baber/WOPTO huggingface dataset:
Patent CA-1129177-A (CA)
Inventor: MANOR SHALOM
IPC: C01B7/03
Filed: 1981-04-07
Granted: 1982-08-10
Abstract: A B S T R A C T OF THE  D I S C L O S U R E            The present invention relates to a process for the manufacture of potassium nitrate from potassium chloride and nitric acid.          According to the invention, potassium chloride and nitric acid are reacted in an aqueous medium at a temperature in the range of between -25°C to +10°C.  From the brine solution obtained after the separation of the resulting potassium nitrate, nitric acid is extracted by an organic solvent solution containing at least one compound selected from the group consisting of ketones having five to ten carbon atoms, straight or cyclic polyethers having molecular weight in the range of 100 to 1000, polyalkylene glycols slightly miscible in water and having molecular weight in the range of 1000 to 3000, and organic esters of phosphoric acid, phosphonic acid and phosphinic acid, or mixtures thereof, in an organic diluent which does not substantially extract hydrochloric acid.  The remaining aqueous solution consists of a substantially nitrate-free brine containing hydrochloric acid.  The NO3 -loaded solvent is washed, the nitric acid as well as the organic solvent being respectively recycled in the process.          The process saves appreciable amounts of nitric acid.  Optionally, pure hydrochloric acid could be obtained from the nitrate-free brine, by distillation or by solvent extraction using butanols or pentanols as extractants.
Patent CA-1154407-A (CA)
Inventor: SHELTON ROBERT N
IPC: A47F7/02
Filed: 1981-05-13
Granted: 1983-09-27
Abstract: ABSTRACT OF THE DISCLOSURE             In a preferred embodiment of the invention, the housing unit for supporting a rotary commodity display rack comprises a rectangular bottom box, two elongated C-shape columns, a rectangular top box and a transparent or semi-transparent back panel. The rotary display rack is supported between the two boxes. The housing unit can be used as a single unit, but when two units are combined together, three different configurations are possible, side-by-side, back-to-back and face-to-face.
Patent CA-1162413-A (CA)
Inventor: BAILLIE LLOYD A
IPC: G01L13/04
Filed: 1981-05-14
Granted: 1984-02-21
Abstract: A TILT INVARIANT PRESSURE SENSING DEVICE ABSTRACT OF THE INVENTION Disclosed is an improvement to an apparatus for measuring and/or recording small pressure differences by means of a manometer-like device having a reservoir and a measuring cell, wherein the improvement comprises having the reservoir of the manometer-like device at least partially surrounding the measuring cell. A substantially tilt invari-ant pressure measuring apparatus results. Accuracies of plus or minus about 0.05 dynes/square centimeters are achieved by means of the disclosed device which can measure, record and self-calibrate.
Patent CA-1156852-A (CA)
Title: Brick panel insulation with load bearing clip
Inventor: FRANCIS GERALD T
IPC: E04C2/00
Filed: 1981-06-19
Granted: 1983-11-15
Abstract: BRICK PANEL INSULATION WITH LOAD BEARING CLIP                 ABSTRACT OF THE DISCLOSURE A brick panel wall construction is disclosed including a backing board for a brick panel which is formed of extruded plastic foam for moisture resistance and insulation. The wall construction includes a plurality of brick panels having plastic foam backing boards and a plurality of load bearing clip members that support the bricks which are secured to the backing boards. The load bearing clip members are sandwiched within the tongue and groove joints between adjacent upper and lower brick panels. Each load bearing member includes a protruding terminal lip that extends into the joint area between the bricks of adjacent panels. Mortar is packed or tuck pointed into the joint area to cover the protruding lips of the load bearing clips, and the clips become the support for the bricks that are secured to the plastic foam backing boards. Thus, the invention provides an improved insulating and moisture resistant backing board, and a direct mechanical connection of the bricks to the wall supporting structure such that the support for the bricks is not dependent upon the non-structural backing board.
Patent CA-1176234-A (CA)
Inventor: CHANCE GLENN G
IPC: E21B17/22
Filed: 1981-06-22
Granted: 1984-10-16
Abstract: Disclosure  5927 INTERMEDIATE WEIGHT DRILL STRING MEMBER               Abstract of the Disclosure An improved intermediate weight member to be put in a drill string between the collars and the drill pipe which has a spiraled outer surface, and which is so configured as to provide a uniform bending moment of inertia over its length including the slip area.
