baber/WOPTO huggingface dataset:
Patent CA-1065612-A (CA)
Title: Method of manufacturing a cap-sensitive aqueous gel suspension explosive
Inventor: MARHOFER EDWIN G
IPC: C06B47/14
Filed: 1976-03-09
Granted: 1979-11-06
Abstract: METHOD OF MANUFACTURING A CAP-SENSITIVE AND NON-SENSITIVE AQUEOUS GEL SUSPENSION EXPLOSIVE          ABSTRACT OF THE DISCLOSURE            Non-cap-sensitive aqueous gel explosives contain-ing no suspended solid fuels are made by combining water, hexamethylenetetramine, ammonium nitrate, sodium nitrate, ammonium perchlorate and nitric acid, along with sufficient polysaccharide gum to thicken the mixture.  These explosives are rendered cap sensitive by mixing therewith paint grade aluminum powder or other conventional sensitizing agents.        According to a preferred procedure, a cap sensitive aqueous gel explosive is made by a procedure in which nitric acid and aqueous hexamethylenetetramine solution are first combined under controlled conditions of temperature and pH and ammonium nitrate, sodium nitrate, ammonium perchlorate, thickening agent and aluminum powder are added in controlled amounts in a specified order.  The products possess cap sensitivity, even at temperatures as low as minus 23°C.
Patent CA-1039978-A (CA)
Inventor: ISHIKAWA SHOICHI
IPC: F16H55/08
Filed: 1976-04-05
Granted: 1978-10-10
Abstract: DUAL TOOTH CONTACT TYPE W-N GEAR            Abstract of the Disclosure W-N gears of novel basic rack tooth profile designed to have at all times two points of meshing contact located in the same reference plane, one on an addendum arc of first tooth and the other on the dedendum arc of a second tooth neighboring the first tooth on its side opposite to the addendum arc, so that at the respective points of contacts the addendum and dedendum arcs have lines of radius aligned with each other.  Such dual tooth contact enables much smoother and quieter gear operation, the points of contact proceeding in the direction of tooth trace.
Patent CA-1076251-A (CA)
Inventor: ONO MITSUAKI
IPC: G11B5/86
Filed: 1976-04-13
Granted: 1980-04-22
Abstract: MAGNETIC TAPE COPYING METHOD AND APPARATUS     ABSTRACT OF THE DISCLOSURE           In magnetic tape copying method and apparatus wherein a slave tape heated to a temperature near the Curie point and a master tape having a signal recorded thereon are put together with their magnetic surfaces in contact with each other and then cooled, an improvement of reheating the slave tape, after the completion of the transfer, under a smaller tension than that applied during the transfer at a temperature lower than the Curie point to prevent the occurence of skew distortion on a reproduced picture due to deformation with the passage of time of the slave tape.
Patent CA-1052060-A (CA)
Inventor: HOWARD PETER B
IPC: C09C1/36
Filed: 1976-06-25
Granted: 1979-04-10
Abstract: Abstract of the Disclosure "TREATMENT OF PIGMENT"       A process for the treatment of titanium dioxide pigment which involves adding to a pigment slurry a compound of phosphorus of aluminium, of zirconium, of titanium and of silicon, adjusting the pH of the slurry to a value of from 3.5 to 4.5, followed by adding to the slurry a compound of phosphorus of an alkaline reacting compound of aluminium prior to the addition of mineral acid to adjust the pH of the slurry to a value of 6.5 to 8.
Patent CA-1101009-A (CA)
Inventor: SJOGREN KENT
IPC: A63B65/02
Filed: 1976-10-05
Granted: 1981-05-12
Abstract: ABSTRACT OF THE DISCLOSURE            A dart comprising an elongate body portion, a bore extending axially in said body portion, and a tip arranged for axial movement in said bore between first and second limit positions The tip is encircled by a spring arranged in the elongate body portion.  Flights are fitted to the end of the body remote from said tip and means may be provided for ejecting the flights of the dart upon axial movement of the tip to its first limit position.  Preferably the tip is able to move radially in the bore between preferred limits.  The advantage afforded by such a dart is that the number of rebounds occurring should the dart strike a wire of a dartboard are greatly reduced in comparison with a standard dart.
