baber/WOPTO huggingface dataset:
Patent CA-1091422-A (CA)
Inventor: RIKKER LESLIE D
IPC: B22C5/04
Filed: 1977-10-13
Granted: 1980-12-16
Abstract: Abstract of the Disclosure A program controlled customized method for making molds comprises the steps of dispensing a layer of molding material including a mixture of sand and binder over a mold forming pattern by means of relative movement between a dis-pensing device and the pattern while selectively varying the ratio of sand and binder in the mixture dispensed in prede-termined areas of the pattern or in successive layers to pro-vide a mold of the desired strength in certain critical areas while conserving the amount of binder needed for the com-pleted mold.           Apparatus of the invention  includes a dispenser for mixing and discharging layers of the molding material onto the mold forming pattern, and means for producing selectively controlled relative movement between the dispenser and the pattern including a control system for varying the ratio of sand and binder in the mixture being dispensed in accordance with the relative position of the dispenser and the pattern. The apparatus may thus be controlled to provide for selective-ly variable ratios of sand and binder in accordance with the strength required of the mold at a particular position.  The system also provides a selectively variable control of the thickness of each layer of molding material as the mixing head or pattern moves on a three axis coordinate system.   For relatively small and light castings the mixing and dispensed head may be retained in a relatively fixed position while the pattern is selectively moved in a three axis coordinate grid while with large castings, the pattern is stationary and the mixing head is moved.  The mixing and dispensing head is par-ticularly designed for use in the field of "no-bake" sand-resin-catalyst mixing and includes facilities for controlling the mixing operation so that the mixture does not set up and harden in the mixing head between mixing operations.   Also, the constituency of  successive layers may be varied and the amount of organic binder material minimized so as to reduce smoke and fumes during the casting operation.
Patent CA-1088038-A (CA)
Inventor: PEIRISH ALFRED J JR
IPC: B60Q1/26
Filed: 1977-08-31
Granted: 1980-10-21
Abstract: VISUAL WARNING APPARATUS FOR      EMERGENCY VEHICLES     ABSTRACT OF THE DISCLOSURE       A visual warning apparatus of the type used on police and fire department and other emergency vehicles in which a reflector is positioned relative to a rotating signal light so when the light rotates, light rays de-flected off the reflector will extend forwardly of the vehicle while producing a lateral shifting of the light rays. The reflector comprises a plurality of convex sections which produce a highly active light signal.
Patent CA-1099276-A (CA)
Inventor: WELCH CLARK M
IPC: C07C53/10
Filed: 1977-10-13
Granted: 1981-04-14
Abstract: ABSTRACT OF THE DISCLOSURE:             Bacteriostatic, water-insoluble complexes of zirconyl acetate with inorganic peroxides are disclosed.  Peroxides operative in forming these complexes are hydrogen peroxide, alkali metal perborates and alkali metal peroxydiphosphates.  The inso-luble complexes of the invention are used to form deposits on the surfaces of cellulosic textiles.  The textile finishes so produced inhibit the growth and spreading or odor- and infection-producing gram-negative and gram-positive bacteria on the treated textiles.  The antibacterial activity imparted to the textiles is durable to repeated laundering.
Patent CA-1109192-A (CA)
Title: Compositions de bitumes contenant des polymeres
Inventor: HAGENBACH GERMAIN
IPC: C08L95/00
Filed: 1977-10-06
Granted: 1981-09-15
Abstract: L'invention concerne de nouvelles compositions de bitumes aux caractéristiques rhéologiques améliorées.  Les compositions sont caractérisées par leur constitution: - 90 à 99,9 % en poids d'un bitume de point de ramollissement compris entre 20 et 120.degree.C, - 0,1 à 10 % en poids d'un polymère du norbornène de masse moléculaire moyenne en poids comprise entre 1000000 et 3000000.  Les compositions de l'invention sont notamment utilisables comme enduits superficiels pour revêtement routier.
