baber/WOPTO huggingface dataset:
Patent CA-1082772-A (CA)
Inventor: CHAMBERS DEREK
IPC: H02M3/335
Filed: 1977-06-08
Granted: 1980-07-29
Abstract: SWITCHING POWER SUPPLY               Abstract of the Disclosure A preregulator power supply having drive and control cir-cuits which are isolated or floating alternately from the input and output leads to permit direct coupling to the power switch-ing regulator device without requiring isolation devices such as transformers or optical isolators.  This is achieved by an added series winding on the output choke, the common junction of which is connected to the output of the switching regulator and also forms the return lead for the floating drive and control circuits, while the added winding provides a sample output voltage for comparison by the floating drive and control cir-cuits to control the width of pulses fed to the switching regulator device.  A free-wheeling diode is also connected from the output of the switching regulator to an output ter-minal to maintain current in the choke during the OFF cycle of the switching regulator and provide several isolated regu-lated voltages in windings magnetically coupled to the choke.
Patent CA-1093475-A (CA)
Inventor: STAHL WERNER
IPC: B01D25/38
Filed: 1977-06-14
Granted: 1981-01-13
Abstract: Abstract of the Disclosure A disk-filter apparatus in which a filter disk is rotatable about a horizontal axis and lies substantially in a vertical plane to collect filter cakes on opposite sides of the disk.  The filter cakes are each treated with a liquid from an array of ducts parallel to the filter cake and from which the liquid is distributed onto the filter cake.  The ducts of each array are supplied at least in part through overflow boxes or weirs to control the pressure.  The number of openings, spacing of the ducts and openings size are all selected to obtain the most homogeneous distribution of liquid onto the filter cakes that is possible.
Patent CA-1096879-A (CA)
Title: Deposit control additives
Inventor: LEWIS ROBERT A
IPC: C10L10/04
Filed: 1977-06-20
Granted: 1981-03-03
Abstract: ABSTRACT OF THE DISCLOSURE                  DEPOSIT CONTROL ADDITIVES        Deposit control additives for internal combustion engines are provided which maintain cleanliness of intake systems without contributing to combustion chamber deposits.  The additives are polyoxyalkylene carbamates comprising a hydroxy- or hydrocarbyloxy-terminated polyoxyalkylene chain of 2-5 carbon oxyalkylene units bonded through an oxycarbonyl group to a nitrogen atom of ethylene-diamine.
Patent CA-1062568-A (CA)
Inventor: MANSFIELD WILFRED P
IPC: F01P3/12
Filed: 1977-06-21
Granted: 1979-09-18
Abstract: ABSTRACT     A structural unit for an internal combustion engine, including an engine region (for instance, a part of a cylinder head directly exposed to the cylinder firing zone) that requires direct cooling in use.  Instead of applying the cooling to the region itself, it is applied to a separate structure with a connexion to the region, the section of the connexion corresponding in shape with that of the region itself.  Both gaseous and liquid cooling of the structure are described.
Patent CA-1073926-A (CA)
Inventor: HESTERMANN KLAUS
IPC: C07F9/50
Filed: 1977-08-09
Granted: 1980-03-18
Abstract: PRODUCTION OF ALKYLPHOSPHINES      ABSTRACT OF THE DISCLOSURE: Alkyl phosphines of the general formula:             RnPH3-n                (I) are made. To this end hydrogen phosphide, a primary or a secondary phosphine is reacted with an alkylamine of the general formula:                  RnNH3-n             (II) in a molar ratio of 0.1 to 10 mols of the alkylamine of formula II per mol of hydrogen phosphide orprimary or secondary phosphine. The reaction is effected at a 150 to 400°C, at atmospheric pressure or a superatmos-pheric pressure up to 1 atmosphere gauge, and in contact with a catalyst comprising active carbon, copper (II) chromite, or one or more metals of Group Ib or VIII of the Periodic System of the elements. The starting materials are passed through a reaction zone at a rate which permits a contact time between them and the catalyst of 0.1 to 400 seconds.
Patent CA-1077134-A (CA)
Inventor: CILIBERTI FRANK L JR
IPC: H01M6/44
Filed: 1977-08-09
Granted: 1980-05-06
Abstract: POROUS LIGHT WEIGHT BATTERY FILLER           By:  Frank L. Ciliberti, Jr.     ABSTRACT     A method for encasing electrochemical cells in a porous structure enabling individual cell venting, and a battery utilizing the porous structure.
