baber/WOPTO huggingface dataset:
Patent CA-1054220-A (CA)
Inventor: BROWN HAROLD J
IPC: G05F1/70
Filed: 1978-06-20
Granted: 1979-05-08
Abstract: CONTROL SYSTEM FOR PHASE DISPLACEMENT REGULATOR CIRCUITS         ABSTRACT OF THE DISCLOSURE    A control circuit for a regulator circuit of the type in which the regulator output voltage and current are dependent upon the phase angle between an unregulated a-c input voltage wave and a regulating or control voltage wave.  The control circuit generates a reference signal that is locked in phase with the a-c input voltage wave and a control signal that is locked in phase with the control voltage wave.  Output voltage sensing circuitry is arranged to increase or decrease the phase angle between the control signal and the reference signal, as required, to maintain the output voltage of the regulator at the desired, regulated value.  A phase difference limiting network allows the control signal to vary freely in phase with respect to the reference signal so long as the control signal remains within an angular window of from 0° to 60° of lag behind the reference signal and assures that limits of this angular window cannot be exceeded.  A damping signal is utilized to assure that the rate of change of the phase angle between the control and reference signal is limited in a manner which affords both high control system stability and rapid dynamic response to changes in input voltage and output current.  OR-ing circuitry is also provided to allow the output current to reduce the regulator output voltage and thereby limit the regulator output current to a safe value when the output current attempts to rise beyond its highest rated value.
Patent CA-1101611-A (CA)
Inventor: WODITSCH PETER
IPC: C09C1/36
Filed: 1978-06-28
Granted: 1981-05-26
Abstract: Bayer 3416-LH:rw STABILIZING TITANIUM DIOXIDE PIGMENTS WITH                          VANADATES                 Abstract of the Disclosure A process for the production of a light-stable and weather-stable titanium dioxide pigment comprising precipitating onto the pigment in aqueous suspension a colorless vanadate of at least one of zinc, magnesium, calcium, strontium and barium at a pH-value above 7 in about 0.01 to 5% by weight, expressed as V2O5, based on TiO2.  Advantageously the pigment either before or after precipitation of the vanadate is coated with at least one oxide, oxide hydrate or phosphate of titanium, silicon, aluminum or zirconium.
Patent CA-1090246-A (CA)
Inventor: THOMAS RONNIE L
IPC: C09K8/72
Filed: 1978-08-08
Granted: 1980-11-25
Abstract: ABSTRACT           The permeability of a subterranean formation is increased by injecting into the formation, a conventional mud acidizing solution (HCl/HF) followed by a fluoboric acid solution.  Use of fluoboric acid as an overflush is believed to deter clay migration and thereby significantly reduce or delay production decline which is often otherwise encountered shortly after conventional mud acidizing treatments.
Patent CA-1120404-A (CA)
Inventor: RAO VEMULAPALLI D N
IPC: B22D19/04
Filed: 1978-09-05
Granted: 1982-03-23
Abstract: LOW COST CAST-IN-PLACE PORT LINER            ABSTRACT OF THE DISCLOSURE       A method and apparatus for insulating the exhaust passage of an internal combustion engine is disclosed.  A three-zone liner assembly is provided with an outer zone comprised of a room temperature vulcanizing silicone sleeve, an inner zone comprised of a stamped and seam welded high strength Al-Cr-steel alloy, and an inter mediate zone consisting of a ceramic wool mat.  The liner assembly is supported or enclosed within a mild carbon sheet metal sleeve which in turn may he bonded to the engine passage wall by use of a room-temperature-vulcanized silicone if of the insert type, or by fusion bonding during casting if of the cast-in-place type.
Patent CA-1092032-A (CA)
Inventor: DHABHAR DADI J
IPC: A61K8/36
Filed: 1978-10-17
Granted: 1980-12-23
Abstract: MOUTHWASH COMPOSITIONS                 Abstract of the Disclosure .       Physiologically acceptable mouthwash formulations con-taining sodium ricinoleate substantially free of haze and precipitation.
