baber/WOPTO huggingface dataset:
Patent BE-763196-A (BE)
Title: Industrial etherification of starch
Inventor: HJERMSTAD E T
IPC: C08B31/12
Filed: 1971-02-19
Abstract: Large scale prodn. of starch ethers in a reaction reservoir, is effected by reacting an aq. suspension of granular starch, with a monofunctional etherifying agent in the presence of an alkali catalyst (pref. NaOH) whilst maintaining the filterability of the starch. An aq. suspension of starch is pumped through a conduit containing devices to give a turbulent flow, in a particular transversal section of the current. Into the turbulent flow is injected an alkaline etherification catalyst, to give a uniform mixture of starch and catalyst. This mixture is then passed to the reservoir where the etherifn. pref. using ethylene oxide, is carried out.
Patent CA-1036409-A (CA)
Inventor: O'MALLEY JAMES J
IPC: C08L7/00
Filed: 1974-09-11
Granted: 1978-08-15
Abstract: ABSTRACT OF THE INVENTION         Electrostatographic toner materials having exception-ally desirable mechanical and thermal properties may be pre-pared by forming a finely divided mixture comprising a coloring material and a polymeric material which is block or graft copolymer consisting of at least one crystalline or crystalliz-able polymeric segment chemically linked to at least one amor-phous polymeric segment, said crystalline or crystallizable segment individually having a glass transition temperature of less than about 20°C and a melting point of at least about 45°C, and said amorphous segment individually having a glass transi-tion temperature less than the melting point of said crystalline or crystallizable segment.  Toner materials prepared according to the present invention exhibit thermal and mechanical prop-erties which render them extremely useful in xerographic pro-cesses, particularly high speed processes.
Patent CA-1045600-A (CA)
Inventor: BAXTER PAUL G
IPC: G03B27/54
Filed: 1974-12-09
Granted: 1979-01-02
Abstract: ABSTRACT OF THE DISCLOSURE         An illuminator comprising an elongated envelope having a narrow window extending at least substantially the length of the envelope arranged to reflect light out of said window, and light source means arranged to direct illumination into said envelope from both ends.
Patent CA-1045256-A (CA)
Inventor: GAMBOPOULOS THEODOR
IPC: B03D1/001
Filed: 1974-12-13
Granted: 1978-12-26
Abstract: ABSTRACT OF THE DISCLOSURE The present invention provides  a reverse flotation method for the removal of contaminants from a magnesite ore which has as a main component magnesium carbonate and as contaminants silica and silicates of iron, aluminum and calcium which method comprises grinding the previously crushed ore to a desired grain size; classifying the pulp so obtained, conditioning said classified pulp in a conditioner,when required adjusting the pH of said pulp to be in the range 6.8 to 7.2 and subjecting said pulp to a flotation by the addition of a selective mixture of cationic collectors in combination with impure kerosene to the pulp during or after the conditioning or both; removing the contaminants and the froth and removing the ore concentrate so obtained in a settled underflow product.  Suitably the mixture of cationic collectors is a mixture of a quaternary ammonium compounds and primary amines.
Patent CA-1070496-A (CA)
Inventor: FERRO BERKELEY M
IPC: C08L61/20
Filed: 1975-01-24
Granted: 1980-01-29
Abstract: ABSTRACT OF THE DISCLOSURE     Compositions and methods for rendering a part or the whole of a surface phosphorescent.  The compositions contain a phosphorescence activator and a soluble resin precondensate.  The compositions are applied to a surface and the precondensate then undergoes further condensation in  situ to form an insoluble resin matrix in which the phosphoresence activator molecules are trapped sufficiently far apart from one another for phosphorescence to occur.  The compositions may be in the form of printing inks and unlike prior art phosphorescent inks have the advantage of being non-particulate.  Alternatively, the compositions may be in the form of paper-coating mixes.  Paper carrying phosphorescent printed matter or a phosphorescent coating may be used for postage stamps.
Patent CA-1042269-A (CA)
Title: Method and apparatus for transporting fluid substances, e.g. water, slurry and similar other materials by utilization of potential energy of liquid columns
Inventor: PUCHER JANOS
IPC: F04B43/06
Filed: 1975-04-08
Granted: 1978-11-14
Abstract: A B S T R A C T The present invention consists of a procedure for transport by consecutive suction and forcing strokes of e.g. water, slurry and other similar fluids by quanta of the fluid substance, by means of the potential energy of the primary liquid column, by incorporating a system of vessels sealed off from the atmosphere between the primary liquid column and the secondary fluid substance basis.  The equipment for implementation of the procedure is also covered by the invention.
