baber/WOPTO huggingface dataset:
Patent CA-1137240-A (CA)
Inventor: DAABOUL FOUAD
IPC: G10L25/00
Filed: 1980-09-09
Granted: 1982-12-07
Abstract: METHOD OF AND APPARATUS FOR ECHO DETECTION               IN VOICE CHANNEL SIGNALS            Abstract of the Disclosure To detect echoes on a transmit path of signals on a receive path, an echo detector  stores averages of the signals on the receive path each for a period equal to or just greater than the maximum end delay for received signals to reach the transmit path, and determines the greatest magnitude of the stored signals.  This greatest magnitude, reduced by the worst case echo return loss, is compared with the current signal average on the transmit path, and an echo decision is produced in dependence upon this comparison and a detection of speech signals on each of the transmit and receive paths.  The echo detector is particularly useful in a digital speech interpolation transmission system.                             - i -
Patent CA-1151682-A (CA)
Inventor: MASSER LLOYD D
IPC: B60G11/113
Filed: 1980-09-17
Granted: 1983-08-09
Abstract: TANDEM SPRING SUSPENSION WITH LEAF ROTATION STOP                ABSTRACT OF THE DISCLOSURE    A leaf spring suspension assembly for a truck or trailer includes a plurality of leaf springs arranged in a vertical relationship.  The leaf springs are mounted to a vehicle through a trunnion assembly which permits for flexure of the ends of the springs to which wheels are attached.  The ends of the leaf springs are mounted in an axle connection comprising a housing.  The lower leaf of the leaf spring assembly is seated against a base plate of the axle connection and is re-strained against movement relative thereto by pairs of pins or bosses disposed between the spring and the base plate.          Bosses or pins are also disposed between adjacent springs of the leaf spring assembly to restrain longitudinal movement therebetween.  In this way, pivoting of the ends of the leaf springs relative to the axle is minimized which reduces the stressing on the springs as well as the axle connection during turning or braking of the vehicle.  Additionally, the double pin or boss arrangement provides a means for retaining the leaf springs within the housing.  In an alternate embodi-ment, the center portions of the leaf springs are provided with pairs of bosses which prevent fanning or spreading of the leaves.
Patent CA-1133963-A (CA)
Title: Fitting
Inventor: NARKON NORMAN W
IPC: F16L43/00
Filed: 1980-10-10
Granted: 1982-10-19
Abstract: FITTING                ABSTRACT OF THE DISCLOSURE      This invention relates to fittings for a pipe adapted for interconnecting a gas turbine engine and its fuel control where the fitting has a swivel connection for simple angular alignment and a friction plate locking the fitting and characterized as having a low profile, a simple two-bolt connection and good sealing.
Patent CA-1146102-A (CA)
Inventor: BICHSEL STANLEY E
IPC: C13K11/00
Filed: 1980-10-10
Granted: 1983-05-10
Abstract: ABSTRACT OF THE DISCLOSURE               In the disclosed process for obtaining fructose solutions of solid fructose, a raw material containing sucrose and/of similar fructofuranosides is hydrolyzed to fructose and glucose and treated with a calcium base (e.g. calcium oxide of hydroxide) to precipitate calcium sugar complexes, The precipitate is slurried in water and then treated with phosphoric acid to liberate (e.g. at a pH of 5.5 to 9) a fructose solution of high purity (i.e. de-complex the calcium-fructose complex), with precipitation of useful calcium phosphate salt. Phosphoric acid has been found to have significant advantages over carbonic acid of carbon dioxide as the fructose-liberating (de-complexing) agents, e.g. better yields and more useful by-products. solid fructose can be obtained from the fructose solution in a known manner. The filtrate from the calcium sugar complexing step can be acidified to yield stable, useful, fructose-depleted by-products.
Patent CA-1143133-A (CA)
Inventor: VOIGT CARL
IPC: C01B39/22
Filed: 1980-11-21
Granted: 1983-03-22
Abstract: ABSTRACT OF THE DISCLOSURE         To reduce the ammonia content in the product gas in the BMA process and thus to improve the yield the reaction gas mixture of this process is contacted with zeolites and the ammonia sub-sequently desorbed from the zoelites is preferably reused in the reaction stage.  If the desorption is carried out with a scavenging gas similar to the hydrocarbon used in the reaction, then this mixture can be recycled directly to the BMA reactor.  The amounts of ammonia heretofore lost from this process are thus utilized again in the process.
