baber/WOPTO huggingface dataset:
Patent CA-1042003-A (CA)
Title: Analogues of prostanoic acids not occurring in nature and process for preparing them
Inventor: BABEJ MILOS
IPC: C07C401/00
Filed: 1975-02-13
Granted: 1978-11-07
Abstract: NOVEL ANALOGUES OF PROSTANOIC ACIDS NOT OCCURRING IN NATURE               AND PROCESS FOR PREPARING THEM             Abstract of the Disclosure:    The present invention relates to novel not naturally occurring analogues of prostanoic acids of the formula         (I) as well as a process for their preparation.  The compounds of the invention have valuable pharmacological properties similar to those of the natural prostaglandins and therefore can be used as medicaments.
Patent CA-1054796-A (CA)
Inventor: FRANK ROBERT G
IPC: C03B23/033
Filed: 1975-03-07
Granted: 1979-05-22
Abstract: SHAPING HEAT-SOFTENABLE SHEETS      BY ROLL FORMING     Robert G. Frank, Murrysville, Pennsylvania  15668 Abstract of the Disclosure In forming heat-softened sheets by the roll form-ing method, continuously moving sheets of heat-softenable material, such as glass sheets, are conveyed continuously in a series along a conveyor into a roll forming station, where a pair of sets of rotating forming rolls move relatively to-ward one another to provide rolling engagement against the opposite major surfaces of each moving glass sheet in succes-sion in spaced relation to the conveyor for sufficient time to shape the sheets.  The rotating forming rolls are segmented into short lengths to reduce scuff marks caused by substantial differences in peripheral speed at different portions along the the axial length of the rotating forming rolls.  The present invention relates to a further improvement in roll forming apparatus that minimizes still further the likelihood of pro-ducing scuff marks when sheets are shaped by roll forming.
Patent CA-1055529-A (CA)
Inventor: MARDIGUIAN JEAN
IPC: C07C37/055
Filed: 1975-04-11
Granted: 1979-05-29
Abstract: Préparation de terpénophénols Procédé de préparation des terpénophénols de formule générale : (I) dans laquelle R est un radical terpénique choisi dans le groupe suivant : 2-isobornyle                     2-norbornyle                     de configuration exo ou endo, et en positon ortho, méta ou para par rapport au groupement OH; R1 est un atome d'hydrogène ou un radical alkyle inférieur à chaîne droite ou ramifiée de 1 à 4 atomes de carbone; caractérisé en ce qu'il comporte la chloration de l'éther méthylique d'un terpénophénol de formule : dans lequelle R et R1 sont définis comme ci-dessus, à l'aide du pentachlorure de phos-phore, suivie de la déméthylation du produit résultant pour obtenir le produit désiré de formule I.
Patent CA-1039616-A (CA)
Inventor: BASS HAROLD E
IPC: F16K17/04
Filed: 1975-05-26
Granted: 1978-10-03
Abstract: PILOT VALVE OPERATOR FOR SAFETY RELIEF VALVE            Abstract of the Disclosure A pilot valve for controlling main valve operation to relieve overpressure from a fluid system to which the main valve is connected. Opening and closing of the pilot valve is effected by a movable disc which carries with it an annular resilient gas-ket.  A seating surface, defined on the end face of the inlet nozzle, cooperates with the gasket when the disc is in closed position for effecting a pressure tight seal against fluid flow to the discharge side of the valve.  A perforated gasket retainer communicates exposure of upstream pressure to directly against the formed seal whereby at incipient lift of the disc initial flow discharge incurs minimum pressure drop therepast.  A two-stage huddle chamber surrounding the seal area is capable of re-sponding to the fluid pressure of even initial discharge to accelerate full lift opening of the disc.