Patent CA-1063325-A (CA)
Title: Preparing complex shapes of ultra-high density silicon nitride and silicon carbide by a hot isostatic gas powder vehicle
Inventor: BRATTON RAYMOND J
IPC: B28B3/00
Filed: 1975-04-17
Granted: 1979-10-02
Abstract: PREPARING COMPLEX SHAPES OF ULTRA-HIGH DENSITY  SILICON NITRIDE AND SILICON CARBIDE BY A HOT       ISOSTATIC GAS POWDER VEHICLE     ABSTRACT OF THE DISCLOSURE         A method is presented for the production of complex shapes of ultra-high density silicon nitride and silicon carbide materials.  This method consists of embedding low density complex pre-formed objects in an inert powder vehicle.          The inert powder vehicle is then placed in a deformable container.  The deformable container is sealed and evacuated, whereupon the container is isostatically compressed in a pressure vessel by a hot gas.  The pressure exerted in this manner is uniform on all surfaces of the complex pre-formed objects due the compression of the container and transmission therethrough of the pressure by the powder vehicle.  This technique is especially useful in the production of oxidation resistant high temperature strength gas turbine blades.
Patent CA-1041138-A (CA)
Inventor: ELONEN KUNTO
IPC: B60P7/12
Filed: 1975-06-06
Granted: 1978-10-24
Abstract: ABSTRACT OF THE DISCLOSURE     The present invention provides an improved load retaining member for use with vehicles, the retaining member being rotatably journalled in a bearing located proximate a side of the vehicle chassis, the bearing being tilted out-wardly with respect to a perpendicular line to the plane of the chassis, and the member having a generally crank shape such that the retaining member will assume a maximum spaced apart position with respect to the chassis of the vehicle under the influence of gravity.  The retaining member over-comes problems associated with prior art rigid retaining members which were subject to breakage when struck by objects - the present member is able to rotate inwardly.
Patent CA-1057024-A (CA)
Inventor: COURTENAY JOHN H
IPC: B22D11/10
Filed: 1975-07-10
Granted: 1979-06-26
Abstract: A B S T R A C T      Vessels for containing molten metal, e.g. tundishes, are formed of a metal case lined with refractory slabs.  The slabs are individually replaceable for repair of the lining and are held in place by fixing means passing through the wall or base of the metal case.
Patent CA-1039594-A (CA)
Inventor: MEISERT ERNST
IPC: C08J9/04
Filed: 1975-07-29
Granted: 1978-10-03
Abstract: COATING THE BACK OF FLOOR COVERINGS WITH POLYURETHANES        Abstract of the Disclosure The instant invention relates to a process for coating the back of textile floor coverings, e.g. carpets, with polyurethane foams wherein it is possible to obtain particularly firm fixing of the nap and improved anchorage of the textile filaments.  The process broadly comprises:   a)  applying to the back of a textile floor covering a first coat consisting essentially of a reaction mixture of a polyol and a large excess of polyisocyanate, b)  before said first coat has been hardened, applying thereto a reactive foamable mixture of substantially equivalent quan-tities of polyol and polyisocyanate, and c)  thereafter hardening the resultant product.
Patent CA-1050173-A (CA)
Title: Measurement of subsurface formation lithology, including composition and fluids, using capture gamma spectroscopy
Inventor: SCOTT HUBERT D
IPC: G01V5/10
Filed: 1975-10-29
Granted: 1979-03-06
Abstract: MEASUREMENT OF SUBSURFACE FORMATION   LITHOLOGY, INCLUDING COMPOSITION AND FLUIDS, USING CAPTURE GAMMA SPECTROSCOPY                  (D#73,561-FB) ABSTRACT OF THE DISCLOSURE         Gamma ray spectra of earth formations surrounding an open or cased well borehole are obtained by exciting sub-surface formation elements around the borehole with neutrons and detecting the gamma ray resulting from capture in the subsurface formation of thermalized neutrons from a capture gamma spectroscopy (C.G.S.) well log source.  The spectra of gamma rays so obtained are analyzed to form logs of the elements which contribute significantly to the spectra.          From these logs, quantitative measurements of the primary formation parameters of formation water salinity, water sat-uration, porosity, major matrix components and ratios of formation constituents of the earth formations are obtained.     I
Patent CA-1067183-A (CA)
Inventor: FLEAGLE JOSEPH E
IPC: B60T8/72
Filed: 1975-10-31
Granted: 1979-11-27
Abstract: WHEEL SLIP CONTROL SYSTEM FOR AUTOMOTIVE         VEHICLES AND THE LIKE                 Abstract of the Disclosure A control system for adjusting the pressure applied to fluid-controlled brake actuating mechanisms in response to predetermined variations in wheel speed and rate of change of wheel speed brought about by the application of fluid pressure to the wheel brake actuating mechanisms.          Signals proportional to the angular velocity and rate of change of angular velocity of a selected wheel are employed to control the sequence and duration of the energization and de-energization of the solenoid valves in a modulator valve assembly.  The incremental decrease in wheel velocity from the time said deceleration threshold is reached, at which time a gradual adjustment of brake line fluid pressure is effected, is monitored to determine when a continuously-variable reference increment of wheel speed .DELTA.v has been exceeded, at which time a sharp reduction in brake line fluid pressure is effected.  This continuously-variable reference increment  .DELTA.v is defined in each cycle by (1) the value of wheel velocity at the time said deceleration threshold is reached and (2) a variable reference signal which is related to both wheel speed and deceleration during periods of decelera-tion of the monitored wheel, and is related only to acceleration during periods of acceleration of the monitored wheel.