Patent CA-1155262-A (CA)
Inventor: GRASS ALFRED
IPC: E05D3/00
Filed: 1980-11-21
Granted: 1983-10-18
Abstract: -- A DOOR HINGE WITH A FORCE PRODUCING UNIT --Abstract A door hinge for furniture is made up of a box-like part designed to be let into the door from its back side and which has a spring-powered bolt for acting on a cam face at the end of an L-like support arm which is fixed to the body of a piece of furniture so that one (or two) at position(s) where the cam face has a hollow, the bolt will be responsible for a detent effect to keep the door in a shut position or in shut and opened positions. The L-like supprot arm is fixed to the body of the piece of furniture by way of a base or fixing plate, having a guiding face with keyways for taking up at least one key on the support arm. The key has a wedging face and is responsible for guiding the support arm parallel to itself on changing the height of the arm. The arm is locked on the base plate in po-sition in normal use by a metal screw.       For limiting opening motion of the door, the hinge box has a limiting or stop face designed to come up against a face on the support arm.
Patent CA-1171316-A (CA)
Inventor: CORNET JEAN
IPC: G11B7/243
Filed: 1981-01-21
Granted: 1984-07-24
Abstract: THERMO-OPTIC INFORMATION WRITING PROCESS AND INFORMATION SUPPORT FOR          IMPLEMENTING THIS PROCESS     ABSTRACT OF THE DISCLOSURE     The invention relates to thermo-optic writing on an information support comprising a substrate on which there is deposited an organic sub-layer covered by a metal layer. The invention provides a writing process which consists in creating in the metal layer a plastic deformation due to the thrust exerted by the localized swelling of the sub-layer.  The writing produces a relief im-pression without piercing of said metal layer.
Patent CA-1135195-A (CA)
Inventor: BERKNER HORST D
IPC: F01D9/04
Filed: 1981-03-20
Granted: 1982-11-09
Abstract: ABSTRACT OF THE DISCLOSURE A nozzle of a gas turbine engine includes an array of radially extending guide vanes fixedly supported at their tip portions to an outer shroud, while the root portion of each vane is connected to a segment of a radially inner, segmented shroud.  Each segment is, in turn, connected via a slip fit inter-connection to a radially inner ring sup-port structure of generally L-shaped configuration.  A spring extends between the segment and the base of the L-shaped ring support for forming a flexible coupling be-tween the inner ring and the segment, while the remaining portion of the ring support structure defines a pressure dam to reduce leakage through the flexible coupling connec-tion.  The segmented nozzle construction effectively re-duces stress levels resulting from differential thermal excursions of the components of the nozzle under transient and steady state operation of the engine, while also mini-mizing leakage through the flexible coupling.
Patent CA-1174518-A (CA)
Inventor: JUNGHANS RUDI
IPC: B41F31/14
Filed: 1981-07-16
Granted: 1984-09-18
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to an apparatus for axially reciprocating friction rolls in the inking-system of a printing press, using an eccentric drive, by means of thurst rods (44) and control-levers (36,39) mounted upon the frame (24) of the machine and providing a wear-resistant drive with little play for the reciprocating motion of the friction rolls (7-10), the said drive being also applicable under restricted space conditions.
Patent CA-1175417-A (CA)
Inventor: CURRAN WILLIAM V
IPC: A61K31/545
Filed: 1981-07-27
Granted: 1984-10-02
Abstract: ABSTRACT OF THE DISCLOSURE This invention concerns novel cephalosporin compounds which may be represented by the formula:       wherein R is selected from the group consisting of hydrogen and R'-O-CO wherein R' is a lower alkyl (Cl-C6).  The compounds are useful antibacterial agents.
Patent CA-1196792-A (CA)
Inventor: ROUSSEAU RAYMOND
IPC: E05B19/06
Filed: 1981-08-05
Granted: 1985-11-19
Abstract: ABSTRACT OF THE DISCLOSURE     A Bramah or pin lock.     The invention relates to a lock with pins mobile in translation and in rotation about their longitudinal axes.   The pins (30) housed into cylindrical passages (44) of a cylinder (15) are brought by the studs (28) and the key bits (29) of a key (26) in positions such that their cut-outs (71, 72) are in alignment with a passage annular path formed in a blocking fixed crown (19). In said position, the pins (30) allow the rotation of cylinder (15) inside body (10).   The invention applies to pin or Bramah locks.
