baber/WOPTO huggingface dataset:
Patent CA-1222258-A (CA)
Inventor: LINDNER ALFRED
IPC: C07C7/17
Filed: 1984-05-24
Granted: 1987-05-26
Abstract: ABSTRACT OF THE DISCLOSURE:          The invention relates to a process for the separation of a C4-hydrocarbon mixture which essentially contains n-butenes and butanes.  This process is charac-terized in that the mixture is reacted with a carboxylic acid in the presence of an acidic catalyst to form a butyl carboxylate; the reaction mixture obtained from the esterification zone is distilled to give, as the top product, a fraction containing the butanes, and, as the bottom product, a fraction containing the resulting butyl carboxylate; the butyl carboxylate is decomposed at elevated temperatures to give the carboxylic acid and n-butenes; and the mixture of n-butenes and carboxylic acid is then distilled, the n-butenes being obtained as the top product, and the carboxylic acid as the bottom product.  This process permits to use apparatus that are less expensive than those required for the conventional extractive distillation method.
Patent CA-1247846-A (CA)
Title: Wave-guide alignment process, and device used for said alignment
Inventor: EDYE THOMAS
IPC: G02B6/24
Filed: 1984-06-14
Granted: 1989-01-03
Abstract: 1. Method of alignment of a wave guide in respect to an optical excitation unit, these two elements contacting each other in a transverse plane, characterized in that one of these elements is moved in respect to the other along a first direction within said transverse plane, in that the time derivative (dP/dt) of the excitation function (P) is defined by at least a part of the light intensity which is injected into the wave guide by the optical excitation unit, in that a control signal is provided to mechanical means for moving this element in a first direction, said signal for moving this element in this direction with a given speed (v) being controlled by a certain functional relationship to said time derivative, this certain functional relationship being such that the speed becomes zero when a maximum of said excitation function is attained and such as : v=(dP/dt)**s where s is bound by the relation 1/2<s<1 and in that the same operations are effectuated by moving this element along a second direction in said transverse plane.
Patent CA-1218247-A (CA)
Title: Methods for enumerating 3-part white cell  differential clusters
Inventor: GERSHMAN RUSSELL J
IPC: G01N15/14
Filed: 1984-06-22
Granted: 1987-02-24
Abstract: CLUSTERS            Abstract Methods for enumerating leukocyte subpopulations employing a single analog channel.   Right angle and forward angle light  scatter measurements,  characteristic  of  leukocyte subpopulations  such  as  monocytes,  granulocytes,  and lymphocytes are reduced to a single parameter through a nonlinear  transformation whereby  cluster distinction  is maintained, and the cells are enumerated for a clinically useful histogram representation.
Patent CA-1238084-A (CA)
Inventor: AKRIDGE JAMES R
IPC: H01M10/0562
Filed: 1984-06-28
Granted: 1988-06-14
Abstract: A CRYSTALLINE SOLID LITHIUM CATION             CONDUCTIVE ELECTROLYTE                    Abstract A solid state electrolyte for solid state cell systems comprising a crystalline cation conductor of the composition SiS2, Li2S, such as crystalline Li2SiS3.
Patent CA-1204875-A (CA)
Inventor: TOWNSEND GREG M
IPC: G06F11/18
Filed: 1984-07-09
Granted: 1986-05-20
Abstract: ABSTRACT OF THE DISCLOSURE    A method and apparatus for selecting at least one redundant module from a plurality of redundant modules in which the apparatus comprises a plurality of voting devices for monitoring the operation of an active  redundant  module,  each  voting  device  for generating  a  vote  indicating  whether  or  not  the active redundant module should remain active and a control device,  responsive  to  the collective vote from the plurality of voting devices, for selecting at least one of the redundant modules to be active.          The  method  comprises  the  steps  of  monitoring  the operation  of  the  active  redundant  module  with  a plurality of voting devices, generating a collective vote  from  the  plurality  of  voting  devices  with respect  to  the operation  of  the  active  redundant module and controlling the operation of the redundant modules in accordance with the collective vote.
Patent CA-1255125-A (CA)
Inventor: MIYAKE HIDENORI
IPC: B21B39/08
Filed: 1984-07-25
Granted: 1989-06-06
Abstract: METHOD OF COILING THIN STRIPS                  Abstract of the Disclosure A method of coiling a thin strip on a tension reel is disclosed, which comprises coiling a strip rolled to a thickness of not more than 0.3 mm through a last stand of a cold tandem mill at different values of delivery side tension of the last stand and coiling tension produced by arranging a tension control means between the last stand and the tension reel.