Patent CA-1058453-A (CA)
Inventor: STECKENRIDER PAUL E
IPC: D05B65/02
Filed: 1977-08-29
Granted: 1979-07-17
Abstract: ABSTRACT     A sewing machine thread trimming mechanism for severing both the needle thread and bobbin thread close to the workpiece at the end of a stitching operation and for providing a sufficient length of bobbin thread after trimming so that stitching on a succeeding seam may proceed.  The thread trimming mechanism includes a trimming device having two pivotly connected moveable blades which are swingably mounted beneath the sewing machine throat plate.  One of the blades is mounted for movement into the needle thread and bobbin thread path whereby engaging and carrying the same into severing engagement with the second moveable blade.  The second moveable blade is eccentrically pivoted relative the first blade and is provided with a floating fulcrum which controls the movement of the second blade so as to produce a true scissor like action between the two blades.          The thread trimming mechanism further includes a bobbin thread pull-off which engages and withdraws a sufficient length of bobbin thread prior to severance of the thread by the trimming mechanism.
Patent CA-1099126-A (CA)
Inventor: SCHWERDTLE FRIEDHELM
IPC: A01N47/36
Filed: 1977-12-16
Granted: 1981-04-14
Abstract: HERBICIDAL COMPOSITIONS          Abstract of the disclosure:          Composition containing as active ingredients 2-[4-(4'-chlorophenoxy)-phenoxy]-propionic acid lower alkyl ester, or 2-[4-(2',4'-dichlorophenoxy)-phenoxy]-pro-pionic acid lower alkyl ester, or 2-[4-(2'-chloro-4'-bromo-phenoxy)-phenoxy]-propionic acid lower alkyl ester, or 2-[4-(4'-trifluoromethylphenoxy)-phenoxy]-propionic acid lower alkyl ester, in combination with 3-ethoxy-carbonylaminophenyl-N-phenyl carbamate or 3-meth-oxycarbonylaminophenyl-N-(3'-methylphenyl)-carbamate, or N-3-chloro-4-ethoxyphenyl-N',N'-dimethyl urea, or N-(2-benzthiazolyl-N ,N'-dimethyl urea, or 3-methyl-4-amino-6-phenyl-1,2,4-triazin-5(4H)-one have a synergistic effect against weed grasses.
Patent CA-1065910-A (CA)
Inventor: GARRICK JOSEPH C
IPC: F16J15/40
Filed: 1978-01-09
Granted: 1979-11-06
Abstract: S H A F T   S E A L   S Y S T E M         F O R  A  R O T A R Y  M A C H I N E      ABSTRACT OF THE DISCLOSURE         A shaft seal system to prevent pressurized working substances contained within a rotary machine from escaping to surrounding areas of relatively lower pressure includes a first seal disposed between a high pressure region and a first region operating at a relatively lower substantially constant pressure.  A second seal is disposed between the high pressure region and a second region operating at a relatively lower variable pressure.  Sealing fluid is delivered to the high pressure region whereat the fluid flows axially in opposite directions along the shaft to the first and second regions.  The flow of fluid toward the second region is restricted to a greater degree than the flow of fluid toward said first region.  Changes in the flow of fluid through said first and second seals to the first and second regions resulting from changes in the operating pressure of the second region are mon-itored.  A valve regulates the flow of sealing fluid to the high pressure region in accordance with the monitored changes in fluid flow to maintain a substantially con-stant flow of fluid toward the first region irrespective of changes in the operating pressure of the second region.
Patent CA-1097505-A (CA)
Inventor: CARLBERG JOHN R
IPC: B01J45/00
Filed: 1978-01-30
Granted: 1981-03-17
Abstract: EXTRACTION OF COBALT, COPPER AND NICKEL VALUES FROM AMMONIACAL SOLUTIONS.     ABSTRACT OF THE DISCLOSURE      Cobalt, copper and nickel values are separated from ammoniacal aqueous solutions by contacting the solutions with a chelate exchange resin of polymerized ar-vinylbenzyl-amino dicarboxylic acids whereby the cobalt, copper and nickel values are loaded on the chelate exchange resin, stripping the cobalt, copper and nickel values from the loaded chelate exchange resin by contacting the loaded resin with a mineral acid and restoring the capacity of the chelate exchange resin when it falls below a predetermined value by reacting the degraded chelate exchange resin with an aqueous solution of a halo salt of a carboxylic acid, the aqueous solution being maintained at a pH value greater than about 8.                             (1)
Patent CA-1085698-A (CA)
Inventor: MAISONNEUVE HUBERT
IPC: G01B21/22
Filed: 1978-02-01
Granted: 1980-09-16
Abstract: Abstract of the Disclosure A hydro mechanical condition-responsive servo control valve for controlling a variable condition, such as position or rate of change of position, of a remote element, comprises a rotary fluid valve controlled by a differential gear train arranged to register differential movement between two input shafts, one of which is connected for movement according to a desired input condition and the other of which is alternatively connected either to register the actual element condition or a reference [datum] condition; the rotary valve including mating stationary and rotary valve plates each incor-porating fluid flow ports cooperatively arranged on the mating plate surfaces thereby to control fluid flow from a fluid inlet to a fluid outlet in accor-dance with the relative position or movement of said two input shafts.