Patent CA-1103639-A (CA)
Inventor: WANDLER DONALD
IPC: F21V23/02
Filed: 1978-10-31
Granted: 1981-06-23
Abstract: SPORT LIGHT AND BALLAST MODULE     ABSTRACT A  weather-proof  light  fixture  includes  a  quick connect modular ballast assembly which is separably connected to a light reflector member mounted on a support surface.  A housing containing the ballast assembly has a lamp receptacle extending from a sidewall thereof.  The light reflector member includes a neck portion the end of which is butted against the housing,  receiving the lamp receptacle therein.   Outwardly projecting fastener arms extending from the neck portion each having  a  hollow  cavity  therein  are  rotated  over  posts protruding  from  the  ballast housing  sidewall,  and  located adjacent the lamp receptacle.   Slots contained within the fastener arms receive screw fasteners extending from the posts to secure the lamp ballast housing and reflector member in a joined  condition.   A gasket  disposed  between  the  end or the neck  portion  and  housing  side  wall,  renders  the  light fixture waterproof.
Patent CA-1118216-A (CA)
Inventor: UERPMANN ERNST-PETER
IPC: G21F9/34
Filed: 1978-11-24
Granted: 1982-02-16
Abstract: ABSTRACT OF THE DISCLOSURE       A final depository located underground for storing radioactive wastes contained in storable shielded containers, composed of at least one shaft extending downwardly from the ground surface, an underground passage, a radioactive waste storage region located above the underground passage, and a connecting passage connecting the storage region with the shaft or the underground passage.
Patent CA-1116015-A (CA)
Title: Apparatus for use in connection with dry transfer  lettering and analogous sheets
Inventor: DOWZALL MARTIN E
IPC: B41B13/02
Filed: 1979-01-30
Granted: 1982-01-12
Abstract: ABSTRACT OF DISCLOSURE           A drawing board device is described of particular value in composing signs using dry transfer lettering sheets. The board has a base and a horizontal rule mounted thereon and capable of moving vertically and horizontally. The rule has one or more magnetic clamps for sheets of transfer materials and one or more sets of register pins for registering with e.g. a preprinted line on or preprinted holes in the sheet.  The vertical movement of the rules is preferably stepped, the interline spacing between the lines of letters on the sheet being an integral multiple of the step length.
Patent CA-1114680-A (CA)
Title: Method and means for burning corncobs and  corn
Inventor: FREDERICK CHARLES V
IPC: F23J15/02
Filed: 1979-02-13
Granted: 1981-12-22
Abstract: ABSTRACT OF THE DISCLOSURE     A method and means for burning corn and corncobs is described.  The apparatus includes a conical or pyramidal shaped perforated floor having a central opening formed therein which is in communication with a first conveyor which supplies the material to be burned thereto.  A second conveyor extends around the peri-phery of the floor for carrying away the ashes of the burned material.  The first conveyor forces the corn-cobs or corn upwardly through the central opening to form a mound or pile of material thereon. The mound of material is ignited and air is forced upwardly through the perforated floor to enhance combustion so that the material is substantially completely burned.  The products of combustion are passed upwardly through a heat exchanger and filtered through the material delivered to the first conveyor before being exhausted to the atmosphere.
Patent CA-1133574-A (CA)
Title: High speed color apparatus
Inventor: DAMOUTH DAVID E
IPC: G03G15/01
Filed: 1979-03-08
Granted: 1982-10-12
Abstract: ABSTRACT OF THE DISCLOSURE          A high speed color reproduction machine comprised of four separate xerographic type processing units, one for each of the primary colors plus black. The multiple processing units are arranged in close nested relationship to one another with the image transfer stations thereof in close succession along the path of movement of the copy substrate material.  A combination air flotation type and vacuum based belt transport system is employed to bring copy substrate material from a supply source into transfer relation with the successive pro-cessing units.  Exposure of the processing unit's photoreceptors is simultaneous.  A precise dimensional relationship between photoreceptor length and spacing for each processing unit assures registration of the color images produced with one another.          Following transfer of the last color image, the image bearing copy material is brought to a fuser where the image is fixed.          The finished copy is thereafter discharged, or returned for a second duplex pass.  The photoreceptor of each processing unit comprises an endless photoconductive belt.  The length of each photoconductive belt is the same.  Vacuum tensioning means is employed with each belt to provide preset belt lengths between exposure and transfer stations for each processing unit.  A flying spot type exposure system is used with laser light source and optical means to simultaneously project independent image exposure beams to the exposure stations of the several processing units.
