baber/WOPTO huggingface dataset:
Patent CA-1042524-A (CA)
Inventor: RUEGG FRANK A
IPC: H03H11/12
Filed: 1975-08-08
Granted: 1978-11-14
Abstract: Abstract An active filter for electronic circuits comprising a single frequency bandpass filter including two stages each com-prising a differential input high performance operational ampli-fier with the output of a second stage being connected in feed-back relationship to one input of the first stage and the output of the first stage being interconnected with one input of the second stage.  The output of the filter circuit is taken from the output of the first stage of the amplifier and the input to the filter circuit is the negative input of the first stage of the amplifier.
Patent CA-1058454-A (CA)
Inventor: RENTMEESTER KENNETH R
IPC: B21D22/28
Filed: 1975-09-10
Granted: 1979-07-17
Abstract: ABSTRACT OF THE DISCLOSURE    Drawn and ironed containers and method for manufacturing the same from metal stock having an organic resin applied to its surfaces are provided.  The resin is retained on the metal surfaces during the drawing and ironing procedure, resists break down at points of high stress, functions to effect a lowered coefficient of friction and exhibits plastic flow under high stress during the forming operation and serves as a base coat on the formed container.
Patent CA-1041164-A (CA)
Inventor: MAO GEORGE W
IPC: H01M10/08
Filed: 1975-09-26
Granted: 1978-10-24
Abstract: ABSTRACT OF THE DISCLOSURE     A maintenance-free battery having improved current draw characteristics is provided by adding elemental cadmium, or a cadmium affording compound such as cadmium sulfate to the electrolyte in amounts sufficient to decrease the current draw that would otherwise occur during overcharge.
Patent CA-1054545-A (CA)
Inventor: COLE EDWARD L
IPC: C10L5/00
Filed: 1975-11-25
Granted: 1979-05-15
Abstract: ABSTRACT           Low rank fuels are beneficiated by treatment with water at elevated temperature under superatmospheric pres-sure in the presence of hydrogen.
Patent CA-1046037-A (CA)
Inventor: LINDBLAD STIG M
IPC: B60R22/40
Filed: 1975-12-17
Granted: 1979-01-09
Abstract: ABSTRACT The invention relates to a device in connection with safety belts for vehicles and provided with an inertia sensible reel lock, which has a housing portion positioned excentrically relative to the revolving shaft of the reel. Said housing portion, enclosing an inertia body, is turnable relative to the housing of the reel.  The reel lock includes elements arranged to transfer a movement of alternation of the inertia body to a movement of alternation bet-ween a locking and releasing function of the reel lock.  Said movement is transferred along the turning axis of said housing portion.
Patent CA-1055709-A (CA)
Title: Process of controlling the fe++ content of sintered iron ore
Inventor: CAPPEL FRED
IPC: C22B1/20
Filed: 1975-12-30
Granted: 1979-06-05
Abstract: Abstract A process for controlling the quality of sintered iron ore in which the Fe++ content of the sintered ore is regulated by controlling the recycled-fines feed rate.  The recycled-fines feed rate, determined by a prior art recycled-fines balance con-troller, is modified by a desired fines withdrawal rate generated in an Fe++ content controller as the difference between the actual Fe++ content of the sintered ore and a desired content.           In a preferred form, the difference between the recycled-fines feed rate and the desired fines withdrawal rate is also applied to the Fe++ content controller.
Patent CA-1078572-A (CA)
Inventor: SPIER I MARTIN
Filed: 1976-03-29
Granted: 1980-06-03
Abstract: ABSTRACT OF THE DISCLOSURE            An injection molding process by which the char-acteristics of a product may be controlled by molding the product of two or more dissimilar melts by simultaneous in-jection of the dissimilar melts into the mold in such a manner that the dissimilar melts intermix at transitional zones to provide a one-piece construction with strong chem-ical and/or mechanical bonds at the transitional zones.
Patent CA-1044341-A (CA)
Inventor: CARLSSON TAGE
IPC: H01F27/10
Filed: 1976-04-02
Granted: 1978-12-12
Abstract: Title of the Invention ELECTRICAL EQUIPMENT HAVING RADIAL COOLING CHANNELS WITH MEANS FOR GUIDING COOLING FLUID THROUGH THE                     CHANNELS                         Abstract of the Disclosure In electrical equipment having windings with radial channels there-through, which may be formed by spacing coils apart in the axial direction, and which coils are spaced from the inner and outer insulating cylinders, there, are provided alternately along the length of the device guide members which have head portions which fill the spaces between the coils and the insulating cylinders and fit against the insulating cylinders, together with downwardly projecting wedge-like tongues which provide spaces of gradual decreasing cross-section, the tongues over-lapping at least two of the passages so that the flowing coolant is distributed between the passages as equally as possible.
