baber/WOPTO huggingface dataset:
Patent CA-1075798-A (CA)
Title: Multiprocessor control of a partitioned switching network by control communication through the network
Inventor: CHRISTENSEN CARL
IPC: H04J3/00
Filed: 1977-05-18
Granted: 1980-04-15
Abstract: Abstract of the Disclosure A centrally located stage of a time division multi-plex switching network is partitioned into blocks and a sepa-rate processor is provided to control each such block.  The partition is extended to the edge of the network by having each partition processor control through the network both the network equipment in adjacent stages directly coupled to the controlled block, and a preassigned portion of the remainder of the network out to the edge thereof which can be reached either through such controlled equipment or through similar equipment of other partitions.  In addition, translating, scanning, and service functions arc advantageously separated out of the partitioned processors and performed by separate pro-cessors that communicate through the call switching network with the partition processors and/or the network-edge ports.
Patent CA-1076692-A (CA)
Inventor: PFEIFFER G WILLIAM
IPC: A61B7/04
Filed: 1977-06-16
Granted: 1980-04-29
Abstract: ABSTRACT           A combination acoustic and electronic stethoscope which can be operated with one hand is disclosed.  The stethoscope has a combination slide valve-electrical switch located in the chesspiece for conversion from an acoustic to an electronic mode of operation.
Patent CA-1093729-A (CA)
IPC: C04B28/02
Filed: 1977-06-17
Granted: 1981-01-13
Abstract: ABSTRACT OF THE DISCLOSURE           This fibre reinforced cementitious composite having improved post-cracking strength comprise an inorganic cementitious matrix having embedded therein a mixture of chopped fibres, one of the fibres being brittle, highly stiff fibre selected from glass, asbestos and mineral fibres, and another of the fibres comprising a tough, flexible fibre selected from polypropylene, polyethylene, polyamide, polyimide and polyester.  The use of such fibre mixtures enables stronger composites to be produced, containing larger total quantities of fibres without experiencing the processing difficulties of requiring very large amounts of water for their preparation.
Patent CA-1090945-A (CA)
Inventor: BLUEMEL HARALD
IPC: C08L23/16
Filed: 1977-12-16
Granted: 1980-12-02
Abstract: Abstract of the Disclosure The invention relates to improved thermoplastic materials and their use for the production of mouldings, particularly web and sheeting, having good strength at elevated temperatures.  These thermoplastic materials consist of (a) 100 parts by weight of a polyolefin rubber; (b) more than 50 but not more than 150 parts by weight of a crystalline or partly crystalline polyolefin; (c) from 30 to 150 parts by weight of a carbon black; (d) from 0 to 50 parts by weight of a bitumen; (e) from 0 to 30 parts by weight of a mineral oil; (f) from 0 to 240 parts by weight of chalk or siliceous chalk; and (g) from 0 to 10 parts by weight of a lubricant.
Patent CA-1108896-A (CA)
Inventor: ENTNER JOSEF
IPC: F16B13/13
Filed: 1977-12-16
Granted: 1981-09-15
Abstract: ABSTRACT OF THE DISCLOSURE     A self-drilling dowel consists of a tubular-shaped member with a drilling head at one end.  The drilling head is formed of a plurality of teeth each having a tip.  The tip of the teeth are all disposed in a single plane inclined at an angle in the range of 4° to 9° to the axis of the tubular-shaped member.  The teeth are formed by a cutter with its center located at an offset position from the axis of the tubular-shaped member.  The feed line of the cutter extending through its centre can be parallel to the axis of the tubular-shaped member or it can be set angularly to the axis of the tubular-shaped member in the range of 4° to 9° or 81° to 86° depending on whether the cutter is moved generally in the axial direction or transversely to the axial direction of the tubular-shaped member.
Patent CA-1101436-A (CA)
Inventor: SEIFERT HERMANN
IPC: C07C39/12
Filed: 1977-12-22
Granted: 1981-05-19
Abstract: Abstract of the Disclosure A process has been invented for the preparation of polyhydric substituted phenols which comprises reacting a solution, which is essentially anhydrous and free from hydrogen peroxide, of a percarboxylic acid in an inert organic solvent with a monohydric substituted phenol, which is derived from benzene, naphthalene or anthracene and still contains at least one free hydrogen atom in the aromatic nucleus, at temperatures from about -20°C to about 120°C.           The polyhydric substituted phenols obtained according to the invention are known, important industrial intermediate products used in the fields of photography, dyestuffs and plastics, as well as in the scent and flavoring areas.
