baber/WOPTO huggingface dataset:
Patent CA-1211921-A (CA)
Inventor: GURTNER BERNARD
IPC: C01F7/22
Filed: 1982-12-21
Granted: 1986-09-30
Abstract: Process for the preparation of high purity alumina containing less than 0.1 weight percent of residual chlorine starting from impure aluminum chloride solutions, which process comprises a crystallization step to provide aluminum chloride hexahydrate crystals having a diameter of from about 400 to about 4000 micrometers in the presence of hydrochloric acid; washing the aluminum chloride hexahydrate crystals so obtained with pure hydrochloric acid; and pyrohydrolyzing the washed crystals of aluminum chloride hexahydrate at a temperature of from about 700 DEG to about 1300 DEG  C., in which pyrohydrolysis a gas is forced through a layer of the washed aluminum chloride hexahydrate so as to remove the gaseous reaction products while obviating any possible movement of the solid by the gas, the process particularly producing transition aluminas simultaneously having a specific surface area greater than 100 m2/g and a chlorine content less than 0.1 weight percent.
Patent CA-1220058-A (CA)
Inventor: DUNN CHARLES G
IPC: B25B21/00
Filed: 1983-01-07
Granted: 1987-04-07
Abstract: ABSTRACT    A drive attachment for a power tool utilising a chuck which enables the tool to be used as a screwdriver or other tool without removing a drill bit from the chuck, comprises a tubular portion 1 adapted to fit over the bit and having at one end drive means providing direct driving engagement with the jaws or head of the chuck.   The drive means may comprise a circumferentially spaced array of two or more longitudinally extending projections 2 adapted to engage in the spaces between the chuck jaws.   A male or female portion 3 of non-circular configuration fits into or over a correspondingly shaped portion 3a of a nut-runner 5 or other tool component.   The attachment may be retained by grub screws 4.   If required the attachment can be closed at one end to completely shroud the drill bit. The closed end may be shaped as or provided with, the tool component which is to be rotatably driven, such as a screw driver head.   In other examples the projections may be movable radially to engage the chuck head, for example to engage in key holes in the chuck.
Patent CA-1225572-A (CA)
Inventor: SABOL GEORGE P
IPC: C22C16/00
Filed: 1983-01-17
Granted: 1987-08-18
Abstract: 29                  48,331 ABSTRACT OF THE DISCLOSURE Described  herein  are  alpha  zirconium  alloy fabrication  methods  and  resultant  products  exhibiting improved high temperature, high pressure steam corrosion resistance.  The process, according to one aspect of this invention, utilizes a high energy beam thermal treatment to provide a layer of beta treated microstructure on an alpha zirconium alloy intermediate product.  The treated product is then alpha worked to final size.  According to another aspect of the invention, high energy beam thermal treatment is used to produce an alpha annealed microstruc-ture in a Zircaloy alloy intermediate size or final size component.  The resultant products are suitable for use in pressurized water and boiling water reactors.
Patent CA-1185344-A (CA)
Inventor: AGARWAL SURESH C
IPC: F04D27/02
Filed: 1983-02-11
Granted: 1985-04-09
Abstract: CENTRIFUGAL COMPRESSOR SURGE CONTROL SYSTEM                     ABSTRACT OF THE DISCLOSURE   A surge control system is disclosed for centrifugal compressors which utilizes an algarithm to calculate a desired orifice differential pressure and compare the calculated result with an actual differential pressure.  A controller is provided for operating a blow-off valve to bring the actual differential pressure to the calculated differential pressure.
Patent CA-1192658-A (CA)
Inventor: EDWARDS RALPH W
IPC: H01Q1/10
Filed: 1983-03-22
Granted: 1985-08-27
Abstract: RADIO ANTENNA AND CONNECTOR APPARATUS          Abstract of the Disclosure:         A connector apparatus for automotive vehicle antenna assemblies includes a free floating pin terminal telescopically related with a female terminal socket and biased into electrical contact at a distal head portion thereof with the antenna mast under the compression of an elastomeric seal member squeezed between a shoulder of the floating terminal element and the end fitting of the female element.
Patent CA-1194210-A (CA)
Inventor: BLACK JOHN O
IPC: G01N29/00
Filed: 1983-04-11
Granted: 1985-09-24
Abstract: ABSTRACT An apparatus and process for detecting the presence of extraneous material in foodstuffs in which the foodstuff, in the form of a flowable slurry, is passed in a longitudinal direction through a curtain of ultrasonic sound. Reflection or absorption of the ultrasonic sound by extraneous material is detected by ultrasonic sound-receiving means, and an appropriate indication of such detection is given.
