baber/WOPTO huggingface dataset:
Patent CA-1094790-A (CA)
Inventor: JACOBSSON KURT A G
IPC: D04B15/48
Filed: 1974-03-11
Granted: 1981-02-03
Abstract: ABSTRACT OF THE DISCLOSURE             An intermediate thread supply apparatus for textile machinery of the type having a thread drum from which the thread is taken off over a rim.  The apparatus is provided with take-off thread guide having the shape of a hook and disposed at the periph-ery of the rim, said hook being open in the direction of rotation of the thread drum.  The thread guide can be pivoted into operative position when positive supply of thread is required.  Alternatively, the hook can be turned out of its operative position to provide for intermittent feed wherein the thread is taken off over the rim without passing through the hook.
Patent CA-1038525-A (CA)
Inventor: PETERSEN EGON N
IPC: C08L33/02
Filed: 1974-03-28
Granted: 1978-09-12
Abstract: ABSTRACT OF THE DISCLOSURE: 1,2-, 1,3-  and 1,4-bis-(bromoethyl)-tetrachlorobenzenes of the following formula:                      wherein the six substituents X represent together at all times four chlorine atoms and two CH2Br radicals, are prepared by reacting 1,2-, 1,3- or 1,4-bis-(chloromethyl)-tetrachlorobenzene with a bromide of an element of group 1 to group 3 inclusive of the periodic system, in a solvent and at a temperature of from 20 and 180°C.  Use is made of solvents which dissolve the bis-(chloromethyl)-tetrachlorobenzene, but in which the resulting bis-(bromomethyl)-tetrachlorobenzene is substantially insoluble, such solvents  being alcohols, ethers and ketones.  These bis-(bromomethyl)-tetrachlorobenzenes have been found to possess very good fireproofing properties and are advatageously employed with polycondensation  and polyaddition products, and polymerization products of unsaturated aliphatic monomers or co-polymess of at least one aliphatic monomer, to form fireproof polymeric compositions.
Patent CA-1050468-A (CA)
Inventor: LYBARGER HUGH M
IPC: C07C7/152
Filed: 1974-08-13
Granted: 1979-03-13
Abstract: INVENTOR:  Hugh M Lybarger INVENTION:  RECOVERY OF ISOPRENE              Abstract of the Disclosure There is disclosed a method of recovery of isoprene from a hydrocarbon stream consisting of predomin-ately C-5 hydrocarbons and containing isoprene, n-pentane and other 5 carbon atom hydrocarbons which comprises subjecting said hydrocarbon stream to two successive high efficiency distillations, the first distillation being conducted in a manner as to remove as an overhead fraction, hydrocarbon components of said stream which are more volatile than the azeotrope of isoprene/n-pentane and as a bottom fraction the other hydrocarbons in said stream, subjecting the bottom fraction from the first distillation to the second distillation, the second distillation being conducted in a manner as to remove the azeotrope of isoprene/n-pentane as an overhead fraction and as a bottom fraction the other hydrocarbons which are less volatile than the azeotrope of isoprene/n-pentane, and recovering the isoprene/n-pentane azeotrope.
Patent CA-1072573-A (CA)
Inventor: JOCH WILHELM
IPC: C07F7/04
Filed: 1974-11-01
Granted: 1980-02-26
Abstract: ABSTRACT OF THE DISCLOSURE     The present invention is concerned with a process for the preparation of orthosilicic acid tetra-alkoxyalkyl esters.          The process of the invention is characterized in that it comprises reacting silicon, iron silicide or ferrosilicon, or a mixture of two or more thereof, in particulate form with an ether alcohol in the presence of the corresponding ether alcoholate of an alkali metal, there being present during the reaction at least 70% by weight of the orthosilicic acid tetra-alkoxyalkyl ester, based on the total weight of liquid present during the reaction, and the reaction being carried out at a temperature of from 125 to 250°C. The orthosilicic acid tetra-alkoxyalkyl esters obtained by the process according to the invention can be used as binders for zinc dust paints.  They may also be used for binding foundry grade sands.