Patent CA-1067966-A (CA)
Title: Induction heating apparatus using a pair of inversely series connected gate-controlled switching devices
Inventor: KIUCHI MITSUYUKI
IPC: H02M5/27
Filed: 1976-04-08
Granted: 1979-12-11
Abstract: ABSTRACT OF THE DISCLOSURE:         An induction heating apparatus comprises a pair of inversely series connected first and second gate-controlled switching devices and a pair of feedback diodes each being in-versely parallel connected to the first and second switching devices, respectively.  A high frequency resonant  circuit is connected in series or parallel circuit relation with the gate-controlled switching devices to a source of low frequency alter-nating voltage.  A gating circuit triggers the first and second switching devices in the order named during a first half cycle of the alternating voltage and in a reversed order during the second half cycle of the alternating voltage.
Patent CA-1079203-A (CA)
Inventor: ARVANITAKIS KOSTAS S
IPC: B01D33/27
Filed: 1976-04-15
Granted: 1980-06-10
Abstract: ABSTRACT OF THE DISCLOSURE     A method of and apparatus for clarifying contaminated liquid and/or recovering materials from a liquid utilizing horizontally disposed filter elements.  Upon expending the filter cake or upon removing a predetermined amount of materials, the filter chamber is automatically drained of the liquid contained therein and the filter cake automatically removed from the supporting septum.          Clarified liquid is recirculated through a precoat mixing chamber whereat filter aids are added to form a new filter cake on the filter elements.  The expended filter cake containing the collected materials is removed from the filter chamber for disposal or further processing.
Patent CA-1042841-A (CA)
Inventor: KOSCIK RICHARD A
IPC: B65D51/00
Filed: 1976-05-25
Granted: 1978-11-21
Abstract: ROTATABLE CLOSURE DEVICE     Abstract A one-piece plastic closure device for use in a filler hole, i. e. an oil filler cap or crankcase vent means, which seals the hole from the outside and can be applied with a fractional turn of the closure. The closure is adapted for use in a panel with an aperture having communicating lateral slots which telescopically accepts spring controlled retainer pads extending laterally from the closure body and that are moved to underlying relationship with the panel by rotation of the closure; the spring means acting on said retainer pads insuring continued sealing engagement of the closure with the panel.
Patent CA-1083170-A (CA)
Inventor: GOSSELINK EUGENE P
IPC: C07C43/11
Filed: 1976-08-30
Granted: 1980-08-05
Abstract: ABSTRACT OF THE DISCLOSURE      Compounds of the formula   wherein R1 and R2 are each straight chain, branched chain or cyclic alkyl, alkenyl, aryl, aralkyl or alkaryl moieties having from 1-30 carbon atoms, R3 is a C2-C8 alkylene, alkenylene, arylene or alkarylene moiety; R4 is a C1-C8 alkylene. alkenylene, arylene or alkarylene moiety: A is water-solubilizing anionic moiety: and n is from 1 to about 100 are useful as surfactants.  Compounds wherein groups R1, R2 and R3 and integer n are selectively chosen provide good clay soil detergency performance even in the absence of boulders.          The compounds are usefully combined With other organic surfactants to provide detergent compositions having good clay and oily soil removal performance.
Patent CA-1039140-A (CA)
Inventor: MANDAS PETER J
IPC: G07F1/04
Filed: 1976-09-01
Granted: 1978-09-26
Abstract: Inventors ABSTRACT OF THE DISCLOSURE A coin acceptor to prevent a cheating operation known as "stringing" wherein a coin is dropped into such an acceptor with a string attached and manipulated in a manner to make it appear that several coins have passed through the acceptor. This coin acceptor uses a series of coin position detectors with a counting circuit for sensing the sequence in which the coin passes the detectors.
