baber/WOPTO huggingface dataset:
Patent CA-1175141-A (CA)
Inventor: LEMOINE MAURICE G
IPC: H04N9/808
Filed: 1981-01-30
Granted: 1984-09-25
Abstract: ABSTRACT OF THE DISCLOSURE A method and apparatus for detecting errors in the accuracy of multi-bit data words, i.e., a parity method and apparatus, is disclosed.  The invention is intended for use in determining the accuracy of multi-bit data words that are being transmitted through a communication channel or are being recorded and reproduced using magnetic recording or other technique.  One embodiment of the invention involves examining at least three significant bits in at least three successive words and generating parity bits with predetermined logical states determined by the content of the examined significant bits and combining one of the parity bits with each of the data words for transmission or recording and subsequently examining the data words and parity bits upon receipt and generating an error signal for the data words when one of the parity bits combined with the examined data words has a logical state other than that that would have been transmitted or recorded if determined by the original content of the received data words.
Patent CA-1154095-A (CA)
Title: Radio telephone system and method for use in vehicles
Inventor: TAKAYAMA YOSHIKAZU
IPC: H04W36/08
Filed: 1981-02-18
Granted: 1983-09-20
Abstract: Abstract of the Disclosure A vehicle radio telephone system is constructed to talk between a vehicle and a fixed station through any one of a plurality of radio channels.  Upon degradation of a talking condition during talking, the radio channel is switched and a tone is sent to talkers to inform them that the radio channel is now being changed.  According to this system the talkers are informed of the fact that the radio channel is now being switched by the tone so that they can know whether a toneless state is caused by the channel switching or termination of the talking.
Patent CA-1173940-A (CA)
Inventor: BERGVALL BENGT A
IPC: D05B69/00
Filed: 1981-03-02
Granted: 1984-09-04
Abstract: A B S T R A C T         A sewing machine has a pattern selection device and a seam memory for supplying stitch data for a needle positioning mechanism and a feeder mechanism. The pattern selection means includes a control switch adapted to be set in accordance with the type of cloth to be sewn. On basis of information input via the control switch and pre-programming of the memory, that seam data is chosen which is most suitable to the selected type of cloth and a selected sewing operation.
Patent CA-1180873-A (CA)
Inventor: MARINGER ROBERT E
IPC: B22D11/06
Filed: 1981-05-08
Granted: 1985-01-15
Abstract: STRIP CASTING APPARATUS                Abstract of the Disclosure An apparatus for continuously casting metallic strip material is disclosed, comprising a tundish, and a nozzle comprising a curvilinear element, with an orifice passage in the element having substantially uniform cross-sectional dimensions throughout the longitudinal extent thereof.  Disposed outside the nozzle is a cooled casting surface movable past the   nozzle in a direction substantially perpendicular to the longitudinal axis of the orifice passage.  First and second inside surfaces of the element define the orifice passage through which molten metal is fed to the casting surface.
Patent CA-1146161-A (CA)
Inventor: KUCHERER HARVEY D
IPC: F28F11/02
Filed: 1981-07-09
Granted: 1983-05-10
Abstract: 49,176 ABSTRACT OF THE DISCLOSURE The tube plug comprises a shell having a tapered inner surface against which an externally tapered expander member moves by  application  of  a  pulling  force.   The motion of the expander member relative to the shell causes the shell to expand into contact with a heat exchange tube thereby plugging the tube.  The expander member is formed from a hardened metal with tangentially blended leading radius and a self-locking trailing edge which provides for ease in expanding the shell while preventing inadvertent unlocking of the plug.  The  shell has  a  substantially uniform wall thickness throughout the portion of the shell which experiences expansion so that the force necessary to perform the expanding process does not increase beyond the strength limitations of the installation equipment as the expander member is moved through the shell.  The  shell also has  a plurality of  lands  on the  outside  surface thereof whose depth increases from closed end to open end of  the  shell  so that  a uniform wall thickness can be maintained in that  region while  allowing  the  lands  to contact the inner surface of the heat exchange tube.
Patent CA-1172726-A (CA)
Inventor: WOELFEL ROBERT T
IPC: B41J5/08
Filed: 1981-07-15
Granted: 1984-08-14
Abstract: Abstract of the Disclosure An improved membrane keyboard is provided wherein the keys are spatially separated and formed from resilient foam.  Specifically, this membrane key-board provides the user with a sensation of movement to indicate key activation.