Patent CA-1063749-A (CA)
Inventor: KUBENS ROLF
IPC: C08G18/68
Filed: 1975-05-28
Granted: 1979-10-02
Abstract: PROCESS FOR THE PRODUCTION OF CROSSLINKED, URETHANE-CONTAINING PLASTICS                   Abstract of the Disclosure The instant invention relates to a process for the production of crosslinked plastics comprising reacting organic polyisocyanates, organic polyhydroxyl compounds and olefinically unsaturated monomers, optionally in the presence of catalysts and/or other auxiliaries and additives, wherein (a)  the polyhydroxyl compounds used are (1) olefinically unsaturated polyhydroxyl polyesters with OH-numbers in the range of from 200 to 1000, molecular weights in the range of from 200 to 800 and double bond contents of from 0.1 to 0.5 gram equivalents of C=C double bonds per 100 g of polyester, or (2) mixtures of saturated polyhydroxyl compounds of the type known per se in polyurethane chemistry with olefinically unsaturated polhydroxy polyesters, said mix-tures having average OH-numbers in the range of from 200 to 1000, average molecular weights of from 200 to 800 and average double bond contents of from 0.1 to 0.5 gram equi-valents of C=C double bonds per 100 g of mixture;           (b)  the olefinically unsaturated monomers used are olefinically unsaturated compounds with no more than one isocyanate-reactive group and boiling points in the range of from 40 to 250°C, the monomers being employed in such quantities that, for every olefinically unsaturated double bond in the polyhydroxyl compound (a) there are from 0.3 to 5 olefinically unsaturated double bonds emanating from the polymerizable monomers; and (c)  the quantities in which the reactants are used are selected in such a way that there are from 0.3 to 5 iso-cyanate groups per hydroxyl group in the reaction mixture.
Patent CA-1052488-A (CA)
Inventor: ARRUDA PAUL J
IPC: C08F14/00
Filed: 1975-07-14
Granted: 1979-04-10
Abstract: Abstract of the Disclosure A fluoroelastomer latex which remains useful after being stored for a long period of time and which can be produced by a process employing a relatively brief residence time in the reactor can be prepared by (A) forming an aqueous emulsion of monomers capable of being copolymerized into a fluoroelastomer, said emulsion comprising (1) vinyl-idene fluoride plus at least one other fluorine-containing monomer, (2) a specified amount of lithium ion, and (3) an inorganic free-radical initiator; (B) subjecting said emulsion to copolymerization to form a fluoroelastomer latex; and (C) adding a creaming agent to the latex; and optionally carrying out creaming of the latex to form a layer of creamed (high solids) latex, followed by isolating the creamed latex.
Patent CA-1067332-A (CA)
Title: Dissolving baked novolak resin based photoresist with aqueous solution of permanganate and phosphoric acid
Inventor: PAAL GABOR
IPC: H01L21/30
Filed: 1975-10-02
Granted: 1979-12-04
Abstract: Abstract of the Disclosure Baked novolak resin based positive photoresists are either developed after exposure or stripped, following the use of the pattern resist layer as an etch mask, in aqueous solutions of a combination of permanganate and phosphoric acid.
Patent CA-1064734-A (CA)
Inventor: TANNER LEE E
IPC: C22C14/00
Filed: 1975-10-29
Granted: 1979-10-23
Abstract: INVENTION:  ZIRCONIUM-CONTAINING AMORPHOUS             METAL ALLOYS            INVENTORS:  LEE E. TANNER             RANJAN RAY CARL F. CLINE                  ABSTRACT OF THE INVENTION         Amorphous metal alloys are prepared from compositions in the beryllium-titanium-zirconium system.  The compositions are defined as those of the formula BeaTibZrcXd, wherein X is at least one additional alloying element selected from the group consisting of the transition metals listed in Groups IB to VIIB and Group VIII, Rows 4, 5 and 6, of the Periodic Table and of the metalloid elements phosphorus, boron, carbon, aluminum, silicon, tin, germanium, indium and antimony; "a" varies from 30 to 52 atom percent, "b" from 0 to 68 atom percent, "c" varies from 0 to 70 atom percent, and "d" varies from 0 to 10 atom percent.  These alloys evidence high strength, low density and good ductility.  The alloys are useful in applications requiring a high strength-to-weight ratio.
Patent CA-1058878-A (CA)
Inventor: SNOW GARY S
IPC: H01L21/50
Filed: 1975-11-14
Granted: 1979-07-24
Abstract: CERAMIC TO METAL SEAL                 ABSTRACT OF THE DISCLOSURE      Providing a high strength, hermetic ceramic to metal seal by essentially heating a wire-like metal gasket and a ceramic member, which have been chemically cleansed, while simultaneously deforming from about 50% to 95% the metal gasket against the ceramic member at a temperature of about 30% to 75% of the melting temperature of the metal gasket.
