baber/WOPTO huggingface dataset:
Patent CA-1096278-A (CA)
Inventor: WARREN PETER C
IPC: G11B23/50
Filed: 1978-02-13
Granted: 1981-02-24
Abstract: WEAR RESISTANT ALPHA ALUMINA ARTICLE          Abstract of the Disclosure A fracture resistant wearing edge is provided on unicrystalline alpha alumina material by the intersec-tion of planar surfaces which are parallel to m-planes of the unicrystalline alpha alumina. Such planar surfaces intersect at an angle of 60° or 120° and the intersection of such surfaces is an edge substantially parallel to the C-axis of the unicrystalline alpha alumina material.
Patent CA-1116068-A (CA)
Title: Composition board with improved polymeric skin  and method of preparing same
Inventor: DEGENS ALFREDO
IPC: B32B21/06
Filed: 1978-02-14
Granted: 1982-01-12
Abstract: ABSTRACT OF THE DISCLOSURE          A process for preparing a flexible, cured sheet mate-rial, the sheet material so prepared, and in particular composi-tion boards with the sheet material as a surface covering, which process comprises   providing a first thin fibrous sheet mate-rial impregnated with a curable thermosetting resin; placing on-to one surface of the first sheet material a second flexible fi-brous sheet material which is capable of absorbing an adhesive material, and subjecting the first and second sheet materials to a high pressure of over about 20 kilos per centimeter square at a thermosetting resin-curing temperature, and for a period of time to bond the surface of the second sheet material to the con-tacting surface of the first sheet material by the cured resin.          The thin sheet material is characterized by a hard, resin-cured surface and capable of absorbing an adhesive material.  The sheet is bonded by contact pressure to a composition board surface with an adhesive layer thereon, which adhesive layer is absorbed into the sheet material.
Patent CA-1068504-A (CA)
Inventor: WAITE RICHARD G
IPC: C14C15/00
Filed: 1978-05-30
Granted: 1979-12-25
Abstract: ABSTRACT         An improved hide processing machine has a hide-treating drum supported for rotation about a central longi-tudinal axis to retain and tumble hides and treating fluids at a closed end of the drum.  The drum includes helical par-tition means extending across the interior of the drum and spirally along the drum axis from its closed end toward its open end, thereby dividing the drum into at least two longi-tudinally-extending spiral compartments.  The partition means prevents movement of hides from one such compartment to an-other during rotation of the drum, and includes fluid-trans-mitting openings for free movement of treating fluid between such compartments.  The helical partition means can provide a conveying force for retaining or discharging such hides when the drum is rotated in an appropriate direction.
Patent CA-1113934-A (CA)
Title: Process for the manufacture of  piperazinopyrrolobenzodiazepines
Inventor: WASLEY JAN W F
IPC: C07D209/48
Filed: 1978-10-03
Granted: 1981-12-08
Abstract: Abstract of the Disclosure The invention concerns the manufacture of new 1,3,4,14b-tetrahydro-2H,1OH-pyrazino[1,2-alpyrrolo[2,1-c [1,4lbenzodlazeplnes of the formula             (I) wherein each of R1, R3 and R4 is hydrogen or lower alkyl; R2 is hydrogen, lower or higher alkyl, lower alkenyl, lower alkynyl, or (3 to 7 ring-membered cycloalkyl, hydroxy, carboxy, lower carbalkoxy, carbamoyl, HPh, lower alkanoyl or HPhCO)-lower alkyl; Ph is 1,2-phenylene, unsubstituted or substituted by up to two members selected from lower alkyl, lower alkoxy, halogeno and trifluormethyl; CnH2n is lower alkylene separating both nitrogen atoms by 2 or 3 carbon atoms and R5 is hydrogen, lower alkyl, lower carb-alkoxy or hydroxy-lower alkyl; the lower alkoxycarbonyl, lower or higher alkanoyl, adamantoyl, carbamoyl, or HPhCO-derivatives; the 2-N oxide, 2-lower alkyl or 2-HPh-lower alkyl quaternaries of a compound in which R2 is different from hydrogen; and acid addition salts thereof, which exhibit antidepressant, analgesic and antihistaminic properties.