Patent CA-1177249-A (CA)
Inventor: KUNII DAIZO
IPC: C10J3/56
Filed: 1981-08-06
Granted: 1984-11-06
Abstract: Abstract of the Disclosure A fluidized bed apparatus and a process for the gasification of combustible materials such as biomass heavy hydrocarbon oils and coal.  Two or more separate reaction zones connected in series as a closed loop are formed within a tubular housing, through which a bed of particulate heat transfer medium such as sand continuously and successively recirculates while being maintained in the fluidized state.  One of the reaction zones serves as a cracking zone for the combustible material and another one of the reaction zones serves as a heat-up zone for thermally regenerating the heat transfer medium by partial or complete combustion of char produced in the cracking zone.
Patent CA-1162941-A (CA)
Inventor: FELIX RAYMOND A
IPC: C07C253/30
Filed: 1981-08-12
Granted: 1984-02-28
Abstract: PROCESS FOR PREPARING 3-ALKYL-2-p-CHLOROPHENYL BUTYRYLNITRILE                 Abstract of the Disclosure 3-Methyl-2-p-chlorophenyl butyrylnitrile is useful as an intermediate for preparing the (?)-cyano(3-phenoxyphenyl)methyl ester of (?)-3-methyl-2-(4-chlorophenyl) butanoic acid which is useful as an insecticide and acaricide.
Patent CA-1192541-A (CA)
Inventor: BARKER SIDNEY A
IPC: C13K1/02
Filed: 1981-08-13
Granted: 1985-08-27
Abstract: Abstract A process for the modification, solubilisation and/or hydrolysis of a glycosidically linked carbohydrate having reduc-ing groups using a mixture comprising water, an inorganic acid and a halide of lithium, magnesium or calcium.  The process is particularly useful for converting cellulose (derived for example from waste-paper, wood or sawdust) or starch to glucose. When cellulose is the starting material the preferred halide is a lithium halide.  When starch is the starting material a mag-nesium halide is preferred.
Patent CA-1153356-A (CA)
Inventor: CUSCURIDA MICHAEL
IPC: C08L63/00
Filed: 1981-08-14
Granted: 1983-09-06
Abstract: HIGH VISCOSITY FLUIDS      (D#75,830-F) ABSTRACT OF THE DISCLOSURE         High viscosity fluids and their method of manu-facture by reacting epoxy resin with ethylene oxide/propylene oxide adducts of alcohols, glycols and other polyhydric initiators are described.  Fluids made by the method of this invention have viscosities on the order of 300,000 to 400,000 SUS at 100°F as compared with prior art synthetic fluids which have viscosities around 200,000 SUS at 100°F.  The fluids described have good water  solubility and thickening properties and may be used as functional fluids.  The fluids of this invention may be made by a more economical method than those of the prior art.                             -I-
Patent CA-1173596-A (CA)
Inventor: WHITE DWAIN M
IPC: C08G73/10
Filed: 1981-09-03
Granted: 1984-08-28
Abstract: Abstract of the Disclosure A method is provided for making polyetherimides, based on the use of certain organic diamine catalysts, for example, 4-dimethylaminopyride and secondary or tertiary aliphatic diamines, to accelerate the intercondensation of aromatic bis(ether anhydride) and organic diamine under solu-tion or melt polymerization conditions.  The resulting poly-etherimides are high performance injection moldable thermo-plastics.
Patent CA-1179565-A (CA)
Title: Solar air collector
Inventor: MISRAHI EDDY
IPC: F24J2/04
Filed: 1981-09-11
Granted: 1984-12-18
Abstract: ABSTRACT OF THE DISCLOSURE     A solar heating system including a radiant heat collector apparatus made up of an enclosure having glazed panels.  The collector provided within the enclosure is upstanding with the enclosure and the collector has heat absorbent flat walls spaced inwardly from the glazed panels.          A heat storage core is provided centrally within the collector and spaced from the walls of the collector.  The heat storage core includes an insulated housing and a heat retaining member within the insulated housing.  Air passageways are formed between the collector walls and the insulated housing for passing input air, and duct members are provided for communicating with a household.