Patent CA-1037595-A (CA)
Inventor: FOSTER GENE B
IPC: G05B19/12
Filed: 1977-11-04
Granted: 1978-08-29
Abstract: MULTIPLANAR SENSOR AND CONTROL SYSTEM    FOR USE IN ROLL FORMING MACHINES                  ABSTRACT OF THE DISCLOSURE A multiplanar sensing structure and control system therefor suitable for use in a numerically controlled roll forming machine are disclosed.  The multiplanar sensing structure includes a support arrangement for mounting a multiplanar sensor in a position such that a work part exiting from contour forming rollers passes through the structure. The support arrangement is formed such that the sensor is free to move in two planes but is prevented from rotating about its longitudinal axis.  The multiplanar sensor includes a cylindrical housing gimballed end plates movable in two orthogonal planes.  In addition, the end plates are rotatable and include orifices corresponding to the cross section of the part being contour formed.   As the work part passes through the orifices, the curvature of the part causes the end plates to change position. The change in position of the end plates is sensed by rotary variable-differential transformers (RVDTs).  The output from the RVDTs are compared with signals related to the desired curvature of the part and the result of the comaprison is used to modify the signals applied to the numerically controlled contour forming machine to provide compansation for part springback.
Patent CA-1092748-A (CA)
Title: Fibers, filter rods and other nonwoven articles made from poly(1,2-propylene terephthalate) copolyesters of terephthalic acid, 1,2-propylene glycol and ethylene glycol
Inventor: MORIE GERALD P
IPC: C08G63/183
Filed: 1977-11-08
Granted: 1980-12-30
Abstract: Abstract of the Disclosure This invention concerns fibers of amorphous polyesters of terephthalic acid or an ester forming derivatives thereof and from about 60 mole percent to 100 mole percent 1,2-propylene glycol and from 0 to about 40 mole percent ethylene glycol.  These fibers are useful for the production of bonded coherent cigarette filters, nonwoven fabrics and the like.
Patent CA-1062401-A (CA)
Inventor: HIMMELRICH LEW
IPC: A41D3/00
Filed: 1977-11-22
Granted: 1979-09-18
Abstract: ABSTRACT OF THE DISCLOSURE     A utility coat having a body portion with a central vertical front opening and engageable about the torso of a wearer, and a belt fixed to and extending about the exterior of said body portion and engageable about the midriff of the wearer's torso, said belt having flexible free end portions adjacent opposite sides of said opening.  A pair of elongate flexible crotch straps are provided within said body portion, said straps having rear ends fixed to the belt at opposite rear quarters thereof and having front end portions with belt engaging loops.  The front and rear end portions of said straps are releasably secured together within said body portion rearward of the wearer's torso when not in use, the front ends being releasable and movable under the wearer's crotch with the ends of the belt extending through the loops on the straps, whereby belt and straps establish a seating harness for the wearer.  Means are provided to releasably couple the free ends of the belt together and with a descent control device which is stored in a pocket in the coat.
Patent CA-1075747-A (CA)
Inventor: CASTONGUAY ROGER N
IPC: H01H9/22
Filed: 1977-12-09
Granted: 1980-04-15
Abstract: ABSTRACT           A door interlock includes first and second, normally inter-coupled  plates mounted to a circuit breaker for sliding movement between respective first and second positions.  The first plate includes an aperture through which a circuit breaker trip push-button normally extends, thereby sustaining the plates in their first positions where the second plate serves as a catch for the door of the breaker enclosure. Upon depression of the trip push-button the breaker is tripped and the plates may be conjunctively slid to their second positions where the first plate  sustains the depressed condition of the pushbutton to ensure that the breaker is open, while the second plate clears the enclosure door such that it can be opened. If desired, the intercoupling between the plates may be defeated, such that the second plate can be slid to its second position independently of the first plate, and the door may be opened while the circuit breaker is closed. The first plate can also be padlocked in a. third position where it is effective to sus-tain depression of the trip pushbutton and inhibit opening of the enclosure door.
Patent CA-1099908-A (CA)
Title: Prevention des venues d'eau dans les puits deja fores  ou en cours de forage
Inventor: VIO LINO
IPC: C09K8/512
Filed: 1977-12-29
Granted: 1981-04-28
Abstract: La prévention des venues d'eau dans les puits déjà forés ou en cours de forage est réalisée au moyen d'un gel aqueux de polyacrylamide non hydrolysé, formé par réticulation in situ d'une solution aqueuse de ce polyacrylamide avec un dialdéhyde.  Selon l'invention, on utilise un polyacrylamide présentant une masse molaire d'au moins 2 000 000, le pH de la solution, au moment de la réticulation, étant d'au moins 6,5; la concentration en polyacrylamide et le rapport molaire dialdéhyde/amide sont choisis de façon à ce que la durée de la réticulation donnant un gel élastique soit d'au moins 6 heures. On arrive à un colmatage progressif de la zone productrice d'eau, le gel formé étant stable avec le temps et ne subissant pas de synérèse.