Patent CA-1113358-A (CA)
Inventor: SENGER GERHARD F
IPC: B60C15/024
Filed: 1978-10-10
Granted: 1981-12-01
Abstract: PNEUMATIC TIRE AND WHEEL RIM ASSEMBLY AND TIRE FOR             USE THEREIN                  ABSTRACT OF THE DISCLOSURE A tire and wheel rim assembly including a conven-tional flanged wheel rim and a tire having beads configured to minimize abrasion between the beads and the rim flanges.       The axially outboard surface of each bead of the tire is subdivided into a rim flange engaging surface and a free surface.  The rim flange engaging surface of each bead is complimentary to the axially inboard surface of the assoc-iated rim flange, and the tire is constructed and arranged to maintain the rim flange engaging surface of each bead in contact with the associated rim flange during normal opera-tion of the assembly.  Each free surface, which lies radially outwardly of the associated rim flange engaging surface, diverges axially inwardly from that portion of the associated rim flange which overlies it.  The extent of this divergence is sufficient to prevent contact between the free surface of the bead and the associated rim flange during normal operation of the assembly. This abstract is not intended as a complete exposition of the present invention, and should not be construed as limiting the present invention in any way.
Patent CA-1108675-A (CA)
Inventor: GUNDLACH HARRY C W
IPC: H01H33/664
Filed: 1978-11-07
Granted: 1981-09-08
Abstract: ABSTRACT                 A high tension vacuum switch, comprising two relatively axially movable switching contacts and two annular shielding electrodes, of which each one is associated and elec-trically coupled with a respective one of said switching con-tacts and projects slightly beyond the contact surface of said contact in the direction towards the other switching contact.          At least one of the shielding electrodes is capacitively coupled with its respective switching contact so as to add the advantage of much smaller overall dimensions for a switch of this kind.          At least one of the switching contacts is supported by a contact rod and between said contact rod and the respective shielding electrode, radially seen, a layer of insulating material is provided, for example in the form of a piece of tubing which extends over at least a portion of the shielding electrode to support the latter.          In a specific embodiment of the invention, a cylinder capacitor is provided which is constituted by an outer electrode formed by at least a portion of the shielding electrode, a cylindrical inner electrode galvanically connected with the respective switching contact and the piece of tubing of insulating material interposed between said electrodes. The shielding electrode may be a body of woven wire or metalized threads so as to enable metal particles torn loose from a switching contact by an arc to mainly pass through unhindered.A further advantage is that such a shielding electrode may be located at a relatively small distance from its switching contact, which in turn leads to a construction in which the two shielding electrodes are so formed and of such dimensions as to ensure that in the closed condition of the switch one electrode surrounds the other one with clearance. Such a measure not only provides the possibility of realising a switch of relatively small dimensions but also the possibility of simplifying the driving mechanism so as to adapt the latter one to actuation only of a switch embodiment in which one switching contact is a fixed contact and is pro-vided with a fixed shielding electrode and the other switching contact is a movable contact and carries a shielding electrode adapted to be moved along therewith.                             - 1a -
Patent CA-1057338-A (CA)
Inventor: STEDMAN ROBERT N
IPC: B60P1/16
Filed: 1978-12-19
Granted: 1979-06-26
Abstract: ABSTRACT A truck comprises a generally U-shaped frame and a dump body pivot-ally mounted forwardly on the frame and supported on a pair of laterally spaced and parallel side beams thereof.  The dump body comprises four triangularly-shaped bottom wall portions converging downwardly to form an inverse pyramidal construction.  A double-acting hydraulic cylinder is pivotally interconnected between the frame and dump body to selectively raise the dump body to discharge materials forwardly of the truck.  An operator's cab is mounted on a forward end of one of the side beams.
Patent CA-1141459-A (CA)
Inventor: TATEMATSU KENZOU
IPC: H04N1/415
Filed: 1979-01-30
Granted: 1983-02-15
Abstract: ABSTRACT OF THE DISCLOSURE     A facsimile bandwidth compression method using a facsimile signal comprising a synchronizing signal part, a control signal part having digital signals made by coding signals of existence or non-existence of substantial picture information in blocks which are made by dividing the picture information signal into a specified uniform length segment, and a picture information part consisting of picture information signal of the blocks containing at least one black picture element;  A reference signal having an inverted carrier phase from that of the synchronizing signal part is inserted between the synchronizing signal part and the control part.  The coding of the digital signal is made by inverting the carrier phase.  Guard bands having specified levels are inserted between the blocks, thereby assuring more accurate and fine synchronization than the known WBS          (white block skipping) art, and hence, a very clear reproduced picture.