Patent CA-1040489-A (CA)
Inventor: CROOP EDWARD J
IPC: D21H23/50
Filed: 1975-11-04
Granted: 1978-10-17
Abstract: ABSTRACT OF THE DISCLOSURE A porous, electrical insulating adhesive sub-strate is made by (A) electrostatically coating a flexible sheet material with heat reactive adhesive resin particles, having an average particle size of between about 1 micron to 2,000 microns, the adhesive particles are applied in a predetermined pattern on the sheet covering from about 10 percent to 90 percent of the sheet material area, the area between the resin pattern not being coated; and then (B) heating the patterned coated sheet material between about 65°C to 250°C, forming a discontinuous 0.25 mil to 25 mil (0.006 mm to 0.635 mm) thick dry coating pattern of heat reactive adhesive particles bonded to the sheet material, said heat reactive adhesive coating covering from about 10 percent to 90 percent of the sheet material area; the pat-terned coated sheet may then be inserted as an oil permeable layer insulation between high voltage windings and low voltage windings and between layers of high and low voltage windings in a wound coil assembly, after which the assembly can be heated at a temperature and for a time effective to securely bond the winding layers together, and thus provide a porous, oil permeable, bonded transformer coil assembly.
Patent CA-1049121-A (CA)
Inventor: BRADLEY DONALD A
IPC: H04Q9/02
Filed: 1975-11-18
Granted: 1979-02-20
Abstract: ABSTRACT OF THE DISCLOSURE An addressable signalling apparatus wherein a shift register may be sequentially advanced through units of address by inputs to an OR gate. Such inputs may come from programmable  connectors connected to selected input terminals defining a unique address or from one designated connector which is connected as an input to each of said OR gates defining an address unit substitute.  The OR gates are connected in turn to a shift register which, when it sequentially shifts through programmed units of address, activates an output means.  Once the output is enabled, a multiplicity of output messages may be transmitted through the apparatus. The apparatus includes a logic circuit for resetting the shift means in the event an input not cor-responding either to the programmed units of address or the common designated substitute address unit is received.
Patent CA-1055137-A (CA)
Inventor: WAIWOOD WILLIAM P
IPC: G01F23/22
Filed: 1976-01-29
Granted: 1979-05-22
Abstract: THERMAL LIQUID LEVEL DETECTOR            ABSTRACT OF THE DISCLOSURE      A pulsed thermal liquid level detector system is disclosed. The system includes a probe having a thermistor and a resistor disposed therein.  The thermistor is thermally coupled to the resistor and is thermally coupled to a predetermined external surface of the probe by way of a material of low thermal resistance and capacity.  The resistor is electrically coupled to a source of pulses which act to dissipate energy in the resistor thereby to heat the thermistor in accordance with the level of the pulses.  The resistance of the thermistor varies in accordance with the temperature excursions induced by the pulses and within a range determined by the thermal capacity of the thermistor.  The effective thermal capacity of the thermistor increases when the predetermined external surface is thermally coupled to a liquid which therefore reduces the resistance excursions of the thermistor.  The resistance of the thermistor is monitored by an external circuit to provide an indication of a liquid level transition when the resistance excursions of the thermistor are greater or less than a predetermined value.
Patent CA-1068291-A (CA)
Inventor: NAKAJIMA TADASHI
IPC: C07F9/10
Filed: 1976-01-29
Granted: 1979-12-18
Abstract: PROCESS FOR PREPARING 1,2-DIACYL-Abstract A process is described for preparing a 1,2-diacyl-3-glycerylphosphorylcholine of the formula:       wherein R and R' are the same or different residues of a saturated or unsaturated fatty acid.  According to the process a glycerylphosphorylcholine or monoacyl derivative thereof or the salt thereof is acylated with 1-acylimidazole or 4-acyl-3-phenyl-1,2,4-oxadiazol-5-one in the presence of an alkali salt of a nitorgen-containing 5-membered heterocyclic compound or sodium oxide as a catalyst.  The product is well known as "lecithin" and is widely used in the medical and pharmaceutical fields.