Patent CA-1107160-A (CA)
Inventor: HART JOHN A
IPC: A62D5/00
Filed: 1976-10-08
Granted: 1981-08-18
Abstract: ABSTRACT OF THE DISCLOSURE        A method is described of minimizing the adverse effects of sweat and sebum on a flexible porous material which is permeable to air and water vapor but resistant to passage therethrough of noxious chemicals in liquid or vapor form. The flexible porous material is, for instance, a laminated fabric material comprising an air- and water vapor-permeable open cell solid resin foam bonded to an air and water vapor-permeable fabric backing, within which foam is dispersed and bonded a particulate adsorbent material for the noxious chemicals, eg. activated carbon.  The aforesaid flexible porous material is protected from deterioration by exposure to sweat and sebum by treating it with a liquid organic polymeric water- and oil-repellent substance, preferably a fluorochemical, which is compatible with any substances used to disperse or bind the adsorbent material in the flexible porous material, and which is of a type which does not reduce to any significant extent the adsorptive capacity of the ad-sorbent, eg. activated carbon.
Patent CA-1083006-A (CA)
Inventor: SATTERWHITE WILLIAM A
IPC: B01D19/04
Filed: 1976-11-01
Granted: 1980-08-05
Abstract: DEFOAMER FOR HIGH STRENGTH ACID MEDIA     ABSTRACT OF THE DISCLOSURE       A defoamer for controlling the foam in high strength acid media and process for preparing same having a majority of a sulfonated oil and a minority of a long chain alcohol.
Patent CA-1067844-A (CA)
Inventor: MASUREKAR PRAKASH S
IPC: C12N9/04
Filed: 1976-12-03
Granted: 1979-12-11
Abstract: Abstract of the Disclosure An improved fermentation method comprises growing  a cholesterol oxidase-producing microorganism in a medium comprising a carbon source, such as glycerol, yeast extract, a nonionic surfactant, an auxiliary carbon source which is also an inducer of cholesterol oxidase, and trace salts.  Yields of cholesterol oxidase up to about 900 U. (international units) per liter have been obtained using the improved method of the present invention.
Patent CA-1060028-A (CA)
Inventor: ELIADES THEO I
IPC: C07D207/26
Filed: 1976-12-30
Granted: 1979-08-07
Abstract: A B S T R A C T        An oil dispersible rust inhibitor consisting of a chemical complex of a metal nitrite with a hetero-atomic aprotic polar organic solvent.  Preferred metal nitrites are the alkali, alkaline earth metals or nickel, zinc, or cadmium nitrites.  Preferred solvents are dimethylsulfoxide, dimethyl-formamide, dibutylformamide, n-methylpyrrolidone, dioxane, ethylcarbonate, tetrahydrofuran and their derivatives.  The complex is prepared by reacting a nitrite ion with a solution of a basically reacting metal salt in the selected solvent.          The excess metal salt is removed from the solution after completion of the reaction.  The complex is readily solubilized in oil through the use of common dispersants.
Patent CA-1059392-A (CA)
Inventor: NAKAJIMA MASAO
IPC: F02M3/09
Filed: 1977-01-27
Granted: 1979-07-31
Abstract: Abstract of the Disclosure Air drawn into a carburetor main fuel passage for adjustment of the air-fuel ratio of an engine air-fuel mixture is either stepwise or continuously prevented from being undesirably increased with increases in the engine load by either closing an additional passage for the air at an engine load above a predetermined value or continuously reducing the effective cross sectional area of a variable orifice in a passage or an additional passage for the air with increases in the engine load.