Patent CA-1091820-A (CA)
Inventor: MCBRIDE THOMAS R
IPC: A61B6/03
Filed: 1978-03-09
Granted: 1980-12-16
Abstract: DATA CHANNEL MULTIPLEXING SYSTEM FOR    CT SCANNER WITH ROTATING SOURCE               Abstract of the Disclosure A CT scanner has an outer circular array of stationary radiation detectors for an inner concentrically revolving source of radiation emitted in a fan pattern subtending a number of the detectors.  A number of analog signal processing channels equal to the maximum number of subtended detectors at any given time is automatically connected via switching circuitry to receive the outputs of only the detectors within the fan pattern.
Patent CA-1084019-A (CA)
Inventor: WHITEHEAD THOMAS W
IPC: B04B5/02
Filed: 1978-05-05
Granted: 1980-08-19
Abstract: ABSTRACT OF THE DISCLOSURE      A peripheral band is used as a load-containment device in a high-capacity, swinging bucket centrifuge rotor.  The peripheral band is concavo-convex in radial cross-section such that the mid portion of the band is thinner than the edge portions to provide increased structural strength and reduced wind resistance.  The rotor includes a hub and a shaped disc-like piece of sheet metal which forms the bottom of the rotor and inter-connects the rotor hub with the peripheral band.  The rotor bottom supports the band against gravity.  The swinging buckets themselves are mounted on pivots secured to the band.  In this manner, the available volume of the inside of the rotor cavity is increased.
Patent CA-1095244-A (CA)
Inventor: OSBORNE TURNER E
IPC: B60R21/26
Filed: 1978-06-19
Granted: 1981-02-10
Abstract: SOLID PROPELLANT GAS GENERATOR     Abstract of the Disclosure A gas generator includes an annular hermetically sealed combustion chamber containing a charge of propellant and an initiator.  The combustion chamber is enclosed within a circular inner housing having peripherally spaced groups of openings.  Disposed radially of each group of openings is a roll of filter screen wrapped about a central neutralizer core.  An outer housing includes two members, each member having three spaced circular emboss-ments.  The embossments open to each other and define circular enclosures when the housing members are abutted.          One enclosure encapsulates the combustion chamber and inner housing.  The other enclosures encapsulate respective rolls of filter screen.  The embossments of the housing members are interconnected by grooves which open to each other and define passages connecting the enclosures when the members are abutted.  Additional grooves in the members define passages connecting the screen enclosures with an article to be inflated.
Patent CA-1108750-A (CA)
Inventor: IIJIMA YUKIHIKO
IPC: G06T9/00
Filed: 1978-07-25
Granted: 1981-09-08
Abstract: Abstract A high speed predictive encoding and decoding system for the frequency band compression of television video signals can use low-speed inexpensive circuit elements instead of high-speed elements conventionally used.  This is because for every cycle of logic operations needed for the predictive encoding two video sampling periods are provided.  The transmitter portion of the transmission link includes an analoque/digital converter for digitizing a video signal to provide a series of digitized video codewords. Two successive segments of the codeword series are stored temporarily segment by segment in a pair of memories and the codewords of one segment are inter-leaved with those of an immediately neighbouring segment.  The interleaved codewords are predictively encoded to provide a series of codewords representative of the predictive encoding output alternately of the neighbouring segments.  The receiver incorporates an appropriate decoding system.
Patent CA-1103050-A (CA)
Inventor: BULICH ANTHONY A
IPC: G01N33/18
Filed: 1978-09-22
Granted: 1981-06-16
Abstract: Abstract One or more strains of luminous microorganisms are used as biological indicators in the detection of toxic substances or conditions in liquids.  When exposed to toxic substances or conditions, the change in light output is sensed by light sensing apparatus.  The amount of change in light output of the micro-organisms is related to the concentration of toxic substance to which the organisms have been exposed.  The cells are grown in a variety of ways and lyophilized cells, which have a long storage life, can be reconstituted and used in detection of toxic sub-stances in accordance with the invention without further pro-pagation.
