baber/WOPTO huggingface dataset:
Patent CA-1240494-A (CA)
Inventor: CASSIDENTI MICHAEL L
IPC: B23Q17/09
Filed: 1984-09-10
Granted: 1988-08-16
Abstract: Abstract of the Invention A hot  metal-working  tool  10  using electrical  resistance heating. Metal-working tool 10 comprises seat 12, cutting insert 14 and chipbreaker 18.   Electrical  current  source 35 provides current which  flows between metal working edge 30 of insert 14 and the shear zone 80 of a workpiece 72 during  the  machining  operation.    Cutting  insert  14  comprises  two structural components, one of which 26, contacts chip 82 thereby providing a second path for current flow between tool 10 and shear zone 80.  Shear zone 80 may thus be heated by current not passing through metal-working edge  30.   The  invention  also  provides  for  the  flow of  coolant  fluid through internal passages in tool 10.  The coolant fluid removes heat from metal  working  region  28  and  is  then  discharged  to  bathe  the  region proximate metal working edge 30.
Patent CA-1214563-A (CA)
Inventor: BERLEKAMP ELWYN R
IPC: G06F11/00
Filed: 1984-09-13
Granted: 1986-11-25
Abstract: DIGITAL TIME BASE CORRECTION  ABSTRACT OF THE DISCLOSURE In a multi-channel device for the process-ing of digital data bytes comprised of parallel arrangements of data bits, the invention calls for recognition of the fact that--irrespective of skew and other interchannel variations in the processing of such data bits--the median-occurring bit of each successive data byte constitutes a good representa-tion of the time of occurrence of the byte in question.  By suitably buffering the bits of successive data bytes, a "median clock" that is slaved to the aforenoted "median-occurring" bits may be used to clock data bytes--devoid of inter-channel timing errors--out of the apparatus used for the indicated buffering operation.
Patent CA-1235565-A (CA)
Title: Matrix coating flexible casting belts, method and apparatus for making matrix coatings
Inventor: BERGERON NORMAN J
IPC: B05B13/04
Filed: 1984-10-26
Granted: 1988-04-26
Abstract: MATRIX COATING FLEXIBLE CASTING BELTS, METHOD \A APPARATUS FOR MAKING MATRIX COATINGS A unitary-layer partially metallic, suitably adherent, mechanically and thermally durable, non-wetting, fusion-bonded matrix coating on endless, flexible metallic casting belts for continuous casting machines is described. This fusion-bonded matrix coating is also advantageous for coating other moltenmetal-contacting surfaces, in continuous casting machines, such as edge-dam blocks that define moving side walls of a mold cavity. The fusion-bonded matrix (or reticulum) coating provides advantageous accessible porosity throughout the coating and comprises a nonmetallic refractory material interspersed substantially uniformly throughout a matrix of heat-resistant metal or metal alloy, for example nickel or nickel alloy, which is fusion-bonded to the grit-blasted surface of the belt and anchors and holds the nonmetallic material. The coating is applied by thermally spraying a powdered mixture directly on the roughened surface. The result is to insulate and protect the underlying belt from intimate molten metal contact, from heat stress and consequent distortion and from chemical or stress-corrosive action by the molten metal or its oxides or slags. The nonmetallic material may be present, at least partly, in the form of isolated particles encased within the metallic reticulum and/or in the form of a second reticulum intertwined with the metallic reticulum. The life of the coated belts is dramatically increased, and the surface quality and properties of the cast product are significantly improved. The coating controls and renders more uniform the rate of freezing of the metal being cast, resulting in improved metallurgical properties. Formulations are described and a method of forming such coatings by thermal spraying. Machine for producing insulative and protective coatings on endless flexible metallic belts of continuous casting machines is described. The coating is applied to a revolving belt being supported and driven by pulleys in the machine. The coating is applied by thermally spraying a powdered mixture directly onto the roughened casting surface of the belt. The machine holds the revolving belt under tension and applies cooling to the rear (inner) surface of the revolving belt opposite to the region where the thermal spray gun is applying the coating to the belt, and causes the thermal spray gun to traverse uniformly transversely across the belt regardless of any edgewise movement of the revolving belt being coated for achieving a uniform coating on the belt in spite of lateral movements of the revolving belt. -1A-
Patent CA-1240554-A (CA)
Title: Borehole stemming with a column of liquefiable and/or   vaporizable chunks of solid material
Inventor: COURSEN DAVID L
IPC: F42D1/24
Filed: 1984-11-13
Granted: 1988-08-16
Abstract: TITLE Borehole Stemming with a Column of Liquefiable and/or Vaporizable Chunks of Solid Material ABSTRACT OF THE DISCLOSURE To prevent the rapid escape of high-pressure explosion gases when an explosive charge is initiated in a borehole, the hole is stemmed with chunks of readily liquefiable and/or vaporizable solid material, preferably chunks of ice and/or chunks of dry ice, piled up one upon the other so as to form a columnar bed of pre-so1idified stemming material. The column remains in place during the explosion, and thereafter disappears by melting and/or subliming on absorbing heat from the surrounding formation.  A preferred stemming column comprises a combination of ice chunks and chunks of dry ice, e.g., wherein the ratio of dry ice to ice in the column decreases with distance from the explosive charge.
