baber/WOPTO huggingface dataset:
Patent CA-1152618-A (CA)
Inventor: CHERN MAO-JIN
IPC: G02F1/1337
Filed: 1979-10-26
Granted: 1983-08-23
Abstract: 915,178 ABSTRACT         The invention provides displays containing guest host liquid crystal compositions with positive images, i.e., colored images on colorless background.  Cell members are formed of which the first member orients the guest-host contents of the cell in two directions in a predetermined pattern and the second member orients the contents in at least one direction approximately that of one of the directions of the first member.
Patent CA-1120325-A (CA)
Inventor: SCHACHT ROY A
IPC: B41F17/14
Filed: 1979-10-30
Granted: 1982-03-23
Abstract: FEED MECHANISM FOR MARKING MACHINE          Abstract A marking  machine for marking metal nameplates, tags or the like.  The marking machine employs a work table supported on a carriage which is moveable into contact with a marking wheel to perform a printing operation.  Improved advancing means are provided for the work table utilizing a feed pawl link having a pair of pivot points.  One pivot point is connected to a feed link while the second pivot point is connected to a drag link moveable between upper and lower stops in a carriage casting.  A bottom pivot point of the drag link is provided with a friction clutch on a pivot connected otherwise to a stationery portion of the machine.  An improved feed rack is further provided which is polygonal in cross-section and may have different spaced teeth on each side for selective spacing.          Half-spacing adjustment means are provided whereby the feed rack may be moved axially a half-space to change the spacing on the work table.  An improved carriage release is further provided which comprises a control member pivoted on the same pivot as the pivotable feed link and engageable with the feed link to cause the feed pawl to move both of its teeth out of engagement with the feed rack to provide for manual movement of the work table as desired.
Patent CA-1148334-A (CA)
Inventor: BEESTERMOELLER WINFRIED
IPC: C07D303/04
Filed: 1979-11-19
Granted: 1983-06-21
Abstract: ABSTRACT There is disclosed a method for protecting installations in which ethylene oxide is produced or processed, from ethylene-oxide disintegration. Disintegration barriers are incorporated into the pipelines immediately before all large-volume containers and apparatuses, thus isolating the apparatuses from each other.  In the event of a breakdown, the disintegration barriers may be cooled internally.  Small-volume apparatuses and pipelines are designed to withstand pressure shock.  In the event of danger, the whole installation is rendered inert, starting with the large-volume apparatuses which cannot be operated continuously in the inert condition.  The use of the invention increases very considerably the operational safety of ethylene-oxide installations.
Patent CA-1146886-A (CA)
Inventor: HIRATA TADASHI
IPC: C07D463/00
Filed: 1980-02-07
Granted: 1983-05-24
Abstract: ABSTRACT OF THE DISCLOSURE             Optically acitve cephalosporin analogs are produced by optically selective deacylation of an op-tically inactive acylated analog.  The compounds are useful as intermediates in the preparation of optically active acylated antimicrobial agents.
Patent CA-1107041-A (CA)
Inventor: NIJMAN JOHN P
IPC: H02G1/14
Filed: 1980-02-15
Granted: 1981-08-18
Abstract: ABSTRACT OF THE DISCLOSURE           This invention relates to solderless electrical connections, and is particularly concerned with insulation-opening electrical connections and a tool for making a crimped-insulation-opening electrical connection.  Although prior insulation-opening connections provide a good electrical and mechanical connection, it has been found that in certain in-stances, a loosening effect of the connection may occur.  This is particularly a problem with stranded conductors which undergo distortion during insertion and which have a clamping pressure applied thereto by the insulation-opening contact elements.          The subsequent application of tensile forces, axially and/or transversely, to the conductors held by such pressure causes a relaxation type of deformation and strand movement and re-positioning so as to effect a drop in connection pressure.  Of course, this condition is highly undesirable and should be eliminated.   According to the present invention, a tool is provided for inserting an insulated conductor into an insulating piercing portion of an electrical contact.  The portion has an outwardly open notch for receiving a conductor transversely of the axis of the conductor and a wall portion adjacent the notch.  The tool comprises a conductor insertion member for engaging and pressing an insulated conductor into the notch, and crimping means connected to the insertion member for en-gaging and crimping a section of the wall portion over the conductor and close at least a portion of the notch.
