baber/WOPTO huggingface dataset:
Patent CA-1138378-A (CA)
Inventor: MACIEREWICZ JACEK J
IPC: B04C5/14
Filed: 1980-03-13
Granted: 1982-12-28
Abstract: ABSTRACT OF THE DISCLOSURE           This invention relates to improved methods and apparatus for separating or fractionating liquid suspensions by means of hydrocyclones and in particular relates to elutriation apparatus and methods for enabling the recovery of acceptable fractions of the suspension which would otherwise be lost through the hydrocyclone reject.  The invention includes the use of an elutriator comprising a housing adapted to be connected to the reject end of the hydrocyclone and the housing having an elongated conduit connected thereto and adapted to extend axially into the reject passage of the hydrocyclone to beyond the plane of no return and in radially spaced relation to the wall of the reject passage.  The conduit is provided with a closed free end portion which is of a diameter sufficient as to substantially block move-ment of the air core along the axis of the hydrocyclone and into the reject passage during operation.  This conduit is provided with openings therealong for emitting elutriation liquid in a swirling fashion around such conduit on both sides of the plane of no return.  The housing includes a chamber connected to the end of the conduit opposite the free end and communicating with the interior of the conduit for supplying elutriating liquid to the above-noted openings.
Patent CA-1135293-A (CA)
Inventor: SEKI YUKUHARU
IPC: B31F1/26
Filed: 1980-04-03
Granted: 1982-11-09
Abstract: ABSTRACT OF THE DISCLOSURE              The invention relates to a corrugating roll for a single-facer for corrugated board of the kind comprising a pair of corrugating rolls providing meshing fluted surfaces for corrugating a web fed therethrough and in which one face of the corrugated web is attached to a liner web.            An object of the invention is to provide a single-facer of this kind which, compared with known arrangements, is simple to manufacture and easy to maintain.            The invention is characterized in that said corrugating roll   is in the form of a roll cell fluted on its outer peripheral surface, a plurality of grooves are provided at appropriate spaced intervals along the outer peripheral surface of said roll cell so as to encircle said roll cell in the circumferential direction at right angles to said flutes, a plurality of bores are provided in said roll cell which extend  almost over its entire length, which bores respectively open into one common end surface of said roll cell and partly communicate with the bottoms of said grooves, and suction means disposed at said common one end surface of said roll cell for applying suction via said bores and grooves.
Patent CA-1127624-A (CA)
Title: Manual winch with safety clutch, especially as a  power source in nursing for lifting patients
Inventor: KRISTENSSON NILS L O
IPC: B66D5/00
Filed: 1980-04-11
Granted: 1982-07-13
Abstract: APPLICANT:  LANDSTINGENS INKOPSCENTRAL, LIC, EKONOMISK FORENING.          TITLE:      A MANUAL WINCH WITH SAFETY CLUTCH, ESPECIALLY AS A       POWER SOURCE IN NURSING FOR LIFTING PATIENTS.                ABSTRACT OF THE DISCLOSURE      A winch operated by a manual crank and handle for reeling-up or out a belt or rope and including a holding catch for preventing reeling-out when the handle is not actuated. A friction coupling mechanism is momentarily released when the handle is moved in the reeling-out direction, resulting in that the load is moved downwardly and actuates a screw mechanism which momentarily locks the coupling if the handle is stopped.          Reeling-out is thus effected by releasing and locking actions following each other at very small intervals, the reeling-out movement being practically synchronous with the movement of the handle until it is stopped.
Patent CA-1137641-A (CA)
Inventor: HOMAN MERLE E
IPC: G06F9/30
Filed: 1980-04-14
Granted: 1982-12-14
Abstract: ABSTRACT OF THE DISCLOSURE            A microprocessor external instruction feature which pro-vides for a single chip microprocessor with on-chip read only instruction store (ROS) that can also be operated with an off-chip instruction store.  To accomplish this, the microprocessor instruction sequencing logic (instruc-tion store, instruction register, instruction counter, and sequencing logic) is duplicated off-chip.  An external instruction mode input pin signal causes the microprocessor to take its instructions from the external instruction store via 12 external instruction (XI) input pins instead of from the on-chip ROS. A branch decision output pin signal from the microprocessor, which indicates that the branch conditions have been met, causes the external in-struction counter to be loaded with a branch address from the external instruction register instead of being stepped by external sequencing logic.  A wait output pin signal causes the external instruction feature logic to suspend operations while the microprocessor is in its wait state.
