baber/WOPTO huggingface dataset:
Patent CA-1163861-A (CA)
Inventor: VAN OS CORNELIS J
IPC: F03C1/053
Filed: 1981-01-08
Granted: 1984-03-20
Abstract: Abstract of the disclosure:          A hydraulic piston motor capable of delivering a high torque to an output shaft while running at a uniform low speed.          The motor has a rotor mounted on the shaft. The rotor has circumferential cams and is surrounded by a housing contain-ing cylinders spaced radially symmetrically around the rotor.          The cylinders contain pistons including parts adapted to co-operate with the circumferential surface of the rotor. The rotor has such a profile that the sum of the derivatives of the curve S of the working strokes of all pistons during one revolution is of equal magnitude at every moment.
Patent CA-1151563-A (CA)
Inventor: HUNT MITCHELL ROUTE P O BOX BO
IPC: G01F15/18
Filed: 1981-03-23
Granted: 1983-08-09
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed is an improved meter installation for a deep under-ground pipeline employing a meter pit.  Pre-coiled, flexible tubing lengths are coupled between the ends of the pipeline in the pit and a flowmeter which is also housed within the pit.  The meter is vertically movable within the pit.  As the meter is raised, the pre-coiled tubing uncoils or expands, and as the meter is lowered, the pre-coiled tubing re-coils or contracts.  The meter installation of this invention is particularly useful for water metering in pipelines laid a substantial depth below ground level -- as, for example, in cold plains states. The present system provides a meter reader, repairman, or the like, with ready access to the meter without the necessity of physically entering the pit.  The meter is easily raised to ground level without interrupting the flow of liquid therethrough.
Patent CA-1175661-A (CA)
Inventor: PERFECT FREDERICK H
IPC: C22C1/02
Filed: 1981-04-13
Granted: 1984-10-09
Abstract: Abstract of the Disclosure:      A process is provided for the aluminothermic production of low nitrogen containing chromium and chromium alloys,said chromium alloys comprising about 80% chromium, about 20% nickel and less than 0.005% nitrogen, said alloys being especially desirable for use as master alloys in production of super alloys wherelevels of nitrogen imparted by chromium alloying elements are critical.
Patent CA-1157392-A (CA)
Inventor: HARDISON LESLIE C
IPC: C02F1/28
Filed: 1981-05-08
Granted: 1983-11-22
Abstract: Abstract A bed of spent solid adsorbent material previously used for removal of mixed solvent vapors from an air stream is steam stripped; the mixture of steam and vaporized solvent is passed through a condenser; and the resultant liquid condensate is passed to a decanter where the condensate separates into an upper layer of water insoluble solvent components and a bottom layer of water containing the water soluble solvent components.  The upper layer is withdrawn for reuse, and the decanter bottoms stream is passed through another bed of solid adsorbent material which removes the organic solvent so as to produce substantially pure water suitable for discharge or reuse.  After a period of use this adsorbent bed is also regenerated by steam stripping, and the effluent steam and solvent vapors are recycled to the same condenser serving the air treating adsorbent bed so that a combined condensate is passed to the decanter.
Patent CA-1177933-A (CA)
Inventor: BERKELMANS NICOLAAS M
IPC: B41J3/26
Filed: 1981-06-12
Granted: 1984-11-13
Abstract: Abstract of the Disclosure This application relates to a word typewriter for the display of written information, whereby on the keyboard in the middle a group of keys for the vowels and on either side thereof in image position a same group of keys is mounted for a limited number of consonants.  The lower row of these letter keys is destined for the thumbs, whereby the positioning of the keys is selected such that by the simul-taneous operation of two keys each time failing letters are formed, and the letter keys may also be used for signs or digits.  The typewriter is characterized in that for the display on the one side of letters and on the other side of signs or digits a shipt key is provided, and that all keys are coupled to an electronic decoding and processing unit, which decodes the signals from the keys and subsequently supplies signals, representing standard letters, signs or digits, whereby the combination of two simultaneously operated letter keys, which in form or sound recall the image of a failing letter, is processed into the standard display of said letter.
