baber/WOPTO huggingface dataset:
Patent CA-1179413-A (CA)
Title: Procede et dispositif pour la detection du sous-  gonflage d'un pneumatique d'un atterrisseur d'aeronef
Inventor: DAVID ROBERT C
IPC: G01G19/07
Filed: 1981-11-17
Granted: 1984-12-11
Abstract: L'invention consiste en un procédé et en un dispositif pour détecter le sous-gonflage d'un pneumatique d'un atterrisseur d'un aéronef en cours de roulage. L'atterrisseur est formé d'au moins un boggie comportant un balancier articulé autour d'un axe transversal à un fût reliant le balancier à la structure de l'aéronef. Ce dernier axe est situé en un point médian entre les extrémités du balancier et définit partiellement deux parties de balancier se prolongeant respectivement à partir de l'axe aux extrémités opposées du balancier, les roues de chaque paire étant disposées de part et d'autre du balancier. Le procédé est caractérisé en ce que l'on dispose, sur chacune des parties du balancier comprises entre l'axe d'articulation au fût et la paire de roues correspondante, l'un de deux dispositifs de détection de torsion comportant des agencements de pont de jauges de contrainte susceptible de délivrer un signal représentatif de la torsion de la partie de balancier autour de son axe longitudinal. Ensuite, les signaux provenant de chacun des dispositifs de détection de torsion sont comparés lorsque l'aéronef est en cours de roulage. Puis, on effectue la soustraction de ces signaux. Enfin, on actionne un dispositif d'alarme indiquant le-sous-gonflage d'un pneumatique lorsque la différence obtenue par la soustraction dépasse une valeur de référence pré-établie.
Patent CA-1166226-A (CA)
Inventor: UMEDA HIROYUKI
IPC: G11B23/087
Filed: 1981-11-20
Granted: 1984-04-24
Abstract: ABSTRACT OF THE DISCLOSURE         An adapter for a miniature type tape cassette has an external form and size smaller than those of a standard type tape cassette, where the miniature type tape cassette is used with a recording and/or reproducing apparatus of a type different from a standard type recording and/or reproducing apparatus for performing recording and/or reproduction when loaded with the standard type tape cassette.  The adapter comprises an adapter case having an external form and size substantially equal to those of the standard type tape cassette, an accommodating part for accommodating the miniature type tape cassette, and a tape guiding member provided within the adapter case, for guiding a tape drawn out from the miniature type tape cassette so as to form a predetermined tape path within the adapter case.
Patent CA-1136860-A (CA)
Inventor: PAMMENTER ROBERT V
IPC: C22B9/00
Filed: 1981-12-15
Granted: 1982-12-07
Abstract: Abstract:       A process for precipitating ferric iron as a jarosite from a sulphate solution containing ferric iron, free acid and valuable non-ferrous metals, characterised by diluting the said solution with a diluent solution of low acidity so that the ferric iron concentration of the diluted solution lies in the range 5 to 35 grams per litre and the free acid concentration lies in the range 5 to 40 grams per litre, heating to a temperature up to the boiling point at atmospheric pressure in the presence of at least one ion from the group consisting of sodium, potassium and ammonium ions, and in the presence of recycled jarosite, without the addition of any neutraliz-ing agent, so that substantially all of the ferric iron is precipitated as a jarosite, followed by separation of the jarosite from the solution, thereby producing a jarosite contaminated with only minor amounts of non-ferrous metals, and a solution containing recoverable valuable non-ferrous metals.
Patent CA-1201844-A (CA)
Title: Phenolic resin compounds
Inventor: BLAIR ROBERT E
IPC: C08G8/24
Filed: 1982-01-04
Granted: 1986-03-11
Abstract: PHENOLIC RESIN COMPOUNDS A phenol-aldehyde resole resin is disclosed which is produced in the presence of a plasticizing amount of a phenolic ester of a fatty acid. These compositions are characterized by improved flexibility and moisture resistance. The resins are especially useful for impregnating cellulosic materials. Particular utility has been found for these compositions as filter elements wherein the impregnated cured paper can be corrugated after curing without cracking to provide an economical and superior filter paper.