Patent CA-1218056-A (CA)
Inventor: DILLING PETER
IPC: C08G8/04
Filed: 1984-09-14
Granted: 1987-02-17
Abstract: COLOR REDUCTION PROCESS FOR NON-SULFONATED LIGNIN     Abstract of the Invention Non-sulfonated lignin color reductions of over 90 per cent, and in some cases as high as 95 per cent, are achieved by a three-step process involving (1) methylolating or crosslinking the lignin, (2) the blocking of phenolic groups on the lignin molecule with blocking agents followed by (3) oxidation  with chlorine dioxide.  The light colored lignin dispersants produced by the invention process exhibit very low staining and low azo dye reduction, good heat stability, dye grinding efficiency, and dispersion stability.
Patent CA-1224629-A (CA)
Title: Process and apparatus for ammonia synthesis gas  production
Inventor: FUDERER ANDRIJA
IPC: C01B3/02
Filed: 1985-01-17
Granted: 1987-07-28
Abstract: PROCESS AND APPARATUS FOR AMMONIA SYNTHESIS IS GAS PRODUCTION               Abstract of the Disclosure A fluid hydrocarbon feed stream is converted with excess air to a mixture of hydrogen and carbon monoxide, also containing the nitrogen content of said air.  Following high temperature shift conversion to convert said carbon monoxide to hydrogen and carbon dioxide, the gas mixture is passed to a pressure saving adsorption system used to produce an impure ammonia synthesis gas mixture of hydrogen and nitrogen, with excess nitrogen being separated and removed therefrom with the impurities discharged from the system at high operating pressures, the purge gas effluent from the pressure swing adsorption system can be passed to an expansion turbine for desirable power energy.  The ammonia synthesis gas, which can be passed to a methanator for final purification, is thus produced without the need for employing an air separation plant or a nitrogen plant.
Patent CA-1250467-A (CA)
Inventor: MALAVIELLE FRANCOIS-LOUIS
IPC: G02B6/38
Filed: 1985-01-23
Granted: 1989-02-28
Abstract: A B S T R A C T            An optical fiber coupler-distributer, and method of manufacture.     A chamfer is polished on the side of each of two end portions of optical fiber (2A, 2B) so that the polished chamfers may be brought into contact to define an end face common to both fibers and of substantially the same cross section as that of a single fiber.  A groove is formed in the top surface of a soft support (4), and the middle of the groove (5) is sized to receive the stripped ends of optical fibers.  A glass plate (8) is applied to the top surface of the support to close the groove.  The chamfered end fibers (2A, 2B) are inserted into the groove from one end so as to form said common end face in the middle of the groove.  Another fiber (11 ) ( or similarly prepared pair of fibers) is inserted from the other end of the groove to establish end-to-end optical co-operation between the fibers.  The groove is filled with a liquid index-matching medium which sets when exposed to ultraviolet radiation.  Once the index-matching medium has been set, the glass plate can be peeled off the support (4) bringing with it the optical fibers which are fixed thereto in a configuration which defines a very simple optical fiber coupler-distributer.
Patent CA-1229437-A (CA)
Inventor: YAMAMOTO KAZUHIRO
IPC: H04B7/212
Filed: 1985-04-09
Granted: 1987-11-17
Abstract: ABSTRACT A space diversity communications system usable with a multi-direction time division multiplex communications network which consists of a plurality of scatterd satellite stations and one central station. While the central station is provided with a single antenna, each satellite station is provided with two antennas, main and supplementary. The central station, responsive to received signal, produces a control signal for each satellite station and sends it the satellite station. The satellite station selects either of two antennas in response to the control signal, thereby increasing radio transmission quality on a satellite-by-satellite basis.
Patent CA-1235451-A (CA)
Inventor: KOCH GERHARD
IPC: A47B88/493
Filed: 1985-04-16
Granted: 1988-04-19
Abstract: ABSTRACT OF THE DISCLOSURE One of two slidable furniture parts have an outer rail made from a triangular hollow section having a lengthwise slot for receiving an inner rail.  The outer rail is mounted on an inner rail and rides on a triangular array of balls.  The inner rail is made of two superposed U sections whose in-side legs are flatly welded together and have their edge portions bent apart to form a track for the upper row of balls.  The two lower rows of balls are received in the triangular hollow section below the bent edge portions.