Patent CA-1126162-A (CA)
Title: Dentifrice containing amorphous precipitated  silica free of fluoride scavenger
Inventor: BLASER ERIC
IPC: A61K8/25
Filed: 1980-05-07
Granted: 1982-06-22
Abstract: Abstract A dentifrice cream comprising about 20% to about 50% by weight of a precipitated silica, said silica being characterized by having a bulk density of 0.40 to 0.48 g/ml, a surface area of less than 300 m2/g, and an oil absorption value of 75 to 95 ml/100 g having excellent cleaning abilities.  The silica is essentially free of aluminum or other fluoride scavengers thus providing a fluoride toothpaste having a high fluoride anti-caries activity over a long shelf life.
Patent CA-1164497-A (CA)
Inventor: HOWARD DURRELL U
IPC: B60D1/00
Filed: 1980-05-12
Granted: 1984-03-27
Abstract: ABSTRACT OF INVENTION    A trailer stabilizer is comprised of a hydraulic assembly having a pair of hydraulic units for provid-ing viscous fluid resistance to relative turning move-ments between a trailer and a towing vehicle.  The assembly includes flow controls for varying turning resistance in response to turning rate and vehicle speed.  Slack removal means constantly bias intercon-nected couplings to provide rate sensing and turning resistance with zero mechanical slack.  A brake con-trol system actuates towed vehicle brakes in response to hydraulic system pressure and includes speed responsive means preventing brake application below a predetermined speed.  Means are also provided for varying braking force in response to vehicle speed and turning rate, for adjusting braking force according to trailer size and road conditions, and for testing brak-ing force adjustments.
Patent CA-1128790-A (CA)
Inventor: CAMERIK EDUARD
IPC: G02B7/08
Filed: 1980-06-05
Granted: 1982-08-03
Abstract: ABSTRACT:          An optical focussing device for focussing a radiation beam emanating from a radiation source onto a record carrier, and more specifically for focussing a light beam onto a video disc or audio disc, comprises a frame in which an objective is movable axially in the direction of its optical axis with the aid of a drive system.  In order to avoid damaging of the record car-rier at least one elastic bumper is secured to the free end of the objective, which bumper absorbs shocks in the event of contact between the objective and the record carrier.
Patent CA-1188850-A (CA)
Inventor: FRASER WILLIAM A
IPC: C08F2/34
Filed: 1980-06-10
Granted: 1985-06-11
Abstract: ABSTRACT OF THE DISCLOSURE        Heterogeneous ethylene based hydrocarbon copolymers having high tear strength properties in film form, formed from ethylene, C3-4 monomer and C5-8 monomer with a molar ratio in the polymer of   of about 0.006 to 0.09, a   ratio of about 0.003 to 0.07 and having a Chain Branch Factor of about 0.2 to 0.8 and a narrow molecular weight distribution; a gas phase process for making such polymers, and film made from such polymers.
Patent CA-1131861-A (CA)
Title: Process for preparing microporous hollow fibers
Inventor: SOEHNGEN JOHN W
IPC: D01D5/247
Filed: 1980-06-26
Granted: 1982-09-21
Abstract: Abstract of the Disclosure The present invention provides a process for pre paring microporous hollow fibers by solvent stretching a non-porous hollow precursor fiber having a controlled degree of molecular orientation as measured by birefrin-gence.  Control of the precursor fiber orientation, yields a microporous hollow fiber having an improved balance of mechanical strength and permeability.
