baber/WOPTO huggingface dataset:
Patent CA-1154121-A (CA)
Inventor: HIDEG LASZLO
IPC: F02D41/24
Filed: 1980-07-24
Granted: 1983-09-20
Abstract: ABSTRACT         A fuel metering system for  an internal combus-tion engine uses a digital computer to calculate the desired fuel flow to maintain an air/fuel ratio required under the engine operating conditions existing at the time.  This desired fuel flow is obtained from a basic fuel metering system and, under equilibrium engine operating conditions, is the actual fuel flow demand of the engine.  Under transient engine operating conditions, the invention provides compen-sation of the basic fuel metering system calculations to take into account the effects of the transfer of fuel from the liquid state on the wall surfaces of the engine's in-take passages to the gas or vapor state in the inducted air/fuel mixture and also takes into account transfers of fuel from the inducted air/fuel mixture onto the intake passage surfaces as a liquid deposit.
Patent CA-1142051-A (CA)
Inventor: HORSEWELL HENRY G
IPC: A24D3/02
Filed: 1980-08-20
Granted: 1983-03-01
Abstract: A B S T R A C T    A rod-form body of smoke filtration material, preferably fibrous or filamentary, is wrapped in a fibrous or filamentary plugwrap comprising at least 50% by weight of fibres of filaments of thermoplastics material. The plugwrap may have permeability for air of not less than 10,000 Coresta units. The majority, suitably at least 80% by weight, of the material of the rod-form body is a material other than the said thermoplastics material of the plugwrap. Thus the smoke-filtration material may comprise crimped polypropylene tow and the plugwrap be composed substantially wholly of fibrous cellulose acetate or conversely. Portions of such filter rod may be subjected to a hot-shaping process to provi grooved filter elements.
Patent CA-1140160-A (CA)
Inventor: YOSHIMURA NORIAKI
IPC: C07C1/00
Filed: 1980-09-10
Granted: 1983-01-25
Abstract: TITLE OF THE INVENTION                   Process for producing alkadienes ABSTRACT OF THE DISCLOSURE        This invention provides an improved process for producing alkadienes which comprises (1) contacting butadiene or isoprene with a catalyst such as platinum or palladium or a compound of one of said metals in a sulfolane solution, in the presence of a tertiary lower alkylamine formate and at least one phosphine compound of the formula:                                             (I) [wherein R1 is a substituted or unsubstituted C1-10 hydro-carbon group;  R2 is H, a saturated aliphatic C1-5 hydro-carbon group, nitro or halogen; m is 1, 2 or 3; n is 0 or 1; x is 0, 1 or 2; y and z each is 0, 1, 2 or 3 (provided that and z are not zero concurrently and x + y + z = 3);  A is -SO3M (M is a cation selected from among H, alkali metals, alkaline earth metals and NH4) or the formate or an inorganic acid salt of   (R3 and R4 each means a saturated aliph-atic C1-4 hydrocarbon group)] in an amount of 4 to 200 moles per gram atom of the metal constituting the catalyst to form dimeric alkadienes;  (2) separating the reaction mixture into an alkadiene-containing layer and a catalyst-containing layer;  and (3) recycling the catalyst-containing layer to the alkadiene production process.  The improved process makes it possible to maintain the catalytic activity over a prolonged period of time and to facilitate separation and reuse of the catalyst.     `:;
Patent CA-1127828-A (CA)
Title: Procede d'elaboration d'une ceramique dense en  carbure de silicium
Inventor: BROUSSAUD DANIEL
IPC: C04B35/565
Filed: 1980-10-17
Granted: 1982-07-20
Abstract: Procédé de fabrication d'une céramique dense en carbure de silicium Ce procédé consiste à chauffer à une température supérieure à 1200.degree.C, sous vide, un mélange contenant une poudre de carbure de silicium en phase alpha et une po dre de bore, puis a fritter un échantillon de ce mélange à 2100.degree.C, sous atmosphère d'argon, après incorporation d'un produit carboné. Application à la fabrication de pièces de turbines à gaz.
Patent CA-1155223-A (CA)
Inventor: NISHIDA KATSUMI
IPC: G11B27/22
Filed: 1980-10-27
Granted: 1983-10-11
Abstract: ABSTRACT OF THE DISCLOSURE    In a tape player with a built in radio which tape player is equipped with a station selection circuit and a tape selection circuit, a circuit device for selecting a station as well as a tape, comprising: a group of pre-set switches for selecting a desired station as well as a desired piece of music recorded on the tape; a station selection circuit/tape selection circuit change-over switch for selectively changing over either one of said station selection circuit and said tape selection circuit; a switching circuit such as a gate circuit for rendering inoperative either one of said station selection switch and said tape selection circuit and for keeping the other in the waiting state or operation in response to the change-over operation of said change-over switch; manipu-lation of each preset switch of said group of preset switches rendering operative either said station selec-tion circuit or said tape selection circuit, which is kept in the waiting state for operation.