Patent CA-1227295-A (CA)
Inventor: CALLENS PAUL
IPC: H04L12/64
Filed: 1985-04-17
Granted: 1987-09-22
Abstract: ABSTRACT            A method of transmitting digitized voice signals as packets of bits in a digital transmission network to which a plurality of terminals acting as sources of voice signals are attached. The method includes, at the transmitting end and for each source, the steps of : dividing the signal into successive, digitally-coded segments; performing a so-called source activity detection; and assembling the bits resulting from the coding operation into packets, each packet being provided with a header containing, in particular, a parity bit whose logic value is modified whenever an inactivity or long pause is detected. At the receiving end, detection of a change in the value of said parity bit causes the delivery of a packet of bits to the decoder/synthesizer to be delayed by a given time interval called retention delay.
Patent CA-1198212-A (CA)
Inventor: DEAN ROBERT
IPC: G07D5/00
Filed: 1985-04-17
Granted: 1985-12-17
Abstract: ABSTRACT        The operation of a coin testing apparatus is checked by switching the apparatus to a test mode.  In the test mode, the properties of items inserted into the apparatus are compared with stored "test" ranges, instead of "acceptability" ranges which are normally used to determine whether the item is a genuine coin.          A specially designed non-genuine coin is then inserted into the apparatus.  If the measured properties of the non-genuine coin fall within the "test" ranges, a signal is produced to indicate that the apparatus is operating correctly.  If any of the properties falls outside a "test" range, but within a further, contiguous range, a signal indicates that the apparatus is working adequately, but not optimally.
Patent CA-1262215-A (CA)
Inventor: MACKENZIE JOHN S VIOLET ST NOR
IPC: B63H25/06
Filed: 1985-05-27
Granted: 1989-10-10
Abstract: ABSTRACT There is provided the combination of a towing vessel and a towed vessel, the towed vessel having a freely swinging main rudder.  An angle sensor determines the angle of the main rudder with respect to the towed vessel, and then active flap is provided at the rear of the main rudder.  An operative device dictates the orientation of the active flap with respect to the main rudder.  A tow line extends from the towing vessel to the towed vessel, and the towed vessel includes a tow line direction sensor.  Control means are provided for controlling the operative device in response to input from the tow line direction sensor and the angle sensor.
Patent CA-1256008-A (CA)
Inventor: GROITZSCH DIETER
IPC: A41D31/00
Filed: 1985-06-26
Granted: 1989-06-20
Abstract: ABSTRACT   A drapable microporous multi-layer bonded fabric designated for medical applications, especially for use in operation rooms, which contains a microfibre centre layer of hydrophobic fibres.  This is covered on both sides by optionally non-woven laminates bonded together with a bonding agent.  All layers are permanently secured together by means of impressing an elastically hydrophobic bonding agent.  In this manner, the bonding paste penetrates in a rod-like fashion the entire cross-section of the multi-layer construction. Also described is a process for the production of the multi-layer bonded fabric consisting of arranging a microfibre layer on top of a reinforcing material of non-woven fabric, and then applying a non-woven covering.  The three-ply laminate is washed in hot water, squeezed out, and imprinted with the bonding paste.  The imprinted material is then dried and is ready for use.
Patent CA-1247239-A (CA)
Inventor: NELSON RICHARD B
IPC: H01J25/04
Filed: 1985-11-06
Granted: 1988-12-20
Abstract: Abstract of the Disclosure Beam Tube With Density Plus Velocity Modulation A tube for amplifying high-frequency multi-kilowatt, amplitude-modulated signals utilizes a linear beam of electrons which is density-modulated by a permeable control grid 24 spaced close to a thermionic cathode 22.  The beam is focused through a drift tube 17 having two axially spaced gaps 18, 35, each coupled to a resonant circuit 84, 86 such as a hollow cavity.  The first circuit 84 is tuned to a resonant frequency higher than the signal frequency to produce velocity-modulation bunching of the beam electrons in phase with the density-modulation from the grid.  The second circuit 26 is tuned to the signal frequency and its energy is coupled out to an external load.     The grid modulation is Class B or Class C so there is no current between the electron bunches. The floating bunching circuit 84 can thus, by velocity modulation, produce very dense bunches to excite the output circuit 26, providing very high conversion efficiency.     The tube is particularly adapted to amplitude-modulated signals such as television, for which a conventional klystron yields very low average efficiency.