Patent CA-1118707-A (CA)
Inventor: BRUCKERT WALTER
IPC: F28C3/08
Filed: 1979-02-16
Granted: 1982-02-23
Abstract: VAPOR-LIQUID CONTACTING TRAY    WITH VAPOR THRUST MEANS     Abstract of the Disclosure A vapor-liquid contacting tray is disclosed having an enclosure member overlying and extending trans-versely across the tray deck top surface from a portion above a tray support ring to an adjacent perfor-ated portion of the tray deck wherein the perforation openings are unobstructed by the support ring.  A vapor flow opening is located in  the enclosure member over the portion of the tray deck above the support ring.  Vapor flowing into the enclosure member from the overlaid tray deck perforation op-enings  is directed through the vapor flow opening into the liquid on the tray deck surface portion overlying the support ring, to effect vapor-liquid contacting and prevent liquid flow stagnation thereon.     S P E C I F I C A T I O N
Patent CA-1098355-A (CA)
Inventor: JACOBSON CARL C
IPC: B28D1/18
Filed: 1979-04-10
Granted: 1981-03-31
Abstract: ABSTRACT OF THE DISCLOSURE        A machine for opening the joints and random cracks in pavement preparatory to placement of a filler-sealer material therein.  The machine includes an open carriage having an opposed pair of side wheels and a shroud mounted in the carriage intermediate the side wheels.  A cutter wheel is journaled in the shroud for rotation about a horizontal axis, and the cutter wheel is driven by an engine mounted atop the shroud. The shroud is pivotably coupled to the carriage for raising and lowering of the cutter wheel by moving the axis of the cutter wheel in an arc which passes through the axis of the carriage wheels.
Patent CA-1110967-A (CA)
Inventor: DAVIS CARL A
IPC: E21B29/00
Filed: 1979-05-15
Granted: 1981-10-20
Abstract: Abstract of the Disclosure A cementing/plug drilling apparatus consists of a flat plate slightly less in maximum diameter than the pipe in which it will pass having at least one protrusion or tooth on both faces, the tooth being strong enough and sharp enough to engage, dent and penetrate a cement surface and a pump down wipe plug and, the plate having an opening on each face in fluid communication with each other through a fluid passage.  An improved process of ce-menting and drilling through a pump down wipe plug comprises placing a plate having teeth on both faces between a pump down wipe plug and the surface that the bottom of the plug contacts during the cementing process, so that when the drill bit contacts the plug the teeth on the top of the plate engage and hold the plug and the teeth on the bottom of the plate engage and hold the surface on which they are in contact, thereby retarding the tendency of the plug to slide over the surface below it and enhancing the drill-ing action of the drill bit.
Patent CA-1134078-A (CA)
Inventor: TILLIE ETIENNE
IPC: E01H12/00
Filed: 1979-05-25
Granted: 1982-10-19
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to a method of treating in particular polluting materials such as hydrocarbons. Said materials are processed with at least one basic product such as hydraulic, natural organic or synthetic binder and in particular the calcium sulphate semi-hydrates showing qualities required for a quick setting, hardening, sequestration and retention. More particularly, the basic products used are calcium sulphate semi-hydrates in the form ALPHA. Said basic products may be also used for processing of residual sludges or waste waters.
Patent CA-1097127-A (CA)
Title: Plow
Inventor: VANNATTA TERRY L
IPC: A01B15/04
Filed: 1979-06-19
Granted: 1981-03-10
Abstract: PLOW               Abstract of the Disclosure In a plow, a share having a thickened rearwardly extending mid-section with narrow upper and lower edge portions.  The thicker mid-section provides increased share strength and resis-tance to breakage to improve expected share life.  The upper edge portion of the share abuts the moldboard and is provided with a cross sectional thickness consistent with the cross sectional thickness of the moldboard to assure a continuously concave soil working surface over the share and onto the moldboard.  The frog support is provided with a flat share supporting surface to reduce frog forming expense and a concave moldboard receiving surface to assure that the moldboard assumes the proper soil working surface when mounted.
Patent CA-1114209-A (CA)
Title: Orientation of momentum stabilized vehicles
Inventor: HUBERT CARL H
IPC: B64G1/28
Filed: 1979-07-25
Granted: 1981-12-15
Abstract: ABSTRACT OF THE DISCLOSURE         A preselected axis other than the axis of maximum moment of inertia of a momentum stabilized spacecraft is oriented for alignment with the total angular momentum vector of the spacecraft by rotating one or more rotors to a critical rate of rotation.  The rotation of the rotor or rotors is maintained at the critical rate to effect the desired rotation.  The axis of the rotor or the effective angular momentum vector of the resultant momentum of a plurality of rotors is aligned with the axis of the desired spacecraft orientation.  Energy dissipation assures stability by dissipating energy on the spacecraft body at a faster rate of dissipation than the rate of energy dissipation on the rotor.