Patent CA-1069817-A (CA)
Title: Low temperature process for separating propane and heavier hydrocarbons from a natural gas stream
Inventor: GULSBY JERRY G
IPC: F25J3/02
Filed: 1978-01-11
Granted: 1980-01-15
Abstract: LOW TEMPERATURE PROCESS FOR SEPARATING PROPANE AND HEAVIER HYDROCARBONS FROM A NATURAL GAS STREAM            ABSTRACT          A process for low temperature fractionation of natural gas to recover as product propane and the heavier hydrocarbons with an efficiency of 90% or greater and an ethane content rejection of 90% or more.  The process in-cludes passage of the natural gas through several refrig-eration zones followed by a first separation stage to separate liquid condensate from C1, C2 and C3 hydrocarbon gas.  The gas stream is cooled further by expansion followed by a second separation stage to separate liquid containing C1, C2 and C3 hydrocarbons from the gas which contains only C1 and C2 hydrocarbons.  Both streams are fed to a de-ethanizer fractionating column, with the liquid entering at a point intermediate the ends and the gas being utilized in a reflux condenser internal to the column above the point of entry of the liquid stream.  Employment of the low tempera-ture C1, C2 hydrocarbon gas in a reflux condenser in the column provides the necessary refrigeration to condense the propane and heavier constituents of the inlet gas and reject the methane and ethane.
Patent CA-1091813-A (CA)
Inventor: BARON WILLIAM J
IPC: C23C18/20
Filed: 1978-01-19
Granted: 1980-12-16
Abstract: A METHOD OF SELECTIVELY DEPOSITING A METAL ON A SURFACE            Abstract of the Disclosure A method is disclosed for selectively depositing a metal on a surface of a substrate capable of retaining thereon a colloidal activating metal for electroless metal deposition.          The method comprises coating a portion of the surface with a copolymer of maleic anhydride and a vinyl monomer, wherein the copolymer coat is selectively incapable of retaining thereon the colloidal activating metal species to delineate an uncoated surface pattern which is capable of retaining the colloidal activating metal species thereon.  The selectively coated surface is treated with a sol comprising the colloidal activating metal species to deposit the metal species only on the uncoated surface pattern.  Subsequently, the colloidal species deposited pattern may be exposed to an electroless metal deposition solution to deposit a metal thereon.  This method can be used in the formation of electrical circuit patterns at relatively low cost.
Patent CA-1102175-A (CA)
Inventor: BUREAU JEAN-YVES
IPC: A47J39/00
Filed: 1978-01-26
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE;           An apparatus for steaming food at substantially atmospheric conditions.  This apparatus comprises a steam chamber; means for filling the chamber with steam, which filling means comprises means for introducing water into the bottom of the steam chamber, and heating means outside the steam chamber for heating the water in the steam chamber to produce steam; means for allowing steam to escape from the chamber to maintain substantially atmospheric conditions in the chamber; a condensing chamber for the escaping steam; means in the condensing chamber for spraying water on the steam to condense it; means for draining the water and condensed steam from the condensing chamber; and means for circulating the steam in the steam chamber.
Patent CA-1105980-A (CA)
Inventor: DIFRANCESCO ALPHONSE B
IPC: G03G15/23
Filed: 1978-02-13
Granted: 1981-07-28
Abstract: APPARATUS FOR PRODUCING COLLATED COPIES         IN PAGE SEQUENTIAL ORDER                 ABSTRACT OF THE DISCLOSURE Apparatus for producing duplex or simplex collated copies from duplex and simplex originals comprising a copier having a duplex section with two transfer stations separated by a copy-sheet inverter.  A document feeding section circulates and recirculates original sheets, one-after-another, for pro-ducing sets of copies in page sequential order.  me document feeder is provided with a single hopper for receiving and maintaining the originals in their usual page sequence or order so that no preparation (i.e., special arrangement) of an original is necessary prior or subsequent to copying for making collated copies.  The duplexing section requires only a single fuser that is positioned so that the copy sheets pass through both transfer stations before entering the fuser, thus permit-ting transfer of images under similar conditions in both transfer stations.
