baber/WOPTO huggingface dataset:
Patent CA-1170960-A (CA)
Inventor: HEUSS VALENTIN
IPC: F03B13/26
Filed: 1982-09-14
Granted: 1984-07-17
Abstract: Attorney's Docket 7061 INVENTORS:  VALENTIN HEUSS and HELMUT MILLER          INVENTION:  TIDAL POWER PLANT                   ABSTRACT OF THE DISCLOSURE           A tidal power plant and method of operating the same are disclosed.  In tidal power plants the turbines are arranged in channels between the sea and a storage reservoir.   Heretofore known constructions of tidal power plants included relatively complex mechanisms for maintaining the turbine or turbines operating for the maximum amount of time, but generally they have failed to exceed a high overall operating efficiency.  The present invention seeks to improve upon prior installations by designing a tidal power plant in which the or each turbine is disposed in a main channel between the sea and the storage reservoir.  A connection channel is arranged above the main channel containing the turbine. A shutoff device is located at the reservoir side of the turbine and the connec-tion channel to control and direct the flow of water.  One of the described arrangements permits the use of a single shutoff device in the form of a sluice gate operable under pressure in order to open the connection channel and to cut-off the turbine,  or vice-versa.   A further possible arrangement contemplates total isolation of the working region of the tidal power plant to permit inspection and maintenance work when needed.
Patent CA-1183409-A (CA)
Inventor: HOWARD PETER B
IPC: C09C1/36
Filed: 1982-10-26
Granted: 1985-03-05
Abstract: ABSTRACT          IMPROVED PIGMENTS AND THEIR PREPARATION      Titanium dioxide pigment of improved durability in paints comprises a particulate core of rutile titanium dioxide having an inner coating on the core of an oxide or hydrous oxide of zirconium, and a coating of dense amorphous silica on the inner coating.  The pigment optionally has an outer coating of a hydrous oxide of aluminium.         The pigments contain the oxide or hydrous oxide of zirconium in an amount of up to 5% expressed as ZrO2 and an amount of dense amorphous silica of up to 12% by weight expressed as S1O2 on the weight of TiO2. The pigments when incorporated in paints have extremely high durability.
Patent CA-1217093-A (CA)
Inventor: BLAND GERALD F
IPC: F02B61/04
Filed: 1982-11-30
Granted: 1987-01-27
Abstract: ABSTRACT OF THE DISCLOSURE        The outboard motor includes a powerhead shroud defining an engine compartment for an internal combustion engine and a vent and drain assembly for ventilating the engine compartment to the atmosphere and for draining liquids, such as water, from the engine compartment.  The vent and drain assembly includes a valve member movably disposed in an aperture at a low point in the bottom wall of the powerhead shroud opening the engine compartment to the atmosphere.  The valve member includes a domed portion which extends through the aperture and defines a cavity for entrapped air and an annular sealing flange which is located exteriorly of the shroud bottom wall.  The valve member is held by gravity in an open position wherein the sealing flange is displaced outwardly from the shroud bottom wall for ventilation and draining and is moved to a closed position wherein the sealing flange is in sealing engagement with the shroud bottom wall in response to a rise in the water level above the shroud bottom wall.
Patent CA-1205869-A (CA)
Inventor: MIZUKAWA TAKUMI
IPC: H05B6/06
Filed: 1982-12-23
Granted: 1986-06-10
Abstract: ABSTRACT     This invention relates to an induction heating device making use of a bridge inverter and comprising a DC power source, a plurality of switching elements (6) and (7) forming a bridge inverter, and a circuit for detecting the turn-off of the switching elements (6) and (7).       Generally, in the bridge inverter, because of the turn-off time of the switching elements (6) and (7), there is always the danger of the elements being simultaneously rendered conductive and thereby damaged.  This invention eliminates this danger and greatly improves the reliabil-ity of the device.  In the concrete, in order to detect the turn-off of the switching elements (6) and (7), an improved turn-off detection circuit is employed and an improved control circuit is installed to prevent the circuit from malfunctioning owing to external noise.
Patent CA-1198260-A (CA)
Inventor: GUARDINI GIULIANO
IPC: C14C3/32
Filed: 1983-01-14
Granted: 1985-12-24
Abstract: ABSTRACT OF THE DISCLOSURE           There is described a process for extraction of pro-tein and chromium from tannery wastes.  These wastes are made up of hide shavings, hide trimmings and green split skins, which are the wastes of chrome  tanned hides.  Through the process of the present invention there is obtained high purity proteinaceous hydrolyzates, practically free from chromium, and basic chromium sulphate which can be reused in the tanning industry.  The process comprises the steps of washing and mechanically grinding the wastes, alkaline chemical hydrolysis, separation of the iron filings and vacuum filtration of the suspension to separate the soluble polypeptides from the insoluble chromium hydroxide, which are then subjected to separate purification processes.