Patent CA-1131243-A (CA)
Title: Low molecular weight isocyanato-acrylate  copolymers
Inventor: SIMMS JOHN A
IPC: C08G18/00
Filed: 1980-02-28
Granted: 1982-09-07
Abstract: ABSTRACT OF THE DISCLOSURE           Isocyanatoethyl methacrylate/acrylate (or other vinyl monomer) copolymer of controlled low molecular weight are produced by copolymerizing the monomers with initiators, usually peroxides, at temperature above 120°C.   The copoly-mers are particularly useful as curing agents for urethane coating compositions.
Patent CA-1095089-A (CA)
Inventor: PISTORIUS RUDOLF
IPC: C07C41/00
Filed: 1980-03-24
Granted: 1981-02-03
Abstract: ABSTRACT OF THE DISCLOSURE         This application is directed to a process for the preparation of a hydroquinone dialkyl ether of the formula   wherein each R represents a primary or secondary C1-4 alkyl radical in which a diketal of the formula II'                II' wherein R is as defined above, is acidified and heated to a temperature of from 60 to 120°C.  These compounds are useful intermediates in the preparation of dyestuffs.
Patent CA-1176345-A (CA)
Inventor: SALASMAA EERO
IPC: G01K7/24
Filed: 1980-03-28
Granted: 1984-10-16
Abstract: ABSTRACT OF THE DISCLOSURE         The invention provides a control arrangement for a humidity detector, the operation of which is based on a change of impedance of the detector, the detector being electrically heated under the control of said arrangement by means of a heating resistance to a temperature (Ts) which is higher than the ambient temperature (Ta) of the detector with a view to improving the accuracy of measurement of the detector or to increasing its life, said control arrangement comprising a bridge circuit or equiva-lent containing temperature-dependent resistance elements responsive to said ambient temperature (Ta) and said detector temperature (Ts), an error voltage of said bridge circuit being used as a feedback signal for controlling the electric heating of the detector,said heating resistance for the detector comprising a resistance element with a positive temperature coefficient which at the same time serves as a sensor of the detector's temperature, and said temperature-dependent resistance element responsive to said ambient temperature(Ta) comprising a resistor/ thermistor assembly enabling a function Ts = f(Ta) peculiar to each detector type to be realized with the aid of the control arrangement.
Patent CA-1144242-A (CA)
Inventor: YOSHIDA TOSHIO
IPC: B23K15/00
Filed: 1980-05-21
Granted: 1983-04-05
Abstract: ABSTRACT OF THE DISCLOSURE    A steel blank is placed in intimate contact along a joint interface with a blank of another metal, and the two blanks are welded along and throughout the interface by a superhigh-output electron beam thereby to obtain a metal-lurgical welded joint and to form an integral blank which is rolled or otherwise formed into a clad steel article.
Patent CA-1172991-A (CA)
Inventor: BIDDULPH RICHARD H
IPC: C25C3/08
Filed: 1980-06-30
Granted: 1984-08-21
Abstract: A B S T R A C T     Alumina reduction cells are used to prepare aluminium metal by the electrolytic reduction of alumina dissolved in mol (?) cryolite.  The molten aluminium formed collects at the bottom of the cell.          When the cell floor serves as cathode and is of carbon, the molten aluminium does not wet the carbon making it necessary to increase the inter-electrode distance and reducing efficiency.         The invention provides a cell wherein a floor cathode comprises a carbon substrate having an adherent surface layer of electrodeposited titanium diboride which is readily wettable by molten aluminium and which makes possible considerable savings in the expense of running the cell.  The titanium diboride layer can be formed in situ in the cell or can be formed outside the cell on carbonaceous elements which are subsequent installed in the cell.
