baber/WOPTO huggingface dataset:
Patent CA-1288363-C (CA)
Title: Process and apparatus for the purification of synthetic oligonucleotides
Inventor: BLOECKER HELMUT
IPC: C07H21/00
Filed: 1985-09-12
Granted: 1991-09-03
Abstract: ABSTRACT         A process for the purification of synthetic oligonucleo-tides is described which drastically simplifies the hitherto very time consuming purification process.  The deprotection solution is adsorbed without being concentrated on a carrier having reversed phase properties and optionally ion exchanger properties, the oligonucleotides without lipophilic protecting group are removed, their protecting group is cleaved off from the adsorbed oligo-nucleotides, the adsorbed oligonucleotides are washed and eluted from the carrier and then purified in a manner known per se.
Patent CA-1297884-C (CA)
Title: Process for the preparation of amidosilanes
Inventor: ENDRES ROBERT
IPC: C08K5/5455
Filed: 1986-02-10
Granted: 1992-03-24
Abstract: PROCESS FOR THE PREPARATION OF AMIDOSILANES                  Abstract of the Disclosure Highly pure amidosilanes of the formula RxRy1Si  (?-?-R3)4-(x+y) wherein R is alkyl having 1 to 18 carbon atoms, cycloalkyl having 5 to 18 carbon atoms, alkenyl having 2 to 18 carbon atoms and aryl having 6 to 18 carbon atoms, R1 is alkoxy having 1 to 18 carbon atoms, R2 and R3 each independently of one another are alkyl having 1 to 18 carbon atoms or aryl having 6 to 18 carbon atoms, x is 1, 2 or 3, y is 0, 1 or 2, with the sum of x and y being 1 to 3, are produced by reacting an alcohol-free suspension of alkali metal salts or organic amides with organosilanes wherein said salts of amides are prepared by reacting a compound of the formula R2-?-?-R3 with an alcoholic solution of an alkali metal alcoholate in inert organic solvents and the removing alcohol from Le A 23 571 FC     the reaction mixture by distillation, and said organo-silanes are of the formula RxRy1 SiX4-(x+y) wherein X is a halogen or a carboxylate moiety having 1 to 18 carbon atoms, with the reaction being carried out with the exclusion of moisture in inert organic solvents.     Le A 23 571
Patent CA-1275910-C (CA)
Title: Indexable punch and die holders for turret punches
Inventor: SHAH HARSHAD M
IPC: B21D28/14
Filed: 1986-09-12
Granted: 1990-11-06
Abstract: Abstract INDEXABLE PUNCH AND DIE HOLDERS FOR TURRET PUNCHES     A punch press having multiple punch tool rotatable turrets wherein at least one of the punch tools on each of upper and lower turrets is indexable to different angular orientations.  Rotation of the indexable punch tools is accomplished by a slideably mounted motor for engagement with a timing pulley, which through a timing belt and a harmonic gear drive, acts to rotate the punch tools.  Position sensors and a brake are also provided.
Patent CA-1300351-C (CA)
Inventor: JENKINS PETER D
IPC: H02G7/02
Filed: 1987-01-19
Granted: 1992-05-12
Abstract: ABSTRACT                             CLAMP ASSEMBLY     A clamp assembly for securing the ends of longitudinal tensile load-bearing elements comprises a pair of rings 1, 2  having  complementary  tapered  surfaces  6,  7.   When assembled,  one ring 1 seats coaxially  inside  the other ring 2 and the elements 4 are gripped between the tapered surfaces.  The outer, tapered surface 6 of the inner ring 1 is roughened and embedded in the surface of the elements 4 so that load on the elements acts preferentailly to draw the inner ring 1 more tightly against the inner, tapered surface 7 of the outer ring 2.  An outer collar 3 engages the outer ring 2 with a flange 13 to retain the assembly. The assembly  finds  particular application as  an  armour clamp for a submarine telecommunications cable.
Patent CA-1287159-C (CA)
Title: Range limitation for a protection device in a power supply network
Inventor: NIMMERSJO GUNNAR
IPC: H02H7/26
Filed: 1987-04-07
Granted: 1991-07-30
Abstract: ABSTRACT OF THE DISCLOSURE            A method and device for range limitation and direct trip-ping for protection in the event of a fault on an electri-cal power line extending between two stations (P, Q) in-volves employing a travelling wave model in one of the stations (P) which, with the aid of measured currents and voltages in that station, to calculate the voltage distribution at a number of control points along the line. The range of the protection device is indicated as the distance between the measuring station and that control point for which a voltage difference (.delta.u) becomes equal to zero.  The voltage difference consists of the differ-ence between the absolute value of a voltage difference (.DELTA.u), formed as the sum of a voltage value (U") calculated with the travelling wave model for the control point at a certain time, and the corresponding voltage value (U') one half-period earlier and the absolute value of the latter voltage value.  When the voltage difference becomes greater than zero, direct tripping can be initiated.