Patent CA-1177639-A (CA)
Title: Air distributor
Inventor: WESTELAKEN CHRISTIANUS M T
IPC: F26B17/12
Filed: 1981-09-21
Granted: 1984-11-13
Abstract: Abstract:    An air distributor is described for distributing air uniformly along a longitudinal plenum, particularly in a grain dryer.  The air distributor comprises a pair of spaced side wall panels, each panel tapering from a large end to a small end and a plurality of air deflector vanes mounted across between the side walls adjacent the tapered edges.  The vanes are arranged along the tapered edges in opposed pairs of decreasing spacing therebetween and are contoured to deflect in an outward direction air travelling longitudinally between the side walls.
Patent CA-1161726-A (CA)
Inventor: SAARISALO RISTO A
IPC: F16K11/078
Filed: 1981-10-29
Granted: 1984-02-07
Abstract: ABSTRACT OF THE DISCLOSURE            The invention relates to a single-grip valve having a valve body with water inlets and a water discharge outlet and ceramic discs fitted in the body, the mutual position of the discs determining the mixing ratio of cold and hot water.  One ceramic disc is moved by a lever which is attached with bearings to a turning piece fitted to turn inside the body.  In order to limit the turning movement of this turning piece and, together with it, that of the lever, one of the members, the turning part and the body part surrounding it, is equipped with axial protrusions spaced around it and the other has respectively at least one axial protrusion.  However, the protrusions of the different members do not overlap each other in the radial direction, but between the said members there is fitted at least one detachable limiting piece which can engage between the protrusions of one member and radially overlaps the protrusions of the other member.
Patent CA-1176294-A (CA)
Inventor: CHANG YIH-YI
IPC: H05B3/04
Filed: 1981-11-12
Granted: 1984-10-16
Abstract: ENGINE BLOCK HEATER               ABSTRACT OF THE DISCLOSURE       An engine block heater adapted for insertion through an opening in the block wall of an internal combustion engine has a novel arrangement for securing the heater within the opening of the block wall.  The heater includes a plug member having a heating element and an adjustable fastening assembly extending from one side of the heater into the interior of the engine block.  The fastening assembly passes through the plug member for adjustment from outside the block.  A spiral spring is further included having its  center positioned in fixed relation with the fastening assembly.  The spring spirals toward the one side of the plug member.  Additionally, two wing members are mounted in pivotal relation with the fastening assembly through an intermediate support member threadably mounted on the fastening assembly.  The wing members have an inverted V shape with respect to the one side of the plug member when positioned within the spiral so as to facilitate insertion of the plug member into the aperture.  The wing members may also extend substantially along a longitudinal path so as to have a diameter larger than that of the aperture when the wing members are drawn against the one side of the plug member by adjustment of the fastening assembly.  In this latter position the wing members secure the plug member in the aperture.  The advantage found in this novel arrangement is that it is possible to repeatedly insert and remove the heater from the engine block.
Patent CA-1160032-A (CA)
Inventor: FINLAYSON CLAUDE M
IPC: C09K8/502
Filed: 1981-11-16
Granted: 1984-01-10
Abstract: ABSTRACT           An oil base fluid containing an organophilic clay gellant is disclosed.  The gellant is the reaction product of an organic cationic compound and a smectite-type clay.
Patent CA-1185777-A (CA)
Inventor: BANNISTER CHARLES E
IPC: E21B43/22
Filed: 1981-11-24
Granted: 1985-04-23
Abstract: ABSTRACT OF THE DISCLOSURE          A composition designed for dissolution or dispersion in water to give an aqueous treatment fluid which is compatible with cement slurries and with drilling muds and a method of using same to displace a drilling mud from a borehole which penetrates a subterranean formation. The compositon comprises a water soluble viscosifier which increases the viscosity of water under mixing and handling conditions but which becomes substantially insoluble in water when exposed to temperatures encountered downhole in a wellbore; a thickener, which is soluble or dispersible in and which increases the viscosity of water at temperatures experienced under downhole conditions; and a third component, a dispersant, which enhances the dispersibility of the viscosifier in water and thereby permits it to go smoothly into solution, and water.  The resultant aqueous treatment fluid, at a viscosity of greater than 0.1 and less than 7.5  .
Patent CA-1181270-A (CA)
Inventor: VAN BAAL PETRUS H
IPC: B21K21/14
Filed: 1981-12-15
Granted: 1985-01-22
Abstract: ABSTRACT OF THE DISCLOSURE A process and an apparatus for manufacturing tubular cart-ridges having one end at least substantially closed, by means of cold-working of tubular blanks, wherein a tubular blank is fed into a die snugly, enclosing said blank, the tube end to be closed resting on a retractable bottom forming tool.  With the tube so positioned, a punch having an outer diameter larger than the inner diameter of the tube is lowered into the tube, which punch when moving through the tube displaces material from the entire length of the inner wall of the tube to the lower end of the tube so as to at least partially close this end of the tube.
