baber/WOPTO huggingface dataset:
Patent CA-1197971-A (CA)
Title: Metallurgical vessel having an opening and a flange  around the opening
Inventor: DE GRAAF JAN A
IPC: C21C5/46
Filed: 1983-05-18
Granted: 1985-12-17
Abstract: -.            "A metallurgical vessel having an opening and a flange around the opening"               ABSTRACT OF THE DISCLOSURE       A metallurgical vessel e.g. a steel converter or a tundish has a supporting and/or protecting metal flange 2,3 extending around its opening.  In order to reduce thermal stresses in the flange there are a plurality of removed portions 8,13 of the flange metal at or close to the inner periphery 7 of the flange and distributed circumferentially around the flange.  The removed portions may be holes 8 spaced from the inner periphery of the flange; and/or may be slots 13 extending across part of the flange radially from the inner periphery.
Patent CA-1201150-A (CA)
Inventor: WEISER JOHN R
IPC: F24H9/20
Filed: 1983-06-03
Granted: 1986-02-25
Abstract: ABSTRACT OF THE DISCLOSURE An electric hot water heater energy saver incorpor-ates an electrically operated timer which is provided with contacts preferably by a timer motor.  The contacts are oper-able to open and close an electric circuit, preferably several times during a twenty-four hour period.  Electrical energy, typically from a 220 volt line, is connected to the timer motor and separately to the electrical contacts.  The electrical con-tacts are connected in series with the electrical energy source and electrical heater element of an electric hot water heater. A step down transformer provides a signal voltage.  A contactor is provided with its contacts connected across the timer motor operated contacts.  A switch, preferably located remotely in a living area, is connected in series with the signal voltage and when closed, operates the contactor to supply electrical energy to the hot water heater element by the timing of the timer motor. A method of conserving electrical energy in an electrically oper-ated hot water heater forms a part of the invention.
Patent CA-1220494-A (CA)
Inventor: ISOGAI NOBUO
IPC: C07C29/32
Filed: 1983-06-15
Granted: 1987-04-14
Abstract: PROCESS FOR PRODUCING ETHANOL     Abstract:      A process for producing ethanol which comprises react-ing methanol, carbon monoxide and hydrogen in the presence of (a) a catalyst containing a cobalt component, an iron component, a ruthenium component and an iodine component, (b) at least one organic solvent and (c) water, said catalyst comprising the cobalt component in amount of 0.1 - 500 milligram atom (mg-atom) in terms of cobalt per 1 mol of methanol, an iron component in amount of 0.01 - 4 atoms per 1 atom of cobalt in terms of metal, a ruthenium component in amount of 0.01 - 4 atoms per 1 atom of cobalt in terms of metal and an iodine component in amount of 0.05 - 20 atoms per 1 atom of cobalt is disclosed.  According to the present invention, selectivity to ethanol is high and ethanol can be obtained under mild conditions.
Patent CA-1241432-A (CA)
Inventor: LOFTIN RAYFORD A
IPC: H04R1/44
Filed: 1983-06-23
Granted: 1988-08-30
Abstract: ABSTRACT: "End weighted reed sound transducer".     A cylindrical shell enclosure has mounted interiorly thereof in cantilever manner four upstanding laminated planar flexible resilient electroacoustic trans-ducer reeds. A separate inertia weight is affixed to the top edge of each reed. An acoustic wave impinging on the side wall of the submerged enclosure will cause relative movement between the enclosure and a weight if the wave direction has a component transverse to the plane of the reed on which the weight is mounted. The reeds are mounted in quadrature so that wave direction detection is provided by comparing the electrical outputs of the reeds. Visco-elastic damping pads may be affixed between the side ends of each of the weights and respective upstanding rigid arms secured to an interior surface of the enclosure.
Patent CA-1205971-A (CA)
Inventor: GARTNER KARL
IPC: E04C3/04
Filed: 1983-07-26
Granted: 1986-06-17
Abstract: ABSTRACT OF THE DISCLOSURE           A section for building used for vertical frame members and horizontal frame members for a curtain wall or a window sash.          The section comprises a first hollow portion of large width located substantially in a central portion of a body of the section and extending in a longitudinal direction of the body, a second hollow portion of small width provided adjacent to one side of said first hollow portion and extending parallel to said first hollow portion, and a mounting portion provided on the other side of said first hollow portion to mount a plurality of other separate members.  The first hollow portion is used as a passage through with air flows, while the second hollow portion is used as a passage through which heat transfer medium flows.