Patent CA-1190308-A (CA)
Inventor: PERLMUTTER MICHAEL S
IPC: H01S3/083
Filed: 1982-01-21
Granted: 1985-07-09
Abstract: ELECTROMAGNETIC WAVE REFLECTIONS ABSORBER   Abstract A photon absorber minimizes the mixing of unwanted re-flected electromagnetic waves with the main clockwise and counter-clockwise propagating electromagnetic waves of a ring laser gyroscope.  A round hole in the middle of the absorber allows the main waves to pass and an angulated front surface deflects reflected waves away from the main waves.  Most of the reflected waves which impinge on the photon absorber are absorbed.  A photon absorber is fabri-cated from light absorbing filter glass with anti-reflection coatings or from beryllium-copper with an absorptive coating.
Patent CA-1193222-A (CA)
Inventor: VERBERNE WIM M J C
IPC: C25D3/56
Filed: 1982-02-05
Granted: 1985-09-10
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention is based on the dis-covery that addition of certain amino alcohol compounds enhance the brightening of deposits incorporating tin and cobalt or zinc and improve the process, rendering it capable of producing good deposits with less careful control on the thickness of the coating being required.         According to the present invention a bath composition for electroplating a bright alloy deposit of cobalt and tin or cobalt and zinc on a substrate, is characterized by the present of a brightening amount of a compound having the formula:      wherein:         R1 represents an alkyl group having 1 to Y carbon atoms or an alkyl group having from 1 to Y carbon atoms at least one of which is substituted by a hydroxyl group; and R2 or R3 or both represent a hydrogen atom or an alkyl group of 1 to Y carbon atoms or an alkyl group of 1 to Y carbon atoms at least one of which is substi-tuted by a hydroxyl group or an amino group and R2 and R3 may be the same or different and may be the same as or different to R1, Y being an integer from 2 to 6 and preferably 2, 3 or 4.
Patent CA-1174246-A (CA)
Inventor: YOSHIMURA NORIAKI
IPC: B01J23/00
Filed: 1982-02-15
Granted: 1984-09-11
Abstract: Abstract of the Disclosure A process for producing n-octanol which comprises the steps of (i) reacting butadiene with water in a solution containing water, a carbonate and/or bicarbonate salt of a monodentate tertiary amine having a basicity constant (pKa) of not less than 7, and sul??lane in the proportions of 25-55 percent, 5-30 percent and 30-65 percent by weight based on the reaction mixture, respectively, in the presence of a palladium compound and a hydrophilic monodentate phosphine in an amount of at least 6 moles per gram atom of palladium, to form 2,7-octadien-1-ol; (ii) extracting 2,7-octadien-1-ol from at least part of the reaction mixture obtained in step (i) with a saturated aliphatic hydro-carbon, a monoolefinic hydrocarbon or an alicyclic hydrocarbon, and recycling the extraction residue to the 2,7-octadien-1-ol synthesis step (i); (iii) subjecting the extract layer containing 2,7-octadien-1-ol as obtained in step (ii) to distillation at a liquid phase temperature of not higher than about 100°C to distill off a large proportion of the extracting solvent therefrom, followed by distillation in the presence of water, whereby the extructing solvent remaining is distilled of e in the form of an azeotropic mixture with water, to obtain a distillation residue: (iv) recovering 2,7-octadien-1-ol from the distillation residue obtained in step (iii) by distillation (v) hydrogenating the 2,7-octadien-1-ol obtained in step (iv) in the presence of a hydrogenation catalyst to obtain n-octanol; and (vi) recovering n-octanol from the hydrogenation reaction mixture by distillation.
Patent CA-1171214-A (CA)
Inventor: FESTER WALTER
IPC: D01F6/18
Filed: 1982-03-19
Granted: 1984-07-24
Abstract: Abstract of the disclosure:         Filaments and fibers spun from at least 98% by weight of polyacrylonitrile and relative viscosities between 2.5 and 6.0 have tensile strengths of more than 50 cN/tex with an elongation at break of at most 15% and a shrinkage at the boil of less than 5% and they are distinguished by an increased resistance to swelling and hydrolysis.        The process for their production comprises at least 2 stretching steps with a minimum stretch ratio of 1 : 9 as well as a concluding setting stage in which the filaments are treated without shrinkage in dry heat at 170 to 280°C.
Patent CA-1202253-A (CA)
Inventor: VAN BOOM JACOBUS H
IPC: C07H19/00
Filed: 1982-05-10
Granted: 1986-03-25
Abstract: ABSTRACT OF THE DISCLOSURE            The invention relates to new phosphorylating agents, a process for producing said compounds and their use in a process for the phosphorylation of organic hydroxyl compounds to obtain intermediate products useful for the production of polynucleotides. The phosphorylation is achieved without side reactions at the purine- or pyrimidine bases.
