baber/WOPTO huggingface dataset:
Patent CA-1234991-A (CA)
Inventor: WEIR DONALD R
IPC: C22B1/10
Filed: 1984-09-27
Granted: 1988-04-12
Abstract: ABSTRACT OF THE DISCLOSURE     A process for recovering gold from refractory auri-ferous iron-containing sulphidic ore which comprises feeding ground ore as an aqueous slurry to an acidic pretreatment step.       The ground ore in the acidic pretreatment step is treated with aqueous sulphuric acid solution to decompose carbonate and acid consuming gangue compounds which might otherwise inhibit a subsequent pressure oxidation step, and subjecting the treated slurry to a first liquid-solids separation step to produce a sulphate solution and separated solids.  Water is added to the separated solids in a first repulping step to form a slurry having a pulp density in the range of from about 25 to about 60% by weight solids.  The first repulped slurry is oxidized in a pressure oxidation step at a temperature in the range of from about 135 to about 250°C under a pressurized oxidizing atmos-phere while maintaining a free acid concentration of from about 5 to about 40 g/L sulphuric acid to cause dissolution of iron, formation of sulphuric acid and oxidation of substan-tially all oxidizable sulphide compounds to sulphate form with less than about 20% of oxidized sulphur being present as elemental sulphur during the oxidation step.  Water is added to the oxidized slurry in a second repulping step to produce a repulped oxidized slurry with a pulp density in the range of from about 5 to about 15% by weight, and subject-ing the repulped oxidized slurry to a second liquid-solids separation step to produce an acid and iron containing solu-tion and oxidized separated solids.  The acid and iron con-taining solution is recycled to at least one of the first and second repulping steps.  The oxidized separated solids are washed with an aqueous wash solution in a washing step and the washed solids are separated from used washed solution containing acid and dissolved iron and non-ferrous metal sulphates in a third liquid-solids separation step.  Used washed solution containing acid, dissolved iron and dissolved non-ferrous metal sulphates is recycled to the acidic pre-treatment step, and gold is recovered from the washed solids.
Patent CA-1193417-A (CA)
Inventor: FERGUSON STEWART
IPC: E04D1/20
Filed: 1984-12-10
Granted: 1985-09-17
Abstract: ABSTRACT Generally rectangular wood shake covering elements laid up in over-lapping courses are spaced apart transversely of their lengths by sawn wood shingle filler elements.  Preferably the major portion of the overlapped portion of each course is formed by the tips of the sawn shingle filler elements, whereas the major portion of the exposed portion of each course is formed by the wood shake covering elements.  One of such elements can be notched providing a transversely extending shoulder dividing such element into tip and butt portions of unequal width.  In application, the shoulder tightly abuts the adjacent element.  The covering and filler elements can be used to construct a roofing panel which includes a sawn shingle underlayer beneath each course and waterproof paper which underlies at least the major portion of the shingle underlayer but which is secured to the roofing panel by having one end portion interposed between the underlayer and the covering or filler element at one end of the panel.  The covering elements can have registered kerf lines to align the successive courses of panels.
Patent CA-1255302-A (CA)
Inventor: MARFAT ANTHONY
IPC: C07D417/14
Filed: 1984-12-19
Granted: 1989-06-06
Abstract: DPC(Ph)6772A     ETHER PRODRUGS OF ANTIINFLAMMATORY OXICAMS                    Abstract Certain enol ether derivatives of oxicams (1,1-dioxides of N-heteroaryl-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamides and N-heteroaryl-4-hydroxy-2-methyl-2H-thieno[2,3-e]-1,2 thiazine-3-carboxamides) are useful as prodrugs of these antiinflammatory compounds.