Patent CA-1221546-A (CA)
Inventor: SHANK WILLIAM E
IPC: B24B45/00
Filed: 1983-07-27
Granted: 1987-05-12
Abstract: ABSTRACT OF THE DISCLOSURE         A regulating wheelhead drive for a centerless grinder for ready replacement of wheels and providing for easily and positively verifiable engagement comprising a drive means including a drive coupling having a tapered inner bore and a threaded outer diameter, a drive shaft independently supported by bearing means, the drive shaft having a tapered portion for engaging the tapered inner bore of the drive coupling means, and a threaded portion, clamp ring means having an internal threaded bore for engaging the threaded portion of the drive shaft, lock ring means having a threaded inner bore for engaging the threaded portion of the drive coupling for jamming the clamp ring means, and a coupling means having orthogonally disposed lug means and key slot means.
Patent CA-1194927-A (CA)
Inventor: SHIGETA MASATOMO
IPC: H01M4/86
Filed: 1983-08-30
Granted: 1985-10-08
Abstract: TITLE OF THE INVENTION:      RIBBED SUBSTRATE FOR FUEL CELL ELECTRODE     ABSTRACT OF THE DISCLOSURE:        A porous ribbed substrate for a fuel cell electrode is herein disclosed which has a ribbed layer on one side and a non-ribbed layer with a bulk density larger than the bulk density of the ribbed layer.  The fuel cell electrode substrate has a porosity of 50-80 % and good mechanical strength such as a bending strength of not less than 50 kg/cm2.  A fuel cell prepared from the electrode substrate has excellent properties.
Patent CA-1253456-A (CA)
Inventor: HAYFIELD PETER C S
IPC: C23F13/02
Filed: 1983-10-25
Granted: 1989-05-02
Abstract: ABSTRACT OF THE DISCLOSURE         A titanium or niobium electrode substrate (which may be copper or steel cored) having on its surface a painted and fired anodically active layer for example of a platinum group metal, there being an interlayer of tantalum or an alloy containing more than 50% tantalum in metallic form between the anodically active layer and the substrate.  The tantalum metal eases the manufacture of painted and fired niobium substrate electrodes, and provides to titanium substrates an enhanced resistance to acid undermining.          The electrode may be an elongate rod having longitudinally extending protuberances along the length of the rod and around the circumference, the spacing and height of the protuberances being such that a straight line connecting the peaks of two adjacent protuberances does not intersect with the body of the electrode so that the protuberances protect the anodically active coating from damage during installation and operation of the electrode.
Patent CA-1262496-A (CA)
Inventor: FOX DANIEL W
IPC: C08L69/00
Filed: 1983-11-25
Granted: 1989-10-24
Abstract: POLYCARBONATE/CONDENSATION POLYMER BLENDS          ABSTRACT OF THE DISCLOSURE A thermoplastic composition includes compatible blends of a mixed polycarbonate comprising units derived from a first dihydric phenol, which is a bis(hydroxyaryl) sulfone, a second dihydric phenol; and one or more thermo-plastic condensation polymers containing hereto groups.
Patent CA-1234071-A (CA)
Inventor: ILLY ERNESTO
IPC: B07C5/342
Filed: 1983-12-19
Granted: 1988-03-15
Abstract: ABSTRACT     The procedure includes observation of each grain by optic-electronic devices and consists of an initial stage during which several values,  representing color signals, are extracted and read and are then processed by a computer to reduce all the signals to two numbers only,  defining a pair of coordinates on a plane where the colorimetric characteristics of the grains are represented,   and of a second stage in which each grain is automatically classified within an electronic grid, related to the above plane,  wherein an operator has already assigned the squares for classes of unacceptable grains.  The machine includes an analog-to-digital converter able to convert the analog signals received from the observation devices into binary form, two adaptor circuits, a computer and a memory for controlling sampling and analog-numerical conversion of the color signals,  also for storing all samples obtained, as well as for executing the above first and second stages of the procedure.
Patent CA-1231222-A (CA)
Inventor: SCHMIDGALL HARTZELL H
IPC: B28B21/56
Filed: 1984-01-26
Granted: 1988-01-12
Abstract: Abstract Manufacturing lined concrete pipe in a reduced time, and provision of such pipe with reduced tendencies to rusting and liner separation, are achieved by a cartridge assembly movable to and away from the pipe machine, a work stand assembly for positioning the cartridge to receive a liner, liner tensioning structures and liner to cartridge clamps for moving the liner to the cartridge, tightening the liner, and holding the liner during transport by the cartridge, and tension bars controlling wire tension during pipe formation.          Concurrently with operation of the standard pipe machine, the work stand operates to place a liner on the cartridge.          During the stripping cycle of the pipe machine, the cartridge delivers the liner to the core.  During the pipe machine vibration under pressure cycle, the tension on the liner tension wires is relieved.
