baber/WOPTO huggingface dataset:
Patent CA-1182760-A (CA)
Inventor: MCNICHOLAS JAMES J
IPC: B01D50/00
Filed: 1981-06-03
Granted: 1985-02-19
Abstract: ABSTRACT OF THE DISCLOSURE           A centriugal separator cleans a stream of fluid by passing the same through a rapidly rotating tapered duct.          Rotation of the duct creates centrifugal force which causes pollutants carried by the stream to collect on a duct wall and to flow along the wall in a direction opposite to the direc-tion of flow of the fluid through the duct.
Patent CA-1154316-A (CA)
Inventor: SHERWOOD EDWARD F
IPC: E06B3/46
Filed: 1981-07-09
Granted: 1983-09-27
Abstract: 13                48,819 ABSTRACT OF THE DISCLOSURE A slidable door assembly for opening and closing an opening or entranceway including a hanger plate having hanger and up-thrust rollers thereon, a door panel fixed to  the hanger plate,  and a  support structure disposed above the door opening.  The support structure includes a hanger track upon which the hanger rollers travel, and a horizontally  oriented  guide  or  bearing  surface  which co-acts with the up-thrust rollers.  A door stabilizer is fixed to the door panel, adjacent to its trailing edge, with reference to its closing movement, which includes a roller  whose  rotational  axis  is  disposed  outside  the vertical projection of the door panel.  The roller of the door stabilizer co-acts with a guide surface, which may be the same guide surface used by the up-thrust rollers, to protect the up-thrust rollers  from excessive force, and prevent untracking of the hanger rollers, when a force is applied to the leading edge of the door panel.
Patent CA-1154466-A (CA)
Inventor: VARTANOV STEPAN K
IPC: E02F5/06
Filed: 1981-09-01
Granted: 1983-09-27
Abstract: TRENCHING MACHINE FOR CUTTING PREFERABLY FROZEN GROUND             Abstract of the Disclosure Disclosed is a trenching machine comprising a vehicle of a tractor type, a drive mechanism, a spoil discharge conveyor assembly, and a digging apparatus including a boom connected with its one end to the vehicle, a power means for raising and lowering the boom, a guide means mounted on the boom, a carrying means moving along  the guide means, teeth mounted on the carrying means along alternate  first cutting lines and second cutting lines in the direction of movement of the carrying means, the number of the teeth minuted along the first  cutting lines being greater than that of the teeth mounted along  the first cutting lines across the width of the carrying  means being greater than the width of the teeth mounted along the second cutting lines.
Patent CA-1170116-A (CA)
Inventor: WOODS THOMAS W
IPC: B21J9/18
Filed: 1981-10-16
Granted: 1984-07-03
Abstract: A B S T R A C T     A vertical press having a main frame of generally C-shaped configuration with a vertical main part and two vertical spaced horizontal arms, a mandrel extending between the two arms so as to be supported thereby, a movable member located between the main part and the mandrel, and a wedge arrangement to move the movable member toward the mandrel in a pressing action.
Patent CA-1217456-A (CA)
Inventor: KATAOKA JOJI
IPC: A47J31/10
Filed: 1981-12-24
Granted: 1987-02-03
Abstract: Abstract of the Disclosure A coffee package has a filter assembly double folded and enveloped air-tight in a wrapper in a vacuous or inert gas atmosphere.  The filter assembly includes a generally rectangular support plate made up of an intermediate portion with an opening for pouring hot water therethrough and a pair of support legs connected with opposite sides of the intermediate portion.  The support legs are formed with coactive nipping members adjacent to their edges such that, when the support legs are folded upright relative to the intermediate portion, the nipping members are firmly engagable with the upper edge of a receptacle to support the whole assembly in the raised position for use.  A sack of filter paper open at one end is filled with a weighed volume of coffee powder and adhered to the back of the support plate to cover the opening in the support plate.  The opening in the support plate may be formed in the production stages of the coffee package or defined by a lid which is removable from the support plate when coffee is to be served.
Patent CA-1185996-A (CA)
Inventor: SILVERBERG MORTON
IPC: B65H3/48
Filed: 1982-01-04
Granted: 1985-04-23
Abstract: ABSTRACT In a system of plurally recirculating a set of document sheets for precollated copying wherein the document sheets are repeatedly individ-ually fed seriatim from the bottom of an overlying stack thereof for copying with registration and returned to the top of the stack for restacking, the improvement comprising individually acquiring, and individually urging laterally into contact with an elongated lateral registration edge, with a movable vacuum member each document sheet when it is the bottom sheet of the stack of document sheets, releasing the bottom sheet, and feeding the bottom sheet out from said stack transverse said lateral registration edge by separate sheet feeding means only after it has been so laterally registered and released. Preferably this individual lateral registration of the bottom sheet in the stack is assisted by simultaneously blowing air at said stack from one edge thereof to aid the movement between the bottom sheet and the overlying    sheets in said stack.