Patent CA-1266146-A (CA)
Inventor: ASHBY BRUCE A
IPC: C09K21/06
Filed: 1985-03-01
Granted: 1990-02-20
Abstract: SILICONE FLAME RETARDANTS FOR NYLON ABSTRACT OF THE DISCLOSURE       There   is   provided   a   flame   retardant composition comprising:       (a)   about 50 to about 90 percent by weight of one or more nylon materials, and (b)   about  10  to  about  50  percent by  weight  of  a composition    effective   for    imparting    flame resistance comprising:             (i)   about 20 to about 75 percent by weight based on  (b)  of diphenylsilanediol,  low molecular weight phenyl  substituted siloxane diol,  or mixture thereof;   about 3 to about 30 percent by weight based on  (b)  of Group  IIA metal  carboxylic  acid salt;             (iii) about to to about 60 percent by weight based on (b) of aluminum trihydrate; and (iv)  about 10 to about 50 percent by weight based on (b) of organic halide.
Patent CA-1239256-A (CA)
Title: Retention aids
Inventor: FONG DODD W
IPC: D21H17/37
Filed: 1985-05-08
Granted: 1988-07-19
Abstract: ABSTRACT OF THE DISCLOSURE Certain cppolymers with lower alkyl quaternary ammonium salts of 1-acryloyl-4-methyl piperazine, particularly copolymers containing acrylamide, give outstanding results as fine and filler retention agents used in the manufacture of paper.
Patent CA-1228930-A (CA)
Title: Method and apparatus for detecting synchronous or  asynchronous data transmission
Inventor: BORG KEVIN E
IPC: H04L29/06
Filed: 1985-05-28
Granted: 1987-11-03
Abstract: METHOD AND APPARATUS FOR DETECTIMG SYNCHRONOUS OR          ASYNCHRONOUS DATA TRANSMISSIOM            Abstract A data terminal suitable for home use and having the ability to communicate in both  bit synchronous and character asynchronous formats is provided.  When a user places a call to a database, the terminal automatically detects whether the database is operating in the bit synchronous or character asynchronous format by examining the received signal for a specific character stream.  In response to the presence or absence of this character stream, the terminal automatically configures its receiver and transmitter to communicate in the desired format.  This frees the user from the task of modifying a synchronous/asynchronous setup parameter each time a different database is accessed.
Patent CA-1249691-A (CA)
Inventor: ROBINS JANIS
IPC: C08L51/00
Filed: 1985-06-17
Granted: 1989-01-31
Abstract: Abstract of the Disclosure An epoxy resin composition comprising a curable glycidyl ether epoxide group-containing material, an amino-terminated aliphatic polyether curing agent, a polymeric toughening agent, and a catalyst capable of providing an exotherm of at least 20°C.  The composition cures rapidly and is useful for providing adhesives which have high peel strength and high lap shear strength at room temperature and after aging at 120°C to 150°C or higher.
Patent CA-1256754-A (CA)
Inventor: WONSOWICZ CASIMIR J
IPC: C23C16/44
Filed: 1985-07-29
Granted: 1989-07-04
Abstract: ABSTRACT OF THE DISCLOSURE       METHOD OF DEPOSITING SILICON FILMS WITH REDUCED STRUCTURAL DEFECTS    Silicon  films  in  integrated  circuits  are  mass produced  with  reduced  structural  defects  by  passing  a reactant gas which contains silicon over a batch of wafers in a quartz chamber to deposit a silicon substance on both the wafers in a quartz chamber and the quartz walls of the chamber;  repeating  the  passing  step on other batches of wafers until the thickness of the silicon substance on the quartz  walls  exceeds  a  predetermined  limit;  directing  a forceful stream of gas against the quartz walls to knock microscopic particles of the silicon substance therefrom; removing  the  knocked-off  microscopic  particles from  the chamber;  and  continuing  the  passing  and  repeating  steps with no intervening acid etch of the silicon substance on the quartz walls.