Patent CA-1144145-A (CA)
Title: Lifting and shifting apparatus
Inventor: HELLANDER KARL A
IPC: B66F11/00
Filed: 1980-11-19
Granted: 1983-04-05
Abstract: ABSTRACT     An apparatus for lifting and shifting the upper sweep in relation to the lower sweep in the construction of a large cylindrical cistern, comprising a support member hung on the upper edge of the lower sweep and provided with an upstanding carrier body. The upper edge of the latter extends parallel to the upper edge of the lower sweep to form a track. The carrier-body carries a lift member which in turn carries the upper sweep. The lift member is formed as a yoke, the cross portion of which rests on a wedge-shaped shifting member in turn resting on the carrier body. The wedge is reciprocably displaceable parallel to the lower sweep edge with the aid of a hydraulic cylinder. During a first phase of the forward travel, the lift member and the upper sweep are solely given a lifting movement, and during a subsequent forward movement the lift member and the upper sweep are also given a shifting move-ment. At the return movement of the wedge, the lift member and the sweep are first lowered in their shifted position, whereafter only the wedge and the lift member are returned to their initial positions.
Patent CA-1137530-A (CA)
Inventor: LAURITSEN RICHARD L
IPC: H01H35/34
Filed: 1980-12-18
Granted: 1982-12-14
Abstract: Abstract of the Invention A vacuum switch in which the diaphragm movement with increasing vacuum is opposed by two springs which determine the vacuum required to actuate the switch.  As the vacuum subsequently decreases one of the springs is rendered in-operative before the switch resets so the reset vacuum is determined by the one spring remaining effective.  The spring which is rendered inoperative is compressed between the actuator and an eyelet which can seat on the actuator (spring ineffective) or the housing (spring effective) and which also functions to limit motion of the actuator relative to the eyelet so the switch operated by the actuator cannot be overstressed.
Patent CA-1121360-A (CA)
Inventor: GASSON BRIAN C
IPC: C07D498/04
Filed: 1981-01-16
Granted: 1982-04-06
Abstract: ABSTRACT OF THE DISCLOSURE                          .beta.-LACTAM COMPOUNDS           A process for the preparation of a compound of the formula (I):                                 (I) wherein R1 is a CH2CH3 or CH2CH2CH3 group of a salt or ester thereof, which process comprises the reduction of an ester of a compound of the formula (II):       (II) wherein R2 is a CH=CH2 or CH=CH-CH3 group and thereafter is desired converting the thus-formed ester of the compound of the formula (I) to the corresponding acid or a salt thereof.  The compounds of of Formula (I) are used as in the preparation of pharmaceutical compounds of the formula (II).
Patent CA-1128518-A (CA)
Title: Process for preparing  5-cyano¬3,4'-bipyridin|-6(1h)-one,  amrinone intermediate,  directly from 4-picoline via  imminium salt
Inventor: GELOTTE KARL O
IPC: C07D213/84
Filed: 1981-02-25
Granted: 1982-07-27
Abstract: D.N. 3686 ABSTRACT OF THE DISCLOSURE The process which comprises reacting 4-picoline below about 30°C. with at least three mole equivalents of an inorganic acid halide, preferably phosphorus oxychloride, per mole of 4-picoline and excess dimethylformamide, reacting in solution the unisolated resulting N-[3-dimethylamino-2-(4-pyridinyl)-2-propenylidene[-N-methylmethaniminium salt (after adding the reaction mixture to cold water, adjusting the pH to about 8.0 and filtering off the precipitated inorganic cationic salts) with excess .alpha.-cyanoacetamide and at least three mole equivalents of base, and then isolating 5-cyano-[3,4'-bipyridin]-6(lH)-one in free base form (after neutralization) or in the form of its inorganic cationic salt.  Said 5-cyano-[3,4'-bipyridin]-6(lH)-one is an inter-mediate for preparing the cardiotonic amrinone.