Patent CA-1276680-C (CA)
Title: Modularized solid state register
Inventor: PHILPOT LUDLOW
IPC: G01R11/04
Filed: 1987-04-10
Granted: 1990-11-20
Abstract: ABSTRACT OF DISCLOSURE A modular meter assembly includes replaceable modules for a power supply, a register, a function controlling option circuit and a display of a measuring meter.  The modules are provided with mechanical and electrical interconnectors, permitting for simplified assembly, repair, maintenance and replacement.  An adaptor frame used with the meter assembly provides for retrofitting the improved modular structure on existing meters, to permit upgrading of the functions performed by the existing meters.
Patent CA-1306895-C (CA)
Title: Method for processing silver halide photo-sensitive material
Inventor: MURAI KAZUHIRO
IPC: G03C7/407
Filed: 1987-04-21
Granted: 1992-09-01
Abstract: ABSTRACT     Processing  an  imagewise  exposed  light-sensitive silver  halide  photographic material  comprising a  support having thereon at least one silver halide emulsion   layer containing silver halide grains which are sensitized with a sensitizing dye represented by general formula [I]:            [I]                   (wherein,  Z1  and  Z2  independently  represent a group  of atoms necessary to complete a heterocyclic ring consisting of  a  thiazole,  a  benzothiazole,  a  selenazole,  a benzo-selenazole, a naphthoselenazole, a benzimidazole, a naphtho-imidazole,  a pyridine  or  a  quinoline  ring,  wherein said heterocyclic  ring may have a substituent;  R1 and R2 are independently selected from a group consisting of an alkyl group, an alkenyl group and an aryl group; R3 is selected from a group consisting of hydrogen atom, a methyl group and an ethyl group;  X1 is an anion and 1 is 0 or   1).          Processing  takes  place  with  a  color  developer  solution containing an aromatic primary amine color developing agent in the presence of at  least one hydroxylamine derivative represented by general formula [II] or a water soluble acid salt thereof:     [II]    (wherein,  R21  and R22  are  independently  selected from a group consisting of a hydrogen atom and an   alkyl group having 1 to 4 carbon atoms which may have a substituent provided that R21 and R22 are not simultaneously hydrogen atoms and that R21 and R22 may be combined with each other to  form  a nitrogen-containing  ring;  and  at  least  one nitrogen-containing  heterocyclic  mercapto-compound.  This enables to reduce pollution load by removing benzyl alcohol from  the  color  developer.  By  carrying  out  the  color developing with a specific hydroxylamine derivative, the dye image  is  rapidly  formed  and  the  fog  is  restrained.  In addition, this type of processing is associated with reduced sensitivity or gradation fluctuation due to a change of pH.
Patent CA-1283811-C (CA)
Title: Positive pressure dough dividers
Inventor: JONES DONALD A
IPC: A21C9/08
Filed: 1987-06-15
Granted: 1991-05-07
Abstract: ABSTRACT           A positive pressure dough divider comprising a hopper (14) for dough, and a pair of rotatable sheeting rolls (15) which carry the dough from said hopper (14) into a transfer passage (16) leading to a volumetric measuring chamber (28) inside a rotating body (27) which is adapted to stop or rotate for periods at reduced speed, such that, whilst the measuring chamber (28) is being charged with dough from the said rolls (15), a maximum possible charging time is provided, and to move at greater speeds at other times to provide minimum possible delay between charging operations.          The rolls (15) are of sufficiently large diameter, and rotate in opposite directions at such a speed, as to produce or maintain a dough of good gas retaining properties while providing a positive pressure rise along the direction of flow in the passage between the rolls sufficient to charge the measuring chamber or chambers.  Cooling fluid is circulated within the interior of the rolls (15) and adjacent the transfer passage (16) to cool the dough moving between the rolls and through the transfer passage.
Patent CA-1303502-C (CA)
Inventor: LOVEGROVE CLAIRE J
IPC: A61K9/26
Filed: 1987-07-07
Granted: 1992-06-16
Abstract: TITLE OF THE INVENTION          SUSTAINED RELEASE PHARMACEUTICAL COMPOSITIONS IN ORAL DOSAGE FORM            ABSTRACT OF THE INVENTION          Oral dosage forms for neutral, zwitterions or salts of acidic or basic drugs with approximate zero order release kinetics comprise a core matrix of the drug, and a gelling polymer, the matrix being coated with a water permeable but insoluble polymer.