Patent CA-1264420-A (CA)
Title: Outil de presse a parties travaillantes demontables  sous presse
Inventor: VRIGNAUD DORICE
IPC: B30B15/02
Filed: 1985-11-08
Granted: 1990-01-16
Abstract: Un outil de presse ayant des parties travaillantes sous forme de une ou plusieurs matrices et de un ou plusieurs poinçons, et un serre-flan guidant ce ou ces poinçons dans leur déplacement et maintenant en place contre cette ou ces matrices, dans sa course de travail, une tôle soumise à une mise en forme. L'outil est pourvu entre la ou les matrices et le ou les poinçons, d'un serre-flan qui effectue au moins une course normale de travail et deux courses de retrait au choix, à savoir une course normale de retrait et une course de retrait d'intervention laquelle permet un démontage de ces parties travaillantes de l'outil sous presse.
Patent CA-1260357-A (CA)
Inventor: PARKISON RICHARD G
IPC: F16K/
Filed: 1985-11-13
Granted: 1989-09-26
Abstract: ABSTRACT OF THE DISCLOSURE A small, reliable diverter valve that maintains a relatively constant flow through a spray nozzle in spite of water supply pressure fluctuations and that positively terminates flow from the faucet spout during hand spray operation.  A variable elasticity cup seal keeps constant area passageway to the spray nozzle in spite of water supply fluctuations.  A noramlly open path, moreover, enables air to flow from the spout into the water supply system in conditions of negative supply pressure and thereby assists the cup seal in preventing backflow from the spray nozzle into the fresh water supply.
Patent CA-1265650-A (CA)
Inventor: KAJIHARA JUNICHI
IPC: B01D15/08
Filed: 1985-11-20
Granted: 1990-02-06
Abstract: ABSTRACT OF THE DISCLOSURE    An aqueous solution containing a physiologically active substance, which is produced by recombinant DNA technique and which has cytotoxic activity against L-M cells and is capable of inducing hemorrhagic necrosis of transplanted Meth A sarcoma in the BALB/c mouse, can be effectively, efficiently purified by column chromatography using a column packed with a dye-bonded crosslinked agarose gel.
Patent CA-1266835-A (CA)
Inventor: STEGER ARTHUR C
IPC: A47B53/02
Filed: 1985-11-26
Granted: 1990-03-20
Abstract: ABSTRACT           A moveable storage system having one or more storage units, a plurality of  flexible track elements conformable with an irregular supporting surface, and an individual base structure which supports each storage unit  for movement along the track elements through roller members associated with particular track elements.  One or more of the roller members is a load leveling articulated wheel assembly having a pair of spaced roller wheels operative to pivot about an articulation shaft to conform with flexible track profiles to accommodate supporting surface irregularities under and between various track elements spaced along the length of the storage unit.
Patent CA-1246872-A (CA)
Inventor: PANZARELLA JAMES S
IPC: A63H33/30
Filed: 1985-12-11
Granted: 1988-12-20
Abstract: Abstract:         A toy bubble-blowing lawn mower is disclosed having a wheel driven impeller coupled to a propeller for generating a stream of air.  The impeller is also intermittently coupled to a bubble disk in either direction of rotation of the impeller for successively moving apertures in the disk covered by a bubble-forming liquid film into alignment with the stream of air.
Patent CA-1266103-A (CA)
Inventor: SUPRONO PAUL W
IPC: H01R4/48
Filed: 1986-05-02
Granted: 1990-02-20
Abstract: Electrical Terminal and Method of Assembly Abstract of the Disclosure A terminal for making electrical connection to a conductor has a base and a gripper that is held in a fixed position along the length of the base by a gripping finger that acts in tension in one direction at one location along the length of the base and a back portion that acts in the opposite direction at a second location along the length of the base to resist the tension.  In other aspects, the supporting leg makes contact with the base only at locations that are not as near to the end of the conductor as the locations at which the gripping finger presses the conductor; the pressing of the conductor into contact with the base is accomplished only by resilience of the gripping finger along a section that does not extend beyond the end of the base; the base has a number of troughs of different dimensions that respectively seat wires of different gauges; and the terminal is assembled by inserting the base in an opening defined by the force end of the supporting leg and gripping finger to a position in which the free end of the gripper contacts the base at a pivot point, and rotating the gripper about the pivot point until the back portion contacts the end of the base and the free end of the gripper engages a projection on the base.
