baber/WOPTO huggingface dataset:
Patent CA-1148113-A (CA)
Inventor: GREAVES BRUCE B
IPC: C25B9/17
Filed: 1979-05-16
Granted: 1983-06-14
Abstract: ABSTRACT           "IMPROVEMENTS IN AND RELATING TO ELECTROLYSERS"      An electrolytic cell comprises an electrolysing chamber having a pair of terminal electrodes located therein and adapted to be connected to the poles of a D.C. source.  A plurality of bipolar electrodes in the form of parallel flat annular discs are located in the chamber between the terminal electrodes and are rotatable about a common central axis through their centres. An electrolyte inlet is located radially outwardly of the bipolar electrodes.  In order to provide vigorous scouring of the bipolar electrodes with relative low fluid flows to the cell, the electrolyte inlet comprises one or more elongate slots formed in the cylindrical wall of the chamber and extending in a direction generally perpendicular to the planes containing the bipolar disc electrodes.
Patent CA-1120537-A (CA)
Inventor: HARNER KERMIT I
IPC: F03D7/04
Filed: 1979-05-31
Granted: 1982-03-23
Abstract: U. S, Serial No. 916,32L         WIND TURBINE GENERATOR PITCH CONTROL SYSTEM                     ABSTRACT OF THE DISCLOSURE    Wind energy is used to drive a wind turbine, which is in turn connected to an electrical generator to produce electri-cal power. The pitch angle of the wind turbine blades is controlled in a closed loop manner to maintain either a con-stant generator speed for isolated power generating stations or when the generator is synchronized to the load, or con-stant generator output power or shaft torque when the gen-erator is connected to an electrical grid.  Open loop ac-celeration and deceleration schedules are provided to mini-mize blade stress and shaft torque variations during start up and shutdown transients, limiting blade angle excursions as a function of wind velocity and speed.  The schedule may be implemented either electronically or by a suitably programmed digital computer.  The gains in the speed, torque and power loop controls are scheduled as a function of average wind velocity to optimize stability and response.  An anticipatory blade angle schedule responsive to instantaneous wind velocity is added to the desired blade angle reference from the closed loop controls to minimize transient excursions in output power or generator speed resulting from wind gusts.
Patent CA-1094319-A (CA)
Title: Pot a fond amovible
Inventor: GINGRAS GILLES - EME AVENUE AP
IPC: A01G9/10
Filed: 1979-07-11
Granted: 1981-01-27
Abstract: L'on décrit un pot pour plantes dont le fond est amovible pour faciliter le dépotage. Le fond repose sur une mince bande faisant saillie à l'intérieur du contenant. Cette bande est entrecoupée de deux espaces pour la passage des bouts d'un barreau pivoté en son milieu sous le centre du fond. En tournant le barreau, ces bouts s'engagent sous la bande et bloquent le fond en place.
Patent CA-1139435-A (CA)
Inventor: ANDERSON ALBERT L
IPC: H04L7/04
Filed: 1979-07-13
Granted: 1983-01-11
Abstract: Abstract of the Disclosure Apparatus for reading data from a rotating magnetic disk whereon data has been recorded at either "single" or "double" density rate, or at both rates on different sectors of the same disk.  Density rate information is used to control the frequency of a timing signal generated by a phase locked loop (PLL).  The PLL times the reading of data according to a synchronizing signal recorded on the disk.  To accommodate the bit shift associated with such plural density data recording, the phase locked loop is provided with a dual gain low pass filter.  A high gain is used in the phase locked loop filter until lock-in is achieved, to increase acquisition range and reduce acquisition time; the gain of the loop filter is reduced upon acquisition, to provide a greater lock-in range and to reduce system sensitivity to bit shift of the data, thereby obviating need for pre-compensation of the bit recording positions.
Patent CA-1126951-A (CA)
Inventor: WIDMER COLIN F
IPC: F27B1/24
Filed: 1979-08-28
Granted: 1982-07-06
Abstract: ABSTRACT OF THE DISCLOSURE To improve the resistance to abrasion during use of cooled compon-ents, such as tuyeres and stack and bosh coolers, in furnaces a refractory or a metal with greater abrasion resistance than the metal, which is normally copper or a copper alloy, used for the main body of the component is intro-duced during casting into the cast walls of the components.  The added mate-rial may be in the form of one or more segments, or a mesh, and is located at or just below the surface at the nose of the component.  Examples of the materials which may be used are stainless steel meshes of varying thickness; and various compressed refractories capable of withstanding the thermal shock in a matrix of copper.
