifier and a digital computer coupled to said first analog-digital converter for computing the weight of substance remaining in the container.          A second amplifier is coupled to said first amplifier and a ramp off-set circuit which is controlled by the digital computer inputs a second signal to the second amplifier means having a controlled stepping output applied as a second input signal to the second amplifier to maintain the output of the second amplifier within a given selected range of amplitude during one time cycle of operation.  A second analog-digital converter interposed between the second amplifier and the digital computer.  The digital computer is adapted to compute a corrective signal based on the signal received for controlling the discharge of the substance from the container.
Patent CA-1076617-A (CA)
Inventor: SWERSEY BURT L
IPC: G01G1/24
Filed: 1976-12-21
Granted: 1980-04-29
Abstract: F L E X U R E   S C A L E      Abstract of the Disclosure The flexure scale is made of compact, inexpensive construction and includes a load frame which is supported via flexures from a stationary support frame.  The load frame in-cludes two oppositely directed beam arms which are displaced when a load is placed on the load frame.  The two beam arms are connected together to permit a summation of their displace-ments and the longer beam arm is secured at the free end to the support frame by means of a spring which proportionally re-strains the displacement of the beam arm.  A linear variable differential transformer is mounted on the surface frame to emit signals corresponding to the displacements of the beam arms to a digital readout means.  The electrical output of this transformer is adjusted to produce a fixed output for a standard load.          A system composed of a multiplicity of these scales requires only a single read-out means.
Patent CA-1086956-A (CA)
Inventor: MACKAY PATRICK W
IPC: C22B5/12
Filed: 1976-12-31
Granted: 1980-10-07
Abstract: ABSTRACT OF THE DISCLOSURE A method and apparatus for measuring and controlling the percentage reduction of iron ore in a vertical shaft, moving bed, gaseous reduction reactor.  Reducing gas comprising hydrogen, methane, carbon monoxide and carbon dioxide is fed from a source of such gas to the bottom of the reduction zone of the reactor and is heated to an elevated temperature before being introduced into the reactor.  The flow and composition of the reducing gas are determined at a first location before the gas enters the reactor. The effluent gas from the reactor is cooled and its flow and com-position determined at a second location after the gas has been cooled.  The measured flows and compositions are correlated with the rate of sponge iron production to obtain a measurement of percentage reduction of the ore and this measurement is used, either manually or automatically, to regulate the rate of removal of sponge iron from the reactor to maintain the percentage reduc-tion at a predetermined desired value.
Patent CA-1072808-A (CA)
Inventor: GREGG Richard
IPC: A23F5/26
Filed: 1977-01-28
Granted: 1980-03-04
Abstract: A METHOD OF MAKING AN IMPROVED             COFFEE VOLATILES CONCENTRATE            Abstract of the Disclosure A method of steam-stripping and recovering desirable volatiles from roast and ground coffee particles by sub-jecting them to conditions which preserve the freshness of the coffee volatiles, as well as the freshness of the soluble solids remaining in the devolatilized coffee.          A semi-bed of mechanically fluidized roast and ground coffee is sprayed with 32°-110°F (0°-43.3°C) water and contacted with steam for devolatilization under an absolute pressure of 5-100 mm of Hg and a temperature of 32°-110°F.  The resulting volatiles-laden steam is then condensed under an absolute pressure of about 0-80 mm Hg and under supercooling conditions to provide a frost.          A coffee volatiles-containing concentrate is prepared by contacting the frost with an aqueous coffee extract.
Patent CA-1094719-A (CA)
Title: Process for the preparation of dispersible dispersion  powders
Inventor: SEIP DETLEV
IPC: C08F14/00
Filed: 1977-04-01
Granted: 1981-01-27
Abstract: PROCESS FOR THE PREPARATION OF DISPERSIBLE DISPERSION                       POWDERS Abstract of the disclosure:      Dispersion powders having excellent properties for the production of synthetic resin-bound plasters in dry form are obtained by polymerizing vinyl acetate with other olefini-cally unsaturated monomers in the presence of an ionic emul-sifier, a non-ionic emulsifier and at least one polyvinyl alcohol and spray drying the copolymer dispersion in a spray tower with simultaneous introduction of an anti-caking agent to obtain a fine powder.
Patent CA-1118798-A (CA)
Inventor: RUDY ERWIN
IPC: C04B35/56
Filed: 1977-04-20
Granted: 1982-02-23
Abstract: ABSTRACT OF THE DISCLOSURE Refractory. hard carbide alloys intended primarily as replacement for the cast eutectic WC + W2C tungsten carbides currently used as hard components in wear resistant facings, consist of fine-grained and hard two-phase mixtures of subcarbide. (Mo,W)2C, and hexagonal mono-carbide (Mo.W)C. solid solutions, and are formed by solid state decomposition of the pseudocubic.??-(Mo.W)3C2 . or cubic .alpha.-(Mo,W)C?-x solid solutions. The carbide alloys of the invention can be combined with low-melting metal binders to form cemented carbide alloys of at least equivalent wear-resist-ance to alloys using the eutectic tungsten carbides.