Patent CA-1201492-A (CA)
Inventor: GREEN DONALD R JR
IPC: H03C3/38
Filed: 1984-11-29
Granted: 1986-03-04
Abstract: DISTORTION COMPENSATION FOR A      MICROWAVE AMPLIFIER            Abstract Amplifier-produced distortion known as amplitude modulation to phase modulation (AM/PM) conversion is reduced through the use of GaAs FETs which are biased to generate AM/PM having an algebraic sign opposite to that generated by the amplifier.  This algebraic sign reversal is accomplished by biasing the GaAs FETs so that a DC drain current ? 75% and ? 10% of the short-circuit drain current is established.  In the disclosed embodiment, several GaAs FETs are cascaded in alternation with attenuators to increase the magnitude of the compensating AM/PM conversion without generating substantial amplitude modulation to amplitude modulation (AM/AM) conversion.
Patent CA-1248454-A (CA)
Inventor: GROWDON JOHN H
IPC: A61K31/7068
Filed: 1984-12-21
Granted: 1989-01-10
Abstract: ABSTRACT OF THE DISCLOSURE          Cytidyl diphosphocholine is administered to a patient alone to increase brain acetylcholine levels or concomitantly with a drug in order to potentiate the effect of the drug by increasing acetylcholine levels in the brain or other tissues, and/or to suppress, or block the development of, unwanted side effects of the drug, by increasing acetylcholine levels in the brain or other tissues.
Patent CA-1229764-A (CA)
Inventor: SCHROTZ KURT
IPC: B41K3/06
Filed: 1985-02-13
Granted: 1987-12-01
Abstract: ABSTRACT     Printing Mechanism A printing mechanism (10) is described which comprises a plurality of setting wheels (16) rotatably mounted on a common axis.  With these settings wheels (16) type carriers (20) carrying printing types in one peripheral region and indicator types in another peripheral region are in a drive connection.  A setting shaft (42) carrying an actuating knob (48) and adapted to be brought into a drive connection with each of the setting wheels (16) is arranged rotatably and axially displaceably. Stop means limit the rotation angle of the setting wheels (16).  The actuating knob (48) and the setting shaft (42) are in connection with each other via a slip coupling.            Figure 1
Patent CA-1253528-A (CA)
Inventor: ROULEAU PATRICK
IPC: B65H3/22
Filed: 1985-02-20
Granted: 1989-05-02
Abstract: ABREGE DESCRIPTIF PROCEDE ET DISPOSITIF DE PREHENSION DE COUCHES SOUPLES EN PARTICULIER TEXTILES ET MACHINE POUR LA PREHENSION ET LE TRANSFERT DESDITES COUCHES L'invention concerne un procédé de préhension de couches souples disposées sur un empilage de cou-ches, en vue de séparer une ou plusieurs couches supérieures des autres couches de l'empilage. Le procédé utilise une aiguil-le (23) se déplaçant par rapport à une surface d'appui (14a) pourvue d'une partie ajourée (16). Le mouvement de l'aiguille (23) est réalisé de sorte que, au cours du déplacement de son extrémité, ladite aiguille repousse la couche souple supérieure vers la partie ajourée (16) et l'amène à former une ondulation dans ladite partie ajourée ; au cours de la phase finale du mouvement, l'aiguille traverse ladite ondulation.
Patent CA-1248519-A (CA)
Title: Composite tool and a process for the production of  the same
Inventor: NAKAI TETSUO
IPC: E21B10/567
Filed: 1985-03-27
Granted: 1989-01-10
Abstract: TITLE OF THE INVENTION      A composite tool and a process for the production of the same ABSTRACT OF THE DISCLOSURE   A composite tool with a higher bonding strength and higher heat resistance is provided comprising an insert of a hard material such as composite diamond or BN compacts and a support , of a hard metal or alloy such as steel and cemented carbides, having a larger volume than the insert, the insert and support   being bonded by friction welding through an interlayer of a high strength metal or alloy such as Co and Ni with a thickness of at most 1 mm.