Patent CA-1098331-A (CA)
Inventor: FISCHER HANSPETER
IPC: A01N37/28
Filed: 1977-02-07
Granted: 1981-03-31
Abstract: Case 5-10325/+ Canada Method of protecting plants against damage by frost and composition for carrying out said method Abstract of the Disclosure The present invention provides a method and composition of protecting plants, such as fruit, vegetables etc. against damage by frost. The method consists in treating the said plants, before outbreak of frost, with a composition containing as protecting ingredient a sufficient amount of a hydroxamic acid derivative of formula or     wherein R1 is alkyl, cycloalkyl, alkenyl or phenyl, R2 represents hydrogen or lower alkyl, R3 is hydrogen, alkyl, alkyl- or aryl-carbonyl, alkylcarbamoyl or a cation, and R4 is the same as R2 or alkyl- and arylcarbonyl.
Patent CA-1075613-A (CA)
Title: Ear muffler device for a safety helmet
Inventor: BOTTGER ERIK
IPC: A42B3/00
Filed: 1977-02-28
Granted: 1980-04-15
Abstract: Abstract of the Disclosure Ear muffler device for a safety helmet wherein each ear muffler is mounted on an arm which can pivot transversely to the helmet, being adjustable from a noise-deadening position where the mufflers are against the ears, to a position swung out from the ears, the adjustment being accomplished by swinging a control ball that extends over the helmet.
Patent CA-1071321-A (CA)
Title: Source d'emission d'ondes acoustiques dans un milieu liquide
Inventor: CHOLET JACQUES
IPC: G01H17/00
Filed: 1977-03-21
Granted: 1980-02-05
Abstract: Dispositif d'émission d'ondes acoustiques dans un milieu liquide comporte deux ensembles adaptés à se déplacer l'un par rapport à l'autre entre une première position et une seconde position.  Ces deux ensembles comprennent chacun une pièce délimitant avec une membrane d'étanchéité en matière déformable une enceinte étanche.  Chacun des deux ensembles comporte une première paroi d'une pièce délimitant l'enceinte, dite paroi d'enceinte et une seconde paroi de contact adaptées respectivement à venir s'appliquer contre une première paroi d'enceinte et une seconde paroi de contact de l'autre ensemble.  Les premières parois d'enceinte et les secondes parois de contact sont alternativement en contact dans la première position et la seconde position. Il comporte également des moyens hydrauliques pour déplacer les deux ensembles de la première à la seconde position et des moyens électromagnétiques de blocage intermittents des ensembles dans l'une des deux positions.  Le dispositif est remarquable en ce que les secondes parois de contact sont les parois de deux éléments de contact solidaires respectivement des deux ensembles et constituent avec un bobinage d'excitation les moyens de blocage électromagnétiques.
Patent CA-1095168-A (CA)
Inventor: BRAUN ROLAND J
IPC: G11C19/08
Filed: 1977-04-29
Granted: 1981-02-03
Abstract: BUBBLE MEMORY PACKAGE ABSTRACT OF THE DISCLOSURE  Dual, slotted reflection plates for a bubble memory package use electrically and thermally conductive plates spaced just far enough apart to accept one or two levels of bubble memory devices between them.  Each plate has a plurality of slots therein, each matching the ap-propriate portions of the coil generating the magnetic field for the bubble memory package.
Patent CA-1124933-A (CA)
Title: Heat curable epoxy resin compositions  containing an aromatic onium salt and a  reducing agent
Inventor: CRIVELLO JAMES V
IPC: C08G8/08
Filed: 1977-05-05
Granted: 1982-06-01
Abstract: HEAT CURABLE EPOXY COMPOSITIONS AND                METHOD OF CURING SAME            ABSTRACT OF THE DISCLOSURE        Heat curable epoxy compositions are described based on the use of an aromatic onium salt initiator which can be used in combination with a reducing agent.  The heat curable compositions can be used in a variety of applications, such as coating compounds, adhesives, potting resins, etc.
