baber/WOPTO huggingface dataset:
Patent CA-1082878-A (CA)
Inventor: HUDSON JOHN W
IPC: C01B21/097
Filed: 1976-06-23
Granted: 1980-08-05
Abstract: PROCESS FOR PREPARING HIGH CYCLIC      PHOSPHONITRILIC HALIDES                 Abstract of the Disclosure Preparation of high cyclic phosphonitrilic halide, preferably chloride, oligomer mixtures by reaction of phosphorus trichloride, chlorine and ammonia at temperatures from 65 to 180°C in which the reactants are simultaneously fed to an agitated inert solvent at a rate such that the phosphorus trichloride concentration is at most stoichiometric relative to the chlorine and ammonia concentration and such that petroleum ether insoluble phosphonitrilic chloride formation is suppressed, and recovering the cyclic phosphonitrilic halide oligomer mixture without extracting petroleum ether insoluble materials since these are not produced.
Patent CA-1061406-A (CA)
Inventor: VUKASOVIC LOVRO
IPC: H02M7/521
Filed: 1976-09-17
Granted: 1979-08-28
Abstract: ABSTRACT OF THE DISCLOSURE A parallel resonant circuit frequency converter, in which, through the resonant circuit voltage picked up by a voltage sensor and the inverter output current picked up by a current sensor, a firing instant for the inverter thyristors is determined prior to every zero crossing of the resonant circuit voltage by means of an evaluating circuit, taking into consideration the commutation and the protection time.  To detect commutation short circuits, the currents of bridge arms with a common d-c terminal are measured by the current sensor and added up to an a-c current.  The current sensor and the voltage sensor are followed by a monitoring device which releases a pulse if between one of the firing instants and the correspond-ing zero crossing of the resonant circuit voltage the inverter output current and the resonant circuit voltage remain in phase or are in phase opposition after the zero crossing.
Patent CA-1084966-A (CA)
Inventor: ENGELBERGER JOSEPH F
IPC: G05B19/42
Filed: 1976-10-28
Granted: 1980-09-02
Abstract: Abstract of the Disclosure A programmable automatic assembly system is provided which may be employed to assemble small parts.  Each assembly station includes cooperating manipulator arms which are program-mable to assemble parts on a centrally located work table. Improved facilities are provided for teaching the manipulator arms at each station, these facilities including a computer, which assista the teaching operator in setting up the programs required for assembly of small parts to close tolerances.  Each manipulator arm includes closed loop teach facilities for main-taining the arm at a previously located position during the teaching mode of operation.  The computer is employed as a teach assist facility in performing a number of tasks during the teaching operation which are extremely difficult for the operator to perform manually.  All of the assembly stations may be controlled during playback from a common disc storage facility so that the control circuitry and memory storage facilities at each manipulator are minimized.
Patent CA-1064632-A (CA)
Inventor: JONES RALPH A
IPC: H04M3/56
Filed: 1976-12-15
Granted: 1979-10-16
Abstract: ABSTRACT             A switching circuit comprises an operational amplifier with two resistive negative feedback paths including respective unilateral-ly conducting devices (e.g. diodes) connected in opposite polarity to the output of the amplifier.  A first terminal is connected to the electrode of the unilaterally conducting device in one path remote from the output of the amplifier, and a second terminal is connected to the electrode of the unilaterally conducting device in the other path remote from the output of the amplifier.  Signals of one polarity only applied to the first terminal appear at the second terminal and signals of the opposite polarity only applied to the second terminal appear at the first terminal.  The circuit may include three or more such feedback paths.  The values of the resistors in the feedback paths may be adjusted to charge the transfer gain of the circuit.  The circuit is of particular value in a telephone conference amplifier using unilateralised signals for connecting each channel to a point common to the channels.
Patent CA-1064887-A (CA)
Inventor: HALL SAMUEL S
IPC: F02M27/08
Filed: 1977-01-19
Granted: 1979-10-23
Abstract: ABSTRACT OF THE DISCLOSURE     A device for metering liquids, which device comprises a body, a liquid conduit in the body, vibrations means for vibrating the body, a valve for opening the conduit when the body is being vibrated and for closing the conduit when the body is not being vibrated, and a conduit external of the body and arranged to conduct liquid towards or away from the conduit in the body, the device being such that in operation liquid fed along one of the conduit is metered along the other conduit by activating the vibration means for a desired liquid metering time to cause the valve to open the conduit in the body.