Patent CA-1086338-A (CA)
Inventor: CAROSSINO ANDRE
IPC: B25B5/00
Filed: 1978-03-07
Granted: 1980-09-23
Abstract: Title of the Invention CLAMPING DEVICE FOR A MACHINE TOOL            Abstract of the Disclosure The clamping device comprises a housing and an anchoring device for fixing the housing to the table of a machine tool. A jaw for clamping the work to be machined to the table and a lever extending the jaw are both pivotally mounted on a pivot pin carried by the housing. An actuating device engages one end of the lever for shifting the lever about the pivot pin and is accessible from outside the housing.A detachable coupling device renders the lever rigid with the jaw in any one of a number of relative angular positions so that, when the actuating device shifts the lever, the lever and the jaw move together for clamping the work. A spacer blo-ck can be combined with the clamping device. The block has on its top side a cavity for receiving the anchoring device of the clamping device and a lock member for engaging an aperture in the housing. The block has a bottom side provided with an anchoring device identical to the anchoring device of the clamping device and with an aperture for receiving the lock member of an identical spacer block placed thereunder. Consequently, a plurality of superimposed spacer blocks may be employed.
Patent CA-1056239-A (CA)
Title: Device for producing strong swirls in air-fuel mixture within combustion chamber for internal combustion engine
Inventor: NAKAMURA HIROKAZU
IPC: F02M7/00
Filed: 1978-03-23
Granted: 1979-06-12
Abstract: ABSTRACT OF THE DISCLOSURE            This invention relates to a novel internal combustion engine.  The engine comprises a piston, a cylinder block and a cylinder head which together define a single combustion chamber.          An intake and an exhaust port are provided which communicate with the chamber with a main intake passage for introducing the air-fuel mixture into the intake port and a throttle valve in the intake passage.  A spark plug is provided at a predetermined position within the chamber.  A sub-intake valve is provided in the form of a sub-piston reciprocable with a cylindrical bore in the head and a sub-intake passage opens unto an inner peripheral wall of the cylindrical bore.  An injection passage communicates with the cylindrical bore at one end and a means is provided for supplying gas to the sub-intake passage.  The arrangement is such that the reciprocation of the sub-piston opens and closes communication between the sub-intake passage and the injection passage.  The sub-intake valve opens at least during a suction stroke of the first piston and the sub-piston moves towards one end of the cylindrical bore during a compression stroke of the first piston.  In doing so, a high speed of gas is injected from the injection passage into the combustion chamber during a suction and a compression stroke to promote a swirling action and turbulence in the fuel-air mixture.  This improved mixing produces a more efficiency engine thereby reducing fuel consumption and the production of pollutants, particularly during idling.
Patent CA-1077598-A (CA)
Inventor: PLIML FRANK V JR
IPC: H01R33/955
Filed: 1978-04-25
Granted: 1980-05-13
Abstract: GRAVITY ACTUATED LIGHT SOCKET        AND SWITCH MEANS     Abstract A combined gravity operated light socket and switch in-cluding a base, fastening means extending from one side thereof and a dielectric housing extending from the other side, the housing being divided into two adjacent chambers. The first chamber is open-ended forming a light socket and the second chamber houses a switching mechanism. The switch includes a headed co-axial shaft extending between the chambers with the head acting as a contact in the base of the socket and the opposite end carrying a flat centrally flanged teeter-totter element supporting a rolling ball and arranged for predetermined angular movement upon angular shifting of the housing. The angular movement of the flat element is limited by stop means, one of which is a contact, there-by producing an on-off status depending on the angular placement of the unit.