Patent CA-1200642-A (CA)
Inventor: SONODA TAKESHI
IPC: B01D69/08
Filed: 1981-07-02
Granted: 1986-02-11
Abstract: ABSTRACT OF THE DISCLOSURE         A membrane for microfiltration, ultrafiltration or dialysis comprises a methyl methacrylate copolymer containing about 0.5 to 10 mol % of a monomer having sulfonate groups, and a methyl methacrylate copolymer containing about 0.5 to 10 mol % of a monomer having quaternary nitrogen-containing groups.  It is manufactured by mixing those copolymers, dissolving the mixture in a solvent such as dimethylsulfoxide or dimethylformamide, and form-ing a membrane from a solution of the copolymers by casting or spinning.  The membrane is particularly suitable for use in the purification of blood, and its most preferable form is hollow fibers.  A method of preparing hollow fibers comprises extruding the copolymer solution through a spinneret having an annular orifice defined by a thin central tube while a liquid or gas is be-ing injected into the central tube, and coagulating the extrusion product.
Patent CA-1126235-A (CA)
Inventor: GRISWOLD JAMES L
IPC: E02D17/04
Filed: 1981-07-06
Granted: 1982-06-22
Abstract: ABSTRACT OF DISCLOSURE This invention relates to a trench shoring assembly which includes a pair of spaced-apart side walls for vertical disposition within a trench. Spreader pipes and spreader collars interconnect the side walls and allow limited pivotal movement between the side walls.  Each side wall includes outer and inner metal plates connected to a horizontally extending hollow top beam which extends longitudinally along the top of the side wall, two intermediate beams parallel the hollow metal beam and a bottom beam.  A hardwood insert is disposed within the top beam to prevent the collapse of the hollow metal beam. A number of hollow beams extend perpendicularly to the horizontal beams and ribbed members extend perpendicularly to the horizontal beams.  The side walls of the assembly have a tapered bottom portion which defines a triangularly shaped pointed lower extremity extending between the ends of the bottom portion. A metallic bar is disposed at the pointed lower extremity and extends between the ends of the bottom portion and protects the bottom of the side wall against abrasion.  A U-shaped member is welded to the main frame, and, in turn, a spreader collar is welded to the U-shaped member so that a force applied to the spreader collar is transferred directly to the main frame.  Each spreader pipe spaces the side walls apart between two spreader collars to which the spreader pipe is attached by spreader pins.  Lifting rings are slidably attached to the spreader pipes for lifting the assembly.  A plurality of flanges extend from a spreader pipe and are connected by locking pins to mating flanges which extend from another spreader pipe of another vertically stacked trench shoring assembly.
Patent CA-1221686-A (CA)
Inventor: REAP JAMES J
IPC: C07D491/04
Filed: 1981-07-09
Granted: 1987-05-12
Abstract: Title           BA-8397-A         Herbicidal o-Alkylsulfonyloxy- and o-Alkylsulfonylaminobenzenesulfonamides Abstract of the Disclosure N-(Heterocycliccarbamoyl)arylsulfonamides, such as N-[(4,6-dimethoxypyrimidin-2-yl)amino-carbonyl]-2-hydroxybenzenesulfonamide, methane-sulfonate are useful for plant growth retardation, brush control and weed control in crops.
Patent CA-1172574-A (CA)
Title: Gain control circuit
Inventor: KATAKURA MASAYUKI
IPC: H03G3/30
Filed: 1981-07-20
Granted: 1984-08-14
Abstract: Abstract of the Disclosure A gain control circuit particularly suitable for compressing or expanding the dynamic range of an audio signal, and thereby reducing noise produced during recording and playback comprises an input circuit receiving an input signal, first and second differential amplifiers each supplied from the input circuit with a signal derived from the input signal, with the amplifying elements of each being complementary to the amplifying elements of the other, a first pair of transistors having their emitters coupled to the output of the first differential amplifier and a second pair of transistors having their emitters coupled to the output of the second differential amplifier.  The transistors of each pair are of the same conductivity type as the amplifying elements of the associated differential amplifier.  The collectors of the transistors of each pair are jointed respectively to the collectors of the corresponding transistors of the other pair.          Control voltage input terminals are respectively connected to one transistor of each pair and an opposite transistor of the other pair.  A feedback signal is applied from the joined collectors of the one transistors to the input circuit, and an output current is applied from the joined collectors of the other transistors to an output stage which can include a load resistor or a current-to-voltage converter circuit.  This arrangement prevents variation in total static current when gain is varied, thereby achieving a superior signal-to-noise characteristic.
Patent CA-1166662-A (CA)
Inventor: NAESINEVA MATTI V
IPC: A63C1/36
Filed: 1981-07-31
Granted: 1984-05-01
Abstract: ABSTRACT OF THE DISCLOSURE:           A skate, consisting of a shoe and a blade affixed to the sole thereof, said blade consisting of a gliding rail on both sides of which there are auxiliary gliding rails parallel to the gliding rail and of which the gliding surfaces are located higher than the gliding surface of the gliding rail.  The angles between the gliding rail and the auxiliary gliding rails are about 60°.