Patent CA-1059718-A (CA)
Inventor: DOUGHERTY TIMOTHY S
IPC: B29C48/67
Filed: 1975-11-25
Granted: 1979-08-07
Abstract: ADVANCING AND WORKING THERMOPLASTIC MATERIALS            Abstract of the Disclosure A typical compression relief design extruder screw having a helical flight for advancing and working a thermoplastic material is modified to shorten the feed and compression sections and to include a plurality of force-producing components in at least the compression section of the screw such that at least some portion of the components in any one turn of the flight lie in one plane essentially normal to the axis of rotation of the screw and such that the walls of the flight are uninterrupted.  This arrangement controls the location of the rupturing or fragmenting of what is referred to as the solid bed and controls the manner in which it is fragmented to provide an extrudate at the die and of the extruder which has a constant temperature which is uniform throughout each successive section of the thermo-plastic material at the die end.  Further, corresponding portions of the successive sections of the thermoplastic material at the die end are caused to have substantially identical time temperature profiles which is particularly advantageous when extruding expandable insulation in minimiz-ing amplitude of variation in the coaxial capacitance and the diameter of the insulated conductor.
Patent CA-1070193-A (CA)
Inventor: BOGDANSKI JOHN J
IPC: B43M5/04
Filed: 1976-02-09
Granted: 1980-01-22
Abstract: ENDLESS BELT ENVELOPE FLAP MOISTENING SYSTEM    Abstract of the Disclosure A moistening system for moistening the gummed flaps of envelopes being processed in a postage meter mailing machine includes a rotating endless belt extending into a liquid supply and transferring moisture to flaps pressed against it by a contoured finger positioned adjacent to the belt.  The finger is curvedly bowed and twisted relative to the belt moistening surface so as to urge essentially only the gummed portion of the flap against the belt for moistening although a wide variety of envelope flap designs and sizes are processed.  The endless belt may be pivotably supported to permit convenient removal of the liquid supply container.  The container is part of a liquid reservoir assembly which includes a tray support for the container which requires that several motions, vertical and horizontal, be sequentially followed before the container may be removed from the machine.  This minimizes inadvertent spillage.         The container may have cam surfaces cooperating with comple-mentary parts of the endless belt device to pivot it.  Inter-locks to prevent operation of the belt when the container is not-in place are provided.  The entire system is conveniently positioned below the deck of and within the postage meter mailing machine.
Patent CA-1059994-A (CA)
Inventor: MORGAN BARRY A
IPC: C07K5/08
Filed: 1976-02-20
Granted: 1979-08-07
Abstract: A B S T R A C T   O F   T H E   D I S C L O S U R E           Compounds of the formula:                             I wherein R is hydrogen or alkyl C1-3, R1 is alkyl C1-3, R2 is hydrogen or alkyl C1-3, R3 is hydrogen or cyclohexyl and R4 is hydrogen.  The compounds exhibit activity in the reserpine induced hypothermia test.
Patent CA-1046792-A (CA)
Title: Method and apparatus for the continuous automatic analysis of the crystallization point of liquid substances
Inventor: OUVRARD PAUL
IPC: G01N25/04
Filed: 1976-03-19
Granted: 1979-01-23
Abstract: METHOD AND APPARATUS FOR THE CONTINUOUS  AUTOMATIC ANALYSIS OF THE CRYSTALLIZATION     POINT OF LIQUID SUBSTANCES     ABSTRACT OF THE DISCLOSURE           The method consists of passing the substance to be analyzed through a measuring circuit at a constant flow rate, the temperature therein being maintained at a value sufficiently below the assumed crystallization point of the substance.  Heating means are provided along the flow path of the liquid substance in said circuit. The substance in the course of cooling is kept in contact with an isomorphous crystalline material.  The heating means is automatically turned on and off respectively at two characteristic temperatures, which are detected by measuring the pressure drop or difference of pressure of the substance at the inlet and at the outlet of the measuring circuit, variations of the pressure drop being effected as a function of temperature.  The values thus measured of the pressure drop are utilised as control data for respectively turning on and off the heating means when the tempera-ture of the substance at the outlet reaches one of its two characteristic values, the first corresponding to the crystallization temperature level, whilst the other corresponds to a temperature sufficiently above said crystallization point.  The temperature of the substance at the outlet of the circuit is continuously recorded, which constitutes a value representing the crystallization point of the substance.  The method and the apparatus are particularly useful for determining the crystallization point of benzene, of paraxylene or of orthoxylene automatically and continuously.