Patent CA-1089376-A (CA)
Inventor: KIHLSTEDT PER G
IPC: B03C3/30
Filed: 1977-05-25
Granted: 1980-11-11
Abstract: A B S T R A C T  O F  T H E  D I S C L O S U R E     Dust-loaded gas is cleaned by bringing it together with a friction-electrically charged mist of water droplets, which is formed by the aid of an electrically conducting liquid mist generating nozzle to which water in liquid state and de-ionized to a conductivity of at most about 1 x 10-5 ohm-1cm-1 is supplied and from which nozzle charge of a polarity opposite to that of the mist is continuously conducted away.
Patent CA-1103146-A (CA)
Title: Installation for protecting of reactors
Inventor: MUNNICHS CORNELIS M
IPC: B01D53/18
Filed: 1977-05-30
Granted: 1981-06-16
Abstract: ABSTRACT OF THE DISCLOSURE          Protection of reactors, installed in an enclosed space, in which reactions take place of gases or volatile substances that are toxic and/or that can form an explosive mixture with air. The enclosed space is in open connection  with means for passing any gases that may have escaped from the reactor through a liquid bath. The height of the liquid layer and the contents of the liquid bath are sufficient for the maximum possible amount of gas or volatile substance issued from the reactor to  be dissolved, condensed, cooled off, inertized or be allowed to react. The liquid in the bath is water, lye, a salt solution, a cooled salt solution or heavy oil.
Patent CA-1083989-A (CA)
Inventor: LIU VICTOR S H
IPC: C13K3/00
Filed: 1977-06-06
Granted: 1980-08-19
Abstract: ABSTRACT OF THE DISCLOSURE           A method is disclosed for the separation of water soluble polyols.  a solution containing the polyols is passed cyclically at different temperatures through a column contain-ing ion exchange materials to separate the polyols.
Patent CA-1063929-A (CA)
Inventor: FRENCH GORDON B
IPC: E21B43/26
Filed: 1977-06-07
Granted: 1979-10-09
Abstract: Abstract of the Disclosure A subterranean deposit containing oil shale is prepared for in situ retorting by initially excavating a plurality of vertically spaced apart voids of similar horizontal cross section located one above another within the deposit.   A plurality of vertically spaced apart zones of unfragmented deposit are temporarily left between the voids, each unfragmented zone having a thickness of less than about 190 percent of the smallest lateral dimension of the voids above and below it.   Explosive placed in each of the unfragmented zones is detonated, preferably in a single round to expand each unfragmented zone into the voids on either side of it and form a subterranean room containing a fragmented mass of particles having a void volume equal to the void volume of the initial voids.   Retorting of the expanded mass is then carried out to recover shale oil from the oil shale.
Patent CA-1073648-A (CA)
Title: Web of blended microfibers and crimped bulking fibers
Inventor: HAUSER EDWARD R
IPC: D04H5/02
Filed: 1977-06-10
Granted: 1980-03-18
Abstract: ABSTRACT     Mixtures of microfibers and crimped bulking fibers produce a lofty resilient web having properties that are unique for microfiber-based webs.  Included in these properties are a combination of high thermal resist-ance per unit of thickness and moderate weight, as well as other properties which give the web a distinctive utility as thermal insulation.
Patent CA-1091935-A (CA)
Inventor: LAKE MALCOLM J
IPC: C22B11/00
Filed: 1977-07-08
Granted: 1980-12-23
Abstract: PROCESS FOR RECOVERING PLATINUM GROUP METALS FROM ORES ALSO CONTAINING NICKEL, COPPER AND IRON               Abstract of the Disclosure A process is described for the separation of platinum group metals (PGM) from ores also containing iron, nickel and copper as sulfides.  The minerals in the ore are first concentrated by flotation and the ore concentrate is melted in an electric furnace to form a matte containing at least 95% of the precious metals.  The matte is granulated while molten to granules of a mean size not greater than about 210 micrometers (µm) and then pressure leached with sulfuric acid and oxygen to separate the nickel, iron and copper as their respective sulfates, while recovering the PGM as a residue.  Concentration of the leach residue by roasting and subsequent acid leaching yields a final PGM product containing the major portion of the precious metals in the ore and substantially all (i.e., at least about 95%) of the precious metals in the ore concentrate and which contains less than 1% total nickel, iron and copper.  The iron, nickel and copper in the leach solution can be sub-sequently recovered and/or discarded as, respectively, natrojarosite, nickel or copper metal or various compounds such as sulfides, hydroxides, or oxides, as appropriate to the specific application.