Patent CA-1187161-A (CA)
Inventor: ABTS LEIGH R
IPC: G01P5/08
Filed: 1981-09-14
Granted: 1985-05-14
Abstract: ABSTRACT   Disclosed is an ultrasonic transmitter-receiver which can be made in the form of an electrically shielded cylindrical unit which can be inserted into a hole in the sidewall of an existing pipeline so as to direct ultrasonic energy across the flow therethrough.  The unit can include a concave lens below the crystal which produces the ultrasonic beam for three-dimensional focusing.  The unit can be connected to a pipeline without the need for replacing a portion of the pipeline to ensure proper sound impedance matching.
Patent CA-1168726-A (CA)
Inventor: SANVILLE W WOODWARD
IPC: B61L1/08
Filed: 1981-09-14
Granted: 1984-06-05
Abstract: RAILROAD CAR WHEEL DETECTOR            Abstract of the Disclosure A method is provided for determining whether an output signal from a magnetic railway wheel detector is produced by the actual passage of a wheel over the transducer.  The output signal is compared with an amplitude threshold value and the time period between the zero crossing point and the time at which the signal attains amplitude threshold is compared with a time threshold level.          The thresholds are set as a function of the speed of the train.  Unless the thresholds are exceeded the output signal is disregarded.
Patent CA-1159408-A (CA)
Inventor: PATEL HARISH A
IPC: A47B81/00
Filed: 1981-09-29
Granted: 1983-12-27
Abstract: SPONGE COLLECTION DEVICE     ABSTRACT OF THE DISCLOSURE         A sponge collection device comprising, a backing sheet of flexible material, and a plurality of pockets progressively disposed on the backing sheet.  The pockets comprise a flap of flexible material having side portions of the flap being joined to the backing sheet, and a lower portion of the flap being joined to the backing sheet intermediate the joined side portions of the flap.  An upper edge of the flap defines an opening inter-mediate the flap and backing sheet to receive sponges.  A divid-ing portion of the flap is permanently joined to the backing sheet, with the dividing portion comprising a region of the flap located generally centrally between the side portions of the flap, and located a distance slightly above the lower portion of the flap.
Patent CA-1153500-A (CA)
Title: Process for the production of inorganic-organic  compositions
Inventor: ILIOPULOS MILTIADIS I
IPC: C08G18/38
Filed: 1981-10-06
Granted: 1983-09-06
Abstract: ABSTRACT OF THE DISCLOSURE      The instant invention is directed to a process for the production of an inorganic-organic foam composi-tion comprising reacting an organic, nonionic hydro-philic polyisocyanate with an aqueous alkali metal silicate in the presence of a catalyst and a blowing agent, the improvement wherein said aqueous alkali metal silicate contains from 0.1 to 15% by weight, based on the weight of the aqueous alkali metal silicate, of a compound of the formula:                    wherein A is selected from the group consisting of N, P and S, wherein R, R', R" and R''' may be the same or different and are selected from the group consisting of allyl, vinyl, Cl to C17 alkyl or mono- or polyhydroxy sub-stituted alkyl, C6 to C10 aryl or mono- or polyhydroxy substituted aryl, C7 to C22 aralkyl or mono- or poly-hydroxy substituted aralkyl, and C7 to C22 alkaryl or mono- or polyhydroxy substituted alkaryl, wherein x is 0 when A is S, wherein x is 1 when A is N or P, and wherein B is selected from the group consisting of OH, halogen and OR'''' wherein R'''' represents a C1 to C12 alkyl, with the proviso that when A is S, B is not OR''''.
Patent CA-1182690-A (CA)
Inventor: CORNETT R ORIN
IPC: G02C11/06
Filed: 1981-10-15
Granted: 1985-02-19
Abstract: METHOD AND APPARATUS FOR AUTOMATIC CUING             ABSTRACT OF THE DISCLOSURE        A method and apparatus for providing cues to a hearing impaired or deaf person to aid in lipreading in which phonemes are detected and analyzed to project an image into the field of view of the hearing impaired or deaf person identifying one of a plurality of groups of consonants and vowels together defining a syllable.  More particularly, one of a plurality of symbols, each identifying a group of consonants is projected in a mode identifying a group of vowels t for example to one of four quadrants.  The apparatus is preferably mounted on an eyeglass frame.