Patent CA-1122945-A (CA)
Inventor: KROENING GERALD E
IPC: B02C1/10
Filed: 1981-08-11
Granted: 1982-05-04
Abstract: ABSTRACT         A swing jaw for a crusher includes a body mounting a movable wear member. The swing jaw is located in the crusher by way of first and second suspension assemblies respectively positioned proximate an upper and a lower area of the body.          The second suspension assembly includes a toggle plate seat support member formed from non-rectangular material.  The structure is economical to produce while still providing the necessary strength for the required effectiveness.
Patent CA-1167372-A (CA)
Inventor: FERTL WALTER H
IPC: E21B47/10
Filed: 1981-08-26
Granted: 1984-05-15
Abstract: METHOD FOR MONITORING FLOOD FRONT  MOVEMENT DURING WATER FLOODING   OF SUBSURFACE FORMATIONS  Abstract of the Disclosure A method is disclosed for monitoring the flood front movement during enhanced recovery operations wherein flooding fluids are pumped into a number of injection wells forcing residual oil movement toward a production well.  A plurality of monitoring wells located between the injection wells and the producing well are logged to establish base logs func-tionally related to oil saturation and water salinity.  Period-ically during the water flood operation, the monitoring wells are relogged to detect changes in oil saturation and water salinity.  By comparison of the base logs with the series of later derived logs it is possible to accurately monitor the flood front movement including detecting high-permeability zones and monitoring of the flood front profile.
Patent CA-1169758-A (CA)
Inventor: FISH DAVID W
IPC: E21B34/12
Filed: 1981-10-13
Granted: 1984-06-26
Abstract: CEMENT RETAINER AND SETTING TOOL ASSEMBLY            Abstract of the Disclosure A well tool assembly comprising a drillable cement retainer and setting tool includes a connection between a setting-tool mandrel and a retainer mandrel allowing for opening and closing of a cement valve in the retainer without disconnecting the setting tool from the retainer.  A releasable locking mechanism in the connection keeps a tubular connector between the setting-tool mandrel and the retainer mandrel locked against sliding relative to one of the mandrels prior to deploying an upper slip set of the cement retainer.  Additionally, a carrier in the setting tool includes radially resilient lugs connected between the setting-tool mandrel and a retaining sleeve for the upper slip set for sliding upwardly on the setting-tool mandrel to carry the sleeve into an upper position releasing the upper slip set for deployment.  A set lock in the retainer holds the retainer mandrel against movement downwardly once the retainer is anchored in the well.
Patent CA-1172720-A (CA)
Inventor: DUQUESNE JEAN F
IPC: H04L12/56
Filed: 1981-12-24
Granted: 1984-08-14
Abstract: ABSTRACT OF THE DISCLOSURE     Multiservice packet telecommunication network. It comprises a plurality of subscriber's staions each having a plurality of digital data sources and digital data receivers and data switching networks connected to said stations and therebetween through incoming and outgoing data links. The data are formed in packets having an infor-mation field, an address field  and a start word and end word field. The address field is fulfilled by a plurality of operations to be controlled in the packet switching networks along the packet route. Each address is cleared when the switching operation which it de-fines is achieved. The switching operations are made in real time due to the lay out of equipments inserted in the incoming channels to the switching networks.
Patent CA-1174039-A (CA)
Title: Ultrafine sheath-core composite fibers and composite sheets made thereof
Inventor: OKAMOTO MIYOSHI
IPC: D04H1/645
Filed: 1982-01-18
Granted: 1984-09-11
Abstract: ABSTRACT OF DISCLOSURE    Improved  ultrafine sheath-core   composite   fibers   and composite sheets composed of these fibers are disclosed.   The composite fibers have a fineness of 0.0001 to 0.5 denier and comprises 10 to 70 % of the core having a very high intrinsic viscosity within a specific range and being located at the center of  the  sheath ant  90  to 30  %  of  the  sheath composed of  a polyester copolymerized 1.5 to 8 mole %, based on the total acid component, of 5-sodium(or lithium or potassium) sulfoisophthalte and having a thickness of  0.04  to  2 microns.   The  composite fibers have a high strength and are dyeable with a cationic dye.          When the composite fibers are combined with a elastic material such  as  polyurethane,  suede-like  artificial  leathers  having excellent  softness, touch, feel and colour can be obtained.
