baber/WOPTO huggingface dataset:
Patent CA-1133762-A (CA)
Title: Frames for windows and other panels
Inventor: DAWSON CHARLES D
IPC: E06B3/263
Filed: 1980-05-12
Granted: 1982-10-19
Abstract: ABSTRACT      In a composite section for making up window frames and the like, and comprising interengaging sections of metal and of plastics, there are at least two spaced-apart pairs of interengaging hook formations on the two sections, forced into tight engagement by the insertion of a wedging strip between the sections,  the spacing apart  of  the  formations  ensuring  stability  against tilting.  There are furthermore abutment surfaces on at least one of the hook formations on the plastics section and on the metal section to define accurately the rela-tive positions of the sections.  The purpose is primar-ily to ensure the front and back faces of the composite section are truly parallel and correctly spaced apart.
Patent CA-1134394-A (CA)
Inventor: GRANE HENRY R
IPC: C07C409/04
Filed: 1980-06-04
Granted: 1982-10-26
Abstract: ABSTRACT OF THE DISCLOSURE Isobutane is oxidized in a pressurized reactor in the presence of a solubilized molybdenum catalyst to produce a mixture of tertiary butyl alcohol, tertiary butyl hydroperoxide, methanol, acetone, and other oxygen containing compounds. Unreacted isobutane is recycled. Streams of normally gaseous components, comprising carbon dioxide and carbon monoxide are withdrawn from the effluent streams. A liquid stream withdrawn from the reactor, after being debutanized, is subjected to a thermal decomposition zone under several atmospheres pressure at about 280°F for from 2 to about 8 hours to reduce the concentration of tertiary butyl hydroperoxide. The liquid derived from the decomposition zone is distilled to provide a distillate stream comprising predominantly tertiary butyl alcohol and a minor proportion of methanol. Said distillate stream is heat treated to destroy residual TBHP and then transferred to a gasoline blending zone in which it is added to hydrocarbons. Said oxygen-containing fuel is blended as if it were a technical grade of tertiary butyl alcohol, notwithstanding the fact that measurable amounts of acetone, methanol, and/or related oxygen containing compounds might be present.
Patent CA-1093867-A (CA)
Inventor: LUDWIG ALFRED
IPC: B23K5/02
Filed: 1980-06-05
Granted: 1981-01-20
Abstract: Abstract of the Disclosure A weld-cladding method includes the steps of a method of internally weld-cladding a toroidal body, said method comprising the steps of forming a pair of torus-sector half-shells; machining the edges of each half-shell; subsequently welding the half-shells together into a toroidal body; straight-ening and heat treating the toroidal body; thereafter applying a weld-clad along tangential generatrix lines on the inside of the toroidal body; and subsequently stress-annealing the weld-cladded toroidal body.  As a result of use of the method, the so-called Kardo seam can be omitted.
Patent CA-1137783-A (CA)
Inventor: WOOD MILTON D
IPC: E21B43/243
Filed: 1980-07-09
Granted: 1982-12-21
Abstract: ABSTRACT OF THE DISCLOSURE      An underground combustion operation in which combustible material, in a selected geologic forma-tion at a selected depth is burned by forcing air under pressure down a first well into the formation, and collecting products of combustion at a second well, a selected distance away from the first well.          The overburden above the formation is supported, in part, by the combustible material, which might be viscous oil, tar, etc.  This material is ignited at the first well and a flame front is formed which burns in the form of a circular front, which moves radially outwardly as a function of time and the rate of air supply.  A plurality of electronic tilt meters are positioned at or near the surface of the earth, in at least one linear array directed along the radius from the first well to the second well.  Combustion air is provided and the outputs of the tilt meters are amplified and recorded as a function of time.  As the flame front progresses, the overburden behind the front will slump, which will be reflected by a corresponding slump and tilting of the earth surface, which will be reflected in the corresponding readings of the tilt meters.
Patent CA-1131398-A (CA)
Title: Ethylene-alpha-olefin copolymer powder  for powder molding
Inventor: MATSUMOTO KOICHI
IPC: C08F2/00
Filed: 1980-08-18
Granted: 1982-09-07
Abstract: ABSTRACT OF THE DISCLOSURE     Ethylene-alpha-olefin copolymer powder suitable for use in powder molding is disclosed.  This copolymer powder has:  (A) a density of 0.915 through 0.945 g/cm3; (B) a melt index of 1 through 80 g/10 min.; (C) a ratio of the high-load melt index under 21.6 kg to the low-load melt index under 2.16 kg of not more than 30; (D) a bulk density of 0.30 through 0.50; (E) an angle of repose of 25° through 40°, and; (F) a particle size distribution such that the 50% particle diameter of the powder is within the range of 230 to 350 microns and the particle diameter of at least 90% by weight of the total powder is within the range of 149 to 500 microns. This powder is in the form of a sphere, ellipsoid or the similar form and contains no substantial amount of the clear side, arris and thread-like or whisker-like portion, and is obtained from suspension polymerization of ethylene and alpha-olefin(s).