Patent CA-1251240-A (CA)
Inventor: VINYARD JOHN C
IPC: E05F15/56
Filed: 1985-04-04
Granted: 1989-03-14
Abstract: ABSTRACT            Door latch arrangement A  latch arrangement for emergency opening of, particularly, railway platform screen doors is described.  These doors are power operated and are opened automatically, or under remote control, when a railway train has come to a halt at the platform with its doors in register with the screen doors.  For emergency opening of the screen doors a handle is provided on the track side, thereby to be accessible to a train passenger, which will dis-engage the door latch members and de-energise the prime mover for opening and closing the doors, thus permitting the doors to be opened manually.  In the particular embodiment the handle is connected to a vertically extending rod carried in the door which abuts, when the door is closed, a further rod in the door-headframe which dis-engages the latch members and releases pressure from a pneumatic door actuator, a spring loaded detent mechanism holds the headframe member in the deployed position, so that the prime mover is not re-energised.
Patent CA-1261767-A (CA)
Inventor: THOMPSON MAYNARD L
IPC: B01D46/52
Filed: 1985-04-23
Granted: 1989-09-26
Abstract: APPLICATION OF                       M. L. THOMPSON   The method for spacing the folds of a folded filter media assembly Includes the steps of separating the folds of the filter media by the use of the tapered assembly comb having uniformly spaced teeth and subsequently inserting a rigid divider into the separated and spaced media folds to produce a uniformly spaced filter media.          The comb can be discarded after the divider is inserted, and, accordingly, the comb is made of an inexpensive material having a desired degree of rigidity for handling, e,g., cardboard.  The uniformly spaced filter media assembly is inserted into an operative position for filtering, e.g., as an air filter.
Patent CA-1235313-A (CA)
Inventor: HENSE ULRICH
IPC: E21B4/02
Filed: 1985-07-23
Granted: 1988-04-19
Abstract: ABSTRACT In a device for the transmission of information from a  borehole  to  the  surface  during  the  operation  of  a drilling device which comprises a rotary drill bit,  a tubular housing and a pump which delivers a drilling flu-id downwards  through  the  tubular  housing,  through the rotary drill bit and upwards in the annular space between the tubular housing and the borehole, there is provided a detector arranged in the tubular housing, for detecting information, a processor for converting that information into  a  sequence  of  electrical  control  signals  and  a transducer for generating pressure pulses in the down-wardly-directed flow of drilling fluid as a function of the control signals, and a remote detector arranged at a position spaced from the processor by a wire-less trans-mission path with a transmitter unit associated with the remote detector at one end of said path and a receiver unit at the other end of said path.
Patent CA-1228405-A (CA)
Inventor: FREED DONALD J
IPC: G08B13/24
Filed: 1985-07-26
Granted: 1987-10-20
Abstract: ABSTRACT OF THE DISCLOSURE           Anti-theft device tag assembly and article theft detection system.  An anti-theft device having a thin elongated sealed container (e.g., a closed tube) containing a chemical agent is attached to each article to be protected.  One or more detectors capable of detecting the chemical agent are placed in the area to be protected.  Removal of the anti-theft device, which requires cutting or tearing, causes the chemical agent to be released and to be detected by a detector.  This in turn registers an alarm.  The anti-theft device may be combined with a tag to form a tag assembly.  The tag may contain a passive transponder of a type used in electronic article surveillance systems.  A transmitter and receiver placed near the exit from the protected area will cause an alarm to be activated if someone attempts to remove a protected article with tag attached from the protected area.
Patent CA-1235423-A (CA)
Inventor: GLADFELTER ELIZABETH J
IPC: C08G59/20
Filed: 1985-07-31
Granted: 1988-04-19
Abstract: POLYGLYCIDYL ETHERS OF TRICYCLODECANE             AND AMINO-CURED EPOXY RESINS THEREFROM     ABSTRACT OF THE INVENTION       Polyglycidyl  ethers of tricyclodecane are provided which are useful as monomers in the production of cured epoxy resins.  Also provided are polyallyl ethers of tricyclodecane which are novel intermediates in the preparation of the poly-glycidyl ethers and a method of preparing the polyglycidyl ethers of this invention which uses the novel intermediates.