Patent CA-1100880-A (CA)
Inventor: MISSAN RICHARD S
IPC: H04R3/12
Filed: 1978-02-27
Granted: 1981-05-12
Abstract: Abstract A language information system in which a patron in a given location, such as at A play, on a train, or bus  or in a hotel room, is provided with information or a running commentary or summary of an event taking place in a language of his choice.  In a preferred embodiment of the invention, the patron can select any one of a number of languages which are pre-recorded on a magnetic tape.  The starting and stopping of the tape is cued by action taking place during the event.
Patent CA-1089409-A (CA)
Title: Method and apparatus for manufacturing coaxial cable
Inventor: SAITO YASUNORI
IPC: B29C48/13
Filed: 1978-03-02
Granted: 1980-11-11
Abstract: ABSTRACT OF THE DISCLOSURE       In the dual extrusion manufacture of an insulated coaxial cable having one or more spiral spacing rib(s) wrapped around an inner conductor and surrounded by a tubular sheath, the longitudinal contraction of the sheath during cooling and the attendant warp curvature of the rib is avoided by providing a sizing device having a central die portion with vacuum exhaust holes therein.  Water from a cooling pool is drawn in through the clearance space between the sheath and the die portion as the cable passes therethrough to pre-cool and lubricate it, and one or more dies are provided in the cooling pool to prevent the longitudinal contraction of the sheath and thereby avoid any appreciable rib inclination or curvature.
Patent CA-1044371-A (CA)
Inventor: HEUER DALE A
IPC: G11C17/00
Filed: 1978-03-06
Granted: 1978-12-12
Abstract: READ ONLY MEMORY     ABSTRACT An FET read only memory array having bit locations arranged in rows and columns utilizes a dynamic array and static sensing.  A dynamic first address selects the gate line of a selected column and a second address selects the source line or lines to select one or more bits within the selected column.  The presence or absence of a gate at a selected bit location determines whether a first or second logic level is present at the sense or drain line serving the bit location.  An additional column of FET bit positions each with a gate has the gate line activated toward the conclusion of the cycle to provide a path to ground for the elimina-tion of any charge on a sense line in preparation for the next succeeding cycle.  The sensed output from a selected bit location is latched until reset.
Patent CA-1076458-A (CA)
Inventor: REICHE ROBERT F
IPC: B27L1/02
Filed: 1978-04-10
Granted: 1980-04-29
Abstract: Abstract of the Disclosure A material discharge regulating gate, for a ro-tating material processing drum, having a vertical circular member having a diameter larger than the discharge end of the drum, the circular member having a continuous surface with a material discharge opening therein, and means for rotatably mounting the circular member adjoining the dis-charge end of the rotatable drum.          Apparatus comprising a rotatable material pro-cessing cylindrical drum having a substantially horizontal axis and a circular discharge open end, a material discharge regulating gate adjoining the discharge end of the drum, said gate comprising a vertical circular member having a diameter larger than the discharge end of the rotatable drum, the circular member having a continuous surface with a material discharge opening therein, and means for rotatably mounting the circular member adjoining the discharge end of the rotatable drum to rotate independent of the drum.         A method of regulating and controlling material flow or discharge from a rotating drum by positioning a vertical circular member at the discharge end of a rotatable drum, the circular member having a continuous surface with a material discharge opening therein and also having means for rotatably mounting the circular member adjoining the dis-charge end of the rotatable drum, rotating the drum, feeding material to the rotating drum for processing, and after processing discharging the material from the rotating drum with controlled flow by rotating the circular member to position the opening at a stationary location to effect controlled flow material discharge from the rotating drum through the opening in the circular member.
Patent CA-1110445-A (CA)
Inventor: PAGNOZZI VINCENZO
IPC: F26B7/00
Filed: 1978-05-02
Granted: 1981-10-13
Abstract: ABSTRACT OF THE INVENTION     A vacuum drying kiln has a drying chamber in which, in use, is placed timber to be dried and around which is a surrounding water jacket through which is circulated a heat exchange fluid which derives its heat by flowing through the secondary circuit of a heat exchanger through the primary circuit of which is pumped a mixture of air and water vapour drawn by a vacuum pump from the interior of the drying chamber.  The kiln is operated cyclically through successive heating and evacuation phases and the vacuum pump is one utilising a secondary  fluid to effect pumping, the characteristics of this secondary fluid being that it is immiscible with water and has a low specific heat so that it encourages the condensation of the water vapour in the primary circuit of the heat exchanger by undergoing large temperature variations for small changes in heat content.