Patent CA-1167952-A (CA)
Inventor: SINCLAIR WILLIAM J
IPC: G02F1/035
Filed: 1980-08-20
Granted: 1984-05-22
Abstract: A VARIABLE ATTENUATION ELECTRO-OPTIC DEVICE          Abstract of the Disclosure A variable attenuation electro-optic device has a lens for collimating light from an input fiber and for focussing light into an output fiber.  The optical path of light passing through the device passes through a dynamic scattering liquid crystal cell whose optical transmissivity can be varied by varying an AC electric field applied across it.  Reflective and transmissive embodiments are described using one or two lenses of the Selfoc R type.  The applied AC introduces a frequency component into the attenuation which is suppressed to particularly adapt the device for use as an attenuator or enhanced and modulated to particularly adapt the device for use as a modulator.                          - i -
Patent CA-1125369-A (CA)
Inventor: RONK LEROY B
IPC: H02P1/00
Filed: 1980-08-27
Granted: 1982-06-08
Abstract: ROTARY PHASE CONVERTER Abstract of the Disclosure A rotary phase converter for connection to a single-phase a.c. power source and acapted to supply polyphase current to a polyphase electrical load.  The converter includes a dynamoelectric machine having at least three stator windings and at least first, second and third output terminals, an autotransformer and at least one capacitor.  The stator windings of the dyna-moelectric machine are oriented symmetrically with re-spect to each other both physically and electrically and each has a substantially equal number of active turns.  The first and second terminals of the dynamoelectric machine are adapted to be connected to the single-phase a.c. power source and they are also outputs of the converter.  The autotransformer is connected across the second and third terminals and has at least one tap positioned intermediate the ends thereof to serve as an output of the converter.  The capacitor is connected between the first output terminal and the autotransformer tap serving as a converter output.  The currents supplied from the converter outputs to the phases of the polyphase load. are maintained substantially balanced at full load.
Patent CA-1140376-A (CA)
Inventor: JASTRAB ALEXANDER G
IPC: G03B21/11
Filed: 1980-09-23
Granted: 1983-02-01
Abstract: ABSTRACT OF DISCLOSURE         A microfilm reader/printer has a plurality of interchangeable film carriers to accommodate microfiche of different sizes and format.  The film carriers are normally latched into two orthogonally oriented pairs of spaced, parallel rails so that film movement is limited.  However, if a film carrier is unlatched from said rails, one of the carriers may be interchanged for another.
Patent CA-1156470-A (CA)
Inventor: STOEV STOYCHO M
IPC: C21B3/08
Filed: 1980-10-17
Granted: 1983-11-08
Abstract: ABSTRACT OF THE DISCLOSURE     A method for regulating the granulometric characteristics of the components in metallurgical slags, wherein the slag, after its separation from the metallurgical furnace, and during its cooling is subjected to the adjustable action of vibration with a frequency from 12 to 100 Hz and an amplitude from 0.2 to 5 mm or an average vibrational radius in circular vibration from 0.4 to 12 mm.  This method permits to recover a considerable portion of the metal contained in the slags.
Patent CA-1139183-A (CA)
Title: Fabric washing process and detergent  composition for use therein
Inventor: MORRIS RONALD M
IPC: C11D3/06
Filed: 1980-10-24
Granted: 1983-01-11
Abstract: ABSTRACT:-A process for washing fabrics includes the steps of contacting the fabrics with a liquor containing a detergent active compound and an orthophosphate and subsequently contact-ing the fabrics with a liquor containing a polymer phosphate. The polymer phosphate may be added to the orthophosphate-containing liquor or may be present in a separate liquor. In the former case the polymer phosphate may be present from the start of the wash but in a form to delay its dissolution in the liquor, such as by being encapsulated, cogranulated or contained in a sachet.  Delay times o  about 5 minutes are disclosed.  The method leads to seduced incrustation on fabrics.
Patent CA-1145603-A (CA)
Inventor: GUSTAVSSON OLLE
IPC: F41A3/30
Filed: 1980-12-17
Granted: 1983-05-03
Abstract: A B S T R A C T            In a device for achieving speed control of a cylinder piston in relation to the cylinder, or vice versa, flow control means (12, 32) are utilized, and also cam profiles (15, 16 and 26, 27). The flow control means are composed of two constant flow valves (30a, 30b and 31a, 31b) which determine the flow for one each of the directions of the piston or the cylinder. The cam profile means have a first cam profile (15 and 26, respectively) which is connected when the piston (6) or the cylinder (5) moves in its first direction, and a second cam profile (16 and 27, respectively) which is connected when the piston or cylinder moves in its second direction. The flow control valves are controlled mechanically by the respective cam profiles via its respective control input (12e', 12e'') and determine a flow for the piston or cylinder which is de-pendent on the controlling but independent of the load on the piston or the cylinder.