Patent CA-1128401-A (CA)
Inventor: RABITSCH HERMANN
IPC: C11D3/06
Filed: 1979-10-02
Granted: 1982-07-27
Abstract: cC.1034 Abstract of the Disclosure Particulate fabric washing detergent compositions are made with mixed phosphate detergency builders which comprise at least 5% of discrete particles of a water-soluble alkali metal polymer phosphate and at least 2% of an alkali metal orthophosphate in the ratio of 10:1 to 1:5 parts by weight, the total amount of these phosphates being from 10% to 40% of the composition and not more than 10% of other  phosphate builders being present.   The compositions are conveniently made by spray-drying a base powder and then admixing the polymer phosphate in discrete particle form with the base powder.
Patent CA-1130424-A (CA)
Inventor: SATAKE TOSHIHIKO
IPC: B02B3/04
Filed: 1979-10-12
Granted: 1982-08-24
Abstract: ABSTRACT OF THE DISCLOSURE         An automatic safety device for a hulling machine comprising a housing, a fixed hulling roll and a movable hulling roll forming a pair rotatably mounted parallel to each other in the housing, means for driving the two hulling rolls and means for forcing the movable hulling roll to move toward the fixed hulling roll.          Each hulling roll has fitted thereover a metallic annu-lar member and a resilient annular member in the indicat-ed order.  The automatic safety device includes detecting means for detecting that at least one of the resilient annular members of the hulling rolls has reached a predetermined wear limit radius, and a safety control electric circuit connected to said detecting means and including warning means and/or means for interrupting the operation of the means for driving the hulling rolls.
Patent CA-1134051-A (CA)
Inventor: GRONDALSKI DAVID S
IPC: G06F9/28
Filed: 1979-11-05
Granted: 1982-10-19
Abstract: ABSTRACT        Therein is disclosed high speed digital computer system architecture.  System architecture includes a processor for processing machine language digital data and a memory for storing at least machine language instructions for use by the processor.          Instructions or data are transmitted between memory and processor by memory input and output busses.  Signals are transmitted between computer system and external devices by I/O apparatus.          Instruction pre-fetch circuitry is disclosed for fetching from memory, and storing, instructions in advance of instructions being executed by the processor.  Also disclosed are a high speed memory and memory input and output busses providing high memory bus bandwidth and simple memory bus interface circuitry.          Processor circuitry is disclosed for allowing high speed initiation and execution of instruction sequences.  I/O circuitry is disclosed which allows I/O apparatus to easily adapt to a variety of external devices or to changes in computer machine language or instructions.
Patent CA-1146008-A (CA)
Inventor: LOUDON JAMES R
IPC: B41F3/32
Filed: 1980-01-08
Granted: 1983-05-10
Abstract: ABSTRACT     The present invention is a dampening feed apparatus for offset printing presses.  The apparatus includes a form roller adjacent to the plate cylinder, a solution metering means lying parallel and tangent to the form roller and be-yond the uppermost tangent of the form roller in the direc-tion of rotation, a supply of dampening solution adjacent the metering means and the form roller, and means for automati-cally maintaining the level of the solution supply.  Rotation of the form roller results in a metered quantity of solution being fed to the form roller, a portion of that quantity being applied to the lithographic plate, and the excess of that quantity being returned to the supply, whereby excess solution is prevented from building up adjacent the plate cylinder.
Patent CA-1119264-A (CA)
Inventor: BRADY SHERWIN L
IPC: B63B22/02
Filed: 1980-03-11
Granted: 1982-03-02
Abstract: ABSTRACT OF THE DISCLOSURE         A s1ip ring mounted in a buoy is used to transmit power from a generatlng vessel to an offshore installation.  The vessel is moored to the buoy and the slip ring acts as an electric swivel allowing the vessel to weathervane around the buoy as environmental conditions may require.  The slip ring conducts high voltage three phase power and an open ring stack a11ows circulation of high dielectric insulating oil therethrough.  The insulating oil allows the ring stack to have smaller dimensions than would be possible if an air dielectric were used.  Access ports and viewing windows enable maintenance to be performed on the ring without removing the outer housing.