Patent CA-1199974-A (CA)
Inventor: MARTIN GARY D
IPC: H04L27/34
Filed: 1983-04-21
Granted: 1986-01-28
Abstract: FRAME SYNCHRONIZATION AND PHASE AMBIGUITY  RESOLUTION IN QAM TRANSMISSION SYSTEMS            Abstract A technique for maintaining frame synchronization in a QAM system transmitting nondifferentially encoded data is disclosed.  In accordance with the present invention, multibit words (FI, FQ) comprising framing bits are formed and inserted into the trasmitter data channels.  The value of the framing bit is insensitive to the rotational effects of phase ambiguity by having a predetermined value and by being inserted within a predetermined bit position in each data channel.  In the disclosed embodiments, regeneration errors can also be corrected by the transmission of predetermined quadrant bits within the multibit words.  In addition, the spectral tones generated by multibit word transmission can be reduced by the use of utility bits in the multibit words.
Patent CA-1222459-A (CA)
Inventor: HALSKOV S REN
IPC: A61K31/60
Filed: 1983-04-21
Granted: 1987-06-02
Abstract: A B S T R A C T            A pharmaceutical composition containing as active ingredient 5-aminosalicylic acid or a pharmaceutically acceptable salt or ester thereof allow the treatment of colitis ulcerosa or Crohn's disease by oral administration. A particular slow-release tablet formation and its preparation is disclosed.
Patent CA-1217467-A (CA)
Title: Hubless flange
Inventor: SCHAFBUCH PAUL J
IPC: F16L23/024
Filed: 1983-04-22
Granted: 1987-02-03
Abstract: HUBLESS FLANGE                    ABSTRACT OF THE DISCLOSURE A hubless flange for a valve body has a cross section which tapers outwardly with radial distance from the center line of the flange for radially equalizing the tangential stress for annular fibers in the flange.  The flange includes a plurality of bolt holes and strengthened areas of increased cross section surrounding the bolt holes which also serve as load bearing surfaces for mounting bolts.
Patent CA-1242201-A (CA)
Inventor: BERNTSSON PEDER B
IPC: C07D211/90
Filed: 1983-05-10
Granted: 1988-09-20
Abstract: ABSTRACT            New compounds useful as therapeutical agents and useful as inter-mediates for the preparation of other therapeutically active di--hydropyridines, which new compounds are of the formula                 I wherein R1 in one or two (the same or different) substituents on the phenyl ring selected from the group consisting of NO2, Cl and lower alkyl; R is -CH3, -CHO or   , wherein R11 and R12 are same or different, straight or optionally branched lower alkyl or both together are part of 5-7 membered ring, provid-ed that when one of R is -CH3 the other is -CHO or   wherein R11 and R12 have the meaning given above; processes for the preparation of said compounds; pharmaceu-tical preparations containing said compounds, a method for their therapeutical use and new processes using said compounds as inter-mediates for the preparation of therapeutically active dihydro--pyridines.
Patent CA-1170402-A (CA)
Inventor: STEFFLER JEAN C
IPC: A62B17/00
Filed: 1983-05-19
Granted: 1984-07-10
Abstract: ABSTRACT     This invention proposes a partial pressure jerkin that includes a front panel and a rear panel to overlie the anterior and posterior region of the trunk respectively of a wearer.  The front and rear panels are joined at selected areas of their periphery to provide head, arm and leg apertures.  An opening is formed in the rear panel extending from the head aperture to one of the leg apertures to permit access to the garment and a zip fastener is provided to close the opening.  A single bladder is attached to the inside of the outer garment and is positioned between the front panel and the chest of the wearer.          The bladder extends between the head and arm apertures to terminate in a region adjacent to the shoulder blades of the wearer and covers the anterior portion of the trunk all the way down to the upper thighs and inguinal areas.  The bladder is formed from two skins bound together along their peripheral edges and having a dissimilar elastic modulus so that the stretchier inner skin will conform to the countours of the wearer torso and the stiffer outer skin will react to prevent outward ballooning and to direct the compressive forces towards the torso of the wearer upon inflation of the bladder.
Patent CA-1196427-A (CA)
Inventor: DAVIES THOMAS J JR
IPC: H01L27/118
Filed: 1983-06-06
Granted: 1985-11-05
Abstract: PROGRAMMABLE OUTPUT BUFFER      Thomas J. Davies ABSTRACT      A structure and method are provided wherein a single output buffer stage (50) is provided which can be programmed to function either as an open drain output buffer or a CMOS Push-Pull output buffer. The output buffer stage constructed in accordance with this invention is programmed in one of several manners.   In one embodiment of this invention, the fabrication steps utilized to program the output buffer are the enhancement and depletion dopings, whereby certain devices of the output buffer are programmed to either remain always turned off or always turned on, thus programming the output buffer to serve either as an open drain output buffer or as a CMOS push-pull output buffer.