Patent CA-1192197-A (CA)
Inventor: NISATO DINO
IPC: C07D405/12
Filed: 1982-03-11
Granted: 1985-08-20
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to thioalkylamide of nicotinic acid l-oxide with H2 receptor blocking activity, of formula:                        and to its pharmaceutically acceptable salts, to a process for preparing same by reaction of 2-(-5-di-methylaminomethylfuran-2-ylmethylthio)ethylamine with a functional derivative of nicotinic acid l-oxide and possible salification, and to pharmaceutical compositions containing same.
Patent CA-1179924-A (CA)
Inventor: MEITZLER ALLEN H
IPC: H01L29/872
Filed: 1982-03-23
Granted: 1984-12-27
Abstract: ABSTRACT       This specification discloses a method of fabricating a titanium rectifier circuit element.  A titanium dioxide main body is formed with a pair of spaced faces each of which having thereon a platinum electrode.  A dc voltage is applied across this structure, heating the structure to a temperature of about 750° - 850°C.  In this temperature range, the titanium dioxide body is subjected to a cyclic sequence of exposures to oxidizing and reducing atmospheres. The final step includes cooling down the titanium dioxide body in the presence of a reducing atmosphere with an applied dc electric field.
Patent CA-1169378-A (CA)
Inventor: BABCOCK DAVID H
IPC: G11B15/30
Filed: 1982-03-23
Granted: 1984-06-19
Abstract: RIBBON DRIVE ARRANGEMENT FOR A PRINTER       Abstract of the Disclosure Apparatus for advancing equal increments of tape to a takeup reel utilizes a drive blade having an edge that tends to slip in one longitudinal direction and grip in the other.  Reciprocation of the drive blade at the circumference of the accumulated tape results in incremental tape movements in the direction corresponding to gripping of the drive edge.  For a preferred implementation, the drive edge has the contour of an involute.  By so contouring the drive blade, the engagement at the tape circumference is essentially tangential for a broad range of diameters of the accumulated tape.
Patent CA-1144503-A (CA)
Inventor: RYAN DOUGLAS G
IPC: C10G73/22
Filed: 1982-03-23
Granted: 1983-04-12
Abstract: ABSTRACT OF THE DISCLOSURE     A continuous combination non-autorefrigerant/autorefriger-ant solvent dewaxing process for dewaxing waxy hydrocarbon oils which comprises the steps of:      (a)  passing the waxy oil into a first chilling zone wherein a portion of the wax is precipitated from the oil by cooling same in the presence of a non-autorefrigerant dewaxing solvent to form a slurry comprising an oil solvent mixture and solid particles of wax; (b)  passing said slurry from said first chilling zone to a second chilling zone which comprises a vertical, multi-staged tower operating at a constant pressure wherein each stage con-tains a liquid space and a vapor space above the liquid space, each of said vapor spaces also containing means for removal of autorefrigerant vapor therefrom;      (c)  cooling said slurry produced in said first chilling zone down to wax filtration temperature and precipitating addi-tional wax therefrom in said second chilling zone by contacting same in said second zone with a liquid autorefrigerant which is introduced under flow rate control conditions into a plurality of the stages in said second zone and allowed to evaporate there-in so as to achieve an average cooling rate of the slurry in said zone ranging from between about 0.1° to 20°F. per minute with an average temperature drop across each stage into which said liquid autorefrigerant is introduced and evaporated ranging from between about 2°  to 20°F. and wherein the evaporated auto-refrigerant is removed from each of said stages into which said liquid autorefrigerant was injected in a manner such that the autorefrigerant vapor formed in any given stage does not pass through all of the stages in the tower above said stage; and (d)  separating the wax from the slurry to obtain wax and a dewaxed oil solution.
Patent CA-1172654-A (CA)
Inventor: RIZKALLA NABIL
IPC: C07C69/24
Filed: 1982-04-28
Granted: 1984-08-14
Abstract: ABSTRACT OF THE DISCLOSURE         A carboxylic acid ester, such as methyl propionate, is pre-pared by carbonylation of an olefin, such as ethylene in the presence of an alcohol by the use of a molybdenum-nickel or tungsten-nickel co-catalyst in the presence of a promoter com-prising an organo-phosphorus compound or an organo-nitrogen com-pound wherein the phosphorus and nitrogen are trivalent and in the presence of a halide.