Patent CA-1200629-A (CA)
Inventor: HERNANDEZ CHARLES
IPC: G06F3/153
Filed: 1982-05-27
Granted: 1986-02-11
Abstract: ABSTRACT OF THE DISCLOSURE     The data are received in n demodulator and then are grouped into data packets at the output of a demulti-plexer. The demultiplexer is connected to the demodulator by phasing flip flops.  Gates are provided for returning the flip flop to zero and for cutting off transmisson of the data from the demodulator to the demultiplexer during reception of the television raster frame.            Figure 2
Patent CA-1186780-A (CA)
Inventor: NAKAMURA TADAO
IPC: F02B3/06
Filed: 1982-06-25
Granted: 1985-05-07
Abstract: ABSTRACT OF THE DISCLOSURE           A preheating system for a diesel engine using an electric heater for heating suction air introduced into a combustion chamber of the diesel engine.  A normally-open first relay is disposed in a circuit connecting the heater with a battery.  A coil of the first relay is connected with an accessory terminal of an engine key switch through a pushbutton switch.          A timer and a normally-open second relay are disposed in another circuit connecting the coil of the first relay with accessory terminal of the engine key switch.  Once the pushbutton switch is pressed, the second relay is closed, connecting the coil of the first relay with the accessory terminal through the timer, thereby electrically connecting the heater with the battery.          The heater continues to be heated until the timer deenergizes the first relay.
Patent CA-1168164-A (CA)
Inventor: ERIKSEN FRIDTHJOF N
IPC: B01D/
Filed: 1982-06-25
Granted: 1984-05-29
Abstract: Method of pneumatic rinsing of filters provided with com-pressed-air supply openings, and apparatus to be used when carrying out this method.            Abstract of Disclosure A method of penumatic rinsing of filters provided with com-pressed-air supply openings, and placed between (a) the out-let of a container transporting and storing pulverized or granular materials and (b) a dispensing sluice with a rotat-able vane wheel is characterized in -that the rotation of the vane wheel is utilized for controlling a valve arrangement, connected to a compressed-air source, in such a manner that the filters are blown through in a sequence dependent on the rotational speed of the sluice. Thus, this method exclusive-ly involves a penumatic-mechanical arrangement for cleaning filters by blowing compressed air therethrough.            An apparatus to be used when carrying out the method includes a ratchet wheel arrangement consisting mainly of two ratchet wheels (7,8), which by a crank connection (9,13) and a cross-member (10) provided with ratchets (11,12) are connected to the sluice vane wheel (13). Above the ratchet wheels (7,8) screenings (14,15) are mounted to adjust the engagement be-tween the ratchets (11,12) and the respective ratchet wheels (7,8) in such a manner that the rotation of the sluice vane wheel is converted to a rest-rotation-rest-motion used for controlling the revolving of a valve plate (2) which is fitted with a borehole (3), which by turning of said valve plate (2) is brought into alignment with totally six valve openings (5) provided in a cover above said valve plate.
Patent CA-1186529-A (CA)
Inventor: GUERGUERIAN RHUAL L
IPC: F16H55/12
Filed: 1982-06-25
Granted: 1985-05-07
Abstract: COMPOSITE RING GEAR SYSTEM ABSTRACT OF THE DISCLOSURE    The composite ring gear structure, for driving heavily loaded drums in rotation about a horizontal axis thereby to tumble the material loading the drum, is formed by means of a plurality of gear support segments adapted to be connected in driving relation about the periphery of the drum and to be coupled together and extend 360° around the circumference of the drum to provide a gear support. A plurality of gear segments are mounted on the outer periphery of the gear support to form a continuous ring gear extending completely about the gear support.  The gear segments have a Brinell hardness of at least 250 and the gear support segments have a maximum Brinell hardness of 250 while always maintaining a minimum difference in Brinell hardness between the gear segments and the gear support of at least 50 Brinell hardness units so that the support segments are significantly more ductile than the gear segments thereby to dampen stress and impede transmission of stress between the drum and gear segments.
Patent CA-1188888-A (CA)
Inventor: IVERLUND BERTIL G
IPC: F26B19/00
Filed: 1982-07-07
Granted: 1985-06-18
Abstract: ABSTRACT OF THE DISCLOSURE           A method of drying wooden objects according to the invention shall be carried out in a closed treatment room with a supply of microwave effect which heats the objects stacked in a unit so that the moisture is pressed out and removed.  Each unit is positioned in a cover of a heat insulation stuff which prevents cooling of the wooden objects by the air circulation in the room.