Patent CA-1190451-A (CA)
Title: Composition pour la dispersion d'hydrocarbures dans  l'eau
Inventor: VANLERBERGHE GUY
IPC: C02F1/68
Filed: 1983-02-25
Granted: 1985-07-16
Abstract: L'invention concerne une composition pour la dispersion d'hydrocarbures dans l'eau, constituée par un mélange d'au moins un agent tensioactif avec un solvant organique ou/et avec de l'eau, caractérisée en ce que ce mélange renferme 20 à 80% en poids de composé tensioactif répondant à la formule < IMG > (1) où R désigne un groupe hydrocarboné pouvant porter des substituants, T un groupe ou chaîne portant au moins un hydroxyle, et n un nombre de 1 à 30, le poids de solvant constitue 0 à 80% du mélange, celui de l'eau étant de 0 à 60%. Cette composition est notamment utile à la dispersion d'hydrocarbures répandus sur des surfaces d'eau, des rochers, des plages, ou présents dans des récipients ayant contenu du pétrole.
Patent CA-1195026-A (CA)
Inventor: HALPER WALTER M
IPC: C08L63/10
Filed: 1983-04-25
Granted: 1985-10-08
Abstract: A B S T R A C T                         MOULDING COMPOSITIONS      The present invention is concerned with a moulding composition having improved surface appearance and impact strength and comprising an unsaturated, crosslinkable thermosetting  resin, an ethylenicallly unsaturated monomer, a reinforcing agent and/or a filler and a normally solid, carboxy-containing styrene-butadiene block copolymer, prepared by contacting a monolithium terminated block copolymer with dry gaseous carbon dioxide at a temperature of from 20-100°C, a pressure of from 103-793 kPa (abs) and at a molar ratio of carbon dioxide added to lithium terminated block copolymer of from 0.75:1 to 3.0:1 and having a 1,2-vinyl content of from 30 to 40 mol percent.
Patent CA-1201787-A (CA)
Inventor: KROGH EGON
IPC: G01D5/245
Filed: 1983-05-12
Granted: 1986-03-11
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to an incremental digital converter for converting two phase-displaced position signals of a pulse generator which represent the position and direction of an object moved in two opposite directions to a parameter representing the position digitally, comprising a reversible position counter and a signal generator which derives a direction signal determining the counting direction of the position counter and timing pulses to be counted by the position counter, has a flank detector deriving a timing pulse from each flank of the one position signal and a direction discriminator, to which the timing pulses of the flank detector on the one hand and the position signals on the other hand can be fed to produce the direction signal, and which has a flip-flop to which the one position signal can be fed.
Patent CA-1204081-A (CA)
Inventor: BURGESS CURTIS L
IPC: B03B13/00
Filed: 1983-05-27
Granted: 1986-05-06
Abstract: "SYSTEM FOR CONTROLLING SEPARATING GRAVITY            IN DENSE-MEDIA CYCLONE"     Abstract of the Disclosure This invention is directed to a method of beneficiating a material, such as coal, by subjecting the coal to be treated to the action of a dense-media cyclone, where the dense-media thereof is a slurry of magnetite in water.  More particularly, the present invention relates to a method to control the separating gravity of said cyclone within predetermined limits by (1) measuring the flow rate and percent magnetite in the flow discharging from the cyclone, and (2) based on pre-calibrated data, adjusting the feed flow and content, i.e. magnetite and/or water, into said cyclone, thereby controlling said separating gravity within predetermined limits.
Patent CA-1199920-A (CA)
Inventor: KREIDL JANOS
IPC: A61P9/00
Filed: 1983-06-29
Granted: 1986-01-28
Abstract: A b s t r a c t The invention relates to new racemic and optically active apovincaminic acid derivatives of the general formula (I) (I)   wherein A       is hydroxyl, halogen or a group -O-(CH2)n-OR1 or -OMe, in which Rl   is alkyl having from 1 to 6 carbon atoms, n    is an integer between 2 and 6, Me   is an alkali metal R2        stands for an alkyl group having from 1 to 6 carbon atoms which may be identical with or different from Rl, and the hydrogen in the 3-position and  the R2 group have an .alpha..alpha.,.alpha..alpha. and/or .beta.,.beta.- or .alpha..alpha.,.beta.- and/or .beta.,.alpha..alpha.- configu-ration, and pharmaceutically acceptable acid addition salts thereof, which are pharmaceutically active, e.g.     show antihypoxial activity or are potent peripheral vasodilators. Their preparation and pharmaoeutical composition containing them are also within the scope of tine invention.