Patent CA-1132482-A (CA)
Title: Isotope separation by selective dissociation  of trifluoromethane with an infrared laser
Inventor: HARTFORD ALLEN JR
IPC: B01D59/38
Filed: 1980-03-21
Granted: 1982-09-28
Abstract: ABSTRACT           ISOTOPE SEPARATION BY SELECTIVE DISSOCIATION OF TRIFLUORO-METHANE WITH AN INFRARED LASER       High intensity infrared laser radiation of select-ed wavelengths incident on gaseous trifluoromethane causes isotope-selective excitation and dissociation of the tri-fluoromethane.  The product compound or compounds, enriched in the desired isotope, can then be separated from the remainder of the gas.  By this process, for example, infra-red radiation of gaseous  trifluoromethane using a CO2 laser provides enrichment and separation of deuterated compounds which are useful in certain types of commercial nuclear reactors.
Patent CA-1136427-A (CA)
Inventor: ST PIERRE PHILIPPE D
IPC: C22B23/06
Filed: 1980-03-28
Granted: 1982-11-30
Abstract: ABSTRACT OF THE DISCLOSURE      A shaped confined mass of diamond and/or cubic boron nitride crystals coated with elemental non-diamond carbon, under a partial vacuum, is infiltrated by fluid silicon producing a like-shaped product wherein the crystals are bonded together by a medium comprised of silicone carbide and elemental silicone.
Patent CA-1155168-A (CA)
Inventor: MARKHAM ROGER G
IPC: B41J2/02
Filed: 1980-04-18
Granted: 1983-10-11
Abstract: ABSTRACT OF THE DISCLOSURE A thin film of polyvinylidene fluoride is operated in the piezoelectric thickness mode to stimulate fluid drop formation for ink jet printing systems.  The film is placed against a rigid wall of either rectangular, cylindrical or spherical chambers having at least one nozzle for emitting a continuous stream of fluid from which the drops are formed.  The frequency of the drop generation is related to the frequency of an AC voltage applied across the piezoelectric film.
Patent CA-1111396-A (CA)
Title: Method and apparatus for surge detection and control in centrifugal gas compressors
Inventor: WATSON THOMAS E
IPC: F04D27/02
Filed: 1980-05-15
Granted: 1981-10-27
Abstract: ABSTRACT OF THE DISCLOSURE         A centrifugal gas compressor having a shrouded rotatable  impeller  14  in  an  impeller  chamber 40,  and provided with capacity control vanes 30 and a diffuser passage  18  throttle  plate  38,  is provided with  surge control means including a thermistor 50 which senses a temperature  rise  beyond  a  predetermined  value  in  the impeller chamber and exterior of the gas flow path through the  impeller,  and  through  relay means  such  as  52,  58 electrically connected to the thermistor 50 operates to change the compressor operation to a nonsurging condition.
Patent CA-1133594-A (CA)
Title: Common-emitter f.sub.t doubler amplifier employing  a feed forward amplifier to reduce non-linearities  and thermal distortion
Inventor: TRAA EINAR O
IPC: H03F3/45
Filed: 1980-07-08
Granted: 1982-10-12
Abstract: Abstract An  improved  common-emitter  cascode fT doubler amplifier is provided with a feed-forward amplifier cir-cuit to compensate for non-linearities and thermal distor-tion. The feed forward amplfier senses distortion at the emitters  of  the  fT  doubler  amplifier  transistors  and injects a correction current into a pair of output nodes.          The amplifier is also provided with a common-base transis-tor output stage.
Patent CA-1108952-A (CA)
Inventor: O'NEILL MARK J
IPC: G02B3/08
Filed: 1980-08-06
Granted: 1981-09-15
Abstract: ABSTRACT OF THE DISCLOSURE      A curved prismatic, Fresnel-type lens primarily used for concentrating sunlight in a solar energy collector.         The lens comprises a substantially smooth, convex outer surface and a plurality of prisms arranged side-by-side along a curve on the inner surface to direct incoming light to a common area.  Each of the individual prisms has a front and back face joined by a bottom face.  The front and back faces of the prisms are oriented such that the angle of incidence of the incoming light with the front face is equal to the angle of incidence of the outgoing light with the back face.  Further, each of the prisms is arranged along the curve such that they do not obstruct light passing through any adjacent prism.  The bottom face of each prism is over-extended beyond the path of the light passing through the prism to prevent loss of light due to blockage by the bottom face or the rounded point between the back face and bottom face.          The improved lens is used in combination with a solar energy collector comprising the improved concentrator and a suitable energy receiver for converting incident sunlight into a useful energy output.