Patent CA-1336634-C (CA)
Title: Powdered lacquers, their production and application
Inventor: WEISS JOERN-VOLKER
IPC: C09D7/45
Filed: 1987-07-15
Granted: 1995-08-08
Abstract: Disclosed are powder lacquers based on epoxy resins and optionally polyesters as well as salts of primary (cyclo)aliphatic C4-18-diamines with benzene polycarboxylic acids as hardeners.          The lacquers also contain 1,4-diazabicyclo[2.2.2]octane.  The salts can be prepared by reacting easily available acids and diamines.  The lacquers, when hardened, give flat lacquer coatings.
Patent CA-1297540-C (CA)
Title: Enhancing higher order mode generation in microwave heating
Inventor: KEEFER RICHARD M
IPC: B65D81/34
Filed: 1987-08-07
Granted: 1992-03-17
Abstract: Abstract of the Disclosure In accordance with the present invention, a container for heating a foodstuff or other material in a microwave oven is provided with a mechanism for generating at least one higher order mode of microwave energy to give more even or a particular desired distribution of heating. This result can be achieved by a stepped structure protruding into or out of the container from a surface thereof, usually the bottom surface, or by a dielectric wall structure that comprises at least two contiguous dielectric wall portions of respectively different electrical thickness.
Patent CA-1287747-C (CA)
Title: Self-supporting composite plate, especially double floor
Inventor: BRUCKNER GUENTHER
IPC: E04C2/26
Filed: 1987-08-12
Granted: 1991-08-20
Abstract: ABSTRACT OF THE DISCLOSURE           A shallow pan, preferably of tin-coated sheet steel, serves for the production of a self-supporting composite plate, wherein the pan forms the outside wrapper for a filler with high compression resistance, e.g., anhydrite.  The pan contains a plurality of punches which provide anchoring with the filler material.  To increase the bearing strength of the composite plate, the pan bottom is made up of four intersecting, shallow, bulged-out zones.  These zones engage in the middle on a smooth, plate-like elevation and extend each in turn from deep areas along the intersecting symmetry axes of the pan toward the highest areas at each pan corner.  The density of the punches in the pan bottom preferably increases from the inside toward the outside.
Patent CA-1312736-C (CA)
Title: Cryogenic, forced-convection, freezing system
Inventor: KLEE DAVID J
IPC: F25D3/10
Filed: 1987-08-17
Granted: 1993-01-19
Abstract: ABSTRACT A process and apparatus are set forth for a refrigerating or freezing system wherein liquid cryogen, such as liquid air, is fully vaporized dur-ing use to avoid dangers of liquid cryogen pooling, liquid cryogen contact with apparatus surfaces or inadvertent oxygen enrichment.
Patent CA-1295157-C (CA)
Inventor: AMON MAX
IPC: G02B27/10
Filed: 1987-08-18
Granted: 1992-02-04
Abstract: Abstract of the Disclosure A wavelength discriminator designed to collect broadband, multiple wavelength input energy, to isolate specific narrow bands of interest, and to image such narrow bands of interest upon closely spaced, separate detectors.  This discriminator comprises optical devices (22, 18) for directing incoming radiant energy of a certain quality and involving a wide range of wavelengths through first (26a) and second (26b) wavelength selective reflectors separated by a medium that transmits the wavelengths of interest.  The wavelength selective reflectors in accordance with this invention are in a non-parallel configuration and disposed in a double pass geometrical arrangement wherein energy of a certain wavelength reflected from the second wavelength 9 elective reflector (26b) passes back through the first wavelength selective reflector (26a), with the energy from the first and second wavelength reflectors thereafter being directed onto respective detectors (32a and 32b).  An embodiment involving a third wavelength selective reflector (26c) grouped with the first and second reflectors may be utilized,  wherein energy of a different wavelength reflected from the third wavelength selective reflector passes back through both the second and first wavelength selective reflectors, with the selected wavelengths thereafter falling upon three separate detectors (32a, 32b and 32c) of the array.
Patent CA-1298555-C (CA)
Title: Anticoccidial method
Inventor: BAFUNDO KENNETH W
IPC: A61P31/04
Filed: 1987-08-25
Granted: 1992-04-07
Abstract: Abstract The present invention is directed to an improved method for the control of coccidiosis, in which both ionophore chemotherapy and immunology are employed.