Patent CA-1142662-A (CA)
Inventor: EMBREE MILTON L
IPC: H04M19/04
Filed: 1980-08-19
Granted: 1983-03-08
Abstract: ELECTRONIC TONE RINGER           Abstract An electronic tone ringer responds to ringing signals on a telephone line while being unresponsive to dialing pulses or other signals on the line.  Powered directly from the telephone line the ringer uses current sources to provide a high impedance to the ringer circuitry and an insensitivity to line voltage variations so that reliable operation of the ringer is maintained on long loops and with multiple ringers terminated on the line.  A multitone signal for activating an electroacoustic transducer is provided by frequency modulating a single oscillator within the tone ringer.
Patent CA-1150941-A (CA)
Inventor: ANDREW BARRY E
IPC: B21B45/02
Filed: 1980-08-27
Granted: 1983-08-02
Abstract: ABSTRACT    The invention provides a composition for application to a metal surface, the composition comprising an inorganic nitrite, a benzoate and a carbonate in aqueous solution.  The composition may advantageously be used as a lubricant or coolant during metal working, for example temper rolling, and for protection of coil or sheet packs of steel against corrosion.
Patent CA-1155244-A (CA)
Inventor: CHEA RAMON C W JR
IPC: H04M19/00
Filed: 1980-11-27
Granted: 1983-10-11
Abstract: ABSTRACT OF THE DISCLOSURE Circuit apparatus for supplying a regulated loop current to a two conductor loop telephone line includes first and second line feed resistan-ces, each having one terminal connected to a respective terminal of the telephone line.  A differential amplifier has one input connected to the first resistance and a second input connected to the second resistance in common with the resistance connections to the telephone line terminals. One of the resistances has its other terminal connected to the output of an active circuit means, which circuit operates in a feedback path to supply the desired loop current to the line resistances and therefore the tele-phone line.  The input control signal for the active feedback circuit is derived from summing the output signal from the differential amplifier with a reference signal whose magnitude varies according to the length of the telephone line.  The Feedback path is supplied by the connection between the output of the active feedback circuit and the line resistance as further coupled to an input of the differential amplifier.
Patent CA-1135535-A (CA)
Inventor: SPROUL NOLTE V
IPC: F16H7/08
Filed: 1980-12-15
Granted: 1982-11-16
Abstract: ABSTRACT OF THE DISCLOSURE           A hydraulic tensioning device for maintaining a pre-determined amount of tensioning force on an endless drive belt for the vehicle accessories drive system.  A hydraulic cylinder is adapted to be mounted in a fixed position with respect to the vehicle engine and is operatively connected to the hydrau-lic fluid system of the engine.  A bellcrank mechanism is pivotally mounted on the cylinder and has a belt-engaging idler pulley rotatably mounted on an extended end of one of the levers. The other lever is operatively engaged by the cylinder piston which pivots the idler pulley into tensioning engagement with the drive belt.  A check valve is provided in the incoming hydraulic fluid passage of the cylinder and keeps that portion of the cylinder chamber which is located behind the piston filled with hydraulic fluid to maintaim a constant predetermined tensioning force on the belt whether the engine is running or stopped, and to provide a shock-absorbing damping action for the idler pulley.  The cylinder is connected to the power steering pump of the vehicle to provide a relatively high pres-sure to the cylinder for activation of the piston.
Patent CA-1148666-A (CA)
Inventor: KUO CHARLES C
IPC: H05K3/28
Filed: 1981-01-27
Granted: 1983-06-21
Abstract: PROCESS FOR AIR FIRING OXIDIZABLE CONDUCTORS AND A RESULTING PRINTED       THICK FILM CONSTRUCTION     ABSTRACT OF THE INVENTION           A thick film is formed initially as a paste and made up of such oxidizable conductor ingredients as copper which is then mixed with glass frit and next printed on a non-conductive inert substrate by silk screening.  The silk screen printed thick film with vehicle is then dried, and a coating of boron in suitable paste or paint form having been mixed with a thixotropic organic vehicle is covered over the entirety of the substrate and silk screen printed thick film.  The resulting product after a second air drying is then fired to bond the glass frit-copper as a thick film on-to the substrate, with the copper particles being sintered throughout into a thick film.          Superposed boron, where contiguous with the copper printing, is fused as a protective layer over the copper allowing the sintering of the copper and bonding with the substrate to occur without oxidation of the copper.  Oxidized boron that covers portions of the substrate not occupied by the thick film and not super-posing the copper layer is then washed away and the boron bonded to the copper remains as a protective coating.