Patent CA-1201998-A (CA)
Inventor: HIRABAYASHI MASAO
IPC: B43K7/02
Filed: 1983-06-15
Granted: 1986-03-18
Abstract: ABSTRACT OF THE DISCLOSURE          A writing instrument with a ballpoint pen comprising a metallic fine rod having a plurality of capillary holes for flowing ink from one end thereof through the other end in the interior thereof, a short cylindrical portion extending from one end thereof, and an annular narrowed portion on the peri-pheral edge of the front end of the short cylindrical portion; a hard ball rotatably fitted to and held inside the annular narrowed portion and the short cylindrical portion and being in contact with one end of the metallic fine rod inside the short cylindrical portion; and means for introducing aqueous ink connected to the other end of the metallic fine rod.
Patent CA-1200826-A (CA)
Inventor: HARVEY KEITH B
IPC: H05B3/60
Filed: 1983-06-17
Granted: 1986-02-18
Abstract: TITLE JOULE MELTER FOR THE PROCESSING      OF RADIOACTIVE WASTES     INVENTORS Keith B. Harvey Cynthia D. Litke Robert J. Porth ABSTRACT OF THE DISCLOSURE The joule melter has an outer cylindrical electrode which forms the outer wall of the melt containment, an inner cylindrical electrode which protrudes upward in the containment and forms the outlet for the melt, thus, also determining the depth of the melt.  A non-conducting sealing material forms a base plug between the electrodes.  A cylindrical electrically conductive baffle is located between the electrodes and includes an opening which allows the melt to flow from near the outer electrode where the melt material is first inserted into the melter, to the inner electrode which is the outlet.  In addition to the inner and outer electrodes, the baffle may be connected to a power supply to modify the currents flowing at each of the electrodes.
Patent CA-1204261-A (CA)
Inventor: KURUMAJI MASANOBU
IPC: B29C45/67
Filed: 1983-07-14
Granted: 1986-05-13
Abstract: ABSTRACT OF THE DISCLOSURE           A mold clamping device for an injection molding machine wherein a movable table which supports a movable mold is moved in directions approaching and going away from a fixed table which supports a fixed mold to thereby bring the molds into open and closed states, and wherein mold clamping is effected in a closed state of the molds by means of mold clamping cylinders.  The mold clamping device comprises tie rods for guiding the movement of the movable table, the tie rods projecting upward from the fixed table and being each provided with an engaging groove such as threads or the like formed on the outer peripheral surface of its portion projecting from the movable table to the side opposite to the fixed table in the closed state of the molds; and split mold-like locking members capable of engaging and disengaging from the tie rods each through the said engaging groove in the closed state of the molds, the locking members being slidable in the axial direction of the tie rods.  The mold clamping cylinders are disposed between the locking members and the movable table.  Since the tie rods which receive the mold clamping-reaction are so constructed as to be employable also as guide members for guiding the movement of the movable table, it is possible to attain a structural simplification and reduction in size in addition to advantage in maintenance.
Patent CA-1210900-A (CA)
Inventor: IMADA KIYOSHI
IPC: C08J9/00
Filed: 1983-08-10
Granted: 1986-09-02
Abstract: ABSTRACT OF THE DISCLOSURE      The invention provides a foamed body of a chlorine-containing synthetic resin of high expansion with extremely low bulk density still retaining very fine and uniform cel-lular structure. Different from conventional foamed bodies of polyvinyl chloride resins, the inventive foamed body is formed of a chlorinated polyvinyl chloride resin so that the foamed body has excellent heat resistance. The method for the preparation of the foamed resin comprises: preparing a resin composition comprising a chlorinated polyvinyl chlo-ride resin or a mixture thereof with a polyvinyl chloride resin, a foam conditioning resin, e.g. an acrylic resin or a styrene-based resin, and a cell uniformizing agent, e.g. a heat-decomposable blowing agent or an inorganic fine powder; supplying the resin composition to the cylinder of an ex-truder machine; uniformly impregnating the at least partly molten resin composition in the cylinder with a volatiliz-able blowing agent by pressurization; and shaping the resin composition by extruding out of the extruder with simultane-ous expansion by foaming.