Patent CA-1187345-A (CA)
Inventor: PHILLIPS VICTOR L
IPC: B63B21/22
Filed: 1981-07-10
Granted: 1985-05-21
Abstract: ABSTRACT         An anchor is provided with a fluke pivotally attached to a standard.  A latch mechanism controls movement between the fluke and standard and is released upon application of a force in a pre-determined direction.  The standard is then free to pivot to a position in which the fluke and standard are aligned.  This facilitates removal of the fluke  from the sea bed.  Sprags are provided on the rear of the fluke  so that dragging of the anchor along the sea bed causes the fluke  to rotate on the standard and be repositioned for engagement with the sea bed.  Thus the anchor is able to reset upon tide or wind changes.
Patent CA-1165854-A (CA)
Inventor: RUSSELL ANTHONY W
IPC: E21B17/02
Filed: 1981-08-26
Granted: 1984-04-17
Abstract: S P E C I F I C A T I O N "Improvement in or Relating to Apparatus for Signalling within a Borehole while Drilling"                 ABSTRACT OF THE DISCLOSURE         A down-hole signal generator for a mud-pulse telemetry system comprises a flow constrictor defining a throttle orifice for the mud passing along a drill string, a throttling member displaceable with respect to the throttle orifice to modulate the mud pressure for the purpose of transmitting measurement data up the drill string, and a turbogenerator.  The turbogenerator incorporates an annular impeller surrounding a casing and arranged to be driven by the mud passing along the drill string, and a rotatable magnet assembly disposed in a mud-free environment within the casing.  The impeller includes an electrically conductive drive ring and the rotatable magnet assembly    includes rare earth magnets, so that, when the impeller is rotated by the mud flow, eddy currents are induced in the drive ring by the magnetic field associated with the magnets and the magnet assembly is caused to rotate with the impeller by virtue of the interactive between the magnetic field associated with the magnets and the magnetic field associated with the induced currents.  In this manner torque may be imparted to an electrical generator within the casing without a rotating seal having to be provided between the impeller and the generator.
Patent CA-1184592-A (CA)
Inventor: SAHAY RAVI B
IPC: G03G15/20
Filed: 1981-10-29
Granted: 1985-03-26
Abstract: ABSTRACT     The present invention is a machine control having a programmable non-volatile memory and microprocessor to control power to a fuser lamp in a manner to adapt the machine to distinct power outlets. The non-volatile memory is programmed to indicate the availability of a particular power output. The control monitors the memory and in turn gates a triac controlling the fuser lamp to apply the maximum possible power to the fuser. If the machine is operating at a 3.0 of a 2.2 kva outlet, full power could not be delivered to the fuser while the machine is operating. The machine would adapt to operate at reduced power to the fuser until the fuser temperature drops below a minimum temperature level.
Patent CA-1167548-A (CA)
Inventor: STEVENSON THOMAS T
IPC: F02B3/06
Filed: 1981-11-16
Granted: 1984-05-15
Abstract: Engine Control System Abstract An electronic engine control system utilizing a digital microprocessor for controlling the timing mechanism and fuel pump rack limit to set the engine timing of, and maximum allowable rate of fuel delivery to, an interval combustion engine so that maximum engine performance is obtained with smoke and emissions limited to required EPA levels.  A plurality of timing maps are provided for different modes of engine operation, each map having predetermined value timing control signals programmed therein corresponding to the optimal timing advance of a particular engine speed, or particular optimal timing advance of a particular engine speed, or particular combination of engine speed and position of the fuel rack.  A timing map selector identifies the mode of engine operation and selects the appropriate timing map to control the timing mechanism by the particular programmed signal for the existing engine speed and fuel rack position.  A similar map will output a particular programmed fuel/air signal in accordance with the existing engine speed and timing, the fuel/air signal having been predetermined to correspond to the maximum fuel/air ratio for fuel combustion to meet EPA limits for that engine speed and timing.  The fuel/air signal is multiplied in accordance with existing manifold pressure and the resultant fuel delivery signal is used to set the rack limit for maximum allowable fuel delivery to the engine.