Patent CA-1158788-A (CA)
Inventor: ALVAREZ JOSEPH A III
IPC: H04B7/212
Filed: 1981-03-02
Granted: 1983-12-13
Abstract: INITIAL ACQUISITION OF SYNCHRONIZATION FOR A STATION IN A TDMA SATELLITE COMMUNICATION NETWORK                     Abstract A method and apparatus are disclosed for acquiring transmit synchronization at a secondary station with the periodic frame reference bursts from a reference station in a TDMA network in an improved manner to enable the use of full power initial acquisition bursts while also reducing the bandwidth required to complete the initial acquisition operation.  During the first phase, the apparatus at the secondary station bursts an initial acquisition burst during a relatively wide interval in the traffic portion of a TDMA frame and measures a propagation delay factor.  The apparatus then adds the propagation delay factor to the receive frame timing synchronized with the reception of the frame reference bursts at the secondary station to obtain a more accurate adjusted transmit frame timing. The more accurate frame timing is then employed in a second phase to burst a transmit reference burst from the secondary station during a relatively narrower interval in the control portion of periodic, non-consecutive ones of the TDMA frames and the apparatus measures a propagation delay correction factor.  The propagation delay correction factor is then used to adjust the phase of the transmit frame timing so as to maintain the synchronization of the secondary station with the reference station.  At the end of the second phase the secondary station's normal traffic trans-mission operations can take place, with the transmit reference burst being periodically transmitted in the control portion of non-consecutive TDMA frames in order to achieve a long-term maintenance of synchronization between the secondary station and the reference station.          The dual use of the traffic portion assigned to the secondary station for both the coarse adjustment of the transmit clocks of the station during the first phase and the transmission of normal traffic from this or other stations during the second phase of transmit acquisition for the station enables the use of a full power initial acquisition burst, while reducing the overall bandwidth requirements for the acquisition operation by completing the function with the transmit reference burst which requires substantially less bandwidth due to its narrower assigned interval and less frequent transmission.
Patent CA-1141160-A (CA)
Inventor: ATO JUNICHI
IPC: F27D3/14
Filed: 1981-03-12
Granted: 1983-02-15
Abstract: ABSTRACT OF THE DISCLOSURE:     POROUS NOZZLE FOR MOLTEN METAL VESSEL        A refractory porous nozzle which is arranged at the bottom of a molten metal vessel, characterized in that said porous nozzle is made in one body having a flange portion at its upper portion and a cylindrical portion at its lower portion, the outer peripheral surface of the main body of said porous nozzle is gas-tightly enclosed with a steel shell, a gas pool is provided between the bottom surface of said flange portion and the outer peripheral surface of said cylindrical portion, and the inner peripheral surface of said steel shell, and the gas pool is communicated with an inert gas feeding pipe.
Patent CA-1155858-A (CA)
Inventor: CARSON JOHN R
IPC: C07D207/337
Filed: 1981-03-17
Granted: 1983-10-25
Abstract: PREPARATION OF 5-(ARYLCYANOHYDROXY)METHYL-1-LOWERALKYL-Abstract 5-(Arylcyanohydroxy)methyl-1-loweralkylpyrrole-2-acetic acid derivatives are prepared by the protic acid catalyzed reaction of aroylcyanides with 1-loweralkylpyrrole-2-acetic acid derivatives, which is then converted by treatment with alkali metal hydroxides or heat to form 5-aroyl-1-loweralkylpyrrole-2-acetic acid or derivatives thereof.  In addition, 5-aroyl-1-loweralkylpyrrole-2-acetic acid derivatives are prepared by the reaction at above 100°C of an aroylcyanide with a 1-alkylpyrrole-2-acetic acid derivative.