Patent CA-1080281-A (CA)
Inventor: BROWN ARTHUR K
IPC: B60T13/14
Filed: 1977-07-14
Granted: 1980-06-24
Abstract: HYDRAULIC BRAKE BOOSTER RESERVE SYSTEM                 ABSTRACT OF THE DISCLOSURE A hydraulic brake booster provides a housing within which a spool valve is slidably mounted.  The housing forms a pressure chamber and the spool valve is movable from a first position venting the pressure chamber to a second position, communicating the pressure chamber to a fluid pressure source as the spool valve moves toward the second position.  A piston or cylindrical accumulator is also slidably mounted in the housing and moves in response to pressurized fluid in the pressure chamber to actuate braking.  In order to hydraulically actuate braking when the pressure source is disabled, the piston includes a storage chamber within which pressurized fluid from the pressure chamber is stored.  With the source disabled an operator actuating means moves the spool valve to the second position to close the pressure chamber to the pressure source.  Further movement of the operator actuating means actuates a check valve to open the storage chamber to the pressure chamber so that pressurized fluid is communicated to the pressure chamber to move the piston for actuating braking.
Patent CA-1106305-A (CA)
Inventor: DIETRICHS HANS-HERMANN
IPC: C08B37/14
Filed: 1977-07-20
Granted: 1981-08-04
Abstract: Abstract of the Disclosure A process for the production of xylan and fi-brinous material from vegetable raw material by treating the raw material with saturated steam at a temperature of from 160 to 230°C. for a period from 2 minutes to 4 hours, the vegetable raw material disintegrated in this way being lixiviated with an aqueous solution, and wherein xylans and xylan fragments are separated from the solution in purified from free from monosaccharides and any other impurities.  In this way xylan can be obtained in high yield and possibly subjected to further treatment.
Patent CA-1085098-A (CA)
Inventor: SCHOLL CHARLES H
IPC: B31B50/62
Filed: 1977-07-29
Granted: 1980-09-02
Abstract: Abstract of the Disclosure A novel method and apparatus are disclosed for manufactur-ing a novel adhesive product.  The product is a pair of substrates adhered together by compressed hot melt adhesive foam.  The foam is created by first mixing a chemical blowing agent, such as powdered azodicarbonamide, into the solid hot melt adhesive at a temperature below the decomposition temperature of the blowing agent.  Subsequently, the solid adhesive and powdered blowing agent are heated to a temperature above the melting temperature of the solid adhesive and above the decomposition temperature of the blowing agent while confining the molten mixture under pressure in order to force the gas generated by the decomposition of the blowing agent into solution with the liquid adhesive.  The liquid adhesive is subsequently dispensed at atmospheric pressure with the result that the gas is released from the solution and becomes entrapped in the adhesive to form a homogenous closed cellular adhesive foam.
Patent CA-1053868-A (CA)
Inventor: REISCHL ARTUR
IPC: C08L75/04
Filed: 1977-09-29
Granted: 1979-05-08
Abstract: MICROPOROUS SHEETS AND A PROCESS          FOR MAKING THEM                      Abstract of the Disclosure A method for making microporous sheets is provided wherein a dispersion of a cationic and/or anionic polyurethane is mixed with a solution containing a non-ionic polyurethane and the resulting mixture is coagulated with a non-solvent for the non-ionic polyurethane.