Patent CA-1257715-A (CA)
Inventor: KOUTZ STANLEY L
IPC: G21C15/18
Filed: 1985-08-05
Granted: 1989-07-18
Abstract: REACTOR WITH NATURAL CONVECTION BACKUP COOLING SYSTEM      Abstract of the Disclosure A nuclear reactor includes a core submerged in a pool of liquid.  Under normal conditions, coolant flows through the core without intermixing with the liquid in the pool.  In the event of failure of the primary coolant circulation system, liquid from the pool flows through openings in the primary circulation system so as to cool the core by natural convection.  Flow through the openings during normal operating conditions may be controlled regardless of the flow rate.
Patent CA-1246316-A (CA)
Inventor: NABLO SAM
IPC: A61L2/08
Filed: 1985-11-04
Granted: 1988-12-13
Abstract: ABSTRACT      A process for controlling the penetration of electron beam radiation through package coverings of products to insure sterilization of the covering wraps, but protecting the internal products and medium from electron beam pene-tration and x-ray generation and the like, as required for such applications as pharmaceutics, medicaments, paren-teral drugs and devices, prostheses, food packaging and similar systems.
Patent CA-1264897-A (CA)
Inventor: LABATUT BRIGITTE
IPC: C08F210/16
Filed: 1985-11-20
Granted: 1990-01-23
Abstract: 1. A process for producing an ethylene/1-butene copolymer from ethylene in contact with a mixture of a dimerization catalyst and a polymerization catalyst, the said mixture comprising at least one alkyl titane, at least one transition metal halogenide selected from the group consisting of titanium trichloride and vanadium trichloride, at least one ether and at least one aluminum compound selected from the group consisting of the hydrocarbylaluminums and the dialkyluminum hydrides.
Patent CA-1235481-A (CA)
Inventor: BLANCO ALFRED W
IPC: G11B20/18
Filed: 1985-12-20
Granted: 1988-04-19
Abstract: ABSTRACT OF THE DISCLOSURE     With high density reel-to-reel tape drives, slight perturb-tions in the tape path can cause instantaneous speed varia-tions in the tape which can alter the recording density of data on the tape over a very short interval.  This condition can be detected by measuring changes in recording intervals on a plurality of data tracks.  Whenever all of the tracks indicate an unacceptable change in the recording interval an unacceptable speed variation has been encountered.
Patent CA-1259475-A (CA)
Inventor: DILGREN RICHARD E
IPC: C09K8/592
Filed: 1986-02-07
Granted: 1989-09-19
Abstract: A B S T R A C T         STEAM-FOAMING SURFACTANT MIXTURES WHICH     ARE TOLERANT OF DIVALENT IONS      In a steam-foam-displacement of oil within a reservoir for-mation having a significant ion-exchange capacity for releasing multivalent cations, the rate of the steam foam propagation is increased by injecting a mixture of steam and a steam-foaming surfactant mixture comprising an independently effective steam-foaming sulphonate surfactant mixed with a lesser amount of an alkyl or alkylarylpolyalkoxyalkylene sulphonate cosurfactant.
Patent CA-1251199-A (CA)
Inventor: OGAWA TOMOYA
IPC: C07H15/10
Filed: 1986-02-24
Granted: 1989-03-14
Abstract: ABSTRACT OF THE DISCLOSURE          SUMMARY OF THE INVENTION   Method for the production of asialoganglioside related compounds of the formula (I).                                            (I) wherein R1 is hydrogen or benzoyl, R2 is hydrogen or acetyl, R3 is hydrogen, acetyl, .beta.-D-galactopyranosyl or 2,3,4,6-tetra-O-acetyl-.beta.-D-galactopyranosyl, R7 and R8 are individually alkyl having 1 to 30 carbon atoms and Ac is acetyl.