Patent CA-1069688-A (CA)
Inventor: HALL BOBBY E
IPC: C09K8/72
Filed: 1977-03-04
Granted: 1980-01-15
Abstract: ABSTRACT OF THE DISCLOSURE      A method for dissolving clay is disclosed which comprises contacting the clay, in alternation, with separate slugs of a hydrogen ion-containing chemical and a fluoride ion-containing chemical.  The hydrogen ions and fluoride ions react on the surface of the clay to produce hydrofluoric acid to dissolve the clay. The method is particularly valuable in dissolving the clay in a mixture of sand and clay without dissolving the sand. This finds immediate value in the practice of acid treating subterranean sandstone formations to increase permeability or to restore permeability damaged by clay.
Patent CA-1090523-A (CA)
Inventor: MOSKOWITZ DAVID
IPC: C22C29/06
Filed: 1977-03-07
Granted: 1980-12-02
Abstract: ABRASION RESISTANT IRON-NICKEL      BONDED TUNGSTEN CARBIDE                   ABSTRACT OF THE DISCLOSURE     Disclosed is a method of making tungsten carbide materials and the resulting product useful for cutting tools and other applications where a high persistance to abrasive wear is required.  WC powder is blended with 0.1 to 1.5 wt% VC and a binder powder, in an amount (3 to 30 wt%) of the blend, the binder consisting essentially of 7.0 to 15 wt% Ni, and the remainder iron.  The carbon content is adjusted to insure substantial absence of eta phase and deleterious amounts of graphite upon sinter-ing.  The blend is screened, pressed into compacts and sintered at a temperature of 1400°C for a period of time of one hour.
Patent CA-1077675-A (CA)
Title: Continuous casting method for the production of rolled low carbon steel products with improved formability
Inventor: BASSETT JAMES G JR
IPC: B22D11/10
Filed: 1977-03-15
Granted: 1980-05-20
Abstract: ABSTRACT OF THE DISCLOSURE         The relatively poor formability and spot weld fracture appearance of hot-rolled and heavy gauge cold-rolled low carbon steels (in which silicon is the primary deoxidant) have been attributed to manganese silicate stringer-type inclusions, generally found in this product.  The addition of at least about 62.5 parts per million by weight of magne-sium is shown to modify this deleterious inclusion morphology, with a resultant improvement in the ductility and weldability of such hot-rolled and the heavy gauge cold-rolled products.
Patent CA-1101187-A (CA)
Title: Casting by the immediate replacement of an object, that displaces a powder or granular material, with a liquid phase matter
Inventor: DONERAL GEORGE D
IPC: B22D23/00
Filed: 1977-04-29
Granted: 1981-05-19
Abstract: ABSTRACT OF THE DISCLOSURE   This invention relates to the method and apparatus for casting a solidifiable liquid phase matter in a medium of minute particles such as powder or granular material. A form-guiding element having a predetermined configuration and dimension is disposed within the powder or granular mat-erial. The form-guiding element is then controllably moved along a locus within the medium and the liquid phase material is injected behind the form-guiding element along its locus while the element is being moved. The liquid phase matter solidifies along the locus to form the desired object. Various forms and configuration in the object may be formed by controlling speed and/or direction of movement of the form-guiding element.
Patent CA-1053589-A (CA)
Inventor: SCHMITZ FLOYD A JR
IPC: B66C23/88
Filed: 1977-05-06
Granted: 1979-05-01
Abstract: ABSTRACT OF THE DISCLOSURE         A boom arm safety lock including a pivotally-mounted boom arm and a fluid cylinder assembly for pivoting the arm up and down.  A lock bar is pivotally mounted adjacent the boom arm for selectively supporting the boom arm to maintain the boom in a raised position in the event the fluid in the cylinder assembly is exhausted.
Patent CA-1052174-A (CA)
Inventor: SERCOMBE GEOFFREY
IPC: B30B9/30
Filed: 1977-06-15
Granted: 1979-04-10
Abstract: A B S T R A C T         A compactor arrangement for compacting the contents of a skip includes a compactor carried by a support structure and having a pressure platen mounted for movement generally downwardly and upwardly into and out of a skip.  The arrange-ment also has a ground-based skip support separate from the support structure for receiving and locating a plurality of skips and means for effecting relative arcuate or linear move-ment between the compactor and the receiving and locating means.          Also, means are provided between the support structure and the skip support for preventing the support structure being lifted as a result of the forces applied during compaction so that the pressure platen of the compactor can be caused to make successive compacting strokes on different skips in turn.