Patent CA-1036326-A (CA)
Inventor: WELCH RUSSELL M
IPC: F16B12/22
Filed: 1975-01-20
Granted: 1978-08-15
Abstract: FASTENER CLIP                   ABSTRACT OF THE DISCLOSURE         Two structural members are secured together by a fastener and stud having an enlarged head.  The fastener is a resilient one-piece metal clip having one or more portions secured to one of the structural members and a raised portion.          The raised portion has a slot formed therein with an access opening to receive the enlarged stud head.  The sides of the slot taper inwardly from the access opening to a point of minimum spacing at which point a step is formed in each side and the sides extend essentially parallel to the closed end of the slot at an increased spacing.  The stud has a shaft diameter corresponding to the increased spacing portion of the slot and is locked to the fastener by positioning the head through the access opening and moving the stud to the closed end springing the tapered portions until clearing the step whereby the taper portions spring back to their normal positions and the shaft is locked behind the steps against unintentional removal.
Patent CA-1044157-A (CA)
Inventor: MILLER FREDERICK W III
IPC: B01D/
Filed: 1975-05-15
Granted: 1978-12-12
Abstract: ABSTRACT OF THE DISCLOSURE           An extracorporeal, disposable, dialyzer for use in a variety of artificial kidney or other mass transfer systems, which includes a sheet of support material rolled up in a spiral with a flattened tube of membrane material, the sheet of support material includes a large number of embossments protruding from each side thereof and arranged in similar geometrical patterns which are angularly off-set with respect to each other so that the summits of the embossments on one side are spaced apart differently along any given directional line than the directly opposed summits of the embosssments on the other side, thus when the sheet of support material is rolled up in a spiral the summits of the embossments avoid interdigitation which would substantially occlude the blood passage formed by the tube of membrane material.
Patent CA-1048523-A (CA)
Title: Recovery of solvents employed in the production of isocyanates from esters of carbamic acids (urethanes)
Inventor: ROSENTHAL RUDOLPH
IPC: C07C265/00
Filed: 1975-05-16
Granted: 1979-02-13
Abstract: RECOVERY OF SOLVENTS EMPLOYED IN THE PRODUCTION OF ISOCYANATES FROM ESTERS      OF CARBAMiC ACIDS (URETHANES) ABSTRACT OF THE DISCLOSURE         In the method for the production of isocyanates from esters of carbamic acids (urethanes) by thermally decomposing said ester while said ester is dissolved in a suitable inert reaction medium solvent to produce the isocyanate and alcohol and removing the isocyanate and alcohol and a carrier agent and separately recovering the isocyanate, alcohol and carrier, the improvement which comprises recovering said reaction medium solvent together with any isocyanate and urethane values con-tained therein by stripping said solvent and the isocyanate/urethane values from the reactor bottoms away from any heavy by-product residues present in the reactor bottoms effluent.  Inert stripping solvents or inert gases or mixtures of gas and solvent are used as the stripping medium and include the solvents, gases or mixtures thereof employed as carrier agents and are preferably the same recovered carrier agents employed during the thermal de-composition reaction.   1.
Patent CA-1052805-A (CA)
Inventor: REEDY JAMES D
IPC: C08K5/05
Filed: 1975-06-10
Granted: 1979-04-17
Abstract: Abstract of the Disclosure Certain liquid alkoxysiloxanes suitable as hydraulic fluids and having the formula RO(Me2SiO)nR wherein Me is a methyl group, n is a value from 5 to 200 and R is a mixture of monovalent hydrocarbon groups having at least 10 carbon atoms per average group are disclosed.   1.
Patent CA-1062078-A (CA)
Title: Blasting caps initiatable by thermal detonation energy of an explosive gas mixture and blasting system
Inventor: ZEBREE DAVID T
IPC: F42B3/11
Filed: 1975-08-11
Granted: 1979-09-11
Abstract: BLASTING CAPS INITIATABLE BY THERMAL DETONATION ENERGY OF AN EXPLOSIVE GAS MIXTURE AND BLASTING SYSTEM                 Abstract of the Disclosure A nonelectric blasting cap initiated by thermal detonation energy from an explosive gas mixture, in which the required open space for charging and detonating the explosive gas mixture is contained, together with the conduit means, in an end closure member; and the open space is shaped to provide a shell to end closure crimp without impairing flow of explosive gas through the conduits.      A blasting system including a plurality of the above blast-ing caps is also provided.