Patent CA-1127025-A (CA)
Inventor: BRAUN BERND
IPC: C08J7/04
Filed: 1979-10-05
Granted: 1982-07-06
Abstract: Abstract of the Disclosure An anti-thrombogenic retentive catheter with a negatively-charged surface is manufactured by providing it with a negatively-charged coating.  The coating can be applied by immersing the catheter, at least once, into pyridine or a toluol/tetrahydrofuran solution of a copolymerizate of ethy-lene with acrylic acid, or esters or salts of the copolymeri-zate and, after the last immersion, by drying the coating until no solvent is detectable.
Patent CA-1140239-A (CA)
Inventor: RENOULIN ROGER
IPC: H04L12/54
Filed: 1979-11-13
Granted: 1983-01-25
Abstract: INPUT-OUTPUT INTERFACE DEVICE BETWEEN A SWITCHING         EXCHANGE AND A PLURALITY OF TRANSMISSION CHANNELS          ABSTRACT OF THE DISCLOSURE         An input-output interface connected between a data switching exchange and a plurality of two-way data transmission channels, for controlling the data frames for each channel.  The exchange processes the data in "packets", the data being transmitted on the transmission channels in "frames", each frame containing one or several packets of data, each packet being composed of a plurality of 8-bit bytes.  Each data transmission channel is comprised of a data transmission line and a clock transmission line.  The interface is comprised of a bit stage that is comprised of a line condition scanner, a timing circuit generating an elementary operation cycle, and a plurality of memories each memory associated with a logic operator able to perform a specific operation.  Multiplexers are respectively connected to the reverse direction data transmission lines, and demultiplexers are respectively connected to forward data transmission lines.  The scanner cyclically and sequentially scans the clock transmission lines, the scanner cycle being substantially shorter than the shortest duration of a bit transmitted on the channels.  Each memory is constituted of as many words as reverse and forward channels, word addresses in each memory being assigned to the scanner position.  Each memory together with its operator performs during an elementary operation cycle, a specific operation, such as a register shift for writing a bit from a multiplexer addressed by the scanner and connected to the concerned backward line, or for reading a bit to a demultiplexer addressed by said scanner and connected to the related forward line, or an increment, or any other operation relative to a bit received from a reverse direction line or transmitted to a forward line, and, when the 8th bit of a byte is concerned, relative to that byte.  Any condition change by positive transition of any clock transmission line causes the scanner to stop which then triggers the operation of the timing circuit for an elementary operation cycle, and the addressing of the said plurality of memories.  Each memory together with its operator performs during the elementary operation cycle the specific operation assigned thereto.  At the end of the elementary operation cycle, the scanner resumes scanning.
Patent CA-1137377-A (CA)
Inventor: BENGMARK STIG
IPC: A61B19/00
Filed: 1979-12-12
Granted: 1982-12-14
Abstract: Abstract of the Disclosure A rod-shaped device for internal use in connection with operations in body cavities and comprising a non-elastically deformable, flexible member surrounded by a soft liquid absorbing material which optional-ly is enclosed in an overwrap.
Patent CA-1128654-A (CA)
Title: Antenna system with variable directivity
Inventor: TADA MASAHIRO
IPC: H01Q9/26
Filed: 1979-12-18
Granted: 1982-07-27
Abstract: ABSTRACT OF THE DISCLOSURE           An antenna system is disclosed which has a loop antenna divided into n conductive members at n pairs of divisional points where n is a positive integer not smaller than 2, n feeders connected to the n pairs of divisional points respectively, a signal feeding point, and at least one impedance element.  In this case, electrical switching circuits are connected between the n feeders and the impedance element, and an electrical control circuit is connected to the electrical switching circuits for selectively connecting the feeding point to one of the n feeders and at the same time for selectively connecting the impedance element to another of the n feeders, so that the directivity characteristic of the antenna system is variable controlled.
Patent CA-1086082-A (CA)
Inventor: BRUCE JOHN C
IPC: E02D27/52
Filed: 1980-02-06
Granted: 1980-09-23
Abstract: ABSTRACT OF THE DISCLOSURE Apparatus for constructing an island in a body of water, including a plurality of caissons and means for connecting the caissons in an end-to-end configuration to form a ring.  Once the caissons have been connected together to form a ring and ballasted to set the caissons upon the bottom of the body of water, sufficient fill material is placed inside the ring of caissons to construct an island in the body of water.
