baber/WOPTO huggingface dataset:
Patent CA-1132290-A (CA)
Inventor: HECKLES JOHN S
IPC: C08G61/12
Filed: 1980-02-28
Granted: 1982-09-21
Abstract: Abstract of the Disclosure Cross-linked acrylate-acetoacetate polymers are disclosed. These polymers are prepared by the reaction of at least one poly-functional acrylate with at least one diacetoacetate in the presence of a catalyst capable of promoting the reaction between the poly-functional acrylate and the diacetoacetate.  In a preferred embodi-ment, the polymers are employed to produce wear layer compositions for surface coverings.
Patent CA-1135721-A (CA)
Inventor: CRAWFORD ROBERT J
IPC: C07C29/17
Filed: 1980-05-12
Granted: 1982-11-16
Abstract: SYNTHESIS OF 1,4-BIS(DICYANOMETHYLENE)CYCLOHEXANE    ABSTRACT   1,4-Bis(dicyanomethylene)cyclohexane is the chemical of choice for the synthesis of TCNQ.  The present invention provides a simple, convenient, three-step synthesis of 1,4-bis(dicyanomethylene)cyclohexane from hydroquinone which uses water as the reaction solvent.
Patent CA-1150931-A (CA)
Inventor: KUNDA WASYL
IPC: C22B11/00
Filed: 1980-05-30
Granted: 1983-08-02
Abstract: A B S T R A C T          A process for the recovery of silver values from silver-containing material which also contains iron and arsenic includes leaching the material under oxidizing conditions at elevated temperature and pressure in aqueous nitric acid solution to dissolve a substantial amount of silver together with sub-stantial amounts of arsenic, iron and other metals if present.          The resultant leach solution is separated from undissolved leach residue and treated with a solution containing chloride ions to selectively precipitate substantially all dissolved silver as silver chloride without significant co-precipitation of other dissolved metals.  The silver chloride precipitate is then separated from the remaining solution.
Patent CA-1096920-A (CA)
Inventor: STUBER RICHARD A
IPC: H02K33/00
Filed: 1980-06-06
Granted: 1981-03-03
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention provides an electromagnetic circuit of the type in which a magnetically permeable armature is disposed to axially reciprocate within an air-gap defined by a pair of spaced-apart, coaxial poles on a fixed magnetic core, said air-gap comprising means providing a first space between said poles, said space having a circular cross section perpendicular to the axis of reciprocation of said armature, and means providing opposing pairs of exposed coplanar gap surfaces, the planes of said surfaces being displaced on opposite sides of said axis of reciprocation such that the maximum displacement between said pairs of surfaces is less than the maximum diameter of said first space, the space between said pairs of surfaces being devoid of core material, the improvement wherein said maximum displacement between said pairs of surfaces is greater than 16.7% of the cross-sectional area of said poles as measured on a plane-parallel to said pairs of surfaces.
Patent CA-1137698-A (CA)
Inventor: FRENCH FLOYD R
IPC: C08L75/04
Filed: 1980-06-18
Granted: 1982-12-14
Abstract: URETHANE FOAMS UTILIZING        HYDROCARBON PROPELLANTS                 ABSTRACT       A method of preparing a one component moisture cure polyurethane foam which is suitable for dispensing through an aerosol or pressurized container.  The method utilizes a prepolymer having a viscosity of 5,000 to 50,000 centi-poises, a catalyst and an unhalogenated hydrocarbon propellant whose boiling point is not greater than 10°C.
Patent CA-1122201-A (CA)
Inventor: ATCHISON HUGH C
IPC: F28G9/00
Filed: 1980-08-20
Granted: 1982-04-20
Abstract: ABSTRACT OF THE DISCLOSURE      The apparatus disclosed herein is designed for removing solid deposits, which interfere with heat transfer, from the surface of the basket section in an air preheater.  In one type of regenerative air preheater, the basket section rotates around a hub inside a chamber. A threaded rod is installed in the chamber parallel to the basket section, at a distance sufficient to allow clearance of the carriage assembly and jet nozzle, or nozzles.  The carriage assembly is attached to the rod by a threaded drive block and a motor drive, which is controlled by an electronic programmer, rotates the threaded rod to drive the carriage incrementally along the rod and beam.  As the basket section rotates, a high pressure water jet, or jets, is directed through the nozzle to wash the solid deposits off the basket section.     28,355-F
Patent CA-1152379-A (CA)
Inventor: ZIERENBERG BERND
IPC: F04B7/00
Filed: 1980-08-20
Granted: 1983-08-23
Abstract: ABSTRACT         A micropump for delivering metered doses of liquid comprises a capillary cylinder in which is movably mounted a piston.  The cylinder is mounted in a plastics block with a spool valve slidably movable between first and second positions.  In the first position an inlet line communicates with the cylinder chamber and upward movement of the piston causes a column of air and a column of liquid to be drawn in.  The valve is then moved to its other position whereby downward movement of the piston expels the metered dose of liquid out through an outlet.
