baber/WOPTO huggingface dataset:
Patent CA-1112533-A (CA)
Inventor: HOWES RANDOLPH M
IPC: A61B5/0215
Filed: 1977-09-07
Granted: 1981-11-17
Abstract: ABSTRACT OF THE DISCLOSURE         A venous catheter device including a plurality of inde-pendent and noncommunicating fluid conveying lumens housed within or formed in a single catheter.  One end of each lumen is adapted to be connected to a different fluid source, such as an intravenous (IV) drug infusion or feeder device, a syringe, etc.; or to a central venous pressure (CVP) measuring device.  The other end of each lumen exits at or proximate to the catheter terminus which, in turn, is adapted to be positioned within a vein.  A hollow needle slidably receives the catheter terminus and is adapted for vein penetration and catheter positioning within the penetrated vein.  Alternatively, the catheter can be used without a needle in which case a vein is directly ex-posed and partially transected allowing direct insertion of the catheter.
Patent CA-1082902-A (CA)
Inventor: GRISET ERNEST J JR
IPC: A61C15/04
Filed: 1977-09-12
Granted: 1980-08-05
Abstract: PRODUCTION OF NOVELTY YARNS                        Abstract A novelty yarn having a pronounced variation in linear density is obtained by passing at least one multifilament yarn through a fluid tangling zone and by alternatingly and mechanically tensioning and relaxing the yarn within the tangling zone.
Patent CA-1050702-A (CA)
Inventor: JOANNOU CONSTANTINOS J
IPC: F24S10/50
Filed: 1977-09-19
Granted: 1979-03-20
Abstract: SUN-HEATED PORTABLE SHOWER This invention relates to a portable shower unit which is provided with an elevated reservoir.  The reservoir is also a thermally insulated solar collector.
Patent CA-1094629-A (CA)
Inventor: HEIJNEMANS WERNER A L
IPC: H01J31/28
Filed: 1977-10-13
Granted: 1981-01-27
Abstract: ABSTRACT:            A deflection device for the electron beam, in, for example, an image pick-up tube, comprising an annular yoke of a magnetic material, having at least two pairs of diametrically arranged, inwards directed cores which are enveloped by deflection coils. On the inner end of each core there is provided a poleshoe in the form of a ring segment, the poleshoes enclosing a deflection space. In order to ensure that the shape of the generated deflection fields can be accurately and reproducibly defined, each coil is situated, viewed from the deflection space, comp-letely behind the associated poleshoe, the spaces between the poleshoes being bridged by intermediate pieces of a non-magnatic material.
Patent CA-1122888-A (CA)
Title: Metal phosphatizing employing chlorate and  aromatic nitro compound accelerator
Inventor: BROOKS MICHAEL E
IPC: C23C22/36
Filed: 1978-01-05
Granted: 1982-05-04
Abstract: P-10719     AEK/dlr METAL PHOSPHATIZING EMPLOYING CHLORATE  AND AROMATIC NITRO COMPOUND ACCELERATOR                 ABSTRACT OF THE DISCLOSURE         An aqueous composition for treating a metal surface to produce a phosphate coating containing zinc, phosphate, chlorate and an aromatic nitro compound.
Patent CA-1102101-A (CA)
Title: Electrolytes a solvants organiques pour generateurs electrochimiques de grande energie specifique
Inventor: BROUSSELY MICHEL
IPC: H01M6/16
Filed: 1978-01-18
Granted: 1981-06-02
Abstract: PRECIS DE LA DIVULGATION     L'invention concerne un électrolyte pour piles au lithium comprenant un mélange de plusieurs solvants organiques aprotiques compatibles avec le lithium et un soluté qui est un sel alcalin. Selon l'invention les solvants organiques sont au nombre de trois dont le premier est choisi dans la catégorie des solvants de constante diélectrique égale ou supérieure à 35, le second dans la catégorie des polyéthers linéaires dont les fonctions éther sont en position .gamma. et le troisième dans la catégorie des solvants à fort pouvoir solvatant dissolvant des quan-tités importantes du sel alcalin.Application aux générateurs électro-chimiques dont l'électrode positive est de l'oxyde cuivrique ou du bisulfure de fer.