Patent CA-1039769-A (CA)
Inventor: SCHNIPKE DENNIS E
IPC: F16L39/04
Filed: 1976-09-13
Granted: 1978-10-03
Abstract: Abstract of the Disclosure A swivel coupling having two independent inlets, each communicating with a separate outlet for connection to a dual-flow discharge nozzle.  Both outlets swivel about a common axis relatively to the inlets and the pair of inlets are free to swivel about a common axis at right angles to the first axis. One of the inlets is "floating" so as to have both rotational and longitudinal movement for adjustably connecting it to the discharge nozzle.
Patent CA-1054111-A (CA)
Inventor: MCLEAN ROBERT B
IPC: B65B7/06
Filed: 1976-09-13
Granted: 1979-05-08
Abstract: ABSTRACT OF THE DISCLOSURE            The present invention provides method and apparatus for effectively closing and sealing bags wherein the bag conforms to the shape of the contents, such as a block of asbestos, on all covered sides thereof.  Before closure the bag has its opening directed generally upwardly.  During the closure operation, opposed sides of the bag at the opening are held by vacuum against vertically movable and outwardly pivotable vacuum plates.  A sensor determines the position of the exposed surface  of the bag contents and the vacuum plates are positioned in response thereto  so that the pivot axis thereof is coplanar with the exposed surface.  Gripping means on the vacuum plate grips the upper edges of the open bag so that when the vacuum plates pivot outwardly a pair of outwardly projecting delta-shaped flaps are formed.  The bag then advances to a closure former whereat first one, and then the other flap, is rotated through 180° so that the first flap overlies the exposed surface and the second flap overlies the first flap.  Adhesive may be applied at various stages to ensure that the closure is permanent and that the bag is hermetically sealed.  The result is a sealed bag that conforms to the shape of the contents on all sides even though the exposed surface of the contents did not originally lie at an optimum or average elevation.  Thus the present invention will accommodate variations in the height of the contents from bag to bag to ensure a close fit of the sealed bag to the contents thereof.
Patent CA-1064600-A (CA)
Inventor: BOGDA MICHAEL V
IPC: H04Q3/54
Filed: 1976-09-27
Granted: 1979-10-16
Abstract: DIGITAL SWITCHING FOR PABX TELEPHONE COMMUNICATION SYSTEMS         ABSTRACT OF THE DISCLOSURE     Disclosed is a method and apparatus for digitally switching audio signals in a telephone communication system having a plurality of telephone stations with their voice communication channels selectively coupled by way of analog to digital and digital to analog converters through a switch matrix controlled from the output of a stored program controlled computer. The analog audio signals to be inputted to the digital switch matrix are converted to pulse width modulated digital signals, the digitized audio signals outputted from the matrix being reconverted to analog audio signals.
Patent CA-1053196-A (CA)
Inventor: TAKAZUKA TAKESHI
IPC: B65G47/14
Filed: 1976-10-29
Granted: 1979-04-24
Abstract: METHOD OF PACKAGING NEEDLELIKE                MAGNETIC METAL PIECES            Abstract of the disclosure In a method of packaging needlelike magnetic metal pieces, a container made of a non-magnetic material is used and a magnetic flux substantially parallel hori-zontally is produced in the container when packing or after packing the needlelike magnetic metal pieces into the container, thus causing the needlelike magnetic metal pieces in the container to be orientated and closely arranged.
Patent CA-1048946-A (CA)
Inventor: HOTCHKISS MARVIN E
IPC: F16D55/224
Filed: 1976-11-02
Granted: 1979-02-20
Abstract: DISC BRAKE              ABSTRACT OF THE DISCLOSURE          A disc brake of the floating caliper type having a rotating disc between a pair of lining carriers.  A torque plate on one side of the disc has arms extending radially outward to separate support members.  The support members extend over the edge of the disc for supporting both the lining carriers and permitting axial sliding movement of the carriers into and out of braking engagement with the disc. The caliper is also independently supported and in sliding engagement with the support members at the ends of the arms so that during braking the torque is transmitted directly to either one or the other of the arms and the only forces acting on the caliper member are the brake actuation force in a direction axially of the disc and the caliper support-ing force.