Patent CA-1165840-A (CA)
Inventor: JASPER STEVEN C
IPC: G01R23/02
Filed: 1981-12-04
Granted: 1984-04-17
Abstract: Abstract of the Disclosure An apparatus and method for determining the period and frequency of a signal interfering with a desired Loran C signal are provided.  A sample of the interfering signal is generated at a time corresponding to the peak of the autocorrelation function of the interfering signal with respect to the predetermined pulse tracking refer-ence point of the Loran C signal.  Indicia of the period and frequency of the interferer is obtained from the timing of the sample generated at the autocorrelation function peak.
Patent CA-1177471-A (CA)
Inventor: FARMERIE JOHN J
IPC: C01B31/08
Filed: 1982-02-01
Granted: 1984-11-06
Abstract: "IMPROVED REGENERATION OF CAUSTIC   IMPREGNATED ACTIVATED CARBON"               Abstract of the Disclosure An improved process for the regeneration of activated carbon impregnated with caustic is described.  A two stage wash with caustic solutions of about 50 percent and about 15 percent removes both organic and sulfur contaminants. This regeneration returns the carbon essentially to its original capacity for adsorption of malodorous compounds.
Patent CA-1174033-A (CA)
Inventor: GROSBOIS JEAN
IPC: C01B33/04
Filed: 1982-04-16
Granted: 1984-09-11
Abstract: Silane, a useful intermediate in the production of silicon, is facilely quantitatively prepared by hydrogenating chlorosilanes in a bath of molten salts, said molten bath comprising a ternary mixture of lithium chloride and two other metal chlorides, such two other metal chlorides being either two different alkaline earth metal chlorides, or one alkaline earth metal chloride and one alkali metal chloride, or two different alkali metal chlorides, and said ternary mixture having a melting point not in excess of about 400 DEG  C.
Patent CA-1181845-A (CA)
Inventor: BEST JOHN S
IPC: G11C11/14
Filed: 1982-05-21
Granted: 1985-01-29
Abstract: GAP TOLERANT MERGE ELEMENT FOR CONTIGUOUS-DISK BUBBLE DEVICES          Abstract of the Disclosure A gap tolerant merge element for contiguous-disk bubble devices is disclosed.  The merge element includes one input track with a tip portion substantially facing the cusp portion of a second input track to form a merge region.  An output track is associated with the merge region. In a preferred embodiment, the merge element is passive and does not have a conductor.  In another embodi-ment, the merge element is active and does have a conductor.
Patent CA-1205809-A (CA)
Inventor: CHEKROUN ISAAC
IPC: C07D333/32
Filed: 1982-06-29
Granted: 1986-06-10
Abstract: ABSTRACT       The present invention provides a process for the preparation of 2-(thien-2-yl)- and 2-(thien-3-yl)-ethylamine derivatives of the general formula:-                        (I) in which R1, in the 2-, 3-, 4- or 5-position, is a hydrogen or halogen atom, a nitro, amino, cyano or carboxyl group, a linear or branched alkyl or alkoxy radical or a heterocyclic or non-heterocyclic aromatic radical, which is optionally mono- or polysubstituted, R2 is a hydrogen atom, a linear or branched alkyl radical or a heterocyclic or non-heterocyclic aromatic radical, which is optionally mono- or polysubstituted, and Ar is a heterocyclic or non-heterocyclic aromatic radical, which is optionally mono- or polysubstituted, wherein a compound of the general formula:-                      (II) in which X and Y, which can be the same or different, are alkyl, alkoxy, aryl, aryloxy, diarylamino or dialkylamino radicals, is condensed with a carbonyl compound of the general formula:-                       (III) in which R1 is as defined above, to give a compound of the general formula:-             (IV) in which X, Y and R1 are as defined above, which is treated with a base B?M? to give a carbanion of the general formula:-                          (V) in which X, Y and R1 are as defined above, which is converted, by the action of heat, into the derivative of the general formula:-                   (VI) in which X, Y and R1 are as defined above, and then, after taking up in water, into a derivative of the general formula:-                            (VII) in which X, Y and R1 are as defined above, which is treated successively with a base B'?M'? and then with a carbonyl compound of the general formula:-                      (VIII) in which Ar and R2 are as defined above, to give a compound of the general formula:-                        (IX) in which R1, R2 and Ar are as defined above, and then, by treatment with a reducing agent, converted into a compound of general formula (I).