Patent CA-1191815-A (CA)
Inventor: BRENNECKE PETER
IPC: C25B11/06
Filed: 1982-02-26
Granted: 1985-08-13
Abstract: 'HIGHLY POROUS ELECTRODES HOT PRESSED FROM NICKEL POWDER FOR ALKALINE WATER ELECTROLYSERS' ABSTRACT OF THE DISCLOSURE            The invention concerns a highly porous electrode of special construction and hot-pressed or sintered from nickel powder with the addition of a catalyst and a method for its manufacture.          The electrode is characterised by catalytic promotion and long term stabilisation by means of an addition of Ti and/or the formation of a surface layer of a stable mixed Ni-Ti oxide so that, when it is used for the electrolysis of water in alkaline electrolytes, the production of the gases of electrolysis takes place with the lowest possible polarisation even at high current densities and that it retains its catalytic properties even at high temperatures of the electrolyte or during long times of operation.  Because of its favourable properties, the use of the electrode is not limited to water electrolysis technology but is also possible in other technical fields of application such as, for example, the electrolysis of alkali chlorides or the hardening of fats.  The electrode can be used both as an anode and a cathode.
Patent CA-1184801-A (CA)
Inventor: HONEGGER HEINZ
IPC: E01C11/12
Filed: 1982-03-24
Granted: 1985-04-02
Abstract: ABSTRACT OF THE DISCLOSURE    A sealed span across an expansion joint in a roadway.  The gap is subdivided into narrower gaps by means of several parallel rails that extend longitudinally and each of these is sealed by means of expansion strips that are secured to the rails.  Each rail rests upon its own cross piece to which it is rigidly attached, whereas the other rails cross over these with some free play.  A control system that is located beneath the cross pieces in the expansion gap insures that when the expansion joint grows wider or narrower the rails divide the resulting gap into equal sub-gaps.  The control device includes a control arm that traverses the gap diagonally.  One end of this control arm is connected by means of a connector around a pin that is secured vertically to the gap wall in such a manner as to permit a swinging or pivoting movement.  The other end of the control arm is in a like manner secured so as to permit a swinging motion and additionally a displacement motion in the connector to the opposite wall.  On the control arm there are connectors that can be moved on the control arm, each of these being connected by means of a vertical trunnion to a cross piece.  The control system constructed in this way can be assembled without any free play so that when the expansion joint is crossed there is no associated rattling noise.  In addition, such an expansion joint permits a displacement and distortion of the constructional elements without seizing.
Patent CA-1175212-A (CA)
Inventor: CONNETT PETER
IPC: E04C1/40
Filed: 1982-03-30
Granted: 1984-10-02
Abstract: (12835A) (15.3.82)                 ABSTRACT        PRODUCTION OF BLOCKS, BRICKS AND TILES. A method of manufacturing a thermally insulated building block (54a) comprises foaming a quantity of foamable plastics material in an enclosed space (56) between a building block (54) and a closure means (52), the quantity of material being sufficient to fill the enclosed space (56).  The foamable material may be injected into a cavity in the block onto an outer surface of the block (54) or onto the closure means (52) prior to locating the block (543 and closure means (52) relative to each other to form the enclosed space (56) therebetween.  The block (54) is transported between upper and lower parallel endless belts (55, 50) during foaming and either belt (55, 50) may provide the closure means (52).  If the lower belt (50)provides the closure means (52) the upper belt (55) maintains the block (54) in contact with the closure means (52) during foaming.
Patent CA-1165111-A (CA)
Inventor: ISHIZUKA HIROSHI
IPC: C22B34/12
Filed: 1982-04-27
Granted: 1984-04-10
Abstract: VACUUM SEPARATOR            ABSTRACT OF THE DISCLOSURE      In a vacuum separator for refractory metal from magnesium metal and magnesium chloride mixed therewith, comprising:  a vertically elongated substantially cylindri-cal retort having, inside, a closed space, a lower section of which is capable of accomodating such mixture to be treated as held in a container and is provided with a heat-ing means to evaporate the magnesium metal and magnesium chloride to a substantial part, and an upper section of which has a cooling means to provide, inside, a cylindrical face for condensing thereon magnesium metal and magnesium chloride which ascend as vapor, and a means for degassing the retort to an elevated level of vacuum, an improvement such that a heat shield unit is provided at an intermediate level between said upper and lower sections of the retort, said heat shield unit comprising, as a whole, opening so arranged as to block any direct sight of the surface of the retort lower section when holding the container from a substantial part of the condensation face in the upper section, thus intercepting a substantial part of primary heat radiation from the retort lower section, while allow-ing passage of ascending vapor.