Patent CA-1068545-A (CA)
Inventor: DYKES DEWEY B
IPC: A23B4/00
Filed: 1976-11-17
Granted: 1979-12-25
Abstract: A dispensing head having a plurality of prong-like nozzles is use-ful for impregnating meat with tenderizing and flavoring liquids.  It may be fitted onto a pressure dispenser of the conventional type containing a bag to hold the liquid, a gas pressure space thereabout, and a reciprocable dispensing valve; or upon a squeezable bottle.  The dispensing head has several prong-like nozzles which project on parallel axes from a flat meat pressing surface, pref-erably having a rim.  Pressing this surface so spreads the meat against the sides of the nozzles as to seal them against the escape of liquid dispensed under superatmospheric pressure, thus forcing it to impregnate the meat.  The dispens-ing head is readily flushed; and provisions are made for re-mounting on the valve stem without discharging the contents of the container.
Patent CA-1077115-A (CA)
Inventor: DILLS RAYMOND L
IPC: F24C7/06
Filed: 1976-11-26
Granted: 1980-05-06
Abstract: ABSTRACT OF THE DISCLOSURE         An electric baking and broiling oven with an upper broiling element adjacent the top wall and a lower baking element adjacent the bottom wall. The baking element is of unique design having vertically arranged terminal ends supporting a plug connector. A mating plug receptacle is located in the rear wall of the oven liner slightly below the mid-height to receive the plug connector of the baking element.             The baking element is reversible, in that its plug connector may be inserted in the plug receptacle upside down, so the baking element can be inverted and arranged closely spaced from and parallel to the upper broiling element. Both heating elements are to be energized during broiling. A shelf is positioned between the two heating elements so food placed thereon may be broiled on both top and bottom sides simultaneously.
Patent CA-1068859-A (CA)
Inventor: UPMEIER HARTMUT
IPC: B29C48/10
Filed: 1976-12-07
Granted: 1980-01-01
Abstract: ABSTRACT OF THE DISCLOSURE   In a film blowhead for making tubular plastics film, internal cooling air is supplied through a central aperture in the blowhead to superposed cooling air supply rings which support the film on the inside and have outlet aperture facing the film as well as aperture extending axially therethrough for withdrawing the heated cooling air. A central tube is provided to supply the cooling air, the tube being connected to the air supply rings by radial air passages. The annular space between the central tube and the film blowhead and the air supply rings forms an annular passage for withdrawing the heated cooling air.
Patent CA-1093212-A (CA)
Inventor: RICE JEFFREY C
IPC: G01D5/249
Filed: 1976-12-20
Granted: 1981-01-06
Abstract: ABSTRACT OF THE DISCLOSURE     Each output signal from a synchro device is applied to an individual voltage comparator through a step-down transformer. Each comparator is biased to a predetermined threshold level and produces an output signal whenever the magnitude of the associated synchro signal exceeds the threshold in the proper polarity.  The comparator output voltages are applied to individual clocked flip-flops so as to produce binary output signals in a parallel format indicative of the rotor displacement of the synchro device.
Patent CA-1087436-A (CA)
Inventor: ELLIS EDRIC
IPC: C03C3/062
Filed: 1977-01-25
Granted: 1980-10-14
Abstract: ABSTRACT OF THE DISCLOSURE    Fast-response photochromic boron-free alumino-phosphate glasses which have silver halide crystals dispersed throughout the glass comprise, in weight percentages:-SiO2           10 to 17%        Al2O3          20 to 29%        P2O5           30 to 40%        R2O             8.5 to 17%        R'O             4 to 18% where R2O is taken from the group consisting of Na2O, K2O, and combinations thereof; R'O is taken from the group consisting of CaO, BaO and combinations thereof  provided that when in combination, CaO is present up to 7%; the total of SiO2 + Al2O3 + P2O5 amounting to not less than 69% by weight of the glass.          Preferably the total of SiO2 + P2O5 + Al2O3 is not less than 72% by weight of the glass.  The silver content of the glass, expressed as Ag2O, is preferably not less than 0.05%.          Refractive index nD can be corrected to the standard ophthalmic value of 1.523 by additions of TiO2, ZrO2 and/or PbO.