Patent CA-1242866-A (CA)
Inventor: LAUE KARL H
IPC: F01N3/20
Filed: 1986-05-06
Granted: 1988-10-11
Abstract: ABSTRACT     Method of removing nitric oxides and soot from the waste gases of heavy oil machines or heavy oil furnaces.            The invention relates to a method of removing nitric oxides and soot from the waste gases of heavy oil machines or heavy oil furnaces by means  of  free  passage  catalysts  at  elevated  temperatures  with  the addition of ammonia to the waste gas current prior to contact with the catalysts.   In order to make the method more effective the invention proposes that the soot settling on the catalyst surfaces is removed by burning and/or is removed by the effect of friction by adding sand, ashes or suchlike abrasive mixtures to the waste gas current, prior to contact with the catalyst.
Patent CA-1252792-A (CA)
Inventor: WAKSELMAN CLAUDE
IPC: C07D213/73
Filed: 1986-05-21
Granted: 1989-04-18
Abstract: La présente invention concerne un procédé de perfluoroalkylation de dérivés aromatiques par réaction, dans une première étape, dudit dérivé aromatique du dioxyde de soufre et d'un métal choisi parmi le zinc, l'aluminium, le manganèse, le cadmium, le magnésium, l'étain, le fer, le nickel et le cobalt dans un solvant aprotique polaire suivie, dans une deuxième étape, par l'addition d'un bromure ou d'un iodure de perfluoroalkyle. Ce procédé permet la perfluoroalkylation de dérivés aromatiques et en particulier de phénols, sur une base industrielle.
Patent CA-1272980-A (CA)
Title: Procede de decapage acide de produits en acier  inoxydable
Inventor: BOUSQUET BERNARD
IPC: C23G1/08
Filed: 1986-07-25
Granted: 1990-08-21
Abstract: Procédé de décapage de produits en acier inoxydable, dans lequel on utilise un bain de décapage de composition initiale: HF 10 à 50 g/l; Fer ferrique (Fe3+) dissous ? 15 g/l; et Eau : le solde, à une température comprise entre 15 et 70.degree.C. Pendant la ou les opérations de décapage, on maintient la teneur en fer ferrique du bain à au moins 15 9/1 par oxydation du bain comportant au moins une ou des injections d'air de débit total supérieur ou égal à 1 Nm3 par m2 d'acier inoxydable décapé et par h de décapage de chaque élément de surface décapé. Le procédé de l'invention s'applique particulièrement au décapage industriel de tôles et bandes en acier inoxydable, dans lequel il permet d'éviter l'emploi d'acide nitrique et les pollutions qui en résultent.
Patent CA-1264463-A (CA)
Inventor: GROENER ALOIS
IPC: B65D30/24
Filed: 1987-02-19
Granted: 1990-01-16
Abstract: ABSTRACT                A  rose-bottom  or   block-bottom valve bag of paper or the like foldable material, having  a  filling  valve  which  is  incorporated in one of its two ends bounded laterally by lateral fold  lines,  in  the  region  of  a  valved-forming corner  turn-in and which is formed from a valve tube with an  inner layer which can be converted out  of  a  normally  inactive  adhesive  state  into a  state  in  which  it  is capable  of  adhesion  or sealing for a hermetic sealing of the valve tube, and in which a shut-off lip of flexible material of at least the width of the valve tube projects beyond  the  valve  tube  at its  end  adjacent to the interior of the bag at its under side, which lip  can  be  moved  automatically  into  a shut-off position sealing  the  inner opening of the valve tube  under  the pressure of the  filling material introduced into the interior of the bag.
Patent CA-1273627-A (CA)
Inventor: BORZENSKI FRANK J
IPC: B29B7/28
Filed: 1987-04-30
Granted: 1990-09-04
Abstract: CONTROL SYSTEM FOR RAM FED MIXING MACHINE     ABSTRACT OF THE DISCLOSURE     A batch mixer for position monitoring means for the ram operably coupled to the ram moving motor to move the ram within a range of positions adjacent the ram's "down" position to improve mixing by allowing limited upward movement of the ram as a result of internal pressures inside the mixer.          Excessive ram return movement is prevented however, and the limited ram movement is achieved by feedback control influence on the pressure to the fluid actuator that operates the ram.          Also disclosed is a feedback control for batch size to assure that optimum use is achieved for the mixer during each batch mixing interval.