Patent CA-1087588-A (CA)
Inventor: BAYHAM EDWARD L
IPC: A61J1/00
Filed: 1978-05-24
Granted: 1980-10-14
Abstract: FRANGIBLE RESEALABLE CLOSURE     FOR A FLEXIBLE TUBE HAVING HOLD OPEN MEANS            Inventors:  Edward L. Bayham Ronald A. Williams David W. Ammann ABSTRACT OF THE DISCLOSURE        Valve means in a flexible tube, for example, tubing for connecting blood bags, are provided, which comprises a tubular portion having a closed end, and an elongated, generally rigid member, carried on the exterior of the closed end and positioned within the flexible tube.  Frangible means are provided to permit the opening of the closed end by manual manipulation of the elongated member from outside of the flexible tube.  The elongated, rigid member is adapted to fit in sealing relationship within the tubular portion after opening of the closed end, to permit resealing of the valve.  The elongated, generally rigid member carries longitudinal veins to provide flow channels along its length.  In accordance with this invention, a pair of said veins in opposed relationship extends rearwardly of the end of the central portion of the rigid member, and the flexible tube defines a bore portion position to receive and resiliently hold the proposed veins when the frangible means is broken and the rigid member is separated from the tubular portion.  This prevents accidental reclosing of the valve means by the rigid member moving to obstruct the tubular portion.
Patent CA-1107459-A (CA)
Inventor: LINDEN HEINRICH
IPC: C09D17/00
Filed: 1978-06-21
Granted: 1981-08-25
Abstract: K-5593  CWS: iws ABSTRACT OF THE DISCLOSURE     A process for improving the dispersibility of inorganic pigments and fillers which comprises contacting said pigments and fillers with esters of aliphatic carboxylic acids having 4 to 22 carbon atoms with tertiary alkylolamines and recovering a highly dispersible pigment or filler.
Patent CA-1133605-A (CA)
Inventor: MALINOWSKI WILLIAM J
IPC: G08B17/10
Filed: 1978-07-12
Granted: 1982-10-12
Abstract: ABSTRACT         A smoke detector of the type utilizing a pulsing light source and photo-responsive means producing an output signal in response to the receipt of a pulse of light from said source reflected from smoke particles and means for amplifying said output signal to produce an alarm signal, which has exceptional low current drain so as to be adapted for being powered by a battery, and exceptional immunity to false alarms even when operated at a high sensitivity.  On each pulse, the amplifier is energized and allowed to achieve a stabilized condition, prior to energizing the light source, and after the light source is energized, the amplified output signal is not allowed to create an alarm signal until the circuit has again stabilized from transients caused by the energizing of the light, thereby preventing false alarms from circuit transient resulting from internal and external causes.  The circuit operation is controlled by a master clock which provides a slow pulse rate during stand-by operation and an increased pulse rate when an alarm signal is produced in response to the presence of smoke.  The clock also causes the alarm to be energized by pulses, which pro-vides a more attention-getting alarm signal than does a continuous alarm, and conserves the strength of the battery.
Patent CA-1127361-A (CA)
Inventor: GRUNNER ERICH
IPC: B29L30/00
Filed: 1978-07-14
Granted: 1982-07-13
Abstract: ABSTRACT OF THE DISCLOSURE:     Apparatus for casting and/or moulding vehicle tyres, more particularly motor vehicle tyres, having a multi-part mould whose cavity, determining the shape of the tyre to be produced, is bounded; from inside by a divided core; from outside by a top member and a bottom member.  The latter are partially axially movable and co-operate to define the bead and side wall area of the tyre.  There is a member which is sub-divided into segments and which member moulds the tread area, of the tyre, the segments being attached to segment carriers which are displaceable radially in relation to the core area pivotable toward and away from it.