Patent CA-1060310-A (CA)
Inventor: CARLE UDO E
IPC: F01P3/00
Filed: 1977-02-01
Granted: 1979-08-14
Abstract: "Hydraulic Vibration Exciter and Method of Cooling Thereof"             ABSTRACT OF THE DISCLOSURE          A hydraulically operated vibration exciter for a vibrating compactor of the kind comprising a piston in a cylinder, the piston and cylinder being arranged to move to and fro relative to each other, a source of liquid under pressure, a pressure line connecting the source to the cylinder and means for causing the liquid to move to and fro between the source and the cylinder to bring about the relative movement between the piston and the cylinder is cooled by a method in which, in each stroke of the relative movement, a quantity of the liquid is withdrawn from the cylinder and this quantity is not returned to the cylinder in the subsequent stroke, but is replaced by a fresh quantity of liquid at a lower temperature.  To enable this cooling method to be carried out, an exciter of the kind just described is provided with a duct which leads from at least one of the end faces of the piston to an opening in the peripheral face of the piston, and the cylinder is provided with an opening in its wall with which the opening in the peripheral face of the piston comes into communication intermittently during the to and fro relative movement, the opening in the wall of the cylinder being connected by a liquid withdrawal line to a liquid reservoir.
Patent CA-1063887-A (CA)
Inventor: LAW S EDWARD
IPC: B05B5/08
Filed: 1977-03-02
Granted: 1979-10-09
Abstract: Abstract of the Disclosure Disclosed is a low volume, space-charge controlled electrostatic spraying which is particularly suitable for use in agriculture but is applicable to industrial and other settings as well.  A substance is sprayed through a relatively low voltage nozzle producing finely divided, electrostatically charged particles of the substance.  The charged particles are liquid droplets or dust particles, and are about 50 microns or less in size.  The space-charge density of the charged particles is monitored, and the deposition of particles on a calibration target is measured at different space-charge densities to establish an optimal space-charge density corresponding to optimum (e.g., maximum or most uniform) deposition.  As the charged particles are subsequently directed to target objects, such as plants, the space-charge density is monitored and the spraying and/or charging systems are controlled to maintain the established optimal level which corresponds to optimal deposition.
Patent CA-1064728-A (CA)
Title: Method and apparatus for reducing the transient effects of liquid compressibility in a liquid chromatography system
Inventor: HELMER JOHN C
IPC: G01N30/32
Filed: 1977-03-11
Granted: 1979-10-23
Abstract: ABSTRACT OF DISCLOSURE       Method and apparatus for damping oscillatory behavior and reducing the effective time constant incident to reattainment of equilibrium pressure and flow following a change in fluid pressure or flow rate in a liquid chroma-tography system.  The system may include a chromatographic column, a reservoir for a slightly compressible liquid mobile phase, and piston means cooperating with the reservoir and normally driven at a velocity which is constant over a given time interval for enabling pumping of the mobile liquid phase through the chromatographic column.  In accordance with the invention, a transient velocity component is superimposed upon the constant velocity component of the mobile liquid phase caused by the piston motion.  The transient velocity component is proportional to the reservoir volume and to the time derivative of pressure in the reservoir.          The additionally imparted motion damps the transient oscillations that arise from any pressure change imposed on the slightly compressible liquid phase.  Such pressure changes may be induced, e.g., during operation of the chromatography system in a gradient elution mode.
Patent CA-1049208-A (CA)
Inventor: HOGAN ELMER R
IPC: A22C25/14
Filed: 1977-03-29
Granted: 1979-02-27
Abstract: ABSTRACT           The head of a fish, particularly salmon, is severed from the body by first forcing the blunt rounded tip of a beheading knife against a gill cover to punch the gill cover inward.  The beheadinq knife is moved transversely of the fish and is contoured substantially to the contour of the pectoral girdle of the fish with opposite edges tapering toward the blunt tip   The edges of the knife are chamfered at the  convex side for wedging engagement with the pectoral girdle of the fish to guide the knife for movement through the fish along the profile of the pectoral girdle.
Patent CA-1073790-A (CA)
Inventor: HIROTA NOBUYOSHI
IPC: G01M3/12
Filed: 1977-04-18
Granted: 1980-03-18
Abstract: Abstract of the Disclosure:    A coating composition for leak detection in an air test, consists of an aqueous solution containing from 1.6 to 9.6 wt% of soluble starch, from 0.04 to 0.75 wt% of water-soluble acrylic resin, from 0.05 to 0.5 wt% of gelatin, and from 0.5 to 1.0 wt% of a foaming agent, and is adjusted to a pH range between 4 and 10.  The composition may be adjusted to a pH range between 4 and 6.          It may also be an aqueous solution containing a coagulation modifier, with the pH adjusted to a range between 8 and 10 with the addition of a small amount of caustic alkali.