Patent CA-1096707-A (CA)
Inventor: JOHNSON WILLIAM B
IPC: F22B31/00
Filed: 1978-01-30
Granted: 1981-03-03
Abstract: ABSTRACT OF THE DISCLOSURE         A method and associated apparatus for carrying out fluidized bed combustion and transferring heat produced thereby to a boiler includes providing a fluidized bed of particulate matter and introducing fuel particles thereinto, causing a portion of the fluidized bed constituents to flow upwardly through a heat exchanger which is essentially free of any obstructions to said flow, and reintroducing the portion of fluidized bed constituents which flow through the heat exchanger, back into the fluidized bed.  As preferably embodied, the portion of fluidized bed consti-tuents flows into an inlet at the bottom of the heat exchanger from a quiescent zone adjacent the combustion bed and a gas having a combustible component is introduced into the heat exchanger. Advantageously, additional fuel particles are also introduced into the heat exchanger to flow upwardly therethrough.  Also advantageous-ly, the cross-sectional area of the flow path provided in the heat exchanger is proportioned to provide an essentially uniform temperature profile across the flowing particles at any position in the heat exchanger.
Patent CA-1097957-A (CA)
Inventor: JARBY SVEN
IPC: A61C3/06
Filed: 1978-03-09
Granted: 1981-03-24
Abstract: Abstract of the Disclosure Honing and polishing instrument especially intended for dental use and being provided with a shaft on the free end of which a replaceable honing or polishing unit made of a flexible elastic material can be attached, so that the unit by way of an undercut recess embraces a radial sleeve at the end of the shaft.  The shaft has an end part extending axially beyond the sleeve and the honing or polishing unit has a corresponding opening at the bottom of the recess in the unit.
Patent CA-1117096-A (CA)
Inventor: WRISTERS HARRY J
IPC: B01J35/06
Filed: 1978-05-09
Granted: 1982-01-26
Abstract: ABSTRACT OF THE DISCLOSURE      Solid catalyst particles are made into a form and shape that is casier to handle, without changing their surface area or ad-versely affecting their activity by "matting" the catalyst particles with a fibrillatabie p?retrafluoroethylene polymer by mechanical cleanie? acties and subsequently shaping the "mat", followed by controlled sizing and shaping into the form of pellets, tablets, and the like by known mechanical meaur.  Activity is not impaired, and shaped polymer can be produced in those reactions where the catalyst determines the shape of the product.  The practice of this invention is particularly useful to shaped Ziegler-type catalysts.
Patent CA-1094035-A (CA)
Inventor: KELLY JAMES P
IPC: F21V17/10
Filed: 1978-08-09
Granted: 1981-01-20
Abstract: LATCH AND HINGE ASSEMBLY FOR REFRACTOR PANEL IN LUMINAIRE     Abstract of the Disclosure A latch and hinge assembly for releasably securing the refractor panel of a luminaire on the luminaire housing at the open end thereof includes first and second pairs of spring loaded plunger rods mounted at non-intersecting ends of the frame of the refractor panel, each such pair of rods extending along a common axis parallel to the edge of the corresponding end of the frame.  The rod ends which normally extend outwardly from the frame at opposite ends thereof are received in aligned apertures in corresponding walls of the luminaire housing to attach the refractor panel thereto. Manually operated tabs for retracting the plunger rods of the first rod pair extends from a first surface of the panel facing the interior of the housing while the tabs for retracting the plunger rods of the second rod pair extend from  the opposite surface of the panel facing the exterior of the housing.  The location of the manually operated retracting tabs prevents the release of two rods not of the same pair. The first pair of plunger rods serves as a hinge about which the panel may be pivoted and the second pair of plunger rods serves as a latch which is releasable for obtaining access to the interior of the luminaire housing.  A preferred embodiment of the luminaire and refractor panel according to the invention has the shape of an equilateral polygon so that the refractor panel can be oriented in various preselected ways with respect to the housing for ease in maintenance of the luminaire.