Patent CA-1133300-A (CA)
Inventor: ROERIG ARNOLD J
IPC: D21F3/06
Filed: 1980-10-24
Granted: 1982-10-12
Abstract: ABSTRACT OF THE DISCLOSURE An extended press nip for a paper making machine including a large main roll with end bearings, a pressure shoe having a con-cave face defining an extending press nip with the roll, an over-head looped felt passing through the nip, a lower looped belt passing through the nip, means lubricating the belt surface facing the shoe, and pivotal supports for the end bearings for the roll with one support being a single pivot and the other support being a double pivoted link and the bearings additionally supported on dowels which accommodate alignment of the bearings.
Patent CA-1129296-A (CA)
Inventor: DEBUSSCHER CYRIEL R J
IPC: A01F12/44
Filed: 1980-11-14
Granted: 1982-08-10
Abstract: COMBINE HARVESTER     ABSTRACT OF THE DISCLOSURE A combine harvester with a threshing and a separating mechanism for threshing and separating crop material and a cleaning device for cleaning threshed and separated grain. The cleaing device comprises a aleaning fan structure with a fan housing and a fan therein.  The fan housing comprises a gennerally cylindrical body extending transversely of the cleaning device with a pair of opposite end walls and an air inlet provided in each end wall and a further air inlet and an air outlet provided in the cylindrical body and extending transversely of the cleaning device.
Patent CA-1158172-A (CA)
Inventor: AKAGIRI KENZO
IPC: H04B1/62
Filed: 1981-01-16
Granted: 1983-12-06
Abstract: ABSTRACT OF THE DISCLOSURE     A noise reduction circuit used for signal expansion in a noise-reducing decoder for a signal reproducer, and/or for level-compression in a noise-reducing encoder for a signal recorder, includes a first signal path connected to receive a subtraction signal and including a variable gain amplifier for amplifying the subtraction signal with controllable gain, and a low pass filter for providing substantial de emphasis of the high frequency components of the amplified subtraction signal relative to the low frequency components thereof to produce a noise-reduced output signal; a second feedback signal path connected to receive the output signal from the low pass filter and including a second low pass filter for providing minor de-emphasis of the high frequency components relative to the low frequency components of the output signal; a subtracting circuit for subtracting the output of the second low pass filter from an input information signal, and a gain control circuit for varying the gain of the variable gain amplifier in accordance with the level of the input information signal so that the gain increases for increasing signal levels of the input information signal.
Patent CA-1163415-A (CA)
Inventor: MOORE RUSSELL H
IPC: B22C9/12
Filed: 1981-01-26
Granted: 1984-03-13
Abstract: ABSTRACT OF THE DISCLOSURE    A method and apparatus is disclosed for the high-speed production of foundry cores of the type in which a foundry aggregate is mixed with a curable binder, preferably an isocyanate or phenolic material, to form a core mixture which is carried within a hermetically sealed core box and is hardened by the introduction into the core box of a gaseous curing agent, preferably an amine.   A positive displacement pump pumps a predetermined amount of liquid amine from a holding tank to a vaporizer where it is heated and completely vaporized.  The vaporized curing agent is forced from the vaporizer by the introduction of an inert gas, preferably nitrogen, and the mixture of the inert gas and the vaporized curing agent is entrained in a low pressure air stream which carries it to the core box, thereby curing the core.  After the core is cured, valves close to stop the flow of the low pressure air stream, the mixture of inert gas and curing agent to the low pressure air stream, and the flow of inert gas to the vaporizer.  At this time, a high pressure air stream is introduced into the core box thereby purging the curing agent from the core, and, simultaneously, the positive displacement pump is activated to dispense another predetermined amount of liquid amine into the vaporizer to initiate the process.  The system includes a control for sequentially opening and closing the valves and activating the positive displacement pump.