Patent CA-1260819-A (CA)
Inventor: KOBIELLA ROBERT J
IPC: B65B13/32
Filed: 1986-03-04
Granted: 1989-09-26
Abstract: ABSTRACT A method and apparatus is provided for securing together overlapping portions of a thermoplastic strap loop around an object.  After the strap is fed to form the loop, the upper strap portion is restrained while pulling the strap trailing portion to tension the loop.  Lengths of the upper and lower strap portions are then gripped together in face-to-face contact to hold the loop in tension.  The trailing portion is severed from the loop lower strap portion, and the restraint of the upper strip portion is terminated.  A heating member is extended between the upper and lower strap portions in a direction generally parallel to the strap length.  The upper and lower strap portions are pressed against the heating member to melt regions of the strap.  The heating member is withdrawn, and the melted regions are pressed together as the melted regions solidify to form a joint.  Included in the apparatus are coacting first and second gripper means, an anvil, a cutter, and a heating member.  One of the gripper means defines a strap length receiving region below at least a portion of the gripping means for accomodating the lower strap portion prior to severing the trailing portion of the strap.
Patent CA-1263843-A (CA)
Inventor: KLUGER RONALD H
IPC: C07C69/73
Filed: 1986-03-13
Granted: 1989-12-12
Abstract: ABSTRACT OF THE DISCLOSURE          Sleep disorders in mammals, such as insomnia and narcolepsy, are treated by administering an effective amount of ethyl 4-acetoxybutanoate, or a closely related homolog thereof.    The compounds may also be adlninistered to mammals to cause muscle relaxation and as animal anaesthetics.  Moreover the compounds appear to inhibit the release of dopamine in the brain, and are hence useful also in treatment of conditions which are associated with abnormalities of dopamine release and dopamine sensitivities, such as Parkinson's disease schizophrenia and tardive dyskenesia.
Patent CA-1259954-A (CA)
Inventor: DRAKE CYRIL F
IPC: A61M31/00
Filed: 1986-03-25
Granted: 1989-09-26
Abstract: CONTROLLED DELIVERY DEVICE                  Abstract of the Disclosure A device for the controlled release of an active material into an aqueous medium, e.g. body fluids, comprises a water soluble glass container in which the active material is sealed.  The container wall has a region of reduced thickness which region dissolves before the remainder of the container wall to release the active material.
Patent CA-1268131-A (CA)
Inventor: GLENNER GEORGE G
IPC: C07K14/47
Filed: 1986-05-14
Granted: 1990-04-24
Abstract: ABSTRACT OF THE DISCLOSURE        A POLYPEPTIDE MARKER FOR ALZHEIMER'S DISEASE          AND ITS USE FOR DIAGNOSIS          A   novel  polypeptide,  Alzheimer's  Amyloid Polypeptide   (AAP),   is  provided  in  substantially purified  form which 18 isolated from amyloid deposits in patients with Alzheimer's  Disease.      The polypeptide has the following amino acid sequence:     SER-GLY-TYR-GLN-VAL-HIS-HIS-GLN-LYS-LEU-VAL-PHE-PHE-ALA-GLU-ASP-VAL-GLY-SER-ASN-LYS-COOH.     The  polypeptide,  or  fragmentS thereof, may be  used  to produce antibodies useful in a diagnostic test  for  Alzheimer's  Disease.    Nucleotide  probes corresponding  to portions of the polypeptide are also useful for diagnostic purposes.
Patent CA-1266845-A (CA)
Inventor: HOULE MARIO
IPC: B65G33/34
Filed: 1986-07-14
Granted: 1990-03-20
Abstract: ABSTRACT OF THE DISCLOSURE:            A conveyor system for use with rotary screw conveyors located side by side has a mechanical arrangement allowing individually adjusting the speed of each conveyor.  One end of each conveyor has driven teeth disposed in a circle and coaxial with the rotation axis of the conveyor.  Each conveyor is rotated by a circular disk rotating about an axis normal  to the axis of the conveyor and provided with driving teeth disposed in a circle on the disk and positioned to mesh with the driven teeth of the conveyor.  The driving teeth of each disk are individually mounted so that they may be moved between a working position where they mesh with the companion conveyor driven teeth and a non-working position where they are retracted wholly within the disk.  By thus retracting some of the disk teeth, the rotation of the companion conveyor may be step-like, thus controlling its conveying capacity.