Patent CA-1213682-A (CA)
Inventor: LUCCIO ALFREDO U
IPC: H05G2/00
Filed: 1983-09-02
Granted: 1986-11-04
Abstract: ABSTRACT OF THE DISCLOSURE         A method and apparatus for producing X-rays utili-zing the Compton backward scattering effect.  The X-rays are electronically steerable for scanning, and also have a very narrow angle of divergence for precise positioning.  The X-rays have a narrow bandwidth, and are tunable to permit an object to be irradiated with only the desired beneficial radiation.  The X-rays are polarized for trace element ana-lysis.  The X-rays are suitable for medical diagnostic and therapeutic, and industrial testing, purposes.
Patent CA-1238443-A (CA)
Inventor: NATIVI LARRY A
IPC: C08F299/06
Filed: 1983-10-20
Granted: 1988-06-21
Abstract: ABSTRACT OF THE DISCLOSURE      Ultraviolet curable polymerizable coating system having a built-in secondary curing mechanism is disclosed.  The polymerizable coating system is a one component system comprising at least one urethane-acrylate or methacrylate, an allyl-group containing acrylate or methacrylate monomer, a non-allylic acrylate or methacrylate, a polymerization initiator of the photo-initiator type, and a metal-drier.  The coating system is uv curable, and also possesses an additional cure mechanism.
Patent CA-1213639-A (CA)
Inventor: PEZZOLO DONALD E
IPC: H05B37/02
Filed: 1983-11-30
Granted: 1986-11-04
Abstract: ANTI-FLICKER CIRCUIT FOR AUTOMATIC         TURN-ON OF NIGHTLIGHT   Donald E. Pezzolo ABSTRACT      A second photoelectric element or cell (P2) is mounted in series with a first photoelectric element or cell (P1) of the prior art and in parallel with a portion of a voltage divider of which said first element is a part to shunt out a portion of the divider in response to light from a light load turned on by the operation of said first element incident to an increase in impedance thereof due to ambient darkness.  Addition of the second photoelectric cell results in hysteresis of the turn-on/turn-off operating points of the first cell to prevent flicker to the light which is present at or near dusk in lights controlled by the prior art circuits.  Mechanically, one cell (P1) is mounted on the side of a collar (21) surrounding the neck of a light bulb (13) outside direct light rays from the filament (23) while cell (P2) is mounted on the collar top in the direct path of light rays from the filament.
Patent CA-1206222-A (CA)
Inventor: MCGAFFIGAN THOMAS H
IPC: H01R13/193
Filed: 1983-12-09
Granted: 1986-06-17
Abstract: CONNECTING DEVICE                    ABSTRACT            A reusable heat-recoverable connecting device has an annular driver member and a circumferentially split annular spring biasing means inside and generally concentric with the driver member.  The spring biasing means exerts an outward radial force against the inside surface of the driver member. The driver member is made from a heat-recoverable metal having a martensitic state and an austenitic state.  The driver member is expanded radially outward by the spring biasing means when the driver member is in its martensitic state to facilitate insertion of a substrate.  The driver member recovers to its non-expanded dimension when it returns to its austenitic state to cause engagement between the spring biasing means and the inserted substrate.
Patent CA-1234346-A (CA)
Title: Method and apparatus for manufacturing security  strips
Inventor: KLINKHARDT ERHARD
IPC: B32B7/14
Filed: 1984-01-17
Granted: 1988-03-22
Abstract: ABSTRACT OF THE DISCLOSURE            Security strips containing magnetizable components, which are used, for example, to safeguard articles in stores, are manufactured by first applying to a continuous carrier band (11) which is moved progressively in fixed cycles and which has a double-sided adhesive film (11'), strip sections or elements (13') of a hard magnetic material which are spaced equally and which are fed from supply reels (12) and cut into lengths, or a continuous strip (13") of a hard magnetic material respectively, and then a continuous band (16) of a soft magnetic material and a continuous cover band (17) are drawn off simultaneously from supply reels (14 and 15), are laminated and then combined by means of a rolling process with the carrier hand (11) carrying the hard magnetic strip sections or elements (13' or 13") respectively, to form a security strip assembly (200); and thereafter the multilayer, continuous security strip assembly (200) is passed through a demagnetizing device (109) and is then wound onto a takeup reel (108).
