baber/WOPTO huggingface dataset:
Patent CA-1069208-A (CA)
Inventor: PEARCE PHILLIP W
IPC: G06M7/06
Filed: 1976-08-04
Granted: 1980-01-01
Abstract: ABSTRACT OF THE DISCLOSURE             A multiple sheet detecting apparatus is disclosed which includes an ultrasonic transducer responsive to a time varying electrical signal to produce a time varying ultra-sonic signal which impinges upon   sheet(s) at a position along a predetermined path.  A second ultrasonic transducer receives a portion of the ultrasonic wave which passes through such implinged upon  sheet(s) for producing a second time varying signal.  Comparison means are then provided which compare the phase relationships between the time varying electrical signals and produce an indication when such phase relationship indicates a multiple sheet feed condition has occurred.
Patent CA-1079085-A (CA)
Inventor: MCINTYRE WILLIAM H
IPC: G01N33/00
Filed: 1976-08-13
Granted: 1980-06-10
Abstract: TECHNIQUE FOR IN SITU CALIBRATION         OF A GAS DETECTOR                  ABSTRACT OF THE DISCLOSURE            In a gas measuring probe assembly having a gas. sensing device located within a tubular housing positioned within a gas environment to be monitored, a tubular calibration gas flow pattern is established within the tubular housing substantially parallel to the walls of the tubular housing to sweep the monitored gas environment from the tubular housing and expose the gas sensing device to a calibration gas mixture substantially free of the monitored gas environment.  This technique permits the in situ calibration of gas detectors, and is especially useful in calibrating stack gas monitoring probes.
Patent CA-1051850-A (CA)
Inventor: TORRES MARTINEZ MANUEL
IPC: B65H19/14
Filed: 1976-09-23
Granted: 1979-04-03
Abstract: ABSTRACT OF THE DISCLOSURE:     This invention relates to an improvement to system for automatic joining between successive reels of paper strip being dispensed in a continuous manner which is particularly applicable to feeding systems for manufacturing machines which consume paper.          The improved systems according to the invention comprise  two sets of rollers, blades for shearing, and parts for gripping and joining the strips of paper.  The systems also comprises a paper storing arrangement comprising one or more forward rollers over which the strip is threaded and led rearwards again, and a travelling rear roller, over whose surface the strip runs and thence goes forwards once more towards the machine where it is being consumed.  The travelling rear roller is arranged so that it can travel forwards in the same direction as the strip being dispensed, and this it does  whilst the reels are being changed over, so that it pays out some of the paper kept in store until the fresh reel has started to revolve at the required speed to keep pace with the rate of demand.  The improvement covered by the invention consists in that the roller at the forward end of the paper storing arrangement is mounted in a floating manner, and in constant balance between the pulling force resulting from the tension in the strip,  and the thrust being applied by a number of adjustable compressed air operated cylinders.  Hence the roller moves to and fro  whenever the tension in the strip of paper alters, and at all times it does so in the direction required to restore the balance between these two forces.
Patent CA-1048201-A (CA)
Inventor: HUEIL JOSEPH C
IPC: A61B17/068
Filed: 1976-11-02
Granted: 1979-02-13
Abstract: ABSTRACT OF THE DISCLOSURE    A staple cartridge and feed means for use with a surgical stapling instrument of the type having an anvil about which a staple is formed during emplacement thereof in the skin or fascia of a patient.  The cartridge comprises a body having a vertical staple feeding track adapted to hold a stack of staples and a separate vertical staple forming track with a staple former reciprocable therein by the surgical stapling instrument.  The staple forming track and the staple feeding track are in parallel relationship separated by a divider wall.  A window, defined by the cartridge body and the divider wall, provides a horizontal path between the staple feeding track and the staple forming track and is so sized as to permit the passage therethrough of a single staple from the bottom of the staple stack.  Horizontal feeder means normally prevent passage of the bottom most staple from the stack through the window into the staple driving track.  The horizontal feeder means, actuable by the surgical stapling instrument, positively shifts the bottommost staple of the stack from the staple feeding track horizontally through the window to the staple forming track and cooperates with retainer springs to hold a shifted staple in position in the staple forming track to be implanted and formed about the anvil by the staple former.