Patent CA-1246936-A (CA)
Inventor: TSUGITA KOUSAKU
IPC: B41J29/377
Filed: 1985-08-20
Granted: 1988-12-20
Abstract: ABSTRACT OF THE DISCLOSURE         A printing device adapted to reduce the printing speed of a printing head to reduce heat produced and to operate cooling means or allow the cooling ability to be higher when the printing head has a high temperature at which cooling is required, and adapted to reduce the printing speed of the printing head to reduce the heat produced to stop the cooling means or allow the cooling ability to be lower when the printing head has a low tem-perature when cooling is not required, thus reducing operating noise.
Patent CA-1249055-A (CA)
Inventor: MEGURO HIROSHI
IPC: G11B23/42
Filed: 1985-09-09
Granted: 1989-01-17
Abstract: ABSTRACT OF THE DISCLOSURE            A single sided magnetic tape cassette with a remaining tape length indicator comprises a transparent bearing sheet between the tape reels and a transparent window formed in a cassette casing and an opaque bearing sheet between the tape reels and the opposite surface of the cassette casing. The color of the opaque bearing sheet is selected to provide good color contrast with respect to magnetic tape. The opaque bearing sheet is white so as to ensure good color contrast with any dark magnetic tape. Alternatively, the color of the opaque bearing sheet may be any color which provides good color contrast for ease of observation of the remaining length of the tape.
Patent CA-1261153-A (CA)
Inventor: OPPENLAENDER KNUT
IPC: C10L10/18
Filed: 1985-09-30
Granted: 1989-09-26
Abstract: Abstract of the Disclosure:  Aqueous, pumpable, free-flowing coal dispersions which may contain methanol and contain a special, oxyethylated, straight-chain, saturated fatty alcohol mixture as a nonionic dispersant, and the use of this dispersant in coal/water dispersions.
Patent CA-1253519-A (CA)
Inventor: ROBERTSON ALLAN J
IPC: C07F9/30
Filed: 1985-11-26
Granted: 1989-05-02
Abstract: PROCESS FOR SYNTHESIZING DIORGANOMONOTHIOPHOSPHINATES  ABSTRACT OF THE DISCLOSURE           A new and improved method for making diorgano-monothiophosphinate compounds having the formula:                        which comprises oxidizing a secondary phosphine in aqueous media to form the corresponding secondary phosphine oxide and reacting the secondary phosphine oxide thus formed with an excess of sulfur and an hydroxide  compound at elevated temperature for a time sufficient until formation of the diorganomonothiophosphinate compound is substantially com-plete.  The new and improved process of the present invention permits the preparation of diorganomonothiophosphinate.  The products are stable in aqueous systems and are useful as sulfide collectors in froth flotation beneficiation of sul-fide minerals.
Patent CA-1245132-A (CA)
Inventor: BECK RICHARD JR
IPC: F16C19/50
Filed: 1985-12-03
Granted: 1988-11-22
Abstract: UNITARY BEARING RETAINER FOR A SWASHPLATE BEARING               Abstract Of The Invention The invention is directed to a unitary cage assembly annularly positioning a plurality of rollers in a pair of roller bearings supporting a cradle swashplate.  By utilizing the unitary cage assembly, a parallel relationship between the rollers is assured and, furthermore, only a single locating mechanism for the unitary cage assembly is required.
Patent CA-1249098-A (CA)
Inventor: GEYER OTTO-CHRISTIAN
IPC: B29D11/02
Filed: 1985-12-09
Granted: 1989-01-17
Abstract: Hydrophilic copolymers, the use thereof as biomedical materials and contact-optical articles produced therefrom A B S T R A C T    The invention relates to new cross-linked copolymers of N-vinyl pyrrolidone, N-alkyl-N-vinyl carboxylic acid amides, methacrylates and optionally further copolyme-rising monomers of a specific composition. The copolymers have a water absorption capacity of up to about 80% by weight, based on the hydrated state, and are suitable for the production of shaped articles which are in contact with living tissue in use. Examples include soft contact lenses and scleral lenses of high mechanical strength, in particular thin to very thin lenses for prolonged wear.