Patent CA-1259724-A (CA)
Inventor: WARD IRL E
IPC: C08L83/04
Filed: 1984-01-25
Granted: 1989-09-19
Abstract: PELLICLE COMPOSITIONS AND PELLICLES THEREOF FOR PROJECTION PRINTING Abstract A pellicle for use in projection printing com-prises a pellicle in which the transparent film is formed from a polyvinyl butyral resin or from a casting composition which is a mixture of a polyvinyl butyral resin and a dispersion of colloidal silica and a sili-cone resin which is a lower aliphatic alcohol-water solution of the partial condensate of a silanol. A pellicle employing such films are useful in the near, mid and deep UV regions.
Patent CA-1215232-A (CA)
Inventor: SIPILA HEIKKI J
IPC: H01J47/06
Filed: 1984-01-26
Granted: 1986-12-16
Abstract: WAY TO PROLONG THE SERVICE LIFE OF PROPORTIONAL COUNTERS         Abstract of Disclosure The invention concerns a way to prolong the service life of pro-portional counters, there being added to the gas mixture con-sisting of a rare gas and a hydrocarbon, serving as gas filling in the counters, hydrogen gas in the amount of 0.05-5.0% by weight, preferably 0.1-2.0% by weight. In addition, the hydrogen gas may in part at least be deuterium.
Patent CA-1216504-A (CA)
Inventor: VAN BREUKELEN JACOBUS A T
IPC: B21D5/00
Filed: 1984-03-08
Granted: 1987-01-13
Abstract: A B S T R A C T            Device and method for bending corrugated plates.           Method for bending a corrugated plate about an axis extending transversally to the valleys and crests respectively, by applying said plate between two press beams the opposite faces of which are provided with mutually corresponding and also with the crests and valleys of the plate corresponding alternating raised portions and recesses, and by then bringing the press beams together so as to press inwardly directed ribs into the bottoms of the valleys and pressing outwardly directed bulges into the adjacent sidewalls of said valleys, in such a way that in the first stage, in which the plate as seen in the longitudinal direction of the crests and valleys is supported through a length which is a multiple of the width of the ribs to be formed, the bulges are pressed only, while the ribs are formed in the subsequent stage.     .   .    .
Patent CA-1247891-A (CA)
Inventor: DIXON RICHARD D
IPC: F16B19/10
Filed: 1984-04-06
Granted: 1989-01-03
Abstract: A B S T R A C T           A blind fastener including a pin and a sleeve and having grip compensating means for accommodating workpieces varying in total thickness and having means for expanding the sleeve for filling the clearance between the fastener and associated openings in the workpieces and at the same time providing material from the sleeve in the area of expansion to define a lock between the pin and the sleeve.  The grip compensating means is separate from the pin and is generally tubular in construction with a portion adapted to provide radial deformation.  The construction is such that the pin will travel the same amount regardless of whether the fastener is used in the minimum grip or maximum grip condition.  The fastener provides hole fill over an extended portion of its grip.  The excess of the material of the sleeve that is used to provide hole fill is used to provide the material for the internal lock between the pin and sleeve.  The lock material is provided for at least between one-third to around one-half of the pin travel, i.e. the distance over which the pin extruding land engages the reduced diameter hole filling sleeve bore.  This permits the use of a substantially wide lock groove.  The fact that the groove is wide results in an increase in effective shear area enhancing the lock between pin and sleeve.  The extruding land on the pin does not act as a stop and movement of the pin is arrested by an external means such as engagement of a tool with the leading face of the guide land on the pin.