Patent CA-1165069-A (CA)
Inventor: CARDELL MAX L
IPC: D01D11/04
Filed: 1981-10-20
Granted: 1984-04-10
Abstract: ABSTRACT OF THE DISCLOSURE         A guide encloses a group of travelling filaments arranged in a pattern forming a main longitudinal axis.  The guide comprises a carrier movable toward and away from the filament group.  A plurality of relatively movable members are mounted on the carrier for movement between open and closed positions.  Those members form a through-passage for the filament group in the closed position.  An actuating mechanism is operatively connect-ed to the carrier and members for extending the carrier toward the filament group, and closing the members around the filaments to converge the filaments. Thereafter, the carrier is retracted to a position where a longitudinal axis of the through-passage is substantially aligned with the main longitudinal axis formed by the filament group.
Patent CA-1165631-A (CA)
Title: Combination fertilizer applicator and tillage implement with adjustable sweep assemblies
Inventor: DIETRICH WILLIAM J SR
IPC: A01B49/06
Filed: 1981-10-27
Granted: 1984-04-17
Abstract: Abstract of the Disclosure Apparatus for combining light tillage and application of liquid fertilizer in a single implement includes a frame having at least a forward and a rear mounting bar. A plurality of sweep assemblies are mounted to the forward mounting bar. Anhydrous fertilizer applicator knives are mounted to the rear bar and located in strips left untilled by the sweeps. A finishing harrow is also mounted to the rear bar behind the knives to level the soil. Each sweep assembly includes a forward bar or frame element to which a plurality of laterally spaced sweeps are mounted in staggered relation. Mounting members having vertically elongated slots mount the sweep assemblies to the forward bar of the frame while permitting them to be adjusted vertically and independent of the depth of the applicator knives.
Patent CA-1177150-A (CA)
Inventor: BOTEZ DAN
IPC: H01S5/00
Filed: 1981-12-14
Granted: 1984-10-30
Abstract: RCA 76,328 POSITIVE INDEX LATERAL WAVEGUIDE SEMICONDUCTOR LASER              ABSTRACT OF THE DISCLOSURE The invention is an improved semiconductor laser diode which includes a substrate having a pair of substantially parallel grooves in a major surface thereof with a land therebetween, a first confinement layer overlying the major surface of the substrate and the surfaces of the grooves; a guide layer overlying the first confinement layer, an active layer overlying the guide layer and the second confinement layer overlying the active layer. The improvement is a guide layer which tapers in increasing thickness from that portion of the layer over the land and whose surface, contacting the active layer, is concave in shape, and an active layer which is thickest over the land between the grooves and tapers in decreasing thickness in the lateral direction. This structure provides a positive lateral waveguide index for light propagating in the active and guide layers resulting in a reduced threshold current for lasing action and a reduced spon-taneous emission near threshold.
Patent CA-1179169-A (CA)
Title: Continuous production of polished galvanized tubing
Inventor: HIJUELOS HUMBERTO A
IPC: B21C37/09
Filed: 1982-01-28
Granted: 1984-12-11
Abstract: CONTINUOUS PRODUCTION OF POLISHED AND BUFFED TUBING     ABSTRACT Apparatus is provided for the continuous production of tubing from steel strip.  The formed tubing is continuously advanced along a straight-line path through polishing and buffing units to provide a smooth lustrous finish to the tubing, and through a coating chamber in which the tubing is coated with a polymer coating to prevent tarnishing of the lustrous polished surface.  The finished tubing has a surface which is suitable for decorative applications such as furniture or the like.
Patent CA-1183408-A (CA)
Title: Appareil de signalisation individuelle, a  fonctionnement automatique ou manuel destine a etre  place sur un vehicule
Inventor: COUSTOLS CHARLES J A
IPC: B60Q1/52
Filed: 1982-02-04
Granted: 1985-03-05
Abstract: Appareil de signalisation individuelle, à fonctionnement automatique ou manuel destiné à être placé sur un véhicule. COUSTOLS Charles, Jean, Adrien. L'invention concerne un appareil de signalisation (II) destiné à être placé sur un véhicule et constitué d'un boîtier 1 contenant un produit pouvant être évacué sous l'action de moyens de commande pour se dégager sous la forme d'un nuage de couleur vive destiné à la signalisation. Cet appareil est remarquable en ce que d'une part, le susdit produit est un fumigène de couleur orange retenu dans une cartouche interchangeable 2 et d'autre part, les susdits moyens de commande d'évacuation dudit fumigène sont constitués par un allumeur 4 associé à la cartouche 2 et dont le système de percussion est déclenché mécaniquement sous l'effet du déplacement (flèche F3) d'une masse mobile 12 guidée dans une gaine 13 ou sous l'effet d'une traction exercée (flèche F1) par un câble 7 relié à son extrémité opposée à un organe de préhension manuelle placé à portée de main du conducteur du véhicule.