Patent CA-1159909-A (CA)
Inventor: GREGORIAN ROUBIK
IPC: H03H17/00
Filed: 1981-05-27
Granted: 1984-01-03
Abstract: ABSTRACT OF THE DISCLOSURE An interpolation or smoothing filter circuit for a switched-capacitor system which transforms the sampled-and-held output signals from a switched-capacitor filter into sampled-and-held signals with a doubled sample rate.  The circuit comprises an operational amplifier whose noninverting input lead is connected to a switched-capacitor network which receives the sampled-and-held input signals at the normal sample rate.  The network includes two separate capacitors controlled by switches operable at two alternating clock phases and connected to provide the desired summation and holding of charges.  Feedback leads connected between the amplifier output lead and its noninverting input lead and containing additional capacitors cooperate with the input network to produce an output that is sampled-and-held at twice the sample rate of the input signal.
Patent CA-1173914-A (CA)
Inventor: HALVORSEN KENNETH S
IPC: A61B5/0265
Filed: 1981-06-08
Granted: 1984-09-04
Abstract: ELECTRODE ASSEMBLY FOR TEMPORARY PACING AND HEART MEASUREMENTS                          ABSTRACT An electrode assembly for use with a catheter, is made of a plurality of insulated wires.  The wires are bound together in a bundle by, for example, fine insulated wire for almost their entire lengths.  At one end of the bundle are free wire ends of different lengths on which are electrically conductive ferrules.  The ferrules are spaced apart axially when aligned with the bundle inside the catheter.  The wires are made of springy material so that the free wire ends separate widely outside the catheter.  Other cylindrical ferrules are mounted in axially spaced position on bared portions of the other end of the bundle, and encircle all the wires, but each ferrule is in direct electrical contact with only one of the wires.
Patent CA-1154069-A (CA)
Inventor: INSKIP MICHAEL
IPC: A47J27/21
Filed: 1981-06-18
Granted: 1983-09-20
Abstract: ABSTRACT         "AN ELECTRIC LIQUID HEATING APPLIANCE"         The appliance, e.g. an electric kettle, has a body shell (9), a heating element within the body shell and a switch housing (8) mounted on the outside of the body shell.  A switch operating member or dolly (13) is supported relative to the switch housing and is operable to open and close a pair of switching contacts to open and close a pair of switching contacts for interrupting and making respectively an electric-ally conductive path, which includes the heating element, between a pair of terminal pins.  The dolly can rock about a pivot (10) between two positions and is urged against the pivot by a leaf spring (19) acting between the dolly and a support (11).  The housing includes the pivot and the support and is formed as an integral plastics moulding.            Figure 1
Patent CA-1173938-A (CA)
Inventor: TOKUNO MASATERU
IPC: B26F1/06
Filed: 1981-06-30
Granted: 1984-09-04
Abstract: Abstract of the Disclosure A die cutter is proposed which die cuts a running web continuously into blanks by means of a blade and an anvil interlocked each other so that they will contact each other at a point moving from one end to the other. The web feed rolls or the cutting mechanism are electronically controlled so that a sufficient length of the web just for one cutting will be supplied to the cutting mechanism while it performs one cycle of operation.
Patent CA-1136982-A (CA)
Inventor: RUITER BRIAN A
IPC: E06B9/58
Filed: 1981-07-09
Granted: 1982-12-07
Abstract: Abstract of the Disclosure An insulating window shade is disclosed.  It consists of a pair of shades each with a roller and a flexible sheet wound on the roller and a plurality of spacers sequentially movable into the space between the sheets as they are unwound.          Each spacer extends from side to side of the sheets and is substantially in contact with both sheets so as to form a series of isolated pockets between the sheets.  Seals extend along each side of the shade for closing the ends of the pockets.
Patent CA-1177314-A (CA)
Inventor: MAHLMANN JAMES P
IPC: A23F5/20
Filed: 1981-08-17
Granted: 1984-11-06
Abstract: ABSTRACT Moist coffee is decaffeinated by extraction with a hygroscopic material.
Patent CA-1177046-A (CA)
Title: Liquid sorbent materials
Inventor: EISELE JOHN F
IPC: C08J7/046
Filed: 1981-08-24
Granted: 1984-10-30
Abstract: LIQUID SORBENT MATERIALS                           ABSTRACT           The invention relates to composite, liquid-sorbent media which can be applied to various substrates to provide improved liquid-sorbent materials.  The com-posite media comprise a liquid-sorbent underlayer and, overlying said underlayer, a liquid-permeable surface layer, the liquid sorptivity of said underlayer being greater than the liquid sorptivity of said surface layer. transparent sheets having the liquid-sorbent composite media coated on the surface are described as a preferred embodiment of the invention.