Patent CA-1124781-A (CA)
Title: Control circuit for discharging the field  winding of a synchronous motor
Inventor: MURDOCH JAMES C
IPC: H02P1/50
Filed: 1978-10-31
Granted: 1982-06-01
Abstract: Case 2549 ABSTRACT OF THE DISCLOSURE           This invention relates to a control circuit for a rotor field winding of a synchronous motor.  During motor acceleration at start-up, the rotor winding is discharged through a pair of thyristors connected in series across the rotor field winding.  A varistor and a resistor are also connected in series across the rotor field winding and the junction between the varistor and resistor is connected by separate paths to each thyristor gate.  As the voltage in the field winding increases, the varistor-resistor combination will conduct more current.  When the voltage drop across the varistor reaches a first level it is suffi-cient to fire one thyristor.  A zener diode in the path to the gate of the other thyristor blocks firing of that thyristor until the voltage across the varistor rises above the breakdown voltage of the zener, then the other thyristor fires.  When both thyristors are fired or gated on they discharge the rotor winding.  It was previously necessary to arrange for successive firing of the thyristors by using a pair of zeners whose breakdown voltage was selected by trial and error to ensure sequential firing at desired voltages.  The present invention eliminates the need for selecting these matched but mismatched zeners and the related expense.
Patent CA-1088791-A (CA)
Inventor: ERICSSON ERIC O
IPC: D21C9/06
Filed: 1978-11-01
Granted: 1980-11-04
Abstract: ABSTRACT        A horizontal, Fourdrinier foraminous belt type, countercurrent, high-capacity, cellulose pulp washer is described. The described washer is equipped with a hood positioned over a portion of the belt and over vacuum boxes or receptacles under the upper loop of the belt. The gases and vapors drawn into the vacuum boxes or receptacles with the wash liquid are separated from the liquid in the receptacles and recycled to the hood to control the atmosphere in the hood and maintain the desired pressure differential for operation of the washer.
Patent CA-1141893-A (CA)
Inventor: INAGAKI HAJIME
IPC: C08F8/34
Filed: 1978-11-08
Granted: 1983-02-22
Abstract: ABSTRACT OF THE DISCLOSURE           A sulfobetaine-modified olefinic copolymer useful as an antistatic agent for synthetic polymeric materials, which comprises an olefinic copolymer having a number average molecular weight of about 500 to about 100,000 derived from a major proportion of an .alpha.-olefin having 2 to 6 carbon atoms and a minor proportion of a comonomer selected from the group consisting of un-saturated carboxylic acids containing 3 to 12 carbon atoms, functional derivatives of said unsaturated carboxylic acids unsaturated esters of carboxylic acids containing 4 to 12 carbon atoms and unsaturated amines containing 3 to 9 carbon atoms, and chemically bound to the co-monomer-derived moiety of said olefinic copolymer, a sulfobetaine group of the formula   wherein R1, R2, R3, R3, X and Y are defined in the spe-cification; and a process for preparation thereof.
Patent CA-1137363-A (CA)
Inventor: KASAHARA NOBUYOSHI
IPC: C09D5/36
Filed: 1979-01-08
Granted: 1982-12-14
Abstract: METALLIC ARTICLES HAYING NACREOUS APPEARANCE     Abstract of the disclosure:         A process for the production of a metallic article having semi-bright or matt nacreous appearance, comprising the steps of coating a metallic substrate with a clear paint comprising a curable resin vehicle and a nacreous pigment selected from oxides and salts of elements of Groups IV and V of the Periodic Table, to form on the metallic substrate a clear paint coating in which the nacreous pigment is arranged in substantially lamellar or undulated form, and then curing the paint coating on the metallic substrate thereby to produce the metallic article.  In one embodiment, the metallic substrate may preferably be chemically treated to form a corrosion-resistant film thereon prior to coating with the clear paint.
Patent CA-1107657-A (CA)
Inventor: KUZUMOTO HIDESHI
IPC: B01D53/22
Filed: 1979-01-10
Granted: 1981-08-25
Abstract: Abstract of the Disclosure The specification discloses a hollow fiber package body for separation of fluid components comprising a core and layers of hollow fibers having a selective perme-ability to the fluid components arranged around said core, said hollow fiber layers being formed by tape-like bundles of hollow fibers and composed of hollow fibers in nearly parallel relation to one another and in a flat state, and said hollow fiber bundles being arranged in multi-layers intersecting at a spot between one end and the other end of said package body.  The apparatus has good separating ability and can be used for gas permeation, liquid permeation, dialysis, ultra filtration and the like.