Patent CA-1148888-A (CA)
Inventor: GROSS BENJAMIN
IPC: B01J21/20
Filed: 1980-06-05
Granted: 1983-06-28
Abstract: ABSTRACT            Conversion of carbon monoxide within the regenerator of a cracking unit used to regenerate spent catalysts from the catalytic cracking of gas oil is enhanced by the addition of controlled amounts of copper chromite, cobalt chromite, or mixtures thereof.  Conversion of carbon monoxide in the regenerator is accomplished while maintaining the efficiency of the cracking reaction at high levels.            The amount of chromite oxidation catalyst is maintained below 500 ppm based on total cracking catalyst inventory.
Patent CA-1141261-A (CA)
Inventor: KEENE DEREK K
IPC: F15B1/26
Filed: 1980-06-13
Granted: 1983-02-15
Abstract: ABSTRACT          A hydraulic fluid storage tank for an industrial vehicle.  A small surge tank (44) is mounted on top of a main tank (10) and communincates with the main tank via a drain back hole (49) formed in the top of the main tank. A first breather tube (46), having one end opening within the surge tank, extends directly into the main tank.  A second breather tube (48), having one end opening within the surge tank, enters the main tank through the drain back hole, extends along the top of the tank, and opens into the tank at a point substantially rearward of the first vent tube.  If, due to movement of the vehicle, one of the breather tubes becomes filled with oil, the other will still function.  Oil which momentarily floods one of the breather tubes enters the surge tank and drains back to the main tank via the drain back hole.
Patent CA-1145681-A (CA)
Inventor: MILLER LAURENCE L
IPC: B62D5/09
Filed: 1980-06-25
Granted: 1983-05-03
Abstract: Abstract A controller for controlling fluid flow from a source to a motor, such as the steering motor of a motor vehicle. The controller includes a metering section and a control valve section comprising a stacked assembly of plate valve members which control flow and, along with the metering section, define the outer periphery of the controller, and minimize the need for complex cast housing members.  The controller is compact and yet is constructed to respond to an input signal from an input shaft to direct needed flow from the source to the primary steering motor, and excess flow to an auxiliary motor.  The controller is also characterized by a unique spring centering mechanism which applies a spring centering force to the assembly of plate valve members.  Additionally, the controller is characterized by a special seal arrangement for resisting leakage of high pressure fluid about the input shaft, and by structure for forming pressure dams to resisting leakage of metered fluid.
Patent CA-1130155-A (CA)
Title: Method of and apparatus for improving operation  of a diesel engine at light loads
Inventor: FRIDDELL JAMES F
IPC: F02B3/06
Filed: 1980-09-16
Granted: 1982-08-24
Abstract: METHOD OF AND APPARATUS FOR  IMPROVING OPERATION OF A DIESEL ENGINE AT LIGHT LOADS                          Abstract Improving the operation of a diesel engine at light loads in which the engine includes a plurality of cylinders, a piston in each cylinder, a fuel injector for each cylinder, an air blower for supplying air to the cylinders and an exhaust manifold.  A valve is pivotally positioned in the exhaust manifold, and biasing means is connected to the valve acting to bias the valve towards a closed position.  The modulating valve restricts the flow from the manifold at light loads thereby maintaining a back pressure on the exhaust at lighter loads for improving engine performance, but opens wider by exhaust flow from the manifold at higher loads.  An adjustable stop may be positioned in the path of travel of the valve preventing the valve from entirely closing.  The valve may be a butterfly valve pivotally supported off-center and the biasing means may include a weight connected to a lever arm connected to the pivot supporting the valve.  Improved fuel injectors provide less fuel than normal injectors at lighter loads.
Patent CA-1147796-A (CA)
Title: Method for manufacturing sealed-beam type  electric bulb
Inventor: NIEDA YASUHIRO
IPC: F21V19/00
Filed: 1980-09-17
Granted: 1983-06-07
Abstract: Abstract of the Disclosure A method of manufacturing a sealed-beam type electric bulb comprises steps of inserting external lead wires of a halogen lamp having a filament inside into two through holes formed in a plastic base plate, filling said through holes with a flowable adhesive, shifting said halogen lamp so that said filament is positioned at a predetermined position, curing said adhesive to bond said external lead wires to said plastic base plate after shifting said halogen lamp thereby fixing the halogen lamp to said plastic base plate and inserting said plastic base plate with said halogen lamp mounted thereon into an opening formed at the rear end portion of a plastic reflector, and fixing said plastic base plate at the rear end of said reflector, thereby positioning said halogen lamp within said reflector,
Patent CA-1151126-A (CA)
Inventor: SHANKS BRUCE E
IPC: B60Q1/00
Filed: 1980-09-25
Granted: 1983-08-02
Abstract: A SNAP IN COUPLING ASSEMBLY FOR A VEHICLE HEADLAMP      HAVING A TRIM RIM INTEGRAL THEREWITH                 ABSTRACT OF THE DISCLOSURE      This invention relates to polymer sealed beam headlamp units having rims integral therewith, and more particularly to a unitary coupling assembly for securing these headlamp units to vehicles.  The assembly includes an integrally rimmed headlamp having a plurality of couplers secured thereto.  The couplers are intergrally molded with the rim or attached thereto. The couplers are lockingly secured to each other and about point for pivotal movement, which engage the surfaces of complementary couplers secured to a vehicle. The couplers are lockingly secured to each other and form a coupling for attaching the lamp to a vehicle. In a preferred embodiment the assembly employs adjustable couplers for the adjustable and/or preaimed attachement of a headlamp to a vehicle.