Patent CA-1166709-A (CA)
Inventor: NAKAJIMA TOMOO
IPC: H01F27/32
Filed: 1982-02-15
Granted: 1984-05-01
Abstract: Abstract of the Disclosure A transformer wherein an insulator interposed between respective primary and secondary coils comprises a corrugated insulating base having a width larger than the coil winding width, that is, the width of the winding part of coil bobbin and a plastic insulating member having substantially the same width as the coil winding width.          When such insulator is wound on the primary coil, the corrugated insulating base is bent at both side edges to be L-shaped to intimately fit to the inner surfaces of flanges of the coil bobbin so as to positively prevent coil wire at each end portion of the coil from dropping out of the alignment of respective coil turns.
Patent CA-1206067-A (CA)
Inventor: TALDO TERRY J
IPC: A61B19/00
Filed: 1982-03-26
Granted: 1986-06-17
Abstract: ABSTRACT      A portable lavage device comprising a moveable tank for holding a cleansing liquid, a pump coupled to the tank for circulating the cleansing liquid under a pressure which varies from a maximum to a minimum and spaced nozzles coupled to the circulating pump and arranged to spray the cleansing liquid under varying pressure against an item to be cleaned.
Patent CA-1168903-A (CA)
Inventor: DAVE BAKUL
IPC: G01F23/02
Filed: 1982-03-30
Granted: 1984-06-12
Abstract: - 10 -                  Case  4395 A METHOD OF ALIGNING A WATER LEVEL INDICATOR HAVING A REMOTE AND A LOCAL READOUT W UT DISPLAY              ABSTRACT OF THE DISCLOSURE       A water level indicating apparatus (10) has an optical system (22) for establishing an optical signal indicative of water level which signal is split by a beam splitter (18) to transmit transmit the majority of the optical signal to a fiber optic cable (16) and to reflect a part of the signal to a proximately located (13) glass diffuser (14).  The end 24 of the cable (16) is reflected in the beam splitter (18) to form a : reflection (24') which varies in intensity as the end (24) of the cable (16) is moved with the brightest reflection (24') appearing when the lamp (26) of the optical system 22 is in line with end (24) of the cable (16).
Patent CA-1166734-A (CA)
Inventor: RICHARDS JAMES
IPC: H01S3/08
Filed: 1982-03-30
Granted: 1984-05-01
Abstract: ABSTRACT   An unpolarised electro-optically Q-switched laser using a laser rod, a prism and a Pockels cell between a pair of mirrors wherein the prism is selected to give a low-angle walk-off arranged that when a quarter wave length voltage is applied to the Pockels cell the first pass will be cancelled by an equal and opposite walk-off during the return path.
Patent CA-1183195-A (CA)
Inventor: BIJMA JAN
IPC: H01J29/50
Filed: 1982-05-19
Granted: 1985-02-26
Abstract: ABSTRACT:     Of an electron gun system for a colour display tube with which three electron beams situated in one plane are generated, the second electrode is formed by a beaker-shaped portion, in which a first plate is connected to the bottom portion and a second plate is connected to the open end. The apertures for the outermost electron beams in the beaker-shaped portion are situated eccentrically with respect to the apertures for the outermost electron beams in the first electrode. The apertures for the outermost electron beams in the first plate and the second plate, respectively are situated eccentrically with respect to the apertures in the beaker-shaped portion. As a result of this, an asymmetric lens field is generated in the second electrode for the two outermost electron beams a the area of the cross-over, which field deflect the outer-most electron beams in such manner that three electron beams converge on the display screen. By deflecting the outermost electron beams substantially at the area of the cross-over the convergence of the electron beams is sub-stantially independent of variations in the potential of the second electrode and the first focusing electrode.          The axes of the apertures for the outermost electron beams in the focusing electrodes are situated substantially on the axis of the outermost electron beams already deflected over the convergence angle in the second electrode. As a result of this symmetrical focusing lens fields are wormed so that in the case of variations in the potential of the focusing electrodes only the focusing is influenced with-out influencing the convergence of the electron beams.