Patent CA-1252866-A (CA)
Inventor: HSIA RICHARD Y
IPC: H04M9/00
Filed: 1986-08-12
Granted: 1989-04-18
Abstract: COMMUNICATION SYSTEM HAVING  VOICE AND DATA CAPABILITY            Abstract A communication system includes a plurality of station sets each connected over two pair communication facilities to a control module.  An adapter unit switchably connects an external data or voice device via a station set to either facility in response to a control signal from the control module.  A data mode is established by sending a data mode request signal from the station get to the control module.  An off-hook signal from a connected data device is used to request a data call.  The control module signals to which facility the adapter is to connect the data call and outputs a unique visual on the data call facility.  The control module prevents other calls from bridging onto or interfering with the data call.  The system also permits a voice call on a facility to be converted to a data call on the other facility.  Furthermore, a user can make a voice call over one facility while a data call is in progress on the other facility.
Patent CA-1245041-A (CA)
Inventor: NAIRN JOHN R
IPC: B25B27/02
Filed: 1987-01-19
Granted: 1988-11-22
Abstract: ABSTRACT OF THE INVENTION           There is provided a new and useful spindle puller tool comprising a body portion having first and second ends, at the first end of the body portion a longitudinally aligned threaded bore adapted to threadedly engage a spindle, and at the second end of the body portion a longitudinally aligned threaded bore adapted to threadedly engage a slide hammer.
Patent CA-1273087-A (CA)
Title: Multi-layered microwave absorber and method of  manufacturing the same
Inventor: HIZA MISAO
IPC: H01Q17/00
Filed: 1987-04-27
Granted: 1990-08-21
Abstract: ABSTRACT OF THE DISCLOSURE     A multi-layered microwave absorber suitable for use in ships, aircrafts and the like comprises a plurality of layers differing in impedance which are bonded together into an integral sheet structure by a silicone-type adhesive compound applied to a coat thickness of less than 0.1 mm.  The absorber is capable of wave absorption over a wide band, free from deformation or distortion, and highly heat-resistant and weather-proof.  A method of manufacturing the multi-layered microwave absorber is also disclosed.
Patent CA-1273949-A (CA)
Inventor: SCHULTZ WILLIAM J
IPC: C08G59/24
Filed: 1987-11-09
Granted: 1990-09-11
Abstract: Abstract of the Disclosure Diglycidyl ethers of ortho-substituted-4-hydroxyphenylfluorenes, curable compositions comprising the diglycidyl ethers, and cured resins thereof have a high glass transition and an improved modulus of elasticity.  The diglycidyl ethers of the invention for use in the curable composition of the invention can be mixtures obtained by the reaction of epihalohydrin with mixtures of fluorenebisphenols obtained by the reaction of one mole of one or more fluorenones with two or more moles or mixtures of two or more ortho-substituted phenols.  The compositions are useful in molding and coating applications and in composite articles where the operating temperature of the article or material is elevated.
Patent CH-558361-A (CH)
Title: Antihypertensive substd ergoline derivs - prepd converting an acid azide to the isocyanate and reacting with amine
Filed: 1971-05-19
Abstract: Cpds. of gen. formula (I): where R1 and R2 = H and/or alkyl (1-4C) or form together and alkylene-chain (=5C) and as their acid-addition salts are prepd. by reacting a cpd. (II) in aprotic solvent with an amine (III) HNR1R2 or by reacting a cpd. (IV) with a reactive carboxylic acid deriv pref. of formula (VIa): Cl-CO-NR1R2 (VIa). Cpds. (I) have anti-hypertensive activity and may be used against hypertonic disorders. In an example 6-methyl-9-ergolene 8 beta-acetic-acid azide is refluxed in CHCl3 and diethylamine is added to give 6-methyl 8 beta-(3-dimethylureidomethyl)ergolene.