Patent CA-1200311-A (CA)
Inventor: NEMET MIHALY
IPC: H01Q1/27
Filed: 1982-07-09
Granted: 1986-02-04
Abstract: ABSTRACT      An antenna arrangement for personal radio transceivers in which a main antenna is extending out from the housing of the transceiver excited by the high frequency connector thereof and an auxiliary antenna is coupled to the cold terminal of the connector to form a counterweight to the main antenna, and both the main and auxiliary antennas are resonant and shorter than the quarterweve-length,  whereby the housing gets to a potential minimum and the effects of the close presence of the human body on the radiational properties will be reduced,
Patent CA-1200017-A (CA)
Inventor: HUANG HO C
IPC: H01L29/417
Filed: 1982-08-24
Granted: 1986-01-28
Abstract: ABSTRACT           Electrodes of a high power, microwave field effect transistor are substantially matched to external input and output networks.  The field effect transistor includes a metal ground plane layer, a dielectric layer on the ground plane layer, a gallium arsenide active region on the dielectric layer, and substantially co-planar spaced source, gate and drain electrodes having active segments covering the active region.  The active segment of the gate electrode is located between edges of the active segment of the source electrodes.  The gate and drain electrodes include inactive pads remote from the active segments thereof.  The pads are connected direct-ly to the input and output networks.  The source electrode is connected to the ground plane layer.  The space between the electrodes and the geometry of the electrodes estab-lish parasitic shunt capacitances and series inductances that provide substantial matches between the input network and the gate electrode and between the output network and the drain electrode.  Many of the devices are connected in parallel and share a common active region, so that each pair of adjacent devices shares the same source electrodes and each pair of adjacent devices shares the same drain electrodes.  The gate electrodes for the parallel devices are formed by a continuous stripe that extends between adjacent devices and is connected at different points to the common gate pad.
Patent CA-1172105-A (CA)
Inventor: OLDHAM DELBERT J
IPC: F41F3/06
Filed: 1982-09-15
Granted: 1984-08-07
Abstract: AIRBORNE MISSILE LAUNCHER            ABSTRACT OF THE DISCLOSURE    An airborne missile launcher for air launching of man-portable, tube-launched missiles includes a central support frame with attachment means for detachable attachment to an aircraft or other launching platform, with a central frame member having a launch tube saddle support assembly at each side of the frame member with quick detachable clamp means and an alignment guide for quickly positioning and securing launch tubes into position with auto connecting means for automatically connecting the electronics control system and coolant gas to the launch tube assembly upon clamping the assembly into position. An aerodynamic shell encloses the support structure and includes a quick release cover for providing access to the tube clamp assemblies for loading and unloading launch tubes.
Patent CA-1190023-A (CA)
Inventor: MUEHLBAUER GERHARD
IPC: B22D41/13
Filed: 1982-10-05
Granted: 1985-07-09
Abstract: ABSTRACT OF THE DISCLOSURE:     A carrying tower for a metallurgical vessel includes at least one carrying arm cantilevering from a non-rotatable carrying column and pivotable about the carrying column, which carrying arm carries at least one metallurgical vessel. A pivot bearing is provided between the carrying arm and the carrying column. In order to enable a simple check, maintenance and a quick removal of the pivot bear-ing with the carrying arm remaining on the carrying tower, a single pivot bearing accommodating axial and radial forces as well as tilting moments, with a lower side shoulder of a first bearing race, rests on a supporting surface arranged on the upper end of the carrying column.          The carrying arm is mounted so as to be suspended on a second bearing race of the pivot bearing.
Patent CA-1236851-A (CA)
IPC: C07C49/84
Filed: 1982-10-13
Granted: 1988-05-17
Abstract: ABSTRACT OF THE DISCLOSURE    A compound of Formula II:                                              (II) wherein:    X is nitro (-NO2), a halogen, or cyano (-CN);    Y is hydrogen or chlorine; Z is chlorine when Y is chlorine or Z is hydrogen when Y is chlorine or hydrogen; and R is hydrogen or an alkyl of up to three carbon atoms.  These compounds are useful for postemergence and preemergence control of weeds and in the preparation of novel compounds which are used in the same fashion.