Patent CA-1199964-A (CA)
Inventor: KRESGE JAMES S
IPC: G01R31/12
Filed: 1983-09-02
Granted: 1986-01-28
Abstract: SURGE ARRESTER DISCHARGE COUNTING APPARATUS           ABSTRACT OF THE DISCLOSURE       To record significant discharges of a surge arrester, the energy dissipated in a separate varistor element equivalent to the varistor elements in the arrester and connected in the arrester discharge path is monitored. When an arrester discharge results in a temperature increase above a predetermined minimum in the separate varistor element, heat sensing means thermally coupled therewith triggers a counter to record the event.
Patent CA-1204595-A (CA)
Inventor: BAMPFIELD HOWARD A
IPC: C06B47/14
Filed: 1983-10-20
Granted: 1986-05-20
Abstract: Abstract Emulsion Explosive Composition An emulsion explosive composition comprising an oxygen-supplying salt component as a discontinuous phase, an organic medium forming a continuous phase and an emulsifying agent which comprises at least one conventional emulsifier and at least one emulsification enhancer.  The compositions are easily emulsifiable.
Patent CA-1180642-A (CA)
Inventor: SAFONNIKOV ANATOLY N
IPC: B23K35/362
Filed: 1983-11-29
Granted: 1985-01-08
Abstract: ABSTRACT OF THE DISCLOSURE           The disclosure teaches a halogen-based flux for utilization in an electroslag welding process. The flux contains cryolite,  barium fluoride, and an alkali metal bromide.  The flux allows the performance characteristics of the weld to be upgraded and, at the same time, the welding process to be simplified.
Patent CA-1216416-A (CA)
Inventor: PENNY GLENN S
IPC: E21B43/267
Filed: 1984-01-26
Granted: 1987-01-13
Abstract: METHOD OF INCREASING HYDROCARBON PRODUCTION         BY REMEDIAL WELL TREATMENT                  Abstract of the Disclosure Methods of increasing hydrocarbon production from subterranean hydrocarbon-containing formations having impaired permeability are provided wherein the formations are contacted with a penetrating solvent and cationic perfluoro compounds represented by the following formula:                            Such perfluoro compounds are adsorbed onto surfaces of the formation and prevent or substantially reduce wetting of the surfaces.
Patent CA-1184976-A (CA)
Title: Porous passage means and method for particle analyzing systems
Inventor: BERG ROBERT H
IPC: G01N15/00
Filed: 1981-03-25
Granted: 1985-04-02
Abstract: ABSTRACT       A method of and means for controlling orientation of particles through a sensing zone in a particle analyzing system, which facilitates particle shape determination, comprises laminar flow orientation of the particles in a stream moving through an elongate straight passage coaxially aligned with an elongate sensing zone longer than the longest particle to be sensed and analyzed.          The particles are carried through the sensing zone in an isokinetic laminar flow sheath of fluid.
Patent CA-1206741-A (CA)
Inventor: DRAUZ KARLHEINZ
IPC: C01B15/017
Filed: 1984-03-09
Granted: 1986-07-02
Abstract: ABSTRACT OF THE DISCLOSURE         The production of hydrogen peroxide solutions extremely low in water in higher boiling solvents by mixing hydrogen perox-ide solutions in solvents whose azeotrope boiling points with wa-ter lie below the boiling point of hydrogen peroxide with higher boiling solvents which at best form azeotropes with water whose boiling points lie close to or above the boiling point of hydrg-gen peroxide.  The mixture is then freed from water and from the lower boiling solvents by distillation.  An in situ method for producing the above mixture is described.
Patent CA-1201471-A (CA)
Inventor: HERRIOTT RONALD W
IPC: H01J23/065
Filed: 1984-04-04
Granted: 1986-03-04
Abstract: AN ELECTRON GUN WITH IMPROVED CATHODE               AND SHADOW GRID CONFIGURATION            ABSTRACT      An  improved electron gun  is  shown with  a  cathode having a smooth,  concaved surface and a grooved pattern therein which matches, and is aligned with, the pattern of a shadow grid placed immediately before the cathode surface so that the outer, larger radius of curvature of the shadow grid closest to the cathode is substantially identical and concentric with  the  radius of  curvature  of  the  smooth, concave  cathode  surface.   Beyond  the shadow grid  is  a control grid which controls the flow of electrons emitted from the  cathode toward an anode.  The grooves which form the pattern within the cathode surface have tapered side walls and rounded outer and inner corners to improve the flow of emitted electrons and facilitate manufacture.