Patent CA-1102839-A (CA)
Inventor: SMITH DONALD C
IPC: B65G47/14
Filed: 1979-02-09
Granted: 1981-06-09
Abstract: DONALD CLIFFORD SMITH AUTOMATIC FEEDING HOPPER     Abstract of the Disclosure An automatic feeding hopper employs a reservoir for storing disk-like objects in a plurality of substantially horizontal rows in a substantially vertical plane.  A conveyor adjoins the reser-voir for engagement with a substantial portion of the lowermost row of disk-like objects in the reservoir to remove the disk-like objects from the reservoir, an exit chute is positioned adjacent the conveyor to receive the disk-like objects in a single row, and a deflecting member is positioned near the entrance to the exit chute to guide and maintain the flow of disk-like objects in a single row from the conveyor into the exit chute.  The deflecting member has an upper concavely curved surface inter-sected by a lower curved surface which leads into a side of the-exit chute, the curved surfaces meeting at an edge located a distance above the surface of the conveyor slightly more than the diameter of a disk-like object.  Magnetic means is positioned with respect to the reservoir and related to the deflecting member and the conveyor to remove disk-like objects above the lowermost row of objects, and means is provided for rotating the magnetic means.
Patent CA-1152014-A (CA)
Inventor: HILLMAN JEFFREY D
IPC: A61K6/00
Filed: 1979-02-23
Granted: 1983-08-16
Abstract: LACTATE DEHYDROGENASE MUTANTS OF STREPTOCOCCUS MUTANS            ABSTRACT OF THE DISCLOSURE Mutant strains have been isolated from Streptococcus mutans strain BHT-2(str) which are characterized by a single point mutation in the struc-tural gene for the enzyme, L(+) lactate dehydrogenase, this enzyme being normally responsible for lactic acid production by this bacterium.  Strepto-coccus mutans is believed to be a principal pathogen in dental caries, a disease characterized by the dissolution of the mineral portion of the tooth caused by acid resulting from the interaction of bacteria on the tooth surface with carbohydrates.  The mutant strains of the invention will be found useful as prototype nonvirulent effector strains in controlling the incidence and severity of dental caries.
Patent CA-1085379-A (CA)
Inventor: KENNINGTON KERRY S
IPC: E21B10/18
Filed: 1979-02-27
Granted: 1980-09-09
Abstract: Abstract of the Disclosure Disclosed herein is a large diameter earth boring bit with improved nozzle placement.  The bit is of the type having a cutter support with several rotatable cutters mounted below.  The bit is connected to a string of pipe having an input and a return flow passage.  Nozzles are located on the cutter support for the discharge of fluid onto  the borehole bottom to sweep cuttings into an intake port in the cutter support. An outer zone nozzle is located at the periphery of the cutter support for cleaning the gage area of the borehole.           Several inner zone nozzles are spaced between the periphery and the intake port.  The inner zone nozzles are positioned so that the area of influence of each nozzle overlaps with its next inward nozzle.  This creates a continuous stream that entrains cuttings and sweeps them to the intake.
Patent CA-1105334-A (CA)
Inventor: BAILLIEVIER FREDDY
IPC: D07B3/02
Filed: 1979-03-12
Granted: 1981-07-21
Abstract: IMPROVEMENTS IN OR RELATING TO REINFORCING CORDS          Abstract of the Disclosure The invention relates to metal reinforcing cords for the reinforcement of articles made of elastomeric material. The cords include bundles of grouped filaments, the direc-tion of lay of the filaments in the bundles being the same as that of the bundles in the cord.  All of the filaments are subjected to plastic torsional deformation and the average length of lay of each bundle in the cord is equal to the average length of lay of each filament in the bundles.  The filaments forming the core of the cord at any cross-section belong to one or to different bundles and are varied along the cord by filaments belonging to the same or different bundles.  The resulting cord has high resistance to internal abrasion and a low tendency to untwist when cut.
Patent CA-1120767-A (CA)
Inventor: BORRELLI NICHOLAS F
IPC: G03C7/02
Filed: 1979-04-02
Granted: 1982-03-30
Abstract: Borrelli-Young 11-6 PHOTOSENSITIVE MEDIUM FOR OPTICAL INFORMATION STORAGE                 Abstract of the Disclosure A photosensitive medium for storing optical information relating to the intensity and polarization of incident light, consisting of an inorganic multilayer film comprising multiple thin layers of silver chloride to which additive coloration has been imparted by chemical means, is described.