Patent CA-1062730-A (CA)
Inventor: ATKINSON JOHN H
IPC: C07C43/263
Filed: 1976-02-05
Granted: 1979-09-18
Abstract: ABSTRACT   3-hydroxthyldiphenylether, an insecticide intermediate is produced by:          (a) condensing phenol with meta-cresol to yield 3-methyldiphenyl-lether, (b) oxidising the 3-methyldiphenylether to 3-carboxydiphenylether, (c) esterifying the 3-carboxydiphenylether and (d) reducing the ester.
Patent CA-1082687-A (CA)
Title: 3-DEOXY-1.alpha.-HYDROXY- AND 3-DEOXY-1.alpha.,25- DIHYDROXYCHOLECALCIFEROL AND PROCESSES FOR THE PREPARATION THEREOF
Inventor: OKAMURA WILLIAM H
IPC: C07J11/00
Filed: 1976-04-09
Granted: 1980-07-29
Abstract: ABSTRACT OF THE DISCLOSURE      Processes for the preparation of 3-deoxy-1.alpha.-hydroxycholecal-ciferol and 3-deoxy-1.alpha.,25-dihydroxycholecalciferol, novel analogs of cholecalciferol possessing potent intestinal calcium transport stimulatory activity wlthout significant concomitant bone calcium mobilizing activi.ty, are disclosed.
Patent CA-1072443-A (CA)
Inventor: GATZI KARL
IPC: A01N43/40
Filed: 1976-05-12
Granted: 1980-02-26
Abstract: 2,6-DICHLOROPYRIDINE-4-CARBOXYLIC ACID HYDRAZIDE FOR COMBATTING MICROORGANISMS                      Abstract of the Disclosure Composition containing as active ingredient 2,6-dichloro-pyridine-4-carboxylic acid hydrazide of formula I     (I)   and the use of said active substance in combatting phytopathogenic microorganisms.
Patent CA-1069825-A (CA)
Inventor: SCRIABINE ALEXANDER
IPC: A61K31/215
Filed: 1976-08-05
Granted: 1980-01-15
Abstract: Abstract of the Disclosure The present invention relates to a novel and useful method of treatment and a composition which is used to treat  hypertension.   More  particularly, it relates to the administration of a composition containing (A) L-.alpha.-hydrazino-.alpha.-loweralkyl-3,4-dihydroxyphenyl propionic acid  or .alpha.-hydrazino-3,4-dihydroxyphenyl propionic acid or a pharmaceutically acceptable non-toxic salt of either in combination with (B) a specific class of esters of .alpha.-methyl-3,4-dihydroxyphenylalaninate or a salt thereof.
Patent CA-1081705-A (CA)
Inventor: MAJOIE BERNARD
IPC: C07C217/82
Filed: 1976-08-17
Granted: 1980-07-15
Abstract: A B S T R A C T         The invention provides novel phenoxyalkyl-carboxylic acids which are useful in therapy as metabolic regulators and in agriculture as selective herbicides.
Patent CA-1075053-A (CA)
Inventor: VAN DER WAL JOHANNES
IPC: G02B5/28
Filed: 1976-09-23
Granted: 1980-04-08
Abstract: ABSTRACT:      A multilayer reflector of which the last layer most remote from the substrate and having a high refractive index is vapour-deposited from a mixture containing a metal or oxide of an element from group 4? of the periodic table and a metal oxide from the group beryllium oxide, magnesium oxide and calcium oxide, is particularly resistant to hydrogen and ultraviolet light and is hence suitable for application in a laser which is to have a long life.
Patent CA-1080200-A (CA)
Inventor: SHORT JAMES N
IPC: C08F4/06
Filed: 1976-11-05
Granted: 1980-06-24
Abstract: Abstract of the Disclosure A method is provided for treating a hydrogel with a saturated, aliphatic alcohol selected from the group consisting of 1-pentanol, 2-pentanol, 3-methyl-1-butanol, 4-methyl-2-pentenol, 2,2-dimethyl-1-propanol and 1-hexanol to remove water thereby producing a dried product that retains a porous structure and is particularly suitable upon impregnation with a polymerization catalyst for use in promoting the production of ethylene polymers of melt index in excess of about 6.6.