Patent CA-1191170-A (CA)
Inventor: RENK RICHARD J
IPC: F16H57/04
Filed: 1982-07-23
Granted: 1985-07-30
Abstract: GEAR CASE     A B S T R A C T      A lubricant retaining device for use with a gear case having a pair of matable sections with a shaft receiving opening therein.  The lubricant retaining device extends inwardly to the Interior of said case to reduce lubricant flow through the shaft receiving opening.
Patent CA-1199050-A (CA)
Inventor: PIECZULEWSKI DANIEL J
IPC: B23Q1/26
Filed: 1982-09-02
Granted: 1986-01-07
Abstract: ABSTRACT OF THE DISCLOSURE Rotary tables for machine tool application are disclosed of the type using "Hirth" couplings to provide precision indexed positions and which are characterized by an hydraulically actuated piston member, one set of mating serrated teeth carried by the rotary tile and a concentric row of teeth fixed to the table base with the rotary table being supported on bearings.  In the first version, a series of ball bearings are disposed in corresponding ball grooves, with a built-in predetermined amount of clearance in the bearing to enable the coupling teeth to be seated without interference from the bearing.  Fluid pressure is adapted to be applied in the cavity to disengage the piston and to move the table top plate so as to preload the ball bearing, in order to provide a precision rotation of the rotary table for contouring applications.  The table top plate also is formed with an outboard bearing surface engaged with a surface on the base when the serrated teeth are locked for maxim support, but are lifted clear when released to reduce wear and friction during indexing rotation of the top plate.  In a second embodiment, the rotary table top assembly is mounted on bearings having a fraction characteristic decreasing with increasing pressure until an optimum preload level, and the disengaging air pressure is applied so as to increase the pressure on the bearing during indexing rota-tion of tile table in order to optimize the bearing friction characteristics during indexing as well as to disengage the Hirth coupling teeth.
Patent CA-1189464-A (CA)
Inventor: KOMATSU HIROSHI
IPC: F16D69/02
Filed: 1982-09-07
Granted: 1985-06-25
Abstract: CLUTCH DISK FOR A CLUTCH                       AND METHOD OF TREATING A FACING OF A CLUTCH                Abstract of the Disclosure A clutch disk for a clutch used in an automobile having facings on both sides thereof.  The facing is made of sintered steel with porous structure.  A rust preventives having a greater ionization tendency than iron is impregnated in the facing.  The rust preventives is selected from the group consisting of zinc phosphate and manganese phosphate.
Patent CA-1188651-A (CA)
Inventor: ZUK PAUL
IPC: H01T21/00
Filed: 1982-11-16
Granted: 1985-06-11
Abstract: ELECTRODE COATING PROCESS            Abstract Disclosed is a method of coating electrodes in spark gap devices which minimizes filament formation.  A coating such as carbon is deposited on the electrode surfaces.  A signal is then applied so that the device conducts in the arc mode for several short periods.  A small spot of the coating bonds with the negatively biased electrode during each conduction.  This operation continues at alternating polarities until essentially the entire surface area of both electrodes is bonded.
Patent CA-1179803-A (CA)
Inventor: SPRATT LORENZO
IPC: C09K3/18
Filed: 1982-11-22
Granted: 1984-12-27
Abstract: Abstract An aerosol foam composition for inhibiting the bonding of ice precipitates to a substrate comprises propylene glycol mixed with propylene glycol mono-stearate. The composition is preferably dispensed by spraying from a sealed container which is pressurized by a propellant.
Patent CA-1193240-A (CA)
Inventor: TWIGG MARTYN V
IPC: C01B3/40
Filed: 1982-12-14
Granted: 1985-09-10
Abstract: Abstract A process of reacting a hydrocarbon feedstock with steam and/or carbon dioxide is carried out over a catalyst in the form of at least one undeformable hollow unit permitting gas flow in at least two mutually transverse directions with-in its boundaries.  The catalyst typically comprises random-packed metal tubular units with apertures in their walls, such as "PALL" rings.  The process is capable of high throughputs at low pressure drop and with low concentrations of catalytically active metal per unit catalyst bed volume as compared with con-ventional ceramic ring catalyst.