Patent CA-1046385-A (CA)
Inventor: HARTLINE ALBERT G III
IPC: C22F1/10
Filed: 1976-04-02
Granted: 1979-01-16
Abstract: ABSTRACT           A method of internally nitriding and thereby strengthening cobalt-base superalloys having at least 33% cobalt, up to 0.15% carbon, no more than 25% nickel and from 1 to 3% of nitride forming elements from the group consisting of titanium, vanadium, niobium and tantalum.  the method comprises the steps of:  heating the cobalt-base alloy at a temperature of from 1600 to 2500°F in a nitrogen-bearing atmosphere substantially free of moisture and oxygen, and diffusing nitrogen from said atmosphere into and throughout said alloy for a period of time sufficient to form nitrides having an interparticle spacing of less than 10 microns.
Patent CA-1052606-A (CA)
Inventor: YAMADA HIROSHI
IPC: G03G15/00
Filed: 1976-04-26
Granted: 1979-04-17
Abstract: ENLARGER-PRINTER   ABSTRACT OF THE DISCLOSURE           An enlarger-printer wherein aperture cards, each mounting a microfilm, are fed one after another from a card hopper, moved in the direction in which the major sides of the cards are oriented and scanned in the direction in which the minor sides of the cards are oriented, so that imagewise exposing of the photosensitive member can be effected for each card to form an enlarged latent image of the film of each card on the photosen-sitive member, which latent image is then converted into a visible image.  Before each card is scanned, the card is moved upwardly a distance corresponding to the margin between the image and the upper edge of the film to reduce the time required for effecting scanning. Switching between lenses of different magnifica-tions, exposing slits of different widths and scanning speeds consistent with desired magnifications of the image can be effected simultaneously by simply actuating a lever.  A mark reader may be provided so that these switching operations can be performed auto-matically, prior to effecting exposure by reading a mark on each aperture card.  The aperture cards are stacked, after being passed through various steps, in a position which is higher than the optical system of the lenses.  The used cards are stacked in the same order and face the same direction as when they were held in the card hopper.  Each of the reflectors for reflecting the light emanating from a light source can be withdrawn from the main body of the enlarger-printer lengthwise thereof, and does not require adjustments of its position when inserted in the enlarger-printer again, so that damage to the surface of each reflector, which might otherwise be caused in inserting and with-drawing, it can be avoided.
Patent CA-1077862-A (CA)
Inventor: BELL GEORGE R
IPC: B01D37/02
Filed: 1976-05-06
Granted: 1980-05-20
Abstract: REMOVING OF BARK FINES FROM AQUEOUS SUSPENSIONS                 Abstract of The Disclosure In the manufacture of wood pulp for use in making paper and other wood fiber products, it is first necessary to remove the bark from the logs.  While this can be done using a dry process, a wet process offers many advantages. However, one big disadvantage of the wet process has been the inability to economically remove the bark fines from the water used in the wet process.  The present invention provides an economical manner of solving this problem by using a rotary vacuum precoat filter equipped with a rotating knife to remove the bark fines from at least a portion of the recirculating water in a wet debarking process and to avoid long range problems with such a process by adding a small amount of finely divided talc to the bark fine suspension prior to filtration.
Patent CA-1043456-A (CA)
Inventor: BRODING ROBERT A
IPC: G01V1/02
Filed: 1976-05-28
Granted: 1978-11-28
Abstract: ABSTRACT OF THE DISCLOSURE         An apparatus and method for generating seismic signals are described using a modulated vacuum within a chamber plus a compliant, vibration-isolating means.  This compliant, vibration-isolating means provides a seal between the chamber and the earth, and also generally prevents the vibration of the chamber from being transferred to the earth.  The seismic signal is transmitted directly to the earth by the changes in absolute air pressure within the chamber (the modulated vacuum).  As the vibrations of the chamber are generally out of phase with the force developed by the changes in chamber pressure, the chamber vibrations must, for good efficiency, be isolated from the earth.  This arrangement is lightweight and inexpensive, as there is no need for either a special mass to induce the vibrations or a special mass to hold the vibrating mass in contact with the earth's surface.