Patent CA-1316592-C (CA)
Title: Method and apparatus for substituting a higher quality soundtrack for a lesser quality audio soundtrack during reproduction of the lesser quality audio soundtrack and a corresponding visual picture
Inventor: JAMES FRED
IPC: G11B15/46
Filed: 1987-09-14
Granted: 1993-04-20
Abstract: ABSTRACT OF THE DISCLOSURE        For use with master reproducing apparatus which reproduces a visual signal and a corresponding first audio signal, apparatus for substituting a second higher quality audio signal reproduced by slave reproducing apparatus for the first audio signal during reproduction of the visual signal and the first audio signal, includes a synchronizer detector for detecting the amount of synchronization between the first and second audio signals in response to the first and second audio signals and for producing an error signal corresponding thereto; a controller for controlling the slave reproducing apparatus in response to the error signal, to bring   the   first   and   second   audio   signals   into synchronization; and a switch for switching the first audio signal to a sound system when the first and second audio signals are out of synchronization, and for switching the second audio signal to the sound system when the first and second audio signals are in synchronization, in response to the controller,  whereby the higher quality second audio signal  is substituted  for the  first  audio  signal when synchronization is achieved between the second audio signal and the first audio signal.
Patent CA-1323721-C (CA)
Inventor: YONEZAWA TOSHIO
IPC: C04B38/08
Filed: 1987-10-26
Granted: 1993-10-26
Abstract: ABSTRACT          The  invention  is  concerned with a  lightweight aggregate which is inhibited for water absorption by pressure.  The  aggregate  is  treated with an aqueous  polymer  dispersion  having  a  viscosity permitting the dispersion to enter fine pores in a surface layer of the aggregate by absorption, the dispersion  so  entered  in  the  pores  being thickenable by rise of pH and when so thickened having a viscosity of not less than 50 times the viscosity before thickening.
Patent CA-1282026-C (CA)
Title: Apparatus for braking articles on a conveyor
Inventor: BERGSTROEM ANDERS
IPC: B65G47/88
Filed: 1987-11-13
Granted: 1991-03-26
Abstract: Abstract:      The present invention is directed to a device for braking articles to be conveyed on a conveyor.  The device utilizes inflatable flexible tubes to temporarily stop the movement of the articles on the conveyor.  It is part-icularly useful for articles such as paper packaging containing liquids.  In a preferred embodiment the braking device not only stops the movement of the articles on the conveyor but also lifts the articles off the conveyor.
Patent CA-1304888-C (CA)
Title: Immunologically active polypeptides useful for the preparation of antimalarial vaccines and of diagnostic kits for the detection of antisporozoite antibodies
Inventor: BERNARDI ADRIANO
IPC: A61K39/00
Filed: 1987-12-03
Granted: 1992-07-07
Abstract: "IMMUNOLOGICALLY   ACTIVE  POLYPEPTIDES  USEFUL  FOR  THE PREPARATION  OF ANTIMALARIAL VACCINES AND  OF  DIAGNOSTIC KITS FOR THE DETECTION OF ANTISPOROZOITE ANTIBODIES"                        Abstract Immunologically  active  polypeptides   constituted, towards the N-terminated end,  by an Asn-Val-Asp-Pro-Asn-Ala-Asn-Pro  sequence repeated three times  and,  towards the C-terminated end,  by at least three quadruplets with an  Asn-Ala-Asn-Pro sequence,  linked with each other by means  of  an amidic bond between the end proline of  the first sequence,  and the initial asparagine of the  first quadruplet.     Said   polypeptides  reproduce  nearly  exactly  the sequential  structure of the circumsporozoite protein  of P.  falciparum,  and  are useful for the  preparation  of antimalarial  vaccines  and  of diagnostic kits  for  the detection   of  antisporozoite  antibodies  in   clinical samples of malariated persons.
Patent CA-1276016-C (CA)
Title: Anthraquinone compounds and polarizing film containing the same
Inventor: MIURA KONOE
IPC: G02B1/08
Filed: 1988-01-12
Granted: 1990-11-06
Abstract: ABSTRACT OF THE DISCLOSURE         An   anthraquinone  compound   represented   by formula:                                    (I) wherein R and X are as defined in the specification, and a polarizing film containing the same.  The anthra-quinone  compound  exhibits  satisfactory  compatibility with  organic  polymers  and  high  dichroism,  and  the polarizing    films    have    excellent    performance characteristics.