Patent CA-1141750-A (CA)
Inventor: SCHULZE PAUL-EBERHARD
IPC: C07J1/00
Filed: 1980-12-09
Granted: 1983-02-22
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides a process for the preparation of an 11-keto steroid from a 9.alpha.-halo-11.beta.-hydroxy steroid,  in which the reactant steroid is heated, in an inert, aprotic, high-boiling solvent to a temperature in the range 180-350°C.  The process of the present invention has the advantage that it has an exceedingly simple manipulation.  The compound is heated in the solvent and then again separated from the solvent after the reaction.
Patent CA-1146215-A (CA)
Inventor: KENDALL DONALD S
IPC: B29C48/09
Filed: 1981-02-04
Granted: 1983-05-10
Abstract: APPARATUS AND METHOD FOR BLOW MOLDING       MOTIVE POWER BATTERY CASES                     ABSTRACT OF THE DISCLOSURE           A motive power battery casing is blow molded in an oblong configuration of rectangular cross section.  The die is notched so as to create longitudinal ribs of relatively greater thickness of the molding material in a generally cylindrical parison.  The casing mold is vented in the bottom at its corners to assure full development of the casing corners.  The casing is formed with relatively thin side walls and a relatively thicker collar of the molding material near its top in order to provide sufficient strength for heat sealing at the top.
Patent CA-1155136-A (CA)
Inventor: MEYER WILLY
IPC: C07C235/24
Filed: 1981-02-10
Granted: 1983-10-11
Abstract: Abstract Novel phenoxyphenoxycarboxylic acid derivatives with herbicidal and plant growth-regulating properties and methods of obtaining them are disclosed.  These derivatives have the formula I                                          (i) wherein A is a bridge member -CH2Ch2-, -CH=CH- or -COCH2-, is an ester, thioester or amido radical as defined in the specification, Rl is hydrogen or Cl-C3alkyl,  X is halogen, cyano or nitro, and Y is halogen, cyano or nitro.  These compounds are suitable e.g. for selectively controlling weeds in crops of useful plants, such as cereals, rice and soybeans.
Patent CA-1160083-A (CA)
Inventor: STATT WILLIAM L
IPC: G03G15/041
Filed: 1981-05-13
Granted: 1984-01-10
Abstract: ABSTRACT         A multimagnification mode optical system for projecting an image from an object plane to an image plane including a viewing platen, a lens, at least one reflecting surface on each of the object side and image side of the lens, the lens being mounted to move from a first position providing a first magnification to a second position providing a second magnification by simultaneously rotating and translating about a sta-tionary lens shaft from said first position to said second position whereby the optical axis of the lens is also altered.  In a specific application of the optical system the corner registration of the image at the image plane on a photosensitive surface mounted on a rotatable drum is maintained at both the first and second lens position.
Patent CA-1149847-A (CA)
Title: Power circuit breaker with opening and closing  mechanisms
Inventor: CROOKSTON RONALD W
IPC: H01H39/00
Filed: 1981-06-24
Granted: 1983-07-12
Abstract: 47,576 ABSTRACT OF THE DISCLOSURE A circuit breaker  characterized by a pair of separable contacts, operating means for opening the con-tacts  and comprising a  cylinder and  piston mechanism, closing means for closing the contacts and comprising a second cylinder and piston assembly operatively connected to the contacts.