Patent CA-1157433-A (CA)
Inventor: KNIGHT KENNETH G
IPC: A01D87/12
Filed: 1981-12-18
Granted: 1983-11-22
Abstract: "BALE UNROLLER" ABSTRACT OF THE DISCLOSURE          Round hay bales usually weigh up to 2,000 lbs. and are difficult to unroll so that cattle can obtain ac-cess to them for feed.  The present invention comprises a frame attachable to a three-point hitch of a tractor.  One fixed arm extends perpendicularly from one side of the frame and a hinged arm extends from the other side and is movable in a vertical plane by means of a hydraulic piston and cylinder assembly.  Each arm is provided with a bale engaging spike or prong and when it is desired to unroll a bale, the hinged arm is opened and the two prongs are engag-ed axially of the bale whereupon the hinged arm is closed. The three-point hitch mechanism allows the bale to be ele-vated clear of the ground so that it may be transported by the tractor to the desired location.  The three-point hitch assembly is then placed in the float position with the peri-meter of the bale engaging the ground.  As the tractor moves forwardly, the bale rotates on the prongs and unrolls.  As the three-point hitch is in the float position, the unroller gradually tips rearwardly due to the weight of the bale, thus keeping the periphery of the bale, which is decreas-ing in diameter, always in contact with the ground.
Patent CA-1195209-A (CA)
Inventor: MOCHIDA HARUO
IPC: B60W10/10
Filed: 1982-03-09
Granted: 1985-10-15
Abstract: ABSTRACT OF THE DISCLOSURE:           A shift lever control device for an automotive transmission by which a shift lever can be shifted from Park position to Reverse position or vice versa only when the park brake is in operation and the engine has been started.  The control device simply comprises a shift lever control means having a plunger and an electromagnetic actuation mechanism, an ignition key switch and a park brake switch, in addition to a conventional shift lever device having a shift lever, a position plate, a pin, etc. The ignition key switch, the park brake switch, and the electromagnetic mechanism are connected in series between a power supply and ground, so that if the park brake is released or the engine turned off, the electromagnetic mechanism is operated to actuate the plunger to drive the pin of the gear shift level into engagement with a Park position slot.  The control device is also intended to prevent the dangerous situation when the shift lever is accidentally set to the park position while the engine is running.
Patent CA-1163983-A (CA)
Inventor: LESTER GEORGE R
IPC: B01J37/08
Filed: 1982-03-18
Granted: 1984-03-20
Abstract: "INTEGRAL SHAPED REPLICATION SUPPORTS"         ABSTRACT           Integral shaped replication composites which may be useful for supports for catalysts or as adsorbents comprise a carbonaceous pyropolymeric structure which has been prepared by treating an inorganic support with an organic pyropolymer precursor and pyrolyzing the precursor to form a car-bonaceous pyropolymer possessing recurring units containing at least carbon and hydrogen atoms on the surface of the support.  This carbonaceous pyro-polymer will duplicate the physical shape and dimensions of the inorganic support as well as a substantial portion of the pore structure thereof.  The integral shaped replication will possess an ABD which is about 25% to 100% of the ABD of the inorganic support, and have a crush strength of from about 0.5 to about 14 kilograms.  The composite comprising the carbonaceous pyro-polymer on the surface of the support may then be leached with an acid or base to remove the inorganic support, thus leaving a shaped replication of particle aggregates.  If so desired, the shaped replication may be further treated by depositing at least one inorganic oxide on each surface of the replication.
Patent CA-1176386-A (CA)
Inventor: DIXON DAVID R
IPC: B01D21/01
Filed: 1982-04-05
Granted: 1984-10-16
Abstract: A B S T R A C T                "WATER CLARIFICATION"           A method for removing suspended impurities and coloured substances from water which is hard and/or has a pH in excess of 5 which comprises contacting the water at its natural pH with a coagulant/adsorbent which comprises a finely divided particulate mineral material, the individual particles of which have a thin hydroxylat-ed surface layer having a positive zeta potential at the adsorption pH, and separating the thus treated water from the coagulant/adsorbent.