Patent CA-1129398-A (CA)
Title: PROCESS FOR POLYMERIZING AN .alpha.-OLEFIN
Inventor: SAKURAI HISAYA
IPC: C08F4/76
Filed: 1980-08-11
Granted: 1982-08-10
Abstract: ABSTRACT OF THE DISCLOSURE A process for polymerizing an .alpha.-olefin comprising contacting the olefin in liquid phase at a temperature of about 120 to about 320°C with a catalyst comprising a component (A) and an organometal component (B), the component (A) being produced by reacting a hydrocarbon-soluble organiomagnesium component (i) of the formula,   wherein .alpha., p, q, r and s each independently is 0 or a number greater than 0, t is a number greater than 0, p + q + r + s = m.alpha. + 2, 0 ? (r + s)/(.alpha. + 1) < 2, m is the valence of M, M is a metal of the 1st to 3rd groups of the Periodic Table, R1 and R2 each independently is a hydrocarbon group having 1 to 20 carbon atoms, X1 and x2 each independently is a hydrogen atom, a halogen atom or an organic electronegative group containing O, N or S, D is an electron donor, with (ii) a halide of boron, silicon, germanium, tin, phosphorus, antimony, bismuth or zinc, and contacting the product of (i) + (ii) with (iii) a compound of titanium and/or a compound of vanadium at a concentra-tion of titanium plus vanadium of at moat about 2 mols per liter of the inert reaction solvent, the atomic ratio of Mg/(Ti + V) in (A) being about 3 to about 500.
Patent CA-1142037-A (CA)
Inventor: PEMBERTON ERNEST H
IPC: B07C5/12
Filed: 1980-08-18
Granted: 1983-03-01
Abstract: Form 233                                          14894 ABSTRACT OF THE DISCLOSURE           Apparatus is described which is used in conjunction with an indexing bottle-handling system which will move glass containers or bottles in succession through a series of test positions spaced around the periphery thereof.  One of the positions is the location where the plug and air warp gauge is fixed.  This mechanism in detail is the subject of this disclosure. The plug and air warp gauge takes the form of an elongated vertically, reciprocated gauging head which is mechanically driven under the influence of a rotating cam.          The gauging head seats on the finish of the container with an annular head that seals the finish of the container if the surface is capable of receiving a closure and being sealed thereby.  Coaxially within the annular head is positioned a plug which has a diameter such that it will pass through the unchoked neck of a bottle.  The plug is attached to the lower end of a tube which is coaxially positioned within a larger tube.  The larger tube is raised and lowered mechanically and when in its uppermost position will support the plug-carrying tube.  When the larger tube is lowered, the plug tube also is lowered.  The lower end of the larger tube is in the form of an annular piston which will move downward within a cylinder that seats on the bottle finish.  As the annular piston moves down, it will pressurize the inside of the bottle and the cylinder if the seal with the finish of the bottle is good.  After the arrival of the larger tube at its lowest position, both the pressure generated in the bottle and cylinder and the position of the plug tube are observed for determining the presence or absence of a defective bottle.
Patent CA-1143418-A (CA)
Inventor: STEVENSON JAMES F
IPC: C03B5/027
Filed: 1980-08-21
Granted: 1983-03-22
Abstract: ELECTRICALLY HEATED GLASS FOREHEARTH                   ABSTRACT OF DISCLOSURE         The forehearth provides a channel for the flow of molten glass from a tank type furnace to a feeder bowl or the like in order to feed gobs of glass to one of several glassware forming machines provided with glass from a single furnace tank.  The forehearth channel has sets of electrodes arranged in each of three discrete zones along the forehearth channel, with the center electrode being at a predetermined and con-trolled potential with respect to electrodes located at the upstream and downstream ends of each zone.  The electrode associated with the downstream end of one zone is also used as the upstream electrode associated with the adjacent zone, and the glass is heated by virtue of the fact that these electrodes are immersed in the glass, with an A. C. single phase voltage being impressed thereon.  Individual transformers are provided for each of the zones, and controllers for the primary of each transformer operate in response to current sensed at the downstream end of each zone, the voltage at the secondary of each transformer, and also in response to a correction signal provided for each controller and derived from a glass level measuring device associated with the upstream end of the forehearth itself.