Patent CA-1183102-A (CA)
Inventor: PETERS JOHN W
IPC: C30B25/00
Filed: 1981-05-19
Granted: 1985-02-26
Abstract: ABSTRACT OF THE DISCLOSURE The specification discloses a low temperature pro-cess for depositing oxide layers on a substrate by photo-chemical vapor deposition, by exposing the substrate to a selected vapor phase reactant in the presence of photo-chemically generated neutral (unionized) oxygen atoms. The oxygen atoms react with the vapor phase reactant to form the desired oxide, which deposits as a layer on the substrate.  The use of photochemically generated neutral oxygen atoms avoids damage to the substrate due to charge bombardment or radiation bombardment of the sub-strate.  The deposited oxide layer may optionally incorporate a selected dopant material in order to modify the physical, electrical, or optical character-istics of the oxide layer.
Patent CA-1162431-A (CA)
Inventor: PERINO MAURO
IPC: H01L31/02
Filed: 1981-06-03
Granted: 1984-02-21
Abstract: ABSTRACT OF THE DISCLOSURE          An optical coupler allowing contemporaneous transmission and reception of two light signals through the same optical fibre by introducing very low attenuations, owing to the use of a large surface photodetector, whose centre is traversed by a microlens.
Patent CA-1174245-A (CA)
Inventor: SUPP EMIL
IPC: C07C29/152
Filed: 1981-07-21
Granted: 1984-09-11
Abstract: ABSTRACT OF THE DISCLOSURE:          In a method of controlling the equilibrium con-ditions and of simultaneously producing steam under high pressure in the production of methanol by a reaction of oxides of carbon and of hydrogen-containing gases at temper-atures of 200 to 300° C under a pressure of 20 to 100 bars at a copper-containing catalyst, which is contained within the reactor in tubes, which are indirectly cooled by boiling water under pressure, wherein the resulting steam is with-drawn together with circulating water and is separated from the water, the water is recycled and the evaporated water is replaced by feed water. It is proposed to carry out the method in such a manner that a perforated thin intermediate bottom is provided, which is spaced 20 to 150 cm over the lower tube plate, that the reactor is fed with the circu-lating water above that intermediate bottom and with the feed water below that intermediate bottom, that the gaseous reaction mixture is cooled by 20 to 50° C in the lower part of the catalyst-filled tubes in a tube length of 20 to 150 cm, that the feed water is heated in the reactor to temper-atures of 230 to 290° C with evaporation of part of the feed water, that the resulting mixture of steam and circulating water is separated, that the circulating water is recycled and the resulting high-pressure steam is withdrawn. In this method, steam under a pressure above 60 bars can be produced whereas only a pressure of 40 bars has been reached before.
Patent CA-1162072-A (CA)
Inventor: FRANKENFIELD DAVID J
IPC: F16B13/08
Filed: 1981-08-28
Granted: 1984-02-14
Abstract: Abstract of the Disclosure The foot plates of a tilt-up wall bracing system are anchored to a concrete floor slab by means which positively clamp the floor slab to the foot plates. The clamping means include a throughbore in the floor slab, a threaded and L-shape anchor bolt, a wedging spike, and a nut in threaded engagement with the anchor bolt.
Patent CA-1133991-A (CA)
Inventor: LINDEN ROLF W
IPC: A61B5/02
Filed: 1981-09-23
Granted: 1982-10-19
Abstract: ABSTRACT OF THE DISCLOSURE     There is disclosed herein a wristwatch size cardiac monitoring appar-atus which is worn on the wrist of one arm.  A conductive material housing acts as one electrode when held firmly in contact with the wrist of the arm on which it is worn.  A finger of the other limb is placed on a receiving electrode of the casing which acts as the second electrode.  Together, these two electrodes provide a Lead I electrocardiac signal to electronics within the housing.  The second electrode consists of a metal layer on which is placed a dielectric mater-ial and when the finger is placed on top of the dielectric material, a capacitor is formed and the electric signal on the finger is transferred to the metal lay-er.  Additionally, there is described circuitry which is used to operate the rate monitor.  This circuitry includes means for detecting a QRS complex and for causing a count in beats per minute to be displayed, manifesting the heartbeat rate.  The circuitry includes means for updating the heartbeat rate displayed every two seconds and for automatically turning the system off when no heartbeats are detected for a six second interval.
Patent CA-1196653-A (CA)
Inventor: SCHMIDT WERNER
IPC: C07F7/18
Filed: 1981-10-01
Granted: 1985-11-12
Abstract: ABSTRACT OF THE DISCLOSURE:         The present invention relates to a stable aqueous solution of hydrolysed alkyltrialkoxysilanes.  These solutions can be used to impregnate materials in order to render them hydrophobic.