Patent CA-1126818-A (CA)
Inventor: OHKUBO HIROYUKI
IPC: G01R33/09
Filed: 1979-03-23
Granted: 1982-06-29
Abstract: APPARATUS FOR SENSING AN EXTERNAL MAGNETIC FIELD               ABSTRACT OF THE DISCLOSURE         Apparatus is provided for sensing an external magnetic field.  This apparatus is comprised of first and second coplanar magnetoresistive elements, each magnetoresistive element having a main current conducting path and also having anisotropic resis-tance as a function of the direction of the resultant magnetic field applied thereto.  First and second equal bias magnetic fields are supplied to the first and second magnetoresistive elements, respectively, these bias magnetic fields being supplied at different angles with respect to their associated magneto-resistive elements.  In one embodiment, the current conducting paths of the magnetoresistive elements are perpendicular to each other, and the respective bias magnetic fields extend in opposite directions, these directions being parallel to one of the main current conducting paths.  In another embodiment, the main current conducting paths of the respective magnetoresistive elements extend in the same direction, and the respective bias magnetic fields are at an angle of, for example ?45° to these main current conducting paths.  The first and second magnetoresistive elements are connected in series with each other, and a d.c. current is supplied to this series connection.  An output signal representing the magnitude of an external magnetic field as supplied to the magnetoresistive elements is derived from the junction formed by the series-connected elements.                             -i-
Patent CA-1133759-A (CA)
Inventor: THEURER JOSEF
IPC: E01B29/06
Filed: 1979-04-19
Granted: 1982-10-19
Abstract: Abstract of the Disclosure A traveling gantry arrangement for receiving, storing and transporting sets of transversely positioned track ties on a vertically adjustable tie carrier frame has a pair of tie-engaging grippers arranged on the frame for power-driven movement transverse to the track into engagement with the respective tie ends.  The tie engaging grippers have support faces of a first width subtending the tie ends, and a pivotal support ledge for each tie end is associated with each tie engaging gripper.  The support ledge has a second width sub-stantially exceeding the first width, the widths being mea-sured transverse to the track.  A pivot extends in the direc-tion of the track for pivotally supporting a respective sup-port ledge for pivoting in a plane transverse to the track, and a drive pivots the support ledge about the pivot in the transverse plane.
Patent CA-1113760-A (CA)
Inventor: DI VITA PIETRO
IPC: G02B6/40
Filed: 1979-04-20
Granted: 1981-12-08
Abstract: Abstract:          A magnetic connector for optical cables comprises a pair of identical connector members of non-ferromagnetic material fitted to the respective cable ends and adapted to be brought together to align the ends of the fibres of the respective cables. Toroidal magnets mounted on the connector member produce mutually assisting magnetic fields parallel to the alignment of the fibre ends, which are covered by ferromagnetic material and so are held firmly together by the fields.  A liquid of suitable refractive index may be interposed between the fibre ends to avoid optical discontinuities.
Patent CA-1132488-A (CA)
Title: Rotating-magnetic-field type anti-blinding  system for screens
Inventor: CAUSTON ROBERT J
IPC: B07B1/00
Filed: 1979-04-27
Granted: 1982-09-28
Abstract: ABSTRACT OF THE DISCLOSURE           A sieving device comprises a sieve with an electrical linear device mounted in spaced apart relation from the mesh of the sieve.  Particles of magnetically susceptible material supplied to the side of the mesh away from the thrust device are caused by the thrust device, when energized to move across the mesh and those which are smaller than the mesh pass through the mesh and towards the thrust device.  Conveniently a plate is disposed between the mesh and the plate.  Particles passing through the mesh then come into contact with the plate and move along it under the influence of the thrust device.
Patent CA-1108459-A (CA)
Inventor: RICHARDSON RAYMOND W
IPC: A01B73/00
Filed: 1979-07-26
Granted: 1981-09-08
Abstract: FOLDING FLEXIBLE UNDERCUTTER PLOW                 ABSTRACT OF THE DISCLOSURE          Apparatus is disclosed for folding an articulated agricultural implement such as a multisection plow in order to facilitate movement of the implement from field to field along avail-able roadways.  Stability in the folded condition and minimization of the number of hydraulic cylin-ders required are achieved through the use of a gravity operated lock arrangement associated with adjacent sections of the foldable wing frame units of the implement.  The number of locks and hydraulic cylinders depends upon the total number of hinged sections used to form the base and wing units of the frame assembly.  The inboard hydraulic cylinders are pivotally connected to respective draft beams on the base unit and each acts directly between such beam and the associated wing unit.  The arms of the hitch are connected to the forward ends of the draft beams, and the arrangement is such that the overturning moment created during folding of a wing unit is opposed by a sufficient equal and opposite force to maintain equilibrium and prevent arching or buckling of the flexible frame sections.  The hitch arms con-verge at a special nose provided with a tongue connec-tor that is continuously adjustable over a wide elevational range to accommodate various tractor drawbar heights.  Each gang of a multiple gang (Docket 340) treader behind the plow runs askew and is provided with a gang check to limit forward swinging movement and thereby prevent the treader wheels of adjacent gangs from engaging each other and damaging the wheels when terrain irregularities are encountered.