Patent CA-1120807-A (CA)
Title: Solar energy collectors
Inventor: STEWART JOHN M
IPC: F24J2/52
Filed: 1980-12-24
Granted: 1982-03-30
Abstract: ABSTRACT OF THE DISCLOSURE         Improvements in solar energy collectors are disclosed.          The claims are directed to a mounting strip for use with solar collectors of the type which include a generally flat collector panel.  The strip is of elongate form and defines a cross-sectional shape which is uniform throughout the length of the strip and which defines a laterally directed channel for re-ceiving a side margin of the panel and a base portion disposed laterally of the channel and arranged to overlie a support surface adjacent the panel in use.  Solar collector arrays are also claimed in which two such strips are provided between opposed edges of adjacent panels in the array.  The strips are inverted with respect to one another and means is provided securing the strips to a support surface below the strips.
Patent CA-1148783-A (CA)
Inventor: CLARKE STUART G
IPC: G03C5/60
Filed: 1981-01-30
Granted: 1983-06-28
Abstract: ABSTRACT OF THE DISCLOSURE:    Process for the production of vesicular recording materials.  The photographic characteristics such as speed and contrast of vesicular recording materials are improved by treating the light-sensitive vesicular recording layer with an aqueous medium at 5 to 30°C for at least 45 minutes.  The treatment may be effected by spraying with cold water and winding the wet material into a roll. Water marking in the wound roll can be avoided by coating the recording layer prior to water treatment with an anti-marking composition such as a solution of nitrocellulose.
Patent CA-1158957-A (CA)
Inventor: TAYLOR HENRY D
IPC: B62D11/18
Filed: 1981-03-16
Granted: 1983-12-20
Abstract: Abstract of the Disclosure A hydraulic system for controlling hydraulic motors for driving a tracked vehicle which circuit utilizes a single manual control lever to control valve control units to direct pilot pressure to actuate bi-directional valves that control the direction of movement of the hydraulic motors.
Patent CA-1140388-A (CA)
Inventor: OKADA YUZO
IPC: A23L27/30
Filed: 1981-03-18
Granted: 1983-02-01
Abstract: ABSTRACT OF THE DISCLOSURE           A dipeptide sweetening composition, comprising a unit weight of a dipeptide sweetener and at least one flavoring agent in an amount sufficient to impart a tasting strength equal or equivalent to that of 10 to 200%, by weight, of monosodium L-glutamate based upon the weight of the dipeptide sweetener, the flavoring agent being selected from the group consisting of sodium glutamate, sodium inosine-5'-phosphate, sodium guanosine-5'-phosphate and sodium aspartate, the sweetening composition is a low-calorie sweetner having a sweetness quality  superior to that of a dipeptide sweetener alone.
Patent CA-1170955-A (CA)
Inventor: BIRD ROBERT E
IPC: F16K31/12
Filed: 1981-04-08
Granted: 1984-07-17
Abstract: Abstract of the Disclosure In a safety shut-orr valve, a housing includes a valve member therein, having a rirst valve seat, and against whlch a valve normally rests during closure, with a spring normally biasing said valve off of said first valve seat, and with the force of the pressurized fiuid passing through the valve causing sald valve to act against the rorce of a regulator and a second spring to become unseated for allowing gas flow, and reseated once again against a second valve seat when excessive pressure is encountered and which curtails the further flow of fluid through the valve housing, and thereby shutting off the fluid from its source.
Patent CA-1120561-A (CA)
Inventor: SEDDON ALAN E
IPC: B60M1/18
Filed: 1981-04-10
Granted: 1982-03-23
Abstract: ABSTRACT In lightweight fabricated equipment of an overhead electric traction system, (e.g. section insulators and neutral sections), comprising at least one tension insulator mechanically connected between and electrically insulating from one another two elongate metal members, in at least one mechanical con-nection between the tension insulator and elongate metal member, an insulating end part of the tension insulator and an end part of the elongate metal member are in substantial alignment and have a supplementary connecting member con-nected to them by separate securing bolts.  The undersurfaces of the end parts of the tension insulator and elongate metal member and the undersurface of the supplementary connecting member constitute a smooth running surface.
Patent CA-1197804-A (CA)
Inventor: THOMPSON BUSTER R
IPC: C10B33/10
Filed: 1981-04-15
Granted: 1985-12-10
Abstract: COKE OVEN EMISSION CONTROL    METHOD AND APPARATUS   ABSTRACT OF THE DISCLOSURE A method of and apparatus for controlling emissions from nonrecovery coke ovens in which hot partially burned distillation products are discharged from a plurality of such ovens constructed in side-by-side relation in a battery into a common waste heat tunnel leading to a common stack which provides a draft through the tunnel sufficient to maintain a subatmospheric pressure in the coking chambers of the ovens.  A substantially closed shed extends over the coke guide and quench car tracks along the entire length of the battery for confining particulate and gaseous emis-sions released during pushing of coke from the ovens.  A plurality of conduits provide fluid communications from the interior of the shed to the waste heat tunnel to enable emissions to be drawn from the interior of the shed for incineration in the waste heat tunnel.  Valves in the con-duits are operable to open the conduits during pushing of coke from the ovens and for closing the conduits after completion of the pushing operation.