Patent CA-1133777-A (CA)
Inventor: TELKES MARIA
IPC: F24H7/00
Filed: 1980-09-10
Granted: 1982-10-19
Abstract: ABSTRACT OF THE DISCLOSURE           A forced air furnace includes a conventional fuel fired, primary heat exchanger and a secondary heat exchanger associated with the stack.  The secondary exchanger includes a phase change material having a transition temperature within the range of the stack temperature, and which is disposed in heat exchange relation with the flue gases flowing through the stack.  The secondary exchanger also includes duct means for conveying the circulated air in heat exchange relation with the phase change material; and the flow path through the secondary exchanger is an alternative path controlled by a damper.  When the primary exchanger is turned on, the phase change material in the secondary exchanger is charged from the flue gases of the primary exchanger.  When the phase change material is in condition to release stored heat, a temperature responsive control shuts off the primary exchanger and diverts the circulated air through the secondary exchanger.
Patent CA-1113808-A (CA)
Inventor: SZLOBODA DAVID TIBOR
IPC: F02D19/06
Filed: 1980-09-25
Granted: 1981-12-08
Abstract: Abstract Of The Disclosure A self regulating and balancing gas valve is located in a fuel supplu line between a gaseous fuel storage container and the intake manifold of a fuel burning engine. The valve includes a diaphragm which defines one wall of a chamber into which a gas inlet leads out from which a gas outlet leads.  An accelerator pedal controlled valve is positioned in the outlet, for controlling suction and the flow rate of gaseous fuel from the chamber in response to the position of the accelerator pedal.  An inlet valve means is provided to control the flow of gaseous fuel through the inlet into the chamber.  This valve means includes a control means interconnected between the diaphragm and the inlet valve means, operable to open or increase the size of the inlet in response to inward movement of the diaphragm and to decrease or close the inlet in response to outward movement of the diaphragm. The metered gaseous fuel is delivered into the intake manifold closely adjacent to where the fuel mixture from the gasoline carburator discharges into the manifold. The gaseous fuel contacts incoming air at this location and mixes with it in the intake manifold.
Patent CA-1143695-A (CA)
Title: Procede et dispositif pour la suppression des  perturbations magnetiques dans les cuves  d'electrolyse a tres haute intensite placees en  travers
Inventor: HOMSI PIERRE
IPC: C25C3/16
Filed: 1980-11-06
Granted: 1983-03-29
Abstract: L'invention concerne un procédé et un dispositif pour la suppression des perturbations magnétiques dans les séries de cuves d'électrolyse ignée, pour la production d'aluminium, disposées en travers par rapport à l'axe de la série, fonctionnant sous des intensités allant de 200.000 à 300.000 Ampères. Ce procédé consiste à extraire un courant cathodique par une pluralité d'éléments conducteurs scellés dans les blocs cathodiques et sortant verticalement par le fond du caisson, et à dériver de 30 à 54 % du courant cathodique total dans des conducteurs de liaison disposés, sur au moins une partie de leur trajet, à l'extérieur des deux plans verticaux passant par les extrémités du système anodique.
Patent CA-1164724-A (CA)
Inventor: AHLSTROM LARS G
IPC: F41G3/14
Filed: 1980-12-18
Granted: 1984-04-03
Abstract: ABSTRACT           A method and a firing system for combatting a target by firing of explosive projectiles having homing devices or proximity fuses operating with reception of electromagnetic energy. In order to achieve an increased accuracy of aim with use of simple control circuits the homing devices and the proximity fuses, respectively are made passive, i.e. purely receiving, and with regular intervals in the burst of fire a transmitting projectile is fired, which illuminates the target with electromag-netic energy.