Patent CA-1204170-A (CA)
Inventor: BERNARD FRANCIS S
IPC: H03H17/02
Filed: 1984-01-31
Granted: 1986-05-06
Abstract: Abstract of the Disclosure A method is described for generating continuously variable sets of weighting coefficients for application to weighting circuits of a sampled data filter.  The generated coefficients are produced by scaling the time axis of the impulse response described by a set of standard or nominal weighting coefficients in an inverse manner to a desired scaling of the filter frequency response.  The coefficient values at the scaled time points are calculated by a piecewise linear interpolation process and correspond to the scaled coefficients.  By this technique, a large number of sets of weighting coefficients may be generated from a single set of coefficients with relatively few circuit elements.
Patent CA-1217374-A (CA)
Inventor: SHOESMITH ROY
IPC: E01C11/00
Filed: 1984-02-15
Granted: 1987-02-03
Abstract: Abstract of the Disclosure A reinforcing semi-rigid, resin impregnated continuous filament fiberglass is incorporated into a paved road or surface to provide increased strength and resistance to cracking.
Patent CA-1198126-A (CA)
Inventor: DRAUZ KARLHEINZ
IPC: C07C37/60
Filed: 1984-03-09
Granted: 1985-12-17
Abstract: ABSTRACT OF THE DISCLOSURE         The  known  nuclear hydroxylation  of  phenol  or phenol derivatives with organic hydrogen peroxide  solutions in the presence of a catalyst is carried out  with  hydrogen peroxide solutions which are produced  with  solvents  whose azeotrope boiling points with water lie  below  the  boiling point  of  hydrogen  peroxide.   These   hydrogen   peroxide solutions are extremely low in water.  Silenium  dioxide  is simultaneously used as the catalyst.  In   addition  to  the fact that the  nuclear  hydroxylation  can  industrially  be carried out in a much simpler manner it is possible for  the first time to control the ortho to para ratio and two  ortho ratios among each other.
Patent CA-1217358-A (CA)
Inventor: ODOBASIC STEVEN L
IPC: F16F1/14
Filed: 1984-03-16
Granted: 1987-02-03
Abstract: ABSTRACT           A structural element which is particularly suited for use in accommodating torsional displacement while carrying various axial, transverse, and flexural loads.  The structural element is of a multi-component construction which includes at least one elongated tube-like thin wall member having a pair of longitudinally-extending edges.  The wall member is laterally engaged and constrained by one or more stabilizers which permit yielding relative motion between the edges when torque is applied.
Patent CA-1264618-A (CA)
Inventor: EFFENBERGER JOHN A
IPC: D06N7/00
Filed: 1984-04-13
Granted: 1990-01-23
Abstract: ABSTRACT           A novel composite comprises a substrate having a coating matrix including an initial layer of a perfluoro-polymer and an overcoat comprising a fluoroelastomer, a fluoroplastic, a fluoroelastomer/fluoroplastic blend, or a combination thereof.  The perfluoropolymer in the initial layer may be a perfluoroplastic, a perfluoroelastomer, or blends thereof.  In a separate embodiment, the novel compo-site includes a substrate coated solely with one or more layers of perfluoroelastomer alone or as a blend with a per-fluoroplastic.  Where the substrate is not susceptible to hydrogen fluoride corrosion, the composite may include solely one or more layers of a blend of a fluoroelastomer and a hydrogen-containing perfluoroplastic.  Cross-linking accele-rators may be used to cross-link one or more of the resins contained in the coating layers.  Each composite may be top-coated with a layer or layers of a fluoroplastic, fluoro-elastomer, and/or a blend thereof.  The composite is flexible, exhibits good matrix cohesion and possesses substantial adhesion of the matrix to the material acting as the rein-forcement or substrate.  A method for making such a com-posite comprises the unique deployment of a perfluoropolymer directly onto the substrate in a relatively small amount sufficient to protect the substrate from chemical corrosion without impairing flexibility, followed by the application of the overcoat layer.