Patent CA-1222554-A (CA)
Title: Method and apparatus for reporting dangerous  conditions
Inventor: TROUP ALAN P
IPC: G08B29/18
Filed: 1984-04-06
Granted: 1987-06-02
Abstract: Attorney's Docket 7337 CAN            INVENTORS:  ALAN PAUL TROUP et al INVENTION:  METHOD AND APPARATUS FOR REPORTING DANGEROUS            CONDITIONS                  ABSTRACT OF THE INVENTION             In an alarm system a central signal station periodically transmits interrogation signals, preferably in the form of  infrared radiation packets  to remotely  located detectors which transmit a response signal back to the central signal  station  after  differing  time  delays  that  are characteristic for the individual detectors and which permit the localization of the source of the response signal.  In an alarm state, the detectors respond to every interrogation signal, in the normal operational state to only every mth interrogation signal, i.e.  less often, and in a state of diminishing battery potential  to only  every  small  pth interrogation signal, i.e.  even less often.  The state of the individual detectors is determined from the frequency with which the response  signals are transmitted back by the detectors, that is the ratio of the response signals to the interrogation signals.     WWK:FR:rmw:mncl
Patent CA-1227050-A (CA)
Inventor: BEHNKE THOMAS L
IPC: F16C3/02
Filed: 1984-04-11
Granted: 1987-09-22
Abstract: AN ECCENTRIC SHAFT AND METHOD         OF MANUFACTURE             ABSTRACT OF THE DISCLOSURE        An elongate eccentric shaft formed from a cylindrical billet has cylindrical bearing sections at its opposite ends, a cylindrical center section, and cylindrical coupling sections outboard of and eccentric to the center section.  The cylindrical sections are of uniform diameter, the bearing and center sections have coincident longitudinal axes, and the longitudinal axes of the coupling sections are coincident with one another and offset from the axes of the other sections.  Adjacent each coupling section is an elliptical section having a major axis the length of which is no greater than the diameter of the cylindrical sections and a minor axis the length of which is less than that of the major axis by an amount corresponding to one-half the offset of the aforementioned longitudinal axes.
Patent CA-1203673-A (CA)
Inventor: GAUTREAUX MARCELIAN F
IPC: C01B6/24
Filed: 1984-04-16
Granted: 1986-04-29
Abstract: ABSTRACT          SYNTHESIS OF SODIUM ALUMINUM HYDRIDE        To improve reactor throughput and raw material utilization, the direct synthesis process for producing sodium aluminum tetrahydride is conducted in a semi-continuous manner whereby in at least one run (and preferably in each of a plurality of successive runs) the reaction is conducted (and preferably the respective reactions are conducted) to a stage at or before which the reaction rate would begin to significantly decrease due to consumption of the sodium.  At that stage at least a portion of the liquid reaction solution is separated from the unreacted aluminum and sodium to leave a highly active sodium- and aluminum-containing heel for use in initiating the ensuing run.  Preferably the aluminum used in at least some of the runs contains a reaction-promoting amount of another metal such as titanium.  Use of an ether reaction medium (which need not be pre-treated to remove small amounts of alcohols and/or water) is also preferred.  Sodium aluminum tetrahydride is a well-known chemical reducing agent.
Patent CA-1201767-A (CA)
Inventor: MINERS KAMAL E B
IPC: G01N33/00
Filed: 1984-05-07
Granted: 1986-03-11
Abstract: ABSTRACT     A portable gas analyzer is provided for detecting SF6 decomposition products in electrical equipment to signal a warning before decomposition reaches the stage that the presence of the decomposition products causes degradation of the solid insulating materials used in the construction of the SF6 equipment.  The forewarning of the decomposition products anticipates costly break-downs.  The portable gas analyzer is based on the prin-ciple of non-destructive testing wherein the surface sensitivity of selected insulating materials which decrease rapidly when exposed to increasing concentra-tions of SF6 decomposition products is measured.
Patent CA-1255138-A (CA)
Inventor: LETERME DOMINIQUE
IPC: G11B7/085
Filed: 1984-05-16
Granted: 1989-06-06
Abstract: ABSTRACT OF THE DISCLOSURE           An optical head is provided for an information carrier recording-reading device.          Such an optical head comprises a pivoting mirror for reflecting the light towards the data carrier.  According to the invention, this pivoting mirror is mounted on a pivoting seat having a sliding surface and resting on the sliding surface of the cradle shaped base.  Said mirror is mounted on the seat so that the center of curvature of the sliding surfaces is in the reflecting plane of the mirror. Adjustment of the orientation of the mirror is thus made easy.
Patent CA-1234656-A (CA)
Inventor: TROMMER KLAUS H
IPC: D06M13/165
Filed: 1984-06-19
Granted: 1988-04-05
Abstract: ABSTRACT OF THE DISCLOSURE          A process for producing hydrophilic nylon fabric is disclosed.  The process comprises treating nylon fibre in fabric form with a nonionic surfactant of the formula:               said surfactant having a cloud point in the range of from 53°C to 56°C.  The process is particularly useful for making knitted nylon fabrics hydrophilic and hence suitable for use in underwear and other garments where absorption of perspiration is desired.