Patent CA-1171832-A (CA)
Inventor: WELP EWALD G
IPC: B65H18/16
Filed: 1982-05-04
Granted: 1984-07-31
Abstract: Abstract of the Disclosure The invention relates to a method for the centreless winding of a strip of material on two parallel carrier rolls of different diameters, the axis of the smaller of these rolls lying in a horizontal plane above or below the horizontal plane in which the axis of the larger roll lies.  In order to keep the hardness of the roll of material uniform across its diameter, and to be able to lower or raise the level as required, the unit is operated with specific pivot-angles of the smaller carrier roll in relation to the large carrier roll, dependent upon the desired maximal diameter of the roll of material.
Patent CA-1185493-A (CA)
Inventor: HAMMOND CHARLES W
IPC: F23J3/02
Filed: 1982-05-13
Granted: 1985-04-16
Abstract: ABSTRACT OF THE DISCLOSURE       Roller-type supporting means is disclosed herein for the lance tube of a long retracting sootblower.  An assembly of four rollers is mounted in a cradle structure rockable about an axis transverse to the beam of the sootblower and also swingable about a vertical axis radial to the lance tube axis.  The sides of the cradle structure are defined by rocker arms capable of limited independent rocking movement.  The rollers are laterally and longitu-dinally spaced from each other and underengage and support the lance tube.  The points of engagement between the rollers and the lance tube lie in a common plane which also includes said transverse axis.
Patent CA-1191406-A (CA)
Inventor: TUVAL MIRON
IPC: F24V30/00
Filed: 1982-08-09
Granted: 1985-08-06
Abstract: Abstract Subterranean generation of heat as a source of energy optionally accompanied by the production of minerals.  In subterranean formations of minerals that, are capable of undergoing an enthalpic degradation, such degradation is artificially accelerated by several orders of magnitude.  To this end a bore hole is drilled down to the desired formation and accelerated enthalpic degradation is made to occur by a suitable ignition.  For the extraction of energy the bore hole is flushed with water and the resulting steam is withdrawn.  In one embodiment, one and the same bore hole is used for charging water and withdrawing steam.  In another embodiment the bore holes are arranged pairwise, one bore hole of each pair serving for ignition and introduction of water and the other serves for the withdrawal of steam.         After the formation has cooled down to the point where steam is no longer generated to any significant extent it is possible to continue with flushing and subjecting the reemerging aqueous phase to an operation or sequence of operations for the recovery of minerals therefrom.
Patent CA-1174939-A (CA)
Title: Stowable fire suppression system for aircraft cabins  and the like
Inventor: BRUENSICKE WILHELM A
IPC: B64D45/00
Filed: 1982-11-23
Granted: 1984-09-25
Abstract: Stowable Fire Suppression System for Aircraft Cabins and The Like Abstract The conventional potable water distribution system (310, 318) or other water supply system conventionally provided in passenger aircraft and other large passenger vehicles such as boats and trains may be modified to provide a convenient source of water under high pressure (300, 302) for fire suppression purposes. A mobile cart (10) that can be conveniently stowed inside the passenger area is provided with a source of foaming agent (132, 134), a mixing nozzle (148), and the required valves and hoses (128, 142, 150). A plurality of pressurized water outlets may be located throughout the passenger area. The cart's water inlet hose (128) is provided with a suitable quick connect/disconnect fitting (130). In order to provide the greatest versatility and effectiveness, the mixing nozzle (148) is provided with a convenient control (168) whereby the operator may choose between a heavy mist of plain water, a relatively dense foam, or a relatively light foam. As a result, it is possible to provide more effective fire suppression than if it were necessary to equip a number of individual fire fighting stations within the cabin. Furthermore, since the cart utilizes an existing supply of water (310), a substantial quantity of water is made available for emergency use at no additional cost or weight penalty.
Patent CA-1183734-A (CA)
Title: Process and compositions for lithographic printing in   multiple layers
Inventor: GANHO ELI A
IPC: B41M3/14
Filed: 1983-02-09
Granted: 1985-03-12
Abstract: ABSTRACT     Printed materials such as tickets, lottery forms, cards and contest forms, bearing a hidden message which is revealable by the consumer scratching off a covering opaque layer, are prepared by lithographing a varnish layer over the hidden message, and then lithographing a hiding coat over the applied varnish layer.  The varnish formulation and the hiding coat layer are both based upon compatible, preferably the same, film forming resin systems, and are deposited from a common solvent.