Patent CA-1286804-C (CA)
Title: Dosimeter for radon and radon daughter products
Inventor: WHEELER ROBERT V
IPC: G01T1/167
Filed: 1988-02-08
Granted: 1991-07-23
Abstract: Abstract An improved radon detector has an enclosed housing with a removeable cap to provide a chamber within which a detector member is mounted for detecting the impact of alpha particle emissions from radon gas entering the chamber through apertures formed in the cap.  The detector member has at least one planar surface for detecting the emissions and is upported within the chamber to orient the planar detection surface in a generally vertical plane parallel to the central axis of the upstanding enclosed wall which positions the detectionsurface in parallel opposition to preferably the major portion of the enclosing wall on which radioactive decay products from radon are deposited,
Patent CA-1323092-C (CA)
Title: Image processing method and apparatus
Inventor: TAKENAGA HIROSHI
IPC: G06T5/00
Filed: 1988-02-16
Granted: 1993-10-12
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention relates to a picture processing apparatus.  In particular, a picture processing apparatus suitable for executing the contour tracking of an image comprises a picture element address computation section including adders and registers, a direction code computation section for coding the transition of the picture element address as a direction on the screen, a computation control section for controlling the picture element address computation section in accordance with a request for neighbor access of a current contour picture element for detecting a next contour picture element, a request for transition from the current contour picture element address to the next contour picture element address, and a request for transition to a start point in the neighbor access, all of these requests being supplied from a system processor.  Thereby, it becomes possible to increase the speed of contour tracking and arbitrarily set the size of a mask for contour tracking.  An image processing apparatus capable of realizing coarse contour tracking is thus disclosed.
Patent CA-1297239-C (CA)
Title: Tack off assembly
Inventor: CANN ROGER S
IPC: B60S3/06
Filed: 1988-03-17
Granted: 1992-03-17
Abstract: ABSTRACT OF THE DISCLOSURE                 TACK-OFF ASSEMBLY       A tack-off assembly  (10)  includes  a  support structure  (12)  defining  a  path  (14)   extending therethrough.  A rotatable axle (16) is mounted from the support structure  (12)  defining an axis A.   A feather duster assembly (18)  is mounted on the axle (16)  for removing dust particles by contacting the surface of an object  (20) traveling along the path (14).    The  feathers  (98)  of  the  feather  duster assembly (18) are mounted on a plurality of hubs (24) which are expandable for selectively expanding and contracting the length of the feather assembly (18) along the axis A.
Patent CA-1323949-C (CA)
Title: Ternary photoinitiator system for addition polymerization
Inventor: PALAZZOTTO MICHAEL C
IPC: C09D11/10
Filed: 1988-03-28
Granted: 1993-11-02
Abstract: Abstract Photocurable addition-polymerizable compositions containing a free-radically-polymerizable monomer and a photoinitiator system containing i) an arylidonium salt, ii) a sensitizing compound, and iii) an electron donor having an oxidation potential that is greater than zero and less than or equal to that of p-dimethyoxybenzene (1.32 volts vs. S.C.E.).  The compositions cure rapidly and deeply under ultraviolet or visible light.
Patent CA-1324874-C (CA)
Title: Process for the preparation and the isolation of aromatic nitriles
Inventor: BECKER ABRAM
IPC: C07C253/00
Filed: 1988-05-17
Granted: 1993-12-07
Abstract: PROCESS FOR THE PREPARATION AND THE ISOLATION OF           AROMATIC NITRILES                      ABSTRACT           A process is provided by means of which aromatic nitriles can be isolated in high yield.   The process comprises reacting an aromatic halogenated compound with cuprous cyanide in a suitable solvent.    The process is suitable for preparing many important materials, such as p-hydroxybenzonitrile.
Patent CA-1262053-C (CA)
Title: Assembly of structural modules for retaining walls and the like
Inventor: CRINNION EDWARD V
IPC: E02B3/04
Filed: 1985-02-08
Granted: 1989-10-03
Abstract: Abstract of the Invention A prefabricated concrete module and a composite wall structure comprised of an assembly of modules, where the module comprises a generally rectangular front and rear panel, joined by at least one generally trapezoidal partition means. A cellular wall structure is formed by stacking the modules and aligning the partition means on top of each other, thereby forming bins which contain loose material contributing to the weight of the structure. Provisions can be made for slabs which span longitudinally across partition means to be positioned upon or between partition means of vertically contiguous modules. These slabs, which capture an additional amount of loose material, can also, where desired, transfer lateral forces between superposed partition means. In a version of the module, useful whether or not the trapezoidal partition means are employed, the longitudinal distance from a partition to the edge of the front panel, is less than half the distance between partitions. By spacing these modules so that their front panels are longitudinally spaced apart, drop-in panels are able to be inserted, and a more economical wall structure can be assembled.