Patent CA-1173615-A (CA)
Title: Multi-extrusion die assembly for thermoplastic materials
Inventor: OHKI MASAHIKO
IPC: B29C48/12
Filed: 1981-08-27
Granted: 1984-09-04
Abstract: - 1 -Abstract: A multi-extrusion die assembly for thermoplastic materials avoids undesirable oozing out or exuding of thermoplastic material through mating surfaces between a die box and a preformer and undesirable deformation of extruded material at introducing passages by improve-ments in the disposition of the extruders and in the construction of the die box and preformer. Attaching and detaching of a block and a lower box with respect to the die box are also facilitated for efficient extrusion.
Patent CA-1173480-A (CA)
Inventor: BALASH FREDERICK A
IPC: H01H13/703
Filed: 1981-09-02
Granted: 1984-08-28
Abstract: MEMBRANE KEYBOARD AND METHOD OF FORMATION THEREOF            Abstract of the Disclosure A membrane keyboard and method of formation thereof is presented in which the spacing and insulation between fixed and movable circuit layers is achieved by a dielectric material screened or otherwise applied to one of the circuit layers in a predetermined pattern.  The dielectric pattern has openings to permit electrical contact between layers, and the dielectric pattern includes a discontinuous pattern of dielectric material on at least one of the contact elements to maintain separation between the contacts while still permitting actuation of the device.
Patent CA-1147976-A (CA)
Inventor: MOORE ROBERT W
IPC: F23Q1/06
Filed: 1981-09-15
Granted: 1983-06-14
Abstract: ABSTRACT OF THE DISCLOSURE An elongated shank has a handgrip at the rear end portion.  At the forward end portion there is a holder for releasably retaining a cigarette lighter of the throwaway gas or butane type having a conventional flint wheel and a gas valve actuator. An actuator rod is guided for reciprocable sliding movement along the shank.  The rod is urged forward along the shank by a biasing spring and may be pulled backward against the spring by a trigger adjacent the handgrip.  An integral outer extension of the rod, forward of the holder, is movable between extended and retracted positions by the biasing spring and the trigger, respectively. An elastic friction member, consisting of a backwardly extending, cantileverly supported, diagonally oriented coil spring is mounted on the outer extension and is movable backward by the trigger to engage and rotate the flint wheel and depress the valve actuator. This ignites the lighter and holds it ignited as long as the trigger is held. The device is adapted for lighting pilot lights of gas appliances, candles, fireplaces, barbecue grills, camping lights and stoves, and the like.
Patent CA-1142837-A (CA)
Inventor: COMER GLEN S JR
IPC: F16K31/46
Filed: 1981-11-03
Granted: 1983-03-15
Abstract: Limit Control For An Operating Member Abstract An overtravel prevention apparatus is provided whereby as a member approaches its predetermined limit of movement, a linkage system is actuated which engages with parts on the cable from the actuating lever to the valve spool which overrides the actuating lever and moves the actuating lever and the valve spool to a neutral position, preventing the member from moving beyond its predetermined limit.
Patent CA-1163130-A (CA)
Inventor: PERELLI MARVIN P
IPC: A01B73/04
Filed: 1982-01-11
Granted: 1984-03-06
Abstract: IMPLEMENT WING LIFT               ABSTRACT OF THE DISCLOSURE        An implement with a wing lift wherein the the wing is displaceable from a wheel supported floating, ground working position approximately 180° to a transport position where it lies inverted on the implement.  The wing lift includes a pair of toggle links with one link pivotally connected to the wing hinge, a stop means on the wing hinge, a lift arm pivotally connected to the implement central frame hinge structure and to the other toggle link and a hydraulic cylinder mounted on the central frame with the rod end pivotally connected to the lift arm and the other link of the toggle links.  The lift arm also has a roller for contact by the wing hinge ramp.  The toggle link construction allows the wing to float upwardly and down-wardly in the working position without affecting the cylinder.  The toggle links, upon abutting the stop, raise the wing when the cylinder is retracted until the links break wherein the roller engages the wins hinge ramp to support the wing to and in the inverted position without wing fall.  The procedure is reversed when the cylinder is extended to return the wing to the working position.
Patent CA-1183005-A (CA)
Inventor: LAFERTY JOHN M
IPC: C22B34/36
Filed: 1982-01-13
Granted: 1985-02-26
Abstract: AMMONIUM HYDROXIDE STRIPPING OF TUNGSTEN                   FROM ORGANIC SOLVENTS     ABSTRACT OF THE DISCLOSURE     A process for stripping tungsten values from a tungsten-bearing acidic liquid organic phase into a basic aqueous ammoniacal stripping solution comprises mixing the organic phase and the stripping solution with a high-shear mixing device to maximize the pH gradient between the organic phase and the aqueous solution whereby growth of any precipitated ammonium paratungstate crystals is minimized and the dissolution thereof is maximized and to strip the tungsten values from the organic phase into the stripping solution.