Patent CA-1149944-A (CA)
Inventor: TAJIMA OSAMU
IPC: G11B17/04
Filed: 1981-01-30
Granted: 1983-07-12
Abstract: ABSTRACT OF THE DISCLOSURE         A case for a disc-shaped recording medium is used in a disc-shaped recording medium reproducing apparatus provided with an insertion opening through which the case is inserted, a turntable for rotating the disc-shaped recording medium, a lid plate locking member and a disc-shaped recording medium clamping member provided at the innermost part of the disc-shaped recording medium reproducing apparatus opposite to the inserting opening with respect to the turntable, and a jacket opening enlarging member provided in the vicinity of the insertion opening, capable of moving between the position in the vicinity of the insertion opening and the innermost part of the disc-shaped recording medium reproducing apparatus above the turntable.  The case comprises a jacket having a space for accommodating the disc-shaped recording medium and an opening for allowing the disc-shaped recording medium to go in and out of the jacket, and a lid plate inserted through the opening of the jacket for closing the opening of the jacket.  The lid plate has cutouts wherein the jacket opening enlarging member and the lid plate locking member enter.  The opening of the jacket is enlarged by the jacket opening enlarging member within the cutouts of the lid plate upon insertion of the jacket inside the reproducing apparatus through the insertion opening.  The lid plate is locked by the lid plate locking member within the cutouts of the lid plate upon insertion into the innermost part of the reproducing apparatus together with the jacket.  The lid plate further has a ride-over part for to allowing the disc-shaped recording medium clamping member to ride over said lid plate and enter from the enlarged opening of the jacket and clamp the disc-shaped recording medium inside the jacket upon insertion of the lid plate into the innermost part of the reproducing apparatus together with the jacket.  The jacket is pulled out in an empty state leaving behind the lid plate locked by the lid plate locking member and the disc-shaped recording medium clamped by the disc-shaped recording medium clamping member, when the jacket is pulled out from within the reproducing apparatus in a direction opposite to the direction of the insertion.
Patent CA-1158041-A (CA)
Inventor: JOHNSON ALLEN S JR
IPC: F27B7/28
Filed: 1981-06-04
Granted: 1983-12-06
Abstract: THERMALLY INSULATED ROTARY KILN   AND METHOD OF MAKING SAME Abstract of the Disclosure A wear-resistant, thermal protective, annular liner for a rotary kiln and an attendant method of making the same.  The liner includes a series of elongate, axially aligned, annular composite liner sections, each of which comprises a layer of lightweight insulation material formed by side-by-side longitudinal rows of thermal insu-lating blocks positioned against the interior surface of the metal cylindrical wall of the kiln, with anchor brackets secured to the kiln wail and extending through respective openings in the insulating blocks and embedded in a relatively thicker and heavier layer of refractory material overlying the layer of insulation material, and wherein column portions of the refractory material project inwardly from the layer of refractory material and through the openings in the insulating blocks and in surrounding relation to the inner portions of the anchor brackets for supporting the layer of refractory material and preventing crushing the insulation material.         The method includes the forming of each of the annular liner sections in successive segments while periodically rotating the cylindrical wall of the kiln so that each successive segment may be supported upon a suc-cessive lower region of the kiln wall interior surface while the respective segment is being constructed.
Patent CA-1189652-A (CA)
Inventor: YIN ROBERT I
IPC: C12P19/04
Filed: 1981-07-03
Granted: 1985-07-02
Abstract: ABSTRACT OF THE INVENTION    S-119 is used as a finish for paper either alone, i.e., as a sizing, or as a water retention aid and to improve ink, solvent, oil, grease, and wax holdout in pigmented coatings.
Patent CA-1162231-A (CA)
Inventor: ANDERSON JAMES E
IPC: H01T4/10
Filed: 1981-07-10
Granted: 1984-02-14
Abstract: OVERVOLTAGE PROTECTOR FOR TELEPHONE LINES Abstract of the Disclosure An overvoltage or surge protector, particularly for telephone lines, has two electrodes in opposition in a housing.  The gap between the inner ends of the electrodes is set by a layer of dielectric material on the center portion of one or both end surfaces of the electrodes.  Breakdown occurs with assistance from dielectric stimulation of the arc, resulting from an electrical field across the dielectric.  The center portions are surrounded by annular grooves, which are also covered with a dielectric layer.  The end surfaces external to the center portions can be convex, and also roughened.