Patent CA-1110098-A (CA)
Inventor: WILWERDING DENNIS J
IPC: G02B7/28
Filed: 1978-08-11
Granted: 1981-10-06
Abstract: ABSTRACT OF THE DISCLOSURE           An improved automatic continuous focus system of the spatial image correlation type determines whether focus correction is needed and in which direction and moves the lens with a proportional drive in accordance with these determinations.  The focus motor may be operated continuously for large focus errors to allow smoother lens motion and faster response without increased motor requirements, a large active scan duty cycle may be provided, minimum drive pulses may be utilized for zero focus errors so as to overcome static friction in the lens drive and improve the focus accuracy and electronic debouncing of switches may be accomplished.
Patent CA-1114149-A (CA)
Title: One-step curing method for manufacture of neutron  absorbing plates
Inventor: STORM ROGER S
IPC: C08K3/38
Filed: 1978-10-04
Granted: 1981-12-15
Abstract: ONE-STEP CURING METHOD FOR MANUFACTURE       OF NEUTRON ABSORBING PLATES            ABSTRACT OF THE DISCLOSURE:          A one-step curing method for the manufacture of neutron absorbing articles, such as those of long thin plate form for use in storage racks for spent nuclear fuel, includes curing a mixture of boron carbide particles, phenolic resin in liquid state and phenolic resin in particulate solid form at an elevated temperature to produce a neutron absorbing article containing at least 6% of B10 content from the boron carbide thereof, 60 to 80% of boron carbide particles and 40 to 60% of irreversibly cured phenolic polymer, with the proportion of weight of phenolic resin in liquid state to that of phenolic resin in solid state being within the range of about 1:0.5 to 1:4, the temperature of the cure being in the range of about 130 to 200°C. and the cure being effected over a period of about two to twenty hours. Although the liquid resins that are preferably employed are resols, novolaks plus curing agents are preferred solid resins.  Because of the use of solid resin, in particulate form, together with the resin in liquid state, the neutron absorbing articles made include better bonds between the polymer and the boron carbide particles than would be obtainable by using the normally solid resin only and the phenolic polymer content of the article is greater than that which would be obtainable by a one-step cure effected when the curable phenolic resin is all in the liquid state and the mixture is not held in article form under compacting or pressing pressure.          As a result of the greater quantity of phenolic resin which may be incorporated in the product for curing by the one-step method of this invention the article or plate made possesses various desirable physical and chemical properties so that it can withstand thermal cycling from repeated spent fuel insertions and removals, can withstand radiation from spent nuclear fuel for long periods of time without losing desirable neutron absorbing and physical properties, is sufficiently chemically inert in water so as to retain neutron absorbing properties in the event of a leak which would allow the plates to be contacted by water, does not galvanically corrode and is sufficiently flexible so as to withstand operational basis earthquake and safe shutdown earthquake seismic events without objectionable loss of neutron absorbing capability and other desirable physical properties, when installed in a storage rack for spent nuclear fuel.
Patent CA-1122784-A (CA)
Inventor: MCMAHON BARRY J
IPC: C09B67/00
Filed: 1978-10-13
Granted: 1982-05-04
Abstract: 3-11386/MA 1714/+ Canada Granulation of Pigments Abstract of the Disclosure The present invention provides a process for producing a substanti-ally dry, low dusting, free-flowing granular pigment composition, comprising contacting a fluidised bed of pigment, a granulating assistant and water, and removing granules so obtained. Preferred methods include:-(1)   Spraying the granulating assistant and water on to the fluidised bed of pigment; and (ii)  Incorporating all or part of the granulating assistant into the pigment prior to fluidisation and spraying with water, or water and the remaining granulating assistant.
Patent CA-1116704-A (CA)
Inventor: OSBORNE JOHN
IPC: G01R19/22
Filed: 1978-10-30
Granted: 1982-01-19
Abstract: ABSTRACT OF THE DISCLOSURE         A precision rectifier circuit using an operational amplifier connected in a differential amplifier mode.  At least one of the rectifying feedback connections is provided by the emitter-base path of a transistor and a half-wave rectified version of the input signal is obtained from the collector of the transistor.  A biassing circuit is disclosed for use when both rectifying feedback connections are transistors to reduce the output voltage swing between one transistor turning off and the other turning on.