Patent CA-1105290-A (CA)
Inventor: COX BRUCE M
IPC: G01F1/78
Filed: 1978-05-02
Granted: 1981-07-21
Abstract: ABSTRACT OF THE DISCLOSURE           A flow meter for measuring mass flow is disclosed having two vibrating U-shaped tubes, a means for vibrating the tubes, and sensors for detecting the coriolis force couple which results from the vibration and the flow  of the material to be measured through the meter.  The U-shaped tubes include spaced apart inlet and outlet sections connected to a fixed member at one end, and having the sensors at the other end thereof.  The fixed ends are more closely spaced together than are the other ends having the sensors for increasing the moment arms acted on by the coriolis force couple for more easily detecting twist of said U-shaped tubes.          The U-shaped tubes also are arranged to have the same natural of frequency for longitudinal oscillations and for torsional oscillations.
Patent CA-1110792-A (CA)
Inventor: SAHARA MASAO
IPC: C08L75/04
Filed: 1978-06-15
Granted: 1981-10-13
Abstract: Abstract of the Disclosure A destructible marking film having a thickness of about 30 to about 100 microns and a destructibility of not more than 150 kg.cm/mm, said film being composed of a resin composition comprising (A) 100 parts by weight of a vinyl chloride resin having a degree of polymerization of about 600 to about 1,600 and optionally containing not more than about 15% by weight of comonomer unit, (B) about 10 to about 100 by weight of a thermoplastic urethane resin, (C) about 2 to about 15 parts by weight of an ethylene/vinyl ester copolymer, and (D) about 10 to about 150 parts by weight of a pigment; a process for preparing the marking film; and a method for marking by applying the same to the surface of a substrate.
Patent CA-1093940-A (CA)
Inventor: STRANDLY INGVALD
IPC: D06H5/00
Filed: 1978-07-05
Granted: 1981-01-20
Abstract: Abstract of the Disclosure A method of providing a row of loops at each end of a forming fabric or a similar fabric, comprising two layers of weft threads, warp threads interconnecting the weft layers, and a locking wire intended to interconnect said rows of loops to form an endless fabric web, The weft threads in a first zone closest to one end edge of the fabric are permanently removed, whereafter the weft threads in an adjacent second zone are temporarily removed and the tem-porarily removed, or alternatively a corresponding number of weft threads, as well as one or several thin folding wires and one coarse folding wire are arranged as a warp in a loom-like sewing machine known per se, wherein said coarse wire temporarily replaces the locking wire intended finally to interconnect the two fabric end edges.
Patent CA-1132827-A (CA)
Title: Electrophotographic toner comprising particles  of a specific size distribution
Inventor: ABBOTT JERRY J
IPC: G03G9/08
Filed: 1978-07-13
Granted: 1982-10-05
Abstract: ELECTROPHOTOGRAPHIC TONER                       Abstract A toner material for use in developing images in an electrostatographic device is disclosed.  The toner particles are initially classified according to a size distribution wherein less than 15% by weight are greater than 16 microns, between 7 and 15% by weight are less than 5 microns the remainder being from 5 to 16 microns and wherein the median particle size by weight is from 8 to 12 microns.          The toner is used in a developer mix with carrier particles, and preferably the toner carrier mix is equilibrated such that the action of the developer mix and the machine provide a toner particle size distribution wherein less than 12% by weight are greater than 16 microns, between 15 and 30% by weight are less than 5 microns, the remainder being from 5 to 16 microns, and wherein the median particle size by weight is between 6.5 and 9.5 microns.  An equilibrated toner particle distribution is also disclosed.
Patent CA-1104034-A (CA)
Inventor: CUSHING DONALD S
IPC: A47L15/42
Filed: 1978-10-13
Granted: 1981-06-30
Abstract: DISHWASHER WITH IMPROVED BYPASS FILTER ARRANGEMENT                         ABSTRACT OF THE DISCLOSURE             An automatic dishwashing machine is provided with bypass soil-collecting and filter means disposed independent of the sump whereby food soil suspended in the recirculating washing liquid is filtered and collected in a receptacle during the washing/rinsing operation. It includes supplemental liquid collecting means dis-posed in a flow path separate and upstream of the soil-collecting means and operative to channel an additional quantity of recir-culating washing liquid to the soil-collecting means. Drain means removes the washing liquid and the filtered food soil from the receptacle during the drain cycle.