Patent CA-1046587-A (CA)
Inventor: NARIHARA KATSUHIKO
IPC: H05B6/06
Filed: 1975-08-25
Granted: 1979-01-16
Abstract: Abstract of the Disclosure A method for heating steel pipe by induction heating coils, while the pipe is travelling through said coils in the axial direction, which comprises: a)  calculating the limit surface absorption electric power density PO(W/cm2) by the following formula:                     wherein T=heating temperature (°C) and d=wall thickness (mm);          b)  attaching a power supply to the induction heating coils c)  setting said power supply so that surface absorption electric power density (P) of the steel pipe becomes greater than said limit surface absorption electric power density (PO)' and d)  heating the steel pipe as it is travelling through said in-duction heating coils heated by said power supply, at such speed as to permit the steel pipe to be heated to the desired temperature, thereby causing the difference in temperature between the ends and the central portion of the steel pipe in the axial direction to be no greater than about 20°C.
Patent CA-1072071-A (CA)
Inventor: BRADEN MICHAEL
IPC: C08L81/04
Filed: 1976-03-09
Granted: 1980-02-19
Abstract: A B S T R A C T          A catalyst composition, suitable for the ambient temperature curing of polysulphide rubbers, comprises zinc carbonate, an organic sulphur-containing accelerator containing a disulphide linkage (e.g. a thiazole, thiuram or dithiocarbamate), and a sulphur/amine complex. The composition preferably contains from 15 to 90% by weight, based on the weight of zinc carbonate, of the organic accelerator and the sulphur/amine complex is preferably a sulphur/dialkylamine complex, the weight ratio of sulphur to amine in the sulphur/amine complex preferably being from 20:1 to 5:1 and the sulphur/amine complex preferably being present in the composition in an amount of from 0.2 to 8% by weight, based on the weight of zinc carbonate.            The invention also provides an ambient temperature curable composition comprising a polysulphide rubber together with a curing composition as defined above, preferably containing from 15 to 75% by weight of zinc carbonate, based on the weight of polysulphide rubber; and containing a total of from 50 to 120% by weight, based on the weight of polysulphide rubber, of zinc carbonate, organic accelerator and sulphur/amine complex.
Patent CA-1077849-A (CA)
Title: Betaine with anionic and nonionic surfactant in non-irritating detergent
Inventor: VERDICCHIO ROBERT J
IPC: C11D3/37
Filed: 1976-03-24
Granted: 1980-05-20
Abstract: ABSTRACT OF THE DISCLOSURE           High lathering detergent compositions having excellent foam stability and low ocular irritation com-prise a member selected from the group consisting of surfactant alkylbetaines, alkylamidobetaines, alkylsulfobetaines, and alkylamidosulfobetaines; an anionic surfactant; and a water-soluble, polyoxy-ethylene derivative of a hydrophobic base as the nonionic surfactant in a weight ratio of about 1:1:3, respectively.
Patent CA-1063994-A (CA)
Title: Visual approach and landing system for aircraft with supplementary indicating and warning devices
Inventor: COLLINS WILLIAM O
IPC: B64F1/18
Filed: 1976-05-26
Granted: 1979-10-09
Abstract: ABSTRACT OF THE DISCLOSURE        A visual approach and landing system for aircraft including a basic slope indicator support on or adjacent the ground is predetermined relation to a runway for visually indicating to a pilot the correct path which he should follow when approaching the runway together with supplementary warning devices to provide the pilot with a definite visual warning of a low approach and other indicating and warning devices also provided in the form of signs or symbols indicating to the pilot the direction he should look and fly ahead and upward from the approach or descent path defined by a slope indicator.  The system includes three elongated bars, two of the bars mounted in longitudinal alignment with each other and the third bar mounted in parallel spaced relation to the two longitudinally aligned bars and centrally between the two bars.  The two bars are longitudinally spaced from each other ? distance slightly greater than the length of the third bar.  The bars have visual means mounted on them for direct viewing of the bars themselves as closely space solid line segments in apparent longitudinal alignment with each other while approaching them at a predetermined angle perpendicular to the bars, and the warning devices associated with the bars are apparent when approaching the bars at an angle substan-stantially less than the predetermined angle.
Patent CA-1059123-A (CA)
Inventor: MARSILI LEONARDO
IPC: C07D498/20
Filed: 1976-06-07
Granted: 1979-07-24
Abstract: ABSTRACT OF THE DISCLOSURE:          Oxidized rifamycin compounds having high antibiotic activity as obtained by reacting 3-amino-4-deoxo-4-imino-3-rifamycin S or homologous thereof with a ketone.