Patent CA-1167920-A (CA)
Inventor: GYUGYI LASZLO
IPC: H02J3/18
Filed: 1982-05-11
Granted: 1984-05-22
Abstract: 48,928 ABSTRACT OF THE DISCLOSURE This invention discloses a novel means of in-serting capacitance into an AC network for power factor correction or voltage regulation that minimizes and trans-ient  disturbances  to  the  system.   Current  surges  and voltage  transients  that  are  normally  associated with connection of capacitors into an AC network is minimized by predetermining an amount of inductance that must be inserted to suppress these transients and simultaneously inserting the inductance into the network with the capaci-tance.
Patent CA-1191145-A (CA)
Inventor: MOTTUS EDWARD H
IPC: A61K31/785
Filed: 1982-06-16
Granted: 1985-07-30
Abstract: POLYMERIC ANTITUMOR AGENT Abstract of the Disclosure The disclosure relates to pharmaceutically acceptable amide and imide derivatives of low molecular weight co- and ter-polymers of lower alkyl-and chloroalkyl- substituted vinyl ethers, maleic anhydride and maleimide having antitumor activity.
Patent CA-1194575-A (CA)
Inventor: GIRARD DONALD J
IPC: G06F13/00
Filed: 1982-08-24
Granted: 1985-10-01
Abstract: DATA INDICATION SYSTEM            Abstract of the Disclosure A system for controlling the flow of data over a common bus between a plurality of processing units is disclosed which preferably includes a MOS/LSI circuit controller chip associated with each processing unit for awarding priority of access to the common bus when two or more processing units attempt to simultaneously gain access to the common bus.  A contention circuit located in each controller chip is responsive to the sensing of each bit in the address of its associated processing unit, and generates a plurality of transitions on the common bus during the time a binary one bit is sensed in the address and listens for the presence of any trans-ition on the common bus during the time a binary zero is sensed in the address.  Access to the common bus is lost when transitions are detected on the bus during the time a binary zero bit is sensed and acquired when no trans-itions have been detected at the completion of the sensing of the address of the requesting processing unit.
Patent CA-1181269-A (CA)
Inventor: JOSEPH A DAVID
IPC: F16B5/02
Filed: 1982-08-25
Granted: 1985-01-22
Abstract: Abstract of the Disclosure A mounting arrangement for clamping plastic work-pieces such as replacement engine and transmission covers in the automotive aftermarket.  The mounting arrangement includes a metal eyelet crimped over an annular bead on the workpiece and having a flat central portion with a mounting opening,  An annular metal spacer is captured on and carried by the eyelet surrounding the mounting opening to position the head of a mounting bolt above the plane of the workpiece for access by a socket wrench or the like.
Patent CA-1202105-A (CA)
Inventor: SILLARD GILLES
IPC: H01Q15/00
Filed: 1982-08-27
Granted: 1986-03-18
Abstract: ABSTRACT OF THE DISCLOSURE      A passive duplexer for electromagnetic waves comprises a semiconductor and operated within the millimetric wave range.  The duplexer comprises a first horn associated with a radar transmitter and having a propagation axis (.DELTA.1), a plane circular grid inclined at 45° with respect to (.DELTA.1), and a second horn associated with the radar receiver and having an axis (.DELTA.2) at right angles to (.DELTA.1).  The grid is formed by a network of resonant slots equipped with at least one diode.
Patent CA-1181838-A (CA)
Inventor: KNOP HANS-GEORG
IPC: H04N1/409
Filed: 1982-10-13
Granted: 1985-01-29
Abstract: ABSTRACT OF THE DISCLOSURE     This invention relates to a method for improving contrast accentuation in the case of the re-recording of originals in the sphere of electronic image process-ing by means of graving devices and scanners.  An image signal is obtained by scanning an original opto-electronically dot-by-dot and line-by-line, and at least one surround signal is obtained by evaluating the surrounding area of the image dots.  A correction signal which is superimposed on the image signal for the purpose of contrast accentuation is derived from the surround signal and the image signal.  The original is thereupon re-recorded on a recording medium to an optional reproduction scale.  The magnitude of contrast accentuation on the recording medium is adjusted by varying the width of overlap of the image signal and correction signal irrespective of the actual reproduction scale.  In the case of enlargements in particular, troublesome border patterns on outlines are averted or at least reduced in such degree that they are no longer noticeable to the beholder.