Patent CA-1057918-A (CA)
Inventor: LARSEN GREGORY J
IPC: E01H1/08
Filed: 1976-06-22
Granted: 1979-07-10
Abstract: ABSTRACT OF THE DISCLOSURE           A street sweeper with an air recirculation type pickup hood includes a vehicle mounted hopper, a blower and a debris pickup hood extending transversely across a swept surface.  The blower withdraws air from the hopper and delivers it to one end of the hood and an air stream and entrained debris leave the other end of the hood through an air return line connected to the hopper.  Relatively narrow surface engaging sealing flaps extend along the front and rear sides of the hood.  At one end of the hood an air lock is provided having a pair of sequentially operating air lock doors for admitting large articles of debris such as cans or bottles that are windrowed to the entrance of the air lock by an angled deflector.    -1a-
Patent CA-1086218-A (CA)
Inventor: KINLAW JOE C
IPC: E06B7/12
Filed: 1976-08-27
Granted: 1980-09-23
Abstract: ABSTRACT OF THE DISCLOSURE          A condensate absorption and evaporation assembly having a trough-shaped non-corrosive metal frame supporting a sheet of absorbent material for absorbing and drawing the condensate by capillary attraction throughout the sheet of absorbent material.  The sheet of absorbent material aids in the evaporation of the condensate by dispersing it throughout the surface area of the material.
Patent CA-1060274-A (CA)
Inventor: FORTUNE WILLIAM S
IPC: B23K3/08
Filed: 1976-10-25
Granted: 1979-08-14
Abstract: ABSTRACT       A tool for either removing a multi-pin component from a circuit board or for inserting it therein.  The tool comprises a heater body which may, for example, be screwed to a soldering instrument in lieu of a solder tip and an extractor.  The heater body has a shape corresponding to that of the pins to be soldered or desoldered; for example, the heater body may consist of two parallel, spaced walls or it may consist of two semi-cylindrical portions.  They are used to heat the solder about the pins of the component.  The extractor co-operates with the heater body and is mounted behind the heater body. It is provided with a pair of claws, which may be bifurcated to grip the component, and a pair of spring-urged handles for opening and closing the jaws.  A spring may be provided between the extractor and the heater body for urging the extractor away from the heater body, thereby to automatically pull a component from the circuit board after the solder has melted.
Patent CA-1050789-A (CA)
Inventor: MUIR DAVID A
IPC: B23K35/22
Filed: 1976-12-21
Granted: 1979-03-20
Abstract: ABSTRACT OF THE DISCLOSURE             This invention provides a welding wire composition for submerged arc welding with skelp or plate which has good cold-temperature toughness characteristics.  Essentially, intead of utilizing large amounts of nickel in the welding wire (nickel being known to give good low-temperature toughness characteristics to ferritic metal), the combination of magnesium, chromium and molybdenum are utilized. These give equivalent low-temperature toughness but are less expensive than the nickel by itself.  In addition, titanium in specific, small amounts has been found to considerably increase the toughness characteristics beyond those obtain-able without it.
Patent CA-1092740-A (CA)
Inventor: PETERSEN ARTHUR W
IPC: C11D11/00
Filed: 1977-01-13
Granted: 1980-12-30
Abstract: ABSTRACT OF THE DISCLOSURE        Compositions for tile and grout cleaning and renewal of grout comprising an aqueous dispersion of a sequestering agent, a surfactant, a pigment and a water-soluble or water-disper-sible organic binding agent and a method for simultaneously cleaning and renewing tile and grout.
Patent CA-1040854-A (CA)
Inventor: FAGERVOLD LEROY W
IPC: E01H5/06
Filed: 1977-01-19
Granted: 1978-10-24
Abstract: Abstract of the Disclosure A snow gate attachment to be used at the end of a snow plow blade, adapted when in operation to prevent snow from discharging from the end of the blade, thereby preventing ridging when crossing driveways and the like.  The gate attach-ment has a frame with a bracket adapted to be mounted to the end of a plow blade, the gate member proper pivotally mounted to the frame, and actuating means mounted on the frame for actuating the pivoting movement of the gate member between an operating position and an inoperative position.
Patent CA-1087594-A (CA)
Inventor: KERR GEORGE T
IPC: C01B39/02
Filed: 1977-02-07
Granted: 1980-10-14
Abstract: ABSTRACT OF THE DISCLOSURE         The invention is a  process of synthesising a crystalline aluminosilicate reolite from an aqueous reaction mixture containing sources of silicate, of aluminate and of cautions in a quantity at least equivalent to the aluminum in the mixture.  The source of the cations comprises a polymer selected from ionenes and ionomers of such equivalent weight, and in such quantity, as to balance the negative charge on 1 to 100 percent of the aluminum-containing tatrahedra of the resulting  reolite with positively charged polymer nitrogen atoms.   The resulting zeolites can be obtained as open structure crystals and are useful as sorbents and catalysts.