Patent CA-1079233-A (CA)
Inventor: ALTHERR RUSSELL G
IPC: B61G1/38
Filed: 1977-10-03
Granted: 1980-06-10
Abstract: ABSTRACT OF THE DISCLOSURE            A rotary type railway car coupler comprising a shank slidably fitting within a yoke collar and attached thereto by a connecting pin; said yoke collar having an opening including a pin seat flange against which said pin seats when said coupler is in its normal running position, said shank and yoke collar having a coacting projection and slot means disposed relative to said coupler and said pin seat flange so that said yoke collar can only be assembled with the pin seat flange located such that it lies on the lower side of said coupler when the latter is in its running position.
Patent CA-1131174-A (CA)
Inventor: BALKO EDWARD N
IPC: C25B13/08
Filed: 1977-10-13
Granted: 1982-09-07
Abstract: ABSTRACT OF THE DISCLOSURE:        Synthetic-fiber diaphragms are improved by incorporating in the diaphragm an effective proportion of a suitable inorg-anic material such as TiO2, BaSO4 or K2Ti8O17, which is more hydrophilic than the fluoropolymer forming the diaphragm.  This is done either by mixing the inorganic material with the resin before it is made into fiber or by supplying sub-micronsized particles of the inorganic material, during or even after diaphragm formation.  A principal benefit is that this lowers the cell voltage which is required during an initial period (up to about 300 hours) of the operation of a chlor-alkali cell provided with such a diaphragm, making it possible to avoid such drawbacks as suffering an initial period of low production or the necessity of providing external cooling to the cell during such an initial period.
Patent CA-1075055-A (CA)
Inventor: WARNER ARTHUR W JR
IPC: G02B6/38
Filed: 1977-10-20
Granted: 1980-04-08
Abstract: OPTICAL FIBER CONNECTOR UTILIZING NESTED ROD ARRANGEMENT     Abstract of the Disclosure Described is an optical fiber connector in which accurate alignment is achieved by having the fiber enclosed by three parallel inner rods.  Two sets of inner rods, and hence two fibers, are aligned by means of a resilient sleeve containing three additional (outer) rods along which the inner rods can glide.  In one embodiment the sleeve is a metal tube and the outer rods are affixed to its inner surface, whereas in a second embodiment, adapted for mounting an array of connectors, the sleeve is a rubber-like material into which the outer rods are molded.  A plurality of such sleeves are mounted in holes in a rigid support member.
Patent CA-1094769-A (CA)
Inventor: DEREGIBUS ALFIO
IPC: B29C35/02
Filed: 1977-10-27
Granted: 1981-02-03
Abstract: ABSTRACT OF THE DISCLOSURE        An autoclave for the curing or vulcanization of rubber hose has a straight elongate trough-shaped receptacle.  The receptacle is provided with a unitary lid adapted to close the full length open top of the receptacle and closing means for moving the lid between open and closed positions.  A fixed single center support and a plurality of longitudinally spaced and yieldable supports share equally the weight of the receptacle.  Expandable seal means operate to seal the lid on the receptacle.
Patent CA-1097450-A (CA)
Inventor: UENO HARUO
IPC: C08F136/06
Filed: 1977-11-18
Granted: 1981-03-10
Abstract: METHOD OF PRODUCING 1,2-POLYBUTADIENE     ABSTRACT OF THE DISCLOSURE     Butadiene polymers containing 70% or more of 1,2--structure and a relatively low melting point are produced by polymerizing 1,3-butadiene in the presense of a catalyst which has been prepared by admixing (A) an organic solvent solution containing 1,3-butadiene, a cobalt compound and an organoaluminium compound; (B) an amide compound of the formula (2) or (3):                    (2) or                 (3) wherein R1, R2 and R4 are respectively an H atom, aliphatic hydrocarbon radical of 1 to 7 carbon atoms or aromatic hydrocarbon radical of 6 or 7 carbon atoms, R3 is H or an aliphatic hydrocarbon radical of 1 to 3 carbon atoms and n is 2 to 5, and;  (C) carbon di-sulfide.