Patent CA-1192735-A (CA)
Inventor: MCGOWAN EARSEL JR
IPC: H01B1/16
Filed: 1982-11-10
Granted: 1985-09-03
Abstract: Silver Containing Conductive Coatings Abstract of the Disclosure Conductive coating compositions comprising particulate silver metal, a glass frit system, a selenium component, a vehicle for said composition and various optional ingredients, said conductive com-positions being applicable for use as heating elements, printed circuits, and the like.
Patent CA-1187841-A (CA)
Inventor: BULLOCK JOSEPH J III
IPC: B65D43/02
Filed: 1982-11-12
Granted: 1985-05-28
Abstract: ABSTRACT OF THE DISCLOSURE     A cap for a wide-mouth container has a short inner skirt and a longer outer skirt.  The outer skirt has upper and lower internal locking beads which are preferably interrupted with gaps between bead sections.  Above the lower locking bead is a circumferential score line.  A portion of the outer skirt below the score line is cut away to form a pull tab extending parallel to the score line.          The cap has a peripheral flange the undersigned of which slants downward-inward.  The container neck is thin walled, having an internal top flange terminating in a first sealing surface which bears against the top of the inner skirt, a groove below the last-mentioned surface and a second sealing surface below the groove which also bears against the inner skirt.  The neck also has upper and lower external beads each having shoulders on their lower edges under which the upper and lower internal locking beads of the cap seat.  The neck curves outward in a lower shoulder immediately below the bottom edge of the skirt.  The cap cannot be pried off with the fingers until the user grips the tab and tears off the portion of the outer skirt below the score line.
Patent CA-1200696-A (CA)
Inventor: NAKAOJI KAZUHIKO
IPC: C10L1/32
Filed: 1982-12-02
Granted: 1986-02-18
Abstract: ABSTRACT OF THE DISCLOSURE     High concentrated coal-water slurry is produced by coarsely crushing coal, thereafter pulverizing the coarsely crushed coal, together with water and a slurry dispersant, according to necessity, in a wet-type ball mill, and feeding back one portion of the finely pulverized coal slurry thus obtained into the inlet of the wet-type ball mill.
Patent CA-1199781-A (CA)
Inventor: OHNO JOHN M
IPC: C04B33/34
Filed: 1982-12-16
Granted: 1986-01-28
Abstract: ABSTRACT OF THE DISCLOSURE          Sintered silicon carbide cutting tool compos-ites containing diamond crystals are described.  They are made through a process comprising separately compacting carbon binder materials, one of which contains superhard crystals, into a cutting tool insert configuration when the crystals are concentrated in the cutting edges, in-filtrating the insert with liquid silicon and sintering and nitriding the insert to convert the silicon to silicon carbide and silicon nitride.
Patent CA-1193561-A (CA)
Inventor: KUBIC NICK
IPC: B65F1/08
Filed: 1982-12-23
Granted: 1985-09-17
Abstract: DE La DIVULGATION: L'invention à trait à un perfectionnement aux poubelles à pédale du type comprenant un panier amovible excentriquement suspendu autour d'un axe à l'intérieur d'une boîte verticale pourvue d'un couvercle monté sur pivot sur l'un de ses rebords supérieurs, et dans lesquelles l'ouverture du couvercle s'obtient par action d'une pédale sur la base du panier pour faire basculer ce dernier autour de son axe de suspension et soulever son extrémité diagonalement opposée à la pédale de façon à ainsi actionner un mécanisme redressant le couvercle. Ce perfectionnement est caractérisé en ce que la pédale fait partie intégrante du panier, la boîte étant pourvue d'une ouverture donnant libre accès à la pédale depuis l'extérieur de la boîte. Le panier est en outre suspendu au moyen de deux pivots disposés dans la partie supérieure avant du panier, chacun desdits pivots reposant dans un gond solidaire de la boîte. Selon l'invention, le mécanisme pour redresser le couvercle comprend également un doigt solidaire du panier. Ce doigt fait saillie sur le rebord supérieur du panier du côté où se trouve monté le couvercle, et a une extrémité arrondie venant prendre appui et suivre le contour d'une came solidaire du dessous du couvercle. Cette dernière came est elle-même pourvue d'une butée pour prévenir une trop grande ouverture du couvercle. La poubelle a pédale selon l'invention a un coût de fabrication réduit, tout en ayant une structure qui permet d'éviter une trop grande ouverture du couvercle et un décrochage accidentel du panier de son axe de suspension.