Patent CA-1122536-A (CA)
Inventor: MARKLEY FINLEY W
IPC: B01D63/14
Filed: 1978-08-08
Granted: 1982-04-27
Abstract: ABSTRACT OF THE DISCLOSURE     The present invention relates to an improved design for a hemodialyzer which provides for increased contact between the blood and the dialysate fluid across the semipermeable mem-brane by increasing the blood flow path in the dialyzer unit, while at the same time increasing the blood velocity through the unit to prevent buildup of fibrin on the semipermeable membrane surfaces.  The hemodialyzer of the present invention includes two independent stacks of parallel flattened semi-permeable membrane tubes disposed within a dialyzer casing.  The dialysate fluid flows through the casing within the interior of the flattened tubes, while the blood flows through the casing around and between the semipermeable membrane tubes, the two independent stacks of the tubes being arranged within the casing such that the blood passes through each of the two independent stacks in succession.
Patent CA-1086294-A (CA)
Inventor: FROMMHERZ EGON
IPC: B66D1/74
Filed: 1978-08-30
Granted: 1980-09-23
Abstract: Abstract of the Disclosure A continuous winch with two wheels of which at least one is driven and in case of a multi-groove design is provided with a run-off groove for the non-loaded cable section, while the unloaded run-off cable section in the run-off groove is adapted to be clamped or guyed transverse to the running off direction.  The run-off groove is on one side confined by a clamping wheel which is spring loaded in clamping direction substantially merely on that semi-arc which is looped around by the running-off cable.
Patent CA-1091905-A (CA)
Title: Coil forming assembly for pile extruding machines and  the like
Inventor: MARTENS ERNST
IPC: B28B3/22
Filed: 1978-10-12
Granted: 1980-12-23
Abstract: COIL FORMING ASSEMBLY FOR PILE EXTRUDING MACHINES AND THE LIKE ABSTRACT OF THE DISCLOSURE     A die assembly forms links of coil reinforcing around a coil support tube and the die assembly can be adjusted so that both the pitch and diameter of the lengths of coil can be adjusted.  A strand of wire extends downwardly through a die aperture and through cut out portions within the outer shell of the die assembly and a source of power forces the wire through the die assembly and into the form of the coils required.
Patent CA-1113686-A (CA)
Inventor: ANGLEROT DIDIER
IPC: C23C16/24
Filed: 1978-10-30
Granted: 1981-12-08
Abstract: L'invention concerne un procédé de fabrication de silicium polycristallin en couche mince. Le procédé de l'invention consiste à réduire un composé de silicium à l'état gazeux par le zinc à l'état liquide en présence d'au moins un métal à l'état liquide choisi dans le groupe que constituent l'étain, le plomb, l'or, l'argent, l'antimoine et le bismuth, les conditions opératoires étant choisies telles que le composé du sino formé lors de la réaction soit à l'état gazeux.  Le silicium obtenu par ce procédé trouve son application notamment à la conversion photovoltalque.
Patent CA-1163505-A (CA)
Inventor: DASHEW STANLEY A
IPC: B63H11/113
Filed: 1978-10-31
Granted: 1984-03-13
Abstract: ABSTRACT OF THE DISCLOSURE An improved boat thruster including a diverter valve having an inlet connected to a water pump and a pair of outlets extending to either side of the boat.  Each outlet includes a primary nozzle and a deflector movable to a first position wherein it allows water flow from the primary nozzle to be dis-charged to one side to thus thrust the boat to the opposite side.  Each deflector is also movable to second and third posi-tions for directing the primary nozzle water flow to respective secondary nozzles for discharging the water either forwardly or rearwardly to thus thrust the boat in the opposite direction.          The secondary nozzles each have an exit area smaller than that of the primary nozzle.
Patent CA-1084454-A (CA)
Title: Mechanism for transfer of wheelchair confined passengers to and from railway coaches at railway station platforms
Inventor: KINGSTON JOHN C
IPC: A61G3/06
Filed: 1978-10-31
Granted: 1980-08-26
Abstract: ABSTRACT OF THE DISCLOSURE           This invention relates to a novel railway coach loading and detraining apparatus for use by wheelchair confined passengers.  One embodiment of the invention makes provision for the loading and detraining of passengers over the stairwell in the vestibule of existing coaches.  A horizontal loading platform is pivotally connected to a pair of spaced apart and opposed linkage means positioned on either side thereof and which are in turn connected to the coach.  Each linkage means comprises three linkage sections which are so arranged as to define two co-operating parallelograms having one common side which is parallel to the loading platform.  Motive means is utilized in raising and lowering the loading platform over the stairs between the coach vestibule and a railway station platform.