Patent CA-1177094-A (CA)
Inventor: KAISER ROMAN J A
IPC: A23L27/20
Filed: 1981-07-30
Granted: 1984-10-30
Abstract: Abstract The invention is concerned with novel odorant and/ or flavouring substances, namely compounds of the formula   wherein one of the symbols R1, R2 and R3 stands for methyl or ethyl and the others stand for hydrogen and R4 signifies hydrogen or methyl, with the proviso that R4 represents hydrogen when R1 and R2 both represent hydrogen and R3 represents methyl.      The invention is also concerned with a process for the manufacture of the novel alcohols of formula I.      The invention is also concerned with the use of the compounds of formula I as odorant and/or flavouring substances and odorant and/or flavouring substance compositions which contain compounds of formula I.
Patent CA-1166034-A (CA)
Inventor: TABATA HIROMARO
IPC: F23Q2/48
Filed: 1981-08-06
Granted: 1984-04-24
Abstract: ABSTRACT OF THE DISCLOSURE         A cigarette lighter including an ignition system of which a striking member support wheel is pivotally supported by a lighter body for pivotal movement in con-junction with the opening and closing movement of a cover, to enable the ignition system to be enclosed by the cover when the latter is closed.  The lighter further includes a nozzle urged at all times to move up-wardly to allow gas to issue therethrough, and a regulating member for the cover operative to move the nozzle downwardly by its underside, so that the nozzle can be automatically moved upwardly to allow gas to issue therethrough when the cover is opened and can be automatically moved downwardly to stop the issuing gas when the cover is closed.
Patent CA-1135265-A (CA)
Inventor: ARCHIBALD JOHN L
IPC: C07D455/06
Filed: 1981-08-10
Granted: 1982-11-09
Abstract: ABSTRACT OF THE DISCLOSURE       The invention concerns benzoquinolizines of formula   and their acid addition salts.  In the formula R7 is lower alkyl or a phenyl or naphthyl radical optionally substituted with specified substituents and R8 is methyl or ethyl.  The compounds possess high presynaptic .alpha.-adrenoceptor antagonistic activity and a good presynaptic/postsynaptic antagonistic selectivity.
Patent CA-1168260-A (CA)
Inventor: CRAWFORD ROBERT J
IPC: C11D1/755
Filed: 1981-08-19
Granted: 1984-05-29
Abstract: ABSTRACT              Alpha-sulfoxide and alpha-sulfone carboxyl compounds useful as detergent surfactants are disclosed. The compounds are particularly effective in removing greasy/oily soils under cold water laundering conditions. Detergent compositions containing the compounds also preferably contain cosurfactants and builder materials.
Patent CA-1143414-A (CA)
Inventor: JACKSON HIRAM S JR
IPC: H01H31/12
Filed: 1981-09-02
Granted: 1983-03-22
Abstract: ABSTRACT OF THE DISCLOSURE An improved fuse tube for a high voltage fuse contact used to interrupt low and high fault currents. The fuse tube has an arc-extinguishing bore into which a fuse link is insertable. The fuse link includes an arc-extinguishing sheath sur-rounding a pair of separable terminals and a fusible element normally between the terminals. An arc established and elongated between the separating terminals after the fusible element melts and decomposes the bore, the sheath, or both to rapidly evolve large amount of arc-extinguishing gases which are exhausted from an open end of the bore. A conductive chamber in the bore is electrically connected with one of the terminals and surrounds a portion of the sheath and the terminals. A mild taper is formed in the bore so that its larger end is at the open bore end. The chamber permits the fuse link to be positioned deep within the bore so that low fuse current interruption is not compromised. During high fault current interruption, the arc transfers from one of the terminals to the chamber, thus limiting the extent at which the arc can be elongated. This function of the chamber in combination with the mild taper results in efficient high fault current interruption.
Patent CA-1165398-A (CA)
Inventor: VONDER DAVID L
IPC: G01R19/165
Filed: 1981-09-25
Granted: 1984-04-10
Abstract: TITLE     ADJUSTABLE FLUX GENERATOR FOR A MAGNETICALLY             ACTIVATED ELECTRONIC SWITCH                       ABSTRACT        An adjustable flux generator used in con-junction with a Hall effect switch, comprising a coil and a magnetic circuit including an adjustable core.      The coil produces a field of magnetic flux in response to the presence of an electrical current which is transmitted via the magnetic circuit to the Hall effect switch.  The adjustable core is disposed to be manually adjusted to control the amount of magnetic flux delivered to the Hall effect switch.  When the flux exceeds the Hall switches operate point the switch produces an output signal.