Patent CA-1074308-A (CA)
Inventor: SZAREK WALTER A
IPC: A23L27/30
Filed: 1977-04-22
Granted: 1980-03-25
Abstract: Abstract L-sucrose or .beta.-?-fructofuranosyl .alpha.-?-glucopyranoside --(I), the enantiomer of naturally occuring ?-sucrose,which does not appear in nature has been synthesized and has been found to be sweet.  It is unlikely that ?-sucrose is metabolized in the manner of ?-sucrose. In a preferred process for producing ?-sucrose the key step is the condensation of 2,3,4,6-tetra-0-benzyl- .alpha.-?-glucopyranosyl chloride --(II) with 1,3,4,6-tetra-O-benzyl-?-fructofuranose --(III).  Compound II is obtained from ?-glucose by way of 2,3,4,6-tetra-0-benzyl- .alpha.-?-glucopyranose; and ?-glucose is prepared from ?-arabinose by nitromethane synthesis. Compound III is obtained by oxidation,with Jones reagent,of 1,3,4,6-tetra-O-benzyl-?-mannitol which, in turn, is prepared from ?-mannose.  The condensation product of II and III is catalytically debenzylated to produce ?-sucrose.
Patent CA-1049053-A (CA)
Inventor: BLEAU CHARLES D
IPC: B65G47/22
Filed: 1977-05-03
Granted: 1979-02-20
Abstract: DOCUMENT FEED APPARATUS                 Abstract of the Disclosure A document, which is fed by a single belt, is prevented from wrap-ping around the belt as it exits from the belt by a plurality of rollers, which are rotated in the same direction as the belt but with a greater peripheral speed.  Each of the rollers, which are axially spaced from each other, cooperates with a resiliently biased element to form a nip along the path of the document beyond the exit end of the belt.  At their point of engagement with the belt, the peripheral direction of the rollers is opposite to that of the belt to prevent the paper from moving with the belt past this point.  Fingers are disposed between the rollers to prevent the document from wrapping around the rollers as it is fed by the rollers.  Resiliently biased rollers engage spaced portions of the single belt across its width to provide a driving force from the belt to the document while insuring that the leading edge of the document stops at gate fingers, which have the resiliently biased rollers therebetween and determine the position at which the document is held for reproduction or copying purposes in a photocopy machine prior to being advanced from the copying position by the belt.
Patent CA-1087592-A (CA)
Inventor: BURK EMMETT H JR
IPC: B01J21/20
Filed: 1977-05-27
Granted: 1980-10-14
Abstract: ABSTRACT OF THE DISCLOSURE        A process for the removal of metal poisons such as nickel, iron and/or vanadium from a hydrocarbon conversion catalyst which includes the steps of contacting the catalyst with both a reductive wash and a subsequent oxidative wash to remove at least a portion of the metal poisons from the catalyst.  A preferred oxidative wash medium comprises an aqueous solution of hydrogen peroxide.  The vanadium and nickel metals nay be recovered from the resultant used wash solutions for possible metallurgical use.
Patent CA-1090583-A (CA)
Inventor: DIETZ GEORGE JR
IPC: C22B11/08
Filed: 1977-07-21
Granted: 1980-12-02
Abstract: ABSTRACT       Precious metals such as gold and silver are recovered from aqueous cyanide solutions thereof by a stepwise process. The pH of the solution is, if necessary, initially adjusted to about 13 and thereafter is adjusted and maintained at 10 or above throughout the process.  A "starter" carbonyl compound (e. g., formaldehyde or dextrose) which reacts with free cyanide ions is dissolved in the solution.  Following this, an "accelerator" (e. g., hydrogen peroxide or a persulfate) is added and the solution is heated to aid in conversion of free cyanide ions to other chemical species.  Finally, a "clarifier" (e. g., hydrazine or a hydrosulfite) is added and the elevated temperature is maintained for at least a brief period after the addition. The solution is then cooled and the elemental precious metal particles formed are allowed to settle and are separated from the supernatant solution.
Patent CA-1086375-A (CA)
Inventor: CRONIN JOHN C
IPC: H02H3/02
Filed: 1977-09-14
Granted: 1980-09-23
Abstract: HIGH SPEED FAULT DIVERTER SWITCH     FOR GAS-INSULATED SYSTEMS            ABSTRACT OF THE DISCLOSURE        A high speed fault diverter switch is connected near the input side of a gas-insulated substation.  The switch is normally open and is used in response to arcing anywhere within the substation to connect the gas-insulated high-voltage conductor to ground for each phase of the system at high speed to divert the fault current to ground.