Patent CA-1057917-A (CA)
Inventor: LARSEN GREGORY J
IPC: E01H1/08
Filed: 1976-06-07
Granted: 1979-07-10
Abstract: Abstract of the Disclosure The hood for an air recirculation type of street sweeper forms a single, unidirectional air flow duct from the air inlet line to the air return.  The top wall of the hood is formed to provide an air stream deflector that slants downwardly in the direction of the air return line and accelerates the air stream to insure that all debris is entrained in the air stream as it leaves the hood.                             -1a-
Patent CA-1058438-A (CA)
Inventor: OLINK JAN
IPC: F24J2/50
Filed: 1976-07-06
Granted: 1979-07-17
Abstract: Abstract of the Disclosure A glazing unit comprises, in combination, a soda-lime glass substrate having a composition such that its total energy transmittance for solar radiation is greater than that of a similarly dimensioned substrate of ordinary soda-lime glass which contains ferrous oxide.  The substrate has a composition which contains iron oxide with substantially all of said iron oxide being ferric oxide, and a metal oxide coating of a composi-tion which transmits solar radiation and at least partially reflects infrared radiation having wavelengths greater than 3µ at least partially covering at least one face of said substrate.
Patent CA-1066606-A (CA)
Title: Apparatus and process for splitting minerals using a frame cutter
Inventor: KALLENBACH RUDOLF
IPC: E21B7/14
Filed: 1976-07-16
Granted: 1979-11-20
Abstract: ABSTRACT     Process and device for thermochemically drilling and separating SiO2 containing minerals by using such chemical compounds as fluxes in the combustion, which from in the melt silicates of  low temperature melting range, primarily alkali metal silicates, the fluxes, mixed with catalysts and with metal powder serving as fuel, being passed through an oxygen lance or a core lance containing bundles of wires and ducts for passage of oxygen and flux at a high rate of speed, ignition being done semi-automa-tically or fully automatically.  The use of the process and device according to the invention result in an increas-ed effectiveness of the drilling and separation of the SiO2 containing minerals as compared to known thermochem-ical processes.
Patent CA-1078118-A (CA)
Inventor: BRAZINSKY IRVING
IPC: B29C55/06
Filed: 1976-08-30
Granted: 1980-05-27
Abstract: ABSTRACT OF THE DISCLOSURE   A process for the preparation of an open-celled microporous, poly-mer film.  The improved process comprises the heat relaxing of a microporous polymer film which is formed from a non-porous, crystalline, elastic polymer film which has been uniaxially cold stretched at a temperature in the range of between about -20°C. and a temperature 25°C. below the crystalline melt-ing temperature of the polymer film, followed by hot stretching, in the same direction, the cold-stretched film at a temperature in the range of between about 25°C. below the crystalline melting temperature of the poly-mer film and 5°C. below the crystalline melting temperature of the polymer film.  The heat relaxing step comprises exposing the film under tension to a temperature in the range of between about 40°C. below the crystalline melting temperature of the polymer film and 5°C. below the crystalline melting temperature of the polymer film, such that the maximum dimension in the direction of stretch, of the cold and hot stretched microporous film is reduced.  The film produced in accordance with the process of this invention has improved dimensional stability as compared to the currently produced microporous film.
Patent CA-1071176-A (CA)
Title: Gettering device
Inventor: VAN GILS WILHELMUS A
IPC: H01J29/94
Filed: 1976-09-23
Granted: 1980-02-05
Abstract: ABSTRACT:           The chemical resistance of a gettering de-vice comprising a mixture of barium-aluminium powder and nickel powder compressed in a metal holder is considerably increased by using nickel powder having a specific surface smaller than 0.15 m2 per gram and an average grain size smaller than 80 microns, while the barium aluminium powder has an average grain size smaller than 125 microns.  The said gettering device is extremely suitable for use in the manufacture of a colour display tube in which the gettering device is to be placed inside the envelope of the tube before certain parts of said envelope are sealed together at a high temperature.
Patent CA-1069201-A (CA)
Inventor: SHULTZ GILBERT F
IPC: G05D23/19
Filed: 1976-09-29
Granted: 1980-01-01
Abstract: PROCESS FLUID CIRCULATION AND TEMPERATURE           CONTROL SYSTEM            Abstract of the Disclosure A process liquid circulation and temperature control system including a pump for circulating water or other process liquid through a path including a heating unit, a cooling unit, and a process apparatus that is returned to the pump; the pump and the heating and cooling units are actuated in response to temperature/pressure variations sensed at the return from the process apparatus and at the delivery thereto.          One pressure control measures the differential pressure across the pump and inhibits system operation except when the differential exceeds a predetermined magnitude in a given direction; another pressure control inhibits operation if the return pressure falls below a given threshold; a circuit that determines   .DELTA.P/T prevents boiling of the process fluid.          For both temperature and pressure controls, the delivery and return sensors are calibrated to match each other on system start-up.