Patent CA-1055313-A (CA)
Inventor: VAN DE KERKHOF HERMAN
IPC: A01K47/00
Filed: 1977-07-28
Granted: 1979-05-29
Abstract: ABSTRACT OF THE DISCLOSURE         A bee hive having a bottom section including inclined boards extending upwardly from the front and rear walls to meet at about the center of the top of the side walls to define a first space beneath the boards and a second space above the boards.  Internal vents in the side walls to permit air flow between the first space and the second space.  At least one closeable vent in each side wall communicates the first space with the exterior of the bottom sections.  At least one closeable vent in the rear wall communicates the second space with the exterior of the bottom section.  A hive section having double walls is provided and the hive has a top section comprising (i) an inner cover that can be adapted to function as a feed and provides insulation; (ii) a reversible inner lid; and (iii) an outer lid.  The hive permits wintering of bees in cold climates.
Patent CA-1097310-A (CA)
Title: Hydroalkylation process and a composition and process  for producing said composition
Inventor: MURTHA TIMOTHY P
IPC: C07C67/00
Filed: 1977-11-15
Granted: 1981-03-10
Abstract: Abstract of the Disclosure An aromatic hydrocarbon is contacted under hydroalkylation con-ditions and in the presence of hydrogen with a composition comprising at least one platinum compound supported on a calcined, acidic, nickel and rare earth-treated crystalline zeolite.
Patent CA-1079155-A (CA)
Inventor: DOUGLAS PAUL M
IPC: G05D23/185
Filed: 1977-12-06
Granted: 1980-06-10
Abstract: APPLICATION OF: PAUL MARTIN DOUGLAS          AND ANDREW A. KENNY     FOR: LINEAR VACUUM PROGRAMMER     A B S T R A C T     This invention discloses a linear programmer for controlling parts of a servo system by a fluid pressure.  The programmer comprises a first body with a longitudinal bore.  A second body is joined to the first body forming a manifold therebetween.            Apertures in the first body provide fluid communication between the bore and manifold.  A plunger is disposed so as to be longitudinally movable within the bore to connect and disconnect the manifold to a source of sub-atmospheric fluid pressure to thereby  activate the parts of the system.
Patent CA-1140983-A (CA)
Title: Capacitive noise filter
Inventor: REICHEL ALFRED G
IPC: H04B15/02
Filed: 1978-01-06
Granted: 1983-02-08
Abstract: The invention is directed to a circuit arrangement and a suppressor-insulator member for suppressing noise in a portable, hand-held, electric-powered tool such as a double-insulated tool or the like while at the same time providing electrical insulation between voltage-carrying portion within the tool and an exposed part of the tool accessible to the operator of the tool. The suppressor-insulator member for conducting high-frequency noise from the voltage-carrying portion within the tool to the exposed metal part includes two connecting plates connectable to the voltage-carrying portion and the exposed-metal part respectively; and, a plate-like element of insulating material sandwiched between the connecting plates. The plate-like element has a predetermined thickness and extends outwardly beyond the periphery of the connecting plates 90 as to cause the element to define a creep-path between the connecting plates of sufficient length to electrically insulate the exposed-metal part from the voltage-carrying portion of the tool.
Patent CA-1088019-A (CA)
Inventor: HELINEVA MARKUS
IPC: A47F/
Filed: 1978-01-24
Granted: 1980-10-21
Abstract: ABSTRACT OF THE DISCLOSURE The invention provides a conveyor apparatus adapted to be located downstream of a check-out station, and/or optical reader, said conveyor apparatus comprising an upper frame structure including a conveyor belt, a driving mechanism for driving said conveyor belt, and a roller which said conveyor belt passes, a lower frame structure supporting the upper frame structure such that the upper frame structure, is movable in the vertical direction; and a lifting device between said upper frame structure and said lower frame structure, by means of which said upper frame structure can be moved in said vertical direction.