Patent CA-1156864-A (CA)
Inventor: LINDAHL JONAS A I
IPC: D21B1/14
Filed: 1981-03-25
Granted: 1983-11-15
Abstract: PROCESSING OF GROUNDWOOD PULP TO REMOTE COARSE PARTICULATE LIGNOCELLULOSIC MATERIAL AND APPARATUS            ABSTRACT OF THE DISCLOSURE     Coarse wood residues, slivers and shives present in groundwood pulp as obtained in grinders are removed by passing a uniform flow of the pulp suspension containing coarse wood residues and shives from the grinder to a conical crushing and beating apparatus having two treatment zones with a stationary part and a rotary part for reducing all wood material present in the suspension to free fibers, while measuring and controlling the freeness of the pulp within selected limits by controlling both the power input to the crushing and beating apparatus and the degree of beating of the pulp, obtaining groundwood pulp having a low shives content and superior strength properties, at a low energy consumption.
Patent CA-1184470-A (CA)
Title: Procede de preparation de microemulsions entre une  phase acide et une phase hydrophobe
Inventor: TELLIER JACQUES
IPC: C09K8/74
Filed: 1981-04-16
Granted: 1985-03-26
Abstract: La présente invention a pour objet un procédé de préparation d'une microémulsion thermodynamiquement stable, entre une phase d'acide fort et une phase d'hydrocarbure, une de ces phases étant sous la forme de gouttelettes de 0,005 à 0,2 micron, la phase d'acide étant l'acide fort lui-même ou une solution aqueuse d'acide fort à au moins 15%, le procédé comprenant le mélange de la phase d'hydrocarbure avec celle d'acide, avec un tensio-actif cationique de sel d'ammonium quaternaire et un alcool en tant que co-tensio-actif, de telle manière que la quantité d'acide dans la microémulsion résultante soit de 3 à 32,2% en poids et que le rapport pondéral du co-tensio-actif au tensio-actif soit de 0,48 à 2. Ce procédé permet l'obtention soit de microémulsion d'acide dispersé dans l'huile en équilibre avec une phase acide, soit de microémulsion d'huile dans l'acide en équilibre avec une phase organique, soit de microémulsion en équilibre simultané avec la phase organique et la phase acide. Application du procédé dans de nombreux domaines: acidification ménagée, stimulation des puits de production de pétrole, fracturation, extraction liquide-liquide des cations métalliques en hydrométallurgie, réactions chimiques (sulfonation, sulfatation, catalyse protonique).
Patent CA-1147165-A (CA)
Inventor: ARKANS EDWARD J
IPC: A61F5/058
Filed: 1981-04-23
Granted: 1983-05-31
Abstract: PRESSURE MEASUREMENT APPARATUS AND METHOD                 ABSTRACT OF THE DISCLOSURE      A method of determining the pressure applied to a limb by an inflatable garment by placing a flexible pressurizable cuff between the garment and the limb to receive the compressive garment forces and then determining the pressure in the cuff due to those compressive forces alone.  The cuff pressure component due to compression of the garment is determined by extrapolating from a plot of cuff pressure versus bias pressure.  The bias pressure is required to obtain an accurate reading of cuff pressure and is eliminated as a component in determining the gar-ment pressure by means of the extrapolation.  A preferred trans-ducer for converting cuff pressure to electrical signals employs a manometer tube extending between two plates of a capacitor.
Patent CA-1155164-A (CA)
Inventor: SUMIYOSHI HIROJI
IPC: H01J29/87
Filed: 1981-05-07
Granted: 1983-10-11
Abstract: ABSTRACT OF THE DISCLOSURE            An improved cathode ray tube consisting of a panel member coated on its inner surface with a phosphor layer, and having a funnel member and a neck member with an electron gun-mounted therein in which an image is formed on the phosphor layer by an electron beam emitted from the electron gun and comprising fittings located at the corners of the panel member with a tension band tightened to the panel member over the fittings with each of the fittings having first portions substantially parallel to the tubular axis of the cathode ray tube and second portions extending from the first portion and extending in the direction perpendicular to the tubular axis of the tube to form a substantially L-shaped member in cross-section.  The first portion has curved surfaces which conform with a peripheral wall surface of the cathode ray tube at its top end portions and indented portions which distribute bearing stresses of a tension band uniformly over the tube to eliminate problems arising during explosion.