Patent CA-1059244-A (CA)
Inventor: SOUTHARD ROBERT W
IPC: A47C27/14
Filed: 1976-11-09
Granted: 1979-07-24
Abstract: Abstract of the Disclosure This invention is directed to a mattress founda-tion comprising in cooperative combination a synthetic resinous foam cushioning element having an upper surface and a lower surface and a support member in contact with at least a portion of the lower surface.  The lower surface of the cushioning element has a plurality of corrugations in which the depth of the corrugation is from 40 to 95 percent of the thickness of the element.  The cushion element containing the corrugations on the lower surface provides an improved load deflection curve for the mattress foundation resulting in a desired level of firmness and reduced stress on the mattress.
Patent CA-1072546-A (CA)
Inventor: ARCAMONE FEDERICO
IPC: A61K31/7028
Filed: 1976-11-17
Granted: 1980-02-26
Abstract: G.358 ABSTRACT OF THE DISCLOSURE         Disclosed is a class of novel daunosaminyl anthra-cyclinones which are useful in treating Sarcoma 180 ascites.
Patent CA-1053564-A (CA)
Inventor: NOZAKI MICHIO B
IPC: F24H9/18
Filed: 1976-11-18
Granted: 1979-05-01
Abstract: ABSTRACT OF THE DISCLOSURE      An improved burner assembly for a water heater includes a gas supply tube with a uniquely constructed end portion for mounting the burner support bracket and burner. The end portion is partially flattened on its top surface and includes an attached gas discharge orifice. The burner supply bracket is attached directly to the end portion or is other-wise supported on the end portion so that gas passing through the discharge orifice appropriately mixes with air for combustion by the burner supported by the bracket.
Patent CA-1058462-A (CA)
Inventor: ROY JOSEPH J
IPC: F24D12/02
Filed: 1977-01-27
Granted: 1979-07-17
Abstract: ABSTRACT OF THE DISCLOSURE   An improvement is provided in a hot fluid conductor heating system having main boiler means with a given fluid capacity, main heating means hav-ing a given thermal capacity for heating the main boiler and thermostat means for actuating the main heating means.  The improvement involves the provision of auxiliary boiler means having a fluid capacity less than the aforesaid given  capacity.  The auxiliary boiler means is connected to the main boiler means.  Auxiliary heating means having a thermal capacity substantially less than the given thermal capacity are provided for heating the auxiliary boiler means.  High-low temperature control means are  connected to the auxiliary heating means and maintain a given temperature range of fluid conductor in the auxiliary and main boiler means.  In a particular embodiment, the auxili-ary boiler continuously maintains the temperature in both boilers within the range of 170 - 212°F.  As a result of the constantly maintained elevated water temperature in the main boiler, less time is required for the main boiler burner to heat up the system upon the demand of a room thermostat.
Patent CA-1093240-A (CA)
Inventor: HIGLEY WILLARD S
IPC: C08J5/18
Filed: 1977-03-02
Granted: 1981-01-06
Abstract: ABSTRACT OF THE DISCLOSURE   This membranes for homodialysis prepared from polycarbonate materials have superior transport properties for middle molecular weight molecules than do cellulosic membranes or previously available thicker polycarbonate membranes while having an ultrafiltration rate less than that obtainable with thicker polycarbonate membranes.  Thin polycarbonate membranes with a thickness of about 0.8 mil, an ultrafiltration rate of about 3.5 ml/hr/M2/mmHgn, a sodium chloride diffusive permeability of about 830 cm/min(x10-4) at 37°C and a vitamin B12 diffusive permeability of about 114 cm/min x 10-4 at 37°C have been produced.
Patent CA-1091144-A (CA)
Inventor: LEITH WILLIAM C
IPC: B01D47/12
Filed: 1977-03-03
Granted: 1980-12-09
Abstract: ABSTRACT           Gas scrubbing apparatus for removing particulates from a gas includes a vertical venturi through which the gas is passed.  A vessel surrounding the venturi contains scrubbing liquid such that gas leaving the venturi outlet impinges on the surface of the scrubbing liquid to form a concavity therein with resultant capture by the scrubbing liquid of some particulates in the gas.  After impingement on the scrubbing liquid, the gas is passed through a plurality of substantially vertical particulate removing assemblies, which include an eliminator having tortuous paths through which the gas passes and surfaces in the tortuous path upon which the gas impinges with resultant further removal of particulates from the gas.  The eliminator has a spray upstream of the tortuous paths for spraying liquid into the gas before its passage therethrough.  Also included is a wet bed having elements presenting a relatively large contact surface area over which the gas passes, the wet bed also having a spray for supplying liquid to the elements of large contact surface area.