Patent CA-1196684-A (CA)
Title: Cell-container and cell-lid for electric- accumulators particularly for those meant for traction
Inventor: OLIMPIO STOCCHIERO
IPC: H01M50/147
Filed: 1982-12-17
Granted: 1985-11-12
Abstract: ABSTRACT           CELL-CONTAINER AND CELL-LID FOR ELECTRIC-ACCUMULATORS PARTICULARLY FOR THOSE MEANT FOR TRACTION          The cell-container, obtained by blow-forming thus having a minor thickness, presents at the upper-rim a conformation in two steps(1) permitting the mating of the cell-lid to the cell-container remai= ning within unified overall-dimensions, as the welding-bead between the cell-lid and the cell-container forms itself on the inside in= stead of on the outside of the same. Furthermore, it becomes possi= ble to increase the welding-surface according to one's need if the cell-container is cut in correspondence with the flat-part of the step. The cell-container presents, furthermore, horizontal-recessings at various levels permitting the modular-cutting of the product ac= cording to unified measures.            The cell-lid's form is concave towards the exterior in order to fol= low the dilatations of the poles during the service-life of the bat= tery. The cell-lid is also furnished with a molded ring, which has circular profile around the electrolyte's inlet thus avoiding the application of a gasket onto the top-cover.
Patent CA-1213351-A (CA)
Inventor: DANBY HAL C
IPC: H04R25/00
Filed: 1983-01-24
Granted: 1986-10-28
Abstract: Abstract A non-invasive, external ear canal electrode useful for transmitting sound stimulus to an ear canal and for conducting electrical signals picked up from the ear canal epidermal surface comprising an electroconductive tube having a resilient annular sensor comprising a silver conductor attached to the end to be placed in the ear.
Patent CA-1212840-A (CA)
Inventor: ILER RALPH K
IPC: C01G51/10
Filed: 1983-02-25
Granted: 1986-10-21
Abstract: ABSTRACT OF THE DISCLOSURE         A method is provided for inhibiting the formation of silica scale on flash-pot surfaces during the multi-stage flashing of sulfuric acid pressure-leach slurry obtained following the continuous autoclave leaching of nickel lateritic ore at elevated temperature and pressure during which silica is dissolved, wherein the leach slurry is subjected to a high-temperature flash stage such that the slurry at the flash temperature is supersaturated in soluble silica, and wherein the slurry is thereafter subjected to at least one additional flash at an in intermediate-temperature flash stage at which silica precipitates and tends to form a scale accompanied by a decrease in said supersaturation.          The improvement resides in recycling a substantial portion of the slurry to the intermediate-temperature stage follow-ing flashing to the intermediate-temperature flash stage, the portion recycled being sufficient to effect a dilution in silica concentration of the slurry being flashed into the intermediate-temperature flash stage from the high-temperature stage, and continuing the recycling of flashed slurry to the intermediate-temperature flash stage, whereby silica scale formation at the intermediate-temperature flash stage is greatly inhibited.  The pH of the recycling stream may be adjusted to further minimize silica deposition.
Patent CA-1211084-A (CA)
Inventor: MERCIL LEROY J
IPC: B05B3/18
Filed: 1983-05-03
Granted: 1986-09-09
Abstract: BOOM SUSPENSION AND LIFT ASSEMBLY     ABSTRACT OF THE DISCLOSURE         The present invention relates to a boom suspension and lift assembly which is mounted to extend laterally from a vehicle for agricultural spraying purposes.  The boom assembly comprises a main frame mounted on the vehicle and at least one boom pivotally mounted on the main frame.  A suspension system between each boom and the main frame independently absorbs boom motion resulting from vehicle travel over uneven terrain.  A boom lifting system is provided to selectively lift each boom relative to the main frame by pivoting the boom about a longitudinal axis adjacent the main frame.  For transport or storage, each boom is foldable against a side of the vehicle.
Patent CA-1203794-A (CA)
Inventor: KLAREN DICK G
IPC: F28D13/00
Filed: 1983-05-18
Granted: 1986-04-29
Abstract: "Method of operating a liquid-liquid heat exchanger"     ABSTRACT OF THE DISCLOSURE     In a method of operating a liquid-liquid heat exchanger the first heat exchanging medium is passed upwardly through a plurality of tubes in which a granular mass is kept fluidized by the flow of the first medium and the second heat exchanging medium is passed downwardly through which said tubes extend spaced apart and whereby heat exchange takes place through the tube walls.  To improve heat transfer between the tubes and the second medium, especially at low flow rates of the latter, said chamber contains, around and between the tubes, a loosely packed solid particulate filling material through which the second medium flows, and the longitudinal superficial velocity of the second medium between the tubes (U1,s) satisfies the relation 0.05 < U1,s < 0.25 m/sec.