Patent CA-1090283-A (CA)
Inventor: FOSTER PERRY A JR
IPC: C25C3/00
Filed: 1976-11-23
Granted: 1980-11-25
Abstract: Abstract of the Disclosure A method for the electrolytic production of metal, includes electrolyzing, between anodic and cathodic surface areas, a compound of the metal dissolved in a molten solvent, the electrolyzing being performed at a temperature such that the metal is formed in the molten state, the metal collecting in a molten metal pad, wherein the improvement includes the provision of cathodic surface area in the form of an array of elements protruding out of the pad into the melt toward the anodic surface area for establishing a series of locations at which the anode-cathode distance is up to 1-1/4 inches.          A method for the electrolytic production of metal, includes electrolyzing, between the anodic and cathodic surface areas, a compound of the metal dissolved in a molten solvent, the electrolyzing being performed at a temperature such that the metal is formed in the molten state, wherein the improvement includes the provision of cathodic surface area formed from at least one hollow body in the melt, the hollow body containing molten material.          A method for the electrolytic production of metal, includes electrolyzing, between anodic and cathodic surface areas, a compound of the metal dissolved in a molten solvent, the electrolyzing being performed at a temperature such that the metal is formed in the molten state, wherein the improvement includes the provision of cathodic surface area in the form of a grate inserted in the melt.
Patent CA-1089363-A (CA)
Title: Method for the treatment of water living animals with  health modifying agents
Inventor: HERSCHLER ROBERT J
IPC: A01K61/00
Filed: 1976-12-17
Granted: 1980-11-11
Abstract: ABSTRACT OF THE DISCLOSURE         A process is described for the introduction of health and/or welfare modifying agents, such as vaccines, to water-living animals such as fish.  The health and/or welfare modifying agents are introduced into and across an epithelial membrane, such as the gill  membrane, of the water-living animal by contacting the epithelial membrane with a hyperosmotic concentration of a membrane permeability altering agent, either simultaneously with or prior to contacting the animal with the health and/or welfare modifying agent.          The membrane permeability altering agent renders the epithelial membrane reversibly permeable to the health and/or welfare modifying agent.  Effective membrane permeability altering agents include chemical compounds having a molecular weight of about 58 to about 61, with the most preferred membrane permeability altering agents being selected from the group consisting of acetamide, urea, sodium chloride and mixtures thereof.
Patent CA-1055123-A (CA)
Inventor: FOREMAN DONALD S
IPC: H03K5/08
Filed: 1976-12-24
Granted: 1979-05-22
Abstract: ABSTRACT OF THE DISCLOSURE A sine-to-square wave converter circuit utilizes a programmable unijunction transistor (PUT).
Patent CA-1100243-A (CA)
Title: Method and apparatus for water treatment
Inventor: ETANI KENJI
IPC: E04H4/14
Filed: 1977-01-10
Granted: 1981-04-28
Abstract: METHOD AND APPARATUS FOR     WATER TREATMENT          Abstract of the Disclosure For water treatment in swimming pools and the like it is desired to feed various chemicals at optimum rates into the water which is recirculated through the system which usually includes a filter.  It has been discovered that the chemicals can be fed by enclosing them in capsules substantially of the size and composition of tennis balls.  The rate of feeding depends upon the size and number of small holes which are provided or which the user pokes through the shell of the capsule, upon the solubility of the chemical, and upon the flow rate of the water through the strainer, skimmer, or other chamber in the system into which the capsule is introduced.          The rate of feeding is substantially independent of the physical form of the chemical as introduced or the amount of chemical remaining in the capsule.  Since the chemicals are typically more dense than water, a capsule made of plastic will sink when full and float when depleted due to air re-maining in the capsule.  In the preferred embodiment this property provides a convenient indication of the need for replenishment.  If the chemical is an organic flocculant, in dry form consisting of high molecular-weight polymer which is very difficult to dissolve, the chemical can be fed by enclosing it in a bag made of fine-mesh fabric instead of in a capsule.  Invention is seen in the new use of such a capsule or bag for the purpose indicated.
Patent CA-1195477-A (CA)
Inventor: RAPSON W HOWARD
IPC: C01B11/02
Filed: 1977-02-21
Granted: 1985-10-22
Abstract: PRODUCTION OF CHLORINE DIOXIDE AT HIGH EFFICIENCY              Abstract of the Disclosure Chlorine dioxide is produced in a continuous process by reaction of sodium chlorate and hydrochloric acid.  The reaction medium is maintained at its boiling point under subatmospheric pressure and the resulting steam is used to dilute the chlorine dioxide and chlorine and remove the same from the reaction zone.  Sodium chloride is deposited from the reaction medium in the reaction zone.  The mole ratio of chlorate to chloride in the reaction medium, and the temperature of the reaction medium are controlled within narrow limits to provide high efficiency of production of chlorine dioxide.