Patent CA-1103614-A (CA)
Inventor: FOWLER MICHAEL C
IPC: C01B5/02
Filed: 1978-10-26
Granted: 1981-06-23
Abstract: LASER PHOTOCHEMICAL SEPARATION      OF HYDROGEN ISOTOPES                     ABSTRACT OF THE DISCLOSURE             A method of separating isotopes of hydrogen utilizing isotopically selective photodissociation of organic acid is disclosed.  Specifically acetic or formic acid contain-ing compounds of deuterated and hydrogenated acid is irradiated by radiation having a wavelength in the infrared spectrum between 9.2 to 10.8 microns to produce deuterium hydroxide and deuterium hydride respectively.      Maintaining the acid at an elevated temperature signifi-cantly improves the yield of isotope separation.
Patent CA-1081549-A (CA)
Title: Blanking and forming tapered wall articles
Inventor: DEVENEY CHARLES H JR
IPC: B21C1/26
Filed: 1978-11-09
Granted: 1980-07-15
Abstract: Abstract of the Disclosure Elongated, thin wall shells are formed from substan-tially circular blanks cut from sheet material by steps including providing a blank in a blank holder on a die having an effective entrance and exit aperture, the entrance aperture having an extent substantially commensurate in size with the size of the blank to be drawn, the die having a cavity, the wall of which converges inwardly from the entrance aperture to the effective exit aperture.  The wall connecting the entrance and exit aper-tures is defined by an arc of a sector of a circle, the sector having an angle in the range of 12 to 34°.  The thin wall shell is formed by displacing the blank through the die by action of a punch.
Patent CA-1107277-A (CA)
Inventor: VORBRUEGGEN HELMUT
IPC: C07H19/06
Filed: 1978-12-19
Granted: 1981-08-18
Abstract: ABSTRACT OF THE DISCLOSURE The present invention provides a proccss for the preparation of a nucleoside from a nucleoside base and a 1-o-acyl or 1-halogen derivative of a protected mono-, oligo- or poly-saccharide or a 2-o-acyl, 2-o-alkyl or 2-halogen derivative of tetrahydrofuran or tetrahydropyran, wherein reaction is carried out in one step in the presence of a catalyst and silylation reagent.
Patent CA-1096904-A (CA)
Inventor: PARR JOHN A
IPC: E05B65/19
Filed: 1978-12-22
Granted: 1981-03-03
Abstract: ABSTRACT OF THE DISCLOSURE          A vehicle with hood latch and release assembly having an abutment post on each side of the vehicle chassis and having a release member movable adjacent to the posts.  A hood is pivot-al up and down on the vehicle chassis and carries two latch mem-bers in the form of two cams which are pivotally mounted on the hood and are spring-urged thereon for engagement with each of the posts to hold the hood in the down position.  A rubber cus-hion is disposed above each abutment post in the down positions, for cushioning the hood downwardly on the post and thus on the chassis.  The release member extends across the vehicle and has a handle or grip portion on each end thereof so that the release member can be actuated from either side of the vehicle for releas-ing the latch and permitting the hood to be pivoted upwardly. The latch members are spring-urged to their securing position to hold the hood down, and there are angled guide-surfaces which permit lateral deviation of the hood but final lateral guidance thereof.
Patent CA-1114057-A (CA)
Inventor: TOYAMA AKIRA
IPC: H04N9/22
Filed: 1978-12-28
Granted: 1981-12-08
Abstract: ABSTRACT OF THE DISCLOSURE             A control system for a beam index cathode ray tube momentarily gates or turns off all beam current at the transition from one color modulating signal to another. The resulting dip in the electron beam density, as it scans across an index phosphor stripe located between adjacent color phosphor areas, produces a substantially corresponding dip in the index signal derived from excitation of the index phosphor stripe by the electron beam.  The dip in the index signal is detectable as an indication of the phase of the index signal substantially independent of difference in the amplitude of the electron beam current.
Patent CA-1087559-A (CA)
Inventor: AHO KENNETH A
IPC: B65D81/32
Filed: 1979-02-21
Granted: 1980-10-14
Abstract: ABSTRACT     A container for two fluids to be mixed just prior to use in which a rigid, fluid-tight, primary con-tainer contains the first fluid and has a cover formed with two spaced parallel slots.  An elongate, flexible, plastic bag contains the second fluid within the primary container and has its ends extending out of the slots in the cover of the primary container, and a squeegee is mounted in one or the slots to squeeze the fluid from the plastic bag as it is pulled therethrough.  A strip of tape covers the projecting ends of the bag and is removably adhered to the cover therearound to seal the container and retain the ends or the plastic bag during shipment and storage to maintain the fluids separate until they are to be mixed for use.