Patent CA-1215326-A (CA)
Inventor: HOLMAN TOMLINSON
IPC: H04R1/02
Filed: 1984-05-08
Granted: 1986-12-16
Abstract: MOTION PICTURE THEATER   LOUDSPEAKER SYSTEM            Abstract of the Disclosure A motion picture loudspeaker system is described in which  the  loudspeaker  elements  are  integral with an acoustical boundary wall such that the characteristics of the  vented  for  woofers  are  optimized.  In  order  to overcome high  reflection problems  as  sound  from the tweeters is reflected by the motion picture screen and the acoustical boundary wall, frequency dependent acoustical absorptive material is attached to the wall to inhibit high frequency reflections with minimal effect on the bass optimization.  The system includes the use of a steep  slope  crossover  network  having  a  crossover frequency such that there is a first order match of the woofer and tweeter dispersion at the crossover.
Patent CA-1226650-A (CA)
Inventor: SAUNDERS ARTHUR F
IPC: F02D41/02
Filed: 1984-05-09
Granted: 1987-09-08
Abstract: Abstract of the Disclosure It is known to provide a control system for a gas-turbine engine having two parallel control units one of which supplies control signals to the engine in response to input signals, such as from the pilot's control lever and from various sensors.          Each unit in such a system can have a limiter that limits the fuel supply to the engine if the engine speed approaches or exceeds a predetermined maximum.  In the present invention each control unit has a monitor unit which detects when the limiter has assumed control of the engine for more than a predetermined time, and switches the system to control by the other control unit.  The predetermined engine speed may be different for different settings of the pilot's control lever.  The monitor unit in such an arrangement, may receive signals in respect of the acceleration and deceleration of the engine and switch to the other control unit only when the speed is outside the predetermined speed for the pilot lever setting, and when the acceleration or deceleration is not such as to bring the speed back within the predetermined speed.
Patent CA-1224842-A (CA)
Inventor: GLENNON TIMOTHY F
IPC: H02M3/155
Filed: 1984-05-16
Granted: 1987-07-28
Abstract: Abstract Parallel MOSFET Power Switch Circuit A power switching circuit for controlling the power from a DC supply to a regenerative load.          The switching circuit includes a plurality of parallel connected MOSFETs.  A first diode is con-nected in parallel with the MOSFET switches and poled to conduct reverse current from the load.  A second diode is connected in series with the MOSFETs to block the flow of reverse current through the MOSFETs.
Patent CA-1214524-A (CA)
Inventor: SEEVINCK EVERT
IPC: H03F1/52
Filed: 1984-06-21
Granted: 1986-11-25
Abstract: ABSTRACT:            Protection circuit.     To protect a transistor (T1) its emitter current is converted by a resistor (R1) into a voltage which by means of a voltage-current converter (6) is converted into a current which is proportional to the emitter current. The collector-emitter voltage is converted by means of a voltage-current converter (9) into a current which is proportional to the difference between a knee voltage (VKN) which is applied to the converter (9), and the collector-emitter voltage, the converter (9) not producing an output current for collector-emitter voltages exceeding the knee voltage VKN. The difference between the output currents (IM) of the converters (6 and 9) is compared with the current (ID) carried by a current source (14),The protection circuit becomes operative when this difference current (IM) exceeds the current (ID) carried by the current source (14). A control amplifier (16) then drives the transistor (T1) in such manner that the difference current (IM) becomes equal to the current (ID), above the knee voltage (VKN) a residual current which has a value proportional to the current (ID) carried by the current source (14) continuous to flow through the transistor T1. As a result thereof the value of the residual current depends to a lesser extent on variations, which reduces the risk of damage to the transistor due to overloading at high collector-emitter voltages.
Patent CA-1225244-A (CA)
Inventor: PAGE RONALD D
IPC: E02B15/02
Filed: 1984-09-27
Granted: 1987-08-11
Abstract: METHOD AND APPARATUS FOR SPLITTING ICE MASSES     ABSTRACT         A method and apparatus is disclosed for drilling in ice wherein a rotating annular shaped head selectively melts a horizontal path into a large mass of densely packed ice masses such as an iceberg.  The drill may be used to split icebergs or served as an anchor for a tow line or signal transmitter.