Patent CA-1059328-A (CA)
Inventor: SINCLAIR ALBERT R
IPC: F16L37/00
Filed: 1977-03-16
Granted: 1979-07-31
Abstract: ABSTRACT      A subsea pipeline hub is connected to the hub of an adjacent spool piece connected to an in-place manifold of a subsea structure used in the production of oil and/or gas.  The pipeline hub is positioned relative to the opposing spool hub and a remotely operated pipeline connecting tool is lowered from the water's surface to the subsea structure using guidelines and structural guidance for alignment of the pipeline hub with the spool piece hub.  The spool piece hub is then drawn to the pipeline hub and the hubs are clamped together by operation of the connecting tool.  The seal in the connection can be tested by means of the connecting tool.  The spool piece may be retrieved and replaced by the connecting tool if maintenance is needed.  Connecting tool operations are powered by hydraulic fluid and controlled from the surface. The pipeline hub may be lowered vertically and pivoted into its position adjacent the spool piece or may be pulled into that position.
Patent CA-1056296-A (CA)
Inventor: OXENHAM JOHN
IPC: B21D28/26
Filed: 1977-04-26
Granted: 1979-06-12
Abstract: ABSTRACT OF THE DISCLOSURE A punch press has a workpiece positioning assembly with first and second traverses mounted perpendicular to one another.  The second traverse is unsupported at its ends and mounted intermediate its ends upon the first traverse for horizontal movement in a direction perpendicular to the axis of the second traverse.  The second transverse has a carriage movable therealong for supporting a workpiece and effecting movement in a direction parallel to the axis of the second traverse.
Patent CA-1043660-A (CA)
Inventor: HEAD BASIL J
IPC: F15B1/26
Filed: 1977-04-28
Granted: 1978-12-05
Abstract: ABSTRACT OF THE DISCLOSURE          An oil pressure tank for use in a volume-compensating capacity in a pressurised oil system, particularly a system of oil-filled electric cables, comprises a vessel for receiving the oil and a stack of gas-filled cells within the vessel: each cell comprises two parallel plates each formed with a plurality of concentric annular corrugations, the cells being disposed with respective plates of adjacent cells in face-to-face contact with each plate of each cell having its corrugation peaks aligned with the corrugation peaks of the contacting plate of the ad-jacent cell; at least one plate of each contacting pair has the peaks of at least certain corrugations varying in height around their circumferences so that, in the event of evacuation of the vessel, movement towards each other of each pair of contacting plates is limited by the higher-peak portions whilst at least one radial passage exists between that pair, from periphery to centre of the cells, over the lower-peak portions.
Patent CA-1039694-A (CA)
Inventor: GORDON ROBERT L
IPC: B65D3/10
Filed: 1977-04-29
Granted: 1978-10-03
Abstract: LEAKPROOF PAPERBOARD CONTAINER      Abstract of the Disclosure A substantially leakproof container, particularly adapted for the shipment and storage of frozen liquids, liquid materials, and moisture sensi-tive materials, is provided.  The body of the container comprises a generally cylindrical side or body wall portion and an integral base portion and is constructed from a unitary, thermoplastic coated, paperboard blank.  The side or body wall portion is foldably connected to the base portion.  The base portion comprises a plurality of foldably connected panels, the panels being folded in such a manner as to form first and second upstanding members where-by an annular channel is formed between the two upstanding members.  The first upstanding member comprises at least one panel which lies in face-to-face contact with the lower surface of the cylindrical body wall portion.  This panel is of greater height than the height of the second upstanding member. The second upstanding member comprises, preferably, two foldably connected panels, one of which is joined to the bottom edge of one panel of the first upstanding member and the other of which is joined to the bottom edge of the body wall portion of the container.  A first end closure member or plug seals the base portion of the container and includes a downwardly projecting periph-eral flange that occupies the annular channel formed between the two upstand-ing members.  A second end closure member or cap is provided for sealing the upper end of the container.  The container is rugged and is designed to main-tain its substantially leakproof condition when its bottom edge is subjected to impact occasioned by the dropping of the container during its shipment and/or storage.