Patent CA-1108885-A (CA)
Inventor: SCHWARZ HANS
IPC: F16H27/02
Filed: 1979-08-14
Granted: 1981-09-15
Abstract: Abstract Apparatus for rotating a shaft of a turbine is disclosed.  This apparatus includes a ratchet wheel which is connected to the shaft, and a pawl which engages the teeth of the ratchet wheel.  The teeth of the ratchet wheel have bearing surfaces with convex curvatures, while the pawl has a contact surface which also has a convex curvature.
Patent CA-1139918-A (CA)
Title: Method and apparatus for assemblying tubular sleeve preforms and containers
Inventor: AMBERG STEPHEN W
IPC: B29C61/02
Filed: 1979-08-21
Granted: 1983-01-25
Abstract: METHOD AND APPARATUS FOR ASSEMBLYING TUBULAR SLEEVE PREFORMS AND CONTAINERS ABSTRACT OF THE INVENTION This invention relates to method and apparatus fox producing a composite container having a neck label or tubular sleeve mounted temporarily thereon adapted to be shrunken into final surface covering position. The tubular sleeve is preformed of relatively-stiff material and flat-folded until ready for use when it is partially opened and conveyed into axial registry with a container therebeneath. The sleeve preform of heat-shrinkable plastic material is telescopically assembled onto the container while the latter is firmly retained at an upper region. The retention device for the container serves to both fully open the sleeve preform and align the preform and container into axial arrangement. A reciprocatable head contacts the preform while so retained and telescopes the preform at least partially over the container. After the retention device releases the container, a second reciprocatable head contacts the preform to more fully telescope the preform over the container to a finally-aligned position where it is then adapted to subsequent heat-shrinking in place in permanent conforming arrangement.
Patent CA-1126488-A (CA)
Inventor: HECKETHORN JOHN E
IPC: F16L33/06
Filed: 1979-09-05
Granted: 1982-06-29
Abstract: ABSTRACT OF THE DISCLOSURE       There is described a clamp, comprising a substantially rigid discontinuous arcuate ring including a substantially straight leg portion extending tangentially from one end of the ring member.  A lug member is disposed between the ends of the ring member.  The second end of the ring member is fixedly joined to the lug member.  The inner circumferential surfaces of the ring member form a continuous circular arc with arcuate surfaces formed in the lug member.  The arcuate surfaces of the lug member define a continuous arc extending between the second end of the ring member and an intermediate portion of the ring member such that the continuous arc thusly defined forms an uninterrupted continuation of the arc defined by the ring.  The lug member further includes a housing which receives the leg portion of the ring therethrough.  A tensioner is provided on the far end of the leg for tensioning the ring member so as to reduce the diameter of the clamp.
Patent CA-1117564-A (CA)
Inventor: OSTERGREN WILLIAM F
IPC: A01C3/06
Filed: 1979-10-29
Granted: 1982-02-02
Abstract: ABSTRACT OF THE DISCLOSURE A novel drive system for a manure spreader is disclosed herein an infinitely adjustable variable speed drive mechanism transfers power from the power  input  shaft to the apron assembly and a constant speed drive mechanism transfers power from the same power  input  shaft to the beater assembly.  A bypass mechanism allows for an extension of the hydraulic cylinder controlling a cam device, used for varying the speed of the apron drive mechanism without activation of the cam device when the power  input  shaft  is not engaged for rotation of the drive system.  A tensioning idler connected to the cam device through a lost motion linkage provides for disengagement of the beater drive system during the cleanout of the manure spreader by the apron assembly.  A drive shaft to the beater assembly is included inside of a tubular drive shaft to the apron assembly, whereby a concentric drive line assembly transfers power rearwardly to the driven assemblies.