Patent CA-1060625-A (CA)
Inventor: CLORIUS MOGENS O
IPC: E04B1/76
Filed: 1976-10-18
Granted: 1979-08-21
Abstract: ABSTRACT OF THE DISCLOSURE Building element built up of three or more layers with alternating, respectively vertical posts and horizontal laths, preferably with the delimited spaces filled with insulation material.
Patent CA-1063453-A (CA)
Inventor: AUILER JAMES E
IPC: F02D41/02
Filed: 1977-02-21
Granted: 1979-10-02
Abstract: VAPORIZED LIQUID FUEL DELIVERY AND METERING SYSTEM                 ABSTRACT OF THE DISCLOSURE           A fuel delivery system for an internal combustion engine is disclosed.  The system includes primary and aux-iliary heating means for vaporizing a liquid fuel, vapor storage means, carburetor means including metering venturi means for mixing the vaporized liquid fuel  with atmospheric air to provide a combustible air/fuel mixture and means for controlling the delivery of vaporized fuel to the carburetor means.  The carburetor means may be connected to a conven-tional internal combustion engine intake manifold for eventual delivery of the combustible mixture to the combus-tion chambers of the engine.  The vaporized liquid fuel delivery means of the system includes a variable orifice vapor delivery nozzle for modulating the vaporized fuel content of the air/fuel ratio of the combustion mixture.
Patent CA-1097547-A (CA)
Inventor: SCRIVENS GEORGE W
IPC: A61B19/08
Filed: 1977-03-01
Granted: 1981-03-17
Abstract: CARDIOVASCULAR DRAPE                           ABSTRACT              A surgical drape particularly suitable for cardiovascular surgery comprising a main sheet, preferably T-shaped in configuration, of flexible drapable material and at least two fenestrations covered by closure members which carry a pressure sensitive adhesive on their lower surfaces. The drape also includes improved means for securing thin, flexible elements such as suction tubing and electrical wires to the upper surface of the drape.  The drape is folded longitudinally and transversely into a compact unit which may be packaged and thereafter sterilized in its packaged condition. The  folded drape may be easily and quickly unfolded and applied to the patient in an aseptic manner.
Patent CA-1078506-A (CA)
Inventor: HAFERL PETER E
IPC: H04N3/16
Filed: 1977-03-09
Granted: 1980-05-27
Abstract: SIGNAL PROCESSOR FOR SWITCHED  VERTICAL DEFLECTION SYSTEM                 Abstract of the Disclosure A modulator stage of a switched vertical deflection amplifier produces pulse width modulated gating signals obtained by modulating horizontal rate pulses including a ramp portion at a vertical deflection rate.  The gating signals control switches coupled between a source of horizontal retrace pulses and a capacitor for charging the capacitor with decreasing and increasing amounts of energy during respective first and second intervals during each vertical trace interval for producing a sawtooth current in a vertical deflection winding coupled to the capacitor.  A generator adds a nonlinear component to the ramp portions of the horizontal rate pulses for altering the gain of the amplifier during the vertical trace interval for producing a scanning current with a desired degree of linearity.
Patent CA-1081539-A (CA)
Title: Apparatus for transferring metered quantities of material from one location to another
Inventor: KRUEGER WALLACE F
IPC: F04B19/02
Filed: 1977-03-16
Granted: 1980-07-15
Abstract: ABSTRACT OF THE DISCLOSURE           Apparatus is provided for moving controlled quantities of a material from one location to another and increasing the pressure thereof.  The apparatus includes at least two cylinders having rams reciprocable therein.  The rams are driven by a rock-er arm which is pivotally connected to outer ends of both rams and is pivotally supported at a position therebetween.  The arm is driven through a fluid-operated cylinder having a piston rod con-nected to one end of the arm, thereby reciprocating the rams in opposite directions.  The ram cylinders have inlets connected to a source of the material under low pressure with a ball check valve located between the source and each inlet.  Outlets of these cylinders are connected to a common outlet with a ball check valve also located between the common outlet and each cylinder outlet.  The valves are arranged so that the inlet check valves and the outlet check valves operate in opposing relationship to provide positive opening and closing action and a precise flow of material.  The cylinders and rams are also designed to require minimum maintenance in the nature of cleaning and repair.