Patent CA-1104086-A (CA)
Inventor: GRAVEN RICHARD G
IPC: C10G11/18
Filed: 1977-05-31
Granted: 1981-06-30
Abstract: SHUTDOWN OF CO-COMBUSTION DEVICES     ABSTRACT OF THE  DISCLOSURE           An operating procedure whereby a cracking unit is enabled to continue to function when temporarily or perman-ently deprived of its CO boiler.  The isolation of the CO-boiler is coordinated with the introduction into the catalyst inventory of a CO-oxidation-promoting metal and with increase in regenerator air supply, to bring flue gas CO down to ventable level.
Patent CA-1120491-A (CA)
Inventor: COATES DAVID
IPC: C07C69/94
Filed: 1977-08-05
Granted: 1982-03-23
Abstract: ABSTRACT OF THE DISCLOSURE Novel liquid crystal materials which are trans-4-cyclohexane-1-carboxylic acid esters are provided having the general formula;                                             where R is a normal or branched chain alkyl group, which may also contain a chiral centre, containing up to ten carbon atoms and X is selected from the groups:-                    where A is a cyano group , a normal or branched chain alkyl group, which may also contain a chiral centre, containing up to ten carbon atoms or an alkoxy group in which the alkyl group is as defined immediately above, and where Y is a halogen, preferably chlorine, or hydrogen.
Patent CA-1089147-A (CA)
Inventor: LI TSI T
IPC: C08G65/34
Filed: 1977-09-13
Granted: 1980-11-04
Abstract: ABSTRACT OF THE DISCLOSURE     Vulcanizable elastomeric compositions derived from thiodiethanol and more particularly, vulcanizable elastomeric compositions comprising the reaction product of a major proportion of thiodiethanol and a minor proportion of a low molecular weight, hydroxyl  terminated aromatic or cycloali-phatic polyester.
Patent CA-1106957-A (CA)
Inventor: ANSTEY NIGEL A
IPC: G01V1/36
Filed: 1977-09-21
Granted: 1981-08-11
Abstract: NA???? DEB:LAV               SEISMIC DELINEATION OF OIL AND GAS RESERVOIRS           USING BOREHOLE GEOPHONES                        ABSTRACT OF THE DISCLOSURE                  A method for delineating an oil or gas reservoir using one or more borehole geophones in the discovery well is disclosed.  In this method, both direct and reflected seismic signals are detected by the geophone(s), the down-going signal is used to deconvolve the upcoming signal, the properties of the reflected signal as received from horizontal profiles of sources are mapped over the reservoir locality, and the reflection signals from a plurality of source positions to a plurality of geophone positions are gathered by common depth-point for analysis and for stacking.
Patent CA-1089125-A (CA)
Inventor: WITT ENRIQUE R
IPC: C02F11/04
Filed: 1977-10-07
Granted: 1980-11-04
Abstract: ANAEROBIC TREATMENT        ABSTRACT OF THE DISCLOSURE: Treatment of waste streams, particularly acidic petrochemical wastes, in anaerobic filter at high loadings with high rates of re-cycle.  The effluent from the top of the filter is passed into a gas-disengaging-solids-settling zone containing a quiescent body of the liquid of said effluent.  Particles of solid biomass settle in that liquid body and are with-drawn, with the liquid, and recycled to the base of said filter together with fresh acidic waste and added inor-ganic alkaline material.  The outfall from the filter is fed to an aerobic digester and the resulting activated sludge is recycled to the filter.  The alkaline material is preferably magnesium oxide or carbonate.  Sodium formate may also be used as the alkaline material.
Patent CA-1068676-A (CA)
Inventor: FORSBERG BO E
IPC: B25D17/08
Filed: 1977-11-01
Granted: 1979-12-25
Abstract: ABSTRACT A rock drill is mounted on a cradle that is axially displaceably mounted on a feed beam.  The drill has a front aperture for receiving the rear end of a drill string.  The drill string is freely insertable into and retractable out of a rotation transmitting wear bushing in the aperture, and a drill string retainer is mounted on the cradle.  The wear bushing is also freely retractable out of the drill, and it is also held in position by the drill string retainer.  The rear end of the drill is mounted to the cradle by means of a hinge connection so that the front end of the drill can be swung up when the wear bushing is to be replaced.