Patent CA-1164532-A (CA)
Inventor: RADKE JOHN C
IPC: A61B5/0488
Filed: 1981-06-25
Granted: 1984-03-27
Abstract: MANIBULAR ELECTROMYOGRAPH                    ABSTRACT OF THE DISCLOSURE         A system for measuring and displaying the coordination, duration of and interval between contractions of the masticatory muscles.  Several electrodes, each associated with a masticatory muscle, generate signals responsive to muscle contraction.  The electrode outputs are amplified, rectified and filtered, and then applied to several circuits, depending upon the operating mode selected.  In a first mode, the filtered outputs are integrated during each muscle contraction and displayed by an electronic bar graph.  The output is also applied to a threshold circuit which identifies the start and finish of the muscle contraction.  The output of the threshold circuit is then processed by a timing circuit which determines and displays in. digital form the duration of the muscle contraction and the interval between contractions.  The system operates in a second move in the same manner as in the first mode, except that an analog signal is derived from the digitized interval signal and applied to the graph graph in place of the integrated output.  In a third mode, the filtered output is applied to a logarithmic amplifier which drives the bar graph so that the logarithm of the electrode voltage amplitude is displayed.  The output of the threshold circuit is also processed by a second timing circuit which determines and displays in digital form the time lapse between. the contraction of the first muscle to contract and the contraction of the remaining muscles, thereby providing an indication of muscle coordination.
Patent CA-1132317-A (CA)
Title: Method and apparatus for blow molding
Inventor: KRALL THOMAS J
IPC: B29C49/28
Filed: 1981-08-07
Granted: 1982-09-28
Abstract: METHOD AND APPARATUS FOR BLOW MOLDING                 ABSTRACT OF THE DISCLOSURE        A method and apparatus utilizing preform and final blow molds for forming molecularly oriented thermoplastic articles. According to the method, an extruded tubular parison is positioned within the pre-form blow mold and blown to a pre-form configuration. The blown pre-form is then conveyed, while suspended from a moveable carrier, through a thermal conditioning chamber and the temperature of the pre-form is adjusted to within the range for molecular orientation. Next, the thermally conditioned pre-form is conveyer by the move-able carrier to a final blowing station where the pre-form is blown to the configura-tion of the final article. In a first disclosed embodiment, the carrier is a tubular which is inserted into the tubular parison at the pre-form molding station prior to the first molding operation. In the second embodiment, the carrier is a tubular projection telescopically inserted into the blown pre-form prior to the entry of the pre-form into the thermal conditioning chamber, and the pre-form is blown to its final shape by a blow tube inserted through the carrier. In both embodiments, the carriers are used to convey successive pre-forms in a continuous molding operation.
Patent CA-1225948-A (CA)
Inventor: MILLER WALTER L
IPC: C12N15/71
Filed: 1981-08-12
Granted: 1987-08-25
Abstract: A DNA transfer vector containing a nucleotide sequence coding for bovine pre-growth or growth hormones, microorganisms containing the transfer vector, a method for making the transfer vector, and a method for preparing the bovine growth hormone sequence are described.
Patent CA-1178063-A (CA)
Inventor: LEA RICHARD K
IPC: C22B3/26
Filed: 1981-09-04
Granted: 1984-11-20
Abstract: ABSTRACT OF THE DISCLOSURE        The process comprises the steps of leaching the concentrate with hot hydrochloric acid and chlorine gas to dissolve most of the gold, platinum and palladium, treating the residue from the leaching step with an excess of an alkaline oxidising agent to solubles the ruthenium, slurrying the resulting solids in water, com-bining the precious metal values from the slurry with the liquor from the leaching step and releaching the resulting slurry with hot hydrochloric acid and chlorine.  The leach liquor which is then separated from the remaining solids is a chloride solution which contains substantially all the platinum group metals and gold present in the concentrate.