Patent CA-1223804-A (CA)
Inventor: HUDSON MICHAEL J
IPC: E01B31/08
Filed: 1984-04-24
Granted: 1987-07-07
Abstract: ABSTRACT OF THE DISCLOSURE    The  method  and  apparatus  are  for  bending  or straightening a material such as a rail.  A simple form of the apparatus comprises two spaced contact members for contacting  the  rail,  and  a  rail  lifting  member located between these points arranged to lift the rail between  the  two  points,  the  lifting  member  being arranged to engage the head of the rail.   A preferred method comprises applying a load to the material and, while the load is applied, continuously or periodically measuring the load applied and the displacement of the material relative to the datum, establishing from the measurements a load at which the plastic component of the  total  deformation  measured  is  equal  to  the predetermined  deformation  from  the  datum,  and  then removing the load.
Patent CA-1244995-A (CA)
Title: Polyimides, a process for their preparation and their   use
Inventor: PFEIFER JOSEF
IPC: C08G73/16
Filed: 1984-05-16
Granted: 1988-11-15
Abstract: Polyimides, a process for their preparation and their use Abstract:         Homopolyimides and copolyimides of aromatic tetra-carboxylic acids and aromatic diamines which are substituted in the two ortho-positions relative to at least one N atom by alkyl, alkoxy, alkoxyalkyl, cycloalkyl or aralkyl, are soluble in organic solvents and have increased glass transition temperatures and hence very good heat stabilities.  Such polyimides, which contain radicals of a benzophenone-tetracarboxylic acid, are radiation-sensitive and auto-photocrosslinkable.  The polyimides are suitable for the production of films, protective coatings and photographic relief images.
Patent CA-1206309-A (CA)
Title: Hockey-stick manufacture
Inventor: ADACHI YUTAKA
IPC: B29C70/46
Filed: 1984-06-07
Granted: 1986-06-24
Abstract: HOCKEY STICK MANUFACTURE     ABSTRACT          The  method  disclosed is for  making  hollow-handled  sticks  in fibre-reinforced  plastic.          The  method  is to mould the stick  handle  in moulds that run the full length of the handle.          The  moulds comprise a core and a  channel.  A resin-and-fibre  mat is squeezed  between  the core  and the channel.   The hollow handle can be  formed  either  by  glueing  two  U-shaped components  (15,16)  together one  inside  the other  or  by wrapping the mat (27)  around  a mandrel  (24),  in which case the  mandrel  is withdrawn lengthwise after curing.   The stick blade  (29)  may  itself be  inserted  in  the channel  (25)  in which case the mat  of  the handle may be arranged to enwrap the blade.
Patent CA-1222498-A (CA)
Inventor: SHADWICK DAVID T
IPC: B41J33/20
Filed: 1984-06-20
Granted: 1987-06-02
Abstract: IMPROVED RIBBON FEED CARTRIDGE                 Abstract of the Invention The feeding of typewriter ribbons is improved by utilizing a cartridge carried driving element engaging the periphery of a translatable take-up spool where the driving element is driven by an interface connection with a driving member connected either directly or through a gear reduction train to a stepper motor.  The simplified ribbon feed mechanism provides control over the increment of feed electronically as well as each ribbon cartridge carrying the appropriate gear reductions, if necessary, for different types of ribbons.
Patent CA-1223893-A (CA)
Inventor: DESBOIS MICHEL
IPC: C07C49/80
Filed: 1984-06-22
Granted: 1987-07-07
Abstract: A process for the chlorination of aromatic derivatives. The aromatic derivative is reacted with chlorine gas in liquid hydrofluoric acid. The products obtained are useful as intermediates for the synthesis of compounds having a plant-protecting or pharmaceutical activity.
Patent CA-1226670-A (CA)
Inventor: GEBEKE CHARLES D
IPC: G11B23/087
Filed: 1984-06-25
Granted: 1987-09-08
Abstract: Slack Limiter For A Magnetic Tape Cassette Abstract A cassette (2) includes a slack limiter (24) which engages tape (14) extending from reels (10,12) within the cassette (2) and prevents the tape (14) from unwinding from the reels (10,12) and developing slack or looseness.         In one embodiment, the slack limiter (24) is formed from a thin, flexible, resilient strip of material which includes a mounting portion (34) formed by folding the strip to produce a compression member (36) extending at an acute angle to the slack limiter (24).  In a second embodiment, the slack limiter (88) includes two oppositely extending strips and a mounting portion (98) formed by two folds (100,102) and an interconnecting compression member (104).     In either embodiment, the mounting portion (34,98) of the slack limiter (24,88) is retained in the housing (4?,52) by a receptacle (26,78) which compressively engages and bows the compression member (36,104).