Patent CA-1165923-A (CA)
Inventor: BULLMAN ALLAN R
IPC: C08L33/04
Filed: 1981-06-26
Granted: 1984-04-17
Abstract: 12,765 WATER-RESISTANT LATEX SEALANTS ABSTRACT OF THE DISCLOSURE       Acrylic latex sealants are rendered water-resistant and have improved wet adhesion to a variety of substrates by incorporating hydrophobic resins and an aminosilane hydrolyzate therein.               S P E C I F I C A T I O N   1.
Patent CA-1148000-A (CA)
Inventor: ROGERS PHILIP J
IPC: G02B17/08
Filed: 1981-06-26
Granted: 1983-06-14
Abstract: "BIOCULAR VIEWING OPTICAL APPARATUS"  ABSTRACT OF THE DISCLOSURE         Optical apparatus for biocular viewing of relatively low cost and light weight comprises a solid Cassegrain con-figuration in a solid meniscus element having a negative lens element cemented to its convex face and an associated corrector lens element which provide a magnified collimated image of an object for viewing by a pair of telescopes hav-ing light folding means to provide an exit pupil separation suitable for two eye viewing.  At least some of the lens elements may be of plastics material and aspheric surfaces may be employed.  The apparatus is particularly useful for night vision goggles having a single image intensifier tube.
Patent CA-1176546-A (CA)
Title: Inhibited annealing of ferrous metals containing chromium
Inventor: SHAY ROBERT HARRISON
IPC: C21D1/48
Filed: 1981-08-04
Granted: 1984-10-23
Abstract: ABSTRACT A process for limiting the absorption of nitrogen by ferrous metal containing chromium as an alloying additive (e.g. stainless steel) during high temperature annealing in an atmosphere of nitrogen and hydrogen by controlled additions of an inhibitor selected from the group consisting of water vapor, oxygen, nitrous oxide, carbon dioxide or mixtures thereof to the atmosphere while controlling the dew point of the furnace atmosphere and/or the ratio of the partial pressure of the inhibitor to the partial pressure of the hydrogen. 24,792-P
Patent CA-1156961-A (CA)
Inventor: DAVIDSON MATS T
IPC: B65G17/38
Filed: 1981-09-14
Granted: 1983-11-15
Abstract: ABSTRACT OF THE DISCLOSURE     A device for use with conveyor tracks,     comprising a continuous drive element (2), arranged so as to be moved by drive device (30) on a track with steering mechanisms for the drive element and load-carrying elements moving along the track, they being equipped with attachment devices (28) to the driving element in such a manner that they can accompany the same in their movements for the transport of materials.   Drive element (2) has the shape of a band with corrugations, between which are constructed transverse grooves.   The material in the drive element is hard and resilient and is preferably composed of a stiff plastic material and is dimensioned in such a way that the corrugations and hence the grooves in general retain their shape during the intended drive resistance and the intended load under the effect of the pointwise applying driving elements (30).   At the same time, the corrugated shape of the drive element and its resilience are so designed that, in spite of its relative stiffness, it can be given a continuous curvature in a number of planes or twisting from the effect of the steering mechanisms.
Patent CA-1159556-A (CA)
Inventor: USUI AKIRA
IPC: H03D1/22
Filed: 1981-09-29
Granted: 1983-12-27
Abstract: TITLE OF THE INVENTION:          Television Video Signal Detector ABSTRACT OF THE DISCLOSURE:           The video IF signal is applied to a carrier amplifier so that the signal is amplified and limited in amplitude and consequently only the carrier can be derived.          The video IF signal is also amplified by a linear amplifier and compensated by a phase compensation circuit in such a way that the relative phase difference between the outputs from the carrier amplifier and linear amplifier can be eliminated.  The outputs from the carrier amplifier and linear amplifier are applied to a synchronous detector, whereby the television video signal without any distortion can be derived.
Patent CA-1166947-A (CA)
Title: Adjustable support devices for swivel chairs
Inventor: FRENCH JOHN A W
IPC: A47C3/24
Filed: 1981-10-15
Granted: 1984-05-08
Abstract: ABSTRACT    ADJUSTABLE SUPPORT DEVICES FOR SWIVEL CHAIRS         An adjustable support device for a swivel chair, comprises a swivel tube supported from a vertical rotatable screw by a nut.  When the chair is unoccupied a spring-loaded friction clutch responsive to the weight acting on the screw restrains the screw against rotation so that the seat height can be adjusted by rotating the swivel tube which is attached to the seat part of the chair.  When the chair is occupied, the clutch is released and the screw is freed for rotation with the tube so that swivelling movements of the seat part do not result in height adjustment, a continuous, but limited, frictional drag being applied between the screw and the nut to ensure that the screw and nut rotate as a unit when the clutch is released.