Patent CA-1124408-A (CA)
Title: Method of producing a metal-semiconductor  field-effect transistor
Inventor: CROSSLEY PETER A
IPC: H01L21/32
Filed: 1979-12-03
Granted: 1982-05-25
Abstract: Abstract A metal-semiconductor field-effect transistor is formed by pro-viding a blanket layer of the same conductivity type as the semiconductor body, with field oxide subsequently being grown, and with a region of opposite conductivity type being formed to extend partially under the field oxide, the initial blanket layer acting as the field implant region of the field-effect transistor.
Patent CA-1137607-A (CA)
Inventor: KOUCHICH ALLAN V
IPC: H01C1/034
Filed: 1979-12-21
Granted: 1982-12-14
Abstract: PACKAGED ELECTRONIC COMPONENT                  Abstract of the Disclosure A packaged electronic component includes an insulating body completely enclosing the electronic component except for runner-like blade leads which extend outwardly from the insulating body.  The runner-like blade leads are more dur-able than conventional shaped leads and facilitate the making and breaking of sliding electrical contact with stationary contacts.  A component with these leads is mounted on a carrier which can be moved into and out of con-tact with stationary contacts to complete or interrupt an electrical circuit.  A method of preparing the novel, pack-aged electronic component is also disclosed.
Patent CA-1119362-A (CA)
Inventor: GUPTA INDRA
IPC: C21D8/02
Filed: 1980-02-04
Granted: 1982-03-09
Abstract: ABSTRACT         A cold rolled steel strip is provided with a relatively high yield strength together with good resistance spot weldability, while avoiding rolling problems during its manufacture.  This is accomplished by adding, to plain carbon steel, phosphorus in an amount greater than 0.04 wt.% up to 0.15 wt.% and 0.04-0.14 wt.% titanium.
Patent CA-1130934-A (CA)
Inventor: WEIR DONALD R
IPC: C22B19/20
Filed: 1980-02-08
Granted: 1982-08-31
Abstract: ABSTRACT OF THE DISCLOSURE           A process for the recovery of copper and zinc values from copper and zinc containing sulphidic ore in-cludes subjecting ground ore to a flotation operation.  An initial copper concentrate is floated in a first flotation step, and the initial copper concentrate is fed to a second flotation step to float a relatively zinc free copper con-centrate.  Remaining ore from the first flotation step is fed to a third flotation step to float an initial zinc concen-trate, and remaining ore from the third flotation step is fed to a fourth flotation step to float a copper and zinc containing material.  An intermediate concentrate containing from about 5 to bout 25% copper and from about 2 to about 25% zinc, with a total of at least about 12% copper and zinc, is produced by selecting at least the remaining ore from the second flotation step, and a zinc concentrate containing at least about 20% zinc is produced by at least selecting a portion of the initial zinc concentrate.
Patent CA-1137272-A (CA)
Inventor: GAULE GERHART K
IPC: B22D11/04
Filed: 1980-03-19
Granted: 1982-12-14
Abstract: ABSTRACT OF THE DISCLOSURE      A duplex impedance shield is disclosed which is used to effect improved shape control in the electromagnetic casting of molten metal or alloy.  The shield is provided with a primary loop which substantially surrounds the upper portion of an electromagnetic casting station and a secondary loop attached thereto which serves to enlarge the air gap enclosed by the shield thereby increasing the impedance of the shield.     The secondary loop of the shield may be provided with shunt means which can be manipulated to vary the inductance and/or the resistance of the shield thereby varying the impedance of the shield.
Patent CA-1100556-A (CA)
Inventor: HAKES GARY A
IPC: B60W10/20
Filed: 1980-05-26
Granted: 1981-05-05
Abstract: VEHICLE STEERING BRAKE AND CLUTCH CONTROL                      A B S T R A C T         A crawler tractor vehicle having steering clutches and associated steering brake includes a control apparatus for each clutch and brake system, including a valve made up of a valve body, and a clutch valving spool and a brake valving spool movably associated therewith.  In one embodiment, the clutch valving spool and brake valving spool are identical in configuration, and are disposed in a common bore.  Actua-tor means are associated with such clutch valving spool and brake valving spool, in one embodiment including an actuator assembly made up of a plurality of plungers movable relative to each other and relative to the valve body to provide particular movement of the clutch and brake valving spools.          In another embodiment, the actuator means comprise mechanical linkage means, for providing movement of brake and clutch valving spools positioned in respective separate bores de-fined by the valve body.