Patent CA-1183767-A (CA)
Inventor: GLOMM HORST M
IPC: F23D14/84
Filed: 1981-12-08
Granted: 1985-03-12
Abstract: ABSTRACT OF THE DISCLOSURE  A forced draft, radiant wall, fuel burner has a central circular pipe for pressurized combustion air and a second larger diameter pipe coaxial with the air pipe, with pressurized gas supplied to the closed annular space between the two pipes.  The inner pipe extends forwardly beyond the end of the outer pipe.  Fuel orifices are drilled in the forward end of the annular space, so that the gas flow will be parallel to the axis of the pipes.  A second series of gas orifices are drilled through the outer wall of the second tube so that the gas flow is radial along the front of the burner tile.  A plurality of air ori-fices are drilled radially in the forward end of the air pipe, so that the air flow is radial and directed perpendicularly against the principal longitudinal gas flow.  The air tube spreads conically outwardly at its forward end.  There are a plurality of longitudinal slots for radial flow of air outwardly against a cylindrical wall which is part of a circular plate over the forward end of the air pipe.  The air from the slots is deflected by the cylindrical wall and flows generally in a reverse direction against the flow of the gas from the end ori-fices.  The two flows of air provide turbulent and complete mixing with the gas. The burning gas and flame then move radially outwardly in a circular sheet along the front of the tile, to heat the tile to incandescence, so as to radiate heat to the heat receptive surfaces of the boiler.
Patent CA-1137901-A (CA)
Inventor: KUO JOSEPH S-C
IPC: C12P19/00
Filed: 1981-12-15
Granted: 1982-12-21
Abstract: ABSTRACT      A process for the isolation and purification of immunologically active polyribosyl ribital phosphate (PRP), the capsular polysaccharide of Haemophilus influenzae type b.  The PRP has been purified with ethanol, Cetavlon (hexadecyltrimethyl ammonium bromide) and a phosphate containing adsorbent, hydroxylapatite.  The contaminants (nucleic acid, proteins and endotoxins) are removed to the minimum level by a treatment with hydroxyl-apatite.  Also described is a process for the preparation of a combined vac-cine containing the PRP (prepared as forementioned) and B. pertussis anti-gens.  The vaccine elicits anti-PRP antibody and antipertussis antibody (as measured by microagglutination) formations in young animals.  This sera with anti-PRP antibody exhibits a strong bactericidal activity.
Patent CA-1172657-A (CA)
Inventor: CORN JOHN E JR
IPC: C07C53/42
Filed: 1982-01-22
Granted: 1984-08-14
Abstract: METHOD OF CONTINUOUSLY FORMING AN ACID FLUORIDE        FROM CARBON MONOXIDE, ANHYDROUS  HYDROGEN FLUORIDE AND AN OLEFIN          Abstract of the Disclosure A method of continuously forming an acid fluoride from CO,HF and an olefin comprising continuously mixing all of the reactants in an area of high turbulence and continuously transferring the mixed reactants from the area of high turbulence into a continuous reactor where most of the reaction takes place.  This enables the reactants to be inexpensively combined and yet prevents the formation of a prohibitive amount of heat from this exothermic reaction.
Patent CA-1187556-A (CA)
Inventor: ILAR FRANC
IPC: H02H3/48
Filed: 1982-02-09
Granted: 1985-05-21
Abstract: Abstract For the protection of electrical networks in the event of power swings, a swing arrester (P) is employed, which independently of the value of the impedance at any time continuously  monitors  and evaluates the alteration with time either of the measured impedance or of the vol-tage multiplied by the cosine of the phase shift between current and voltage.   For the current connection (IR-IS) and the voltage connection (UR-US) there are employed inter alia two parallel connected pick-up-and-hold mem-bers (8, 8') the output signals from which are subtracted in a device (9) for the formation of a difference, so that the trigger circuit (10) connected after them and a counter (11) emit at the output (12) from the swing arrester (P) a logical signal only when the trigger circuit (10) emits a logical signal twice in succession within a pre-determined time.      With this protection the electrical networks are adequately protected in the event of power swings    against incorrect trippings also in cooperation with any kind of short-circuit protective relay.
Patent CA-1173232-A (CA)
Inventor: KUGELE THOMAS G
IPC: C08K5/57
Filed: 1982-02-25
Granted: 1984-08-28
Abstract: ABSTRACT    Compositions which are effective in stabilizing polymers against the deteriorative effects of heat are provided comprising 1) a hydroxythio tin compound or mixture of hydroxythio tin compounds, 2) a mercaptan-containing organic compound or-mixture of mercaptan-containing organic compounds, and, optionally, 3) an organotin compound or mixture of organotin compounds.          Also provided are polymer compositions containing said stabilizers, a process for stabilizing polymers, and articles of manufacture made from stabilized polymer compositions.