Patent CA-1175482-A (CA)
Inventor: BROWN ROBERT J S
IPC: G01V3/32
Filed: 1982-04-14
Granted: 1984-10-02
Abstract: ABSTRACT OF THE DISCLOSURE               "COMPUTER-CONTROLLED, PORTABLE PULSED   NMR INSTRUMENT AND METHOD OF USE"           In accordance with the prevent invention, fluid-flow properties of a rock sample based on NMR response of the hydrogen nuclei of interstitial fluids within the pore space of such sample, can be swiftly and accurately achieved using a computer-controlled, portable NMR instrument.  Inherent instrument inadequacies (DC field inhomogeneity and large phase background jitter) are themselves relied upon to increase the data-throughput efficiency, i.e., the number of NMR responses performed per unit time.  Result:  Even though the instrument is placed at field sites away from the usual processing center, quick analysis of rock samples as during the drilling of a well, still results.
Patent CA-1234027-A (CA)
Inventor: TAKEUCHI HIROSATO
IPC: F24S10/40
Filed: 1982-05-18
Granted: 1988-03-15
Abstract: ABSTRACT OF THE DISCLOSURE           An outer glass pipe for a solar heat collector pipe includes an outer glass pipe body formed by a straight glass pipe open at both ends and a lid member having a small diameter opening therein.  An exhaust pipe of a smaller diameter is attached to the lid member at the opening to form a bottom member.  The bottom member is air-tightly fixed to one open end of the outer glass pipe body on its peripheral edge, thereby closing the one open end.  An annular rib extends around the exhaust opening on the lid.  The lid member is preferably formed of glass.
Patent CA-1205999-A (CA)
Inventor: VICINO ROBERT K
IPC: G09F19/00
Filed: 1982-05-19
Granted: 1986-06-17
Abstract: Inflatable Display Structure Abstract An inflatable billboard or other display structure utilizing an elongated inflated bag for its principal structural support, bag defining one or more surfaces to which billboard-sized display facings are releasably mounted with snaps or the equivalent, the entire structure being anchored by water-filled bags in one embodiment so that the entire structure is easily drained, deflated, and transported to another site.  An optional, continuously operable blower motor is provided in one embodiment to insure the continuous inflated state of the billboard despite the presence of leaks along the seams and the like.
Patent CA-1183357-A (CA)
Inventor: ROPER LINWOOD W JR
IPC: E02D5/60
Filed: 1982-06-14
Granted: 1985-03-05
Abstract: ABSTRACT OF THE DISCLOSURE         A system of forming an in situ sleeve of concrete about a pile to provide protective reinforcement for the pile.  The system utilizes spirally wound paper molding tubes to define the structural components of the concrete receiving casing or mold, with the mold consisting of a pair of cooperating arcuate tube sections formed from the molding tubes through removal of predetermined width full length portions thereof.  The portion removed from the first tube is of a width less than one half of the circumference of the tube and forms a section with an opening of a width normally only sufficient to receive the pile therethrough.  The removed portion of the second tube is substantially greater and provides a retained section greater than the defined opening in the first formed section to lie thereover.
Patent CA-1192671-A (CA)
Inventor: WILDEBOER NICOLAAS
IPC: H01L23/02
Filed: 1982-09-15
Granted: 1985-08-27
Abstract: ABSTRACT     A microcircuit flat package which remains hermetically sealed even under conditions of high stress. The package comprises an integral rectangular metal tubular shell having an opening in one of the broad walls, and elongated integral insulators sealed in the open ends of the tube, each insulator having an array of leads extending in sealed manner therethrough. A microcircuit is installed within the package and connected via wire bonds to the inner ends of the leads and after which a cover can be bonded onto the flat coplanar surfaces of the tubular shell surrounding the package opening to hermetically enclose the microcircuit.
Patent CA-1169365-A (CA)
Inventor: WESTERLUND TAGE
IPC: B66B11/08
Filed: 1982-09-24
Granted: 1984-06-19
Abstract: ABSTRACT A traction drive system for wire lope hoists has a hoist cage, carried by a single loop of ropes that passes through a traction sheave and the ends of which are each connected to a drum.  The drums are mounted on top of the hoist cage and mutually coupled for rotation with different peripheral speeds under the action of the driven movement of the loop, the end portions of the loop extending in opposite directions over the respective drums.  The drums may be coaxially arranged on the same axis of rotation and have different diameters and be rigidly interconnected.  The arrangement eliminates the need for a counterweight and of compensation for rope unbalance.