Patent CA-1174992-A (CA)
Title: Replication of virulent treponema pallidum in tissue  culture
Inventor: FIELDSTEEL ARNOLD H
IPC: C12N1/20
Filed: 1982-02-23
Granted: 1984-09-25
Abstract: ABSTRACT OF THE INVENTION           A method and materials are provided for replication of virulent Treponema pallidum in tissue culture, employing a modified Eagle's minimum essential medium, wherein said in vitro cultivated T. palladium can be utilized as a source of relatively pure organisms, free of host tissue, for the preparation of a vaccine against syphilis and as a source of organisms for use in specific immunological tests for syphilis.
Patent CA-1187748-A (CA)
Inventor: CLEM ARTHUR J
IPC: E02B3/12
Filed: 1982-02-26
Granted: 1985-05-28
Abstract: ABSTRACT OF DISCLOSURE      A method and a product providing for water-proofing soil utilizing a flexible support capable of venting gas coated with water swellable bentonite and covering the soil to be waterproofed with the coated support.
Patent CA-1172540-A (CA)
Inventor: GYTEL ULLA B
IPC: C02F1/52
Filed: 1982-03-03
Granted: 1984-08-14
Abstract: A B S T R A C T            The invention relates to an aluminium sulphate composition for water--purifying, paper-sizing and plant-dewatering purposes, the composi-tion comprising an aqueous solution of aluminium sulphate containing polynuclear complexes of the kind Alm(OH)n3n -n)+   in which m and n are positive integers. The composition has a total aluminium content, Altot, of between about 0.2 and about 2 moles per litre, and is a clear, stable solution up to a content of poly-nuclear complexes which greatly exceeds that previously thought pos-sible.            The invention also relates to a method for producing the composition, in which method a carbonate or hydrogen carbonate of alkali metal and an aluminium sulphate is brought into aqueous solution and the amount of carbonate or hydrogen carbonate is so selected in relation to the amount of aluminium sulphate that a given highest mole ratio OH/Al is obtained in the aqueous solution at the desired predeter-mined total aluminium content of the solution.
Patent CA-1195553-A (CA)
Title: Procede et dispositif de pulverisation d'une matiere  combustible solide
Inventor: KISSEL ROLAND
IPC: C10J3/50
Filed: 1982-06-29
Granted: 1985-10-22
Abstract: L'invention a pour objet un procédé et un dispositif de pulvérisation d'une matière combustible solide introduite à l'intérieur d'une enceinte au moyen d'un transporteur à vis par une filière débouchant à l'intérieur de l'enceinte et dans laquelle est formé par extrusion un boudin de matière comprimée, celle-ci étant désagrégée par au moins un jet de gaz injecté sous forte pression. Selon l'invention, on injecte le gaz à partir de l'intérieur du transporteur à vis et dans l'axe de chaque filière, chaque jet gazeux ayant une impulsion suffisante pour former sensiblement un cône centré sur l'axe du boudin en s'élargissant à l'intérieur de celui-ci, chaque boudin étant constitué d'un tube creux dont la paroi interne s'effrite et prend la forme du jet en libérant des particules qui sont aspirées dans le jet et introduites avec lui dans l'enceinte. L'invention s'applique spécialement à l'alimentation d'un réacteur de gazéification.
Patent CA-1182188-A (CA)
Inventor: KATO RYOCHI
IPC: G01F23/26
Filed: 1982-07-02
Granted: 1985-02-05
Abstract: Abstract of the Disclosure Disclosed herein is a capacitance sensor which comprises a pulse generating circuit; a plurality of variable delay circuits, each including as a component thereof a variable capacitance transducer and adapted to delay a pulse from said pulse generating circuit by a time lag corresponding to a capacitance value of the transducer and then output the thus-delayed pulse; and a phase discriminating circuit adapted to discriminate a phase difference of the pulses output respectively from the plurality of variable delay circuits and then output measured information.  The capaci-tance sensor is particularly effective as a liquid level detection sensor for drops-containing bottles.  It is not required for the above sensor to reset its detectable thresh-old level for every material or item to be measured, because unnecessary variables such as temperature changes and dielectric constant changes of the material or item are cancelled out.  The present capacitance sensor can be reduced in size, weight and fabrication cost.  It is also capable of detecting very small changes in capacitance.