Patent CA-1189152-A (CA)
Inventor: CHURCH JOHN G
IPC: B23K9/16
Filed: 1982-11-05
Granted: 1985-06-18
Abstract: ABSTRACT An electric arc welding gas system utilizing a welding gas compris-ing a mixture of argon, helium, carbon dioxide and oxygen; electrode currents in the range of 100 to 1100 amperes so as to form electrode metal globules of at least the size of the electrode diameter at the rate of 400 to 1200 globules per second.
Patent CA-1200509-A (CA)
Inventor: JEHLE NIKOLAUS
IPC: C08G85/00
Filed: 1982-11-22
Granted: 1986-02-11
Abstract: Process for purifying organic solutions Abstract Photopolymerisable resin polymers and, where present, conventional additives for said polymers, are removed from organic solutions by adsorption on activated carbon.          Solutions containing from 1 to 150 g of polymer of molecu-lar weight in the range of 1000 to 500000 per liter of solvent at 20 to 150°C are brought into contact with 10 to 500 g of activated carbon per liter of solvent, the polymer or polymer and additives are adsorbed onto the carbon and, subsequently the solvent is isolated.
Patent CA-1190245-A (CA)
Inventor: UENO RYUZO
IPC: C07C51/00
Filed: 1982-12-07
Granted: 1985-07-09
Abstract: ABSTRACT OF THE DISCLOSURE          A process for the selective production of 2-hydroxynaphthalene-6-carboxylic acid, which comprises continuously reacting potassium .beta.-naphtlolate with carbon dioxide at a reaction temperature in the range of 230 to 350°C and under a carbon dioxide pressure suitable for the reaction temperature and selected within the range of 1 to 20 kg/cm2(G) while removing the by-product .beta.-naphthol by using a reaction medium having a specific gravity of 0.6 to 1.5 and being capable of dissolving .beta.-naphthol but substantially incapable of dissolving potassium .beta.-naphtholate.
Patent CA-1182155-A (CA)
Inventor: ARIMOTO SATOMI
IPC: H01H33/90
Filed: 1983-01-18
Granted: 1985-02-05
Abstract: ABSTRACT OF THE DISCLOSURE           A self extinguishing type gas circuit breaker includes a body member having a first end connected to a terminal plate and a second end with a nozzle formed of electrical insulation material and defining a nozzle opening in communication with the interior of the body member.  The interior of the body member includes an arcing chamber adjacent the nozzle and a  gas storage chamber, such chambers being filled with an arc extinguishing gas.  A stationary arc contact is electrically connected to the terminal plate and is positioned within the body member at a location con-fronting the nozzle opening.  A movable arc contact is mounted for movement through the nozzle opening between a circuit breaker closed position, whereat the movable arc contact extends through the nozzle into closed circuit contact with the stationary arc contact, and a circuit breaker open position, whereat the movable arc contact is spaced outwardly from the nozzle.  Outward movement of the movable arc contact from the closed position to the open position during application of an arcing current between the stationary and movable arc contacts creates an arc. The energy of this arc increases the pressure of the arc extinguishing gas in the arcing chamber and then in the gas storage chamber.  Partitions divide the gas storage chamber into a plurality of sub-chambers.  A valve is positioned between the arcing chamber and at least some of the outlets of the sub-chambers and is mounted for movement away from the arcing chamber in response to the increase in pressure of the gas therein.  The valve connects the arcing chamber with a number of the sub-chambers sufficient to ensure that, dependent on the relative level of the arcing current and the pressure in the arcing chamber, the pressure of the gas stored in such number of sub-chambers will achieve extinction of the arc.
Patent CA-1200632-A (CA)
Inventor: FRYE ROBERT B
IPC: C08K5/09
Filed: 1983-01-28
Granted: 1986-02-11
Abstract: ABSTRACT OF THE DISCLOSURE      There is provided flame retardant thermoplastic compositions and masterbatch formulations effective for rendering thermoplastics flame retardant.   A typical flame retardant composition could be comprised of 50 to 97 percent by weight of thermoplastic, 1 to 40 percent of a silicone base such as a linear silicone fluid or gum, 1 to 20 percent of  a metal organic compound such  as magnesium stearate, and 1 to 20 percent of a silicone resin such as MQ resin which is soluble in the silicone base.