Patent CA-1202811-A (CA)
Title: Dog food of improved palatability
Inventor: CITARELLA WILLIAM P
IPC: A23K40/30
Filed: 1983-01-26
Granted: 1986-04-08
Abstract: ABSTRACT DOG FOOD OF IMPROVED PALATABILITY Dry dog foods are made more appealing to dogs by applying a surface coating containing ground, dried Piper nigrum fruit. The coating may be tallow which is applied at a level of at least 4% and less than 8% based on the total weight of the dog food or the coating maybe a powderous gravy former at a level between 0.5% and 10%. In either case, the coating will contain from 0.0001 to 0.01 total weight percent of ground, dried Piper nigrum fruit.
Patent CA-1203095-A (CA)
Inventor: TAYLOR WILLIAM
IPC: A01B71/08
Filed: 1983-02-04
Granted: 1986-04-15
Abstract: ABSTRACT          "Safety guard for power-take-off shaft"  A guard for a power transmission shaft such as a tractor pto shaft 18,20 comprises a flexible convoluted tubing 24 with end couplings 26 which together totally enclose the rotating parts.  The tubing 24 can extend and retract axially to suit a variety of shaft lengths, and can flex transversely to accommodate turning of the tractor/implement combination. A tube 34 journalled on bearings 36, or equivalent bearing means, prevents damage to the tubing 24 by the shaft 18,20.
Patent CA-1201329-A (CA)
Inventor: RIDLEY ROBERT R
IPC: B21D17/02
Filed: 1983-02-10
Granted: 1986-03-04
Abstract: TOOTH FORMING TOOL FOR SPLINING TUBULAR ELEMENTS                Abstract A tool is provided for pressure forming teeth in the periphery of a cylindrical, tubular workpiece such as a power transmission member by rolling.  The tool has an improved tooth generating configuration which improves the flow characteristics of the metal in the workpiece and develops uniformity of tooth wall thickness during the tooth generating process.
Patent CA-1206525-A (CA)
Title: Circuit d'alimentation d'une sonde a courants de  foucault
Inventor: REBOUR ALAIN
IPC: G01N27/90
Filed: 1983-02-10
Granted: 1986-06-24
Abstract: L'invention trouve une application dans le contrôle non destructif de pièces métalliques, notamment de tubes et consiste en un circuit d'alimentation d'une sonde à courants de Foucault à deux enroulements comprenant deux voies d'alimentation en parallèle reliées à la sonde par un câble, chaque voie comprenant un enroulement de référence et un circuit d'amplification ayant une entrée et une sortie, l'une des extrémités de l'enroulement de référence étant reliée à la sortie du circuit d'amplification et l'autre à l'entrée dudit circuit par l'intermédiaire d'une résistance de contreréaction, caractérisé en ce que le circuit d'amplification de chaque voie comprend un premier amplificateur ayant une entrée constituant l'entrée du circuit d'amplification et une sortie qui est reliée à un accès de mesure absolue, une première résistance dont une extrémité est reliée à la sortie du premier amplificateur, un second amplificateur à une entrée reliée à l'autre extrémité de la première résistance et une sortie constituant la sortie du circuit d'amplification, et une seconde résistance connectée entre la sortie et l'entrée du second amplificateur.
Patent CA-1197315-A (CA)
Title: Satellite dual antenna pointing system
Inventor: KEIGLER JOHN E
IPC: G01S19/25
Filed: 1983-02-17
Granted: 1985-11-26
Abstract: SATELLITE DUAL ANTENNA POINTING SYSTEM                         Abstract A satellite antenna pointing system for separately pointing separated transmit and receive high gain antenna systems includes means for separately and sequentially applying a beacon signal to the transmit and receive antenna systems and a broad beam width antenna which has a coverage area greater than the overall coverage region of the spot beam antenna systems.  The system includes ground stations located at or near the periphery of the overall coverage region adapted to receive these beacon signals. At a central control station these beacon signals are compared to provide first signals proportional to the ratio of said beacon signals received from said transmit antenna system and said broad beam width antenna and second signals proportional to the ratio of said beacon signals received from said satellite receive antenna system and said broad beam width antenna.          The central station generates from said first signals transmit antenna control signals which are sent to the satellite to control the orientation of said transmit antenna system.  Likewise, the central control station generates from the second signals receiver antenna control signals which are applied to the satellite to control the orientation of the satellite receive antenna system.