Patent CA-1230916-A (CA)
Inventor: FANTUZZO JOSEPH
IPC: G03G15/02
Filed: 1984-10-31
Granted: 1987-12-29
Abstract: ABSTRACT             A corona discharge device including a throw-away subassembly which is inexpensive and can therefore be discarded when it becomes ineffective for its intended purpose. The subassembly can be readily installed into the printing machine in which it is used. It comprises a generally rectangular-shaped insulative frame and a tungsten wire. When the subassembly is inserted into the machine, it cooperates with a generally U-shaped, conductive shield which is an integral part of the machine to form the corona discharge device.
Patent CA-1219351-A (CA)
Inventor: HETTIGER JAMES
IPC: H03K5/00
Filed: 1984-12-12
Granted: 1987-03-17
Abstract: RCA 78,150 ABSTRACT           In a color TV receiver incorporating automatic kinescope bias (AKB) control circuits, a first train of monolevel pulses with timing suitable for retrace blanking purposes and a second train of monolevel pulses with "backporch" timing appropriate for burst gating purposes are applied to a circuit serving to generate at a first terminal a train of bilevel pulses exhibiting a first voltage level during periods of overlapping of the pulses of the first and second trains, and exhibiting a second, lesser voltage level during the remaining, non-overlapping portions of the pulses of the first train.  A resistor interconnects the first terminal with a second terminal. A keyed voltage source, responsive to a third train of monolevel pulses timed to indicate recurring kinescope bias control intervals, develops a voltage of a third level, intermediate the first and second voltage levels, at the second terminal during the recurring control intervals.  The keyed voltage source exhibits, during the control intervals, an output impedance significantly lower than the impedance exhibited by the interconnecting resistor.  During periods intervening successive ones of the control intervals, the voltage source is effectively disabled and exhibits an output impedance significantly higher than the impedance exhibited by the resistor.
Patent CA-1238623-A (CA)
Inventor: SCHWARTZ C BRUCE
IPC: A61B19/02
Filed: 1985-02-01
Granted: 1988-06-28
Abstract: ARTHROSCOPY SUPPORT STAND ABSTRACT OF THE DISCLOSURE An  arthroscopy  support  stand  contains,  in  a single  movable  unit,  all  of  the  apparatus  needed  to perform  arthroscopic  surgery.   The  stand  comprises  a wheel-mounted steel cabinet with shelves,  open at the front,   for  supporting  various  arthroscopic  surgery appliances;  two  upright,  vertically  telescoping  fluid bag standards, and a vertical support column is mounted at the front of the cabinet on a pair of vertically-spaced parallel horizontal arms.  The arms are pivotally mounted at the middle of the cabinet so that the support column can swing across and be locked at either side of the  front of  the cabinet.   The  support column has  a telescoping upper portion supporting a television camera boom.   A pair of articulated support arms are mounted one above the other on a lower portion of the support column for vertical and rotational movement to support a television monitor and an instrument tray.
Patent CA-1227835-A (CA)
Inventor: NISHIMURA IZUMI
IPC: H04W88/02
Filed: 1985-02-05
Granted: 1987-10-06
Abstract: Abstract of the Disclosure A paging communication system is configured so that a plurality of receivers are called in group in response to a paging signal transmitted from a base station. The base station is provided with first circuitry comprising a plurality of timers for counting the number of transmission to each receiver, and second circuitry operative to transmit first data indicating that an information code assigned to each of particular ones of the receivers is masked and second data for restarting an ordinary receiving processing in respect to the masked information code. Each receiver is provided with a decoder circuit operative in response to the first data to inhibit an ordinary receiving processing in respect to the masked code and operative in response to the second data to restart the ordinary receiving processing. Thus, the communication system can inhibit information supply only to receivers which is not renewed for contract fee or restart the information supply after the renewal of the contract fee. Further, this system may determine an amount of charge depending upon calls of individual calling number on the basis of a counted value obtained by the first circuitry provided in the base station.
Patent CA-1227570-A (CA)
Inventor: POSSO PATRICK
IPC: G11B23/04
Filed: 1985-03-27
Granted: 1987-09-29
Abstract: "VIDEO TAPES CASSETTE"               ABSTRACT OF THE DISCLOSURE       A cassette comprising a housing made of two portions having a front surface provided with an  aperture  through which  access  can be had to the video tape, this aperture being closed by a flap/hingedly mounted to the cover. This flap  is locked by a bolt consisting of a lever of synthe-tic material molded integrally with a resilient arm acting as  a  return  spring and which is engaged by a notch on a lower boss on which it is held by a boss  rigid  with  the cover.  The  lock can be introduced freely into its recess and positioned automatically when fitting the  cover.  The release is obtained in the known manner through a window.