Patent CA-1083394-A (CA)
Inventor: DOCIE RONALD L
IPC: B60R1/08
Filed: 1978-10-30
Granted: 1980-08-12
Abstract: TITLE:   REAR VIEW MIRROR FOR VEHICLES     ABSTRACT OF THE DISCLOSURE     A rear view mirror for vehicles is provided having a composite surface including a specific configuration seg-ment of spherical surface for enhancing the field of view. This mirror includes a primary mirror having a reflecting surface which may be planar and has formed therewith a se-condary or auxiliary mirror section of elongated configura-tion that has an arcuately curved reflecting surface that comprises a spherical surface segment.  This auxiliary mir-ror surface is of a substantially lessor area dimension than that of the primary mirror and is positioned in a corner area of the primary mirror so as to be effectively non-obstructing to the conventional utilization of the primary mirror but of sufficient size and configuration as to produce a reflected image of a relatively large angular field of view in a hori-zontal plane with respect to that which may be formed by the primary mirror.  This relative size and configuration of the auxiliary mirror is combined with orientation of that mirror so that its longer axis extends in the direction of viewing as referenced from one to the other and thus provides substan--i-tial directivity to viewing due to substantial limitation of viewing in a direction transverse to the longer axis.  The auxiliary mirror may be either separately formed and mounta-ble on an exterior surface of a primary mirror or it may be integrally formed with the primary mirror.                             -ia-
Patent CA-1070433-A (CA)
Inventor: MASUZIMA SHO
IPC: H05K3/30
Filed: 1978-10-31
Granted: 1980-01-22
Abstract: ABSTRACT OF THE DISCLOSURE         A machine for processing and securing parallel lead electronic circuit elements into lead receiving openings formed in a printed circuit board is provided.  The machine includes a supply assembly for selectively supplying one group of a plurality of distinct groups of parallel lead elec-tronic circuit elements, the supply assembly including a selecting sub-assembly for selecting one of the circuit elements from the selected group circuit ele-ments to be supplied.  A transfer assembly includes a chuck for receiving the supplied circuit elements and displacing same to a release position.  An insert assembly is adapted to effect release of the circuit elements when the chuck is displaced to a release position and includes a holding sub-assembly for receiving each circuit element released by the chuck at the release position and a plunger sub-assembly adapted to engage the circuit elements at the re-lease position and displace the circuit elements from the release position to an inserted position.  A board handling assembly disposes the receiving openings in the printed board in alignment with the circuit elements so that the parallel leads each circuit element are received in the appropriate receiving openings when same are displaced to the inserted position.
Patent CA-1114505-A (CA)
Title: Method of measuring blood clotting time
Inventor: SAITO YUKIO
IPC: A61B5/145
Filed: 1978-11-09
Granted: 1981-12-15
Abstract: ABSTRACT OF THE DISCLOSURE           A blood clotting end point detector which includes means for monitoring an electrical signal representing the value A of one or more optical properties of a blood plasma sample to which a coagulating agent has been added, means for deriving the first and the second differentials with respect to time of the value A, means for detecting the moment Ta when the second differential changes from negative to positive or becomes positive, means for detecting the moment Tb when the second differential next changes from positive to negative, means for deriving the difference (R) at time t between a line, which at time Ta is tangent to the curve A, and the curve A, means for determining whether the difference (R) or the integral, with respect to time from moment Ta to moment Tb, of the difference (R) exceeds a predetermined threshold value, in which case moment Tb is taken as the true clotting end point.
Patent CA-1113179-A (CA)
Inventor: SHIM NORM
IPC: A61M5/142
Filed: 1978-11-15
Granted: 1981-11-24
Abstract: ABSTRACT OF THE DISCLOSURE A system for infusing fluids into the human body includes a peristaltic-type metering apparatus which controls the flow of fluid through a disposable administration set. The metering apparatus includes a control system which allows the volume and rate of flow of the fluid to be infused to be accurately preset by the operator.  The control system pro-vides an alarm function in the event of malfunction of the pump or occlusion of the tubing of the administration set, and a minimum pumping rate for maintaining fluid flow through the system after the desired volume of fluid has been infused. Novel power supply circuitry within the control system renders the system immune to power line transients, and a novel bubble detector circuit provides for more reliable detection of air bubbles in the tubing.  A mechanical linkage between the pressure plate and downline flow restriction plunger of the metering apparatus provides for convenient loading of the administration set and for automatic closure of the plunger prior to use.