Patent CH-527231-A (CH)
Title: Articulated plastic collar for connecting pipes
Inventor: REGINE PASERO-PERRUCHE
IPC: C08F16/12
Filed: 1968-07-25
Abstract: Articulated plastic collar for connecting pipes is produced by injection moulding plastic material, and has an abutment region (2) in the angular zones B2 and B3, and similar regions at the ends (14, 16) in the angular zones B1 and B4, in order to give increased resistance than in the flexible parts (10, 12) of the strip joining these regions (2, 14, 16), while the sum of B1 and B2 on the one hand, and of B3 and B4, on the other hand, is equal to 90 deg., and the strip is preformed according to the external curvature of the pipe to be encircled in the angular zones B1, B2, B3, and B4. Joining sections of drainpipes or sewage pipes on houses etc. The collar can be cheaply produced from rigid PVC by injection moulding.
Patent CH-513190-A (CH)
Title: Imidazolidinone derivs as cns depressants
Inventor: SCHINDLER WALTER DR
IPC: C07D403/06
Filed: 1969-08-11
Abstract: Imidazolidinone derivs. as CNS depressants. New cpds:- (where X = H, Cl, Me or MeO; R1 = C1-4 alkyl R2 = H or Me, n = 2 or 3) are prepd. by known method. The cpds. with a high therapeutic index, may be administered orally, rectally or parenteral. They also have sympathicolytic and histamin/serotonine-antagonist activity.
Patent CY-1714-A (CY)
Title: Process for retaining lateral walls of deep excavations
IPC: E02D27/30
Filed: 1994-05-06
Abstract: The invention relates to a process for propping or supporting the vertical support walls of deep ditches. After having freely constructed the ditch, to a depth compatible with the resistance of the support walls (1), a ring-shaped plate (3) is provided at the bottom of the ditch, which bears at its periphery against the vertical support walls (1), and which rests on the bottom of the ditch; after the setting of this ring-shaped plate (3), it is attached to the upper part of the support walls (1) for being supported, by means of braces (5); and then, the ditchs is continued, through the orifice (4) of the ring-shaped plate (3), down to the bottom of the work.
Patent DK-126185-A (DK)
Inventor: LINKIES ADOLF
IPC: A23L27/30
Filed: 1985-03-20
Abstract: Crystalline salts of acetoacetamide-N-sulfofluoride are prepared by reacting amidosulfofluoride H2NSO2F with diketene in the presence of inorganic bases, preferably alkali metal carbonates and/or hydrogencarbonates, in particular potassium carbonate, in an inert organic solvent. The salts can be further processed with further base, for example with methanolic KOH, into salts of 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxide; the potassium salt, in particular, is important for use as a sweetener ("Acesulfame").
Patent DK-132593-A (DK)
Inventor: NORMAN THOMAS
IPC: B05B1/04
Filed: 1993-11-25
Abstract: In a liquid-jet nozzle (1) for ejecting a progressively flattening jet (6) of cleaning liquid at high pressure, said liquid-jet nozzle being of the kind comprising   a) a nozzle aperture (5) extending through an end wall (7) extending transversely to the main direction of flow of the liquid jet (6), b) upstream of the nozzle aperture (5) and opening into the latter an inlet chamber (2) connected to the outlet of the liquid pump (3) of the high-pressure cleaner, and c) in the upstream side of the end wall (7), an elongate recess (8), the longitudinal central axis of which intersects the central axis of the nozzle aperture (5) at right angles,  the new feature consists in   d) that the recess (8) is oval and consists of ipsilaterally concavely curved surfaces extending smoothly into each other so as to form a continuous surface without sudden transitions or sharp edges. With this arrangement, turbulence is avoided in the inlet chamber (2) and in the nozzle aperture (5) itself, so that the jet (6) can flatten progressively so as to form a very sharp profile (6d) functioning almost like the edge of a scraper. <IMAGE>