Patent CA-1250934-A (CA)
Inventor: CHOW PETER E K
IPC: H04Q11/04
Filed: 1985-12-13
Granted: 1989-03-07
Abstract: A METHOD OF OPERATING A TELECOMMUNICATION SWITCHING       SYSTEM OR THE LIKE         Abstract of the Disclosure A method of operating a digital telecommunication switching system or the like.  The method includes the steps of a) synchronizing the switch matrix bus framing with the input bus and the output bus; b) switching the digital signals, from timeslots in a first frame of the input bus to timeslots in a second frame of the output bus such that all the digital signals from the first frame are switched to the second frame; and c) switching in time the digital signals, carried in timeslots on the outgoing bus, to achieve a predetermined ordering of said digital signals.  This single stage constant delay time switch can be cascaded to form a digital telecommunication variable bandwidth switching system.        - i -
Patent CA-1269885-A (CA)
Inventor: BROOMHALL KEITH
IPC: A01F15/00
Filed: 1986-01-21
Granted: 1990-06-05
Abstract: ABSTRACT            "Processing Crop Material"            In compacting straw and other fibrous material into blocks or briquettes the material is precompressed into a length L of compressed material before feeding to compacting means for compacting the length into the blocks or briquettes, The compacting means includes a pair of rotary members 10, 11 rotatable about relatively inclined axes 12, 13. A row of pockets 19, 20 extends around each rotary member and the pockets define spaces in which the material is received.   The rotary members converge during rotation so that the material is compacted in the spaces.
Patent CA-1251542-A (CA)
Inventor: HAHN NORBERT
IPC: G08B7/00
Filed: 1986-02-21
Granted: 1989-03-21
Abstract: ABSTRACT           LOADING DOCK SIGNAL AND CONTROL SYSTEM           A signal and control system is provided in which signal lights are provided on the inside and outside of a dock facility to give dock personnel and truck drivers clearly visible indications of when it is safe or unsafe to load or unload a truck or to park or remove a truck, dependent upon the condition of switches on the inside which are accessible to dock personnel and to the condition of a locking device on the outside which is engageable with the safety bar of a truck.  A slip clutch and a position sensor cooperate to control and avoid adverse effects of slippage in the locking device, a horn is energized to provide a loud audible warning of dangerous conditions, a key pad is used to enter a security code and other features are provided for increased safety and reliability.
Patent CA-1241892-A (CA)
Inventor: DAGHE JOSEPH L
IPC: F16K35/06
Filed: 1986-02-27
Granted: 1988-09-13
Abstract: OPERATING WRENCH FOR TAMPERPROOF HYDRANTS                 ABSTRACT OF THE DISCLOSURE          A tamperproof fire hydrant which can only be operated with use of a special operating means or tool thus preventing the opening of the hydrant by unauthorized persons for unauthorized use.  The hydrant is provided with the usual polygonal end portion of the rotatable operating nut extending out of the top closure member.  A dome shaped cap is mounted on the polygonal end portion of the operating nut for free rotation relative thereto, the dome shaped cap having a skirt with the lower edge thereof spaced from the tubular hold-down nut or top closure member of the fire hydrant to provide a limited access space to the polygonal end portion for reception of the special operating means.  The special operating means is also capable of being used as a tool to remove the nozzle cap off of the usual nozzle and to install the hose coupling on the nozzle.
Patent CA-1266806-A (CA)
Inventor: HENRIKSSON SOEREN N
IPC: F02M35/10
Filed: 1986-03-24
Granted: 1990-03-20
Abstract: ABSTRACT OF THE DISCLOSURE         There is disclosed an arrangement for the inlet of  cooling  and  combustion  air  in  a  motor  saw,  the arrangement having the outdoor air inlet for the cooling fan positioned substantially on top of the motor saw body, such that the air is drawn from an area above the saw, where  the concentration  of  pollutants  is  considerably lower than at the commonly known inlet through the fan cover.  Owing to the fact that the air inlet is positioned at a distance from the fan cover, a common air channel for cooling and combustion air is created between the inlet and the fan wheel, in which channel a shunt damper is arranged.   The shunt enables a balanced mixture of cold outdoor  air  and  warm  recirculating  inner  air  to  be achieved  so  that  a  proper  engine  temperature  can  be effected.
Patent CA-1251886-A (CA)
Inventor: SALENSKY GEORGE A
IPC: C08L71/00
Filed: 1986-04-16
Granted: 1989-03-28
Abstract: CARBOXYLIC ACID-GRAFTED PHENOXY RESINS                    Abstract Phenoxy resins are acid-grafted by reaction of secondary hydroxyls with monoanhydrides of di- or polycarboxyllc acids. The grafted resins have improved adhesion to smooth surfaces, can be readily emulsified, and are also useful in coatings for magnetic recording media.