Patent CA-1161751-A (CA)
Inventor: SZARKA DAVID D
IPC: E21B23/02
Filed: 1981-10-30
Granted: 1984-02-07
Abstract: ABSTRACT    An improved anchor positioner for use with anchors incorporated in a liner or casing of a well bore.  The anchor positioner comprises upward-facing spring arms having downward facing shoulders on the exterior thereof, the spring arms, when extended radially outward, engaging a shoulder on an anchor to locate a tool string in a well bore.  An indexing head, rotatable in response to axial reciprocation of the tool string, retracts the spring arms from the anchor.  A subsequent reciprocation of the tool string will cause the spring arms to extend radially outward and to be locked in the extended position by contact with the indexing head, thus locking them into the anchor against downward movement.  Retraction of the spring arms is effected by force from contact with inwardly-inclined faces on the indexing head, and extension of the spring arms is effected by outward force exerted by contact of the inside of the spring arms with axial grooves on the outside of the indexing head.  Rotation of the indexing head and therefore change of radial alignment is effected through a pin and slot mechanism.
Patent CA-1175415-A (CA)
Title: Procede de preparation de nouveaux derives steroides  3-amino substitue
Inventor: DERAEDT ROGER
IPC: C07J13/00
Filed: 1981-11-20
Granted: 1984-10-02
Abstract: L'invention concerne un procédé pour prépares les dérivés de formule (I), ainsi que leurs sels avec les acides pharmaceutiquement acceptables: <IMG> (I) où W est H ou OH ou, avec X, éthylidène, X est C2H5, <IMG> ou <IMG> ou, avec W, éthylidène; les traits ondulés symbolisent des liaisons en .alpha. ou .beta.; R1 est H ou CH3, R2 est H, alcoyle (1-5C), hydroxyalcoyl (2-5C); R3 est H, alcoyle (1-5C), hydroxyalcoyl (2-5C), acyl ou alcoxycarbonyl (2-8C) ou un radical dérivé d'un acide .alpha.-aminé ou d'un peptide. Les dérivés de formule (I) sont utiles comme médicaments capables, notamment, de stimuler les réactions immunitaires.
Patent CA-1193067-A (CA)
Inventor: VOGEL ALFREDO
IPC: B22C5/08
Filed: 1981-12-16
Granted: 1985-09-10
Abstract: Abstract:     A method and apparatus for treating granular materials which require to be heated to drive off volatile constituents and which require to be cooled, for example foundry sand containing an organic binder.  The method comprises the step of maintaining a mass of the material at a treatment temperature lying in the range 250°C-400°C for between four and thirty hours.  The mass may be initially heated by virtue of a manufacturing process in which the mass has been previously used.  Alternatively, the mass may be initially heated by a pre-heating step such as heating in a fluidised bed.  Alternatively, the mass may be heated by being placed in heat transfer relationship with a second mass of the material which has been previously heated, for example, in a fluidised bed.  Apparatus for performing the method is also disclosed.
Patent CA-1185251-A (CA)
Inventor: DUTRA GERARD A
IPC: A01N57/22
Filed: 1981-12-23
Granted: 1985-04-09
Abstract: Abstract of The Disclosure This disclosure relates to arylsulfenyl derivatives of benzyl and aryl esters of N-phosphono-methylglycines.  This disclosure further relates to herbicidal compositions containing arylsulfenyl derivatives of benzyl and aryl esters of N-phosphonomethylglycines, to the use thereof, and to herbicidal methods employing such compounds and compositions.
Patent CA-1161736-A (CA)
Inventor: BIRNBOIM HYMAN C
IPC: C12Q1/68
Filed: 1981-12-29
Granted: 1984-02-07
Abstract: TITLE               FLUORESCENT DETECTION OF DNA DAMAGE     INVENTOR                        Hyman C. Birnboim ABSTRACT OF THE DISCLOSURE           A sensitive method for detecting damage to DNA, e.g. resulting from exposure of living cells or whole organisms to low doses of radia-tion or chemicals, is described comprising:  partial lysis of exposed cells to access the DNA; alkaline denaturing the DNA; after a selected interval stopping the denaturation by lowering the pH to a selected value; rendering the lysate homogeneous; adding an appropriate fluores-cent dye which interacts preferentially with double-stranded DNA and measuring the resulting fluorescence.  The decrease in fluorescence (compared to that before denaturation) is a measure of the rate of DNA denaturation which is directly proportional to the extent of DNA damage. Several factors, particularly the lowered pH at which the denaturation is stopped, have been found important for increased sensitivity.  The method is suitable for monitoring the effect on DNA in living cells of environ-mental factors, drug and radiation therapy, and for toxicology studies.          A kit adapted for carrying out the test method is described.