Patent CA-1102426-A (CA)
Inventor: ALLOCCA MICHAEL A
IPC: G01G19/00
Filed: 1978-01-30
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE     A system for simultaneously writing current postage rate charts into remote memories associated with a plurality of postage scale or meter microprocessors incorporates carrier wave transmis-sion of encoded rate charts to the microprocessors.  A data block, which includes an encoded receiving station address, the encoded postage rate chart, an encoded incremented rate revision designa-tion and encoded error check characters, is transmitted.  Each user's scale and/or meter includes a radio receiver, audio to digital conversion circuitry, serial to parallel conversion cir-cuitry, and improper signal rejection circuitry. Optional direct telephone line reception is provided.
Patent CA-1120411-A (CA)
Inventor: GARDNER PAUL J
IPC: B01D53/04
Filed: 1978-02-10
Granted: 1982-03-23
Abstract: SINGLE BED SEPARATOR APPARATUS     ABSTRACT OF THE DISCLOSURE           An apparatus for separating a product effluent from a fluid mixture through the retention of a component, or components, in a bed of adsorption particles.  The apparatus has a housing with a chamber therein for retaining the bed of adsorption particles.  A first port in the housing connects the chamber with a source of the fluid mixture.          The bed of adsorption particles is connected to a second port in the housing through a header chamber.  The second port is connected to a product effluent responsive device.  A third port in the housing connects the chamber to a discharge conduit.  A first valve controls the communication of the fluid mixture into the chamber and a second valve inhibits the communication of any resultant product effluent through the second port until a specific fluid pressure develops in the chamber whereby the bed of adsorption particles readily adsorbs a component, or components, in the fluid mixture.  After this specific fluid pressure is achieved, a fixed volume of the fluid mixture is communicated to the bed of adsorption particles where the component, or components, are retained and a resultant product effluent flows into the header chamber for distribution through the second port.   Upon completion of the communication of the fixed volume of fluid mixture to the bed of adsorption particles, the first valve prevents further fluid mixture communication to the bed of adsorption particles.          Thereafter, the product effluent stored in the header chamber flows into the bed of adsorption particles and purges the component, or components, therefrom by flowing through the third port to the dis-charge conduit.
Patent CA-1092526-A (CA)
Inventor: CHAMPLIN CHARLES L
IPC: B01D46/10
Filed: 1978-02-27
Granted: 1980-12-30
Abstract: AIR FILTER ASSEMBLY               Abstract of the Disclosure An air filter assembly is provided which comprises a multisided air filter panel and a multisided supporting frame therefor.  The frame is of unitary construction and includes a foraminous center section, and a marginal section delimiting the center section.  The center and marginal sections are in supporting engagement with one surface of the filter panel.  The frame is provided with a plurality of peripheral sections which are foldably connected to the marginal section and cooperate with one another to delimit the center and marginal sections.  Each peripheral section includes foldably connected first and second flange segments which are disposed in substantially face-to-face fold back relation.  The first flange segment is foldably connected to a portion of the marginal section and extends angularly inwardly therefrom and forms an acute angle with the portion of the marginal section to which it is attached.  A third segment is foldably connected to the second flange segment and extends angularly therefrom. Tabs are foldably connected to the ends of the second flange segments of alternate peripheral sections and when the frame is set up in assembled relation the tabs become automatically aligned with and inserted into adjacent pockets formed by the adjacent first and second flange segments of the adjacent peripheral section.  A peripheral portion of the filter panel is secured in sandwiched relation between the marginal section and the third segment of each peripheral section.  The construction of the frame enables the filter assembly to assume a collapsed state so that a plurality of such assemblies can form a compact bundle for shipping and/or storage.
Patent CA-1102182-A (CA)
Inventor: GRAVISSE PHILIPPE
IPC: D06M11/53
Filed: 1978-03-28
Granted: 1981-06-02
Abstract: ABSTRACT      Sheet materials are provided which are photo-luminescent by virtue of their coating.    These sheet materials comprise a textile or other flexible sheet material substrate to which adheres a coating layer consisting of one or more synthetic resins admixed with a photoluminescent complex, the latter com-prising(a) a phosphorescent metal sulphide such as zinc, calcium, cadmium or strontium sulphide and (b) a first substance which absorbs energy of short wavelength and emits it within the absorption spectrum of the said sulphide and with or without (c) a second substance which is fluorescent and which imparts to the said sheet  materials a daytime coloration different from their nighttime coloration.    The sheet materials may be textile sheet materials useful for the production of garments, in particular safety garments and furnishing fabrics.  Self-adhesive materials may also be produced.