Patent CA-1089255-A (CA)
Inventor: BARANOW SANFORD
IPC: C22C19/07
Filed: 1977-11-04
Granted: 1980-11-11
Abstract: ABSTRACT OF THE DISCLOSURE        Oxide dispersion-strengthened metal having from 18 to 35% chromium, 3 to 7% aluminum, 0.2 to 3.0% of an oxide dispersoid, 10 to 45% nickel and at least 30% cobalt.  The oxide dispersoid has a negative free energy of formation at 1000°C of at least as great as that of aluminum oxide.  The metal is suitable for use as a vane in a gas turbine engine.
Patent CA-1084065-A (CA)
Inventor: DIANA GUY D
IPC: C07C45/68
Filed: 1978-01-18
Granted: 1980-08-19
Abstract: ABSTRACT OF THE DISCLOSURE            Phenylenedioxy-bis-diketones having the Formula I          (herein) useful as antiviral agents are prepared by etherifi-cation of dihydric phenols and alkylation of beta-diketones.
Patent CA-1109222-A (CA)
Title: Method with combined vibration and pressure action in  an airless environment for the formation of resin- bonded grit slabs and apparatus for implementing said method
Inventor: TONCELLI MARCELLO
IPC: B29C37/00
Filed: 1978-01-19
Granted: 1981-09-22
Abstract: ABSTRACT OF THE DISCLOSURE           Resin-bonded grit slabs are produced wherein the resins are incorporated in the quantity strictly necessary to bond the inert materials, also obtaining products free from porosity, homogeneous and endowed with dimensional stability.
Patent CA-1101902-A (CA)
Inventor: EICHER JOSEF
IPC: B62B3/02
Filed: 1978-03-14
Granted: 1981-05-26
Abstract: CARRIAGE INSERTABLE INTO THE LOAD SPACE OF A VEHICLE     ABSTRACT OF THE DISCLOSURE:            The present carriage is insertable into the load space of a vehicle such as a station wagon. For  this purpose the carriage or vehicle comprises a loading platform and at least two wheels secured to arms which in turn are tilt-ably secured to the frame structure of the carriage. Roller elements project below the loading platform. The wheels may be arrested in their lowered down position and the arresting may be released when the arms are to be tilted into their upward position when the arms are not loaded.
Patent CA-1089430-A (CA)
Inventor: CAMPO EDGAR A
IPC: B65H54/547
Filed: 1978-03-22
Granted: 1980-11-11
Abstract: ABSTRACT      A slit web rewinding assembly is disclosed, including a winding device with pivotal arm, a chuck, and a pressure-regulated fluid cylinder.  The chuck includes at least one core retaining spring of special design and the fluid cylinder is universally connected to the arm by a ball and socket.
Patent CA-1094534-A (CA)
Inventor: FETCHIN JOHN A
IPC: B01J23/72
Filed: 1978-06-08
Granted: 1981-01-27
Abstract: 26, 209 TITLE: IMPROVED CATALYST PREPARATION METHOD              ABSTRACT OF THE DISCLOSURE             Copper-magnesium silicate-carbonate catalysts of improved activity and catalyst life for use in continuous hydration of acrylonitrile to acrylamide are prepared by a novel method in which magnesium and copper are precipitated separately in a common mother liquor and the precipitate is separated and dried at 170° - 200°C. before pelleting.      Pellets made from the dried powder, when reduced and calcined for use in the hydration reaction have better combination of catalytic properties than prior art catalysts of the type.
Patent CA-1088580-A (CA)
Inventor: BAILEY MORRIS W
IPC: E06B9/68
Filed: 1978-06-14
Granted: 1980-10-28
Abstract: ABSTRACT OF THE DISCLOSURE             There is provided a roll-type door having horizontally positioned slats which is normally held by operator means in an open position against gravity.  Said operator means includes fusible means responding to a predetermined heat level for releasing said door and permitting same to move under gravity in closing direction.  Said operator means includes a device for initiating said door movement immedi-ately after the response of said fusible means to said heat level and further includes a connection to braking means for insuring against too rapid a descent by the door.  The door may be manually opened if desired or mechanical means, power driven if desired, may be provided for opening or assisting in opening such door.  In the latter case, clutch means are provided for disconnecting same immediately upon breakdown of said fusible means whereby said door will be enabled to close freely in response to gravity subject on to control by the above-mentioned braking means.