Patent CA-1117171-A (CA)
Inventor: JANOTIK ADAM M
IPC: H02K31/00
Filed: 1978-11-15
Granted: 1982-01-26
Abstract: ELECTRIC VEHICLE DRIVE TRAIN HAVING UNIPOLAR MOTOR             ABSTRACT           An electric vehicle drive train having a unipolar motor connected between a DC source of electrical energy and a differential or other mechanism for turning the wheels of an electric vehicle.  The DC source consists of a low-voltage battery or thermoelectric generator which has first and second electrodes,  One of the electrodes is the container of the DC source and the other source electrode is connected to a control member forming a part of the unipolar motor.          The unipolar motor is positioned within a recess of the DC source container and is in electrical contact therewith so that current flows from the control member of the motor, through the motor's internal structure, and into the motor housing portion attached to the container.  This provides a very compact electric vehicle drive train with the DC source located as close as possible to the unipolar motor.  Preferably the motor is vertically positioned between the DC source located above it and the vehicle differential located beneath it.
Patent CA-1107518-A (CA)
Inventor: SMITH BRACE C
IPC: F23R3/32
Filed: 1978-12-07
Granted: 1981-08-25
Abstract: Fuel Vaporizing Tube Abstract A combustor for gas turbines has fuel vapor-izing tubes and associated mechanisms.  The vaporizing tubes are constructed to maintain uniform temperatures therein and the structure also maintains uniform tempera-tures in the head plate and splash plate of the com-bustor.  The vaporizing tubes have a direction of vapor discharge disposed at an angle from the axis of the tube stem to direct the vapor stream to the side away from the stem base to minimize formation of localized hot spots and prevent head plate and/or splash plate damage.  The interior of the vaporizer tubes are smoothly flow con-toured to eliminate eddies and flow losses and thereby prevent localized hot spots therewithin.  The vapor tubes have non-uniform wall thickness serving to prevent areas of carbon build-up and localized hot spots.  The splash plates are designed to act with respect to the dis-charge flow and reduce the total temperature spread in the head plate and splash plate.  The splash plate configura-tion shields the head plate from the hot vapor discharge from the tubes.
Patent CA-1103390-A (CA)
Inventor: MURRAY JAMES G
IPC: C08F299/04
Filed: 1979-01-18
Granted: 1981-06-16
Abstract: POLYESTER RESIN BLEND                            ABSTRACT                   Polyesters are blended with a polymerizable mixture of the isomers of methyl styrene which has a high content of the para isomer.
Patent CA-1104482-A (CA)
Inventor: KARRIP ALEXANDER A
IPC: A47C1/024
Filed: 1979-02-16
Granted: 1981-07-07
Abstract: POSTURE IRON WITH SAFETY STOP               ABSTRACT OF THE DISCLOSURE         The specification discloses a chair control in which a generally upright back support member is pivotally mounted to a support arm extending rearwardly from beneath a seat support member, there being a releasable securing means for securing or allowing adjustment of the angle of the back support member relative to the support arm.  The releasable securing means passes through adjacent bottom walls in the back support member and the support arm.  The support arm includes an integrally formed safety stop detent flange which prevents the back rest from falling all the way rear-wardly in the event that the releasable securing means in-advertently disengages.
Patent CA-1144295-A (CA)
Inventor: WEI CHUNG H
IPC: C08F2/24
Filed: 1979-05-10
Granted: 1983-04-05
Abstract: HOMOGENIZER PROCESS FOR FORMING  EMULSION/SUSPENSION POLYMERS       Abstract of the Disclosure An improved process is disclosed for forming polymeric materials by a multistep, emulsion/suspension polymerization procedure.  The improvement comprises using homogenization to disperse the monomeric reactants during the initial emulsion polymerization portion or portions of the multistep polymerization reaction to thereby reduce the amount of emulsifier that would be present for poten-tial emulsifier-suspending agent interference during the later suspension polymerization portion or portions of the process.  This improvement yields a cleaner reaction.