Patent CA-1089196-A (CA)
Inventor: RAHN MARTIN
IPC: C22B1/10
Filed: 1978-04-11
Granted: 1980-11-11
Abstract: ABSTRACT OF THE DISCLOSURE:           A process of thermally treating fine-grained solids with high-oxygen gases and, if desired, energy carriers at temperatures at which said solids form molten and gaseous products, in which process the solids, high-oxygen gases and any energy carriers are mixed to form a suspension at a temperature below the reaction temperature and, as said suspension, are fed into a vertical combustion path at a velocity which precludes back-firing and are reacted in the combustion path to form a suspension which contains mainly molten particles, and the latter suspension is fed into a cyclone chamber.  The process of the invention is character-ized in that the molten material produced from the suspension is separated in the cyclone chamber and discharged through an opening provided in the lower portion of the shell of the cyclone, the gas stream from which most of the molten products have been removed is discharged through an opening, which is formed in the end wall and lies approximately in the axis of the cyclone chamber, into a cooling chamber, which directly follows in the direction of flow, and reactants are added to the gas phase to initiate a subsequent reaction within the core flow region of the cyclone chamber and/or immediately after the discharge of the gases from the cyclone chamber.
Patent CA-1099619-A (CA)
Inventor: CHARSCHAN SIDNEY S
IPC: C21D1/09
Filed: 1978-05-11
Granted: 1981-04-21
Abstract: S. S. Charschan 13 E. S. Tice  3 LASER ANNEALING     Abstract of the Disclosure A selected portion of a nonferrous, metallic workpiece, such as a copper or copper alloy workpiece, is annealed to a controlled degree of temper by irradiating the selected portion of the workpiece with a pulsed laser beam, while so regulating a parameter of the pulsed laser beam as to effect the desired, controlled degree of temper.  The regulated parameter may be the intensity and/or duration of a laser pulse.                             -i-
Patent CA-1055770-A (CA)
Title: End plug closures for shirred casing sticks and methods for making them
Inventor: SHERIDAN ARTHUR L
IPC: A22C13/00
Filed: 1978-05-12
Granted: 1979-06-05
Abstract: END PLUG CLOSURES FOR SHIRRED CASING STICKS AND METHODS FOR MAKING THEM     ABSTRACT OF THE DISCLOSURE          Improved end closures for shirred casing sticks and methods for making them which comprise inturning a predetermined amount of a casing material into a forming tube and then compressing the inturned casing material against a fixed surface to form a free floating, semi-floating or fully anchored type flat end plug which when anchored within the fore end of a shirred stick may or may not form an integral part thereof.               S P E C I F I C A T I O N   1.
Patent CA-1103506-A (CA)
Inventor: UHLIG FRITZ
IPC: G03F7/016
Filed: 1978-06-23
Granted: 1981-06-23
Abstract: PROCESS FOR THE PREPARATION OF PLANOGRAPHIC        PRINTING FORMS BY MEANS OF LASER BEAMS     Abstract of the Disclosure This invention relates to an improvement in the process for the preparation of a planographic printing form wherein a recording material comprising a support of anodically oxidized aluminum with an oxide layer weighing at least 2 grams per square meter and a light-sensitive recording layer on the oxide layer is imagewise irradiated with a laser beam, thus rendering the irradiated por-tions of the recording layer oleophilic and/or insoluble, and the non-irradiated areas of the recording layer are then removed with a developer liquid, the improvement comprising employing a re-cording layer which contains a negative-working light-hardenable diazo compound and an amine resin.
Patent CA-1103153-A (CA)
Inventor: RONCARI GAETANO
IPC: C08F2/00
Filed: 1978-07-12
Granted: 1981-06-16
Abstract: ABSTRACT     This invention relates to a water-insoluble reagent for an immunologlcal determination having a specific weight corresponding to about that of water in tbe form of discrete latex particles, to which is bound an immuno-logically active material, wherein the latex consists of a dispersion of particles of vinyl polynerisates, which carry the end-groups groups of the formula   whereby the particles are formed from a core of vinyl and/or diene polymerisate, which carries carboxyl and/or sulphonate functions, and of an outer layer of vinyl polymerisate, which carries as the end-groups groups of the formula   , and have an average diameter between 0.03 µm and 5 µm.